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Monday, June 19, 2023

Physician assistant

From Wikipedia, the free encyclopedia

A Physician Assistant or Physician Associate (PA) is a type of healthcare professional. While these job titles are used internationally, there is significant variation in training and scope of practice from country to country, and sometimes between smaller jurisdictions such as states or provinces. Depending on location, PAs practice semi-autonomously under the supervision of a physician, or autonomously performing a subset of medical services classically provided by physicians.

The educational model was initially based upon the accelerated training of physicians in the United States during the shortage of qualified medical providers during World War II. Since then, the use of PAs has spread to at least 16 countries around the world. In the US, PAs may diagnose illnesses, develop and manage treatment plans, prescribe medications, and serve as a principal healthcare provider. In many states PAs are required to have a direct agreement with a physician. In the UK, PAs were introduced in 2003. They support the work of the healthcare team, but are dependent clinicians requiring supervision from a physician. They cannot prescribe medications nor request ionising radiation investigations (e.g. x-ray) in the UK. PAs are widely used in Canada. The model began during the Korean war and transitioned to the present concept in 2002. Skills and scope of privileges are similar to those in the US.

Nomenclature

The occupational title of physician assistant and physician associate originated in the United States in 1967 at Duke University. The role has been adopted in the US, Canada, UK and Ireland, each with their own nomenclature. The role has been adopted in the US, Canada, United Kingdom, Republic of Ireland, Netherlands, Australia, New Zealand, India, Israel, Poland, Bulgaria, Myanmar, Switzerland, Liberia, Ghana, and by analogous names throughout Africa, each with their own nomenclature and education structure.

Jurisdiction Title Abbreviation Test
Certifying Authority

Services

Physician assistants or associates may:

  • conduct patient interviews and take medical histories
  • conduct physical examinations
  • order and interpret diagnostic tests and exams (in some countries)
  • diagnose illnesses
  • formulate treatment plans
  • coordinate and manage care
  • perform medical procedures
  • prescribe medications (in some countries)
  • conduct clinical research
  • provide patient counselling
  • offer advice on preventative health care
  • first assist in surgery

Workplaces

Physician assistants or associates train to work in settings such as hospitals, clinics and other types of health facilities, or virtually via telemedicine. PAs are commonly found working in teaching and research as well as hospital administration and other clinical environments. PAs may practice in primary care or medical specialties, including emergency medicine, surgery and cardiology.

Training

Physician assistant (or associate) education is shorter than a medical degree required to become a physician. It also typically does not involve residency training, although this is increasingly offered in a variety of specialties.

Renewal of certification is usually required every few years, varying by jurisdiction.

History

In 1961 Charles Hudson recommended that the American Medical Association create new medical provider certifications. Eugene A. Stead of the Duke University Medical Center assembled the first class of physician assistants in 1965, composed of four former US Navy Hospital Corpsmen. He based the curriculum of the PA program on his first-hand knowledge of the fast-track training of medical doctors during World War II. Two other physicians, Richard Smith at the University of Washington, and Hu Myers at Alderson-Broaddus College launched their own programs in the mid-late 1960s. J. Willis Hurst started the Emory University Physician Assistant Program in 1967.

The Liberian model of PAs was a curriculum intended for graduates to work in areas absent of physicians as physician substitutes. Advisors for this program included UNICEF, American physicians and Agnes N. Dagbe, MS, RN, a Liberian nurse educated in the US. Additional training was in the USSR. The Liberian government inaugurated the program in 1965 with Dagbe as PA program.

Beginning in January 1971, the US Army produced eight classes of physician assistants, at 30 students per class, through the Academy of Health Sciences, Brooke Medical Center (academically accredited by Baylor University).

In 2017, approximately 68% of physician assistants in the United States identified as women and approximately 32% identified as men.

The profession expanded globally. It can now be found in Afghanistan, Australia, Canada, Germany, Ghana, India, Israel, Liberia, the Netherlands, New Zealand, Saudi Arabia, and the United Kingdom. As a profession physician assistants have greatly influenced the theory and conceptualization of socially accountable health professional education.

Jurisdictions

Australia

In 2011, Health Workforce Australia began developing the role of physician assistant throughout the country culminating with registration and a PA Program based out of James Cook University. Despite all initial indicators showing that the new profession would be successfully integrated into the health care system, in 2013 it was reported that the progress had floundered resulting in the majority of PAs in Australia being unemployed. However, by 2023 it was reported that the number had grown to about 159,000 PAs nationwide. Currently they are educated at the master's degree level and must graduate from an accredited physician assistant program to obtain licensure. They may work in all types of healthcare facilities as advanced practice. professionals. Priviledges may vary by state, similar as that in the US.

Canada

As of October 2018, there are approximately 800 physician assistants working in healthcare settings in Canada. The first formally trained physician assistants graduated in 1984 from the Canadian Forces Medical Services School at Borden, Ontario. The Canadian Medical Association (CMA) recognized physician assistants as a health professional in 2003. Physician assistants are able to perform medical functions such as ordering tests, diagnosing diseases, prescribing medications, treating patients, educating patients and performing various medical and surgical procedures. Physician assistants are labeled under the federal government national occupational classification code 3124: allied primary health practitioners.

Education and certification (Canada)

The first civilian physician assistant education programs were launched in 2008 at the University of Manitoba and McMaster University. In 2010, a third civilian program was launched by the consortium of physician assistant education (University of Toronto, Northern Ontario School of Medicine, and The Michener Institute). In Canada, the education of a physician assistant generally consists of three years of professional post-graduate university education. The education is delivered over a two calendar year time-frame by completing fall, winter and summer semesters for both years of the program in either a master level university physician assistant program or post-graduate professional university bachelor level physician assistant program. Physician assistant graduates become eligible for the certification exam by being a graduate of a Canadian physician assistant program that is recognized by the Physician Assistant Certification Council of Canada (Canadian Armed Forces physician assistant program, University of Manitoba, McMaster University and the consortium of physician assistant education all of which are accredited by the Canadian Medical Association).

Scope of practice (Canada)

Physician assistants resemble and provide many of the functions of Physician Assistants (PA) are academically prepared and highly skilled health care professionals who provide a broad range of medical services. PAs are physician extenders and not independent practitioners; they work with a degree of autonomy, negotiated and agreed on by the supervising physician(s) and the PA. PAs can work in any clinical setting to extend physician services. PAs complement existing services and aid in improving patient access to health care. A relationship with a supervising physician is essential to the role of the PA. " Physician assistants may be compared to the role of nurse practitioner by the general public and may be confused as the same profession. Nurse practitioners in Canada practice under an advanced nursing model. Physician assistants practice under a medical model, similarly modeled after medical school (physician) education. Nurse practitioners practice within their defined specific scope of practice autonomously and sometimes collaboratively. The defined scopes of a nurse practitioner include the areas of (family care, adults and paediatrics). Physician assistants are permitted to practice in all medical specialties by mirroring the practice of a physician with a full range of skills and scope by practicing both autonomously as a clinician and collaboratively with physicians when required. Some examples of practice areas for physician assistants include (emergency medicine, critical care medicine, cardiology, psychiatry, community and family medicine, neurology, surgery, orthopaedics, internal medicine, oncology, gastroenterology, military medicine, respirology, dermatology, women's health and many more specialities). Physician assistants may perform certain roles which have been traditionally only provided by physicians in clinical practice, making the PA's medical training over other providers unique in this regard.

Compensation (Canada)

Physician assistant salaries in civilian practice in Canada are relatively new and can range from approximately $80,000 CAD for entry level positions to $142,000 CAD a year for experienced providers which are not on call and up to $178,000 CAD for experienced providers which are on call. The physician assistant profession is newer to civilian practice in Canada. The compensation report published in 2019 by the Canadian Association of Physician Assistants outlines the typical salaries across Canada being an entry median salary of approximately $80,000 CAD and an experienced median salary of approximately $105,000 CAD.

Regulation (Canada)

Physician assistants are currently practicing across Canada in the Canadian Armed Forces as commissioned officers in domestic and international environments and have been in practice since the 1960s. Physician assistants outside of the Canadian Armed Forces practice usually in the public health care system in the provinces of Manitoba, Ontario, New Brunswick, Nova Scotia, and Alberta. Physician assistants have been regulated in Manitoba since 1999 and in New Brunswick since 2009 and are registrants of their respective provincial college of physicians and surgeons. In Ontario, Alberta and Nova Scotia the profession is not regulated at this time. Physician assistants in Ontario were introduced in 2007 to the public health system as a joint venture between the Ontario Ministry of Health and the Ontario Medical Association. In Alberta, a registry has been established for physician assistants under the College of Physicians and Surgeons of Alberta with future regulation underway. In Ontario, future regulation has been discussed by the Ontario Ministry of Health in which physician assistants would be members of the [[College of Physicians and Surgeons of Ontario|College of Physicians and Surgeons of Ontario.]] Physician assistants are represented by the Canadian Association of Physician Assistants, which originally was formed in October 1999. As of 2023, PAs scope of practice in Canada is described at their website:

The PA's scope of practice is determined on an individual basis and formally outlined in a practice contract or agreement between the supervising physician(s), the PA and often the facility or service where the PA will work. Activities may include conducting patient interviews, histories and physical examinations; performing selected diagnostic and therapeutic interventions or procedures; and counseling patients on preventive health care.

Germany

In Germany the Physician Assistant is called de:Arztassistent. It was introduced in 2007.

India

The first PA program in India was established in 1992 with a focus on expanding cardiovascular surgery. Since then, eight additional programs have developed (in total seven baccalaureate and two master's level programs).

Ireland

Physician Associates were introduced by the Health Service Executive in the mid-2010's. The Royal College of Surgeons has offered a PA postgraduate degree since 2016, with 28 graduating by January 2021. PAs may not write prescriptions.

Israel

Physician Assistants were introduced in Israel in May 2016 to help augment a shrinking physician workforce. The initial training programs have been overseen by the ministry of health directly, but transition to academic training is planned. Israeli PA education is modeled after United States' and Netherlands' approaches, and has focused on former paramedics with bachelor's degrees. As of 2022, the 100 or so PAs in Israel work exclusively within Emergency Departments. While PA scope of practice includes many emergency procedures, Israeli PAs are not currently allowed to prescribe or administer medicine in non-emergency settings.

New Zealand

In February 2015, Health Workforce New Zealand completed a Phase-2 trial of PAs who worked for a period of two years (2013–2015) in four clinical settings. Specifically, the sites included one rural emergency department and three primary care settings (two rural and one urban) located on the North and South Islands of New Zealand. At conclusion of the trial, several clinics continued to employ PAs while the process of health regulation makes its way through the government bureaucracy.

United Kingdom

The position of physician associate was established in the United Kingdom in 2005. It evolved from that of physician assistant, developed in the US in the 1960s. In 2012, the profession voted to change the name to physician associate to distinguish it from another with the same name within the NHS. Hillingdon Hospitals NHS Foundation Trust was asked to manage the recruitment of 200 physician associates who are expected to come from the US for 40 NHS trusts in September 2015.

In 2022 it was reported that private company Operose Health, owned by US company Centene Corporation, which had acquired many UK National Health Service (NHS) GP practices, was using many PAs—at less than half the cost of a GP—and allowing them essentially to act as GPs, without required supervision. A BBC reporter worked undercover at an Operose practice for six weeks, reporting on many problems. A senior GP said that the company was prioritising profit, putting patients at risk.

Faculty of Physician Associates, Royal College of Physicians (UK)

The Faculty of Physician Associates is the professional body for Physician Associates working in the United Kingdom. A joint venture between the Royal College of Physicians of London and the previous professional body, the United Kingdom Associate of Physician Associates, the Faculty officially launched in July 2015, taking over all professional responsibilities. The Faculty oversee the managed voluntary register, which all practising associates are encouraged to join, as well as setting and running the National Assessment Examination and National Recertification Examination.

Scope of practice (UK)

In the United Kingdom, PAs are dependent practitioners, and they must practice under the supervision of a physician. Physician Associates/Assistants are trained under the medical model, similarly to physicians, to deliver medical care in primary, secondary, and tertiary care settings. Upon graduation, they can specialize in any area of medicine, typically including primary care, emergency medicine, surgery, and psychiatry. PAs are held to the same standards of care as physicians. They perform tasks including diagnosis, taking medical histories, ordering and interpreting labs, treatment, and complex medical procedures. PAs cannot request ionising radiation investigations such as a CT scan or radiograph, they also cannot prescribe any medications.

Voluntary register (UK)

The title physician associate is not a protected medical profession. PAs in the U.K. are not able to prescribe or request ionising radiation imaging. No regulatory body governs PAs. Since June 2010, physician associates have been able to obtain membership of the Managed Voluntary Register for physician associates. This database, run by PAs for PAs, aims to identify all qualified PAs who are able to practise. Its intent is to maintain high standards. To remain on the register, physician associates are required to re-certify every 5–6 years and maintain up-to-date practice through accumulating continuous professional development hours, which must be completed on an annual basis.

In 2018 Matt Hancock announced a plan regulate PAs, details of which have not been announced. The General Medical Council agreed to be the regulatory body for PAs, with regulation beginning in 2022.

Training (UK)

Training is through a two-year training programme (MSc or Postgraduate Diploma) in Physician Associate Studies. As of 2017 at least 32 universities offered these programs:

Entry requirement vary; Barts and the London School of Medicine and Dentistry, Queen Mary University of London requires candidates to hold a minimum of 2:2 or above in a Life Science, Biomedical Science, or Healthcare subject.

Aberdeen requires a science-based degree with a minimum 2:1 grade achieved while St George's requires a science-based degree with a minimum 2:2 grade. This includes sport science, biology, psychology and biomedical degrees. Applicants should preferably have healthcare experience. Applications from other professionals such as nurses, radiographers and paramedics will also be considered.

University of Bradford requires a 2:1 (or above) undergraduate degree in a Life Science, Biomedical Science, or Healthcare subject. Under exceptional circumstances, extensive experience in healthcare practice may contribute/compensate absent the above requirements.

Compensation (UK)

The average starting salary of a PA-R is Band 7 (£37,000), and can vary based on locations. In London, the average salary is around £43,000 and goes up to 50k with experience, particularly with lead PAs. PAs are also able to do locum shifts on top of their full-time job. Compensation of physician associates in the United Kingdom remains lower than in the United States and Canada. However, compensation of physician associates is on the same pay band as other advanced care providers such as nurse practitioners.

United States

Nomenclature (US)

In accordance with the American Academy of Physician Associates (AAPA), the official title of the profession in the United States is "Physician Associate". While this is the official title nationally, utilization of this title may vary on the state level based on state bylaws and policies.

A physician assistant may use the initials "PA", "PA-C", "APA-C", "RPA" or "RPA-C", where the "-C" indicates "Certified" and the "R" indicates "Registered". The "R" designation is unique to a few states, mainly in the Northeast. APA stands for aeromedical physician assistant and indicates that a physician assistant successfully completed the US Army Flight Surgeon Primary Course. During training, PA students are designated PA-S. The use of "PA-C" is limited to certified PAs who comply with the regulations of the National Commission on Certification of Physician Assistants and who have passed PANCE.

Students undertaking physician assistant or associate training may refer to themselves as a physician assistant student, physician associate student, student physician assistant or student physician associate. PA students may add "S" at the end of their student designation (PA-S). Students may also use the corresponding year of their training in their student designation. For example, students in the second year of their physician assistant or physician associate training may use (PA-S2) as their student designation.

The American Academy of Physician Associates has spent over $22 million since 2018 campaigning to change the word "assistant" to "associate" in the title of physician assistant. The campaign has been heavily criticized by physicians. There are opposing views which see this change more accurately reflects the clinician's role on the patient care team Physician assistants want to be called physician associates, but doctors cry foul.

In the United States, the profession is represented by the American Academy of Physician Associates. All PAs must graduate from a nationally accredited ARC-PA program as well as passing the national certification exam. In 1970 the American Medical Association passed a resolution to develop educational guidelines and certification procedures for PAs. The Duke University Medical Center Archives had established the Physician Assistant History Center, dedicated to the study, preservation, and presentation of the history of the profession. The PA History Center became its own institution in 2011, was renamed the PA History Society, and relocated to Johns Creek, Georgia.

Education and certification (US)

As of May 2019, 243 accredited PA programs operated in the United States, with dozens more in development. Most educational programs are graduate programs leading to the award of master's degrees in either Physician Assistant Studies, Health Science (Master of Health Science), or Medical Science (MMSc), and require a bachelor's degree and Graduate Record Examination or Medical College Admission Test scores for entry. The majority of PA programs in the United States employ the CASPA application for selecting students. Professional licensure is regulated by state medical boards. PA students train at medical schools and academic medical centers across the country.

Physician Assistant Program at ODU

PA education is based on medical education; it typically requires 2 to 3 years of full-time graduate study like most master's degrees. (Medical school lasts four years plus a specialty-specific residency.) Training consists of classroom and laboratory instruction in medical and behavioral sciences, followed by clinical rotations in internal medicine, family medicine, surgery, pediatrics, obstetrics and gynecology, emergency medicine, and geriatric medicine, as well as elective rotations. PAs are not required to complete residencies after they complete their schooling (unlike physicians). Postgraduate training programs are offered in certain specialties for PAs, though these are optional and shorter in length than medical residency.

PA clinical postgraduate programs are clinical training programs that differ from on the job training given their inclusion of education and supervised clinical experience to meet learning objectives. Montefiore Medical Center Postgraduate Surgical Physician Assistant Program was established in 1971 as the first recognized clinical postgraduate PA program. 49 programs address specialties such as Neurology, Trauma/Critical Care and Oncology. 50 programs joined the Association of Postgraduate Physician Assistant Programs to establish educational standards for postgraduate PA programs.

In the United States, a graduate from an accredited PA program must pass the NCCPA-administered Physician Assistant National Certifying Exam (PANCE) before becoming a PA-C; this certification is required for licensure in all states. The content of the exam is covered in the PANCE BLUEPRINT. In addition, a PA must log 100 Continuing Medical Education hours and reregister his or her certificate with the NCCPA every two years. Every ten years (formerly six years), a PA must also recertify by successfully completing the Physician Assistant National Recertifying Exam (PANRE) There is a growing number of doctoral programs for certified PAs leading to a Doctor of Medical Science (DMSc) but there is no requirement for one to have a doctorate in order to practice. "National Physician Assistant Week" is celebrated annually in the US from October 6 through October 12. This week was chosen to commemorate the anniversary of the first graduating physician assistant class at Duke University on October 6, 1967. October 6 is also the birthday of the profession's founder, Eugene A. Stead, Jr., MD.

Scope of practice (US)

Physician assistants have their own licenses with distinct scope of practice. Each of the 50 states has different laws regarding the prescription of medications by PAs and the licensing authority granted to each category within that particular state through the Drug Enforcement Administration (DEA). PAs in Kentucky and Puerto Rico are not allowed to prescribe any controlled substances. Several other states place a limit on the type of controlled substance or the quantity that can be prescribed, dispensed, or administered by a PA. Depending upon the specific laws of any given state board of medicine, the PA must have a formal relationship on file with a collaborative physician. The collaborating physician must also be licensed in the state in which the PA is working, although he or she may physically be located elsewhere. Physician collaboration can be in person, by telecommunication systems or by other reliable means (for example, availability for consultation). In emergency departments the laws governing PA practice differ by state, generally allowing a broad scope of practice and limited direct supervision.

During the COVID-19 pandemic, several state governments changed regulations regarding PA scope of practice, including:

  • On May 21, 2020, the law S.B. 1915 was signed by Oklahoma Governor Kevin Stitt. This law allows Physician Assistants to become primary care providers and receive direct pay from insurers. The reference of "supervision" was changed to "delegating" in regards to physician responsibility. This law also allows PAs to legally volunteer in the case of disaster or emergency.
  • On May 27, 2020, Governor Tim Walz signed into Minnesota law the Omnibus Healthcare Bill S.F. 13. This law removes references to physician responsibility of supervision and delegation of care provided by PAs. The law also removes delegated prescriptive authority.

Employment (US)

The first employer of PAs was the then-Veterans Administration, known today as the Department of Veterans Affairs. Today it is the largest single employer of PAs, employing nearly 2,000.

According to the AAPA, as of 2020 there are more than 148,560 certified PAs in the United States, up from 115,547 in 2016.

Money magazine, in conjunction with Salary.com, listed the PA profession as the "fifth best job in America" in May 2006, based both on salary and job prospects, and on an anticipated 10-year job growth of 49.65%. In 2010, CNN Money rated the physician assistant career as the number two best job in America. In 2012, Forbes rated the physician assistant degree as the number one master's degree for jobs. In 2015, Glassdoor rated physician assistant as the number one best job in America. In 2021, US News & World Report rated physician assistant as the number one best job in America.

The US Department of Labor Bureau of Labor Statistics report on PAs states, "...Employment of physician assistants is projected to grow 37 percent from 2016 to 2026, much faster than the average for all occupations..." This is due to several factors, including an expanding health care industry, an aging baby-boomer population, concerns for cost containment, and newly implemented restrictions to shorten physician resident work hours.

In the 2008 AAPA census, 56 percent of responding PAs worked in physicians' offices or clinics and 24 percent were employed by hospitals. The remainder were employed in public health clinics, nursing homes, schools, prisons, home health care agencies, and the United States Department of Veterans Affairs Fifteen percent of responding PAs work in counties classified as non-metropolitan by Economic Research Service of the United States Department of Agriculture; approximately 17% of the US population resides in these counties.

For PAs in primary care practice, malpractice insurance policies with $100,000–300,000 in coverage can cost less than $600 per year; premiums are higher for PAs in higher-risk specialties.

Compensation (US)

According to Bureau of Labor Statistics, in 2020 the median pay for physician assistants working full-time was $115,390 per year or $55.48 per hour, and the highest 10 percent earned more than $162,470. Physician assistants in emergency medicine, dermatology, and surgical subspecialties may earn up to $200,000 per year.

Federal government, uniformed services, and US armed forces (US)

PAs are employed by the United States Department of State as foreign service health practitioners. PAs working in this capacity may be deployed anywhere in the world where there is a State Department facility. They provide primary care to US government employees and their families in American embassies and consulates around the world. An important part of their jobs is to get to know what resources are available locally that they can count on in an emergency. They have other important roles, such as advising their ambassadors on the health situation in the country and provide health education to the diplomatic community. In order to be considered for the position, these PAs must be licensed and have at least two years of recent experience in primary care.

Physician Assistant in the US Army

Military PAs serve in the White House Medical Unit, where they provide care to the president and vice president and their families as well as White House staff.

They are employed by several organizations with the intelligence community, specifically the Central Intelligence Agency. While much of the job description is classified, they work under the Directorate of Support and are deployed to "austere environments" where they provide medical care, including trauma stabilization, and teach in the fields of survival, field medicine, and tactical combat casualty care.

United States Army PAs serve as Medical Specialist Corps officers, typically within Army combat or combat support battalions located in the continental United States, Alaska, Hawaii, and overseas. These include infantry, armor, cavalry, airborne, artillery, and (if the PA qualifies) special forces units. They serve as the "front line" of Army medicine and along with combat medics are responsible for the total health care of soldiers assigned to their unit, as well as of their family members.

PAs also serve in the Air Force and Navy as clinical practitioners and aviation medicine specialists, as well as in the Coast Guard and Public Health Service. The skills required for these PAs are similar to that of their civilian colleagues, but additional training is provided in advanced casualty care, medical management of chemical injuries, aviation medicine, and military medicine. In addition, military PAs are also required to meet the officer commissioning requirements, and maintain the professional and physical readiness standards of their respective services.

The marine physician assistant is a US Merchant Marine staff officer. A certificate of registry is granted through The United States Coast Guard National Maritime Center located in Martinsburg, West Virginia. Formal training programs for marine physician assistants began in September, 1966 at the Public Service Health Hospital located in Staten Island, N.Y.

Combat medic

From Wikipedia, the free encyclopedia
 
A U.S. Army Medical Corps team at work during the Battle of Normandy
 
U.S. Navy Hospital Corpsman providing treatment to a wounded Iraqi soldier, 2003.

A combat medic is responsible for providing emergency medical treatment at a point of wounding in a combat or training environment, as well as primary care and health protection and evacuation from a point of injury or illness. Additionally, medics may also be responsible for the creation, oversight, and execution of long-term patient care plans in consultation with or in the absence of a readily available doctor or advanced practice provider. Combat medics may be used in hospitals and clinics, where they have the opportunity to work in additional roles, such as operating medical and laboratory equipment and performing and assisting with procedures.

Israel Defense Forces medical personnel coordinating relief efforts after the 2010 Haiti earthquake

Canada

Training

All Regular Force Medical Technicians begin training with the Canadian Forces Leadership and Recruit School in Saint-Jean-sur-Richelieu, Quebec. Then they begin Occupational training at The Canadian Forces Health Services Training Center in Borden, Ontario, where they are taught how to maintain medical supplies and equipment, screen patients, implement patient care plans, treat medical conditions, administer diagnostic procedures, medications, and continuous infusions. They also learn how to manage airways and assist with minor surgical procedures setting up deployed medical facilities and treating casualties in an operational and CBRNE environment over the course of 47-48 weeks. They also earn the Primary Care Paramedic Level 1 certification. Advanced training can include, Preventive Medicine, Biomedical electronics, and Aviation Physiology, among others.

Assignments

Medical Technicians may be posted to any Canadian ship, or base as part of the base emergency response or as part of a clinic or hospital. They can also be deployed as the medical detachment of an infantry platoon, as part of a MEDEVAC helicopter team, or on a naval vessel. It is customary for soldiers to refer to their platoon medic as "Doc", similar to the US tradition.

United States

Training and certifications

All military medical training in the United States takes place at Joint Base San Antonio, Fort Sam Houston, Texas. Here, among other medical jobs, Army Combat Medics, Air Force Medical Technicians, and Navy Hospital Corpsman complete their respective medical training programs. While there are similarities in the training and skills, each branch also incorporates training specific to their services’ needs and mission.

Although Combat Medics are certified at the EMT-B (Emergency Medical Technician, Basic) level upon graduation, their scope of practice often parallels and sometimes surpasses that of a paramedic. Their scope is expanded upon by the medical provider(s) assigned to the unit, who oversees the protocols and training of assigned medical personnel. Army medics follow a career progression sequence, wherein each rank above Specialist/Corporal (E4) comes with additional required knowledge, skills, and competencies.

Medics remain very versatile and may even diagnose illnesses and perform procedures usually performed by Advanced Practice Providers (Physician Assistants/Nurse Practitioners), and Physicians. Combat Paramedic Course, Prolonged Field Care Course, Flight Medic/Critical Care Course, and advanced Tactical Combat Casualty Care (TCCC) such as cadaver labs are some of the educational opportunities available to medics as they progress, which include the use of goats as training aids due to their similarity to human physiology.

Although most of the training translates into civilian certifications/licenses, medics often train and practice on skills and with medications outside of their civilian counterparts' scope of practice. Many programs are dedicated to and who provide preference for military medics transitioning into Paramedic, Registered Nurse (RN), and Physician Assistant (PA) educations.

Assignments

Hospitals and clinics

Medics may also be assigned to combat support hospital units, forward surgical teams, and military treatment facilities and clinics where they can fulfill almost any role, from administrative duties to laboratory and medical equipment operations.

Field units

When assigned to non-medical field units such as infantry, armored cavalry, artillery, combat engineers and military police, the personnel of the medical platoon are organic to the Headquarters and Headquarters Company/Detachment. The platoon is usually composed of three sections: Ambulance/Evac Section, Combat Medic/Line Medic Section, and the BAS/Treatment section. Each section is led by team leader, and the scope of practice all falls under the medical providers.

Ambulance/Evac medics function just like a civilian ambulance would. They are responsible for responding to and transporting patients from a point of injury to, as well as between medical care facilities.

The Battalion Aid Station (BAS)/Treatment Medics function similar to an urgent care/ small emergency department depending on size and resources. Under the direction of the medical provider and team leaders or sergeants, they intake, triage, and stabilize or treat patients for transfer to another tier or discharge. Battalion Aid Stations are more mobile than Combat Support Hospitals, but have less resources available. They are intended to move as the unit advances, whereas a Combat Support Hospital would have a more long-term fixed position.

Line medics are the most independent of the 3. Although they belong to Headquarters, they are attached to other platoons within a company and oversee the medical care of the soldiers assigned to them which can be anywhere from 30 to 60 Soldiers. They become a part of the group they are assigned to an with the exception of a few tasks, they do everything that their assigned soldiers do from training to missions. They are the ones who would be the first to treat an injured person and direct their immediate medical care, and are often the first to recognize when something is wrong with one of their soldiers because they spend so much time with them. They may also be the subject matter expert in advising leaders of medical planning for missions. Their co-location with the troops they are assigned allows them to easily monitor ongoing health.

Being a line medic requires them to carry whatever a regular soldier carries, in addition to an aid bag and other medical supplies. These medics must be very physically fit, and able to function well in highly stressful tactical situations. They are expected to be very independent and function on their own as extensions of the provider. They make field diagnosis and manage the conditions appropriately, deferring to the provider when necessary.

In the U.S. armed forces, service members in line units often refer to their assigned combat medic or hospital corpsman as "Doc."

Geneva Convention protection

Israel Defense Forces field doctors training in Israel

In 1864, sixteen European states adopted the first-ever Geneva Convention to save lives and alleviate the suffering of wounded and sick persons in the battlefield, as well as to protect trained medical personnel as non-combatants, in the act of rendering aid.

Chapter IV, Article 25 of the Geneva Convention states that: "Members of the armed forces specially trained for employment, should the need arise, as hospital orderlies, nurses or auxiliary stretcher-bearers, in the search for or the collection, transport or treatment of the wounded and sick shall likewise be respected and protected if they are carrying out these duties at the time when they come into contact with the enemy or fall into his hands." Article 29 reads: "Members of the personnel designated in Article 25 who have fallen into the hands of the enemy, shall be prisoners of war, but shall be employed on their medical duties insofar as the need arises."

According to the Geneva Convention, knowingly firing at a medic wearing clear insignia is a war crime.

In modern times, most combat medics carry a personal weapon, to be used to protect themselves and the wounded or sick in their care. By convention this is limited to small arms (including rifles). During World War II, for example, Allied medics serving the European and Mediterranean areas usually carried the M1911A1 pistol while those serving the Pacific theater carried pistols or M1 carbines. The German medics (Sanitätssoldaten) in medical units were issued with standard Kar98K, while the infantry level stretcher-bearers (Krankenträgeren) and medical NCOs (Sanitätsunteroffiziere) were issued Luger or Walther pistols. When and if they use their arms offensively, they then sacrifice their protection under the Geneva Conventions. In today's combat environment, many times non-conventional forces do not follow the Geneva Conventions, and actually deliberately target medical personnel identified by their equipment or insignia. Consequently, based on the tactical environment medics in some armies carry an M4 in addition to their pistol.

History

Capsarii depicted tending to injured soldiers on Trajan's Column

The Roman Army used combat medics which were referred to as Capsarii after the box (capsa) of bandages which they carried. Forts could also have hospitals integrated into their designs.

Surgeon Dominique Jean Larrey directed the Grande Armée of Napoleon to develop mobile field hospitals, or ambulances volantes ('flying ambulances'), in addition to a corps of trained and equipped soldiers (infirmiers tenues de service) to aid those on the battlefield. Before Larrey's initiative in the 1790s, wounded soldiers were either left amid the fighting until the combat ended or their comrades would carry them to the rear line.

During the American Civil War, musicians had the double duty of acting as stretcher-bearers to move the wounded to field hospitals and assisting surgeons operating on patients. However, the results of using musicians as medical assistants were uneven, and while some became adept in the role others were more hindrance than help. Surgeon (Major) Jonathan Letterman, Medical Director of the Army of the Potomac, realized a need for an integrated medical treatment and evacuation system, equipped with dedicated vehicles, organizations, facilities, and personnel. The Letterman plan for a dedicated ambulance corps was first implemented in September 1862 at the Battle of Antietam, Maryland, where it proved its worth. Soon the U.S. Ambulance Corps became an integral part of the Union Army. The Confederate States Army also implemented an ambulance corps, but it was plagued with shortages of men and materiel, making its job more difficult.

The United States Army's need for medical and scientific specialty officers to support combat operations resulted in the creation of two temporary components: the U.S. Army Ambulance Service, established on June 23, 1917, and the Sanitary Corps, established on June 30, 1917. Officers of the Sanitary Corps served in medical logistics, hospital administration, patient administration, resource management, x-ray, laboratory engineering, physical reconstruction, gas defense, and venereal disease control. They were dedicated members of the medical team that enabled American generals to concentrate on enemy threats rather than epidemic threats. On August 4, 1947, Congress created the Navy Medical Service Corps.

In the United States, a report entitled "Accidental Death and Disability: The Neglected Disease of Modern Society (1966)", was published by National Academy of Sciences and the National Research Council. Better known as "The White Paper" to emergency providers, it revealed that soldiers who were seriously wounded on the battlefields of Vietnam had a better survival rate than those individuals who were seriously injured in motor vehicle accidents on California freeways. Early research attributed these differences in outcome to a number of factors, including comprehensive trauma care, rapid transport to designated trauma facilities, and a new type of medical corpsman, one who was trained to perform certain critical advanced medical procedures such as fluid replacement and airway management, which allowed the victim to survive the journey to definitive care.

Red Cross, Red Crescent, and Red Star of David

Norwegian Army medics wearing red cross armbands during an exercise in 2007
 
An Iraqi Ground Forces medic next to his military ambulance featuring a red crescent emblem

The International Committee of the Red Cross, a private humanitarian institution based in Switzerland, provided the first official symbol for medical personnel. The first Geneva Convention, originally called for "Amelioration of the Condition of the Wounded and Sick in Armed Forces in the Field", officially adopted the red cross on a field of white as the identifying emblem. This symbol was meant to signify to enemy combatants that the medic qualifies as a non-combatant, at least while providing medical care. Islamic countries use a Red Crescent instead, originating from the Russo-Turkish War, when the Ottoman Empire declared that it would use a red crescent instead of a red cross as its emblem, although it agreed to respect the red cross used by the opposing Russian Empire.

Although these symbols were officially sponsored by the International Federation of Red Cross and Red Crescent Societies, the Magen David Adom, Israel's emergency relief service, use the "Magen David", a red star of David on a white background. To enable the MDA to become a fully recognized and participating member of the International Red Cross and Red Crescent Movement, Protocol III was adopted, authorizing the use of the Red Crystal. For indicative use on foreign territory, any national society can incorporate its unique symbol into the Red Crystal. Under Protocol III, the MDA continues to employ the red Magen David for domestic use, and employs the Red Crystal on international relief missions.

Modern day

A U.S. Army combat medic examining a young child during the War in Afghanistan in 2009. Note that the medic lacks distinguishing features or medic insignia, to prevent targeting by insurgents.

Medical personnel from most Western nations carry weapons for protection of themselves and their patients but remain designated non-combatants, wearing the red cross, crescent or crystal. In the United States Armed Forces, MEDEVAC vehicles display a large Red Cross on a white background. However, ground forces do not display this due to increased targeting of medical personnel by insurgents.

Traditionally, most United States medical personnel also wore a distinguishing red cross, to denote their protection as non-combatants under the Geneva Convention. This practice continued into World War II. However, the enemies faced by professional armies in more recent conflicts are often insurgents who either do not recognize the Geneva Convention or choose not to adhere to it, and thus readily engage all personnel, irrespective of non-combatant status. As their non-combatant status is not respected, many US medics no longer wear non-combatant markings. This can enable medics to be used as medically trained soldiers, fighting aggressively rather than just in self-defence. Combat Medics in the United States Army and United States Navy Hospital Corpsmen are virtually indistinguishable from regular combat troops, except for the extra medical equipment they carry.

The modern-day interpretation of the U.S. Army doctrine requires medics to carry one primary weapon and, if possible, a secondary weapon. It is also common to find American combat medics who are no longer wearing the red or white cross because it is considered unethical to do so when the combat medic is carrying a weapon and could engage in actual combat.

In the U.S. Navy, enlisted medical personnel are known as corpsmen, not medics. The colloquial form of address for a Hospital Corpsman and Army Medics is "Doc". In the Army and U.S. Marine Corps, this term is generally used as a sign of respect. The U.S. Navy deploys FMF Hospital Corpsman attached to U.S. Marine Corps units as part of the Fleet Marine Force. Since the U.S. Marine Corps is part of the Department of the Navy, it relies on Navy corpsmen and other Naval medical personnel for medical care.

U.S. Air Force aerospace medical services technicians have frequently served attached to U.S. Army units in recent conflicts. Though all combat medical personnel are universally referred to as "medic", within different branches of the U.S. military, the skill level, quality of training and scope of work performed by medics varies from branch to branch and unit to unit.

As a result of the 2005 BRAC, the U.S. Department of Defense has moved most medical training for all branches of the armed forces to Fort Sam Houston of Joint Base San Antonio. A new Medical Education and Training Campus was constructed and the Air Force's 937th Training Group and Naval Hospital Corps School were relocated to Fort Sam Houston, joining the Army's existing Army Medical Department Center & School. Although each service has some training particular to its branch, the bulk of the course material and instruction is shared between medical personnel of the different services.

Battlefield medicine

From Wikipedia, the free encyclopedia
 
An illustration of the Wound Man, showing a variety of wounds from the Feldbuch der Wundarznei (Field manual for the treatment of wounds) by Hans von Gersdorff, (1517); illustration by Hans Wechtlin.

Battlefield medicine, also called field surgery and later combat casualty care, is the treatment of wounded combatants and non-combatants in or near an area of combat. Civilian medicine has been greatly advanced by procedures that were first developed to treat the wounds inflicted during combat. With the advent of advanced procedures and medical technology, even polytrauma can be survivable in modern wars. Battlefield medicine is a category of military medicine.

Chronology of battlefield medical advances

A wounded knight is carried on a medieval stretcher.
  • During Alexander the Great’s military campaigns in the fourth century BC, tourniquets were used to stanch the bleeding of wounded soldiers. Romans used them to control bleeding, especially during amputations. These tourniquets were narrow straps made of bronze, using leather only for comfort.
  • An early stretcher, likely made of wicker over a frame, appears in a manuscript from c.1380. Simple stretchers were common with militaries right through the middle of the 20th century.
  • During the Battle of Shrewsbury in 1403, Prince Henry had an arrow removed from his face using a specially designed surgical instrument.
  • Ambulances or dedicated vehicles for the purpose of carrying injured persons were first used by Spanish soldiers during the Siege of Málaga (1487).
  • French military surgeon Ambroise Paré (1510–90) pioneered modern battlefield wound treatment. His two main contributions to battlefield medicine are the use of dressing to treat wounds and the use of ligature to stop bleeding during amputation.
  • The practice of triage, pioneered by Dominique Jean Larrey during the Napoleonic Wars (1803–1815). He also pioneered the use of ambulances in the midst of combat ('ambulances volantes', or flying ambulances). Prior to this, military ambulances had waited for combat to cease before collecting the wounded by which time many casualties would have succumbed to their injuries.
  • Russian surgeon Nikolay Ivanovich Pirogov was one of the first surgeons to use ether as an anaesthetic in 1847, as well as the very first surgeon to use anaesthesia in a field operation during the Crimean War.
  • American Civil War surgeon Jonathan Letterman (1824–72) originated modern methods of medical organization within armies.
  • The Relief Society for Wounded Soldiers, forerunner of the International Committee of the Red Cross (ICRC) was founded in 1863 in Geneva. The ICRC advocated for the establishment of national aid societies for battlefield medical relief, and stood behind the First Geneva Convention of 1864 which provided neutrality for medics, ambulances, and hospitals.
  • In the late 19th century, the influence of notable medical practitioners like Friedrich von Esmarch and members of the Venerable Order of Saint John pushing for every adult man and woman to be taught the basics of first aid eventually led to institutionalised first-aid courses amongst the military and standard first-aid kits for every soldier.
  • Advances in surgery - especially amputation - during the Napoleonic Wars and First World War on the battlefield of the Somme.
  • Medical advances also provided kinder methods for treatment of battlefield injuries, such as antiseptic ointments, which replaced boiling oil for cauterizing amputations.
  • During the Spanish Civil War there were two major advances. The first one was the invention of a practical method for transporting blood. Developed in Barcelona by Duran i Jordà, the technique mixed the blood of the donors with the same blood type and then, using Grífols glass tubes and a refrigerator truck, transported the blood to the frontline. A few weeks later Norman Bethune developed a similar service. The second advance was the invention of the mobile operating room by the Catalan Moisès Broggi, who worked for the International Brigades.
A US Army soldier, wounded by a Japanese sniper, undergoes surgery during the Bougainville Campaign in World War II.
  • The establishment of fully equipped and mobile field hospitals such as the Mobile Army Surgical Hospital was first practiced by the United States in World War II. It was succeeded in 2006 by the Combat Support Hospital.
  • The use of helicopters as ambulances, or MEDEVACs, was first practiced in Burma in 1944. The first MEDEVAC under fire was done in Manila in 1945 where over 70 troops were extracted in five helicopters, one and two at a time.
  • The extension of emergency medicine to pre-hospital settings through the use of emergency medical technicians.
  • The use of remote physiological monitoring devices on soldiers to show vital signs and biomechanical data to the medic and MEDEVAC crew before and during trauma. This allows medicine and treatment to be administered as soon as possible in the field and during extraction. Similar telemetry units are used in crewed spaceflight, where a flight surgeon at the Command Center can monitor vital signs. This can help to see issues before larger problems occur, such as elevated carbon dioxide levels, or a rise in body temperature indicating a possible infection.

History of Tactical Combat Casualty Care (TCCC)

In 1989, the Commander of the Naval Special Warfare Command (NAVSPECWARCOM) established a research program to conduct studies on medical and physiologic issues. The research concluded that extremity hemorrhage was a leading cause of preventable death in the battlefield. At that time, proper care and treatment was not provided immediately which often resulted in death. This insight prompted a systematic reevaluation of all aspects of battlefield trauma care that was conducted from 1993 to 1996 as a joint effort by special operations medical personnel and the Uniformed Services University of the Health Sciences. Through this 3-year research, the first version of the TCCC guidelines were created to train soldiers to provide effective intervention on the battlefield. The TCCC aims to combine good medicine with good small-unit tactics. One very important aspect that the TCCC outlined was the use of tourniquets, initially there was a belief that the use of tourniquets led to the preventable loss of an extremity due to ischemia but after careful literature search the committee arrived at the conclusion that there was not enough information out there to confirm this claim. The TCCC therefore outline the appropriate usage of tourniquets to provide effective first aid on the battlefield.

After the TCCC article was published in 1996, the program undertook 4 parallel efforts during the next 5-year period. These efforts are as follows:

  1. Presenting TCCC concepts to senior Department of Defense (DoD) line and medical leaders and advocating for their use.
  2. Identifying and developing responses to representative types of TCCC casualty scenarios.
  3. Initiating TCCC’s first strategic partnership with civilian trauma organizations—the Prehospital Trauma Life Support (PHTLS) Committee, the National Association of Emergency Medical Technicians (NAEMT), and the American College of Surgeons Committee on Trauma (ACS-COT).
  4. Expanding TCCC training beyond medical personnel to include SEAL and 75th Ranger Regiment combat leaders and nonmedical unit members.

Current applications of battlefield medicine

Over the past decade combat medicine has improved drastically. Everything has been given a complete overhaul from the training to the gear. In 2011, all enlisted military medical training for the U.S. Navy, Air Force, and Army were located under one command, the Medical Education and Training Campus (METC). After attending a basic medical course there (which is similar to a civilian EMT course), the students go on to advanced training in Tactical Combat Casualty Care.

Tactical combat casualty care (TCCC)

Tactical combat casualty care is becoming the standard of care for the tactical management of combat casualties within the Department of Defense and is the sole standard of care endorsed by both the American College of Surgeons and the National Association of EMT's for casualty management in tactical environments.

Tactical combat casualty care is built around three definitive phases of casualty care:

  1. Care Under Fire: Care rendered at the scene of the injury while both the medic and the casualty are under hostile fire. Available medical equipment is limited to that carried by each operator and the medic. This stage focuses on a quick assessment, and placing a tourniquet on any major bleed.
  2. Tactical Field Care: Rendered once the casualty is no longer under hostile fire. Medical equipment is still limited to that carried into the field by mission personnel. Time prior to evacuation may range from a few minutes to many hours. Care here may include advanced airway treatment, IV therapy, etc. The treatment rendered varies depending on the skill level of the provider as well as the supplies available. This is when a corpsman/medic will make a triage and evacuation decision.
  3. Tactical Evacuation Care (TACEVAC): Rendered while the casualty is evacuated to a higher echelon of care. Any additional personnel and medical equipment pre-staged in these assets will be available during this phase.

Since "90% of combat deaths occur on the battlefield before the casualty ever reaches a medical treatment facility" (Col. Ron Bellamy) TCCC focuses training on major hemorrhaging and airway complications such as a tension-pneumothorax. This has driven the casualty fatality rate down to less than 9%.

Interventions used

Listed below are interventions that a TCCC provider may be expected to perform depending on the phase of TCCC they are at and their level of training. This list is not comprehensive and may be subject to change with future revisions in TCCC guidelines.

Hemorrhage control interventions include the use of extremity tourniquets, junctional tourniquets, trauma dressings, wound packing with compressed gauze and hemostatic dressings, and direct pressure. Newer devices approved for use by the CoTCCC for hemorrhage control include the iTClamp and XStat. Pharmacological options also include tranexamic acid, and hemostatic agents such as zeolite and chitosan.

In managing a casualty’s airway, a TCCC provider may position the casualty in the recovery position or utilize airway adjuncts such as nasopharyngeal airways, oropharyngeal airways, and supraglottic airways. They may also utilize the jaw thrust and head-tilt/ chin-lift maneuver to open a casualty's airway. Advanced TCCC providers may also perform endotracheal intubation and cricothyroidotomy.

Respiratory management largely revolves around the use of chest seals, vented and unvented, and needle decompressions to manage tension pneumothoraxes.

In circulation management a TCCC provider may obtain intravenous/ intraosseous access for the administration of fluids such as normal saline, lactated Ringer’s solution, whole blood, and colloids and plasma substitutes for fluid resuscitation. This also provides a route for the administration of other drugs in accordance with the provider’s scope of practice.

Head injuries would indicate for cervical spine immobilization to the best of the provider’s abilities if deemed appropriate in a given setting, or the use of devices such as a cervical collar.

As trauma-induced hypothermia is a leading cause of battlefield deaths, a provider may also perform hypothermia prevention can be accomplished through the use of a Hypothermia Prevention and Management Kit or emergency blanket, the placement of a casualty on an insulated surface, and the removal of wet clothing from a casualty’s body.

Care under fire

Care under fire is care provided at the point of injury immediately upon wounding while the casualty and care provider remain under effective hostile fire. The casualty should be encouraged to provide self-aid and continue remain engaged in the firefight if possible. If unable to do so, the casualty should be encouraged to move behind cover or "play dead". Due to the high risk of injury to the care-provider and limited resources at this phase, care provided to the casualty should be limited to controlling life-threatening hemorrhage with tourniquets and preventing airway obstruction by placing casualty in the recovery position. The primary focus during care under fire should be winning the firefight to prevent further casualties and further wounding of existing casualties.

Tactical field care

Tactical field care phase begins when the casualty and care-provider are no longer under imminent threat of injury by hostile actions. Though the level of danger is lessened, care-providers should exercise caution and maintain good situational awareness as the tactical situation may be fluid and subject to change. The tactical field care phase enables the provision of more comprehensive care according to care providers' levels of training, tactical considerations, and available resources. Major tasks that are to be completed in the tactical field care phase include the rapid trauma survey, the triage of all casualties, and the transport decision.

Tactical evacuation care

Tactical evacuation care refers to care provided when a casualty is being evacuated and en-route to higher levels of medical care. Care providers at this phase are at even less risk of imminent harm as result of hostile actions. Due to improved access to resources and the tactical situation, more advanced interventions can be provided to casualties such as endotracheal intubation. Patient re-assessments and the addressing of issues that were not or were inadequately addressed previously are also major components of this phase.

In tactical evacuation (TACEVAC), casualties are moved from a hostile environment to a safer and more secure location to receive advanced medical care. Tactical evacuation techniques use a combination of air, ground and water units to conduct the mission depending on the location of the incident and medical centres. Ground vehicle evacuations are more prevalent in urban locations that are in close proximity to medical facilities. Requests for evacuation of casualties and pertinent information are typically communicated through 9-Line MEDEVAC and MIST reports.

Tactical evaluation is an umbrella term that encompasses both medical evacuation (MEDEVAC) and casualty evacuation (CASEVAC). Medical evacuation platforms are typically not engaged in combat except in self-defence and defence of patients. MEDEVAC takes place using special dedicated medical assets marked with a red cross. Casualty evacuation is through non-medical platforms and may include a Quick-Reaction force aided by air support.

For aircraft involved TACEVAC situations there are many considerations that need to be accounted for. Firstly, the flying rules vary widely depending on the aircraft and units in play. The list of determinants to create the TACEVAC strategy include the distances and altitudes involved, time of day, passenger capacity, hostile threat, availability of medical equipment/personnel, and icing conditions. As mentioned TACEVAC is more advanced than TCCC, it also includes training to/for:

  • improve breathing 
  • provide supplemental oxygen 
  • administer Tranexamic acid (TXA) 
  • deal with traumatic brain injuries 
  • fluid resuscitation
  • blood product administration
  • blood transfusion
  • preventing and treating hypothermia

Canadian armed forces

There are three levels of tactical combat casualty care providers in the Canadian Armed Forces.

Combat first aid

Every soldier receives a two-day combat first aid training course. The course focuses on treating hemorrhages, using tourniquets and applying dressings, and basic training for casualty management.

Tactical combat casualty care

A select number of soldiers are chosen to participate in an intense 2-week tactical combat casualty care course where soldiers are provided with additional training. Overall, they are trained to work as medic extenders since they work under the direction of medics.

Tactical medicine

The tactical medicine (TACMED) course is offered exclusively to medics. The tactical medicine program provides training for advanced tactical combat casualty care and is the highest level of care provided by the Canadian Armed Forces in a battlefield setting. Medics are trained to treat and manage patients using the MARCHE protocol. The MARCHE protocol prioritizes potential preventable causes of death in warfare as follows:

  1. Massive hemorrhage control
  2. Airway management
  3. Respiratory management
  4. Circulation
    1. Bleeding control
    2. Intravenous (IV)/ intraosseous (IO) access
    3. Fluid resuscitation
    4. Tourniquet reassessment
  5. Hypothermia prevention
  6. Head injuries
  7. Eye injuries
  8. Everything else
    1. Monitor patient
    2. Pain management
    3. Head-to-toe assessment
    4. Address all wounds found
    5. Antibiotics
    6. Tactical evacuation preparation
    7. Documentation of care and findings

United States

Care under fire

Care under fire happens at the point of injury. According to tactical combat casualty care guidelines, the most effective way to reduce further morbidity and mortality is to return fire at enemy combatants by all personnel. The priority is to continue the combat mission, gain fire superiority, and then treat casualties. The only medical treatment rendered in care under fire is the application of direct pressure on massive bleeding. Tactical combat casualty care recommends a tourniquet as the single most important treatment at the point of injury. It is recommended during care under fire to quickly place tourniquets over clothing, high, and tight; the tourniquet should be reassessed when out of danger in the tactical field care phase.

Tactical field care

Tactical field care is considered to be the backbone of Tactical Combat Casualty Care and consists of care rendered by first responders or prehospital medical personnel while still in the tactical environment. The acronyms MARCH and PAWS help personnel remember crucial treatment steps while under duress.

MARCH

The MARCH acronym is used by personnel to remember the proper order of treatment for casualties.

Massive hemorrhage. The most potentially survivable cause of death is hemorrhage from extremity bleeds, however more than 90% of 4596 combat mortalities post September 11, 2001 died of hemorrhage associated injuries. It is recommended to apply a Committee on Tactical Combat Casualty Care (CoTCCC) approved tourniquet for any life-threatening extremity hemorrhages. Tourniquets during tactical field care should be placed under clothing 2 to 3 inches above the wound, with application time written on the tourniquet.

Airway. Non-patent or closed airway is another survivable cause of death. Airway injuries typically occur due to inhalation burns or maxillofacial trauma. If a person is conscious and speaking they have a patent open airway, while nasopharyngeal airway could benefit those who are unconscious and breathing. However, unconscious casualties who are not breathing could require surgical cricothyroidotomy, as endotracheal intubation is highly difficult in tactical settings.

Respirations. Tension pneumothorax (PTX) develops when air trapped in the chest cavity displaces functional lung tissue and puts pressure on the heart causing cardiac arrest. Thus, open chest wounds must be sealed using a vented chest seal. Tension pneumothorax should be decompressed using a needle chest decompression (NCD) with a 14 gauge, 3.25 inch needle with a catheter. Ventilation and/or oxygenation should be supported as required.

Circulation. It is more important to stem the flow of bleeding than to infuse fluids, and only casualties in shock or those who need intravenous (IV) medications should have IV access. Signs of shock include unconsciousness or altered mental status, and/or abnormal radial pulse. IV should be applied using an 18 gauge catheter and saline lock in tactical field care, secured by transparent would-dressing film. Tranexamic acid (TXA) should be given as soon as possible to casualties in or at risk of hemorrhagic shock. An intraosseous (IO) device could also be used for administering fluids if IV access is not feasible.

Head injury/hypothermia. Secondary brain injury is worsened by hypotension (systolic blood pressure under 90 mmHg), hypoxia (peripheral capillary oxygen saturation under 90%), and hypothermia (whole body temperature below 95 Fahrenheit or 35 Celsius). Medical personnel can use the Military Acute Concussion Evaluation (MACE), while non-medical personnel can use the alert, verbal, pain, unresponsive (AVPU) scale to identify traumatic brain injury. The "lethal triad" is a combination of hypothermia, acidosis, and coagulopathy in trauma patients. Since hypothermia can occur regardless of ambient temperature due to blood loss, the Hypothermia Prevention and Management Kit (HPMK) is recommended for all casualties.

PAWS

The PAWS acronym is used by personnel to remember additional casualty care items that should be addressed.

Pain. Proper management of pain reduces stress on a casualty's mind and body, and have reduced incidents of post-traumatic stress disorder (PTSD). Pain management is shown to reduce harmful patient movement, improves compliance and cooperation, and allows for easier transport as well as improved health outcomes.

Antibiotics. All battlefield wounds are considered contaminated, and thus any penetrating injury should receive antibiotics at the point of injury as well as in tactical field care. The recommended parenteral antibiotics are 1g ertapenem or 2g cefotetan, which can treat multi drug-resistant bacteria. If the casualty can tolerate oral fluids, 400mg moxifloxacin can be administered orally instead of ertapenem or cefotetan.

Wounds. Assessing the casualty for additional wounds improves morbidity and mortality. First responders must address burns, open fractures, facial trauma, amputation dressings, and security of tourniquets. Prior to movement, reassessment of wounds and interventions is very important. Casualties with penetrating trauma to the chest or abdomen should receive priority evacuation due to the possibility of internal hemorrhage.

Splinting. Explosions (such as from improvised explosive device or land mines) that cause lower extremity traumatic amputation cause forces to move upward through the body, which may cause further bone disruption, hollow organ collapse, or internal bleeding. Thus, first responders should use the Combat Ready Clamp (CRoC), the Junctional Emergency Treatment Tool (JETT), or the SAM Junctional Tourniquet to control junctional hemorrhage and stabilize the pelvis. In cases of penetrative eye trauma, responders should first perform a rapid field test of visual acuity, then tape a rigid shield over the eye to prevent further damage, and also give 400mg oral moxifloxacin as soon as possible. Pressure must never by applied to an eye suspected of penetrative injury.

Evaluating effectiveness

In order to evaluate the effectiveness of Tactical Combat Casualty Care, a study was conducted which analyzed US military casualties who died from an injury that occurred while they were deployed to Afghanistan or Iraq from October 2001 to June 2011. Of the 4,596 casualties, 87% died in the pre-medical treatment facility, prior to receiving surgical care. Of the casualties in the pre-medical treatment facility, 75.7% of the prehospital deaths were non-survivable, while 24.3% of deaths were potentially survivable. Instantaneous non-survivable mortalities included physical dismemberment, catastrophic brain injury, and destructive cardiovascular injury. Non-instantaneous non-survivable mortalities included severe traumatic brain injury, thoracic vascular injury, high spinal cord injury, and destructive abdominal pelvic injury. These injuries are very difficult to treat given currently fielded medical therapies such as Tactical Combat Casualty Care.

In terms of potentially survivable mortalities, 8.0% of mortalities were associated with airway obstruction. Majority of mortalities (90.9%) which were classified as potentially survivable mortalities were attributed to hemorrhage, with 67.3% of the hemorrhage being truncal, 19.2% junctional, and 13.5% extremity. During the study period, there were no effective protocols put in place to control junctional or truncal sources of hemorrhage in the battlefield, which suggests a gap in medical treatment capability.

This study shows the majority of battlefield casualties which occur prior to receiving surgical care are non-survivable. However, of the casualties which are survivable, the majority of deaths can be attributed to hemorrhages. Developing protocol which can control and temporize hemorrhage in the battlefield would improve the effectiveness of Tactical Combat Casualty Care, and decreases the number of casualties in the battlefield.

Another study analyzed the effectiveness of tourniquets for hemorrhage control, which are used in Tactical Combat Casualty Care. A four-year retrospective analysis showed that out of 91 soldiers who were treated with tourniquets, 78% of tourniquets were applied effectively. The success rate for tourniquets applied to upper limbs was 94% while the success rate for tourniquets applied to lower limbs was 71%. The difference between the success rates can be attributed to the tourniquets themselves, as in another study, tourniquets applied on healthy volunteers resulted in a much lower success rate for lower limbs in comparison to upper limbs. Therefore, the tourniquets themselves can be redesigned to increase its effectiveness and improve Tactical Combat Casualty Care.

A prospective study of all trauma patients treated at the Canadian-led Role 3 multinational medical unit (Role 3 MMU) established at Kandahar Airfield Base between February 7, 2006, to May 20, 2006, was conducted to examine how Tactical Combat Casualty Care interventions are delivered. The study concluded that tourniquets are effective, but must be used appropriately. The distinction between venous and arterial tourniquets must be reinforced in Tactical Combat Casualty Care training. Tactical Combat Casualty Care courses must also train soldiers to remove tourniquets for the purposes of reassessing trauma after the patient and caregiver is no longer under enemy fire. This is because the risks of iatrogenic ischemic injury of prolonged use of tourniquets outweigh the risks of increased blood loss.

The study also identified technical errors in performing needle decompressions. All needle decompressions were performed at least 2 cm medial to the mid-clavicular line and well within the cardiac box. This may result in injury to the heart and surrounding vasculature. Tactical Combat Casualty Care training must reinforce using landmarks when performing needle decompressions. This is especially useful since soldiers may have to perform this procedure in poor lighting conditions.

Hydrogen-like atom

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