From Wikipedia, the free encyclopedia
Other namesArteriosclerotic vascular disease (ASVD)
Endo dysfunction Athero.PNG
The progression of atherosclerosis (narrowing exaggerated)
SpecialtyCardiology, angiology
SymptomsNone
ComplicationsCoronary artery disease, stroke, peripheral artery disease, kidney problems
Usual onsetYouth (worsens with age)
CausesUnknown
Risk factorsHigh blood pressure, diabetes, smoking, obesity, family history, unhealthy diet
PreventionHealthy diet, exercise, not smoking, maintaining a normal weight
MedicationStatins, blood pressure medication, aspirin
Frequency≈100% (>65 years old)

Atherosclerosis is a pattern of the disease arteriosclerosis in which the wall of the artery develops abnormalities, called lesions. These lesions may lead to narrowing due to the buildup of atheromatous plaque. Initially, there are generally no symptoms. When severe, it can result in coronary artery disease, stroke, peripheral artery disease, or kidney problems, depending on which arteries are affected. Symptoms, if they occur, generally do not begin until middle age.

The exact cause is not known. Risk factors include abnormal cholesterol levels, elevated levels of inflammatory markers, high blood pressure, diabetes, smoking, obesity, family history, and an unhealthy diet. Plaque is made up of fat, cholesterol, calcium, and other substances found in the blood. The narrowing of arteries limits the flow of oxygen-rich blood to parts of the body. Diagnosis is based upon a physical exam, electrocardiogram, and exercise stress test, among others.

Prevention is generally by eating a healthy diet, exercising, not smoking, and maintaining a normal weight. Treatment of established disease may include medications to lower cholesterol such as statins, blood pressure medication, or medications that decrease clotting, such as aspirin. A number of procedures may also be carried out such as percutaneous coronary intervention, coronary artery bypass graft, or carotid endarterectomy.

Atherosclerosis generally starts when a person is young and worsens with age. Almost all people are affected to some degree by the age of 65. It is the number one cause of death and disability in the developed world. Though it was first described in 1575, there is evidence that the condition occurred in people more than 5,000 years ago.

Signs and symptoms