Coronary Heart Disease

Heart attack: Gender matters in predicting outcomes

Sex (biological and physiological characteristics) differences are increasingly being studied to assess symptoms, risk factors and outcomes for various diseases. Now, a new pan-Canadian study led by a team from the Research ...

Feb 01, 2016
popularity3 comments 0

Coronary heart disease is the narrowing or blockage of the coronary arteries, usually caused by atherosclerosis. Atherosclerosis (sometimes called “hardening” or “clogging” of the arteries) is the buildup of cholesterol and fatty deposits (called plaques) on the inner walls of the arteries. These plaques can restrict blood flow to the heart muscle by physically clogging the artery or by causing abnormal artery tone and function.

Without an adequate blood supply, the heart becomes starved of oxygen and the vital nutrients it needs to work properly. This can cause chest pain called angina. If blood supply to a portion of the heart muscle is cut off entirely, or if the energy demands of the heart become much greater than its blood supply, a heart attack (injury to the heart muscle) may occur.

It is most commonly equated with atherosclerotic coronary artery disease, but coronary disease can be due to other causes, such as coronary vasospasm. It is possible for the stenosis to be caused by spasm.

This text uses material from Wikipedia licensed under CC BY-SA

Latest Spotlight News

Study finds possible new jet-lag treatment

Exposing people to short flashes of light while they're sleeping could provide a fast and efficient method of preventing jet lag, according to a study by researchers at the Stanford University School of Medicine.

Gut environment could reduce severity of malaria

Microorganisms in the gut could play a role in reducing the severity of malaria, according to a new study co-authored by researchers at the University of Tennessee, Knoxville, and the University of Louisville.

Timebomb in the testicles investigated

Oxford scientists have for the first time been able to identify the origins of some severe disease-causing mutations within the testicles of healthy men. This discovery will help our understanding of how certain serious genetic ...

Study examines evolution of cancer

A novel Yale study answers age-old questions about how cancers spread by applying tools from evolutionary biology. The new insights will help scientists better understand the genetic origins of tumor metastases, and lead ...

Sleep deprivation linked to false confessions

Sleep-deprived people are much more likely to sign false confessions than rested individuals, according to a groundbreaking study that has important implications for police interrogation practices.