Aetiology for Sudden Cardiac Arrest

References:
http://www.asiaone.com/Health/Fitness/Watch+Your+Body/Story/Why+young+hearts+fail.html

Some of the causes that will lead to sudden cardiac arrest.

1. Hypertrophic cardiomyopathy
2. Anomalous coronary arteries
3. Arrhythmogenic right ventricular dysplasia
4. Electrical disorders that cause irregular heartbeats, such as Brugada syndrome and long QT syndrome
5. Myocarditis

Check out today's The Straits Time. One of the causes they mention was Hypertrophic cardiomyopathy. What is this? Click http://www.asiaone.com/Health/Fitness/Watch+Your+Body/Story/Why+young+hearts+fail.html for more information.

An extract from the url:

Hypertrophic cardiomyopathy

"The thickening can occur near arteries which channel blood from the heart to the rest of the body, and this could block the blood supply, said Dr Bernard Kwok, senior consultant of the National Heart Centre's cardiology department.
The thickened heart muscles also interfere with the electrical signals transmitted by the heart, which results in an irregular heartbeat.
Most people with hypertrophic cardiomyopathy would not notice it, but strenuous exercise could exacerbate the condition. The heart could either stop beating or pound so quickly that it can no longer pump out blood. This could lead to acute heart failure and death, if emergency treatment is not given in time."

... ...

"The genetic condition might not appear at birth but the heart muscle could thicken over time, said Dr Kwok."