acute coronary syndrome

My dad passed away last May. It was quite a big shocked for all of us in the family. My dad looked healthy days and months before he passed away. He even looked in a pink of health the minute before he passed away. He had body check-up a month before this tragedy happened. The doctor had had him transferred to Muar Hospital for further check-up. He didn't manage to get in the queue. How impatient he was...

the post-mortem indicate that my dad died of acute coronary syndrome.

acute coronary syndrome is another term for acute myocardial ischemia. Acute myocardial ischemia is chest pain due to insufficient blood supply to the heart muscle that results from coronary artery disease (CAD). Whereas CAD happens when the arteries that supply blood to the heart muscle (coronary arteries) become hardened and narrowed. The arteries harden and narrow due to buildup of plaque in the inner wall. Thus, less blood will be able to flow through. Eventually, blood flow to heart muscle is reduced. Blood that flow into the heart carries oxygen. Less blood flow, less oxygen supply.

this is the picture showing the cross section of coronary artery where plaque has buildup

Gary told me that acute coronary syndrome is unpredictable, so there's no way to avoid it.