A member asked:

How serious does cad have to be to cause sca?

2 doctors weighed in across 2 answers
Dr. Payam Mehranpour answered

Specializes in Internal Medicine - Cardiology

Flow impairment: If coronary artery disease is severe enough to impair blood flow, significant ischemia may result sudden cardiac death.

Answered 3/27/2018

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Variable: The narrowing of coronary artery with rupture of a plaque and thrombosis can lead to heart attack and cardiac arrest even with moderate disease. That is why it is so important to modify your risk factors. At the same someone with severe narrowing may remain asymptomatic till they suddenly have a heart attack.

Answered 3/27/2018

4.8k views

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