Undiagnosed MI behind 40% of sudden cardiac deaths

Many patients had abnormal ECGs, study shows
Heart failure

Almost half of sudden cardiac deaths can be attributed to a previously undiagnosed, or ‘silent’, myocardial infarction, a Finnish study has found.

The findings, published in JAMA Cardiology, also suggest that some of these deaths could have been prevented based on pre-mortem ECG readings, the researchers say.