Silent myocardial infarction predicts ischemic stroke, say researchers

Silent myocardial infarction (MI) is an independent risk factor for ischemic stroke, a new analysis shows.

“Clinically apparent MI is an established risk factor for cardiac embolism and subsequent ischemic stroke,” said Dr Alexander Merkler of Weill Cornell Medical Center in New York, New York, USA. “And we know that silent MI is not benign: it is a risk factor for clinically apparent MI, heart failure, and death.” Whether silent MI is a risk factor for ischemic stroke was uncertain.

Using data from the Cardiovascular Health Study, a longitudinal cohort study of people aged ≥65 years, Dr Merkler and colleagues analyzed the relationship between silent MI and ischemic stroke.