Cardiac Magnetic Resonance Reveals High Prevalence of Unrecognized MI in Older Adults

Mortality risk is elevated in patients with unrecognized MI detected by CMR, but routine use of the test for screening is untenable.

The prevalence of unrecognized myocardial infarction (MI) may be considerably higher than documented in epidemiologic studies based on electrocardiography (ECG). Investigators sought to determine the prevalence and mortality risk of unrecognized MI as detected by cardiac magnetic resonance (CMR) versus ECG in a subset of participants in the AGES-Reykjavik Study, a randomly selected, population-based cohort of older adults (aged 67–93) in Iceland.

Between January 2004 and January 2007, 936 participants (median age, 76; 52% women) underwent both ECG and CMR. Ninety-one participants had recognized MI, and 688 had no MI detectable by either CMR or ECG. Of 157 individuals with unrecognized MI by CMR, 138 exhibited no MI by ECG; and of 46 individu…

Reviewing Author

Joel M. Gore, MD

Disclosures

Grant/Research SupportNIH–National Heart, Lung, and Blood Institute

Joel M. Gore, MD

Disclosures

Grant/Research SupportNIH–National Heart, Lung, and Blood Institute

Cardiac Magnetic Resonance Reveals High Prevalence of Unrecognized MI in Older Adults

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Reviewing Author