Should erectile dysfunction be considered as a marker for acute myocardial infarction? Results from a retrospective cohort study.

The association between erectile dysfunction (ED) and acute myocardial infarction (AMI) among men was examined in the Integrated Healthcare Information Services National Managed Care Benchmark Database (IHCIS). The IHCIS is a fully de-identified, HIPAA-compliant database and includes complete medical history for more than 17 million managed care lives; data from more than 30 US health plans, covering seven census regions; and patient demographics, including morbidity, age and gender. A total of 12,825 ED patients and an equal number of male patients without ED were included in the retrospective cohort study. Logistic regression analyses were performed to assess the adjusted risk of AMI that accounted for age at ED diagnosis, smoking, obesity and medications including ACE inhibitors, beta blockers and statins. The cohort of men with ED were observed to have a two-fold increase in the risk for AMI (OR=1.99, 95% CI=1.17, 3.38) after adjusting for age at ED diagnosis, smoking, obesity, and use of ACE inhibitors, beta blockers and statins. Some evidence of a possible trend toward increased risk was detected by age group. After controlling for the aforementioned covariates and compared to men 30-39 y of age, it was noted that patients 40-44 y of age were 3.8 times more likely to develop an AMI (OR=3.76, 95% CI=1.21, 11.7), 45- to 49-y-old men were also more than three times as likely to have an AMI (OR=3.14, 95% CI=1.03, 9.64), and 50- to 55-y-old patients had a four-fold increased risk of developing AMI (OR=4.04, 95% CI=1.39, 11.7). The risk becomes more pronounced with increasing age, indicating the need for cardiologists and internists to monitor ED patients who may not necessarily present with cardiovascular symptoms.