Coronary Artery DiseaseComparison of 1, 2, and 6-Month Readmission Rates in Patients With Acute Myocardial Infarction Directly Admitted to Hospital Versus Transferred From Another Hospital to an Academic Medical Center

Patients with acute myocardial infarction (AMI) who are transferred are less likely than directly admitted patients to receive outpatient follow-up within 30 days and are more likely to be readmitted. In 2015, we launched a clinic where post-AMI patients (direct admits and transfers) are seen within 1 week of hospital discharge. We compared short- and long-term clinical outcomes of patients who were transferred to patients who were directly admitted to our institution to determine the impact of transfer status on early outpatient follow-up and clinical outcomes. A total of 280 post-AMI patients, 193 direct admissions (69%), and 87 transfers (31%) were referred to the clinic. Clinic attendance was similar between the transferred and the directly admitted patients (91% vs 92%, p = 0.688, respectively). Transferred patients had similar rates of confusion regarding their medical regimen as the directly admitted patients (11% vs 8%, p = 0.393). Compared with directly admitted patients, transferred patients lived farther from the hospital (median distance of 30 vs 48 miles, p <0.0001), were predominately white (77% vs 91%, p = 0.005), and had higher rates of chronic obstructive pulmonary disease (9% vs 17%, p = 0.014). There was no difference in 30- (16% vs 13%, p = 0.562) or 60-day readmission rates (6% vs 8%, p = 0.543) between transferred patients and directly admitted patients. At 6 months, mortality rates were similar (6% vs 4%, p = 0.556). In conclusion, transferred patients who were evaluated early after hospital discharge for acute MI had similar clinical outcomes (including rates of unplanned readmissions) to their directly admitted counterparts.