Patients will be eligible for inclusion if diagnosed with PPCM after January 1, 1994. Patients must be above the age of 18 years old with no prior cardiac history and no history of chronic drug or alcohol abuse. Diagnosis of PPCM must have been made prior after the 28th week of gestation and up to 6 months postpartum. Patients must have echocardiographic data confirming left ventricular systolic dysfunction by either depressed shortening fraction or depressed ejection fraction.