Peripartum Cardiomyopathy and Preeclampsia: Overlapping Diseases of Pregnancy.

PURPOSE OF REVIEW: Hypertensive disorders of pregnancy (HDP) often result in cardiac dysfunction and have been variably included as a risk factor for peripartum cardiomyopathy (PPCM). However, there is debate regarding the relationship between the two entities.

RECENT FINDINGS: Diastolic dysfunction appears to be more predominant among gravidas with HDP, while systolic dysfunction predominates in PPCM. However, this finding is not consistent in all studies. Recent examinations of mortality and morbidity associated with PPCM in the setting of HDP do not demonstrate a predominant pattern with a mixture of results. Further, right ventricular dysfunction is identified to be a common theme in both populations. From a basic science perspective, there is evidence to demonstrate a predominantly anti-angiogenic milieu in both PPCM and HDP. PPCM and HDP associated cardiomyopathy overlap significantly. As such, unifying theories for their pathophysiology should be investigated.