Madeline K Mahowald1, 2, Nivedita Basu1, Latha Subramaniam1, Ryan Scott3, Melinda B. Davis4, 5, *
1 Department of Internal Medicine, University of Michigan, Michigan, USA
2 Department of Pediatrics, University of Michigan, Michigan, USA
3 Department of Anesthesiology, University of Michigan, Michigan, USA
4 Department of Internal Medicine, Division of Cardiovascular Medicine, University of Michigan, Michigan, USA
Department of Obstetrics and Gynecology, University of Michigan, Michigan, USA
Prior studies of Peripartum Cardiomyopathy (PPCM) are limited by short-term follow-up. Contemporary long-term outcomes and change in myocardial function over time are poorly characterized.
Methods and Results:
This retrospective cohort study included women with PPCM at the University of Michigan (2000-2011), with follow-up on March 31, 2017. Subsequent pregnancies were excluded. Recovery was sustained left ventricular Ejection Fraction (EF) ≥55%. Major Adverse Events (MAE) included death, cardiac transplantation, left ventricular assist device, or inotrope-dependence. A total of 59 women were included (mean [SD] age at diagnosis, 29.5 [6.8]; 28.8% Black), with a mean follow-up of 6.3 years. Recovery occurred in 22 women (37%); of these, 8 women (36%) had delayed recovery (>12 months). All cause mortality was 20% (12/59) with median survival 4.2 years; of these, 9 women (75%) died after the first year (range 2 - 10 years). MAE occurred in 19 women (32%); of these, 11 women (42%) had MAE >12 months from time of diagnosis (range 2-20 years). Deterioration in EF by >10% from the time of diagnosis occurred in 16 women (27%). This group had worse long-term outcomes, including lower final EF (mean 25 vs 42%, p=0.010), less recovery (12 vs 46%, p=0.016), and higher rates of death (38 vs 14%, p=0.046) and MAE (56 vs 23%, p=0.016).
Women with PPCM have long-term risks of mortality, MAE, and subsequent decline in EF, even in the absence of a subsequent pregnancy. Deterioration in EF is associated with adverse events; thus, long-term management is important.
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* Address correspondence to this author at the University of Michigan, 1500 E. Medical Center Drive, Ann Arbor, Michigan, MI 48109, USA; Tel: 734-763-6003;Fax: 734-936-5256; E-mail: email@example.com