Key result
Mechanical circulatory support in severe PPCM is linked to ~89% survival, often bridging to transplant.
Why the study?
Peripartum cardiomyopathy is a severe pregnancy complication marked by nonischemic reduction in LVEF, and outcomes among women requiring mechanical circulatory support for end-stage heart failure needed evaluation.
Does mechanical circulatory support improve survival and serve as an effective bridge to transplant or recovery in women with cardiogenic shock secondary to peripartum cardiomyopathy?
Observational (n=28)
Does mechanical circulatory support improve survival and serve as an effective bridge to transplant or recovery in women with cardiogenic shock secondary to peripartum cardiomyopathy?
Mechanical circulatory support is an effective bridging strategy for severe peripartum cardiomyopathy complicated by cardiogenic shock, yielding an 89% survival to discharge rate.
May support MCS bridging in peripartum cardiomyopathy shock; hypothesis-generating and requires prospective validation.
Background: Peripartum cardiomyopathy (PPCM) is a severe complication of pregnancy hallmarked by nonischemic reduction in left ventricular ejection fraction to <45% late in gestation or shortly postpartum. This study evaluated outcomes among women who required mechanical circulatory support (MCS) for end-stage heart failure in the setting of PPCM. Methods: Thirty female patients 18-46 years of age underwent advanced heart failure surgical procedures for PPCM between 2012 and 2020. Primary heart transplant patients (n = 2) were excluded. PPCM patients with a new MCS requirement (n = 28) were classified by device type and escalations in device support. Results: Nineteen (68%) patients required temporary MCS: 12 (63%) intraaortic balloon pump, 9 (47%) venous-arterial extracorporeal membrane oxygenation, and 4 (21%) Impella heart pump (AbioMed Inc). Nine (32%) patients underwent left ventricular assist device implantation immediately after failure of medical therapy. Among temporary MCS recipients, 5 (26%) required escalations with additional modalities. Ten (53%) patients were bridged to durable left ventricular assist devices. Ejection fraction at MCS insertion was 14% ± 5% and progressed to 24% ± 16% postinsertion and 29% ± 17% 1 year after surgery. Complications included dialysis requirement (n = 5), right ventricular failure (n = 4), cardiac arrest (n = 3), and stroke (n = 2). Survival to discharge was 89% (n = 25). Twelve patients underwent transplant (43%), and 2 (7%) recovered native heart function. Conclusions: Severe PPCM can be effectively managed with MCS as a bridging strategy to either transplant or durable left ventricular assist device. Patients will often require multiple escalations in resource-intensive therapy, but outcomes are excellent with vigilant management.
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Florea et al. (2024) conducted an observational in Peripartum cardiomyopathy (n=28). Mechanical circulatory support was evaluated on Survival to discharge. Mechanical circulatory support for severe peripartum cardiomyopathy resulted in an 89% survival to discharge rate, with 43% undergoing heart transplant and 7% recovering native heart function.
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