Short and long-term outcome of pregnant women with preexisting dilated cardiomypathy: An NTproBNP and echocardiography-guided study

Alex Blatt*, Ran Svirski, Gil Morawsky, Nir Uriel, Ortal Neeman, Dan Sherman, Zvi Vered, Ricardo Krakover

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Background: Little is known of the outcome of pregnant patients with previously diagnosed dilated cardiomyopathy. These patients are usually firmly advised against continuation of the pregnancy. Objectives: To examine the usefulness of serial echocardiographic follow-up and plasma N-terminal pro-B type natriuretic peptide levels in the management of pregnant women with preexisting DCM. Methods: We prospectively enrolled pregnant women with DCM either known or diagnosed in the first trimester. Clinical examination and serial echocardiography studies were performed at baseline, at 30 weeks gestation, peripartum, and 3 and 18 months postpartum. Blinded NTproBNP levels were obtained at 30 weeks, at delivery and 3 months postpartum. Results: Between June 2005 and October 2006 we enrolled seven women who fulfilled the study criteria. Delivery and postpartum were complicated in 3 patients (42%): 2 with acute heart failure, which resolved conservatively, and 1 with major pulmonary embolism. The left ventricular ejection fraction was stable throughout the pregnancy (35% ± 2.8 at baseline, 33% ± 2.9 at 30 weeks) and postpartum (35% ± 2.8 at 1 day, 34% ± 3.1 at 90 days). Similar stable behavior was observed regarding left ventricular dimensions: LV end-systolic diameters 43.3 ± 2.7 mm and LV end-diastolic diameters 57.3 ± 3.3 mm at baseline compared with 44.1 ± 3.1 mm and 58.7 ± 3.1 mm postpartum, respectively. The NTproBNP levels rose significantly peripartum in all three patients with complications. Conclusions: Serial NTproBNP levels, as compared to echocardiography, may be a better clinical tool in monitoring and management of pregnant women with preexisting DCM. An early rise in NTproBNP level appears to predict the occurrence of adverse events.

Original languageEnglish
Pages (from-to)613-616
Number of pages4
JournalIsrael Medical Association Journal
Volume12
Issue number10
StatePublished - Oct 2010

Keywords

  • Echocardiography
  • N-terminal pro-b type natriuretic peptide (NTproBNP)
  • Preexisting dilated cardiomyopthy
  • Pregnancy

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