Impact of Pregnancy on Ventricular Strain in Women with Repaired Tetralogy of Fallot

Valeria E. Duarte, Julia A. Graf, Kimberlee Gauvreau, Sarah Rae Easter, Sheila C. Drakeley, Matthew R. Carazo, Katherine E. Economy, Anne Marie Valente, David M. Harrild

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Increasing numbers of women with repaired tetralogy of Fallot (rTOF) are reaching reproductive age and seek counseling regarding their cardiovascular risks related to pregnancy. Therefore, the aim of this study was to characterize changes in left ventricular (LV) strain in women with rTOF during pregnancy and in the postpartum period. Seventeen pregnancies in women with rTOF were included (mean age at repair = 3.2 years ± 5.5 years; mean age at delivery = 32.7 ± 4 years). Echocardiograms from three time periods were analyzed; baseline (prior to conception or in the first trimester), third trimester, and 4–6 weeks postpartum. Sixty-five percent of the patients had at least mild pulmonary regurgitation. Eight patients (47%) had undergone at least one pulmonary valve replacement. There were no changes in LV ejection fraction (EF) or circumferential strain across the three time periods. Significant differences were present in longitudinal strain within the three time points (p = 0.01). Postpartum strain decreased in magnitude compared to the third trimester value (− 17.7 ± 4.1 vs. − 21 ± 5, p-value = 0.003) but was not different when compared to baseline strain (− 17.7 ± 4.1 vs. − 19.4 ± 3.4; p-value = 0.15). In conclusion, in women with rTOF, changes in longitudinal strain were observed during pregnancy with a return to baseline after delivery; EF did not change. These findings provide evidence that pregnancy does not adversely impact LV mechanics in the short term in this potentially vulnerable patient population.

Original languageEnglish (US)
Pages (from-to)1795-1799
Number of pages5
JournalPediatric Cardiology
Volume41
Issue number8
DOIs
StatePublished - Dec 2020

Keywords

  • Echocardiography
  • Myocardial strain
  • Pregnancy
  • Tetralogy of fallot

ASJC Scopus subject areas

  • Pediatrics, Perinatology, and Child Health
  • Cardiology and Cardiovascular Medicine

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