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Second stage duration and delivery outcomes among women laboring after cesarean with no prior vaginal delivery.

Authors
  • Levin, Gabriel1, 2
  • Tsur, Abraham3, 4, 5
  • Tenenbaum, Lee4
  • Mor, Nizan4
  • Zamir, Michal4
  • Meyer, Raanan3, 4, 6
  • 1 The Department of Obstetrics and Gynecology, Hadassah Medical Center, Jerusalem, Israel. , (Israel)
  • 2 The Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel. , (Israel)
  • 3 The Department of Obstetrics and Gynecology, The Chaim Sheba Medical Center, Tel Hashomer, Israel. , (Israel)
  • 4 School of Medicine, Tel Aviv University, Tel Aviv, Israel. , (Israel)
  • 5 The Gertner Institute for Epidemiology and Health Policy, Tel HaShomer, Israel. , (Israel)
  • 6 The Dr. Pinchas Bornstein Talpiot Medical Leadership Program, Sheba Medical Center, Tel Hashomer, Ramat-Gan, Israel. , (Israel)
Type
Published Article
Journal
Birth (Berkeley, Calif.)
Publication Date
Dec 01, 2023
Volume
50
Issue
4
Pages
838–846
Identifiers
DOI: 10.1111/birt.12734
PMID: 37367697
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

We aimed to evaluate the association of the duration of the second stage with labor after cesarean (LAC) success and other outcomes among women with one prior cesarean delivery (CD) and no prior vaginal births. All women undergoing LAC that reached the second stage of labor from March 2011 to March 2020 were included in this retrospective cohort study. The primary outcome was the mode of delivery by second stage duration. The secondary outcomes included adverse maternal and neonatal outcomes. We allocated the study cohort into five groups of second stage duration. Further analysis compared <3 to ≥3 h of second stage based on prior studies. LAC success rates were compared. Composite maternal outcome was defined as the presence of uterine rupture/dehiscence, postpartum hemorrhage, or intrapartum/postpartum fever. One thousand three hundred ninety seven deliveries were included. Vaginal birth after cesarean (VBAC) rates decreased as the second stage length time interval increased: 96.4% at <1 h, 94.9% at 1 to <2 h, 94.6% at 2 to <3 h, 92.1% at 3 to <4 h and 79.5% at ≥4 h (p < 0.001). Operative vaginal and CDs were significantly more likely as second stage duration time interval increased (p < 0.001). The composite maternal outcome was comparable among groups (p = 0.226). When comparing the outcomes of deliveries at <3 h versus ≥3 h, the composite maternal outcome and neonatal seizure rates were lower in the <3 h group (p = 0.041 and p = 0.047, respectively). Vaginal birth after cesarean rates decreased as second stage time interval length increased. Even with prolonged second stage, VBAC rates remained relatively high. Increased risk of composite adverse maternal outcomes and neonatal seizures were observed when the second stage lasted 3 h or more. © 2023 The Authors. Birth published by Wiley Periodicals LLC.

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