Late preterm and early term: when to induce a growth restricted fetus? A population-based study

Alex Rabinovich, Tehila Tsemach, Lena Novack, Moshe Mazor, Tal Rafaeli-Yehudai, Orna Staretz-Chacham, Ruth Beer-Weisel, Vered Klaitman-Mayer, Salvatore A. Mastrolia, Offer Erez

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


Purpose: (1) Compare fetal and neonatal morbidity and mortality associated with induction of labor (IOL) versus expectant management (EM) in women with isolated fetal growth restriction (FGR) between 340/7 and 386/7 weeks; (2) Determine optimal gestational age for delivery of such fetuses. Materials and methods: A retrospective population based cohort study of 2232 parturients with isolated FGR, including two groups: (1) IOL (n = 1428); 2) EM (n = 804). Results: IOL group had a lower stillbirth and neonatal death rates (p =.042, p <.001), higher 1 and 5 min Apgar scores and a higher vaginal delivery rate compared to the EM group. In the late preterm period, EM was associated with increased rate of low 1 and 5 min Apgar scores, nonreassuring fetal heart rate tracing (NRFHR), stillbirth and neonatal death rate (p =.001, p =.039). In the early term cohort, EM was associated with a higher rate of NRFHR and low 1 min Apgar scores (p =.003, p =.002). IOL at 37 weeks protected from stillbirth but not from adverse composite neonatal outcomes. Conclusions: IOL of FGR fetuses at 37 weeks had a protective effect against stillbirth. In addition, at late preterm, it is associated with lower rates of stillbirth, neonatal death, and NRFHR.

Original languageEnglish
Pages (from-to)926-932
Number of pages7
JournalJournal of Maternal-Fetal and Neonatal Medicine
Issue number7
StatePublished - 3 Apr 2018


  • Fetal growth restriction
  • early term
  • expectant management
  • induction of labor
  • late preterm
  • perinatal mortality

ASJC Scopus subject areas

  • Pediatrics, Perinatology, and Child Health
  • Obstetrics and Gynecology


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