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REVIEW
Minerva Obstetrics and Gynecology 2021 February;73(1):111-20
DOI: 10.23736/S2724-606X.20.04518-9
Copyright © 2020 EDIZIONI MINERVA MEDICA
language: English
Efficacy of physical examination-indicated cerclage in twin pregnancies compared with singleton pregnancies: a systematic review and meta-analysis
Chunbo LI, Keqin HUA ✉
Department of Obstetrics and Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
INTRODUCTION: To compare the pregnancy outcomes of physical examination-indicated cerclage (PEIC) between twin and singleton pregnancies with acute cervical insufficiency.
EVIDENCE ACQUISITION: We searched Medline, Ovid, Scopus, EBSCO, ClinicalTrials.gov and the Cochrane Central Register of Controlled Trials from their commencement until Dec 2019 for relevant studies. Patient-level data abstraction and analysis were done by two independent authors.
EVIDENCE SYNTHESIS: A total of five studies with 786 women were included in the final analysis. The pooled outcomes showed that PEIC was associated with a similar reduction in preterm birth (PTB) at <32 (Risk ratio [RR] 0.93, 95% CI 0.79-1.11, I2=0%, P=0.43), and 28 (RR 1.03, 95% CI 0.82-1.29, I2=0%, P=0.81) weeks of gestation; however, a much higher frequency of PTB was observed at <36 (RR 0.74, 95% CI 0.66-0.83, I2=0%, P<0.000), and 34 (RR 0.80, 95% CI 0.68-0.93, I2=0%, P=0.004) weeks of gestation in twin pregnancies than in singleton pregnancies. No significant differences in perinatal outcomes, including neonatal death (RR 1.03, 95% CI 0.64-1.67, I2=52%, P=0.900), stillbirth (RR 0.73, 95% CI 0.37-1.44, I2=0%, P=0.360), perinatal mortality (RR 0.94, 95% CI 0.65-1.38, P=0.760) and neonatal complications were found between twin and singleton pregnancies.
CONCLUSIONS: Our meta-analysis indicated that PEIC achieved good perinatal prognosis in both singleton and twin pregnancies. However, because the available evidence is insufficient to attain a strong conclusion, so further high-quality trials are needed to confirm our findings.
KEY WORDS: Uterine cervical incompetence; Cerclage, cervical; Pregnancy, twin; Meta-analysis