Abstract
Objective: To evaluate the effectiveness of transvaginal cervical cerclage in singleton pregnancies with cervical incompetence, determine the predictive factors of success and failure, and then compare elective and emergency cerclage. Study Design: This was a retrospective study of 62 patients who underwent cervical cerclage in The First Hospital of Jilin University, China, between May 2015 and January 2018. Successful group was defined as those who delivered live babies and failure group who experienced abortion or stillbirth. Results: Out of 104 patients, 62 met inclusion criteria. In 62 cases, 47 (75.8%) succeeded and 15 (24.2%) failed. In successful group, 21 (44.7%) women delivered pretermly and 26 (55.3%) termly. No severe complications occurred except cervical laceration (2, 3.23%), premature rupture of membranes (13, 20.97%). In 62 cases, 40 (64.5%) have ≤2 previous second-trimester losses and 22 (35.5%) have >2 previous second-trimester losses. No significant differences were found in neonatal outcomes. Analysis revealed that higher postoperative C-reactive protein and presence of premature rupture of membranes were the strongest predictors of cerclage failure. Among 62 cases, 48 (77.4%) were allocated in elective and 14 (22.6%) in emergency cerclage. Pregnancy prolongation was significantly more (P = 0.014) in elective group with no significant differences in premature rupture of membranes, neonatal outcomes (all P > 0.05) except Apgar score at 5 min (P = 0.042). Conclusion: Achieving 75.8% live births proves that transvaginal cervical cerclage is an effective and safe technique in prolonging the gestational age, improving the obstetric outcomes in singleton pregnancies with cervical incompetence under various cerclage indications. Postoperative C-reactive protein and premature rupture of membranes are the predictive factors related to success or failure. Elective cerclage is more effective in prolonging the pregnancy compared to emergency cerclage, no significant differences are seen regarding neonatal outcomes and complications.
Highlights
Cervical insufficiency is described as the inability of the uterine cervix to support a full-term pregnancy due to a functional or structural defect of the cervix
Achieving 75.8% live births proves that transvaginal cervical cerclage is an effective and safe technique in prolonging the gestational age, improving the obstetric outcomes in singleton pregnancies with cervical incompetence under various cerclage indications
Our results demonstrated that transvaginal cervical cerclage led to live-births with a success rate of 75.8%, term births of 55.3%, preterm birth rate of 44.7%, and failure rate of 24.2%, which is comparable with the study of Sun X et al (89.7%, 64.45%, 35.6%, and 10.3% respectively) [17]
Summary
Cervical insufficiency is described as the inability of the uterine cervix to support a full-term pregnancy due to a functional or structural defect of the cervix. The neonatal care in China had improved dramatically over the past few years [5], the survival rate of infants born before 28 weeks of gestation is
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