Heinberg Eric M, Wood Robert A, Chambers Richard B
Departments of Obstetrics and Gynecology, Ochsner Clinic, Alton Ochsner Medical Foundation, New Orleans, Louisiana, USA.
J Reprod Med. 2002 May;47(5):399-403.
To determine whether the medical initiation of labor places the multiparous woman at increased risk of cesarean section.
This study was a retrospective, case-control assessment of the risk of cesarean section in multiparas with no medical or obstetric complications and vertex presentations whose induction of labor at term was judged to be elective by chart analysis. Case women were matched for age, parity, gestational age and staff obstetrician with controls in spontaneous labor, and the rates of cesarean delivery were compared.
Three hundred four case-control pairs were studied. No significant difference was observed in the rate of cesarean delivery between the two groups. The rate of cesarean section in the electively induced group was 3.6% versus 4.3% in the control group (P = .6670). Neither cervical state nor use of cervical ripening agents significantly affected the rate of cesarean delivery.
As compared with spontaneous labor, the elective induction of labor in multiparous women without complications does not predispose to cesarean delivery.
确定医学引产是否会使经产妇剖宫产风险增加。
本研究是一项回顾性病例对照评估，针对无医学或产科并发症且为头先露的经产妇，通过病历分析判定其足月引产为选择性引产。病例组女性在年龄、产次、孕周和产科医生方面与自然分娩的对照组进行匹配，比较剖宫产率。
研究了304对病例对照。两组间剖宫产率无显著差异。选择性引产组的剖宫产率为3.6%，而对照组为4.3%（P = 0.6670）。宫颈状态和宫颈成熟剂的使用均未显著影响剖宫产率。
与自然分娩相比，无并发症的经产妇选择性引产不会增加剖宫产的倾向。
