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Obstet Gynecol:古典式剖宫产在双胎中的发生率

2015-03-10 Mechront MedSci原创

近期Sarah S.等人对一项队列研究进行了再次分析,以探究双胎在不同孕周其古典式剖宫产术的发生率,以及增加其发生的危险因素。该研究纳入了1999-2002年间23-41+6周孕的双胎孕妇,记录其剖宫产方式、分娩孕周和新生儿体重。运用多因素回归分析探究孕妇年龄、BMI、肥胖、初产、顺产、前次剖宫产、急产、胎先露等对剖宫产类型选择的影响。最新研究成功发表在近期Obstet Gynecol,证据等级为

近期Sarah S.等人对一项队列研究进行了再次分析,以探究双胎在不同孕周其古典式剖宫产术的发生率,以及增加其发生的危险因素。该研究纳入了1999-2002年间23-41+6周孕的双胎孕妇,记录其剖宫产方式、分娩孕周和新生儿体重。运用多因素回归分析探究孕妇年龄、BMI、肥胖、初产、顺产、前次剖宫产、急产、胎先露等对剖宫产类型选择的影响。最新研究成功发表在近期Obstet Gynecol,证据等级为II级。

研究结果显示,纳入的1820名双胎孕妇中,有125名(7%)孕妇实行了古典式剖宫产术,在25周孕(41%)时,古典式剖宫产的比例最高,之后随孕周增大,其发生率减小。孕周增加对古典式剖宫产选择的影响:OR=0.8795% CI 0.78-0.98。在对其影响剖宫产类型选择的因素分析得出,非籍美国人和急产与32周及其以后古典式剖宫产术发生率密切相关。

该研究结果表明,双胎孕妇实施剖宫产时,古典式剖宫产术的发生率与孕周成反比,孕周越小,古典式剖宫产发生率越高,但数据表明,最高也没有超过50%。同时研究指出,非籍美国人和急产是32周孕及其以后古典式剖宫产术发生的危险因素。

(古典式剖宫产:子宫体部剖宫产。切口在子宫体部,为直切口,操作简单,无损伤子宫动静脉危险。但术中出血多。术后伤口愈合较差;切口易与大网膜。肠管。腹壁粘连,术后肠胀气。肠麻痹也较易发生;再次分娩时较易发生子宫破裂,故多已被子宫下段剖宫产所代替。其适应证仅用于子宫下段前壁前置胎盘。下段窄或形成不好。或第二次剖宫产粘连严重者。)

原始出处:

Sarah S. Osmundson,et al. Risk Factors for Classical Hysterotomy in Twin Pregnancies. Obstet Gynecol 2015;125:643–8

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