计划分娩中应用催产素与头位难产关系的探讨

Planned delivery by Oxytocin infusion in relationto cephalic dystocia.

为探讨催产素计划分娩对头位分娩的影响以及与头位难产的关系，对我院５年来头位分娩中应用催产素计划分娩（催产素组）与产程自然进展（对照组）两组头位难产发生率、最终分娩方式进行对照分析。结果表明：催产秦组３０９０例，发生头位难产５６２例，头位难产发生率１８．２％；对照组２９８２例，发生头位难产３７１例，头位难产发生率１２．４％。催产素组头位难产发生率、会阴侧切胎头吸引器助产率、剖宫产率均明显高于对照组（Ｐ＜０．００５）。资料表明：在计划分娩中，催产素用量越大、持续时间越长、次数越多头位难产发生率越高。

o investigate the effect of initiating labor by oxytocin infusion on the outcome of delivery in cephalic presentation ,the dystocia rate and finalmodes of delivery were analyzed in 3090 cases of headpresentation using oxytocin infusion and 2982 caseswith spontaneous onset of labor as control group,Theresults showed that 562 of the cases using oxytocin de-veloped cephalic dystocia,a rate of 18.2%,while37 1(12.4%)of the control group had dVstocia. Besides,cephalic dystrocia,rates of episiotomy,vacu-um extraction andcesarean secdon were allsignificantly higher in the oxytocin group than those inthe control(P<0.005),Data also showed that thehigher dosage,the more freq uency and the longer timeof pitocin infusion the higher the rate of dvstocia.