改变产妇体位矫正胎儿方位的临床效果

Correction of Occipital-Posterior Position by Maternal Posture

目的:探讨产程中改变产妇体位以矫正胎位。方法:选择临产至宫口开全经B超及内诊检查为枕后位的初产妇200例,随机分为观察组与对照组各100例,在产程中指导观察组产妇取侧俯卧位,利用胎儿重力、羊水浮力、子宫间歇性收缩的合力作用,使胎头下降时逐渐从枕后位转至枕前位娩出,并与对照组比较。结果:观察组91例(91％)胎儿由枕后位转至枕前位经阴道分娩,剖宫产9例(9％);对照组经阴道分娩仅16例(16％),剖宫产84例(84％)。两组比较差异有显著性(P<0.01)。结论:在产程中指导产妇取侧俯卧位,用以矫正胎位不正是降低难产发生率的有效方法。

Objective: To investigate the effect on correction of occipital - posterior( OP) presentation by changing maternal posture during labor. Methods: 200 pregnant women were randomly devided into 2 groups. A prospective study was conducted in 120 pregnant women. Women in labor were instructed to take the lateral posture so that the resultant force of the gravity of fetus, the buoyancy of amniotic fluid, and the intermittent uterine contraction may change the fetal position from Occipital-Posterior to occipital - anterior(OA) presentation. Another 120 women were selected as controls. Results; In the study group, 91 women(91%) delivered cesarean section. In the control group,only 16 women(16%) delivered vaginally, and 84 women(84% ) had cesarean section. There was significant difference between two groups(P<0. 01). Conclusion-. It is an effective method for the mother to take the lateral posture on the opposing side of fetal spine to correct the OP position. The incidence of dystocia and the cesarean section rate may be reduced.