摘要
目的探讨非仰卧位分娩与仰卧位分娩对产程及分娩结局的影响。方法纳入2013年1月至2014年3月于河北医科大学第四医院产科分娩的足月、单胎、初产孕妇,第二产程自愿选择手膝俯卧位(n=116)或侧卧位(n=204)分娩的320例作为非仰卧位组,选择仰卧位分娩的322例作为仰卧位组,观察产程及分娩结局。采用t检验、秩和检验及x^2检验进行统计学分析。结果非仰卧位组第二产程中转剖宫产的比例与仰卧位组差异无统计学意义[0.9%(3/320)与1.9%(6/322),x^2=0.438,P=0.508]。与仰卧位组相比,非仰卧位组经阴道分娩者会阴Ⅰ度裂伤发生率较高[85.2%(270/317)与65.2%(206/316),x^2=33.884],第二产程时间较长[48.0min(31.0~78.0min)与41.0min(25.0~67.3min),Z=-3.066],产后2h出血量也较多[240.0ml(200.0-287.5ml)与210.0ml(160.0~260.0m1),Z=-3.736],但会阴侧切[5.3%(17/317)与23.4%(74/316),x^2=41.908]、会阴水肿[13.6%(43/317)与21.2%(67/316),x^2=6.430]及羊水粪染的发生率[20.8%(66/317)与33.2%(105/316),x^2=12.356]均较低(P值均〈0.05)。非仰卧位组第二产程胎心早期减速、变异减速、晚期减速发生率分别为10.1%(32/317)、2.8%(9/317)和3.2%(10/317),均低于仰卧位组[分别为17.1%(54/316)、6.6%(21/316)和7.6%(24/316),矿值分别为6.593、5.079和6.139,P值均〈0.05]。结论第二产程采用非仰卧位分娩有助于改善分娩结局。
Objective To evaluate the effects of the non-supine position and the supine position during the second stage of labor on delivery outcomes. Methods In total, 642 singleton term primiparas in the Fourth Hospital of Hebei Medical University between January 2013 and March 2014 were divided into the non-supine position group ( n=320 ) , which included the lateral ( n=204 ) and hands-and-knees position ( n=116 ) , and the supine position group ( n=322 ) according to primipara's choice. Delivery outcomes in the two groups were compared using the Student's t test, Mann-Whitney rank sum test and the x^2 test. Results The incidence of caesarean section was similar in the non-supine position and supine position groups [0.9% ( 3/320 ) vs 1.9% ( 6/322 ) x^2=0.438, P=0.508]. Compared with the supine position group, women in the nonsupine position group had a higher incidence of perineal lacerations grede Ⅰ [85.2% ( 270/317 ) vs 65.2% ( 206/316 ) , x^2=33.884], longer duration of the second stage of labor [48.0 min ( 31.0-78.0 min ) vs 41.0 min ( 25.0-67.3 min ) , Z= - 3.066] and greater blood loss after 2 hours of labor [240.0 ml ( 200.0-287.5 ml ) vs 210.0 ml ( 160.0-260.0 ml ) , Z= - 3.736], but a significant reduction in posterolateral episiotomies [5.3% (17/317) vs 23.4% (74/316) , x^2=41.908], perineal edema [13.6% (43/317) vs 21.2% (67/316) , x^2=6.430] and meconiumstained liquor [20.8% ( 66/317 ) vs 33.2% ( 105/316 ) , x^2=12.356] ( all P〈0.05 ) . In the non-supine position group, fetal heart rate showed fewer early decelerations, variable decelerations and late decelerations than in the supine position group [ 10.1% ( 32/317 ) vs 17.1% ( 54/316 ), x^2=6.593; 2.8 % ( 9/317 ) vs 6.6% ( 21/316 ) , x^2=5.079; 3.2% ( 10/317 ) vs 7.6% ( 24/316 ) , 3(2=6.139; all P〈0.05, respectively]. Conclusions The non-supine position during the second stage of labor may improve delivery outcomes.
出处
《中华围产医学杂志》
CAS
北大核心
2014年第11期743-747,共5页
Chinese Journal of Perinatal Medicine
基金
河北省科技支撑计划项目(122777149)
关键词
产程
第二
自然分娩
体位
预后
Labor stage, second
Natural childbirth
Posture
Prognosis