Allahbadia G N, Vaidya P R
Department of Obstetrics and Gynaecology, LTMM College and LTMG Hospital, Sion, Bombay.
J Indian Med Assoc. 1993 Jan;91(1):13-6.
The study was conducted on 200 normal pregnant women who were randomly classified into 2 groups of 100 cases each. The control group comprised mothers in supine position throughout labour and delivery (46 primigravidae and 54 multigravidae). The squatting group consisted of cases who were kept ambulatory during the 1st stage and were asked to squat on ordinary delivery cots during the 2nd stage of labour. Third stage of labour was conducted in supine position. The squatting group comprised 42 primigravidae and 58 multigravidae. There was a mean difference (shortening) of 3 hours in primigravidae and 2 hours in multigravidae in the duration of 1st stage of labour between the squatting and control groups. In the duration of 2nd stage of labour the mean differences in primigravidae and multigravidae of the squatting and control groups were 20 and 13.5 minutes respectively. In the squatting group there were 79 normal vaginal delivery, 16 forceps delivery and 5 caesarean sections whereas in the control group there were 80, 18 and 2 cases respectively. Although foetal complications were comparable in both the groups, the incidence of maternal injuries was observed in 14 cases in control group and 38 cases in squatting group. It was concluded that without proper birthing chairs which can give good perineal support, the usual supine position is preferable.
该研究针对200名正常孕妇展开，她们被随机分为两组，每组100例。对照组包括整个分娩过程中均采取仰卧位的产妇（初产妇46例，经产妇54例）。蹲位组包括在第一产程中保持走动、在第二产程中被要求在普通产床上蹲坐的产妇。第三产程采取仰卧位。蹲位组包括初产妇42例，经产妇58例。蹲位组与对照组相比，初产妇第一产程时长平均缩短3小时，经产妇缩短2小时。在第二产程时长方面，蹲位组与对照组的初产妇和经产妇平均差异分别为20分钟和13.5分钟。蹲位组有79例顺产、16例产钳助产和5例剖宫产，而对照组分别有80例、18例和2例。尽管两组胎儿并发症情况相当，但对照组有14例产妇出现损伤，蹲位组有38例。研究得出结论，在没有能提供良好会阴支撑的合适分娩椅的情况下，通常的仰卧位更可取。
