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臀位是常见的异常胎位之一,围产儿死亡率一般比头位高4倍.不少人主张以剖宫产来降低围产期发病率和死亡率,取得了明显效果。因而剖宫产在臀位分娩中日渐增多.我院自1982～1987年分娩总数为1698例,臀位57例占3.36%剖宫产总数为241例,占分娩总数1698例的14.19%.同期剖宫产241例.臀位剖宫产23例9.54%.占臀位分娩总数57例的40.35%.比刘连奎氏80年代组臀位剖宫产率62.0%为低,比浙江医科大学80年代初22.5%为高.从王佩贞氏撰写的近年来臀位分娩情况表来看臀位剖宫产有逐年增加的趋势. 臀位分娩是异常分娩,异常分娩就意味着对母体损伤的机会多,对胎儿损伤或围产儿死亡率高的可能性大.正常分娩称谓顺产,是胎头大径、胎头大周经作先导进入骨盆入口平面再进入产道扩张软产道;11.3cm的枕额径周径33cm,约11～12cm的肩宽周径35cm(软组织有较大的可塑性).9cm的臀宽周经27cm顺序娩出.其一,臀位分娩虽然是纵式胎位,但是先臀、肩、头与头先露头、肩臀顺产相反的方式分娩,它不但不是顺产,我们也可以称它为“逆产”,“逆产”不一定发
Breech bit is one of the common abnormal fetal position, the perinatal mortality rate generally 4 times higher than the head position.Many people advocate cesarean section to reduce perinatal morbidity and mortality, and achieved significant results. So cesarean section in breech delivery increasing.Our hospital from 1982 to 1987, the total number of deliveries for the 1698 cases, breech 57 cases accounted for 3.36% of the total number of cesarean section 241 cases, accounting for 14.19% of the total delivery of 1698 cases. Cesarean section in 241 cases, breech cesarean section in 23 cases, 9.54%, accounting for 40.35% of total breech delivery in 57 cases, which was lower than that in Liu Lianqu’s 1980s group, with a rate of 62.0%, which was lower than that of Zhejiang Medical University in the 1980s The beginning of 22.5% as high.From Wang Pei-Zhen’s recent years breech delivery table to see breech crescent has a trend of increasing year by year.Bus breech delivery is abnormal delivery, abnormal delivery means more chance of maternal injury, The possibility of fetal injury or high perinatal mortality is high. The normal delivery of obstetric delivery, is the fetal head large diameter, the fetal head large week as a guide to enter the pelvic entrance plane and then enter the birth canal expansion soft birth canal; 11.3cm Diameter 33cm, about 11 ~ 12cm shoulder width 35cm (soft tissue greater plasticity.) 9cm of the hip width week after delivery of 27cm. First, although the breech birth vertical fetal position, but the first hip, shoulder, Head and head first outcrop, shoulder and hip birth in the opposite way of childbirth, it is not only not a natural birth, we can also call it “Reverse production”, “reverse production” does not necessarily hair