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1988年1月～1992年1月,在本院分娩者7078例,其中过期妊娠245例,并发羊水过少63例,占25.71%。采用 B 超测定羊水量,NST 及 OCT 监测胎盘功能,作为诊断羊水过少的参考指标。结果表明,B 超羊水平段≤3cm 可诊断为羊水过少;B超羊水平段>3cm,≤4cm 及未作 B 超者,如 NST 阴性或 OCT 阳性则高度提示并发羊水过少。过期妊娠一旦有上述情况时,应及时剖宫产,可极大地降低围产儿患病率及死亡率。
From January 1988 to January 1992, 7078 cases were delivered in our hospital, of which 245 cases were expired, 63 cases were complicated with oligohydramnios, accounting for 25.71%. Amniotic fluid volume measured by B ultrasound, NST and OCT monitoring of placental function as a reference indicator for the diagnosis of oligohydramnios. The results showed that the level of B super-sheep less than 3cm can be diagnosed as oligohydramnios; B super-sheep level> 3cm, ≤ 4cm and did not make B-over, such as NST negative or OCT positive is highly suggestive of oligohydramnios. Expired pregnancy once the above circumstances, cesarean section should be promptly, can greatly reduce the prevalence of perinatal and mortality.