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例一,27岁、三胎产,于1983年6月27日因妊娠38 6/7周持续性横位入院待产。在停经40~+天及孕4~+月时曾有少量阴道流血,经用黄体酮保胎血即止,此后未再出血,孕6~+月时产前检查发现横位,经多次转胎未成功。1981年、1982年曾因早期先兆流产而行刮宫术二次。妇检:宫底在耻上35cm,腹围110cm,胎位左肩前位、胎心率140次,骨盆外测量各径线正常。X线摄片先露系手足小肢体。为防临产中脐带脱垂,在孕39周时作选择性剖腹产术,术中见子宫下段饱满,软,呈紫蓝色,血管怒张,切开宫壁血即涌出,切口下为胎盘组织,切开胎盘即
Example 1, 27 years old, three births, on June 27, 1983 due to 38 6/7 weeks of pregnancy continuous horizontal admission to be produced. In menopause 40 ~ + days and pregnancy 4 ~ + month had a small amount of vaginal bleeding, vaginal bleeding by progesterone, then no further bleeding, pregnant 6 ~ + month prenatal examination found transverse position, after repeated Tire is not successful. 1981, 1982, had a result of early threatened abortion curettage twice. Maternity: palace at the ashamed 35cm, abdominal circumference 110cm, fetal left anterior shoulder, fetal heart rate 140 times, the normal measurement of the radial line of the pelvis. X-ray film first exposed limbs limbs. To prevent the prolapse of umbilical cord prolapse, at 39 weeks of pregnancy for selective caesarean section, the surgery see the lower uterine segment full, soft, purple-blue, vascular engorgement, dissection of the uterine wall blood that is, under the incision for the placenta Tissue, cut the placenta that is