患者,女,24岁。于1994年2月20日以妊娠36~(+4)周一孕0产、头位、双胎、畸形?胎膜早破入院。查体:一般状态良好,BP14/10kPa。停药36~(+4)周,阴道水性分泌物12小时,流出羊水约1000ml。腹围105cm,宫高35cm,胎位为双头位。胎心分别为右124次/min,左128次/min。无规律性宫缩,宫颈未消失,宫口耒开,骨盆测量正常。B超探查:于耻骨联 Patient, female, 24 years old. On February 20, 1994 to pregnancy 36 ~ (+4) Monday pregnant 0, head, twin, deformity? Premature rupture of membranes admitted to hospital. Physical examination: the general condition is good, BP14 / 10kPa. Drug withdrawal 36 ~ (+4) weeks, vaginal aqueous secretions for 12 hours, out of amniotic fluid about 1000ml. Abdominal circumference 105cm, palace height 35cm, fetal position for the double-headed position. Fetal heart right 124 times / min, left 128 times / min. Irregular contractions, the cervix did not disappear, cervix 耒 open, pelvic measurements were normal. B-probe: in the pubic symphysis