患者32岁,因孕足月,下腹部疼痛3天伴阴道流血1小时,于2012年5月25日以“G4P3孕足月(臀位)临产,脐绕颈2周”入院。住院号:35044。末次月经2012年7月,具体日期不详,月经规律,定期在院外行产前检查,近2周出现双下肢轻度水肿,无头晕眼花、恶心,呕吐,晕厥及外伤史。入院前一周,我院门诊产前检查,B超提示:宫内单活胎,臀位, The patient, 32, was admitted to the hospital on May 25, 2012 with "G4P3 full term pregnancy (breech) at birth due to gestational term and abdominal pain for 3 days with vaginal bleeding for 1 hour. Hospital number: 35044. The last menstrual period July 2012, the specific date is unknown, menstrual regular, regular prenatal examination in the hospital, nearly two weeks of mild lower extremity edema, no dizziness, nausea, vomiting, syncope and trauma history. One week before admission, our hospital prenatal examination, B-Tip: intrauterine single live births, breech,