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[例1]28岁。孕40周,第一胎,骶左前,临产,1983年7月19日入院。检查:PB110/70(核15/qkpa),宫高30cm,腹围90cm,胎心140次。因臂位,患者申请剖宫产术分娩。19日17时在连续硬膜外麻醉后取仰卧位,首次注入2％利多卡因5ml,经5分钟后患者出现头晕、恶心、胸闷、烦躁、面色苍白、脉搏增快、血压60/40(核8/5 Kpa)。立即取左侧卧位同时使用升压药,约5分钟后血压恢复正常,症
[Example 1] 28 years old. Forty weeks of pregnancy, the first child, sacral left anterior, labor, July 19, 1983 admission. Check: PB110 / 70 (nuclear 15 / qkpa), Palace height 30cm, abdominal circumference 90cm, fetal heart rate 140 times. Due to arm position, patients apply cesarean delivery. At 17:00 on the 19th at a continuous postoperative epidural anesthesia supine position, the first injection of lidocaine 2% 2ml, after 5 minutes the patient showed dizziness, nausea, chest tightness, irritability, pale, pulse, blood pressure 60/40 ( Nuclear 8/5 Kpa). Immediately take the left lateral position while using the vasopressor, about 5 minutes after the blood pressure returned to normal, disease