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普外 女患36岁,术前诊断:左侧结节性甲状腺肿 拟实施手术:左侧甲状腺大部分切除术 体格检查:血压110/70mmHg 心率75次/分 左侧颈部可触及3x2cm肿块,余未见异常 化验室心电图均正常 静脉开放后,行颈丛麻醉,局麻药浓度1%利多卡因,0.15%丁卡因,1:30万肾上腺素共40mL,左侧深丛15ml,浅丛10ml右侧浅丛15 mL,注药后病人自述头昏、耳鸣、视物模糊、心悸,而后烦躁不安、胡言乱语,测血压180/100 mmHg,心率132次/分,颜面部肌震颤抽搐 预防措施
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