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颅内肿瘤继发癫痫患者术中镇静药物对皮层脑电的影响

, PP. 150-153

Keywords: 镇静方案,颅内肿瘤继发癫痫,暴发抑制,皮层脑电图

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Abstract:

目的比较颅内肿瘤继发癫痫患者不同镇静方案对术中皮层脑电(electrocorticography,ECoG)的影响,探讨癫痫外科手术镇静药物的用法。方法选择2012年9月至2014年1月100例伴癫痫发作的颅内肿瘤患者,分为4组,每组25例。A组:麻醉诱导静注丙泊酚(2mg/kg)、舒芬太尼(0.5μg/kg)、罗库溴铵(0.6mg/kg);麻醉维持予1%七氟烷吸入,浓度控制在(0.80±0.20)最低肺泡有效浓度(minimalalveolarconcentration,MAC),复合丙泊酚1.60~2.50mg/(kg·h)持续静脉泵入,并持续泵注瑞芬太尼1μg/(kg·h),间断应用罗库溴铵。ECoG监测(监测1)前约10min停泵丙泊酚,监测时将七氟烷浓度控制在0.5MAC以下。B组:麻醉诱导静注咪达唑仑0.1mg/kg代替丙泊酚,其余同A组;C组:ECoG监测前不停泵丙泊酚,其余同A组;D组:监测时七氟烷吸入浓度控制MAC在0.5~1.0之间,其余同A组。病灶切除后行第2次ECoG监测(监测2),统计分析各组ECoG监测中暴发抑制(burstsuppression,BS)发生数。结果①A、B组间比较,A组BS发生数明显低于B组(P<0.05);②A、C组间比较,BS发生数差异无统计学意义(P>0.05);③A、D组间比较,A组BS发生数明显低于D组(P<0.05);④监测2中仅B组有1例患者出现BS,在13例术中唤醒的患者静脉推注丙泊酚时,12例(92.31%)出现了BS。结论在颅内肿瘤继发癫痫患者中推荐的镇静方案是:麻醉诱导予以丙泊酚(2mg/kg)静脉推注,维持镇静采用1%七氟烷吸入复合丙泊酚1.60~2.50mg/(kg·h)静脉泵入,ECoG监测前10~15min停用丙泊酚,监测时将七氟烷吸入浓度控制在0.5MAC之下,以减少其对ECoG的影响。

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