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乌司他丁预处理对术中心脏瓣膜置换患者心电图的影响 被引量:5

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摘要 目的研究乌司他丁预处理对术中心脏瓣膜置换患者心电图的影响,探讨其对体外循环(CPB)心内直视手术缺血再灌注损伤的心肌保护作用。方法选择接受心内直视手术行瓣膜置换患者45例,随机分为3组:A组于术前3d静脉滴注乌司他丁2万u/(kg.d),用至术前1d,连续用药3d;B组患者进入手术室后即开始静脉滴注乌司他丁2万u/kg,维持至升主动脉阻断前10min;C组为对照组,不用乌司他丁预处理。记录各组麻醉后(T1)、主动脉插管时(T2)、心脏复跳时(T3)、主动脉开放10~15min(T4)、主动脉开放30min(T5)、主动脉开放45min(T6)、主动脉开放1~2h(T7)、术后24h(T8)时心电图的改变,记录各组主动脉开放后血管活性药物的使用剂量。结果A组与B组体外循环再灌注后5~10min室颤发生率分别为27%、7%,C组60%(P<0.05);A组、B组T3、T4、T5、T6等时点再灌注心律失常评分显著小于C组(P<0.05,P<0.01),B组显著小于A组(P<0.05);A组、B组T3、T4、T5、T6、T7、T8时心电图中∑ST-T抬高或下移显著小于C组(P<0.05,P<0.01),B组显著小于A组(P<0.05);A组、B组CPB后心脏自动复跳率(73%、93%)明显高于C组(40%),A组、B组多巴胺[>5μg/(kg.min)]的使用(40%、20%)明显低于C组(87%),且平均使用时间A组、B组显著短于C组(P<0.05,P<0.01);A组、B组肾上腺素使用率(6%、0%)明显低于C组(40%),且A组、B组使用时间和最大剂量均显著降低(P<0.05)。结论乌司他丁预处理减轻体外循环心内直视手术缺血再灌注心律失常,产生心肌保护作用,既有早期保护作用(earlyprotection,EP),亦有延迟保护作用(delayedprotection,DP),但早期保护效应较强。
出处 《广东医学》 CAS CSCD 北大核心 2010年第7期880-882,共3页 Guangdong Medical Journal
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同被引文献40

  • 1施贤清,王宇辉,李建权,胡远东,成小蓉,李琨.不同剂量乌司他丁对体外循环术后肺保护的临床研究[J].四川大学学报(医学版),2013,44(5):752-755. 被引量:14
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