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紫绀型先天性心脏病患者术中心肌复氧性损伤的早期监测

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摘要 目的探讨紫绀型先天性心脏病患儿体外循环(CPB)期血浆异构前列腺素水平变化及其意义,并观察相同时间点血浆肌酸激酶同工酶(CK-MB)、心肌肌钙蛋白I(cTnI)的变化,为临床早期发现紫绀型先天性心脏病术中的心肌损伤程度提供一定的依据。方法 60例需要CPB下行外科手术的患儿,术中CPB阻断时间≤30 min的患儿为I组;CPB阻断时间>30 min的患儿是II组。两组分别于麻醉诱导后手术前(T0)、主动脉阻断后20 min(T1)、主动脉开放后10 min(T2)、开放后30 min(T3)这4个时间点,抽取中心静脉血测Isoprostane的指标。分别T0、T1、T2、T3时抽取中心静脉血测血清CK-MB、cTnI水平。结果随着时间的推移和CPB的应用,两组患儿CPB期间血浆Isoprostane水平逐渐升高。两组患儿Isoprostane水平在T0与T1时间点差异均无统计学意义(P>0.05);两组患儿Isoprostane水平在T2和T3时间点明显升高,且两组在T2与T3时间点比较差异有统计学意义(P<0.05)。两组患儿CK-MB、cTnI水平在在T2与T3时间点比较差异有统计学意义(P<0.05)。结论紫绀型先天性心脏病患儿手术期间血浆Isoprostane升高,且与术后CK-MB及cTnI值与升高的水平有相关性。Isoprostane水平对于术中早期心肌保护有一定的指导意义。
作者 张莹 尹述洲
出处 《中国现代药物应用》 2014年第20期69-70,共2页 Chinese Journal of Modern Drug Application
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