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改良超滤对婴幼儿围体外循环期细胞因子及组织损伤的影响

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摘要 目的:改良超滤对婴幼儿围体外循环期细胞因子及组织损伤的影响.方法:22例无肝肾功能不全的先天性心脏病患儿预期随机分为改良超滤组(M组)和对照组(C组),分别于术前(T1)、体外循环结束(T2)、体外循环后20min(T3)、术后6h(T4)、术后24h(TS)采其挠动脉血测定肿瘤坏死因子(TNF-α)、白介素一8(IL-8)、肌酸激酶(CK)、肌酸激酶同工酶(CK-MB)、乳酸脱氢酶(LDH).结果:①所有病例无死亡,均顺利出院,术后未发现与超滤有关的并发症,患者一般资料两组比较无统计学差异,超滤组平均滤出液量(392.73±10.54)ml.②超滤组TNF-α浓度显著低于对照组(P〈0.05).TNF-α与基础值相比,对照组体外循环结束显著升高(P〈0.05),体外循环后20min达峰值(P〈0.01),术后6h开始下降(P〈 0.01),但仍显著高于基础水平(P〈0.01),术后24h恢复至基础水平(P〉0.05),超滤组则无明显升高(P〉0.05),组间比较,体外循环后,20min(P〈0.01)、术后6h(P〈0.05)超滤组明显低于对照组,术后24h无显著差异(P〉0.05).IL-8与基础值相比,两组均于体外循环结束显著升高(P〈 0.01)并达峰值,于术后6h恢复至基础水平(P〉0.05),对照组术后24h又显著升高(P〈0.05),与峰值比较,超滤组术后24h显著下降(P〈0.05),组间比较,术后24h超滤组IL-8水平显著低于对照组.CK-MB与基础值相比,体外循环结束至术后6h,两组CK-MB均明显升高(P〈0.01),术后24h开始下降,但对照组仍高于基础水平(P〈0.05),超滤组与基础值无显著差异(P〉0.05),于体外循环后20min达峰值,与峰值比较,术后6h显著下降(P〈0.05),术后24h继续下降(P〈0.01),各时间点两组间比较无显著差异(P〉0.05).LDH与基础值相比,对照组术后6h显著升高(P〈0.05),术后24h达峰值(P〈0.01),超滤组体外循环结束显著升高(P〈0.05),持续升高至术后24h达峰值(P〈0.01),各时间点两组间比较无显著差异(P〉0.05).③相关分析示TNF-α与CK-MB呈正相关(r=0.514,P〈0.01).结论:①婴幼儿体外循环可触发明显的炎性反应过程,TNF-α、IL-8是重要的炎性细胞因子.②体外循环对婴幼儿有明显的致组织损伤作用.③TNF-α是导致婴幼儿体外循环后心肌损伤的重要细胞因子.④改良超滤可清除婴幼儿体外循环后体内部分炎性细胞因子.⑤改良超滤在一定程度上可减轻婴幼儿体外循环后组织损伤.
出处 《医学信息(下旬刊)》 2010年第9期17-18,共2页 Medical information
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参考文献6

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