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体外循环冠状动脉旁路移植术围手术期血浆脑钠肽的变化及其临床意义 被引量:3

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摘要 目的观察体外循环冠状动脉旁路移植术(CABG)围手术期血浆脑钠肽(brain natriuretic peptide,BNP)的变化规律。方法2005年7~10月我院收治20例CABG患者,分别于麻醉诱导后,主动脉开放前,开放后20min,进入ICU,术后12h,24h和48h测量血浆BNP浓度,分析围手术期BNP的变化规律,以及BNP与心功能、血流动力学指标及术后血浆肌酸激酶同工酶(CK-MB)、肌钙蛋白(TNT)等的相关关系。结果麻醉诱导后BNP与左心室射血分数(LVEF)呈明显负相关(r=-0.912,P=0.000),与左心室舒张期末内径(r=0.714,P=0.000),肺毛细血管楔压(PCWP,r=0.809,P=0.000),中心静脉压(r=0.787,P=0.000)呈明显正相关。手术前后BNP浓度的差异有统计学意义(F=42.259,P<0.01),从主动脉钳开放后逐步上升,并在术后24h达峰值。进入ICU,术后12h,24h的BNP浓度与PCWP呈明显正相关(r=0.602,P=0.005;r=0.554,P=0.011;r=0.631,P=0.003),与CK-MB浓度呈明显正相关(r=0.528,P=0.017;r=0.638,P=0.002;r=0.882,P=0.000);但与TNT浓度的相关性不明显。结论冠心病患者术前血浆BNP浓度能正确反映术前的心功能状态;心肌缺血-再灌注损伤是术后BNP大量释放的原因;术后BNP监测能正确及时地反映患者的心功能状态,特别是前负荷状态。
出处 《中国胸心血管外科临床杂志》 CAS 2009年第6期502-504,共3页 Chinese Journal of Clinical Thoracic and Cardiovascular Surgery
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参考文献8

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同被引文献34

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