Association of neutrophil/lymphocyte ratio with long-term mortality after ST elevation myocardial infarction treated with primary percutaneous coronary intervention

作     者：SHEN Xu-hua CHEN Qi SHI yan LI Hong-wei 

作者机构：Department of Cardiology Beijing Friendship Hospital Affiliatedto Capital Medical University Beijing 100050 China Department of Computer Capital Medical University Beijing100030 China 

出 版 物：《Chinese Medical Journal》 (中华医学杂志（英文版）)

年 卷 期：2010年第123卷第23期

页      面：3438-3443页

核心收录：

学科分类：0710[理学-生物学] 1002[医学-临床医学] 07[理学] 070305[理学-高分子化学与物理] 071009[理学-细胞生物学] 0703[理学-化学] 

基　　金：This study was supported by the grants from Beijing Municipal Education Commission Scientific ＆ Technology Development Program and Beijing Natural Science Foundation （No. KM200710025018 and No. 7082027）. 

主　　题：neutrophil/lymphocyte ratio primary percutaneous coronary intervention ST elevation myocardial infarction inflammation 

摘      要：Background Primary percutaneous coronary interventions （PCI） have been proposed as a novel superior management strategy in patients with ST elevation myocardial infarction （STEMI）. This study tested the hypothesis that in the acute phase of myocardial infarction with ST-segment elevation, the neutrophil/lymphocyte （N/L） ratio is a predictor of long-term prognosis.Methods We analyzed 551 consecutive STEMI patients treated with primary PCl at a single university center. Patients were stratified according to quartiles of the mean neutrophil/lymphocyte ratio.Results Kaplan-Meier survival analysis showed a cumulative eight-year survival of 94.2% in the first quartile, 92.0% in the second quartile, 91.3% in the third quartile, and 75.4% in the fourth quartile （P 0.001 by log rank）. Relative to patients in the other three lower N/L ratio quartiles, patients in the highest quartile were more than four times more likely to die during hospitalization （P 0.001） and during long-term follow-up （P 0.001）. By multivariate Cox regression analysis including baseline demographic, clinical, and angiographic covariables, the N/L ratio in the highest quartile remained an independent predictor of mortality （hazard ratio 2.38, 95% confidence interval （CI） 1.42 to 3.98; P=0.001）.Conclusion The neutrophil/lymphocyte ratio is a strong independent predictor of long-term mortality after ST elevation myocardial infarction treated with very early revascularization.