术前B型利钠肽水平预测冠状动脉旁路移植术后新发心房颤动准确性的系统评价

Accuracy of Preoperative B-type Natriuretic Peptide Level in Predicting New Onset Atrial Fibrillation in Patients after Coronary Artery Bypass Grafting:A Systematic Review

目的评价术前B型利钠肽(brain natriuretic peptide,BNP)水平在预测冠状动脉旁路移植术(coronary artery bypass grafting,CABG)后新发心房颤动(atrial fibrillation,AF)中的价值。方法计算机检索PubMed、EMbase、Cochrane图书馆、中国期刊全文数据库(CNKI)及维普(VIP)数据库,筛选有关CABG术前BNP与术后AF发生相关性的文献,检索时间从建库至2012年11月。根据诊断性试验准确性质量评价(QUADAS)标准评价纳入文献质量。采用RevMan 5.0进行异质性检验,Meta-Disc1.4进行Meta分析,对纳入文献进行加权定量合并,计算汇总敏感度、特异度、诊断比值比、阳性似然比和阴性似然比及其95%可信区间(95%CI),绘制汇总受试者工作特征曲线(SROC),并计算ROC曲线下面积(AUC)。结果检出相关文献236篇,根据纳入标准最终纳入5篇文献;共纳入患者802例,其中术后发生AF 228例,未发生AF 574例。纳入文献质量均较高。术前增加的BNP浓度与术后AF发生的诊断比值比为4.15[95%CI(2.90,5.95)];汇总敏感度为0.78[95%CI(0.72,0.83)],汇总特异度为0.58[95%CI(0.54,0.58)],汇总阳性似然比为1.91[95%CI(1.42,1.56)],汇总阴性似然比为0.42[95%CI(0.32,0.54)];AUC为0.79(Q值为0.72)。结论 CABG术前BNP水平升高与术后新发AF具有明显的相关性,是术后AF发生的强预测因子,可以在一定程度上预测术后AF的发生。

Objective To evaluate the value of preoperative B-type natriuretic peptide （BNP） level in predicting new onset atrial fibrillation （AF） in patients after coronary artery bypass grafting （CABG）. Methods We electronically searched PubMed, EMbase, Cochrane Library, CNKI and VIP databases from the establishment of those databases to November 2012. Evaluation standard of diagnostic tests was used to identify and screen literatures which investigated correlations between preoperative BNP levels and new onset AF of patients after CABG. Quality Assessment of Diagnostic Accuracy Studies （QUADAS） was used to evaluate study quality of included literatures. RevMan 5.0 was used for heterogeneity test. Meta-Disc 1.4 software was used for meta-analysis. Included studies were weighted and then combined. Sensitivity, specificity, diag- nostic odds ratio （DOR）, positive likelihood ratio, negative likelihood ratio and corresponding 95% confidence interval（ 95% CI） were calculated. Summary receiver operating characteristic （SROC） curve was drawn, and the area under the SROC curve （AUC） was analyzed. Results A total of 236 studies were identified, and 5 studies met the eligibility criteria including 802 patients for analysis. There were 228 patients with postoperative new onset AF, and 574 patients without postoperative AF. The quality of the included literature was relatively high. DOR of preoperative elevated BNP level with postoperative new onset AF was 4.15 with 95% CI 2.90 to 5.95. Pooled sensitivity was 0.78 with 95% CI 0.72 to 0.83, pooled specificity was 0.58 with 95% CI 0.54 to 0.58, pooled positive likelihood ratio was 1.91 with 95% CI 1.42 to 1.56, pooled negative likelihood ratio was 0.42 with 95% CI 0.32 to 0.54, and the AUC of SROC was 0.79 （Q=0.72）. Conclusion Preoperative elevated BNP level is significantly correlated with new onset AF after CABG, is a powerful predictor of post- operative AF, and can be used to predict new onset AF after CABG to a certain extent of reliability.