Predictive value of neutrophil-to-lymphocyte ratio on anticoagulation therapy bleeding events in the perioperative period of radiofrequency ablation in patients with nonvalvular atrial fibrillation
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摘要: 目的:探讨中性粒细胞与淋巴细胞比值(NLR)和非瓣膜病心房颤动(房颤)患者射频消融围术期抗凝出血风险的关系。方法:连续纳入491例非瓣膜病房颤患者,根据消融围术期抗凝方案分为华法林组278例和新型口服抗凝药组213例。并根据NLR中位数,分别将两组患者分为低NLR和高NLR亚组,记录两组患者围术期出血事件发生情况。结果:华法林组围术期出血事件24例,新型口服抗凝药组围术期出血事件16例。两组中高NLR患者的出血事件发生率均高于低NLR患者(P<0.05)。多因素Logistic回归分析显示,NLR在华法林组(OR=2.41,95%CI:1.32~4.43,P<0.05)和新型口服抗凝药组(OR=2.37,95%CI:1.03~5.42,P<0.05)均可独立预测出血事件的发生。NLR预测华法林组和新型口服抗凝药组出血事件发生的ROC曲线下面积分别为0.71(95%CI:0.59~0.83,P<0.05,临界点2.31)和0.73(95%CI:0.59~0.87,P<0.05,临界点1.88)。结论:非瓣膜病房颤患者射频消融围术期抗凝出血风险随着NLR增高而增加,NLR可成为预测非瓣膜病房颤消融围术期抗凝出血风险的独立危险因素。Abstract: Objective:To investigate the relationship between neutrophil-to-lymphocyte ratio(NLR) and anticoagulation therapy bleeding events in the perioperative period of radiofrequency ablation in patients with nonvalvular atrial fibrillation(NVAF).Method:A total of 491 consecutive NVAF patients were enrolled in this study.Patients were divided into warfarin group(n=278) and non-vitamin K antagonist oral anticoagulants(NOACs) group(n=213) according to anticoagulation therapy in the perioperative period,and the two groups of patients were divided into low NLR and high NLR according to the median NLR.The occurrence of bleeding events in the perioperative period of radiofrequency ablation was recorded.Result:During perioperative period,24 cases of bleeding events occurred in warfarin group and 16 cases of bleeding events occurred in NOACs group.The incidence of bleeding events was higher in the two groups of patients with high NLR than in patients with low NLR(P<0.05).Multivariate Logistic regression analysis showed that NLR can independently predict the occurrence of bleeding events in warfarin group(OR=2.41,95%CI:1.32~4.43,P<0.05) and NOACs group(OR=2.37,95%CI:1.03~5.42,P<0.05).The area under the ROC curve for NLR to predict the occurrence of bleeding events in warfarin group and NOACs group was 0.71(95%CI:0.59~0.83,P<0.05,cutoff point 2.31) and 0.73(95%CI:0.59~0.87,P<0.05,cutoff point 1.88),respectively.Conclusion:The occurrence of anticoagulation therapy bleeding events in the perioperative period of radiofrequency ablation in patients with NVAF increases with the increase of NLR,and NLR can be an independent predictor for bleeding events during perioperative period.
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