BACKGROUND:The Cardiac failure, Hypertension, Age, Diabetes, Stroke [Doubled] (CHADS(2)) score is a useful scheme for risk stratification of thromboembolism patients, but there is little information about its usefulness for the evaluation of antiarrhythmic drug (AAD) therapy. METHODS AND RESULTS:This study included 459 paroxysmal atrial fibrillation (AF) patients (309 men, mean age 66 ± 12 years, mean follow-up 50 ± 35 months) and prophylactic efficacy was analyzed on the basis of CHADS(2) score. (1) Survival rates free from AF recurrence at 1, 6, 12 and 24 months were, respectively, 89%, 74%, 63% and 47% in score-0 group (n=152); 92%, 68%, 59% and 48% in score-1 group (n=158); 86%, 64%, 56% and 46% in score-2 group (n=84); 81%, 65%, 51% and 35% in score-3 group (n=43); and 68%, 50%, 36% and 18% in ≥ score-4 group (n=22) (P<0.05; score-0, score-1 or score-2 vs. ≥ score-4 group). (2) Survival rates free from progression to chronic AF at 12, 36, 60 and 90 months were, respectively, 95%, 93%, 91% and 89% in score-0 group; 97%, 91%, 89% and 88% in score-1 group; 96%, 93%, 88% and 83% in score-2 group; 91%, 74%, 67% and 60% in score-3 group; and 91%, 82%, 68% and 55% in ≥ score-4 group (P<0.01; score-0, score-1 or score-2 vs. ≥ score-4 group). (3) In multivariate logistic regression analysis adjusted for potentially confounding variables, CHADS(2) score was associated with AF recurrence (odds ratio [OR] 1.45, 95% confidence interval [CI] 1.16-1.81, P<0.001), and progression to chronic AF during AAD therapy (OR 1.64, 95% CI 1.04-2.69, P<0.001). CONCLUSIONS:When using a rhythm control strategy, the CHADS(2) score is a useful scheme for predicting the outcome of AAD treatment of patients with paroxysmal AF.  

译文

背景:心脏衰竭,高血压,年龄,糖尿病,中风[加倍](CHADS(2))评分是对血栓栓塞患者进行风险分层的有用方案,但有关其对抗心律不齐药物(AAD)评估的有用性的信息很少) 治疗。
方法与结果:这项研究纳入459例阵发性房颤(AF)患者(309名男性,平均年龄66±12岁,平均随访50±35个月),并根据CHADS(2)评分分析了其预防性疗效。 (1)得分为0的组在1、6、12和24个月无房颤复发的生存率分别为89%,74%,63%和47%(n = 152);得分1组(n = 158)为92%,68%,59%和48%;得分2组分别为86%,64%,56%和46%(n = 84);得分3组(n = 43)分别为81%,65%,51%和35%; ≥4分组(n = 22)分别为68%,50%,36%和18%(P <0.05; 0分,1分或2分与≥4分组比较)。 (2)在0级评分组中,在12、36、60和90个月无进展为慢性房颤的生存率分别为95%,93%,91%和89%;得分1组分别为97%,91%,89%和88%;得分2组分别为96%,93%,88%和83%;分数3组的比例分别为91%,74%,67%和60%; ≥4分组分别为91%,82%,68%和55%(P <0.01; 0分,1分或2分与≥4分组比较)。 (3)在针对潜在混杂变量进行调整的多因素logistic回归分析中,CHADS(2)评分与房颤复发相关(几率[OR] 1.45、95%置信区间[CI] 1.16-1.81,P <0.001)和进展到AAD治疗期间的慢性房颤(OR 1.64,95%CI 1.04-2.69,P <0.001)。
结论:使用节律控制策略时,CHADS(2)评分是预测阵发性房颤患者AAD治疗结果的有用方案。

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