BMC Med:别嘌醇可降低老年人室性心律失常风险?

2017-08-04 吴刚 环球医学

有数据显示,痛风和高尿酸血症可能与心律失常相关,比如房颤(HF)。2017年3月,发表在《BMC Med》的一项由美国科学家进行的使用美国医疗保险数据的研究,考察了别嘌醇和老年人室性心律失常风险的相关性。



有数据显示,痛风和高尿酸血症可能与心律失常相关,比如房颤(HF)。2017年3月,发表在《BMC Med》的一项由美国科学家进行的使用美国医疗保险数据的研究,考察了别嘌醇和老年人室性心律失常风险的相关性。

背景:别嘌醇是一种最常用于治疗痛风中的高尿酸血症的药物,而痛风是成人炎症性关节炎的最常见类型。目前,还没有发表过研究考察别嘌醇对心室电生理是否具有获益效应的人类学研究。本研究的目的为评估别嘌醇是否与室性心律失常(VA)风险的降低相关。

方法:研究者使用了2006~2012年医疗保险受益人随机样本的5%来检测别嘌醇的使用和VA风险。多变量Cox回归分析调整了人口统计学(年龄、种族、性别)、合并症、心脏药物、与VA相关的疾病。研究者计算了风险比(HR)及其95%置信区间(CI)。

结果:28755例别嘌醇新使用的发作中,2538例与VA相关(8.8%)。VA的患者中,54%为男性,78%为白人,75%具有痛风作为基础诊断,平均Charlson-Romano合并症评分为4.8。每1000000人年的VA粗略发病率随着别嘌醇使用时间的延长而降低:1~180天,151;181天~2年,105;>2年,85。多变量调整分析中,与不使用相比,别嘌醇使用与VA HR降低0.82(95% CI,0.76~0.90)相关。与别嘌醇不使用相比,较长的别嘌醇使用时间与VA较低的多变量调整HR显著相关:1~180天,0.96(95% CI,0.85~1.08);181天~2年,0.76(0.68~0.85);>2年,0.72(0.60~0.87)。调整了心脏疾病、抗心律失常药物和替代定义后的多元敏感性分析证实了这些结果,并且估计值最小/无衰减。

结论:别嘌醇的使用和使用时间超过6个月与较低的VA风险独立相关。将来的研究应该评估该潜在获益的病理生理学。

原始出处

Singh JA and Cleveland J. Allopurinol and the risk of ventricular arrhythmias in the elderly: a study using US Medicare data. BMC Med. 2017 Mar 22;15(1):59. doi: 10.1186/s12916-017-0816-6.

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    2017-08-06 xugumin
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    2017-08-04 哈哈869

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