J Intern Med:吸烟者房颤风险升高又添力证

2018-02-02 吴星 环球医学

2018年1月,发表在《J Intern Med》的由挪威科学家进行的Hordaland健康研究,考察了吸烟、血浆中可替丁与房颤(AF)风险之间的相关性。

2018年1月,发表在《J Intern Med》的由挪威科学家进行的Hordaland健康研究,考察了吸烟、血浆中可替丁与房颤(AF)风险之间的相关性。

背景:已确定吸烟是冠心病和死亡的一个重大的可修改的风险因素。然而,吸烟与AF之间相关性研究结果不一致。此外,既往研究的结果为基于自我报告的吸烟。

目的:考察Hordaland健康研究中,吸烟状态与尼古丁暴露标志物——血清可替丁水平,与AF风险之间的相关性。

方法:研究者开展了一项前瞻性分析,纳入6682例成人,年龄在46岁至74岁之间,基线无已知AF。通过挪威心血管疾病(CVDNOR)项目与死亡注册数据库(Cause of Death Registry),对参与者进行随访。使用调查问卷和血清可替丁水平,对吸烟状态进行评价。

结果:在中位随访11年期间,共有538例参与者进展为AF。使用调查问卷数据,校正性别、年龄、身体质量指数(BMI)、高血压、身体活力和教育水平后,目前吸烟(HR:1.41,95% 置信区间[CI]:1.09~1.83)而非过去吸烟(HR:1.03,95% CI:0.83~1.28)与AF风险增加相关。仅使用血清可替丁,与可替丁<85 nmol/L的参与者相比,可替丁≥85 nmol/L的参与者的校正后HR(95% CI)为1.40(1.12~1.75)。然而,随着血浆可替丁水平的升高,风险逐渐升高,直至1199 nmol/L(HR(95% CI):1.55(1.16~2.05),第3组vs参照组),并维持在较高的水平。

结论:目前吸烟者,而非过去吸烟者,进展为AF的风险较高。血清可替丁测量指标的使用证实了这一结果。

原始出处

Zuo H, Nygrd O, Vollset SE, et al. Smoking, plasma cotinine and risk of atrial fibrillation: the Hordaland Health Study. J Intern Med. 2018 Jan;283(1):73-82. doi: 10.1111/joim.12689. Epub 2017 Oct 4.

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