Respir Med:COPD:β2激动剂和抗胆碱能药物的BDR不尽相同

2017-06-23 安雅晶 吴刚 环球医学

2017年6月,发表在《Respir Med》的一项由日本科学家进行的研究考察了与急性支气管扩张剂反应(BDR)相关的慢性阻塞性肺病(COPD)的不同临床特征。

2017年6月,发表在《Respir Med》的一项由日本科学家进行的研究考察了与急性支气管扩张剂反应(BDR)相关的慢性阻塞性肺病(COPD)的不同临床特征。

背景:急性BDR是COPD的潜在表型特征。但是,COPD患者中与BDR相关的临床因素,尤其是抗胆碱能药物的BDR临床相关因素目前仍不清楚。

目的:旨在阐明β2激动剂和/或抗胆碱能药物的BDR相关临床因素,考虑BDR的时间相关变化。研究人员也评估了BDR和COPD临床病程之间的相关性。

方法:研究人员分析了北海道COPD队列研究中的152名受试者。研究人员重复测量沙丁胺醇(400 μg)或氧托溴铵(400 μg)的BDR,每6个月3次,为期3年。“可逆性”定义为FEV1基线以上增加≥12%和≥200 mL。基于BDR稳定性,全部受试者被分为3组:始终可逆、始终不可逆、不一致。研究人员比较了3组中患者的基线临床特征和COPD 5年临床病程。

结果:对于8种药物,始终可逆组中的平均血液嗜酸性粒细胞计数显着高于始终不可逆组(p<0.05)。与其他2个组相比,始终可逆组的受试者对氧托溴铵(p<0.05)而非沙丁胺醇(p=0.56)显示出加重的风险增加。

结论:研究人员确定了与急性BRD状态相关的COPD的不同临床特征。胆碱能气道张力增加可能与COPD加重相关,这反映在BDR只对抗胆碱能药物而非β2激动剂增加。

原始出处:

Konno S, Makita H, et al. Acute bronchodilator responses to β2-agonist and anticholinergic agent in COPD: Their different associations with exacerbation. Respir Med. 2017 Jun;127:14-20. doi: 10.1016/j.rmed.2017.04.005.

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    2018-04-15 871538379

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