％0期刊文章％A HighCock，M.P。％a shneerson，J.M.％a史密斯，即NIIPPV使用NIIPPV的通风增加不一定会提高COPD％D 2003％r 10.1183/09031936.03.00292203％J欧洲呼吸期刊％p 100-105％v 22％v 22％n 1％x证据表明非侵入性阳性压力隔开通风证据（NIIPPV）提高慢性阻塞性肺疾病（COPD）的运动能力受到限制。在这种情况下，不同呼吸机的有效性尚未研究。在八名患有COPD的受试者中，比较了通过烟嘴施加的三个二聚体压力支撑呼吸机（BIPAP S/T 30，NIPPY2和VPAP II ST）。受试者在每个呼吸机上疲惫不堪，同时单独呼吸，以随机顺序呼吸。此外，还进行了四次无障碍步行。行走的无限距离（平均值±SD）为259±123 m。仅使用烟嘴，niippv降至211±96 m，然后进一步降至145±76 m。 There was no difference between the brands of ventilator. At the break-point of exercise, significant increases were seen in tidal volume and minute ventilation in the ventilator walks compared with the mouthpiece alone. Noninvasive intermittent positive-pressure ventilation increased ventilation but did not improve exercise capacity in the subjects in this study. No significant differences were seen between the ventilators. The effectiveness of this technique and the optimal method of assistance require further clarification. %U //www.qdcxjkg.com/content/erj/22/1/100.full.pdf