%0刊期刊文章%A Yan,S%A Sigherby,C%A Beeck,P%A Comtois,N%A Sliwinski,P%T呼气肌压和呼吸力学在慢性阻塞性肺病中的呼吸力学,慢性阻塞性肺病%D 2000%J欧洲呼吸轴颈%P 684-690%v 16%N 4%x呼气肌肉募集是稳定的慢性阻塞性肺病(COPD)患者常见。由于气道阻塞,几乎没有理由认为COPD中的积极到期将在降低操作肺体积方面是机械有效的。因此,COPD呼气肌肉招募的生理意义仍然未知。本研究的目的是评估,在COPD患者呼吸静止时,呼气肌肉收缩对膈肌的力产生能力的影响。从其压力摆动(PDI)对给定膜片电活动(EDI)的压力摆动(PDI)评估膜片的力产生能力,其中EDI被标准化为其最大值的百分比(PDI / EDI / EDI,MAX)。测量临时呼气肌收缩作为胃部压(PGA,EXP.RISE)的总呼气升高。九九届患有中度至严重COPD的患者,参加了该研究和10在呼气期间参加了第10次在PGA期间表现出序列,exp.rise为1.91 +/- 0.89cmH2O。因此,患者分为被动呼气(PE)和活性到期(AE)组。两组之间的各种肺功能和呼吸模式参数没有显着差异。 Pdi/Edi/Edi,max was 0.63+/-0.07 and 0.54+/-0.07 cmH2O/% in PE and AE groups, respectively, and was not significantly different between each other. Compared with PE group, AE group not only recruited expiratory muscles, but also preferentially recruited inspiratory rib cage muscles and derecruited the diaphragm. The results do not support a significant improvement of the force-generating ability of the diaphragm by phasic contraction of expiratory muscles at rest in chronic obstructive pulmonary disease patients. %U //www.qdcxjkg.com/content/erj/16/4/684.full.pdf