驱动压降低,造成呼气气流缓慢。这两个因素使COPD患者呼出气流受限,在呼气时间内肺内气体呼出不完全,形成动态肺过度充气(dynamic pulmonary hyperinflation, DPH)1,2,3。由于DPH的存在,肺动态顺应性降低,其压力-容积曲线趋于平坦,在吸入相同容量气体时需要更
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...越来越多地发现这一广泛应用的指标与COPD的主要症状——呼吸困难并不密切相关,而发现肺动态过度充气(dynamic hyperinflation,DH)在COPD患者的呼吸困难和运动受限中起关键作用。
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驱动压降低,造成呼气气流缓慢。这两个因素使COPD患者呼出气流受限,在呼气时间内肺内气体呼出不完全,形成动态肺过度充气(dynamic pulmonary hyperinflation, DPH)1,2,3。由于DPH的存在,肺动态顺应性降低,其压力-容积曲线趋于平坦,在吸入相同容量气体时需要更
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动态肺过度充气 DPH ; dynamic pulmonary hyperinflation
肺过度充气 pulmonary hyperinflation
老年性肺过度充气 senile hyperinflation
动态过度充气 dynamic hyperinflation ; DH ; dynamic overinflation
形成动态肺过度充气 dynamic pulmonary hyperinflation
肺部过度充气 Pulmonary hyperinflation ; PHI
表现为肺动态过度充气 dynamic pulmonary hyperinflation ; DPH
动态性肺过度充气 dynamic hyperinflation
而发现肺动态过度充气 dynamic hyperinflation
结论MLT可减少长期机械通气时气管导管气囊过度充气所致的并发症。
Conclusion MLT could reduce complications of excessive air filling into tube cuff during long-term mechanical ventilation.
研究人员报道,基础水平时,对速尿有反应者与无反应者相比,严重的呼气流量受限和过度充气显著下降。
At baseline, those who responded to furosemide had significantly less severe expiratory airflow limitation and hyperinflation than did nonresponders, the investigators report.
结论COPD急性加重期较稳定期肺功能显著下降,肺过度充气和外周气道阻力增加是急性加重期肺功能恶化的主要原因。
Conclusions Pulmonary function of COPD decreased significantly from stable stage to exacerbation, the main reasons of which were hyperinflation and the increasing of peripheral airway resistance.
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