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本文研究间歇负压通气(INPV)对重症COPD患者急性呼衰时呼吸肌疲劳的作用.患者与方法9(男8,女1)例伴有急性呼衰(ARF)的重症COPD 患者并伴有明显的呼吸肌疲劳(A 组),平均年龄61±7.7岁.借助铁肺进行间歇负压通气(INPV)。压力-50～-60cmH_2O,保证获得>500ml 的潮气量,频率15次/min,待患者清醒后改为间歇通气,2 h/次,8 h/d,连用7日.治疗前和后7日分别检测肺功能和血气.对照(B)组为7例伴有慢性呼衰(CRF)的COPD 患者(男5,女2例),平均年龄61±6.6岁.两组临床症状
This article investigates the effect of intermittent negative pressure ventilation (INPV) on respiratory muscle fatigue in acute respiratory failure in patients with severe COPD.Patients and Method 9 (Male 8, Female 1) Severe COPD with acute respiratory failure (ARF) Obvious respiratory muscle fatigue (group A) with a mean age of 61 ± 7.7 years Intermittent vacuum ventilation (INPV) with iron lungs. Pressure -50 ~ -60cmH2O, to ensure that> 500ml of tidal volume, frequency 15 times / min, until the patient awake to intermittent ventilation, 2 h / time, 8 h / d, once every 7 days before and after treatment on the 7th (Group B) were 7 COPD patients (5 males and 2 females) with chronic respiratory failure (CRF), with a mean age of 61 ± 6.6 years.The clinical symptoms