呼吸道症状的突然发作或加重，引起肺泡通气不足和通气及灌注比例失调，发生低氧血症伴或不伴有高碳酸血症称为急性呼吸衰竭（ARF）。最常见的病因为慢性阻塞性肺疾病（COPD）。本文回顾我院1985年1月～1988年12月共收治慢性支气管炎并肺心病病人654例次，将其中动脉血气分析资料完整的151例次肺心病病例分析如下： Sudden onset or worsening of respiratory symptoms, resulting in inadequate alveolar hypoventilation and imbalance of ventilation and perfusion, hypoxaemia with or without hypercapnia called acute respiratory failure (ARF). The most common cause is chronic obstructive pulmonary disease (COPD). This review of our hospital from January 1985 to December 1988 were treated a total of 654 cases of chronic bronchitis and pulmonary heart disease patients, which arterial blood gas analysis data complete 151 cases of pulmonary heart disease cases are analyzed as follows: