慢性肺源性心脏病(即肺心病)是我国老年人群中的常见病、多发病,常见并发症是由于严重缺氧和二氧化碳潴留引起Ⅱ型呼吸衰竭死亡,临床上将低氧血症和高碳酸血症导致的各种神经精神症状称为肺性脑病[1]。纳洛酮能够解除中枢神经对呼吸的抑制作用,改善机体缺氧的状况,在临床 Chronic pulmonary heart disease (ie, pulmonary heart disease) is a common disease in our elderly population, frequently-occurring disease, common complications are due to severe hypoxia and carbon dioxide retention caused by type II respiratory failure death, clinically hypoxemia and high Various neuropsychiatric symptoms caused by carbonic acid are called pulmonary encephalopathy [1]. Naloxone can relieve the central nervous system of respiratory inhibition, improve the body hypoxia, in clinical