肺性脑病是呼吸功能衰竭发展到严重阶段出现以神经系统机能紊乱为主要表现的综合病征。病因引起呼吸衰竭的原因很多,其中以慢性阻塞性肺部疾病最常见。慢性阻塞性肺部疾病的通气和换气功能减退,以致在静息呼吸空气时,不能维持正常的动脉血氧和二氧化碳分压,即出现呼吸功能衰竭。肺性 Pulmonary encephalopathy is a syndrome characterized by neurological disorders as a severe manifestation of respiratory failure. Cause of respiratory failure caused by many reasons, of which the most common chronic obstructive pulmonary disease. Ventilatory and ventilatory dysfunction in patients with chronic obstructive pulmonary disease leads to failure to maintain normal arterial oxygen and carbon dioxide partial pressure while restful breathing air. Pulmonary