国内的慢性肺心病多发生于40岁以上的人群,约占患病总人数的85～90％,其中以51～60岁年龄组为最多(占患病总人数40％左右),其次为41～50岁年龄组(27％左右);老年组(61岁以上)占23％左右。此种年龄分布可能与国内的慢性支气管炎的患病率以31～40岁年龄组为最高有关,从慢性支气管炎发展到肺心病需要10～15年,而肺心病发生心、肺功能衰竭后,其平均存活期为5～7年,因此住院的肺心病人以61～60岁为最多。老年人肺心病的临床特点是:各个脏器(尤其 Domestic chronic pulmonary heart disease occurs in people over the age of 40, accounting for about 85% to 90% of the total number of patients, of which 51 to 60 years of age group is the most (accounting for about 40% of the total number of patients), followed by 41 ~ 50 years old group (about 27%); elderly group (61 years old) accounted for about 23%. This age distribution may be associated with the prevalence of chronic bronchitis in the 31 to 40 age group is the highest from the development of chronic bronchitis to pulmonary heart disease needs 10 to 15 years, and pulmonary heart disease, heart failure, pulmonary failure , The average survival period of 5 to 7 years, so pulmonary heart disease in patients with 61 to 60 years of the most. The clinical features of pulmonary heart disease in the elderly are: various organs (especially