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一般特征定义肺原性心脏病(cor pulmonale,简称肺心病),系指由于各种疾患影响肺脏的结构或功能所引起的右心肥大。其主要含义是:①肺心病的病因可以是肺脏内在的病变,包括肺血管异常;或胸廓风箱式运动的功能不足;或呼吸中枢的通气兴奋性不足;②心脏增大主要限于右心室,呈扩大或肥大的形式,或二者兼有;③肺动脉高压是促成右心肥大的必要条件。右心肥大究以扩大抑或以肥大为主,取决于肺高压的程度与时限;④先天性心脏病和左心获得性心脏病,均与肺动脉高压的发病机理无关。发病和流行肺心病之所以如此多见,乃因和慢性支气管炎和肺气肿密切相关。近年来它成为劳动力丧失和死亡的一个主要原因。但
General characteristics Definition Cor Pulmonale (Pulmonary Heart Disease) refers to right ventricular hypertrophy due to various disorders affecting the structure or function of the lungs. The main implications are: ① the etiology of pulmonary heart disease may be inherent in the lung lesions, including pulmonary vascular abnormalities; or lack of function of the thorax bellows movement; or lack of ventilation of the respiratory center insufficiency; ② heart increased mainly confined to the right ventricle, Was enlarged or hypertrophy in the form, or both; ③ pulmonary hypertension is necessary to promote right ventricular hypertrophy. Right heart fat enlargement or hypertrophy based mainly on the degree and duration of pulmonary hypertension; ④ congenital heart disease and left heart-acquired heart disease, pulmonary hypertension have nothing to do with the pathogenesis. Pathogenesis and prevalence of pulmonary heart disease is so common, but because of chronic bronchitis and emphysema are closely related. In recent years it has become a major cause of labor loss and death. but