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肺心病是由于慢性肺部疾病引起的的右心衰竭,也就是说它的病根在于肺,恶果却在于心。本病除原有肺部疾病的各种症状如长期性咳嗽、咯痰或喘息外,主要是逐步出现乏力、呼吸困难和劳动耐力下降,并可有心前区疼痛和不同程度的缺氧现象。病情的进一步发展会导致心力衰竭,以右心室衰竭为主。早期症状与呼吸衰竭近同,但以后出现气短,呼吸困难及紫绀明显加重,伴有尿少、浮肿及腹水等。
Pulmonary heart disease is due to chronic lung disease caused by the right heart failure, that is to say its root cause is the lungs, but the consequences lie in the heart. The disease in addition to the various symptoms of the original lung disease such as chronic cough, expectoration or wheezing, the main progressive fatigue, dyspnea and decreased endurance, and may have precordial pain and varying degrees of hypoxia. The further development of the disease will lead to heart failure, mainly to the right ventricular failure. Early symptoms and respiratory failure near the same, but after a shortness of breath, breathing difficulties and cyanosis significantly increased, accompanied by oliguria, edema and ascites.