Chronic pulmonary heart disease, referred to as "chronic pulmonary heart disease, is due to the increase in pulmonary vascular resistance due to chronic lesions of the lung, thorax, or pulmonary artery, pulmonary hypertension, increased right heart load, thereby causing right ventricular hypertrophy, Finally, the development of right heart failure, heart attack. This disease is mainly in the lungs, heart dysfunction, systemic disease. Development from chronic lung chest diseases to pulmonary heart to go through a longer period of time, usually 10 to 20 years. Acute respiratory infections induce a major factor in heart and lung failure.