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肺脏和心脏是胸腔内两大重要器官，肺脏又与心脏血液动力学关系至为密切，两者相互影响，所以某些呼吸系统疾病往往能引起心脏的一系列生理功能及病理改变，在临床上可发生心脏病的征象及心功能不全。l慢性支气管炎及心脏病的表现慢性支气管炎发展为肺心病需较长时间以6至10年
The lungs and heart are the two important organs in the chest. The lungs are closely related to the hemodynamics of the heart. Both of them affect each other. Therefore, some respiratory diseases often cause a series of physiological functions and pathological changes in the heart. Clinically Signs of heart disease and cardiac insufficiency may occur. Chronic bronchitis and heart disease performance Chronic bronchitis develops pulmonary heart disease takes a long time to 6 to 10 years