Pulmonary heart disease in the elderly

Chronic pulmonary heart disease is caused by chronic changes in lung tissue, pulmonary arterial blood vessels, or thoracic structures, resulting in abnormal pulmonary tissue structure and function, resulting in increased pulmonary vascular resistance and increased pulmonary arterial pressure, which expands and enlarges the right heart with or without the right heart Heart failure. The vast majority of patients with pulmonary heart disease in China occur on the basis of chronic bronchitis or emphysema.