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慢性肺心病(简称肺心病)主要是由于慢性广泛性支气管——肺疾病及肺血管,胸廓病变所致肺动脉高压,右心负荷加重引起右心肥厚与扩大。而肺动脉高压以及单纯性右室扩张的存在可能是早期右心功能改变的佐证。早年对于肺心病的诊断主要依靠临床出现右心衰竭体征或胸部X线显示右室扩大。
Chronic pulmonary heart disease (referred to as pulmonary heart disease) is mainly due to chronic extensive bronchopulmonary disease and pulmonary vascular, thoracic lesions caused by pulmonary hypertension, right heart load caused by right ventricular hypertrophy and enlargement. The existence of pulmonary hypertension and simple right ventricular dilatation may be evidence of early changes in right heart function. Early diagnosis of pulmonary heart disease mainly depends on the clinical signs of right heart failure or chest X-ray showed right ventricular enlargement.