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肺心病是原发病在肺,继发病在心脏,所以称为肺心病。容易引起肺心病的原发病包括支气管、肺疾病:胸廓运动障碍性疾病(如严重脊柱后凸、侧凸、广泛胸膜肥厚粘连)和肺血管疾病等。其中80～90％是阻塞性肺气肿引起的,所以肺心病是肺气肿发展到最后阶段的严重并发症。上述这些原发病久而久之(一般约需10年),可以引起沿着细支气管分布的毛细
Pulmonary heart disease is the primary disease in the lungs, secondary to the disease in the heart, so called pulmonary heart disease. Primary diseases prone to pulmonary heart disease include bronchial and pulmonary diseases: thoracic dyskinesia (eg, severe kyphosis, scoliosis, extensive pleural hypertrophy, and pulmonary vascular disease). Of which 80 to 90% is caused by obstructive pulmonary emphysema, so pulmonary heart disease is a serious complication of emphysema development to the final stage. These long-standing primary disease over time (usually about 10 years), can cause capillary along the bronchioles