Objective To observe the changes of pulmonary circulation and the content of endothelium in venous blood in 160 cases of senileemphysema and 70 cases of normal senium.
目的观察160例老年性肺气肿病人及70例正常老年人肺循环和外周血内皮素的变化情况。
2
Objective To discuss the clinic features of chronic obstructive pulmonary emphysema and spontaneous pneumothorax in senile patients.