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The clinical investigation of the pulmonary arterial pressure in stable stage copd patients with cor pulmonale


, : The clinical investigation of the pulmonary arterial pressure in stable stage copd patients with cor pulmonale. Zhonghua Jiehe He Huxi Zazhi 14(6): 353-355

We measured pulmonary arterial pressure with Swan-Ganz catheters both at rest and after exercise in 21 patients with stable-stage chronic obstructive pulmonary disease (COPD). The results were as follows: pulmonary arterial mean pressure cases (PAPm) increased at rest in 11 cases (PAPm > 2.66kPa); in 6 cases PAPm was normal at rest (PAPm < 2.66kPa) but increased above the normal level after exercise (PAPm > 3.99kPa); in 4 cases PAPm was within the normal limit both at rest and after exercise. These results suggest that (1) pulmonary arterial pressure in some patients with COPD and corpulmonale can return to the normal level; (2) exercise load test can detect early-stage or latent pulmonary hypertension; (3) attension should be paid to the patient selection when long-term vaodilators are administered.

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