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Updated: Aug 19, 2026

Assessment of Pulmonary Capillary Blood Volume, Membrane Diffusing Capacity, and Intrapulmonary Arteriovenous Anastomoses During Exercise
Published on: February 20, 2017
[Relationship between left cardiac function and oxygen transport of cor pulmonale during acute attack at high
Objective:
Relationship between left cardiac function and oxygen transport in the patients with cor pulmonale during acute attack at high altitude was studied to benefit prevention and treatment of cor pulmonale.
Method:
20 cases were divided into 16 as a surviving group and 4 as a death group. CO was determined by Swan-Ganz catheter from internal carotid vein to pulmonary artery directly.
Result:
(1) CI in the patients decreased (2.9 +/- 0.4 L.min-1.m-2). mPAP (4.9 +/- 1.3 kPa) and PAWP (1.5 +/- 0.8 kPa) increased. LVSWI (35 +/- 11 g.cm-1.min-1) dropped. (2) above Indicies in surviving group improved after comprehensive treatment. CI and LVSWI increased. But LVSWI in death group continued to decline. mPAP and PAWP were not changed; (3) There was significant corelation between LVSVI and DO2(r = 0.4318, P < 0.05).
Conclusion:
LVSWI of cor pulmonale could affect DO2 level directly and closely relate to prognosis.
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