[Mechanisms of impairment of gas exchange and hemodynamics following pneumonectomy in patients with lung cancer]. / Mekhanizmy rasstroistv gazoobmena i gemodinamiki posle pnevmonéktomiu bol'nykh rakom legkogo.

A correlation analysis of basic indexes of gas exchange and hemodynamics observed on day 4 postpneumonectomy was carried out in 56 patients. Factors accounting for relevant dysfunction were studied. Patterns of postoperative changes in basic parameters were established. Respiratory insufficiency was due to ventilation-perfusion balance derangement caused by obstruction and lung hypertension, and compromised pulmonary blood flow in a single lung because of decreased cardiac output.