MORPHOFUNCTIONAL STATE OF LUNGS AT HEMIHEPATECTOMY AGAINST V.AZYGOS LIGATION

The ligation of unpaired vein causes rather considerable rising of pressure in small circle of blood circulation and depression of pulmonary arterial and pulmonary tissue blood flows compared to that at usual hemihepatectomy. Moreover, the diameters of terminal arteriole of lungs, precapillaries, capillaries, post-capillaries and venules were also larger in comparison with that at resection of half of liver without ligation of unpaired vein. In an experiment on dogs, the development of hepatopulmonary syndrome at intrahepatic portal hypertension caused by hemihepatectomy, against ligation of v. azygos main portacaval anastomosis is investigated.