ABSTRACT
Retrospective investigation, conducted for estimation of perioperative complications, while performing surgical treatment of a renalcell cancer with tumoral thrombi, was presented. In 132 patients the tumoral thrombi spreading is restricted by renal vein and by vena cava inferior (VCI) as well. The patients were operated on, using the "chevron" access in the absence of artificial blood circulation. Perioperative complications rate in the patients in presence of macroscopic tumoral thrombi constitute 56.8%, while tumoral spreading into VCI is trustworthy bigger (Ñ<0.05). Presence of cardiac insufficiency, tumoral invasion of the VCI wall, retrograde spreading of thrombus with the VCI concurrent blood thrombosis, аs well as presence of the indices in accordance to the ECOG scale more than 1 point have constituted unfavorable factors.