Clinical observations were made regarding the effectiveness of minimally invasive interventions in the treatment of complications after laparoscopic partial nephrectomy in solitary kidney, due to the presence of a tumor. On the first day after the operation, abundant bleeding from the stump of the superior segmental renal artery was noted; this was stopped by selective embolization. On the 7th day after the operation, a urinary fistula was revealed, which developed because of violation of the integrity of the pyelocaliceal kidney system. After stenting of the kidney was performed, urine excretion in the retroperitoneal drainage was stopped.