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OBJECTIVE To discuss the feasibility, safety, and effectiveness of conventional laparoscopic partial nephrectomy combined with pyelolithotomy for patients with ipsilateral renal tumor and staghorn kidney stone. MATERIALS AND METHODS Retrospective multicentral comparative study. Group "Combo" was presented by patients with the mentioned combined pathology (n=15). Group "Standart" (n=69) formed from common patients who underwent standard lap partial nephrectomy for renal tumor in the absence of kidney stones. Perioperative factors and results were studied and compared. Video presentation of combined surgical technique is available at: https://youtu.be/fAfYJDvGzsU. RESULTS Of all patients, no positive margins, no conversions to open surgery or nephrectomy & any complications Clavien >III were detected. There were no any significant differences between the two groups except for OR time (150 [120; 210] vs 130 [100; 180] min; p=0,001). Differences between indexes of WIT (16,27+/-3,8 vs 15,9+/-4,5 min; p=0,107), EBL (200 [150; 300] vs 200 [150; 300] cc; p=0,981), length of stay (7 [6;9] vs 8[6;9] days; p=0,611), intraop complications (0,00 vs 4,3%; p=0,411) and values of postop Clavien III rate (0,00 vs 4,3%; p=0,411) for "Combo" & "Standart" respectively were comparable as well as oncological outcomes. Stone-free rate for combined procedures reached 93,3%. CONCLUSION conventional laparoscopic partial nephrectomy combined with pyelolithotomy for patients with ipsilateral renal tumor and staghorn kidney stone is safe and efficient alternative to 2-step treatment of this rare disease.

THE PURPOSE OF THE STUDY a retrospective analysis of the results of patients treatment with ureteral strictures by evaluating the effectiveness of various methods of laparoscopic operations. MATERIALS AND METHODS a retrospective analysis of the treatment of 30 patients operated in the Central Hospital of Civil Aviations from 2013 to the present time with strictures of all departments of the ureters, except the pelvic-ureteral segment (LMS), was performed. The study included 18 women and 12 men. The age of patients was 54+/-8.1 years (29-79 years) for men and 51+/-8.5 years (28-74 years) for women. According to the results of x-ray examinations, the length of ureter stricture was determined, after that selected the tactics of surgical treatment. The study included patients who underwent intestinal plastics of the ureter, the operation Boari, ureterocystoanastomosis, ureteroureterostomy. All stages of surgical interventions were performed laparoscopically. RESULTS 23 patients (76.66%) had a smooth postoperative period. A month after the operation, ureteral stents were removed. Attacks of acute pyelonephritis, relapses of the disease were not observed during the follow-up period from 7 months to 3 years. Possible complications are analyzed. In one case, after intestinal plastic surgery of the ureter in the postoperative period, the phenomena of small bowel obstruction were noted, which required surgical treatment in the volume of applying a bypass eunoascendoanastomosis "side by side". In 7 cases, anastomosis strictures were diagnosed in the postoperative period. In the 5 cases, after examination (CT of the urinary tract with contrast, antegrade ureteropyelography), the anastomosis was recognized compensated. CONCLUSION It is shown that all the necessary range of operations can be performed by laparoscopic method while preserving all the advantages of low-trauma access.