title: [Endoscopic removal of papillary tumors of upper urinary tract].
abstract: OBJECTIVE
  To assess the results of organ-sparing endoscopic treatment of patients with tumors of the upper urinary tract (UUT).
  
  
  METHODS
  Twenty four patients underwent percutaneous and ureteropyeloscopic interventions for tumors of the upper urinary tract and were followed up at the Urology Clinic, I.M. Sechenov First MSMU. Retrograde removal of benign tumors of the renal pelvis and ureter (tumors sized from 5 to 35 mm), percutaneous removal of papillary carcinoma of renal pelvis of a solitary kidney, percutaneous removal of papillary carcinoma of renal pelvis of only one functioning kidney and percutaneous removal of papillary carcinoma of the lower calyx of the L-shaped kidney were performed in 21, 1, 1 and 1 patients, respectively. The patients had stage T1 papillary cancer of the upper urinary tract. There were 7 (29.2%) men and 17 (70.8%) women with mean age 64+/-5 years. Electroresection/vaporization was carried out in 18 patients, and 6 patients were treated using Holmium laser.
  
  
  RESULTS
  None of the endoscopic procedures required conversion to open surgery or a more extended surgical operation. There were no recurrences or impaired UUT urinary flow in patients with benign UUT tumors at different points of follow-up. In 3 cases of malignant UUT tumors no recurrences occurred during 12-20 months follow-up.
  
  
  CONCLUSIONS
  and discussion. Nephroureterectomy with resection of the urinary bladder is the standard radical treatment of patients with tumors of the UUT. Technological advances in endoscopic and percutaneous surgery for UUT have allowed for organ-sparing procedures in patients with neoplasms of pelvicalyceal system and ureter. The absolute indications for such organ-sparing operations now include solitary kidney or only one functioning kidney and chronic renal failure. Endoscopic resection of the tumor and renal pelvic wall within healthy tissue, including by holmium laser, with tumor stage not exceeding T1 and followed by trans-fistula chemotherapy can be regarded as an effective treatment for patients with tumors of pelvicalyceal system.
authors.affiliation: Research Institute of Uronephrology and Human Reproductive Health, Department and Clinic of Urology, I.M. Sechenov First MSMU.
authors.forename: G N
authors.initials: GN
authors.lastname: Akopyan
authors.affiliation: Research Institute of Uronephrology and Human Reproductive Health, Department and Clinic of Urology, I.M. Sechenov First MSMU.
authors.forename: Yu G
authors.initials: YG
authors.lastname: Alyaev
authors.affiliation: Research Institute of Uronephrology and Human Reproductive Health, Department and Clinic of Urology, I.M. Sechenov First MSMU.
authors.forename: A Z
authors.initials: AZ
authors.lastname: Vinarov
authors.affiliation: Research Institute of Uronephrology and Human Reproductive Health, Department and Clinic of Urology, I.M. Sechenov First MSMU.
authors.forename: L M
authors.initials: LM
authors.lastname: Rapoport
authors.affiliation: Research Institute of Uronephrology and Human Reproductive Health, Department and Clinic of Urology, I.M. Sechenov First MSMU.
authors.forename: M A
authors.initials: MA
authors.lastname: Gazimiev
authors.affiliation: Research Institute of Uronephrology and Human Reproductive Health, Department and Clinic of Urology, I.M. Sechenov First MSMU.
authors.forename: D G
authors.initials: DG
authors.lastname: Tsarichenko
authors.affiliation: Research Institute of Uronephrology and Human Reproductive Health, Department and Clinic of Urology, I.M. Sechenov First MSMU.
authors.forename: E V
authors.initials: EV
authors.lastname: Shpot
authors.affiliation: Research Institute of Uronephrology and Human Reproductive Health, Department and Clinic of Urology, I.M. Sechenov First MSMU.
authors.forename: N I
authors.initials: NI
authors.lastname: Sorokin
authors.affiliation: Research Institute of Uronephrology and Human Reproductive Health, Department and Clinic of Urology, I.M. Sechenov First MSMU.
authors.forename: A M
authors.initials: AM
authors.lastname: Dymov
authors.affiliation: Research Institute of Uronephrology and Human Reproductive Health, Department and Clinic of Urology, I.M. Sechenov First MSMU.
authors.forename: A M
authors.initials: AM
authors.lastname: Pshikhachev
authors.affiliation: Research Institute of Uronephrology and Human Reproductive Health, Department and Clinic of Urology, I.M. Sechenov First MSMU.
authors.forename: V Yu
authors.initials: VY
authors.lastname: Lekarev
authors.affiliation: Research Institute of Uronephrology and Human Reproductive Health, Department and Clinic of Urology, I.M. Sechenov First MSMU.
authors.forename: G S
authors.initials: GS
authors.lastname: Akopyan
mesh_terms: D000368:Aged; D002291:Carcinoma, Papillary / Q000473:pathology / Q000601:surgery*; D004724:Endoscopy / Q000379:methods; D005260:Female; D006801:Humans; D008297:Male; D000072662:Margins of Excision; D008875:Middle Aged; D009392:Nephrectomy / Q000379:methods; D010386:Pelvic Neoplasms / Q000473:pathology / Q000601:surgery*; D014516:Ureteral Neoplasms / Q000473:pathology / Q000601:surgery*
keywords: endoscopic treatment of upper urinary tract tumors; laser removal of the upper urinary tract tumors; organ-sparing surgery; urothelial neoplasms