title: [Clinical application of subcutaneous nephrovesical bypass system].
abstract: OBJECTIVE
  To evaluated the subcutaneous nephrovesical bypass carried out in patients with ureter obstruction and improve the quality of life of patients with palliative definitive percutaneous nephrostomy.
  
  
  METHODS
  A total of 36 patients with advanced cancer receiving 45 subcutaneous nephrovesical bypass tubes were included in the study. Uronephrosis ranged from 1.8-5.2 cm, serum creatinine 73-760 micromol/L,and glomerular filtration rate (GFR) 19-26 mL/min. The obstruction was proved to be complete by retrograde pyelography. The nephrovesical stents were inserted utilizing percutaneous access to both of the kidney and bladder,and a subcutaneous tunnel was created between the two sites. B-ultrasound, KUB (kidneys, ureters, and bladder), serum creatinine test and GFR were carried out 72 hours after operation.
  
  
  RESULTS
  Urinary diversion operations were successful in the 36 patients, uronephrosis ranged from 0-1.8 cm, all stents were in position, serum creatinine 72-173 micromol/L, GFR 25-40 mL/min after the operation, and the bypass functioned well in 45 stents for 67 to 481 days of the follow-up.
  
  
  CONCLUSIONS
  Subcutaneous nephrovesical bypass can protect renal function of patients suffering from ureteral obstruction by simple and minimum invasive operation; it can also reduce complications caused by percutaneous nephrostomy and improve the patient's life quality.
authors: Department of Urology, Peking University People's Hospital, Beijing 100044, China. lljun@yeah.net
authors: Jun
authors: J
authors: Li
authors: Xiao-feng
authors: XF
authors: Wang
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009403:Nephrostomy, Percutaneous / Q000379:methods*; D015607:Stents; D014517:Ureteral Obstruction / Q000601:surgery*; D013520:Urologic Surgical Procedures / Q000379:methods