title: Secure reconstruction technique after partial nephrectomy irrespective of tumor size and location.
abstract: BACKGROUND
  Nephron-sparing surgery for large renal masses is not considered a safe procedure because of high complication rate. We present our experience using expanded polytetrafluoroethylene (Gore-Tex) and Hem-O-Lok (Weck Clip) as hemostatic agents during open partial nephrectomy (OPN) to perform nephron-sparing surgery for large renal masses.
  
  
  METHODS
  Sixty patients underwent OPN for suspicious renal cell carcinomas. Thirty-four patients with tumors < 2.5 cm in size underwent OPN with Gore-Tex alone (group 1). Clinical data from a computerized database were reviewed and compared to a contemporary group of 26 patients with tumors >or= 2.5 cm in size who underwent OPN with Gore-Tex and Hem-O-Lok (group 2).
  
  
  RESULTS
  The mean patient age was 53 years (range, 35-85 years), and the mean duration of follow-up was 41.8 months (range, 6-56 months). The mean cold ischemic times were 24.0 minutes (range, 12-37 minutes) and 35.3 minutes (range, 18-65 minutes) respectively in group 1 and 2. The tumor sizes in groups 1 and 2 were 1.7 +/- 0.4 cm and 4.74 +/- 2.75 cm, respectively. No major complications, such as urine leakage or delayed bleeding, were noted in either group.
  
  
  CONCLUSIONS
  Nephron-sparing surgery using Gore-Tex alone or a Gore-Tex and Hem-O-Lok combination was safe without high-priced hemostatic agents because the tensile strength was sufficient to maintain firmness in the repaired parenchyma. In addition, the procedure is easy to perform and takes less time to complete. Furthermore, major complications, recurrence, and impaired renal function did not occur with this procedure.
authors.affiliation: Department of Urology, College of Medicine, Pochon CHA University, Bundang CHA Hospital, Sungnam, Korea. dsparkmd@cha.ac.kr
authors.forename: Dong Soo
authors.initials: DS
authors.lastname: Park
authors.forename: Woong Ki
authors.initials: WK
authors.lastname: Jang
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D018207:Angiomyolipoma / Q000601:surgery*; D002292:Carcinoma, Renal Cell / Q000601:surgery*; D006488:Hemostasis, Surgical / Q000295:instrumentation*; D006801:Humans; D007680:Kidney Neoplasms / Q000601:surgery*; D008279:Magnetic Resonance Imaging; D009392:Nephrectomy / Q000379:methods*; D009399:Nephrons / Q000601:surgery; D011138:Polytetrafluoroethylene / Q000627:therapeutic use*; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome
chemical_list: D011138:Polytetrafluoroethylene