title: Closing the tract of mini-percutaneous nephrolithotomy with gelatine matrix hemostatic sealant can replace nephrostomy tube placement.
abstract: OBJECTIVE
  To investigate the outcomes using gelatine matrix hemostatic sealant to close the tract after mini-percutaneous nephrolithotomy (mini-PCNL), resulting in a tubeless setting.
  
  
  METHODS
  After complete stone removal after mini-PCNL, a double-J ureteral stent was placed in an antegrade manner. After withdrawing the 17F Amplatz sheet from the collecting system under direct vision without irrigation, the urothelium collapsed. While retracting the sheet further, the gelatine matrix hemostatic sealant was injected. The skin incision was closed with glue. An ultrasound examination was performed on the first postoperative day to exclude the presence of urine extravasation.
  
  
  RESULTS
  Mini-PCNL was performed in 11 patients, either as a primary, small stone, single-access procedure or as a second-look mini-PCNL because of small residual fragments after extracorporeal shock wave lithotripsy. The time to seal the mini-PCNL tract through the kidney parenchyma was 2 to 5 minutes. The mean operative time was 79 minutes. In the first 5 cases, intravenous urography was performed in addition to ultrasonography and demonstrated an intact collecting system. The subsequent procedures demonstrated similar findings, with the exception of 1 case of temporary paravasation. In all other patients, the catheter was removed on the first postoperative day. Ten of 11 patients had an uneventful follow-up until removal of the double-J catheter. No major complications were observed.
  
  
  CONCLUSIONS
  Closing the tract of the mini-PCNL with gelatine matrix hemostatic sealant is a safe and fast alternative and provides the option of discharging the patient in good condition without the commonly used nephrostomy tube.
authors.affiliation: Department of Urology, University of Tuebingen, Tuebingen, Germany. udo.nagele@med.uni-tuebingen.de
authors.forename: Udo
authors.initials: U
authors.lastname: Nagele
authors.forename: David
authors.initials: D
authors.lastname: Schilling
authors.forename: Aristotelis G
authors.initials: AG
authors.lastname: Anastasiadis
authors.forename: Stefan
authors.initials: S
authors.lastname: Corvin
authors.forename: Jörg
authors.initials: J
authors.lastname: Seibold
authors.forename: Markus
authors.initials: M
authors.lastname: Kuczyk
authors.forename: Arnulf
authors.initials: A
authors.lastname: Stenzl
authors.forename: Karl-Dietrich
authors.initials: KD
authors.lastname: Sievert
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005780:Gelatin; D006490:Hemostatics; D006801:Humans; D007669:Kidney Calculi / Q000601:surgery*; D008875:Middle Aged; D009403:Nephrostomy, Percutaneous / Q000295:instrumentation / Q000379:methods*; D012189:Retrospective Studies; D014014:Tissue Adhesives
chemical_list: D006490:Hemostatics; D014014:Tissue Adhesives; D005780:Gelatin