Preliminary results of laser tissue welding in extravesical reimplantation of the ureters

A. J. Kirsch, G. E. Dean, M. C. Oz, S. K. Libutti, M. R. Treat, R. Nowygrod, T. W. Hensle

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

One exciting potential use of laparoscopic technology is the extravesical reimplantation of the ureters. We have assessed the efficacy of laser- activated fibrinogen solder to close vesical muscle flaps over submucosal ureters (Lich-Gregoir technique) in a canine model. Four dogs were subjected to unilateral flap closures via a protein solder (indocyanine green and fibrinogen) applied to the bladder serosa and exposed to 808 nm. continuous wave diode laser energy. Contralateral reimplantation was performed using 4- zero vicryl muscle flap closures (controls). At 7, 14 and 28 days postoperatively, intravenous pyelograms confirmed bilateral ureteral patency. At intravesical pressures above 100 cm. H2O, there was no evidence of wound disruption in either group. Nondisrupted wound closures were sectioned and strained until ultimate breakage to determine tensile strength. At each study interval the laser-welded closures withstood greater stress than the controls. Although these data represent single tissue samples and are not amenable to statistical analysis, laser-welded closures appeared to be stronger at each study interval. In conclusion, laser-welded vesical wound closures appear at least as strong as suture closures in the canine model.

Original languageEnglish (US)
Pages (from-to)514-517
Number of pages4
JournalJournal of Urology
Volume151
Issue number2
StatePublished - 1994
Externally publishedYes

Fingerprint

Welding
Replantation
Ureter
Lasers
Urinary Bladder
Fibrinogen
Canidae
Wounds and Injuries
Polyglactin 910
Serous Membrane
Muscles
Semiconductor Lasers
Indocyanine Green
Urography
Tensile Strength
Sutures
Dogs
Technology
Pressure
Proteins

Keywords

  • laparoscopy
  • lasers
  • replantation
  • ureter

ASJC Scopus subject areas

  • Urology

Cite this

Kirsch, A. J., Dean, G. E., Oz, M. C., Libutti, S. K., Treat, M. R., Nowygrod, R., & Hensle, T. W. (1994). Preliminary results of laser tissue welding in extravesical reimplantation of the ureters. Journal of Urology, 151(2), 514-517.

Preliminary results of laser tissue welding in extravesical reimplantation of the ureters. / Kirsch, A. J.; Dean, G. E.; Oz, M. C.; Libutti, S. K.; Treat, M. R.; Nowygrod, R.; Hensle, T. W.

In: Journal of Urology, Vol. 151, No. 2, 1994, p. 514-517.

Research output: Contribution to journalArticle

Kirsch, AJ, Dean, GE, Oz, MC, Libutti, SK, Treat, MR, Nowygrod, R & Hensle, TW 1994, 'Preliminary results of laser tissue welding in extravesical reimplantation of the ureters', Journal of Urology, vol. 151, no. 2, pp. 514-517.
Kirsch AJ, Dean GE, Oz MC, Libutti SK, Treat MR, Nowygrod R et al. Preliminary results of laser tissue welding in extravesical reimplantation of the ureters. Journal of Urology. 1994;151(2):514-517.
Kirsch, A. J. ; Dean, G. E. ; Oz, M. C. ; Libutti, S. K. ; Treat, M. R. ; Nowygrod, R. ; Hensle, T. W. / Preliminary results of laser tissue welding in extravesical reimplantation of the ureters. In: Journal of Urology. 1994 ; Vol. 151, No. 2. pp. 514-517.
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