Preliminary results of laser tissue welding in extravesical reimplantation of the ureters.
Publication/Presentation Date
2-1-1994
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.
Volume
151
Issue
2
First Page
514
Last Page
517
ISSN
0022-5347
Published In/Presented At
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. The Journal of urology, 151(2), 514–517. https://doi.org/10.1016/s0022-5347(17)35004-8
Disciplines
Medicine and Health Sciences | Pediatrics
PubMedID
8283566
Department(s)
Department of Pediatrics
Document Type
Article