Comparison of thermal spread after ureteral ligation with the Laparo-Sonic ultrasonic shears and the Ligasure system.

J Laparoendosc Adv Surg Tech A 2002 Feb;12(1):61-3

Department of General Surgery, Carolinas Medical Center, Charlotte, North Carolina 28232-2861, USA.

Background And Purpose: The extent of lateral spread of tissue injury is important in the success of a primary anastomosis. We compared the injury produced by the Laparo-sonic Coagulation Shears and the Ligasure system.

Materials And Methods: Ureters were harvested from domestic farm pigs and ligated with the Laparo-sonic (N = 13) or Ligasure (N = 9) system. The tissues were then fixed, stained, and examined by two pathologists without knowledge of the type of treatment.

Results: The mean length of thermal damage from the Ligasure was 2.11 mm (range 1.0-4.0 mm) whereas it was 1.92 (range 0.5-4.25 mm) from the Laparo-sonic system. The difference is not statistically significant.

Conclusion: Debridement of as much as 5 mm of each cut end produced by the Laparo-sonic or Ligasure system may be beneficial in reducing stricture and leak.

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Source
http://dx.doi.org/10.1089/109264202753486957DOI Listing
February 2002

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