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Laser probe coagulation of bleeding canine ulcers
G Van Stiegmann1, J H Sun, N W Pearlman
1Department of Surgery, University of Colorado Health Sciences Center, Denver 80262.
Lasers in Surgery and Medicine
|January 1, 1988
Summary
A novel contact laser probe achieved rapid hemostasis for bleeding gastric ulcers in dogs. This effective laser treatment for gastric ulcers offers a precise, safe, and efficient method for controlling acute bleeding.
Area of Science:
- Gastroenterology
- Biomedical Engineering
- Surgical Innovation
Background:
- Acute gastric bleeding poses significant clinical challenges.
- Current endoscopic treatments for bleeding ulcers have limitations.
- Developing precise and effective hemostatic tools is crucial.
Purpose of the Study:
- To evaluate the efficacy of a nonlight-transmitting contact laser probe for controlling acute gastric ulcer bleeding.
- To assess the safety and hemostatic duration of laser probe application in a canine model.
Main Methods:
- A contact laser probe was applied to acutely bleeding gastric ulcers in heparinized dogs.
- Thirty-five ulcers were treated, and ten served as untreated controls.
- Hemostasis, bleeding duration, and tissue injury were monitored.
Main Results:
- Complete hemostasis was achieved in all 35 treated ulcers within a mean of 32 seconds.
- Control ulcers bled for a mean of 11 minutes.
- No perforations or full-thickness injury were observed; a limited coagulation zone (0.2-0.5 mm) was confirmed histologically.
Conclusions:
- The contact laser probe is a safe and effective tool for achieving rapid hemostasis in acute gastric ulcers.
- This laser technology demonstrates potential for clinical application in managing gastrointestinal bleeding.