Tissue injury of Injection Gold Probe

Background: The Injection Gold Probe, which incorporates an injection needle and a bipolar electrocoagulation probe, potentially offers better anchoring of the probe for electrocoagulation. This study compares the tissue injury caused by the Injection Gold Probe with or without protrusion of the nee...

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Bibliographic Details
Published in:Gastrointestinal endoscopy 1998-09, Vol.48 (3), p.291-295
Main Authors: Chan, Lik-Yuen, Sung, Joseph J.Y., Chan, Francis K.L., To, Ka-Gai, Lau, James Y.W., Chung, S.C.Sydney
Format: Article
Language:English
Subjects:
Analysis of Variance
Animals
Biological and medical sciences
Culture Techniques
Disease Models, Animal
Electrocoagulation - adverse effects
Electrocoagulation - instrumentation
Gold - administration & dosage
Gold - adverse effects
Injections, Intralesional - adverse effects
Injections, Intralesional - methods
Injury Severity Score
Medical sciences
Needles
Stomach - injuries
Stomach - pathology
Stomach - surgery
Surgery (general aspects). Transplantations, organ and tissue grafts. Graft diseases
Swine
Technology. Biomaterials. Equipments
Tropical medicine
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Summary:Background: The Injection Gold Probe, which incorporates an injection needle and a bipolar electrocoagulation probe, potentially offers better anchoring of the probe for electrocoagulation. This study compares the tissue injury caused by the Injection Gold Probe with or without protrusion of the needle. Methods: A 10F Injection Gold Probe was applied perpendicularly on the antrum of porcine stomach. At each site of testing, one pulse of treatment at 12 W was given for 10 seconds. The extent of tissue injury was studied under different forces of application (light touch or maximal force) and different probe conditions (needle-in, needle-out, needle-out plus 1 mL saline solution injection). Each maneuver was repeated 8 times. The depth and width of tissue injury were assessed histologically by a pathologist blinded to the treatment. Results: The depth and width of tissue injury did not differ significantly with needle-in, needle-out, or needle-out plus 1 mL saline solution injection on both light touch. But the tissue injury was significantly deeper and wider with maximal force applications than with light touch under the same probe condition. Conclusion: The extent of tissue injury inflicted by electrocoagulation using the Injection Gold Probe is not affected by the position of the injection needle.
ISSN:0016-5107
1097-6779
DOI:10.1016/S0016-5107(98)70194-4