| In vitro comparison of thulium-holmium-chromium: YAG and argon ion lasers for welding of biliary tissue. | |
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MedLine Citation:
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PMID: 2733534 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Laser welding offers several potential advantages over suture closure, including improved healing, lack of a nidus for stone formation, and greater speed and ease. We examined in vitro gallbladder cystic duct welds created by two different systems, the thulmium-holmium-chromium (THC):YAG (2,150 nm) and argon ion (488-514 nm) lasers, in an effort to define suitable parameters for tissue fusion. Mean bursting pressures for argon welds were 95 mm Hg at 1.5 W CW and 26 mm Hg at 1.5 W, 50 msec chopped delivery. For the THC:YAG laser, the mean bursting pressure for welds created with 300 mJ pulses was 45 mm Hg. Full-thickness tissue fusion and limited collateral thermal damage were observed histologically for both the CW argon and pulsed THC:YAG welds. Examination of the suggested mechanisms of tissue fusion for these photothermal lasers suggests that increased duration of tissue heating at the appropriate temperature results in more extensive collagen crosslinking and a stronger weld. |
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Authors:
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M C Oz; L S Bass; H W Popp; R S Chuck; J P Johnson; S L Trokel; M R Treat |
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Publication Detail:
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Type: Comparative Study; In Vitro; Journal Article; Research Support, U.S. Gov't, P.H.S. |
Journal Detail:
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Title: Lasers in surgery and medicine Volume: 9 ISSN: 0196-8092 ISO Abbreviation: Lasers Surg Med Publication Date: 1989 |
Date Detail:
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Created Date: 1989-07-27 Completed Date: 1989-07-27 Revised Date: 2007-11-15 |
Medline Journal Info:
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Nlm Unique ID: 8007168 Medline TA: Lasers Surg Med Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 248-53 Citation Subset: IM |
Affiliation:
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Department of Surgery, College of Physicians and Surgeons, Columbia University, New York, New York. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Cystic Duct / injuries, surgery* Dogs Gallbladder / surgery* Laser Therapy / methods* Spectrophotometry, Infrared |
| Grant Support | |
ID/Acronym/Agency:
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5T35HLO 7616-09/HL/NHLBI NIH HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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