Contact neodymium: YAG laser surgery in gastroenterology |
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Authors: | Stephen N. Joffe |
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Affiliation: | (1) Department of Surgery, University of Cincinnati Medical Center, 231 Bethesda Avenue, M. L. 558, 45267-9558 Cincinnati, OH, USA |
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Abstract: | Summary Eighty-eight patients have been successfully treated endoscopically without complications using contact neodymium yttrium aluminum garnet: (YAG) laser probes (endoprobes) for tumors and bleeding and during open surgery (laser scalpel) to perform hepatic and pancreatic resections. The contact probes, made from a synthetic sapphire crystal with its optical properties, geometric design, thermal conductivity, and high melting temperature (2030 °C), have proven to be more effective than the current conventional noncontact method of delivering laser energy through a quartz fiber. Advantages include greater precision, sterility, avoidance of the tip melting, and lower neodymium: YAG laser energy required, resulting in reduced tissue damage. The configuration of the probes allows coagulation, cutting, or vaporization, depending on the clinical condition being treated. |
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Keywords: | Bleeding Contact Laser Tumors Ulcer YAG |
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