1. Tissue Effects of Neodymium:YAG Laser Photo-Radiation of Canine Ureters
- Author
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John A. Dixon, Randall G. Lee, and Joseph A. Smith
- Subjects
medicine.medical_specialty ,Gas laser ,Urinary system ,Urology ,Urinary Bladder ,Entire ureter ,Perforation (oil well) ,chemistry.chemical_element ,Radiation ,Neodymium ,law.invention ,Dogs ,Ureter ,Optics ,law ,Animals ,Medicine ,Ureteral Neoplasms ,business.industry ,General Medicine ,Laser ,Surgery ,surgical procedures, operative ,medicine.anatomical_structure ,Oncology ,chemistry ,Neodymium-YAG laser ,Female ,Laser Therapy ,sense organs ,business - Abstract
Although the entire ureter and renal collecting system are accessible for endoscopic treatment with a neodymium:YAG, (Nd:YAG) laser, specifications for safe laser application within the ureter are not established. After various doses of Nd:YAG laser energy were delivered, the midureters of six mongrel dogs were studied to determine tissue effects. Doses which are appropriate within the bladder (35 watts X 2 seconds) resulted in perforation and urine leak from the ureters. Higher doses (60-65 watts) of short duration were tolerated without problems and nonstrictured healing ensued. Further studies are necessary before Nd:YAG laser treatment of mid-ureteral tumors is recommended.
- Published
- 1985
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