Hemorrhagic cystitis is a debilitating complication of radiation therapy for pelvic malignancy. Forty-two such patients with intractable hematuria underwent endoscopic Nd:YAG laser coagulation under local anesthesia between January 1990 and July 1992. The laser power was kept at 5 30 W and the pulse
Tissue effects of neodymium: Yag laser photo-radiation of canine ureters
β Scribed by Joseph A. Smith JR.; Randall G. Lee; John A. Dixon
- Publisher
- John Wiley and Sons
- Year
- 1984
- Tongue
- English
- Weight
- 886 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0022-4790
No coin nor oath required. For personal study only.
β¦ Synopsis
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.
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