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  • Title: Transurethral balloon laser prostatectomy in the canine: medium-term, follow-up results.
    Author: Suzuki T, Kurokawa K, Suzuki K, Yamanaka H.
    Journal: Lasers Surg Med; 1995; 17(4):358-63. PubMed ID: 8684238.
    Abstract:
    BACKGROUND AND OBJECTIVE: To demonstrate surgical complications in transurethral balloon laser prostatectomy by medium-term, follow-up observation. STUDY DESIGN/MATERIALS AND METHODS: Three dogs were treated with transurethral laser irradiation using 15 watts for 20 minutes at 60 degrees C at a 5 mm depth of the prostate, one dog was for 5 minutes with same parameters, and one dog was with only laser balloon probe as a control. All animals were followed for 24 weeks. RESULTS: A large cavity in the prostatic urethra was formed in laser-treated animals 4 weeks later, whereas the cavity in the balloon-treated animals was not shown. Cavity volume did not significantly change for 6 months, and there was no bladder neck stricture or urethral stenosis observed in any case. An increase in collagen fibers in the periurethral tissue was barely observed by Mallory staining. CONCLUSION: The risk of bladder neck stricture and urethral stenosis was estimated to be low for transurethral balloon laser prostatectomy.
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