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  • Title: Evaluation of the Efficacy and Safety of Laser versus Cold Knife Urethrotomy in the Management of Patients with Urethral Strictures: A Systematic Review and Meta-Analysis of Randomized Clinical Trials.
    Author: Torres Castellanos L, Moreno Bencardino MC, Bravo-Balado A, García Mayorga CA, Vargas Manrique I, Fernández N.
    Journal: Urol Int; 2017; 99(4):453-459. PubMed ID: 28697506.
    Abstract:
    INTRODUCTION: Urethral strictures generate great morbidity. Two procedures have been described for their management - laser and cold knife techniques - which are still widely used. We aim to assess the safety and efficacy of laser versus cold knife urethrotomy. MATERIALS AND METHODS: We conducted a systematic search of the literature using MEDLINE, EMBASE, LILACS and Cochrane databases and gray literature. Primary outcomes were urethral stricture recurrence, time-to-recurrence and complication rate. Secondary outcomes were quality of life and maximum urinary flow rate (Qmax). Data analysis was obtained using Review Manager 5.2. RESULTS: Out of 137 publications, 4 articles were included in the meta-analysis. At 3 months, the recurrence rate was similar in both groups (0.55, 95% CI 0.18-1.66), but at 6 and 12 months, it was significantly lower in the laser urethrotomy group (0.39, 95% CI 0.19-0.81 and 0.44, 95% CI 0.26-0.75). The analysis of Qmax at 6 months post-intervention suggested a greater improvement in the laser urethrotomy group. A qualitative analysis showed that complications in both procedures were minor and infrequent. CONCLUSIONS: Laser urethrotomy has a lower recurrence rate at 6 and 12 months compared to cold knife urethrotomy. Complications in both procedures are minor and infrequent. Results should be interpreted cautiously, since they were evaluated only for a short term.
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