Impact of the method of internal opening closure of anal fistula on outcomes after laser fistula coagulation. Preliminary results of randomized clinical trial

AIM: to estimate the outcomes after fistula laser coagulation for transsphincteric anal fistulas. PATIENTS AND METHODS: a prospective randomized single-center study included 42 patients with fistulas, 36 (85.7%) of them had follow-up > 3 months. Nineteen were group thermocoagulation track (diode 1560 nm) combined ligation intersphincteric (LC + LIFT). Seventeen closure internal opening by advancement flap AF). Mean period was 6.5 Perioperatively (before surgery, 1 and 2 months surgery), underwent ultrasound assess healing early detection recurrence. RESULTS: no intraoperative postoperative complications occurred. In LC LIFT group, rate 89,5% (17/19 patients), in AF — 64.7% (11/17patients). Endorectal confirmed or No significant factors affecting recurrence identified both groups. CONCLUSION: treatment fistulas showed better results compared technique. However, further recruitment into groups is required evaluation late results.