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EFFICACY OF BOTULINUM TOXIN TYPE A IN THE TREATMENT OF CHRONIC ANAL FISSURE

Author: Ibrahim Falih Noori
Journal: Basrah Journal of Surgery مجلة البصرة الجراحية ISSN: 16833589 / ONLINE 2409501X Year: 2015 Volume: 21 Issue: 1 Pages: 69-75
Publisher: Basrah University جامعة البصرة

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Abstract

Lateral partial internal sphicterotomy has been the goal standard for the treatment of chronic anal fissure. The main drawback of this approach remains its effect on the anal continence. Intrasphincteric of botulinum toxin seems to be a reliable and safe option resulting in temporary paralysis of the internal sphincter spasm and so promoting the chronic fissure to heal. The aim of this prospective control randomized study was to compare the effectiveness and the outcome of botulinum toxin injection with the lateral internal sphicterotomy in the treatment of the chronic anal fissure. Ninety male patients who have been presented with chronic uncomplicated anal fissure, were randomized to either lateral internal sphincterotomy or intrasphincteric injection of botulnium toxin. Postoperative complications and pain, healing rate of the fissure, anal incontinence and recurrence of the fissure after treatment during six months follow up period were studied and assessed. The healing rate was 95.5% in the surgical group with recurrence noted in only one patient and one patient had a partial permanent incontinence while in the botulnium toxin group the healing rate was 84.4%. Two patients had transient incontinence which improved spontaneously over six months period. Five patients had recurrence within the same follow period. Lateral internal sphicterotomy and botulinum toxin injection both seems to be effective treatment of the chronic anal fissure. Although surgical approach is still the most common and gold standard treatment for the chronic anal fissure, It shows a higher incidence of incontinence and greater morbidity and pain than botulinum toxin injection. We conclude that the use of botulinum toxin to treat chronic anal fissure is safe, simple and effective approach especially in patients older than 50 years or those with risk of anal incontinence despite the higher rate of recurrence which can be minimized by the second session of botulinum toxin injection.

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