Abstract
Objective: To evaluate the efficacy of lateral internal sphincterotomy in fissure in-ano. Design: This study is a prospective clinicaltrial. Place a n d Duration: It was conducted initially at D.H.Q./ Allied Hospital (PMC) Faisalabad and then other centers from November 2001to onward for the period of six years. Patients a n d M e t h o d s : 140 patients, in urgency due to sever pain, non-compliance to conservative andpharmacological management, or their preference were treated by lateral internal sphincterotomy. The patients were followed up at 1 st to 12thweeks. The extent of improvement in presenting symptoms and complications were noted on questionnaires. Results: Lateral internalsphincterotomy relieved 140 (100%) patients. Transient incontinence of flatus was present in 64.3%, at 1st week that was resolved at 8-12thweeks. There was no recurrence in other complications included infection 7.1%, abscess 7.1% and anesthesia related problems in 14.2 %.C o n c l u s i o n : Lateral internal Sphincterotomy may be regarded as "The Gold Standard"
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