Shamim Qureshi, Shamim Qureshi, Rabia Urooj, Nazish Butt, Mumtaz Maher.
Nitroglycerine ointment for anal fissure.
J Surg Pak Jan ;12(4):185-7.

Objective: To determine long term effectiveness of glyceryl trinitrate (GTN) for treatment of anal fissure and to find out its side effects. Patients &Methods: This study was done on patients who presented with symptoms of anal fissure in colorectal clinic surgical ward 2 JPMC. Total 498 patients were included out of which 237 had acute anal fissure while 261 patients had chronic fissure. All patients received 8 weeks treatment with 0.2% GTN ointment three times daily applied over perianal area. Those patients who developed side effects i.e. headache were offered treatment with 2% diltiazem. Results: After 8 weeks treatment 228 patients of acute anal fissure had complete healing and 9 patients had partial response. In chronic anal fissure, 229 patients completely healed after 8 weeks of treatment while 32 patients were advised further 4 weeks treatment of GTN due to partial healing and out of them 22 patients had complete healing. Thirteen patients had to undergo lateral sphincterotomy. Five patients complained of headache that settled after shifting to treatment with diltiazem ointment. Ten patients developed recurrence of symptoms. Conclusions: GTN proved to be good first line treatment for most of patients with anal fissure. Small group of patients experience recurrence of symptoms and most of them respond to prolong duration of treatment.

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