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the fibrin glue results have been pretty good, I hear. results of usage were reported recently. you might want to check out the american society of colorectalColon cancer Colorectal polyps surgeons at fascrs.org I'd bet they have a summary of the info, maybe from thier annual meeting.
Botulinum Toxin for Anal Fissure
The toxin elaborated by Clostridium botulinum binds to the neuromuscular junction, preventing release of acetylcholine and thereby inducing profound paralysis. Injected locally in appropriate doses, however, this otherwise highly lethal substance has proved quite effective in treating a number of disorders manifested by intense muscle spasm (see "Botulinum Toxin: Potent Poison, Potent Medicine" by Lance L. Simpson).
Chronic anal fissure is a common disorder involving spasm of the internal anal sphincter. The aim of treatment is to reduce the hypertonia, which can be accomplished by lateral internal sphincterotomy. However, that procedure may cause minor but permanent alterations in rectal continence. An alternative approach has been local application of botulinum toxin or nitroglycerin ointment, with a view to effecting a medical sphincterotomy.
Investigators at the Catholic University of Rome have conducted a randomized trial of these medical interventions. Fifty consecutive adult patients with chronic anal fissure were randomly assigned to receive either 20 units of botulinum toxin (as a single injection into the internal anal sphincter) or 0.2% nitroglycerin ointment (as a 6-wk course of twice-daily applications to the anus and anal canal). Patients with acute fissure or in whom fissure was a complication of other medical conditions were excluded.
After two months, the fissure was healed in 24 (96%) of the toxin-treated patients and 15 (60%) of the nitroglycerin recipients (p=.005). Nine treatment failures in the nitroglycerin group and one toxin failure were crossed over to the other therapy, which resulted in healing. There were no complications of botulinum toxin. In contrast, five nitroglycerin-treated patients complained of headaches.
Brisinda G et al: A comparison of injections of botulinum toxin and topical nitroglycerin ointment for the treatment of chronic anal fissure. N Engl J Med 341:65, 1999; Hallett M: One man's poison--clinical application of botulinum toxin (editorial). Ibid:118
COMMENT: The U.S. Food and Drug Administration has approved botulinum toxin A for treatment of strabismus, blepharospasm, and hemifacial spasm. In these conditions, the injections must be repeated because their effects wear off within months. The nice thing about botulinum therapy of chronic anal fissure is that complete healing occurs after only one injection. In this vulnerable area, that sits better with me than even minor surgery.
the fibrin glue results have been pretty good, I hear. results of usage were reported recently. you might want to check out the american society of colorectal surgeons at fascrs.org I'd bet they have a summary of the info, maybe from thier annual meeting.
best of luck to you
if your surgeon is saying this is the worst he's seen, you might want to consider finding another surgeon that has more experience with fistula repair. is there a large teaching hospital in your area? or a colorectal surgeon that 'specializes' in perianal Crohn's disease? those would be your best bet because they would be the ones that have seen and dealt with a lot of complicated fistulas.
good luck, I hope the doc sees some positive changes at your visit tomorrow.