The management of chronic anal fissure has received renewed interest and has been re-evaluated over the past 20 years. The use of botulinum toxin seems to be a promising and safe approach, particularly in patients at high risk for incontinence. A recent meta-analysis investigated the efficacy of botulinum toxin injection compared with lateral internal sphincterotomy for the management of this condition.
- Giuseppe Brisinda
- Serafino Vanella