Treatment of anal fissure: a survey of surgical practice in Australia and New Zealand.

[AIM] The aim was to determine whether or not the clinical management of anal fissure in Australia and New Zealand accords with published guidelines.

[METHODS] A comprehensive survey based on common clinical scenarios was distributed to 206 colorectal surgeons in Australia and New Zealand.

[RESULTS] The response rate was 44% (91 surgeons). For 19 topic areas, only seven (37%) reached consensus (defined as > 70% majority opinion). Of these, six (86%) agreed with guideline recommendations. Twelve (63%) topic areas demonstrated community equipoise (defined as less than or equal to 70% majority opinion), of which five (42%) agreed with guideline recommendations and seven (58%) disagreed with guidelines. Of the seven topics that disagreed with guidelines, three were based on moderate quality evidence (first line management of acute anal fissure in a young patient, fissure healing and faecal incontinence rates following anocutaneous flap) and four were based on low quality evidence (length of sphincter division during a lateral sphincterotomy in women, management of chronic low-pressure anal fissures postpartum, fissure healing rate following anoplasty with botulinum toxin or sphincterotomy and faecal incontinence rates following repeat sphincterotomy for recurrence). Consensus and/or agreement with guidelines were more prevalent in management when medical therapy failed.

[CONCLUSION] While areas of consensus mostly agreed with guideline recommendations, there remain many areas of community equipoise which warrant further research.