Current approaches to the surgical management of Crohn's disease in Australia and New Zealand.

Purpose: Given the evolving literature regarding the optimal surgical approach to mitigate post-operative recurrence of Crohn's disease (CD), this survey study aimed to elucidate the practices and preferences of colorectal surgeons in Australia and New Zealand (ANZ) in their surgical management of CD.

Methods: Colorectal surgical consultants and fellows (n = 337) registered with the Colorectal Surgical Society of Australia and New Zealand (CSSANZ) were invited by email in April 2022 to participate in a cross-sectional survey consisting of basic demographics and 12 questions relating to their usual surgical practice and preferred operative strategy.

Results: A total of 135 responses were received (39.9%). Regarding anastomotic configuration, 47% (n = 68) preferred the side-to-side anastomosis (STSA), 19% (n = 28) the end-to-end anastomosis (ETEA), and 15% (n = 21) the Kono S anastomosis. Most respondents preferred to resect at the proximal junction of the abnormal mesentery (75%, n = 97), while radical resection of the mesentery was preferred in 10% (n = 13) and close intestinal resection through abnormal mesentery in 15% (n = 20). The preferred surgical approach was by far laparoscopic (93%, n = 125) with extraction from the midline peri-umbilical port (80%, n = 108).

Conclusion: Amongst participating colorectal surgeons, there was a clear consensus on the approach, where the dominant practice was laparoscopy with a midline peri-umbilical extraction. Similarly, most respondents preferred some degree of mesenteric resection. However, anastomotic configuration and technique were domains of resection in CD lacking unanimity despite clear guidelines, highlighting an area requiring further attention.