Background Traditionally proctectomy has been the treatment for severe, com
plex fistula iri ano from Crohn's disease. However, based on the success of
rectal advancement flaps in Crohn's disease, circumferential transanal sle
eve advancement flaps (TSAFs) were proposed for this subgroup of patients w
ith severe fistula.
Methods From 1991 to 1995, 13 patients (12 women) with severe perianal Croh
n's disease and multiple fistula tracts underwent a TSAF procedure. Data we
re collected retrospectively using a standard data sheet.
Results There were no postoperative deaths or major morbidity. One year aft
er surgery, the fistula had healed in eight of 13 patients (with three requ
iring additional surgery before healing). Of patients in whom the procedure
failed, three underwent proctectomy for progression of disease and the oth
er two had recurrence of a rectovaginal fistula 6 and 8 months: after surge
ry. Of six variables evaluated (previous procedure, steroid use, steroid do
sage, associated Crohn's disease, associated procedures and diverting stoma
), only associated procedures were significantly related to a successful ou
tcome (P = 0.008).
Conclusion Some patients with severe perianal Crohn's fistula and a relativ
ely normal rectum can be offered TSAFs. Even with successful outcome in eig
ht of 13 patients, this may still be a viable option if the only alternativ
e would be total proctocolectomy and a permanent stoma.