Sphincter-sparing intersphincteric rectal resection as an alternative to proctectomy in long-standing fistulizing and stenotic Crohn's proctitis?

Purpose: Long-standing fistulizing and stenotic proctitis (LFSP) in Crohn's disease (CD) indicates the end stage of the disease. Definitive diversion such as proctectomy is considered to be the only surgical option. The impact of intersphincteric sphincter-sparing anterior rectal resection (IAR) as an alternative to proctectomy is unclear. The aim of this study was to evaluate feasibility, morbidity, outcome, and quality of life (QL) in patients with LFSP undergoing intended IAR.

Patients And Methods: Out of a single institution database, 15 patients with LFSP intended for surgery from 856 patients with CD were selected for follow-up analyses.

Results: In 12/15 cases, IAR was carried out while 3/15 patients underwent primary proctectomy due to malignancy (n = 2) or due to patient's wish (n = 1). In one case, IAR revealed unexpected malignancy, which led to secondary proctectomy. In patients with IAR, complete healing of fistulas and stenosis was observed in 46% (n = 5) while 36% (n = 4) of patients showed relapse of fistula and 18% (n = 2) developed restenosis. Ileostomy closure was performed in seven patients from which six patients remained stoma free. QL and fecal incontinence measured by standardized scoring systems were unchanged while stool frequency was reduced after IAR in patients with ileostomy closure. The rate of malignancy in this cohort was 20% (n = 3).

Conclusion: LFSP in CD was associated with 20% of malignant transformation. Although IAR fails to improve QL, it is a suitable procedure for the treatment of fistulas and stenosis associated with acceptable healing rates and can avoid a permanent stoma.