Anterior resection syndrome refers to wide spectrum of symptoms which develop post-sphincter preserving rectal resection for rectal cancer.
Pelvic radiotherapy is a known risk factor to develop anterior resection syndrome.
There have been reports that up to 47% of patients who undergo anterior resection for rectal cancer develop anterior resection syndrome.2
Symptoms include but are not limited to:
- increased bowel frequency
- fecal incontinence
- incomplete evacuation
- increased intestinal gas
MRI of the pelvis, including dynamic sequences, is recommended to exclude other causes for altered bowel function.
Treatment and prognosis
In rare cases the symptoms are so severe that colostomy formation is performed.
- 1. Bryant CL, Lunniss PJ, Knowles CH, Thaha MA, Chan CL. Anterior resection syndrome. (2012) The Lancet. Oncology. 13 (9): e403-8. doi:10.1016/S1470-2045(12)70236-X - Pubmed
- 2. Carrillo A, Enríquez-Navascués JM, Rodríguez A, et al. Incidence and characterization of the anterior resection syndrome through the use of the LARS scale (low anterior resection score). Cir Esp. 2016;94(3):137-143. doi:10.1016/j.ciresp.2015.11.005