Published online Aug 14, 2013. doi: 10.3748/wjg.v19.i30.4944
Revised: April 19, 2013
Accepted: May 7, 2013
Published online: August 14, 2013
Core tip: In a prospective study conducted from 2006 to 2009, 38 patients underwent 4% formalin application under perianal anesthetic infiltration for hemorrhagic radiation proctopathy. Based on the rectal-telangiectasia density classification, eight (21.1%) patients had grade I proctitis, 23 (60.5%) patients had grade II proctitis, and seven (18.4%) patients had grade III proctitis. A piece of gauze soaked with 4% formalin was applied to the entire diseased rectal mucosa and remained for 4 min under perianal anesthetic infiltration. Twenty patients (58.8%) reported complete cure, eight patients (23.5%) reported significant improvement, and six patients (17.7%) reported no change. Application of 4% formalin under perianal anesthetic infiltration in patients who received external radial radiation therapy for prostate cancer was simple, safe, and effective.