Diagnostic Yield and Therapeutic Impact of Rectal Retroflexion: A Prospective, Single-Blind Study Conducted in Three Centers.
- Author:
Felix TELLEZ-AVILA
1
;
Josue BARAHONA-GARRIDO
;
Sandra GARCIA-OSOGOBIO
;
Gustavo LOPEZ-ARCE
;
Jesus CAMACHO-ESCOBEDO
;
Angela SAUL
;
Salvador HERRERA-GOMEZ
;
Javier ELIZONDO-RIVERA
;
Rafael BARRETO-ZUNIGA
Author Information
1. Endoscopy Department, Instituto Nacional de Ciencias Medicas y Nutricion Salvador Zubiran, Mexico City, Mexico. felixtelleza@gmail.com
- Publication Type:Original Article
- Keywords:
Colonoscopy;
Retroflexion;
Rectum;
Colorectal polyps
- MeSH:
Angiodysplasia;
Colonoscopy;
Female;
Humans;
Polyps;
Prospective Studies*;
Rectum;
Single-Blind Method*;
Ulcer
- From:Clinical Endoscopy
2014;47(1):79-83
- CountryRepublic of Korea
- Language:English
-
Abstract:
BACKGROUND/AIMS: No clear data have been established and validated regarding whether rectal retroflexion has an important and therapeutic impact. The aim of the present study was to evaluate the diagnostic yield and therapeutic impact of rectal retroflexion compared with straight view examination. METHODS: A prospective single-blind study was conducted. Consecutive patients evaluated between October 2011 and April 2012 were included. RESULTS: A total of 934 patients (542 women, 58%) were included. The mean age was 57.4+/-14.8 years. Retroflexion was successful in 917 patients (98.2%). Distinct lesions in the anorectal area were detected in 32 patients (3.4%), of which 10 (1%) were identified only on retroflex view and 22 (2.4%) on both straight and retroflex views. Of the 32 identified lesions, 16 (50%) were polyps, nine (28.1%) were angiodysplasias, six (18.8%) were ulcers, and one (3.1%) was a flat lesion. All 10 patients (1%) in whom lesions were detected only by rectal retroflexion showed a therapeutic impact. CONCLUSIONS: Rectal retroflexion has minimal diagnostic yield and therapeutic impact. However, its low rate of major complications and the possibility of detecting lesions undetectable by straight viewing justify its use.
