Impact assessment of increasing the time of withdrawal of colonoscopy in the detection rate of polyps in our midst

Julio Velásquez, Jorge Espinoza-Ríos, Jorge Huerta-Mercado, José Pinto, Raúl De los Ríos, Alejandro Piscoya, Carlos OR, Arturo Zegarra, Alejandro Bussalleu

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

INTRODUCTION: In 2002, the US Multi-Society Task Force on Colorectal Cancer recommended that the withdrawal phase during colonoscopy should average at least 6-10 min to improve the detecting ratio of polyps. However, these recommendations were based on previous studies with a high colorectal cancer-risk population. The aim of our study is to determine if the implementation of a policy of colonoscopy withdrawal time > or = 6 minutes would be statistically associated with an increase in the colon polyp detection rate. MATERIALS AND METHODS: We retrospectively evaluated the procedural data from all total colonoscopies performed at our general hospital from January 2006 through July 2009. Since January 2008 we implemented the policy of withdrawal time > or = 6 minutes. We calculated the detection rate and compared data from these period with our baseline consisted of the two years previous period in which withdrawal time was not aware. RESULTS: We reviewed procedural data from 2004 colonoscopies performed from January 2006 through July 2009; 1042 from the > or = 6 minutes-withdrawal time implementation period and 962 from the two years previous period. We found 162 patients with at least one polyp detected during the > or = 6 minutes-withdrawal time implementation period whereas 144 patients were detected from our baseline. The polyp detection rate was 15.55% from the period with a withdrawal time of e6 minutes versus 16.17 and 15.84% from each year of our baseline. No significant increase (p = 0.955) in the polyp detection rate was detected between the two comparative groups. CONCLUSION: The implementation of a policy of colonoscopy withdrawal time e6 minutes had no effect on colon polyp detection.

Translated title of the contributionImpact assessment of increasing the time of withdrawal of colonoscopy in the detection rate of polyps in our midst
Original languageSpanish
Pages (from-to)321-325
Number of pages5
JournalRevista de gastroenterología del Perú : órgano oficial de la Sociedad de Gastroenterología del Perú
Volume29
Issue number4
StatePublished - 2009
Externally publishedYes

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