[增加结肠镜检查退镜时间对我院息肉检出率的影响评估]

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

作者信息

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

机构信息

Alumnno de la Facultad de Medicina de la Universidad Peruana Cayetano Heredia, Lima-Perú.

出版信息

Rev Gastroenterol Peru. 2009 Oct-Dec;29(4):321-5.

PMID:20066016

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.

摘要

引言

2002年，美国结直肠癌多学会特别工作组建议，结肠镜检查时的退镜阶段平均应至少持续6 - 10分钟，以提高息肉检出率。然而，这些建议是基于此前针对高结直肠癌风险人群的研究得出的。我们研究的目的是确定实施退镜时间≥6分钟的政策是否会在统计学上与结肠息肉检出率的提高相关。

材料与方法

我们回顾性评估了2006年1月至2009年7月在我院进行的所有全结肠镜检查的操作数据。自2008年1月起，我们实施了退镜时间≥6分钟的政策。我们计算了检出率，并将这些时期的数据与我们的基线数据进行比较，基线数据来自退镜时间未知的前两年。

结果

我们回顾了2006年1月至2009年7月进行的2004例结肠镜检查的操作数据；1042例来自退镜时间≥6分钟的实施阶段，962例来自前两年。我们发现在退镜时间≥6分钟的实施阶段有162例患者至少检测到一个息肉，而基线期有144例患者检测到息肉。退镜时间≥6分钟时期的息肉检出率为15.55%，而基线期每年的检出率分别为16.17%和15.84%。两个比较组之间未检测到息肉检出率有显著增加（p = 0.955）。