Effect of seandary sigmoid colonoscopy on the detection rate of adenomatous polyps

doi:10.3877/cma.j.issn.2095-7157.2022.02.014

Abstract

Abstract:

Objective

To study the influence of the detection rate of adenomatous polyps in sigmoid colon by observing the sigmoid colon in repeated colonoscopy.

Methods

A total of 1 800 patients who underwent colonoscopy in the endoscopy center of the Second Affiliated Hospital of Baotou Medical College in December 2020 were selected, and 900 of them were randomly selected for the observation of sigmoid colon with double repeated endoscopy, and the detection rate of adenomatous polyps in sigmoid colon with single endoscopy and double repeated endoscopy was analyzed.

Results

Among the 1 800 cases of colonoscopy, 832 cases of colonic adenomatous polyps were examined. 780 adenomas were detected by single sigmoid colonoscopy, and 1 080 adenomas were detected by repeated sigmoid colonoscopy.

Conclusion

In this study, secondary sigmoid colonoscopy can improve the detection rate of adenomatous polyps in sigmoid colon, which has important clinical significance in reducing the risk of developing colon cancer.

Key words: Colonic node examination, Adenomatous polyps, Secondary endoscopy, Detection rate

Jingjie Zhang, Zhenyu Jiang, Bofu Tang, Yong Wu, Xianmei Meng. Effect of seandary sigmoid colonoscopy on the detection rate of adenomatous polyps[J]. Chinese Journal of Gastrointestinal Endoscopy(Electronic Edition), 2022, 09(02): 82-85.

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Figures/Tables 4

References 11

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项目	乙状结肠单次进镜(n＝900)	乙状结肠二次进镜(n＝900)	P值
性别(男/女)	461/439	456/444	0.780
年龄(岁)	56.03±7.24	55.75±10.26	0.873
BMI(kg/m²)	24.30±2.63	24.68±2.56	0.118

项目	乙状结肠单次进镜(n＝900)	乙状结肠二次进镜(n＝900)	P值
性别(男/女)	461/439	456/444	0.780
年龄(岁)	56.03±7.24	55.75±10.26	0.873
BMI(kg/m²)	24.30±2.63	24.68±2.56	0.118

项目	乙状结肠单次进镜(n＝900)	乙状结肠二次进镜(n＝900)	P值
进镜(min)	3.82±2.58	3.05±2.64	0.082
退镜(min)	6.88±1.36	7.12±2.06	0.026
腺瘤检出率	362(40.2)	470(52.2)	0.013

项目	乙状结肠单次进镜(n＝900)	乙状结肠二次进镜(n＝900)	P值
进镜(min)	3.82±2.58	3.05±2.64	0.082
退镜(min)	6.88±1.36	7.12±2.06	0.026
腺瘤检出率	362(40.2)	470(52.2)	0.013

项目		单次进镜	二次进镜	P值
息肉检出数目(枚)		780	1 080	0.022
息肉直径(mm)
	≤5	487	589	0.041
	5~10	203	316	0.029
	≥10	90	166	0.023
息肉形态
	山田Ⅰ型	263	383	0.361
	山田Ⅱ型	388	516	0.090
	山田Ⅲ型	109	132	0.918
	山田Ⅳ型	20	49	0.834

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