Relationship Between Last Defecation Time of Bowel Preparation and Quality of Colonoscopy
10.3969/j.issn.1008-7125.2024.07.001
- VernacularTitle:肠道准备末次排便时间对结肠镜检查质量的影响
- Author:
Xujin CHEN
1
;
Liangyun ZHOU
;
Bingni WEI
;
Bingxin XU
;
Xiaoxue ZHANG
;
Lin JI
;
Cheng YANG
;
Qiang ZHAN
Author Information
1. 南京医科大学附属无锡人民医院消化内科(214023);南京医科大学无锡医学中心 国家消化系统疾病临床研究中心(西安)江苏省分中心
- Publication Type:Journal Article
- Keywords:
Colonoscopy;
Bowel Preparation;
Last Defecation Time;
Adenoma Detection Rate;
Polyp Detection Rate
- From:
Chinese Journal of Gastroenterology
2024;29(7):385-390
- CountryChina
- Language:Chinese
-
Abstract:
Background:Colonoscopy is the gold standard for diagnosis of colorectal cancer,and the success of colonoscopy is highly depended on the quality of bowel preparation.Aims:To investigate the impact of the last defecation time before colonoscopy on qualities of bowel preparation and colonoscopy.Methods:Consecutive outpatients who underwent painless colonoscopy from June 2023 to December 2023 at 5 medical centers in Jiangsu Province and met the inclusion criteria were enrolled in this multicenter cross-sectional study.These patients were divided into 3 groups according to the time interval between the last defecation and the start of colonoscopy.The time interval was≤2 h,2-5 h,and≥5 h in group A,B,and C,respectively.The primary outcome was the score of the Boston Bowel Preparation Scale(BBPS),and the secondary outcomes included the cecal intubation time(CIT),withdrawal time(WT),cecal intubation length(CIL),adenoma detection rate(ADR),and polyp detection rate(PDR).Results:A total of 298 patients underwent painless colonoscopy were enrolled in the study.There were no significant differences in gender,age,body mass index,abdominal circumference,comorbidities,surgical histories,and other baseline data among the three groups.The total BBPS score declined gradually from 8.27±0.58 in group A to 8.21±0.53 in group B and 8.05±0.37 in group C(P<0.05).Segment-specific analysis showed that significant difference in bowel cleanliness only existed in right colon among the three groups(BBPS score:2.48±0.50,2.40±0.49,and 2.18±0.39,respectively,P<0.05).There were no significant differences in CIT,WT and CIL among the three groups,while the highest ADR and PDR were seen in group B(ADR:45.2%,57.5%,and 35.4%,respectively,P<0.05;PDR:53.4%,63.8%,and 43.1%,respectively,P<0.05).Conclusions:When the time interval between the last defecation and the start of colonoscopy is less than 5 h,more effective bowel preparation and higher ADR and PDR can be achieved.
