The rate of adequate bowel preparation is one of important quality indicators of colonoscopy. Inadequate bowel preparation negatively affects the outcomes of colonoscopy. If patients with inadequate bowel preparation were identified before the procedure, enhanced strategy could be offered to achieve better bowel cleaning. Currently, there were three predicting models of inadequate bowel preparation established based on patient-related factors. So far, none of predictive models have been tested in other than their validation cohort populations, and no study has attempted to apply a different regimen to patients presenting with risk factors for inadequate colon cleanliness. In previous studies, we established a prediction model based on procedure-related factors, which has better accuracy and can better predict the quality of bowel preparation. The aim of this study is to compare the quality of bowel preparation by using a predictive model based on procedure-related factors versus the criterion group in unsedation patients
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
SINGLE
Enrollment
900
Before colonoscopy, patient-related and procedure-related parameters were collected by one investigator in each center. In MI group, a procedure-based score, used for predicting inadequate bowel preparation, was calculated for each patients. Patients with score ≥3 were asked to taking another dose of PEG (1.5L) within 1-2 hours. Colonoscopy was performed in afternoon (about 4h after drinking PEG). Patients with score\<3 in IM group and those in the control group underwent colonoscopy directly
Department of Gastroenterology, Hongai Hospital
Xiamen, Fujian, China
Department of Holistic Integrative Medicine, Shenzhen Hospital of Southern Medical University
Shenzhen, Guangdong, China
Department of Gastroenterology, Huaihe Hospital of Henan University
Kaifeng, Henan, China
Department of Gastroenterology, Shaanxi Second People's Hospital
Xi'an, Shaanxi, China
Endoscopic center, Xijing Hospital of Digestive Diseases
Xi'an, Shaanxi, China
Adequate bowel preparation
Defined by each segmental BBPS≥2
Time frame: 6 months
Adenoma detection rate
The proportion of participants with at least one adenoma in each group
Time frame: 6 months
Overall complication related to bowel preparation
Time frame: 6 months
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