![]() ![]() We also excluded patients taking drugs with substantial effects on gastrointestinal motility including prokinetics, stool softeners (e.g. A total of 404 outpatients were analyzed in the study after excluding patients who did not complete the bowel preparation regimen or did not provide an adequate response on the bowel habit questionnaire, patients with a history of colorectal surgery, patients less than 20 years or more than 80 years old, and motor impaired patients with a performance status 3 or 4 due to underlying comorbidities such as strokes. This retrospective study included all patients who underwent total colonoscopy for the purpose of screening or diagnostic evaluation and completed a bowel habit questionnaire at the gastroenterology outpatient clinic of the Korea University Hospital between December 2012 and December 2013. In the present study, we aimed to better characterize the relationship between personal bowel habits and quality of bowel preparation, and to investigate the risk factors associated with poor bowel preparation. Therefore, it is of great value to evaluate the impact of bowel habits on the quality of bowel preparation for colonoscopy, but data concerning this issue are very limited. Īccording to previous studies, bowel habits (bowel movement frequency and stool consistency) reflect whole or colonic transit time, and they are simply measured at outpatient clinics based on taking patient's medical history. Additionally, most studies were limited in that constipation was either recorded as a yes/no response of the patient or defined arbitrarily by the number of bowel movements per week. However, because the definition of constipation is somewhat subjective and includes several heterogeneous factors, such as excessive straining, hard stool, sense of incomplete bowel evacuation, and infrequent bowel movements, the exact relationship between bowel habits and the quality of bowel preparation remains unclear. Constipation has been reported as a probable risk factor for poor bowel preparation in several studies hence, infrequent bowel movements are thought to be associated with poor bowel preparation. Previous studies on bowel preparation have focused on the roles of cleansing methods and dosing regimens, and little is known regarding the association between bowel habits and bowel preparation. The effectiveness of colonoscopy is largely dependent on the quality of bowel preparation, and poor preparation is associated with a low detection rate of colonic polyps and prolonged procedure time, including cecal intubation and withdrawal time. Infrequent bowel movement (<3/week) was significantly associated with poor bowel preparation.Ĭolonoscopy is a useful tool for the prevention of colorectal cancer. When subdividing by colonic segment, it was significantly associated with poor bowel preparation in all segments. ![]() After adjusting for age, sex, drinking, presence of diabetes mellitus, and bowel preparation regimen, infrequent bowel movement (<3/week) was still significantly associated with poor bowel preparation. BSS types 1 and 2 tended to have an association with poor bowel preparation, but the association was statistically insignificant (OR: 2.38 95% CI, 0.90–6.33, P = .082). The odds ratio (OR) of poor bowel preparation being associated with infrequent bowel movements (<3/week) was 5.00 (95% confidence interval, 1.91–13.1, P = .001). Poor bowel preparation was reported in 9.4% of observed colonoscopies. Segment scores of ≥3 or total OBPS scores of >7 were defined as poor bowel preparation. The quality of bowel preparation was determined during colonoscopy according to the Ottawa Bowel Preparation Scale (OBPS). The usual stool form of patients was classified into 7 categories according to the Bristol Stool Scale (BSS). Here, we aimed to evaluate the impact of bowel habits on the quality of bowel preparation.Ī total of 404 patients who underwent a total colonoscopy and completed a personal bowel habit questionnaire at Korea University Hospital between December 2012 and December 2013 were enrolled. ![]() Although many studies have previously evaluated the role of cleansing methods and dosing regimens, few have examined the association between bowel habits and subsequent bowel preparation. The effectiveness of colonoscopy is highly dependent on the quality of bowel preparation. ![]()
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