Incidence and Predictors of Inadequate Bowel Preparation before Elective Colonoscopy in Thai Patients

Abstract

Background: The incidence of inadequate bowel preparation before elective colonoscopy in this region has never been studied. Materials and Methods: The authors prospectively described the incidence and factors related to inadequate bowel preparation in Thammasat university hospital. Bowel preparation quality was accessed by using Aronchick scale. Factors associated with inadequate bowel preparation were also recorded. Results: Two hundred patients undergoing elective outpatient colonoscopy were enrolled. Inadequate and fair bowel preparation was documented in 9 and 43%, respectively. Factors associated with inadequate bowel preparation were incomplete cleansing agent ingestion (odds ratio 7.7; 95%CI 1.62-36.64) and patient's unrecognization of vegetable avoidance (odds ratio 3.26; 95%CI 1.14-9.28). Conclusions: Compared with previous reported, inadequate bowel preparation was seen less in our study, however, more patients with fair bowel preparation was documented. Further study aiming at investigating the type and amount of fiber contained in diet before elective colonoscopy should be commenced.

Constipation, fiber intake and non‐compliance contribute to inadequate colonoscopy bowel preparation: a prospective cohort study

“…Bhanthumkomol et al . also found that incomplete preparation (OR 7.7, 95% CI 1.62–36.64) and dietary intake of vegetables before colonoscopy (OR 3.26, 95% CI 1.14–9.28) were associated with poor bowel cleaning …”

The incidence of and risk factors for inadequate bowel preparation in elderly patients: A prospective observational study

“…[ 6 ] Previous reports indicate that several factors are associated with inadequate colonoscopy bowel preparation including advanced age, male sex, education level, constipation, history of abdominal surgery, stroke, dementia, treatment with psychotropic drugs, and non-compliance with preparation instructions. [ 7 8 9 ] However, few studies have investigated the rate of and risk factors for inadequate bowel preparation in the elderly. Additionally, existing studies were almost exclusively conducted in Western countries, and bowel preparation has rarely been investigated in the Chinese population.…”

Augmentation with pre‐emptive macrogol‐based osmotic laxative does not significantly improve standard bowel preparation in unselected patients: A randomized trial

“…Logistic regression was used to conduct subgroup analyses of the primary end‐point for each of five potential risk factors for suboptimal BP: regular opioid use, history of diabetes, regular use of laxatives, polypharmacy (use of more than eight regular medications), and poor mobility . Wald χ 2 tests were used to investigate the main effects of the subgroup factor and the treatment and also their two‐way interaction.…”