Patient Factors Predicting the Completion of Sedation-Free Colonoscopy

Background/Aims: Colonoscopy without sedation costs less than sedated colonoscopy. The aim of this study is to identify the patient factors predicting the completion of colonoscopy without sedation. Methodology: Between May and September 2005, a single colorectal surgeon performed 120 consecutive colonoscopies. Patient demographic, clinical and colonoscopy- related data were collected and analyzed. Results: Out of 120 colonoscopies performed. 11 were excluded due to obstruction of the colon by a tumor or poor preparation. Therefore, the study group contained 109 patients. Ninety-three (85.3%) colonoscopies were completed. Completion rate (odds ratio for completion [95% confidence interval]) was significantly associated with the male gender (5.03 [1.35-18.86]) high body mass index (4.42 [1.18-16.67]) , no previous history of gynecological surgery (6.36 [1.84- 22.14]), and previous colonic resection. Previous gynecological Surgery was significantly associated with lower completion rates as shown using multivariate analysis. No complications relating to colonoscopy were observed. Conclusions: In the majority of patients, a colorectal surgeon with adequate endoscopy experience can perform sedation -free colonoscopy successfully and safely. Gender, previous gynecological surgery previous colonic resection, and body mass index were predictive factors for successful colonoscopy without sedation