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  • Title: Unsedated colonoscopy: an option for some but not for all.
    Author: Paggi S, Radaelli F, Amato A, Meucci G, Spinzi G, Rondonotti E, Terruzzi V.
    Journal: Gastrointest Endosc; 2012 Feb; 75(2):392-8. PubMed ID: 22248607.
    Abstract:
    BACKGROUND: The increasing request for colonoscopy in clinical practice, coupled with the lack of time, has led to a renewed interest in unsedated procedures. OBJECTIVE: To evaluate the acceptability of unsedated colonoscopy and to characterize the subset of patients more likely to undergo and complete the procedure without sedation and/or analgesia. DESIGN: Prospective, population study. SETTING: Nonacademic community hospital, 6-month observation period. PATIENTS: Adult outpatients referred for colonoscopy were offered unsedated procedure, with the possibility of on-demand sedation. INTERVENTIONS: Demographics, clinical features, and endoscopy outcomes were recorded. Data were analyzed by stepwise logistic regression analysis, and odds ratio (OR) and 95% confidence interval (CI) are given for significant variables. MAIN OUTCOME MEASUREMENTS: Unsedated colonoscopy acceptance rate. Factors significantly associated with acceptance and completion of unsedated procedures. RESULTS: The acceptance rate for unsedated colonoscopy was 56.2% of 964 consecutive evaluated patients. The cecal intubation rate in unsedated patients was 81.6% and increased to 97.3% with the option of on-demand sedation. At multivariate analysis, factors significantly associated with the acceptance were no previous colonoscopy (OR 1.52; 95% CI, 1.10-2.11), absent/low level of anxiety (OR 3.82; 95% CI, 2.71-5.38), and no concern about the examination (OR 1.80; 95% CI, 1.17-2.77). Fear of procedure-related pain was inversely associated with acceptance (OR 0.28; 95% CI, 0.17-0.35). Factors associated to drug-free colonoscopy completion were absence of preprocedure anxiety (OR 1.87; 95% CI, 1.08-3.21) and male sex (OR 3.59; 95% CI, 2.13-6.05). LIMITATIONS: Single-center study. CONCLUSION: The acceptance rate of unsedated colonoscopy is clinically relevant, and the procedure can be completed without sedation in the majority of patients. Subject-related factors may help to identify patients willing to undergo and potentially complete unsedated procedures.
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