RESUMO
UNLABELLED: The aim of this study was to evaluate if the sedation during colonoscopy is correctly performed in our patients, especially because it is usually performed by residents in anesthesiology. METHODS: we retrospectively evaluated sedation in all the colonoscopies performed in our Endoscopy Department in 2007, by analyzing the sedation scheme that was used. RESULTS: 974 colonoscopies were evaluated. The following sedation schemes were used in the majority of cases: midazolam+propofol+fentanyl-507 patients (52.1%) and diazepam+propofol+fentanyl-258 patients (26.5%). Propofol (in combination with one or more other agents) was used for sedation in 96.9% of cases. The mean doses of drugs were: propofol 125.2+/-67.7 mg, midazolam 2.29+/-0.84 mg (or diazepam 3.4+/-1.4 mg) and fentanyl 59+/-10 microg. The following complications were observed during sedation for colonoscopy: 6 patients (0.6%) developed hypoxemia, which was managed successfully with supplemental oxygen administration or flumazenil injection; 1 patient (0.1%) suffered a cardiac arrest that was successfully managed. There were no deaths or other complications. CONCLUSIONS: Propofol, combined with an opioid and a benzodiazepine, was used in approximately 97% of cases. The rate of significant oxygen desaturation was low (0.6%). No fatal complications occurred. The mean doses of propofol used were higher than those from published data, while the doses of midazolam and fentanyl were similar.
