20 January 2016 : Clinical Research
Target-Controlled Infusion of Propofol in Training Anesthesiology Residents in Colonoscopy Sedation: A Prospective Randomized Crossover Trial
Jia-feng WangACDEFG, Bo LiBDF, Yu-guang YangBDF, Xiao-hua FanBD, Jin-bao LiACD, Xiao-ming DengACDEGDOI: 10.12659/MSM.895295
Med Sci Monit 2016; 22:206-210
Abstract
BACKGROUND: Propofol is widely used in sedation for colonoscopy, but its adverse effects on cardiovascular and respiratory systems are still concerning. The present study investigated whether target controlled infusion (TCI) of propofol could provide a better sedation quality than manually controlled infusion (MCI) in training inexperienced anesthesiology residents.
MATERIAL AND METHODS: Eighteen training residents were allocated into 2 groups receiving TCI and MCI training in their first month in the endoscopy center, while receiving MCI and TCI training instead in their second month. The last 2 patients at the end of each month were included to analyze the sedation quality of TCI and MCI techniques by comparing satisfaction of endoscopist and patients based on the visual analogue scale (VAS). Heart rate (HR), mean blood pressure (MAP), SpO2, and recovery time were also compared as the secondary outcomes.
RESULTS: The demographic data were similarly distributed among the TCI and MCI patients. Endoscopist’s satisfaction score in the TCI group was significantly higher than in the MCI group, 81.3±7.2 versus 74.2±9.5 (P=0.003), but the patients’ satisfaction score was similar between the 2 groups. More stable hemodynamic status was obtained in the TCI group, manifested as higher lowest MAP and lower highest MAP than in the MCI group. Lowest SpO2 in the TCI group was significantly higher than in the MCI group. Patients in the TCI group recovered earlier than in the MCI group.
CONCLUSIONS: TCI is a more effective and safer technique for anesthesiology residents in sedation for colonoscopy.
Keywords: Anesthesiology - education, Colonoscopy - education, Cross-Over Studies, Demography, Infusions, Intravenous, Internship and Residency, Propofol - pharmacology, Prospective Studies
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