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  • Title: Comparison of etomidate-remifentanil and propofol-remifentanil sedation in patients scheduled for colonoscopy.
    Author: Toklu S, Iyilikci L, Gonen C, Ciftci L, Gunenc F, Sahin E, Gokel E.
    Journal: Eur J Anaesthesiol; 2009 May; 26(5):370-6. PubMed ID: 19300267.
    Abstract:
    OBJECTIVE: The aim of the study was to compare haemodynamic responses, recovery and discharge times, and physician satisfaction of etomidate-remifentanil and propofol-remifentanil combinations in patients undergoing elective colonoscopy. METHODS: Sixty patients, aged 18-65 years, scheduled for elective colonoscopy under sedation were prospectively randomized, double blind for the study. Two minutes after the beginning of a continuous remifentanil infusion (0.1 microg kg(-1) min(-1)), etomidate or propofol were administered. Patients in the etomidate group received a 0.05 mg kg(-1) maintenance dose of etomidate after an initial dose of 0.1 mg kg(-1), and patients in the propofol group received a 0.25 mg kg(-1) maintenance dose of propofol after an initial dose of 0.5 mg kg(-1) in order to have a Ramsay sedation score of 3-4. Basal values of heart rate, mean arterial pressure, oxygen saturation, respiratory rate and Ramsay sedation score were recorded. Values were recorded every 2 min for the first 10 min and every 5 min thereafter, until the completion of the procedure. RESULTS: Mean arterial pressure was lower at 4, 6, 8, 10, 15, 20 and 25 min in the propofol group (P = 0.001). Mean respiratory rate in the propofol group at 6, 8, 10, 15, 20, 25 min was also lower (P < 0.05). The incidence of apnoea and hypotension was significantly lower in the etomidate group (P < 0.001). Arrival time into the postoperative care unit and recovery time were shorter in the etomidate group (P = 0.001, P = 0.01, respectively). Physician satisfaction in both groups was similar. CONCLUSION: Etomidate-remifentanil administration for sedation and analgesia during colonoscopy resulted in more stable haemodynamic responses and shorter recovery and discharge times.
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