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Comparison of Intravenous Dexmedetomidine-Propofol Versus Ketofol for Sedation During Awake Fiberoptic Intubation: A Prospective, Randomized Study

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Background Management of difficult airway due to laryngeal mass is a major challenge to the anesthesiologists, and awake fiberoptic intubation (AFOI) would be the technique of choice. Objectives The current… Click to show full abstract

Background Management of difficult airway due to laryngeal mass is a major challenge to the anesthesiologists, and awake fiberoptic intubation (AFOI) would be the technique of choice. Objectives The current study aimed at comparing the effects of administration of dexmedetomidine-propofol or ketofol for sedation during AFOI in terms of intubation conditions, hemodynamic stability, and patients and anesthesiologist’s satisfaction. Methods Eighty adult patients, 18 - 60 years old, ASA (the American Society of Anesthesiologists) physical status I-III, with difficult airway due to laryngeal mass and planned for AFOI were enrolled. Sedation was randomly given to the patients according to their assigned group by either dexmedetomidine-propofol (group D; n = 40) or ketofol (group K; n = 40). Outcome variables included time to reach Ramsay sedation scale (RSS) ≥ 3, intubation time, number of patients in need of rescue propofol, patient’s discomfort score, tolerance to endoscopy and intubation, hemodynamic parameters, patients and anesthesiologist’s satisfaction, and occurrence of side effects. Results Time to reach RSS ≥ 3 and intubation time were significantly shorter, and fewer patients required rescue propofol in the K group as compared to the D group (P = 0.000*, and 0.035*, respectively). Higher discomfort score and better tolerance to endoscopy and intubation were noticed in group K than group D, but with no statistical significance (P = 0.132, 0.137, and 0.211, respectively). Patients in group D had significantly lower mean arterial pressure (MAP) and heart rate (HR) after the loading dose till five minutes after intubation (P = 0.000*). There was no significant difference in patients’ satisfaction between the two groups (P = 0.687), while anesthesiologist’s satisfaction was higher in group K compared with that of group D (P = 0.013*). Cough score as well as incidence of unfavorable respiratory outcomes were not significantly different between the two groups (P = 0.611, 0.348, respectively). Conclusions Ketofol and dexmedetomidine-propofol combination were suitable and satisfactory for AFOI. However, ketofol was more advantageous in offering faster onset of sedation, shorter intubation time, stable hemodynamic profile, as well as higher anesthesiologist’s satisfaction when compared to dexmedetomidine-propofol.

Keywords: group; intubation; dexmedetomidine propofol; sedation

Journal Title: Anesthesiology and Pain Medicine
Year Published: 2019

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