• The Laryngoscope · Mar 2016

    Comparative Study Observational Study

    A comparison of dexmedetomidine versus propofol during drug-induced sleep endoscopy in sleep apnea patients.

    • Byung-Woo Yoon, Jeong-Min Hong, Sung-Lyong Hong, Soo-Kweon Koo, Hwan-Jung Roh, and Kyu-Sup Cho.
    • Department of Otorhinolaryngology and Biomedical Research Institute, Pusan National University School of Medicine, Pusan National University Hospital, Busan, Republic of Korea.
    • Laryngoscope. 2016 Mar 1; 126 (3): 763-7.

    Objectives/HypothesisIn this study, we compared the effects of propofol and dexmedetomidine on the upper airway collapse pattern and cardiopulmonary parameters of patients with obstructive sleep apnea (OSA) undergoing drug-induced sleep endoscopy (DISE).Study DesignProspective, single center, observational studyMaterials And MethodsThe 50 patients with OSA underwent 30 minutes of DISE on 2 different days, the first time with propofol target-controlled infusion (TCI) and the second time with dexmedetomidine TCI. Both the characteristics of upper airway obstruction and cardiopulmonary parameters in response to the depth of sedation achieved with each drug were evaluated.ResultsThe results obtained with propofol and dexmedetomidine DISE were in excellent agreement for all sites of obstruction irrespective of the depth of sedation. Although partial or total obstruction at all areas was consistently observed using both drugs, the degree of upper airway narrowing was slightly lower with dexmedetomidine than with propofol. However, the percentage of patients with a greater than 20% change in blood pressure and heart rate compared to baseline was significantly higher in response to propofol than to dexmedetomidine (P = 0.003 and P < 0.001, respectively). Minimal oxygen saturation was significantly lower in DISE with propofol than with dexmedetomidine (P = 0.004). The percentage of patients with oxygen saturation less than 90% or 80% during DISE was significantly higher in response to propofol than to dexmedetomidine (P = 0.032 and P < 0.001, respectively).ConclusionThe DISE findings achieved with propofol and dexmedetomidine were in excellent agreement. However, during DISE, dexmedetomidine provided greater hemodynamic stability and less respiratory depression than propofol.Level Of Evidence4. Laryngoscope, 126:763-767, 2016.© 2015 The American Laryngological, Rhinological and Otological Society, Inc.

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