• J Clin Anesth · Nov 2004

    Randomized Controlled Trial Multicenter Study Comparative Study Clinical Trial

    Nasal versus oral fiberoptic intubation via a cuffed oropharyngeal airway (COPA) during spontaneous ventilation.

    • Tiberiu Ezri, Peter Szmuk, Shmuel Evron, Robert D Warters, Oscar Herman, and Avi A Weinbroum.
    • Department of Anesthesia and Plastic Surgery Unit, Wolfson Medical Center, Holon, Israel.
    • J Clin Anesth. 2004 Nov 1; 16 (7): 503507503-7.

    Study ObjectiveTo compare the success rate of nasal versus oral fiberoptic intubation in anesthetized patients breathing spontaneously via the cuffed oropharyngeal airway (COPAtrade mark).DesignProspective, randomized, controlled study.SettingTwo university-affiliated hospitals.PatientsPatients scheduled for general or plastic surgery of the torso or extremities.InterventionsNasal (n=20) and oral (n=20) fiberoptic intubation were performed in patients while breathing spontaneously via the COPA during standardized anesthesia.MeasurementsDemographic data, mean arterial pressure, heart rate, end-tidal carbon dioxide (ETCO2), oxygen saturation (SpO2), COPA size, difficult airway predictors, rate of failed ventilation via COPA, and frequency of hypoxemia (SpO2 < 90%) during the procedure, and perioperative untoward events were recorded.Main ResultsThe background, airway difficulty, vital signs and untoward effects were similar in the two groups. Nasal fiberoptic laryngeal view (scale 1-4) was better than the oral grading (3 [median] vs. 2, respectively; p <0.05). Eighty percent of the nasal intubations were successful compared with 40% of the oral intubations (p <0.05). Nasal intubations were accomplished within 153 +/- 15 SD seconds compared with 236 +/- 22 seconds (p <0.05) for the oral intubations, and less propofol was needed in the nasal intubations during the procedures (240 +/- 27 mg [nasal] vs. 277+/- 39 mg [oral]; p <0.05).ConclusionsNasal fiberoptic laryngoscopy is more successful and easy than the oral approach in anesthetized patients who are breathing spontaneously through the COPA.

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