• Anesthesia and analgesia · Apr 2003

    Comparative Study Clinical Trial

    A comparison of the PAxpress and face mask plus Guedel airway by inexperienced personnel after mannequin-only training.

    • V Dimitriou, G S Voyagis, C Iatrou, and J Brimacombe.
    • Department of Anaesthesia, University of Thrace, Greece.
    • Anesth. Analg. 2003 Apr 1; 96 (4): 1214-7, table of contents.

    UnlabelledThe PAxpress (PAX) is a new extraglottic airway device consisting of an anatomically curved tube, an inflatable circular cuff in the midsection, a noninflatable gilled conical cuff at the distal end, and an anterior-facing, rectangular hooded vent between the two cuffs. We compared the ability of nurses with no previous airway management experience to ventilate the lungs of 45 ASA physical status I and II anesthetized, paralyzed patients using either the PAX or face mask and Guedel airway (FM/GA) after mannequin-only training. Nurses were asked to ventilate the patient to an expired target tidal volume of 7 mL/kg and then to the maximum tidal volume achievable. The FM/GA was used first and the then the PAX. The target tidal volume was achieved in all patients with both devices. There were no differences in the time taken (PAX, 41 +/- 15 s; FM/GA, 39 +/- 25 s) or the number of insertion attempts to achieve the target tidal volume. There were no differences in the frequency of esophageal leaks at the target (PAX, 9%; FM/GA, 4%) and maximum tidal volume (PAX, 51%; FM/GA, 49%). The maximal tidal volume (1261 +/- 306 versus 958 +/- 220 mL; P < 0.0001) and peak airway pressure (37 +/- 5 versus 28 +/- 6 cm H(2)O; P < 0.0001) was larger for the PAX, but blood was detected more frequently (22% versus 0%; P = 0.001). We conclude that ventilation to a target tidal volume of 7 mL/kg in anesthetized, paralyzed adults is equally successful for the PAX and FM/GA by inexperienced nurses after mannequin-only training. However, the maximal tidal volume and peak airway pressure is larger and airway trauma more common with the PAX.ImplicationsVentilation to a target tidal volume of 7 mL/kg in anesthetized, paralyzed adults is equally successful for the PAxpress (PAX) and Face Mask/Guedel Airway by inexperienced nurses after mannequin-only training. However, the maximal tidal volume and peak airway pressure is larger and airway trauma more common with the PAX.

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