• Anesthesia and analgesia · Jan 2007

    Randomized Controlled Trial

    A randomized prospective study comparing the Cobra Perilaryngeal Airway and Laryngeal Mask Airway-Classic during controlled ventilation for gynecological laparoscopy.

    • Eilish M Galvin, Mirjam van Doorn, Juan Blazquez, Johannes F Ubben, Freek J Zijlstra, Jan Klein, and Serge J C Verbrugge.
    • Department of Anesthesiology, Erasmus University Medical Center Rotterdam, Rotterdam, The Netherlands. eilishgalvin@hotmail.com
    • Anesth. Analg. 2007 Jan 1;104(1):102-5.

    BackgroundAn increasing number of noninvasive, supraglottic airway devices are currently available. In this randomized single-blind study, we compared the Cobra Perilaryngeal Airway (CobraPLA) to the [Laryngeal Mask Airway (LMA)-Classic] during gynecological laparoscopy.MethodsForty patients received either an LMA-Classic or a CobraPLA. Insertion, ventilation and removal characteristics were noted, as well as any throat morbidity.ResultsDevices were similar for insertion characteristics, adverse events, and throat morbidity. Before pneumoperitoneum, peak airway pressures were 20.3 +/- 4.9 cm H2O in the LMA-Classic group versus 25.5 +/- 7.9 cm H2O in the CobraPLA group, P = 0.01. This difference was maintained during pneumoperitoneum; LMA-Classic (22.8 +/- 6.1 cm H2O) and CobraPLA (28.1 +/- 8.5 cm H2O), P = 0.04. Macroscopic blood occurred only on the CobraPLA, seen on 40% of the devices after removal, P = 0.001.ConclusionDuring gynecological laparoscopy, the CobraPLA provides similar insertion characteristics, but higher airway sealing pressures than the LMA-Classic. The usefulness of this finding requires further investigation.

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