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The Pentax Airway Scope (AWS) and the GlideScope are high-resolution video laryngoscopes with a fundamental difference: The AWS has an integrated channel designed to help guide the tracheal tube through the glottis. Previous studies have shown that video laryngoscopy provides advantages over direct laryngoscopy (JW Emerg Med Mar 14 2008), but few studies have directly compared video laryngoscopes. These authors randomized 70 adult patients who required intubation for routine surgery to undergo intubation with the AWS or GlideScope with manual in-line cervical immobilization. All intubations were performed by anesthesiologists skilled in both techniques.
Time to intubation was significantly shorter with the AWS than with the GlideScope (34 vs…