Comparing direct and indirect laryngoscopy: Study design is crucial

In a randomized, controlled clinical trial by Kurnaz and Sarıtaş [1]. comparing intubation performance of the Truview PCD™ and Macintosh laryngoscopes and their effects on intubation hemodynamic responses in geriatric patients, they show that compared to Macintosh laryngoscope, Truview PCD™ laryngoscope (TPL) does not provide significant hemodynamic response sparing or a shorten intubation time. Besides the limitations described in the discussion, there are the several issues in this study that need to be clarified.

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