Laryngoscope Blades

Two types of blades are most commonly available in emergency departments for pediatric intubation: curved (Macintosh) and straight (Miller). The tip of the Macintosh blade is inserted into the vallecula anterior to the epiglottis, and, as the blade is lifted, the epiglottis is elevated passively beneath the blade tip to expose the glottic opening. The tip of the Miller blade is placed beneath the epiglottis, which is directly elevated as the blade is lifted. A straight blade is superior to a curved blade in children under 2 years of age. T§ble...ll:2 is a guide for laryngoscope selection in pediatric patients.

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