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The straight Miller laryngoscope blade is traditionally recommended for intubation in infants, due to the large size and flexibility of the infant epiglottis. However, the Miller and Macintosh blades have not been systematically compared in young children. In a prospective, single-blind, randomized study, researchers compared laryngeal views obtained with size 1 Miller and Macintosh blades in 50 patients younger than 2 years (age range, 4 to 23 months) undergoing elective surgery.
Two photographs of the laryngeal view were taken with each blade: one while lifting the epiglottis and one while lifting the tongue base. An anesthetist blinded to the study reviewed the photos and assigned a percentage of glottic opening (POGO) score, with a full …