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A new endotracheal tube for infants – laboratory and clinical assessment: a preliminary study

Conventional endotracheal pediatric tubes offer high resistance due to their small diameters and relatively high flow during ventilation. Any increase of the diameter of the tube lumen decreases the airway resistance and subsequently, the work of breathing (WOB). We compared ventilation mechanics using a new, cone‐shaped endotracheal tube of our design to the Cole and standard tubes.