Altun D, et al. – This current study, performed in pediatric patients undergoing adenotonsillectomy, investigated the success of ultrasound in determining the appropriate sized cuffed endotracheal tube. Furthermore, the results were compared with conventional height–based (Broselow) tape and age–based formula tube size. Researchers observed that ultrasound–measured subglottic diameter seemed to be a reliable predictor for the examination of the subglottic diameter of the airway in estimating appropriate size pediatric endotracheal tube.