Tracheal rapid ultrasound saline test (T.R.U.S.T.) for confirming correct endotracheal tube depth in children.

Objective: We evaluated the accuracy of tracheal ultrasonography of a saline-inflated endotracheal tube (ETT) cuff for confirming correct ETT insertion depth.

Methods: We performed a prospective feasibility study of children undergoing endotracheal intubation for surgery. Tracheal ultrasonography at the suprasternal notch was performed during transient endobronchial intubation and inflation of the cuff with saline, and with the ETT at a correct endotracheal position.