A simple modification of the Trachlight for pediatric use

To the editor: The Trachlight (Laerdal Medical, Wappingers Falls, NY, USA) is a useful device for tracheal intubation in various clinical settings [1–3]. In pediatric patients, however, the intensity of transillumination that it produces is frequently too strong to identify the tube tip position, because of the thin soft tissues of these patients’ necks, as recently reported by Nishikawa et al. [4]. These authors also described the necessity for improvements in the device for optimal use in newborns and infants. We have incorporated a current-limiting unit into the circuit of the Trachlight (Fig. 1), which enables continuous adjustment of the light intensity. The resistor in A simple modifi cation of the Trachlight for pediatric use