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Fig. 4 | BMC Anesthesiology

Fig. 4

From: Impact of changes in head position during head and neck surgery on the depth of tracheal tube intubation in anesthetized children

Fig. 4

Scatter plot of distance between the tracheal carina to the endotracheal tube tip (a), distance from the superior margin of the endotracheal tube tip cuff to the vocal cord posterior commissure (b), and the distance between the tracheal carina to the posterior vocal commissure (c) with age in children with 3 different intraoperative head positions. The red dotted line indicates that the distance from tip of the tube to the bulge is 2 cm, which is the ideal position for the endotracheal tube tip

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