Current Guideline of Chest Compression Depth for Children of All Ages May Be Too Deep for Younger Children

Figure 1

Measured diameters on an axial chest CT image at the level of the lower half of the sternum. APd was defined as the distance from the anterior skin to the posterior skin. ACWd was defined as the distance from the anterior skin to the posterior sternum. Cd was defined as the distance from the posterior sternum to the anterior vertebral body. APd: anteroposterior diameter; ACW: anterior chest wall diameter; C: compressible diameter.