Point‐of‐Care Ultrasound Assessment of the Inferior Vena Cava in Mechanically Ventilated Critically Ill Children

Objectives The objective of this study was to compare the ultrasound‐measured inferior vena cava distensibility index (IVCdi), inferior vena cava distensibility variability (IVCdv), and inferior vena cava–to–aorta ratio (IVC/Ao) to other common methods to assess fluid status in mechanically ventilated pediatric critically ill patients. These methods include central venous pressure (CVP), percent fluid overload by weight (%FOw), and percent fluid...