Korean J Anesthesiol 2019 October 72(5): 429-440
The article by Lee et al. entitled, “Fluid responsiveness in the pediatric population” (Korean J Anesthesiol 2019 Oct; 72(5): 429-440) should add the following explanation in Fig. 2.
![kja-19305-e1i1.tif](/upload/SynapseXML/0011kja/thumb/kja-19305-e1i1.gif)
The unit of the suggested equations for PPV and SPV is %.
Although SPV (mmHg) is traditionally calculated as SPmax-SPmin or ΔUp + ΔDown, SPV(%) has been used for pediatric patients.