Author’s response to reviews Title: Observations on significant hemodynamic changes caused by high concentration of epidurally administered ropivacaine: Correlation and prediction study of stroke volume variation and central venous pressure in thoracic epidural anesthesia Authors:

Title: Observations on significant hemodynamic changes caused by high concentration of epidurally administered ropivacaine: Correlation and prediction study of stroke volume variation and central venous pressure in thoracic epidural anesthesia Authors: Jeong-Min Hong ([email protected]) HYEONJEONG LEE ([email protected]) Young-Jae Oh ([email protected]) Ah Reum Cho ([email protected]) Hyae Jin Kim ([email protected]) Do-Won Lee ([email protected]) Wang-Seok Do ([email protected]) Jae-Young Kwon ([email protected]) Haekyu Kim ([email protected]) Version: 3 Date: 22 Oct 2017 Author’s response to reviews: We really appreciate with your kind comments and positive response to our study. Editor) Please provide a high resolution version of Figure 2. A) We changed Figure 2 to a high resolution version. (from 300 dpi to 1000 dpi) In addition, we revised the name of groups (from mg to %). We also revised the name of groups in figure 1.(from mg to %)