Abstract 285: The rSO2 Value Is Useful as a New Index of ROSC
Background: It is important to continue chest compression on cardio-pulmonary resuscitation (CPR) without interruption. However, we can not but stop chest compression during checking pulse. We reported that Regional cerebral Oxygen Saturation (rSO2) value was not elevated by manual chest compression and that mechanical chest compression increased a little rSO2 value on CPR without return of spontaneous circulation (ROSC). Our hypothesis is that rSO2 value becomes a good parameter of ROSC.
Purpose: The purpose of this study is to examine the utility of rSO2 value as index of ROSC.
Method: Retrospectively, we considered the rSO2 value of the out-of -hospital cardiac arrest patients from December 2012 to December 2013. During CPR, rSO2 were recorded continuously from the forehead of the patients by TOS-OR (Japan). CPR for patients with OHCA was performed according to the JRC-guidelines 2010.
Result: Forty-four patients with OHCA were included in this study. The rSO2 value of arriving hospital, manual chest compression, mechanical chest compression and ROSC were 39.2±5.0%, 38.3±4.5%, 45.0±7.1%, 58.7±5.9%. In ROSC, with rSO2 cutoff value of 55%, the specificity and sensitivity were 77% and 97%, respectively. The areas under the receiver operating characteristic curve (ROC-AUC) of rSO2 was 0.972, respectively.
Conclusion: The rSO2 value during CPR would become the new index of ROSC.
Author Disclosures: Y. Ogawa: None. T. Shiozaki: None. T. Hirose: None. M. Ohnishi: None. H. Ogura: None. T. Shimazu: None. M. Kishi: None.
- © 2014 by American Heart Association, Inc.