Study endpoints
The primary endpoint of this study was the correlation between changes in CDPV and CI during an EEOt. Secondary endpoints were the correlations between changes in CDPV and CI after the fluid challenge and between changes in cFT and CI during EEOt and after fluid challenge. We also explored the ability of changes in CDPV and cFT during EEOt to predict fluid responsiveness. Differences between responders and non-responders were studied during all three phases of our observation (baseline, EEOt, and fluid challenge).