Introduction
POSTOPERATIVE COMPLICATIONS
Appropriate intraoperative fluid therapy aimed at optimizing cardiac output (CO) is important in decreasing postoperative complications and mortality, whereas inappropriate fluid management has been reported to be harmful [Many predictors of fluid responsiveness have been investigated [Recently, noninvasive ultrasound has been recommended to evaluate fluid status, because of its measurement reproducibility and ease of image acquisition. Among these ultrasound modalities [The primary aim of this study was to estimate whether IJVV, as assessed by Doppler ultrasound, might serve as a reliable predictor of fluid responsiveness in patients with AIS undergoing PSF during low Vt ventilation. Furthermore, we evaluated the ability of the baseline values of PPV, SVV, and the combination of IJVV and PVV to predict fluid responsiveness.