Introduction
stroke, critically ill
STROKE, CRITICALLY ILL, ACUTE CIRCULATORY FAILURE
In patients with acute circulatory failure, predicting volume responsiveness before deciding to infuse or not a fluid bolus, as recommended by international guidelines [However, pulse pressure variation (PPV) and stroke volume variation (SVV) have strict conditions of validity that limit their generalizability [In mechanically ventilated patients, positive end-expiratory pressure (PEEP) has a two-fold effect [The goal of this study, conducted in critically ill patients receiving low tidal volume ventilation with a PEEP level ≥ 10 cmH