Fig. 4From: Inspiratory effort impacts the accuracy of pulse pressure variations for fluid responsiveness prediction in mechanically ventilated patients with spontaneous breathing activity: a prospective cohort studyGray zone of pulse pressure variation to predict fluid responsiveness patients with P0.1 < 1.5 cmH20 (10.5–11.5%) (A) and P0.1 ≥ 1.5 cmH20 (8.5–16.5%) (B). P0.1 Airway occlusion pressure, PPV pulse pressure variationBack to article page