Figure 1From: How can the response to volume expansion in patients with spontaneous respiratory movements be predicted?Relation between the ΔPP and the maximal ΔCI after volume expansion. This relationship was not significant (R2 = 0.02, p = 0.94). Diamonds, patients breathing through a face mask; squares, patients receiving pressure support ventilation. ΔCI, change in cardiac index; ΔPP, pulse pressure variation.Back to article page