Fig. 7From: Correlation between pleth variability index and ultrasonic inferior vena cava-collapsibility index in parturients with twin pregnancies undergoing cesarean section under spinal anesthesiaa 95% CI for per-anesthesia IVC-CI% and PVI at different thermal sensation block planes. b 95% CI for post-anesthesia IVC-CI% and PVI at different thermal sensation block planesBack to article page