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Fig. 2 | BMC Anesthesiology

Fig. 2

From: Norepinephrine versus phenylephrine infusion for preventing postspinal hypotension during cesarean section for twin pregnancy: a double-blinded randomized controlled clinical trial

Fig. 2

Serial changes in heart rate (A) and systolic blood pressure (B) following norepinephrine (lines in red) or phenylephrine (lines in blue) infusion. Compared with phenylephrine, infusion of norepinephrine is not associated with less decrease in heart rate (p = 0.0567) but with a lower systolic blood pressure (P = 0.0013) over the study period. On the left side, dotted lines indicate individual measurements while solid lines indicate the mean values. The shaded area shows the time period within which the newborns are delivered. One the right side, individual data are presented as scattered dots and bars indicate mean and standard deviation. (AUC = Area Under the Curve, HR = Heart Rate and SBP = Systolic Blood Pressure)

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