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Receiver operating characteristic curves comparing the maximum pressure rise in the aorta (Ao dP/dtmax) and radial artery (radial dP/dtmax) to predict the maximum vasoactive inotropic score (VISmax) >7. The area under the curve of Ao dP/dtmax (0.827) is higher than that of radial dP/dtmax (0.673). Ao = aortic, dP/dtmax = maximum rate of pressure rise, VISmax = maximum vasoactive inotropic score.
