Stimulation of the aortic arch was performed using the Octad, Quad and Pace probes at a voltage and frequency of 10 mvolts and 60 Hertz, respectively.
Data was collected using the Vigileo System (Edwards Lifesciences, Irvine, California, United States) which is a hemodynamic monitoring system that allows monitoring of blood pressure and pulse rate. This system was connected to a femoral artery cannulation probe. Blood pressure response was measured via the arterial pressure wave of the femoral artery. Blood pressure measurements were recorded at 5 min intervals in order to determine the effect of aortic baroreceptor stimulation on blood pressure and pulse rate.
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