The Acute Carotid Sinus Endovascular Stimulation II (ACES II) Study is a multicenter,
prospective, non-randomized study that is being conducted to evaluate the feasibility of
endovascular stimulation of carotid sinus nerves via an electrophysiology (EP) catheter
advanced into the internal jugular vein (IJV). The current study investigates the hypothesis
that intraoperative electrical stimulation of the carotid sinus from the IJV will result in
an acute and dose-dependent reduction in blood pressure and heart rate.