Fig. 1

Procedure of implanted electrodes and location by CTscan. a Procedure of electrode insertion into the vagus nerve. 1. Photograph showing the trachea and the sternocleidomastoid muscle, carotid. 2. Sheath with carotid and vagus nerve. 3. Vagus nerve is shown isolated. 4. Electrodes applied to the vagus nerve. t = trachea, ECOM = sternocleidomastoid, c = carotid, VN = vagus nerve. b Representative view of the electrodes inserted in the vagus nerve by Computed Tomography Scan