Acute Effect of Transcutaneous Auricular Vagus Nerve Stimulation in Two Different Locations on Blood Pressure and Cardiac Autonomic Modulation in Healthy and Hypertensive Individuals: Pilot Study of a
3 hours ago
- #blood pressure
- #noninvasive stimulation
- #autonomic modulation
- Compares acute effects of transcutaneous auricular vagus nerve stimulation (taVNS) at two ear locations—tragus and cymba conchae—on blood pressure and cardiac autonomic modulation in hypertensive and healthy individuals.
- Finds significant group, time, and stimulation site interactions for blood pressure: cymba conchae stimulation reduced blood pressure in healthy participants, while tragus stimulation reduced diastolic blood pressure only in hypertensive participants.
- Suggests acute taVNS produces site- and group-dependent cardiovascular responses with limited clinical impact from a single session, indicating need for repeated or longer protocols in hypertension.