Clinical trial Recruiting at 1 site Interventional Ages 65 and up

Using vagus nerve stimulation to prevent delirium in elderly patients after surgery

Official title: Transcutaneous Auricular Vagus Nerve Stimulation (taVNS)Prevents Postoperative Delirium in Elderly Patients: a Randomized Controlled Study

Run by Beijing Tiantan Hospital · NCT06421077 · Data updated 2026-11-12

This study is testing if a new way of stimulating the vagus nerve can help prevent confusion in older patients after they have surgery.

Quick facts

Study typeInterventional
Ages65 Years and up
SexAll
Enrollment1776 (estimated)
SponsorBeijing Tiantan Hospital
Academic / other
Locations1 site (Beijing)
StatusRecruiting
StartedJune 20, 2024
Main results expectedDecember 31, 2025
Study endsDecember 31, 2025
Registry record updatedApril 25, 2025
Trial IDNCT06421077 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are elderly patients aged 65 and older who are scheduled for surgeries lasting at least two hours and will have a postoperative hospital stay of four days or more.

Probably not a fit

Patients undergoing neurosurgery or cardiac surgery, emergency surgeries, or those with severe cognitive dysfunction may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This clinical trial investigates the effectiveness of transcutaneous auricular vagus nerve stimulation (taVNS) in preventing postoperative delirium (POD) in elderly patients undergoing anesthesia for surgery. Participants will be randomly assigned to receive either standard or low stimulation parameters of taVNS, and the incidence of POD will be evaluated within five days post-surgery. Secondary outcomes will assess cognitive impairment, mortality rates, adverse events, and length of hospital stay. The study aims to provide evidence for the safety and efficacy of taVNS in improving postoperative brain health.

Why it matters

Potential benefit: If successful, this approach could significantly reduce the incidence of postoperative delirium in elderly patients, improving their recovery and overall health outcomes.

How similar studies have gone: While the use of vagus nerve stimulation is a novel approach in this context, similar studies have shown promising results in related areas of postoperative care.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age≥65 years
* Expected operation time≥ 2 hours
* Postoperative hospital stay≥ 4 days
* Sign the informed consent form

Exclusion Criteria:

* Neurosurgery or cardiac surgery
* Emergency surgery within 6 hours of admission
* End-stage disease with an expected survival of \< 3 months
* Preoperative severe cognitive dysfunction affected perioperative cognitive function assessment
* Severe sinus bradycardia, AVB of degree II and above, pacemaker placement

Where it's running

  • Beijing Tiantan Hospital, Capital Medical University
    Beijing, China
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.