Investigating nerve activity in the heart during surgery

Synaptic Plasticity in the Epicardial Ganglionated Plexi

Phase 1 Interventional University of Oklahoma · NCT05034419

This study is testing how nerve activity in the heart affects heart rhythm during surgery in patients with atrial fibrillation.

Quick facts

PhasePhase 1
Study typeInterventional
Enrollment90 (estimated)
Ages21 Years to 90 Years
SexAll
SponsorUniversity of Oklahoma Academic / other
Locations1 site (Oklahoma City, Oklahoma)
Trial IDNCT05034419 on ClinicalTrials.gov

What this trial studies

This clinical trial focuses on understanding the role of synaptic plasticity in the epicardial ganglionated plexi in patients with atrial fibrillation. It aims to explore how the autonomic nervous system, particularly the ganglionated plexus, influences heart rhythm during open heart surgery. Participants will receive either parasympathetic or sham stimulation to assess changes in nerve activity and its potential impact on atrial fibrillation. The study is designed for patients who are scheduled for elective open heart surgery, allowing for controlled observation of these mechanisms.

Who should consider this trial

Good fit: Ideal candidates for this study are male and female patients over 21 years old who are scheduled for elective open heart surgery.

Not a fit: Patients undergoing emergent open heart surgery may not benefit from this study due to the nature of their surgical needs.

Why it matters

Potential benefit: If successful, this study could lead to improved management and treatment strategies for patients with atrial fibrillation.

How similar studies have performed: While the specific approach of this study is novel, previous studies have indicated the importance of the autonomic nervous system in atrial fibrillation, suggesting potential for success.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Male and female patients older than 21 year old
2. Patient is going to have open heart surgery.

Exclusion Criteria:

1. Patients undergoing emergent open heart surgery.

Where this trial is running

Oklahoma City, Oklahoma

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Atrial Fibrillation
Last reviewed 2026-06-13 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.