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A Study Of Stellate Ganglion Blockade With Liposomal Bupivacaine In Preventing Atrial Fibrillation After Isolated Coronary Artery Bypass Grafting Surgery

Effectiveness Of Liposomal Bupivacaine Stellate Ganglion Blockade In Preventing Atrial Fibrillation After Isolated Coronary Artery Bypass Grafting Surgery: A Randomized Placebo-Controlled Trial

Status
Not yet recruiting
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07570940
Enrollment
450
Registered
2026-05-06
Start date
2026-09-14
Completion date
2030-09-01
Last updated
2026-09-09

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Atrial Fibrillation, Coronary Artery Disease

Brief summary

The purpose of this study is assess the incidence of postoperative atrial fibrillation (POAF) within one week of surgery in patients who receive pre-surgical stellate ganglion blockade with liposomal bupivacaine, compared to those receiving a saline placebo, using continuous electrocardiographic monitoring via wearable ECG devices.

Interventions

DRUGLiposomal bupivacaine

Patients undergoing isolated coronary artery bypass grafting will receive a stellate ganglion block using liposomal bupivacaine prior to surgery

DRUGPlacebo

Patients undergoing isolated coronary artery bypass grafting will receive a saline placebo injection to the stellate ganglion prior to surgery

Sponsors

Mayo Clinic
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Caregiver)

Eligibility

Sex/Gender
ALL
Age
40 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Adults aged ≥40 years scheduled to undergo isolated coronary artery bypass grafting will be eligible. * Cases will also remain eligible if, after the initial surgical listing, additional procedures-such as valvular interventions or septal myectomy-are performed, OR if coronary artery bypass grafting (CABG) is listed as the primary intervention with other procedures noted as possible additional interventions. * Cases will also remain eligible if additional procedures-such as left atrial appendage ligation, MAZE procedure, cryotherapy, or pulmonary vein isolation-are concomitantly listed with the CABG.

Exclusion criteria

* Permanent atrial fibrillation * Mechanical circulatory support implant or explant * Procedures not requiring cardiopulmonary bypass * Heart and/or lung transplant patients * Active infection/sepsis * Pre-operative anti-arrhythmic use (aside from beta-blockers). * Participant has a known allergy to adhesives or hydrogels. * Participant has a visible skin injury or broken skin at the location for study device placement. * Participant does not have the competency to wear the device for the prescribed patching period. * Participant has a neuro-stimulator, as it may disrupt the quality of ECG data. * Participants who are pregnant. In accordance with Mayo Clinic's standard cardiac surgery protocol, all women of childbearing potential undergo routine preoperative pregnancy testing. Pregnancy status will therefore be confirmed prior to enrollment. Any participant with a positive pregnancy test will be deemed ineligible and will not be enrolled in the study. * Participants who lack the capacity to provide informed consent will not be approached or enrolled in this study.

Design outcomes

Primary

MeasureTime frameDescription
Incidence of new-onset postoperative atrial fibrillation (POAF) within one week of isolated coronary artery bypass grafting (CABG) surgery1 weekTotal number of patients to experience postoperative atrial fibrillation within one week of CABG surgery.

Secondary

MeasureTime frameDescription
Total duration of postoperative atrial fibrillation (POAF) episodes within the first postoperative week1 weekDuration of postoperative atrial fibrillation episodes will assessed via continuous ECG monitoring and reported in minutes
Number of patients with successful stellate ganglion blockade1 weekSuccess rate of the stellate ganglion blockade is defined as a ≥1.0°C increase in ipsilateral hand skin temperature from baseline and/or a reduction in skin sympathetic nerve activity (SKNA) as measured by noninvasive surface recordings pre- and post-block.

Countries

United States

Contacts

CONTACTAnesthesia Clinical Research Unit (ACRU) Study Team
ripollsanz.juan@mayo.edu866-265-9263
PRINCIPAL_INVESTIGATORJuan G. Ripoll Sanz, MD

Mayo Clinic

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 10, 2026