Clinical trial Recruiting at 1 site Observational Ages 18 and up

Mild Sedation with Remimazolam and Fentanyl During Pulsed-Field Ablation for Atrial Fibrillation

Official title: Remimazolam-Fentanyl Mild Conscious Sedation Regimen in Pulsed-Field Ablation for Paroxysmal Atrial Fibrillation

Run by Charles University, Czech Republic · NCT07734194 · Data updated 2026-11-12

This study tests whether a light, monitored sedation with remimazolam and fentanyl during REM (pulsed-field) ablation for AF can replace deeper anesthesia in adults.

More Atrial Fibrillation (AF) trials

Quick facts

Study typeObservational
Ages18 Years and up
SexAll
Enrollment20 (estimated)
SponsorCharles University, Czech Republic
Academic / other
Locations1 site (Prague)
StatusRecruiting
StartedJanuary 1, 2026
Main results expectedAugust 1, 2026
Study endsAugust 1, 2026
Registry record updatedJuly 29, 2026
Trial IDNCT07734194 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults (18+) with paroxysmal or persistent AF undergoing FARAPULSE pulsed-field ablation who meet inclusion criteria and do not have the listed high-risk exclusions.

Probably not a fit

Patients with certain comorbidities or airway/allergic risks listed in the exclusions may not benefit from this approach.

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

What this trial studies

This prospective, single-arm study will assess the feasibility and safety of mild conscious sedation using remimazolam with fentanyl during FARAPULSE pulsed-field ablation for paroxysmal atrial fibrillation. Participants will be monitored carefully around the procedure to evaluate sedation-related safety outcomes and their experience of the procedure. The study does not specify a control group or intervention beyond the sedation regimen. Eligibility includes adults with AF who meet defined criteria, while several cardiac and airway conditions are exclusionary to minimize risk. The lead sponsor is Charles University in the Czech Republic, with the study conducted at University Hospital Královské Vinohrady in Prague.

Why it matters

Potential benefit: If successful, patients may experience lighter sedation with potentially faster recovery and fewer anesthesia-related risks during ablation for AF.

How similar studies have gone: Similar approaches in sedation for complex AF procedures have shown feasibility in other settings, though this exact regimen and procedure combination is novel in this context.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

Age above 18y Paroxysmal or persistent AF written agreement with inclusion to the study

Exclusion Criteria:

BMI \> 35kg/m2 EF of the left ventricle \< 40% OSA syndrome on therapy anticipated difficult airway severe COPD significant valvulopathy (3/4 or more) symptomatic heart failure irrespective of ejection fraction severe pulmonary hypertension benzodiazepine drugs medication (or other sedative drugs at the discretion of the anesthesiologist) myasthenia gravis

Where it's running

  • University Hospital Kralovske Vinohrady
    Prague, Czechia
    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.