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Mild Sedation Method for Heart Rhythm Procedure in Atrial Fibrillation Patients

Tests a light sedation drug mix during heart rhythm treatment in adults with atrial fibrillation.

Key facts

Who runs it
Charles University, Czech Republic
Where
Prague, CzechiaSee the site
Trial code
Registry title
Remimazolam-Fentanyl Mild Conscious Sedation Regimen in Pulsed-Field Ablation for Paroxysmal Atrial Fibrillation
Status
Recruiting
People taking part
20 people, planned
Started
1 Jan 2026
Planned end
1 Aug 2026
Type of study
Observational
Record updated
29 July 2026

Who can take part

AI summary

From the trial's eligibility criteria. Machine-read from the registry text on this page, so it can be wrong. The registry text below and the trial team decide who can take part.

The trial is looking for adults with paroxysmal or persistent atrial fibrillation who are having pulsed-field ablation and agree in writing to take part.

Age
Above 18 years
Sex
All sexes can join.
Disease stage
Paroxysmal or persistent atrial fibrillation (AF).
Earlier treatment
People taking benzodiazepine drugs (or other sedative drugs, at the anaesthesiologist's discretion) cannot join.

Main reasons for not taking part

  • BMI above 35kg/m2
  • Left ventricle ejection fraction (EF) below 40%
  • Sleep apnoea (OSA) syndrome on therapy, or an expected difficult airway
  • Severe COPD, severe pulmonary hypertension, or significant valve disease (3/4 or more)
  • Symptomatic heart failure or myasthenia gravis

The registry criteria, word for word

Show all 2 criteriaShow less

Who can take part

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

Who cannot take part

  • 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 in Czechia

  • University Hospital Kralovske VinohradyPrague, CzechiaContact: Marek Hozman, MD, PhDTaking people

About the trial

What the trial wants to find out

This prospective single-arm study will evaluate whether mild conscious sedation using remimazolam with fentanyl is a feasible alternative to deeper sedation or general anaesthesia during FARAPULSETM pulsed-field ablation for paroxysmal atrial fibrillation, with careful periprocedural monitoring and assessment of both sedation-related safety outcomes and patient-reported procedural experience.

The group in the trial

  • Cohort 1

    Sedation will be carried by remimazolam (Paion Pharma, Aachen, Germany), and bolus doses of fentanyl will be used as an analgesic agent. At the beginning of the anesthesiologic procedures, the patients will receive an intravenous dose of 50 µg fentanyl followed by a bolus dose of remimazolam 5 mg (patients younger than 65 years with a weight over 50 kg), or remimazolam 2.5-5 mg (patients with age \> 65 years or ASA classification III-IV). The sedation will continue by intravenous infusion of remimazolam 0.5 mg/kg/h. Before the start of pulses, sedation/analgesia will be strengthened by bolus application of remimazolam 1,25-2.5 mg, and fentanyl 50-100 ug, respectively. At the same time, magnesium sulphate 1 g will be applied by a slow infusion. Additional doses of remimazolam/fentanyl could be administered and recorded in study protocols.

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?

Contact the study team: see the registry record → Contacts and Locations

Print a page for my doctor

Data and sources

Registry record
Listed on ClinicalTrials.gov.
Official title
Remimazolam-Fentanyl Mild Conscious Sedation Regimen in Pulsed-Field Ablation for Paroxysmal Atrial Fibrillation
Plain-language title
Mild Sedation Method for Heart Rhythm Procedure in Atrial Fibrillation PatientsGenerated from the registry record. The registry title is the official one.
AI summary
From the trial's eligibility criteria. Read by machine on 13 November 2026.
Record updated
29 July 2026