Could a gentle sedation cocktail replace general anesthesia for heart ablation?
NCT ID NCT07734194
First seen Jul 29, 2026 · Last updated Jul 30, 2026 · Updated 1 time
Summary
This trial is testing whether a mild sedation combination of remimazolam and fentanyl can be used instead of general anesthesia during a pulsed-field ablation procedure for atrial fibrillation. The study will enroll 20 adults with paroxysmal or persistent AF and monitor how well the sedation works and how patients experience the procedure. The main question is whether this lighter approach avoids the need to switch to deeper anesthesia.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- a mild sedative combination of remimazolam and fentanyl
- What this could lead to
- If successful, this could offer a simpler, less risky sedation option for people undergoing pulsed-field ablation for atrial fibrillation.
- What could go wrong
- This is a very small, early-stage trial with only 20 participants. The sedation may not be strong enough, requiring a switch to general anesthesia during the procedure.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Participants
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About 20 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jan 2026
- Expected to finish
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Aug 2026
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
Patients with indication for AF ablation
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
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
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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University Hospital Kralovske Vinohrady
RECRUITINGPrague, 100000, Czechia
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