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Clinical Trial Summary

Catheter ablation (CA) is an established therapeutic option for patients with symptomatic atrial fibrillation (AF). During the procedure, patients are usually sedated and analgesized, most commonly by administration of Propofol combined with opioids under the supervision of the electrophysiologist. However, due to the depressive effect of Propofol on the respiratory system, this regimen is not without risk. Dexmedetomidine is a highly selective alpha 2 agonist that demonstrates both analgesic and hypnotic properties with only weak effect on the respiratory system. The pharmacological profile of Dexmedetomidine may be advantageous for sedation during CA of AF. The aim of this randomized trial is to test this hypothesis and explore the safety and efficacy of Dexmedetomidine during CA of AF.


Clinical Trial Description

Atrial fibrillation (AF) is the most common arrhythmia. In symptomatic patients, electroanatomic mapping aided catheter ablation (CA) is an established therapeutic option. The intervention may last several hours, during which patients are required to lie as still as possible, as inadequate patient movements disturb the electroanatomic map, prolong the intervention and increase its complication risks. Therefore patients are usually sedated and analgesized, most commonly by administration of Propofol combined with opioids under the supervision of the electrophysiologist. Despite its wide use, this regimen is not without risk, as Propofol has a pronounced depressive effect on the respiratory system. Dexmedetomidine is a highly selective alpha 2 agonist that demonstrates both analgesic and hypnotic properties with only weak respiratory depression. By reducing sympathetic activity it also reduces the stress response to an intervention. For these reasons, Dexmedetomidine is commonly used in intensive care units, where it has been shown to be well tolerated. Consequently, its range of application has been increasingly widened and good experience has been made with its use in transfemoral valve replacement procedures or gastroenterological interventions. The pharmacological profile of dexmedetomidine may be also advantageous for sedation during CA of AF. The aim of this randomized trial is to test this hypothesis and explore the safety and efficacy of Dexmedetomidine during CA of AF. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT03844841
Study type Interventional
Source University Hospital Inselspital, Berne
Contact
Status Completed
Phase Phase 4
Start date July 1, 2019
Completion date December 31, 2020

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