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Updated: Jun 16, 2026
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The WATCHMAN Left Atrial Appendage Closure Device for Atrial Fibrillation
Published on: February 28, 2012
Propofol effects on atrial fibrillation wavefront delays
Raquel Cervigón1, Javier Moreno, José Millet
1Departamento de Ingeniería Eléctrica, Electrónica y de Control, Universidad de Castilla-La Mancha, 16071 Cuenca, Spain. raquel.cervigon@uclm.es
IEEE Transactions on Bio-Medical Engineering
|February 10, 2010
Summary
Propofol sedation during atrial fibrillation (AF) ablation affects atrial synchronization differently in each atrium. The right atrium becomes more synchronized, while the left atrium shows decreased synchronization.
Area of Science:
- Cardiology
- Anesthesiology
- Biomedical Engineering
Background:
- Cardiac activity during atrial fibrillation (AF) can be modulated by the autonomic nervous system.
- Understanding the impact of anesthetic agents on AF is crucial for ablation procedures.
Purpose of the Study:
- To introduce a novel method for quantifying propofol's effects on AF during ablation.
- To assess if propofol sedation influences AF itself.
- To elucidate the autonomic nervous system's role in AF.
Main Methods:
- Measurement of synchronization and delay indexes between adjacent intracavitary electrodes.
- Analysis of atrial activation patterns to distinguish between single and independent wavefronts.
- Quantification of autonomic modulation effects during propofol administration.
Main Results:
- Propofol administration led to increased synchronization in the right atrium.
- Synchronization index decreased in the left atrium following propofol administration.
- Differential effects of propofol on atrial synchronization were observed between the right and left atria.
Conclusions:
- Propofol differentially affects atrial synchronization in patients with AF.
- The novel method provides insights into autonomic influences on AF during anesthesia.
- Further research is warranted to explore the clinical implications of these findings.
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