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Arrhythmias in Patients with Atrial Defects
Tahmeed Contractor1, Ravi Mandapati1
1Arrhythmia Center, Loma Linda University International Heart Institute, Department of Cardiology, 11234 Anderson Street, Loma Linda, CA 92354, USA.
Cardiac Electrophysiology Clinics
|May 2, 2017
Summary
Atrial arrhythmias frequently occur in patients with atrial septal defects due to various factors. Accurate diagnosis and ablation are possible with advanced mapping techniques, improving patient outcomes.
Area of Science:
- Cardiology
- Electrophysiology
- Cardiac Surgery
Background:
- Atrial arrhythmias are prevalent in patients with atrial septal defects (ASDs).
- Arrhythmias stem from defect-related remodeling and surgical repair scars.
- Atrial fibrillation after patent foramen ovale (PFO) closure is an emerging concern.
Purpose of the Study:
- To explore the causes and management of atrial arrhythmias in ASD patients.
- To highlight the role of advanced mapping in diagnosing and treating these arrhythmias.
- To discuss the increasing incidence of atrial fibrillation post-PFO closure.
Main Methods:
- Review of factors contributing to atrial arrhythmias in ASDs.
- Discussion of entrainment and high-density activation mapping techniques.
- Analysis of atrial fibrillation occurrence after PFO closure.
Main Results:
- Defect remodeling and repair scars are key arrhythmia drivers.
- Mapping techniques facilitate accurate diagnosis and successful ablation.
- Atrial fibrillation is increasingly observed after PFO closure, potentially causing stroke.
Conclusions:
- Understanding arrhythmia mechanisms is crucial for effective management in ASD patients.
- Advanced mapping improves diagnostic accuracy and ablation success.
- Atrial fibrillation post-PFO closure requires further investigation for stroke prevention.
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