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Published on: May 26, 2015
[Isthmus-dependent right atrial flutter : Clinical course after isthmus ablation]
Clemens Jilek1, Lukas Gleirscher2, Elmar Strzelczyk2
1Peter-Osypka Herzzentrum München, Internistisches Klinikum München Süd, Am Isarkanal 36, 81379, München, Deutschland. research@jilek.de.
Insights
Cavotricuspid isthmus (CTI) ablation is the most effective treatment for typical atrial flutter, reducing mortality and stroke risk compared to drugs. Combined procedures may benefit select patients, considering comorbidities and stroke risk.
Area of Science:
- Electrophysiology
- Cardiology
Context:
- Typical atrial flutter (AFL) management.
- Drug therapy limitations in AFL control.
- Stroke risk stratification in AFL patients.
Purpose:
- Evaluate the efficacy of cavotricuspid isthmus (CTI) ablation for typical AFL.
- Assess the benefits of CTI ablation versus drug therapy.
- Determine indications for combined CTI ablation and pulmonary vein isolation (PVI).
Summary:
- CTI ablation is the most effective rhythm control for typical AFL, outperforming drug therapy.
- Ablation significantly reduces cardiovascular mortality, all-cause mortality, stroke risk, and cardiac decompensation.
- Combined CTI ablation and PVI should be individually assessed in typical AFL patients without AF, particularly those over 54 with comorbidities.
Impact:
- CTI ablation offers superior outcomes for typical AFL compared to pharmacological treatment.
- Anticoagulation duration requires careful adjustment based on stroke and bleeding risks in AFL patients.
- Comprehensive diagnostics, including coronary artery disease screening, are crucial for managing AFL patients.
Abstract:
Ablation of the cavotricuspid isthmus (CTI) to create bidirectional isthmus blockade is the most effective way to achieve rhythm control in typical atrial flutter. Compared with drug therapy, ablation reduces cardiovascular mortality, all-cause mortality, stroke risk, and the risk of cardiac decompensation. Concomitant arrhythmia of atrial flutter is atrial fibrillation (AF); therefore the duration of oral anticoagulation should be adapted according to the risk of stroke and bleeding. A combined procedure of CTI ablation and pulmonary vein isolation (PVI) in patients with typical atrial flutter but without evidence of AF should be evaluated individually especially in patients aged > 54 years depending on (cardiac) comorbidities. The comprehensive diagnostic view should keep in mind not only arrhythmias but also possibly underlying coronary artery disease.
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