Key result
The modern concept of AV nodal reentrant tachycardia involves a complex three-dimensional model, requiring careful application of radiofrequency energy to minimize injury to AV nodal conduction.
Understanding the complex three-dimensional anatomy and physiology of the AV junction is crucial for safe and successful radiofrequency ablation of AVNRT.
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Demands careful RF application in AVNRT ablation to minimize nodal injury; extends traditional 2D models yet leaves open prospective validation.
There are still some AV nodal reentrant tachycardias with unusual AV nodal properties that need further study to understand these complexities. Accordingly, the two-dimensional model with alpha and beta pathways in the AV nodal reentrant tachycardia circuit certainly is an oversimplification and does not explain adequately the anatomic and physiologic complexity of the AV junctional area. The modern concept suggests that this arrhythmia takes place in a highly complex three-dimensional model with nonuniform anisotropy and discontinuous conduction property in the AV junctional area. Application of radiofrequency energy within the AV junctional area should always be performed carefully to achieve a successful ablation procedure and to minimize possible injury of AV nodal conduction.
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Chen et al. (1998) conducted a review in AV Nodal Reentrant Tachycardia. Radiofrequency ablation was evaluated. The modern concept of AV nodal reentrant tachycardia involves a complex three-dimensional model, requiring careful application of radiofrequency energy to minimize injury to AV nodal conduction.
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