J Korean Med Assoc.  2016 May;59(5):374-378. 10.5124/jkma.2016.59.5.374.

Catheter ablation for treatment of tachyarrhythmia

• Oh S

• KMID: 2420636
• DOI: http://doi.org/10.5124/jkma.2016.59.5.374

Abstract

Catheter ablation is one of the major treatment options for patients with arrhythmia. It has been widely used since radiofrequency energy was adopted as a power source. Technical progress has resulted in better outcomes, better efficiency, and safer procedures. However, mechanisms of some forms of arrhythmia such as atrial fibrillation have not been fully elucidated in order to obtain a more favorable success rate. Therefore, progress in the basic research field to understand the mechanisms and substrates of arrhythmia as well as technical progress is essential for overcoming current obstacles in this therapeutic method.

Keyword

Catheter ablation; Atrial fibrillation; Supraventricular tachycardia; Ventricular tachycardia; Radiofrequency

MeSH Terms

Arrhythmias, Cardiac
Atrial Fibrillation
Catheter Ablation*
Catheters*
Electric Power Supplies
Humans
Tachycardia*
Tachycardia, Supraventricular
Tachycardia, Ventricular

Figure

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  Figure 1 Intracardiac echocardiography image during atrial fibrillation ablation. LA, left atrium; Lasso, circular-mapping catheter for mapping; LIPV, left inferior pulmonary vein; LSPV, left superior pulmonary vein.

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  Figure 2 Electroanatomical mapping using Carto system (Biosense-Webster, Diamond Bar, CA, USA). Reconstructed cardiac computed tomography images of the right and left atria are integrated in this electroanatomical map. Red dots indicate ablation sites around the pulmonary veins. Pink dots indicate ablation sites showing complex fractionated electrogram.

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  Figure 3 Electroanatomical mapping using NavX system (St. Jude Medical, St. Paul, MN, USA). Ablation catheter tip and circular-mapping catheter are visualized in this map image. White dots indicate ablation sites.

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