CARDIOLOGY

Ablation of Accessory Pathways

Oct 13, 2019 by in CARDIOLOGY Comments Off on Ablation of Accessory Pathways

Ablation of Accessory Pathways Introduction Catheter ablation is a highly effective treatment for accessory pathways (APs) that are high risk or cause symptoms. The purpose of this chapter is to:…

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Unusual Types of Accessory Pathways

Oct 13, 2019 by in CARDIOLOGY Comments Off on Unusual Types of Accessory Pathways

Unusual Types of Accessory Pathways Introduction Typical accessory pathways (APs) (bundle of Kent) are nondecremental muscle fibers spanning the tricuspid or mitral annulus. In contrast to single APs, multiple APs…

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Orthodromic Reciprocating Tachycardia

Oct 13, 2019 by in CARDIOLOGY Comments Off on Orthodromic Reciprocating Tachycardia

Orthodromic Reciprocating Tachycardia Introduction Orthodromic reciprocating tachycardia (ORT) is the second most common paroxysmal supraventricular tachycardia (SVT) and the prototypical accessory pathway (AP)-mediated tachycardia. The purpose of this chapter is…

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Atrio-ventricular Nodal Reentrant Tachycardia

Oct 13, 2019 by in CARDIOLOGY Comments Off on Atrio-ventricular Nodal Reentrant Tachycardia

Atrio-ventricular Nodal Reentrant Tachycardia Introduction Atrio-ventricular nodal reentrant tachycardia (AVNRT) is the most common paroxysmal supraventricular tachycardia (SVT). The purpose of this chapter is to: Discuss dual atrio-ventricular (AV) node…

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Basic Evaluation of Accessory Pathways

Oct 13, 2019 by in CARDIOLOGY Comments Off on Basic Evaluation of Accessory Pathways

Basic Evaluation of Accessory Pathways Introduction The typical accessory pathway (AP) (bundle of Kent) is a muscle fiber bridging the atrio-ventricular (AV) groove and providing electrical continuity between the atrium…

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Long RP Tachycardias

Oct 13, 2019 by in CARDIOLOGY Comments Off on Long RP Tachycardias

Long RP Tachycardias Introduction Long RP tachycardias are an unusual type of narrow complex tachycardia (NCT) that includes atrial tachycardia (AT) and four atrio-ventricular (AV) node-dependent tachycardias: 1) pure atypical…

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Ablation of Atrio-ventricular Nodal Reentrant Tachycardia

Oct 13, 2019 by in CARDIOLOGY Comments Off on Ablation of Atrio-ventricular Nodal Reentrant Tachycardia

Ablation of Atrio-ventricular Nodal Reentrant Tachycardia Introduction Catheter ablation is a highly effective treatment for atrio-ventricular nodal reentrant tachycardia (AVNRT). While ablation of the fast pathway (FP) was initially performed,…

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Narrow Complex Tachycardias

Oct 13, 2019 by in CARDIOLOGY Comments Off on Narrow Complex Tachycardias

Narrow Complex Tachycardias Introduction The three major causes of a paroxysmal supraventricular tachycardia (SVT) are 1) atrio-ventricular nodal reentrant tachycardia (AVNRT ˜80%), 2) orthodromic reciprocating tachycardia (ORT ˜15%), and 3)…

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Intracardiac Echocardiography

Oct 13, 2019 by in CARDIOLOGY Comments Off on Intracardiac Echocardiography

Intracardiac Echocardiography Introduction Intracardiac echocardiography (ICE) provides an invaluable tool during invasive electrophysiologic procedures by providing an important link between anatomy and electrophysiology, particularly when integrated with an electro-anatomic map….

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Transeptal Catheterization

Oct 13, 2019 by in CARDIOLOGY Comments Off on Transeptal Catheterization

Transeptal Catheterization Introduction Transeptal catheterization was originally developed to access the left atrium directly for left-sided hemodynamic measurements.1,2,3,4,5 It has become a mainstay technique of electrophysiologist to provide access for…

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