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Arrhythmia is a condition characterized by an irregular heart rhythm, with ECG changes that differ based on its origin and nature. The types of arrhythmias discussed below include atrial, junctional, and ventricular arrhythmias.Atrial ArrhythmiasPremature Atrial Complexes (PACs): PACs are early atrial beats caused by stress, caffeine, alcohol, electrolyte imbalances, hypoxia, hyperthyroidism, or certain medications (e.g., bronchodilators and decongestants). The ECG shows early P waves with an...
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Related Experiment Video

Updated: Feb 14, 2026

Ablation of Ischemic Ventricular Tachycardia Using a Multipolar Catheter and 3-dimensional Mapping System for High-density Electro-anatomical Reconstruction
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[Update Ventricular Tachycardia].

Alexander Fürnkranz, Hisaki Makimoto

    Deutsche Medizinische Wochenschrift (1946)
    |February 7, 2018
    PubMed
    Summary
    This summary is machine-generated.

    Catheter ablation is a recommended treatment for symptomatic idiopathic ventricular tachycardia (IVT) and ventricular tachycardia (VT) associated with structural heart disease, offering an alternative to antiarrhythmic drugs and reducing ICD shocks.

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    Area of Science:

    • Cardiology
    • Electrophysiology
    • Medical Devices

    Background:

    • Idiopathic ventricular tachycardia (IVT) and scar-associated ventricular tachycardia (VT) are significant arrhythmias.
    • While ICDs reduce mortality in structural heart disease, repetitive shocks impair quality of life.
    • Current guidelines recommend catheter ablation for specific IVT origins and as an alternative to antiarrhythmic drugs for VT.

    Purpose of the Study:

    • To review current recommendations for catheter ablation in IVT and VT.
    • To discuss the role of catheter ablation in managing ventricular arrhythmias.
    • To highlight novel therapeutic options like subcutaneous ICDs.

    Main Methods:

    • Review of current European Society of Cardiology (ESC) guidelines.
    • Analysis of meta-analyses on antiarrhythmic drugs versus catheter ablation for VT.
    • Discussion of clinical evidence for catheter ablation in IVT and scar-related VT.

    Main Results:

    • Catheter ablation is a primary recommendation for symptomatic right ventricular outflow tract IVT.
    • Catheter ablation is recommended for left ventricular outflow tract IVT and drug-resistant VT.
    • Both amiodarone and catheter ablation reduce recurrent ICD shocks, but amiodarone has common side effects.

    Conclusions:

    • Catheter ablation is a key therapeutic strategy for both IVT and VT.
    • Catheter ablation offers an effective alternative to antiarrhythmic drugs, especially when side effects are a concern.
    • Novel devices like subcutaneous ICDs provide additional management options for select patients.