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[Myotonic dystrophy and bundle-branch re-entrant tachycardia]
Carlos J Ramírez1, Diego A Rodríguez, Víctor M Velasco
1Departamento de Electrofisiología y Marcapasos. Fundación Clínica A. Shaio. Bogotá. Colombia. electrofisio@shaio.com
Revista Espanola De Cardiologia
|October 18, 2002
Summary
Myotonic dystrophy patients can experience dangerous arrhythmias like ventricular tachycardia and fibrillation. Catheter ablation and defibrillator implantation successfully treated a patient with these conditions.
Area of Science:
- Cardiology
- Clinical Electrophysiology
- Genetics
Background:
- Myotonic dystrophy is a multisystem disorder with potential cardiac complications.
- Atrial fibrillation with a high ventricular rate is a known cardiac manifestation.
Observation:
- A 37-year-old man with myotonic dystrophy presented with atrial fibrillation and high ventricular rate.
- Treatment with amiodarone led to cardiac arrest.
Findings:
- Electrophysiological study revealed bundle-branch reentrant ventricular tachycardia and ventricular fibrillation.
- Successful catheter ablation of the right bundle branch and implantation of a bicameral defibrillator were performed.
Implications:
- This case highlights the complex management of arrhythmias in myotonic dystrophy.
- Understanding the mechanisms and treatment options is crucial for patient outcomes.