Preexcitation in Hypertrophic Cardiomyopathy: A Case of a Fasciculoventricular Mahaim Fiber

STELLBRINK, C., et al.: Preexcitation in Hypertrophic Cardiomyopathy: A Case of a Fasciculoventricular Mahaim Fiber. A patient with hypertrophic cardiomyopathy (HCM) who presented with preexcitation pattern on the surface ECG suggestive of the Wolff‐Parkinson‐White (WPW) syndrome is described. Intra...

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Bibliographic Details
Published in:Pacing and clinical electrophysiology 1995-09, Vol.18 (9), p.1717-1720
Main Authors: STELLBRINK, CHRISTOPH, KUNZE, KLAUS-PETER, HANRATH, PETER
Format: Article
Language:English
Subjects:
Adult
Bundle of His - physiopathology
Cardiomyopathy, Hypertrophic - complications
Cardiomyopathy, Hypertrophic - diagnosis
Electrocardiography
Heart Conduction System - physiopathology
Heart Ventricles - physiopathology
Humans
hypertrophic cardiomyopathy
Mahaim fiber
Male
Pre-Excitation, Mahaim-Type - complications
Pre-Excitation, Mahaim-Type - diagnosis
preexcitation
sudden death
Tachycardia, Atrioventricular Nodal Reentry - physiopathology
Wolff-Parkinson-White Syndrome - diagnosis
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Summary:STELLBRINK, C., et al.: Preexcitation in Hypertrophic Cardiomyopathy: A Case of a Fasciculoventricular Mahaim Fiber. A patient with hypertrophic cardiomyopathy (HCM) who presented with preexcitation pattern on the surface ECG suggestive of the Wolff‐Parkinson‐White (WPW) syndrome is described. Intracardiac electrophysiological study revealed a fixed anomalous QRS complex and a short fixed His‐ventricular interval indicating a fasciculoventricular Mahaim fiber. As this specific form of accessory connection does not cause reentrant tachycardias, no treatment was required. It is important to distinguish this entity from atriofascicular or nodoventricular Mahaim fibers or the WPW syndrome in patients with HCM showing a preexcitation pattern in the surface ECG, as these may cause life‐threatening arrhythmias in this patient population.
ISSN:0147-8389
1540-8159
DOI:10.1111/j.1540-8159.1995.tb06995.x