A 62-year-old man without previous cardiac history presented to the hospital with complaints of near syncope and exercise intolerance. The presenting electrocardiogram (Fig. 128.1) demonstrates sinus rhythm with a normal PR interval and narrow QRS on half of the conducted beats, intermittent AV block, and alternating left and right bundle aberrancy on the other half of the conducted beats. © Springer-Verlag London Limited 2011.
CITATION STYLE
Callans, D. J. (2011). Case 128. In Cardiac Electrophysiology: Clinical Case Review (pp. 495–496). Springer London. https://doi.org/10.1007/978-1-84996-390-9_128
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