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Case Reports
. 1993 Mar;46(3):201-4.

[Exercise-induced atrioventricular block]

[Article in Spanish]
J M Barbero  1 , A Goicolea, M López Gil, J M Grande, F García-Cosío
Affiliations
  • PMID: 8488325
Case Reports

[Exercise-induced atrioventricular block]

[Article in Spanish]
J M Barbero et al. Rev Esp Cardiol. 1993 Mar.

Abstract

Exercise-induced atrioventricular block in patients with normal atrioventricular conduction at rest is uncommon. Electrophysiologic studies have documented block distal to the atrioventricular node in these patients. Implantation of a permanent pacemaker is recommended because of a high incidence of subsequent symptomatic block. We report three symptomatic patients with exercise-induced atrioventricular block. Two patients showed a bundle branch block in the baseline electrocardiogram, suggesting a distal location of the block. In the remainder, with a normal QRS, the electrophysiologic study revealed AV block within the His bundle in response to atrial pacing.

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