Abstract
Exercise seldom provokes tachycardia in patients with paroxysmal supraventricular tachycardia (PSVT). This report presents a case of exercise-induced uncommon atrioventricular nodal reentrant tachycardia (AVNRT) with sick sinus syndrome. Treadmill exercise testing provoked AVNRT of long RP' with good reproducibility. Uncommon AVNRT was confirmed by the lack of atrial pre-excitation during PSVT and para-Hisian pacing. The patient has been successfully treated with verapamil and DDD pacing for 5 years.
MeSH terms
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Aged
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Anti-Arrhythmia Agents / therapeutic use
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Atrial Premature Complexes / physiopathology
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Calcium Channel Blockers / therapeutic use
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Electric Stimulation
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Electrocardiography
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Exercise Test / adverse effects*
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Heart Conduction System / physiopathology
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Humans
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Male
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Pacemaker, Artificial
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Sick Sinus Syndrome / complications*
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Tachycardia, Atrioventricular Nodal Reentry / complications
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Tachycardia, Atrioventricular Nodal Reentry / etiology*
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Verapamil / therapeutic use
Substances
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Anti-Arrhythmia Agents
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Calcium Channel Blockers
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Verapamil