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Revista argentina de cardiología
versión On-line ISSN 1850-3748
Resumen
KILLINGER, Gisela et al. Transient High Degree AV Blockade Due to Node Engagement and Vagal Tone in an Athlete: Is Permanent Cardiac Electric Stimulation Necessary?. Rev. argent. cardiol. [online]. 2005, vol.73, n.6, pp.463-465. ISSN 1850-3748.
An asymptomatic athlete was evaluated due to long term AV block with pauses up to 4.7 seconds in 24 hs. ECG monitoring: the electro-physiologic study showed a suprahisian Mobitz type I, second degree AV block and the ajmaline test was negative. In the Holter ECG monitoring the greatest degree of AV blockade was coincident with the lowest sinus rate. These findings were consistent with a chronic AV node disease, which produced high degree block paroxysms due to a predominance of vagal tone. No permanent electric cardiac stimulation was indicated and the patient was allowed to continue exercising.
Palabras clave : AV nodal block; Electrophysiologic study; Vagal hyperactivity; Ajmaline.