Spontaneous alternans in Brugada ECG morphology

A 23-year-old man presented with sick sinus syndrome and Brugada-like ECG pattern. Coved type ECG (type 1) converted to saddleback configuration (type 2) when R-R interval decreased and it changed to coved type pattern with increasing R-R cycle length. During stable heart rate, there was no change i...

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Bibliographic Details
Published in:Journal of interventional cardiac electrophysiology 2006-03, Vol.15 (2), p.131-134
Main Authors: Fazelifar, Amir Farjam, Haghjoo, Majid, Arya, Arash, Kazemi, Babak, Bagherzadeh, Ataollah, Nikoo, Mohammad Hosein, Sadr-Ameli, Mohammad Ali
Format: Article
Language:English
Subjects:
Adult
Brugada Syndrome - diagnosis
Brugada Syndrome - physiopathology
Brugada Syndrome - therapy
Electrocardiography
Equipment Failure
Humans
Male
Pacemaker, Artificial
Sick Sinus Syndrome - physiopathology
Sick Sinus Syndrome - therapy
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Summary:A 23-year-old man presented with sick sinus syndrome and Brugada-like ECG pattern. Coved type ECG (type 1) converted to saddleback configuration (type 2) when R-R interval decreased and it changed to coved type pattern with increasing R-R cycle length. During stable heart rate, there was no change in Brugada ECG pattern. The R-R interval effect on these patterns can be explained by intensity or kinetics of ion currents and autonomic tone.
ISSN:1383-875X
1572-8595
DOI:10.1007/s10840-006-8263-x