Abstract
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.
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Fazelifar, A.F., Haghjoo, M., Arya, A. et al. Spontaneous alternans in Brugada ECG morphology. J Interv Card Electrophysiol 15, 131–134 (2006). https://doi.org/10.1007/s10840-006-8263-x
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DOI: https://doi.org/10.1007/s10840-006-8263-x