Arquivos brasileiros de cardiologia · 1998
[Evaluation of fragmented potentials in right bundle branch block without structural myocardium abnormalities. Study made by signal-averaged electrocardiogram on time and frequency domain].
Сравнительное исследованиеАннотация на английскомСтатьяНазвание и аннотация: Перевод в очереди
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Ginefra P, Barbosa E C, Christiani L A, Leite M de F, Barbosa P R, Boghossian S H, Scott M, Rangel I M, Silva R S, Albanesi Filho S M
Аннотация
PURPOSE: To evaluate if the presence of right bundle branch block (RBBB), without structural myocardial abnormalities (SMA) can generate fragmented potentials (FP) and spectral turbulence on signal-averaged electrocardiogram (SAECG).
METHODS: Twelve children with atrial septal defect (ASD) and incomplete right bundle branch block (IRBBB without SMA (group I) were compared to 17 children with post-operative tetralogy of Fallot (TF) with CRBBB, all with SMA, 5 with ventricular premature beats and 2 with sustained ventricular tachycardia (group II). All had SAECG on time (TD) and frequency domain (FD) with 5 variables analysed.
RESULTS: All patients of group I had normal variables, in contrast with group II which presented abnormal variables suggesting FP and ST.
CONCLUSION: In ASD without SMA, the isolated IRBBB did not generate FP and ST.
METHODS: Twelve children with atrial septal defect (ASD) and incomplete right bundle branch block (IRBBB without SMA (group I) were compared to 17 children with post-operative tetralogy of Fallot (TF) with CRBBB, all with SMA, 5 with ventricular premature beats and 2 with sustained ventricular tachycardia (group II). All had SAECG on time (TD) and frequency domain (FD) with 5 variables analysed.
RESULTS: All patients of group I had normal variables, in contrast with group II which presented abnormal variables suggesting FP and ST.
CONCLUSION: In ASD without SMA, the isolated IRBBB did not generate FP and ST.