Why the study?
Does His bundle recording determine the site of origin of identical QRS complexes during atrial fibrillation better than 12-lead ECG alone?
Does His bundle recording determine the site of origin of identical QRS complexes during atrial fibrillation better than 12-lead ECG alone?
His bundle recording can differentiate between intraventricular aberrant conduction and ventricular tachycardia when 12-lead ECG shows identical QRS complexes during atrial fibrillation.
His bundle recording may differentiate mechanisms of identical QRS salvos in AF when ECG is inconclusive; case report leaves open routine adoption.
In a patient with chronic congestive heart failure, right bundle branch block-shaped QRS complexes occurred in salvos during atrial fibrillation. The site of origin of these complexes could not be determined from the 12-lead ECG alone. Recording of a His bundle electrogram showed that both intraventricular aberrant conduction and ventricular tachycardia were responsible for salvos having the same QRS complexes in the 12-lead ECG.
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Brugada et al. (1983) studied this question.
Synapse has enriched one closely related paper. Consider it for comparative context: