Key result
Electrode catheter recordings at the tricuspid valve in patients with nodal rhythms demonstrated a single His deflection preceding each QRS complex, indicating the His bundle is the pacemaker site.
Why the study?
Is the His bundle the true pacemaker site in so-called A-V nodal rhythms?
Population
Clinical cases of nodal rhythms and A-V dissociation
Design
Case_series
Authors
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His bundle may originate so-called nodal rhythms; hypothesis-generating and should not yet change mapping or ablation practice.
Observational
Is the His bundle the true pacemaker site in so-called A-V nodal rhythms?
This study provides electrophysiological evidence that the His bundle, rather than the A-V node, is the pacemaker site in so-called lower and middle nodal rhythms.
Damato et al. (1969) conducted an observational in Nodal rhythms and A-V dissociation. Electrode catheter recording at the tricuspid valve was evaluated on Site of impulse formation (pacemaker site). Electrode catheter recordings at the tricuspid valve in patients with nodal rhythms demonstrated a single His deflection preceding each QRS complex, indicating the His bundle is the pacemaker site.