Key result
PAT with block features a distinct ECG pattern primarily linked to digitalis therapy.
Why the study?
Paroxysmal auricular tachycardia with block has been considered of dubious clinical significance and questionable origin, necessitating detailed characterization and differentiation from other atrial arrhythmias.
Comparison
Digitalis therapy exposure vs non-exposure
Design
Review and analysis of ECG patterns
Authors
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May prompt digitalis toxicity evaluation on this ECG pattern; leaves open validation in current antiarrhythmic eras.
Highlights the clinical significance and distinct ECG pattern of paroxysmal auricular tachycardia with block, primarily induced by digitalis therapy and its interaction with potassium.
Alexander C. Keyl (1959) conducted a review in Paroxysmal auricular tachycardia with block (n=150). Digitalis therapy was evaluated. Based on 150 episodes, paroxysmal auricular tachycardia with block is a common disorder with a distinct ECG pattern, and its etiology is primarily related to digitalis therapy.
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