Why the study?
Does digitalis overdosage cause paroxysmal atrial tachycardia with block in patients with congestive heart failure?
Population
Patients with congestive heart failure
Design
Review
Authors
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May indicate digitalis toxicity in paroxysmal atrial tachycardia with block, warranting discontinuation rather than escalation; challenges consensus on digitalis for supraventricular tachycardias.
Does digitalis overdosage cause paroxysmal atrial tachycardia with block in patients with congestive heart failure?
Highlights the danger of digitalis-induced atrial tachycardia with block and the hazard of misdiagnosing it as a standard supraventricular tachycardia requiring more digitalis.
Lown et al. (1959) studied this question.