Why the study?
Does extrastimulation at multiple right atrial sites induce atrial fibrillation or flutter in patients with and without documented spontaneous paroxysms?
Population
45 consecutive unmedicated patients without overt heart failure, divided into Group I and Group II.
Comparison
Single twice-threshold extrastimuli applied at… vs Patients without documented AFF despite…
Design
Cross-sectional
Authors
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Inducibility lacks specificity for spontaneous AFF; leaves open the diagnostic utility of atrial extrastimulation in sinoatrial dysfunction.
Does extrastimulation at multiple right atrial sites induce atrial fibrillation or flutter in patients with and without documented spontaneous paroxysms?
Atrial vulnerability to extrastimulation can duplicate paroxysmal AFF but is also seen in patients without documented AFF, limiting its diagnostic specificity for sinoatrial dysfunction.
Engel et al. (1979) studied this question.
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