Key result
Lone paroxysmal AF is linked to longer P wave duration and altered frequency-domain values.
Why the study?
The influence of age, lead axis, frequency of arrhythmic episodes, and atrial dimensions on signal-averaged P wave ECG in patients with lone paroxysmal atrial fibrillation was not fully characterized.
Observational (n=71)
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P-wave signal-averaging may stratify lone PAF frequency; leaves open clinical utility pending validation.
Michelucci et al. (1996) conducted an observational in Lone paroxysmal atrial fibrillation (n=71). Lone paroxysmal atrial fibrillation vs. Normal subjects was evaluated on Signal-averaged P wave parameters in time and frequency domains. Lone paroxysmal atrial fibrillation was associated with significantly longer P wave duration compared to normal subjects, with frequent attacks yielding higher frequency-domain values.
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