Key result
Organized activation during atrial fibrillation was present 72% of the time on the trabeculated right atrium compared to 19% on the smooth right atrium (P<0.01), influencing surface ECG F waves.
Population
16 patients with atrial fibrillation (chronic, n = 14)
Design
Cross-sectional
Follow-up
50 minutes
Authors
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May influence ECG F-wave interpretation in AF; extends evidence of organized RA activation but remains hypothesis-generating.
Observational (n=16)
Absolute Event Rate: 72% vs 19%
p-value: p=<0.01
Organized activation during atrial fibrillation is frequently present in the right atrium and directly influences the amplitude and polarity of F waves on the surface ECG.
Roithinger et al. (1998) conducted an observational in Atrial fibrillation (n=16). Endocardial mapping was evaluated on Organized activation time on the trabeculated versus smooth right atrium (p=<0.01). Organized activation during atrial fibrillation was present 72% of the time on the trabeculated right atrium compared to 19% on the smooth right atrium (P<0.01), influencing surface ECG F waves.
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