Key result
Frequency domain analysis of the entire signal-averaged P wave showed significantly greater P30 power in patients with paroxysmal atrial fibrillation compared to controls (28.6 vs 22.8; P=0.04).
Why the study?
Does frequency spectrum analysis of the entire P wave provide better differentiation between PAF patients and controls compared to analysis of the terminal 100 msec?
Population
24 patients with idiopathic paroxysmal atrial fibrillation (PAF) and 34 normal controls
Comparison
Frequency spectrum analysis of the entire P wave vs Frequency spectrum analysis of the terminal 100…
Design
Case-control
Authors
Loading...
May support refined PAF detection; leaves open clinical utility pending prospective validation.
Cross-Sectional (n=58)
Does frequency spectrum analysis of the entire P wave provide better differentiation between PAF patients and controls compared to analysis of the terminal 100 msec?
Absolute Event Rate: 28.6% vs 22.8%
p-value: p=0.04
Frequency domain analysis of the entire signal-averaged P wave is less influenced by signal duration and endpoint variations, and better differentiates patients with paroxysmal atrial fibrillation from normal controls than analysis of the terminal P wave alone.
Stafford et al. (1995) conducted a cross-sectional in Paroxysmal atrial fibrillation (n=58). Frequency spectrum analysis of the entire P wave (method A) vs. Frequency spectrum analysis of the terminal 100 msec (method B) was evaluated on Absolute power in frequency band above 30Hz (P30) using method A (p=0.04). Frequency domain analysis of the entire signal-averaged P wave showed significantly greater P30 power in patients with paroxysmal atrial fibrillation compared to controls (28.6 vs 22.8; P=0.04).
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: