Key result
Total atrial volume was most strongly correlated with signal-averaged P wave duration (R2=0.37, P<0.0001), followed by right atrial volume (R2=0.27, P=0.0003).
Why the study?
Does signal-averaged P wave duration correlate with atrial dimensions measured by echocardiography in patients scheduled for elective echocardiography?
Cross-Sectional (n=74)
Does signal-averaged P wave duration correlate with atrial dimensions measured by echocardiography in patients scheduled for elective echocardiography?
Effect estimate: R2=0.37
p-value: p=<0.0001
Signal-averaged P wave duration correlates significantly with atrial size, most strongly with total atrial volume and right atrial volume.
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Signal-averaged P-wave duration may reflect atrial enlargement; this cross-sectional association leaves open its diagnostic role pending prospective validation.
Dixen et al. (2004) conducted a cross-sectional in Patients scheduled for elective echocardiography (n=74). Atrial size parameters (LAD, LAV, RAV, TAV) was evaluated on Correlation between signal-averaged P wave duration (SAPWD) and atrial size parameters (R2=0.37, p=<0.0001). Total atrial volume was most strongly correlated with signal-averaged P wave duration (R2=0.37, P<0.0001), followed by right atrial volume (R2=0.27, P=0.0003).
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