Key result
Incorrect high V1 and V2 placement alters P wave morphology, producing negative deflections and rSr' patterns.
Why the study?
Does incorrect placement of V1-V2 electrodes alter P-wave patterns compared to correct placement in healthy individuals?
Cross-Sectional (n=101)
Does incorrect placement of V1-V2 electrodes alter P-wave patterns compared to correct placement in healthy individuals?
p-value: p=<.001
Specific P-wave patterns, such as a negative component in V2 or a negative P wave in V1, can alert clinicians to the incorrect high placement of V1-V2 electrodes.
No takes yet. Share an insight, caveat, or question.
May flag high V1-V2 placement via negative P waves; leaves open validation in cardiac patients before changing ECG interpretation.
Javier García‐Niebla (2009) conducted a cross-sectional in Apparently healthy individuals (n=101). Incorrect placement of V1 and V2 electrodes (second and third intercostal spaces) vs. Correct placement of V1 and V2 electrodes (fourth intercostal space) was evaluated on Differences in 5 ECG P wave patterns (p=<.001). Incorrect high placement of V1 and V2 electrodes significantly altered P wave morphology, producing negative P waves in V1 and V2 and rSr' patterns (P < .001).
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