Specifically, the hazard ratios for AF were 1.48 for a single biphasic P-wave, 2.07 for 2 biphasic P-waves, and 3.38 for 3 biphasic P-waves in the inferior leads.

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P wave duration had the highest area under the curve value, sensitivity, and specificity for long-term AF in such cases compared with the other P wave parameters. Conclusions Our head-to-head ...

Conclusion: The P- and f-wave analysis of extended ECG configurations identified specific ECG features allowing improved classification of paroxysmal vs. persistent AF. The extended ECG significantly ...

A healthcare professional will likely order an ECG test to help diagnose coronary artery disease. Learn more here.

In addition, the P wave in lead V1 is all positive, which suggests a right atrial abnormality or hypertrophy, while the P wave in V3 is biphasic and has normal morphology usually seen in lead V1.

The substantial effect of AITC inhalation on the RRi was also reflected in changes in P Wave morphology: converting the simple monophasic positive P waves observed during vehicle inhalation into ...

Abnormal P‐wave indices (PWIs)—reflecting underlying left atrial abnormality—are associated with increased risk of stroke independent of atrial fibrillation. We assessed whether abnormal PWIs are ...