ECG Quest > Shapes > P wave > Tall P waves

Tall P waves

A tall P wave is more than 2.5 mm tall (or >1.5 mm in the chest leads V1-V6) at standard settings. This can be associated with right atrial enlargement, but it is not diagnostic. Tall peaked P waves are also known as P pulmonale because of the association between pulmonary hypertension and right atrial enlargement. Exceptionally tall P waves are also known as Himalayan P waves and are classically associated with Ebstein’s anomaly.

See also: P wave

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In the ECGquest archives, this ECG has been tagged with: - Nonspecific baseline artefact Regular Right Axis Deviation Anterior ST depression Inferior ST depression Inverted T waves R in V1 Tall P waves Normal Sinus Rhythm Right atrial enlargement 12-Lead ECG Interpretation CC-BY-NC-SA
ECG Blog #156 (LVH – RVH – LAA – RAA – Strain – Ischemia)