R in V1

dominant R wave in lead V1 has several causes, including right ventricular hypertrophy, right bundle branch block, myocardial infarction, Wolff-Parkinson-White syndrome, lead misplacement or dextrocardia. It can be normal in young people.

See also: QRS shapes

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Featured Example

References

ECG Library (16)

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In the ECGquest archives, this ECG has been tagged with: - 12-Lead Anterior ST depression Inverted T waves R in V1 RVH Dr Smith's ECG Blog CC BY-NC
ST Depression and T-wave inversion in V2 and V3.

This ECG is from a middle aged male dialysis patient who was found disorganised and paranoid.

This ECG shows ST depression and T wave inversion in V2-3 due to right ventricular hypertrophy.

In the ECGquest archives, this ECG has been tagged with: - 12-Lead Nonspecific baseline artefact Anterior ST depression Inferior ST depression Inverted T waves R in V1 Regular Right Axis Deviation Tall P waves Normal Sinus Rhythm Right atrial enlargement ECG Interpretation CC-BY-NC-SA
ECG Blog #156 (LVH – RVH – LAA – RAA – Strain – Ischemia)
In the ECGquest archives, this ECG has been tagged with: - Cardiac arrest Loss of consciousness 12-Lead Inverted T waves R in V1 Right Axis Deviation RVH Dr Smith's ECG Blog CC BY-NC
ST Depression and T-wave Inversions after ROSC from Resp and Cardiac Arrest after Head Trauma