Vertical axis

vertical axis means that the overall direction of ventricular depolarisation is straight downwards (head to toe). This direction is also known as +90 degrees. If the axis is vertical, Lead I will be isoelectric and aVF positive. A vertical axis is classically caused by chronic lung disease, but there are other causes.

See also: QRS axis

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ECG Library (11)

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In the ECGquest archives, this ECG has been tagged with: - 12-Lead Bradycardia Inverted T waves Vertical axis Sinus bradycardia ECG of the Week CC-BY-NC-SA
ECG of the Week – 28th January 2019 – Interpretation

This ECG is from a teenage girl who presented with ongoing weight loss (BMI 13) and a known eating disorder.

This ECG shows sinus bradycardia (36) and T wave inversion in V1-2 and aVL.

In the ECGquest archives, this ECG has been tagged with: - Dyspnoea Palpitations 12-Lead Serial 12-lead Tachycardia Vertical axis Wide QRS Right Ventricular Outflow Tract Tachycardia Wide complex tachycardia ECG Guru CC-BY-NC-SA
Instructors’ Collection ECG: Ventricular Tachycardia In A Patient With Myopathy – 3 min later