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Left axis deviation

Left axis deviation is a condition where the QRS complex is positive in lead I, but negative in lead II. Left axis deviation is also described as an ECG with the mean electrical axis from -30° to -90°. Common causes include left ventricular hypertrophy, left anterior fascicular block, inferior myocardial infarction, hypertension and emphysema. [1]

See also

References

v · d · eCardiovascular disease: heart disease · Circulatory system pathology (I00–I52, 390–429)
Ischaemic

Active ischemia

Layers

Valves

Conduction/
arrhythmia

Premature contraction

Flutter/fibrillation

Other/ungrouped

Cardiomegaly
Other

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