Routine check up for a middle aged man shows left axis detion in ECG. Left axis detion is seen in all of the following conditions, EXCEPT:
Right axis detion is a feature of dextrocardia (in which the hea lies on the right side of the chest instead of the left). Causes of left axis detion: Inferior wall myocardial infarction Left anterior hemiblock Pacing from the apex of the right or left ventricle Ventricular tachycardia from a focus in the apex of the left ventricle Chronic obstructive airway disease Septum primum defect Wolff-Parkinson-White syndrome Ref: An Introduction to Electro Cardiology by LeoSchamroth, 7th edition, Page 43, 44
Wolff Parkinson-white syndrome
Septum primum
COPD
Dextrocardia