Right axis detion is seen In all except-
Right axis detion also may occur as a normal variant (paicularly in children and young adults), as a spurious finding due to reversal of the left and right arm electrodes, or in conditions such as right ventricular overload (acute or chronic), infarction of the lateral wall of the left ventricle, dextrocardia, left pneumothorax, and left posterior fascicular block. The ECG in severe pulmonary hypeension shows P pulmonale, right axis detion, and RV hyperophy. In ostium secundum ASD, electrocardiogram (ECG) usually shows right-axis detion and an rSr' pattern in the right precordial leads representing enlargement of the RV outflow tract. ( Harrison&;s principle of internal medicine,18th edition,pg no.1834 )
Ostium primum ASD
Dextrocardia
Pulmonary hypeension
Ostium secundum ASD
C.V.S