Causes of wide fixed splitting of second heart sound include all except:
Atrial septal defect
Ebstein anomaly
Total anomalous pulmonary venous return
Right bundle branch block
b. Ebstein anomaly(Ref: Nelson's 20/e p 2190)Wide fixed splitting of second heart sound is seen in Atrial septal defect, Total anomalous pulmonary venous return (TAPVC) and Right bundle branch block (RBBB)
C.V.S.