Causes of wide fixed splitting of second heart sound include all except:: (A) Atrial septal defect, (B) Ebstein anomaly, (C) Total anomalous pulmonary venous return, (D) Right bundle branch block
Answer is B. 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)