Medicine Clinical features of ostium secondum type of atrial septal defect are all except – A Occurence of congestive failure in childhood B Atrial arrhythmias C Wide and fixed splitting of the second hea sound D Mid-diastolic rumble along the left sternal border 💡 Explanation Clinical features of ostium secondum type of atrial septal defect are all except - ✓ Correct Answer: A. Occurence of congestive failure in childhood