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Cardiology MCQ 66. VSD

Q. Most common type of VSD is?
A. Muscular
B. Perimembranous
C. Inlet
D. Outlet

 Answer: B. Perimembranous

 Explanation:
Perimembranous VSD is most common (70%), followed by muscular VSD (24%), doubly committed subarterial VSD (6.4%) and the least common is inlet type of VSD (5.4%). 
Reference:
https://www.researchgate.net/publication/312590503_Frequency_of_Types_of_Ventricular_Septal_Defect_in_Cardiology 
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