MRCP UK EXAMINATIONS

Detailed explanation-1: -TRUE or FALSE: A small muscular ventricular septal defect has a high probability of self-closure, and these types of VSDs are found in the lower portion of the ventricular septum. The answer is TRUE.

Detailed explanation-2: -A ventricular septal defect (pronounced ven·tric·u·lar sep·tal de·fect) (VSD) is a birth defect of the heart in which there is a hole in the wall (septum) that separates the two lower chambers (ventricles) of the heart.

Detailed explanation-3: -Types of VSD. Muscular VSD is believed to be more likely to close spontaneously than membranous VSD (14) or perimembranous VSD (15, 16).

Detailed explanation-4: -A ventricular septal defect (VSD) is a communication between the interventricular chambers. Muscular ventricular septal defects have exclusively muscular borders and are more likely to be multiple. Their location and multiplicity can sometimes make them a very challenging clinical problem.

Detailed explanation-5: -Type 2: (membranous) This VSD is, by far the most common type, accounting for 80% of all defects. It is located in the membranous septum inferior to the crista supraventricularis. It often involves the muscular septum when it is commonly known as perimembranous.