Anatomical classification of Ventricular septal defect

TypeI-Defect is in the MEMBRANOUS SEPTUM

Paramembranous / Perimembranous defect or Infracristal, Subaortic, conoventricular)

TypeII- Defect is seen in the MUSCULAR SEPTUM

Inlet,trabecular, central, apical, marginal or swiss-cheese type

TypeIII- Defect is seen in the OUTLET SEPTUM

Supracristal,subpulmonary,infundibular or conoseptal

Septal deficiency –AVseptal defect (AVcanal)

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