Classification of ventricular septal defects
Several classifications of ventricular septal defects have been proposed by others (48)where there are various types of ventricular septal defects but the classification of kirklin and associates is more admirable in its simplicity and its applicability to surgical requirements.
Types of defects
Defect related to ventricular out flow tracts interior to crista supraventricular is defect related to ventricular inflow tracts beneath is a septal leaflet of tricuspid valve near the apex of muscular septum.(47)
Defects are situated between the crista supraventricular and the pulmonary valve ,(51)where the opening lies above the crista supraventricular and appears in the outflow tract of the right ventricular.(48)
Defects occur just caudal to the crista supraventricular are considered the most common type occurring in more than 80 percent of patients with ventricular septal defects.
Defects are located more posteriorly beneath the septal leaflet of the tricuspid valve (51) These defects are often technically difficult to repair injury to the A.V node, and bundle is a greater hazard in the canal. (48)
Defect is found in the muscular septum near its candal and anterior portion .(51) Muscular defects can be located anywhere in the muscular septum where they are often large or multpile.