Inlet Ventricular Septal Defect

The inlet ventricular septal defect is located in the endocardial cushion position and is also known as a perimembranous inlet or Type III ventricular septal defect.

Figure 4-12. The septal and anterior tricuspid valve leaflets are retracted to expose the VSD. The defect is located primarily beneath the septal leaflet. This position places it caudad to the location of a typical Type II or perimembranous VSD. Exposure through the right atrium is enhanced due to the more caudad location of the VSD. A secundum atrial septal defect is also present.

Perimembranous Vsd

anterior leaflet of tricuspid valve atrial septal defect septal leaflet of tricuspid valve

Figure 4-12. The septal and anterior tricuspid valve leaflets are retracted to expose the VSD. The defect is located primarily beneath the septal leaflet. This position places it caudad to the location of a typical Type II or perimembranous VSD. Exposure through the right atrium is enhanced due to the more caudad location of the VSD. A secundum atrial septal defect is also present.

anterior leaflet of tricuspid valve atrial septal defect septal leaflet of tricuspid valve caud

Septal Leaflet

coronary sinus atrial septal defect

Figure 4-13. Interrupted mattress sutures are placed along the rim of the VSD. At the base of the tricuspid valve septal leaflet, these sutures may be passed through the leaflet near the annulus. The His' bundle is located near the posterior inferior rim of the VSD in the region anterior to the coronary sinus. Sutures here must be placed superficially along the right ventricular surface of the rim of the VSD to avoid His' bundle injury.

stitches at base of septal leaflet of tricuspid valve stitches near

His' bundle

Figure 4-13. Interrupted mattress sutures are placed along the rim of the VSD. At the base of the tricuspid valve septal leaflet, these sutures may be passed through the leaflet near the annulus. The His' bundle is located near the posterior inferior rim of the VSD in the region anterior to the coronary sinus. Sutures here must be placed superficially along the right ventricular surface of the rim of the VSD to avoid His' bundle injury.

caud coronary sinus atrial septal defect

Dacron Patch For Atrial Septal Defect

Dacron patch tricuspid valve septal leaflet atrial septal defect

Figure 4-14. Stitches are placed in a knitted Dacron® patch and tied. Part of the patch is hidden from view beneath the tricuspid valve septal leaflet. The ASD will be closed with a separate Dacron® patch.

Dacron patch tricuspid valve septal leaflet

Figure 4-14. Stitches are placed in a knitted Dacron® patch and tied. Part of the patch is hidden from view beneath the tricuspid valve septal leaflet. The ASD will be closed with a separate Dacron® patch.

atrial septal defect

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Responses

  • marco sj
    How to do knitted dacron patch for vsd?
    7 years ago

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