Surgery: AVSD Repair Patch Types

(From Mavroudis & Backer's book)
3 different patch techniques used in AVSD repair:A: Single Patch Technique - commonly used. B: Two Patch Technique
Trusler GA. JTCVS 71:296,1976
C: Modified Single Patch Technique (Australian or Nunn technique)
Nunn GR. Semin Thorac Cardiovasc Surg Pediatr Card Surg Annu. 2007:28-31.

VSD sutures go on the rightside of the crest of septum to avoid LBB and AV node - as shown below:

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