(From Mavroudis & Backer's book)
3 different patch techniques used in AVSD repair:![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiXJO2hKZtuRp1egoJjdB4LDufHeMuDt4VZJE5PjVGaYkwtwGNOfcbeBgvWTTPhaH2rNDgNHImb6O8TTSLfsFtnR4OShM0dWDOVBu1oOlrwQCotGRvAurv79Goucxo9dmVgp0H5OQ/s400/AVcanalRep3PatchTypesMavroudis.jpg)
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:
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjts3_E6dzhkgR8OBgC5PVZz1I2vJbNXQDRF08iw3_M9dTd_fGYFLvVT4-aq18qs5zmZf8qwXN0ur2ymQXPiocbS-7MMgw_0jhGE8lVugFDbHKNz56IVG9Iod11CvYQhMRWoKfE6Q/s400/AVCanalVSDPartchSutures.jpg)
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