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Sizing algorithm for the calibrated annuloplasty ring (Extra_Aortic, Coroneo Inc., QC, Canada) and remodeling graft (Valsalva graft, Vascutek Ltd., Glasgow, UK) based on Hegar dilator measurement of aortic annulus size
| Aortic annulus diameter (Hegar dilator, mm) | Valsalva graft (mm) | Extra aortic ring (mm) |
|---|---|---|
| 25–27 | 26 | 25 |
| 28–30 | 28 | 27 |
| 31–35 | 30 | 29 |
| ≥ 36 | 32 | 31 |
