Table 2.
Graft flowmetry and its derivatives stratified according to graft type and coronary territory.
| Flowmetry | Graft Type |
|---|---|
| Parameter | SVG-Right coronary artery (n = 6) |
| Flow during cardioplegia | 120.0 ± 31.6 |
| CR cardioplegia | 0.84 ± 0.19 |
| Mean TTF flow | 47.5 ± 24.0 |
| CR TTF | 1.41 ± 0.53 |
| PI | 1.4 ± 0.6 |
| Parameter | SVG-Posterior descending artery (n = 8) |
| Flow during cardioplegia | 98.8 ± 14.6 |
| CR cardioplegia | 1.00 ± 0.20 |
| Mean TTF flow | 35.5 ± 19.7 |
| CR TTF | 2.83 ± 4.26 |
| PI | 1.9 ± 0.9 |
| Parameter | SVG-Obtuse Marginal (n = 38) |
| Flow during cardioplegia | 104.5 ± 32.4 |
| CR cardioplegia | 1.03 ± 0.30 |
| Mean TTF flow | 39.2 ± 21.4 |
| CR TTF | 1.94 ± 1.43 |
| PI | 1.5 ± 0.5 |
| Parameter | SVG-Ramus intermedius (n = 17) |
| Flow during cardioplegia | 118.2 ± 32.6 |
| CR cardioplegia | 0.89 ± 0.23 |
| Mean TTF flow | 32.7 ± 19.2 |
| CR TTF | 2.05 ± 1.38 |
| PI | 1.6 ± 0.6 |
| Parameter | SVG-Diagonal (n = 17) |
| Flow during cardioplegia | 110.0 ± 26.7 |
| CR cardioplegia | 0.92 ± 0.18 |
| Mean TTF flow | 29.4 ± 17.8 |
| CR TTF | 2.96 ± 2.53 |
| PI | 1.8 ± 0.5 |
| Parameter | LIMA-Left anterior descending (20) |
| Flow during cardioplegia | 68.9 ± 33.0 |
| CR cardioplegia | 1.33 ± 0.72 |
| Mean TTF flow | 49.1 ± 33.4 |
| CR TTF | 1.49 ± 0.86 |
| PI | 1.6 ± 0.7 |
| Parameter | SVG- Left anterior descending (n = 7) |
| Flow during cardioplegia | 110.0 ± 29.4 |
| CR cardioplegia | 0.98 ± 0.33 |
| Mean TTF flow | 39.5 ± 25.6 |
| CR TTF | 1.74 ± 0.88 |
| PI | 1.5 ± 0.4 |
SVG: saphenous vein graft; LIMA: Left internal thoracic artery; CR: coronary resistances, TTF: transit time flowmetry, PI: pulsatility index.