Table 4 Comparison of intraoperative TTFM parameters between venous grafts going to the left and to the right territory
From: Influence of coronary territory on flow profiles of saphenous vein grafts
Variable | Mean graft flow (ml/min) | Pulsatility Index | Diastolic filling (%) | Backward flow (%) | By-pass time (min) | Mean arterial pressure at TTFM (mmHg) |
|---|---|---|---|---|---|---|
Saphenous vein grafts | ||||||
Overall (n = 301) | ||||||
Left territory (n = 167) | 48.3 ± 33.8 | 2.6 ± 1.7 | 63.3 ± 12.0 | 1.8 ± 3.2 | 94.5 ± 23.4 | 80.9 ± 8.1 |
Right territory (n = 134) | 48.3 ± 29.1 | 2.5 ± 1.2 | 58.1 ± 10.5 | 1.6 ± 3.0 | 98.8 ± 28.4 | 80.7 ± 6.2 |
p-value | 0.9 | 0.7 | < 0.001 | 0.8 | 0.3 | 0.9 |
On-pump CABG (n = 184) | ||||||
Left territory (n = 99) | 51.7 ± 28.1 | 2.5 ± 1.9 | 63.5 ± 12.0 | 1.2 ± 2.5 | 94.5 ± 23.4 | 80.8 ± 5.8 |
Right territory (n = 85) | 49.0 ± 30.1 | 2.5 ± 1.3 | 57.3 ± 10.5 | 1.6 ± 3.2 | 98.8 ± 28.4 | 80.1 ± 5.4 |
p-value | 0.5 | 0.9 | < 0.001 | 0.4 | 0.3 | 0.3 |
Off-pump CABG (n = 117) | ||||||
Left territory (n = 68) | 43.5 ± 40.4 | 2.7 ± 1.4 | 63.1 ± 12.1 | 2.3 ± 3.0 | – | 81.0 ± 10.6 |
Right territory (n = 49) | 47.0 ± 27.5 | 2.6 ± 1.2 | 59.5 ± 10.4 | 1.6 ± 2.6 | – | 82.0 ± 7.3 |
p-value | 0.6 | 0.5 | 0.071 | 0.2 | – | 0.6 |
p-value* | 0.1 | 0.3 | 0.8 | 0.023 | – | 0.9 |
p-value** | 0.7 | 0.7 | 0.3 | 0.9 | – | 0.095 |