Clinical Study
4-Year Outcome Analysis of Endoscopic Vein Harvesting for Coronary Artery Bypass Grafting
Table 3
Intraoperative data for 1,544 propensity-matched cases.
| | Variable | EVH group | OVH group | P value | | (%) | (%) |
| |
GSV only | 96 (12.4) | 97 (12.6) | 0.91 | | LIMA | 492 (63.7) | 556 (72.0) | 0.06 | | RIMA | 11 (1.4) | 9 (1.2) | 0.89 | | Bilateral IMAs | 106 (13.7) | 51 (6.6) | <0.001 | | Radial artery | 67 (8.7) | 59 (7.6) | 0.71 | | OPCAB | 536 (69.4) | 223 (28.9) | <0.0001 | | Aortic cros-clamp time | 69.4 ± 27.5 | 70.3 ± 28.2 | 0.79 | | CPB time | 122.7 ± 55.2 | 121.3 ± 53.1 | 0.63 | | Conversion to CPB | 9 (1.2) | — | — | | Conversion to OVH | 6 (0.8) | — | — | | Grafts/patient | 2.7 ± 0.4 | 2.7 ± 0.8 | 0.56 | | Bioprosthetic valve | 103 (13.3) | 111 (14.4) | 0.76 | | Mechanical valve | 35 (4.5) | 43 (5.6) | 0.81 | | MGF (mL/min, mean ± SD) | 32.8 ± 4.5 | 31.6 ± 5.1 | 0.67 | | Pulsatility index | 2.1 ± 0.5 | 2.1 ± 0.1 | 0.81 |
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CPB: cardiopulmonary bypass; EVH: endoscopic vein harvest; LIMA: left internal mammary artery; MGF: mean graft flow; OPCAB: off-pump coronary artery bypass; OVH: open vein harvest; RIMA: right internal mammary artery; and SD: standard deviation.
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