Table 2.
Flow insufficiency according to characteristics of target vessel, bypass graft and stenosis location
| Target vessel | Bypass graft | (n) | Flow insufficiency | MI (+) | MI (−) | PCI (+) | PCI (−) | Distal lesion | Proximal lesion |
|---|---|---|---|---|---|---|---|---|---|
| LAD | in-situ ITA | 334 | 10.5%(35/334) * | 7.0%(3/43) | 11.0%(32/291) | 22.2%(12/54) | 8.2%(23/280) | 15.0%(20/133) | 7.5%(15/201) |
| p = 0.42 | p = 0.002 | p = 0.03 | |||||||
| LCX | 194 | 18.0%(35/194) ** | 28.6%(4/14) | 17.2%(31/180) | 15.0%(3/20) | 18.4%(32/174) | 27.7%(26/94) | 9.0%(9/100) | |
| p = 0.29 | p = 0.71 | p = 0.0007 | |||||||
| in-situ ITA | 129 | 24.0%(31/129) | 36.4%(4/11) | 22.9%(27/118) | 18.8%(3/16) | 24.8%(28/113) | 37.1%(23/62) | 11.9%(8/67) | |
| p = 0.04 | p = 0.60 | p = 0.0008 | |||||||
| aorto-coronary SVG | 65 | 6.2%(4/65) | 0%(0/3) | 6.5%(4/62) | 0%(0/4) | 6.6%(4/61) | 9.4%(3/32) | 3.0%(1/33) | |
| p = 0.65 | p = 0.60 | p = 0.29 | |||||||
| RCA | 208 | 25.5%(53/208) *** | 45.1%(23/51) | 19.1%(30/157) | 26.3%(5/19) | 25.4%(48/189) | 48.7%(19/39) | 20.1%(34/169) | |
| p = 0.0002 | p = 0.93 | p = 0.0002 | |||||||
| in-situ GEA | 142 | 26.8%(38/142) | 45.9%(17/37) | 20.0%(21/105) | 30.0%(3/10) | 26.5%(35/132) | 50.0%(11/22) | 22.5%(27/120) | |
| p = 0.002 | p = 0.81 | p = 0.007 | |||||||
| aorto-coronary SVG | 66 | 22.7%(15/66) | 42.9%(6/14) | 17.3%(9/52) | 22.2%(2/9) | 22.8%(13/57) | 47.1%(8/17) | 14.3%(7/49) | |
| p = 0.04 | p = 0.97 | p = 0.006 | |||||||
| Overall | 736 | 16.7%(123/736) | 28.0%(30/107) | 14.8%(93/629) | 21.5%(20/93) | 16.0%(103/643) | 23.0%(65/283) | 12.8%(58/453) | |
| p = 0.0007 | p = 0.19 | p = 0.0003 | |||||||
GEA; gastroepiploic artery ITA; internal thoracic artery LAD; left anterior descending artery LCX; left circumflex artery
MI; myocardial infarction PCI; percutaneous coronary intervention RCA; right coronary artery SVG; saphenous vein graft; * vs. **; p = 0.01; * vs. ***; p < .0001