Clinical Trials

Inclusion Criteria:

1. Signed informed consent, inclusive of release of medical information, and Health Insurance Portability and Accountability Act (HIPAA) documentation.
2. Age 21 years or older.
3. Planned and scheduled on-pump CABG.
4. Two or more vein grafts: 1 for the right coronary artery, 1 or more for the left coronary arteries, with native vessels having at least 75% stenosis.
5. IMA graft indicated for the LAD and additional arterial graft considered based on practice guidelines. A patient who is candidate for one, two, or more arterial grafts would only be eligible if in addition to the arterial grafts at least two vein grafts are used as specified above.
6. Appropriately sized and accessible target coronary arteries, with a minimum diameter of 1.5 mm and adequate vascular bed (without significant distal stenosis), as assessed by pre-operative cardiac angiography.

Exclusion Criteria:

1. Concomitant non-CABG cardiac surgical procedure.
2. Prior cardiac surgery.
3. Emergency CABG surgery (cardiogenic shock, inotropic pressure support, IABP).
4. Contraindication for on-pump CABG with cardioplegic arrest (e.g., severely calcified aorta).
5. Calcification at the intended anastomotic sites, as assessed upon opening of the chest and before randomization.
6. Severe vein varicosity as assessed after vein harvesting and before randomization.
7. History of clinical stroke within 3 months prior to randomization.
8. Severe renal dysfunction (Cr>2.0 mg/dL).
9. Documented or suspected untreated diffuse peripheral vascular disease such as: carotid stenosis or claudication of the extremities.
10. Concomitant life-threatening disease likely to limit life expectancy to less than two years.
11. Inability to tolerate or comply with required guideline-based post-operative drug regimen (antiplatelet plus statin) and/or inability to take aspirin.
12. Inability to comply with required follow-ups including angiographic imaging methods (e.g. contrast allergy).
13. Concurrent participation in an interventional (drug or device) trial.