Off-pump no-touch technique: 3-year results compared with the SYNTAX trial

Abstract

Objectives: A 3-year follow-up of a retrospective, single-centre clinical study of OPCAB (off-pump coronary artery bypass) no-touch technique with arterial composite grafts and an indirect comparison with clinical outcomes of the 3-year follow-up of the SYNTAX trial.

Methods: A total of 400 consecutive patients ('all-comers') who underwent OPCAB no-touch coronary surgery. Primary endpoint was 3-year MACCE (major adverse cardiovascular and cerebrovascular events). These results were compared with the randomized arms of the SYNTAX trial.

Results: The observed 3-year survival was 82.2%. The cumulative 3-year freedom from MACCE was 89.7%. The percentage of MACCE was significantly lower (P < 0.001) in the OPCAB no-touch group (10.3%) compared with both arms of the SYNTAX trial (20.2 and 28.0%, respectively). Repeat revascularization in the OPCAB no-touch group (4.3%) was significantly lower (P < 0.001) compared with both arms of the SYNTAX trial (10.7 and 19.7%, respectively). The percentage of stroke was significantly lower (P = 0.032) in the OPCAB no-touch group compared with the CABG arm in the SYNTAX trial (1.3 vs 3.4%). There was no significant difference of stroke rate between the OPCAB no-touch group and the PCI arm of the SYNTAX trial (1.3 vs 2%, P = 0.347).

Conclusions: The results at the 3-year follow-up showed the safety and efficacy of OPCAB no-touch technique. The OPCAB no-touch technique may improve patients' outcome by minimizing the morbidity and the neurological complications. Prospective controlled trials are needed to confirm these results.

Keywords: Comparative study; Coronary artery anastomosis; Coronary artery bypass; Internal mammary; Off-pump; Radial artery.