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Five-year patency for the no-touch saphenous vein and the left internal thoracic artery in on- and off-pump coronary artery bypass grafting
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  • Mikael Arbeus,
  • Domingos Souza,
  • Håkan Geijer,
  • Mats Lidén,
  • Bruno Pinheiro,
  • Lennart Bodin,
  • Ninos Samano
Mikael Arbeus
Örebro universitet
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Domingos Souza
Örebro universitet
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Håkan Geijer
Örebro universitet
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Mats Lidén
Örebro universitet
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Bruno Pinheiro
Hospital do Coracao Anis Rassi Ltda
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Lennart Bodin
Karolinska Institute
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Ninos Samano
Uppsala University
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Abstract

Background Randomised trials show high long-term patency for no-touch saphenous vein grafts in coronary artery bypass grafting. The patency rate in off-pump coronary bypass surgery for these grafts has not been investigated. Our centre participated in the CORONARY randomized trial, NCT00463294. This is a sub-study aimed to assess the patency of no-touch saphenous veins in on- versus off-pump coronary bypass surgery at five-year follow-up. Methods Fifty-six patients were included. Forty of 49 patients, alive at five years, participated in this follow-up. There were 21 and 19 patients in the on- and off-pump groups respectively. No-touch saphenous veins were used to bypass all targets and in some cases the left anterior descending artery. Graft patency according to distal anastomosis was evaluated with computed tomography angiography. Results The five-year patency rate was 123/139 (88.5%). The patency for the no-touch vein grafts was 57/64 (89.1%) in the on-pump vs 37/45 (82.2%) in the off-pump group. All left internal thoracic arteries except for one, 29/30 (96.6%), were patent. All vein grafts used to bypass the left anterior descending and the diagonal arteries were patent 32/32. The lowest patency rate for the saphenous veins was to the right coronary territory, particularly in off-pump surgery (80.0% vs 62.5% for the on- respective off-pump groups). Conclusions Comparable five-year patency for the no-touch saphenous veins and the left internal thoracic arteries to the left anterior descending territory in both on- and off-pump coronary artery bypass grafting. Graft patency in off-pump CABG is lower to the right coronary artery.

Peer review status:ACCEPTED

02 Jun 2021Submitted to Journal of Cardiac Surgery
03 Jun 2021Assigned to Editor
03 Jun 2021Submission Checks Completed
03 Jun 2021Reviewer(s) Assigned
10 Jun 2021Review(s) Completed, Editorial Evaluation Pending
10 Jun 2021Editorial Decision: Accept