Multicentre randomised prospective study aimed at verifying medium-term patency of venous grafts on the right coronary artery territory, by clinical and/or instrumental follow-up with particular attention to clinically driven re-revascularisation events regarding the site of new lesions (granularly comparing sites already treated with VEST, sites treated with bare vein, sites treated with other conduits, de novo lesions on the native).

Inclusion Criteria:

• combined or isolated interventions
• adequate vein calibre
• adequate graft flowmetry

Exclusion Criteria:

• inability to implant due to calibre disparity or inadequate flowmetry

Anonimized clinical parameters

Form start to end of study

Centers collaborating to active recruitment, to be added after the completion of their each institutional review