Defining small vessels and bioresorbable vascular scaffold outcomes.

Bioresorbable vascular scaffolds (BVS) are non-inferior to second generation drug eluting stents (DES) but thrombosis rates for BVS in small vesseles is a concern. The BVS-SAVE registry of small vesseles (<2.75 mm) supports safety and efficacy of BVS in this high risk lesion subset. Definitive recommendation for BVS in small vessels require further trials DES with evaluation of the lower threshold for minimal reference vesseles diameter.