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A new article, published in the European Heart Journal, provides a comparison between endothelial shear stress (ESS) computations for ArterioSorb™ 3.0 x 14mm scaffolds and Absorb BVS 3.0 x 18mm (Abbott Vascular, US), calculated from in-vivo data.
The article, titled “Non-Newtonian pulsatile shear stress assessment: a method to differentiate bioresorbable scaffold platforms”, by Erhan Tenekecioglu, Prof Patrick Serruys and colleagues, shows that the thinner strut thickness of ArterioSorb™ was measured as strut protrusion by OCT, which showed ArterioSorb™ (89 ± 7 µm), mean protrusion distance was less than in Absorb BVS (150 ± 9 µm).
This resulted in less disruption of the arterial blood flow – higher ESS values than Absorb BVS during all coronary flow periods.
This should, in turn, lead to less risk of scaffold thrombosis in the scaffold caused by slow and turbulent blood flow.