Vol 23, No 4 (2016)
Published online: 2016-07-20

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Wall shear stress in the development of in-stent restenosis revisited. A critical review of clinical data on shear stress after intracoronary stent implantation

Csaba Jenei, Emília Balogh, Gábor Tamás Szabó, Csaba András Dézsi, Zsolt Kőszegi
Pubmed: 27439365
Cardiol J 2016;23(4):365-373.


The average wall shear stress (WSS) is in 1 Pa range in coronary arteries, while the stretching effect of an implanted coronary stent can generate up to 3 × 105 times higher circumferential stress in the vessel wall. It is widely accepted that WSS plays a critical role in the development of restenosis after coronary stent implantation, but relevant clinical endpoint studies are lack­ing. Fluid dynamics modeling suggests an association between WSS and intimal hyperplasia, however, such an association is not established when the compensating healing process becomes an overshoot phenomenon. This review summarizes available clinical results and concepts of potential clinical importance.

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