Very late stent thrombosis – Cardiology MCQ

Very late stent thrombosis is stent thrombosis after:
a) 1 month
b) 3 months
c) 6 months
d) 12 months
Correct answer: d) 12 months
Important causes of very late stent thrombosis are malapposition, neoatherosclerosis, stent strut uncoverage and underexpansion. Very late stent thrombosis is a feature of early generation drug eluting stents, less common with newer drug eluting stents. It is a potential risk for with holding anti platelet agents for surgical procedure.
Reference
Taniwaki M et al. Mechanisms of Very Late Drug-Eluting Stent Thrombosis Assessed by Optical Coherence Tomography. Circulation. 2016 Feb 16;133(7):650-60.