Key result
Correcting mechanical factors resolves recurrent subacute stent thrombosis, pointing to mechanics over clopidogrel hyporesponsiveness.
Why the study?
Recurrent subacute stent thrombosis after drug-eluting stent implantation presents uncertainty regarding the responsible cause, whether clopidogrel hyporesponse or mechanical factors.
Case Report (n=1)
No
This case highlights that mechanical factors such as uncovered artery and edge dissection should be strongly considered and corrected in recurrent subacute stent thrombosis, even in the presence of clopidogrel hyporesponse.
Mechanical factors warrant consideration in recurrent subacute stent thrombosis; hypothesis-generating for primacy over clopidogrel hyporesponsiveness.
A 63-year-old male was admitted with subacute anterior ST-elevation myocardial infarction. Cardiac catheterization revealed a subtotal occlusion in the proximal and middle part of left anterior descending coronary artery. Subacute stent thrombosis (SAT) occurred recurrently until the last stent deployment solved the problem of the uncovered artery and distal-stent edge dissection. The patient's SYNTAX score was 19, and percutaneous coronary intervention (PCI) was performed. Unfortunately, SAT occurred recurrently after drug eluting stent implantation. What reason should be responsible for the recurrent SAT, clopidogrel hyporesponse or mechanical factors? All anti-platelet therapy has been tried, but adenosine diphosphate (ADP)-induced platelet aggregation remained hyporesponsive to clopidogrel. The patient has been symptom-free at follow-ups since the fourth PCI solved the problem of the uncovered artery and distal-stent edge dissection.
No takes yet. Share an insight, caveat, or question.
Yang et al. (2015) conducted a case report in Recurrent subacute stent thrombosis (n=1). Percutaneous coronary intervention and anti-platelet therapy was evaluated. Recurrent subacute stent thrombosis was resolved by addressing mechanical factors such as uncovered artery and distal-stent edge dissection, suggesting mechanical issues rather than clopidogrel hyporesponsiveness were the primary cause.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: