Erschienen in:
11.12.2015 | Case Report
Subclinical very late thrombus formation inside and outside the everolimus-eluting stent implanted 3 years prior in a patient with provoked coronary spasms
verfasst von:
Shigenori Ito, Hiroyuki Ohmori
Erschienen in:
Cardiovascular Intervention and Therapeutics
|
Ausgabe 1/2017
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Abstract
A 63-year-old man with non-ST-elevation acute myocardial infarction had undergone PROMUS Element stent implantation for stenosis with thrombus in the left main trunk and the proximal left anterior descending artery. A 6-month follow-up angiography revealed no restenosis or stent thrombosis, but severe provoked spasms in three vessels, for which medications were administered. Three years later, the patient experienced new-onset rest angina one morning. Optical coherence tomography revealed subclinical very late stent thromboses inside and outside the stent. The patients experienced a severe spasm. Platelet function was adequately reduced, and the cytochrome P450 2C19 genotype indicated an extensive metabolizer phenotype. The spasm may have caused the thromboses.