Korean Circ J.  2008 Dec;38(12):674-676. 10.4070/kcj.2008.38.12.674.

A Newly Developed Stent Thrombus Related to Optical Coherence Tomography

• Seo YS
• Kim JS
• Lee JM
• Son JY
• Kim KJ
• Kim W
• Kim JS
• Ko YG
• Choi D
• Jang Y

• KMID: 2225702
• DOI: http://doi.org/10.4070/kcj.2008.38.12.674

Abstract

Optical coherence tomography (OCT) is a useful coronary imaging tool for atherosclerotic plaque characterization and stent evaluation. However, proximal balloon inflation is required in order to reduce signal changes caused by red blood cells and to acquire a clear image. One rare acute complication related to proximal balloon occlusion is micro-thrombus formation. We report a case of multiple, acute micro-thrombi forming after an OCT procedure, despite the use of appropriate prevention for intracoronary thrombus formation.

Keyword

Optical coherence tomography; Thrombosis

MeSH Terms

Balloon Occlusion
Erythrocytes
Inflation, Economic
Plaque, Atherosclerotic
Stents
Thrombosis
Tomography, Optical Coherence

Figure

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  Fig. 1 Coronary angiography (CAG) before 9 months showed the culprit lesion (dark arrow) in the middle segment of the left anterior descending (LAD) artery (A), and CAG after zotarolimus-eluting stent implantation (B) showed that the stenosis of the culprit lesion (dark arrow) had resolved.

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  Fig. 2 Follow-up coronary angiography showed a patent stent in the middle segment of the left anterior descending (LAD) artery.

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  Fig. 3 Intravascular ultrasound (IVUS) (A) and optical coherence tomography (OCT) (B) showed the neointima covering the stent struts and no thrombus formation.

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  Fig. 4 Optical coherence tomography (OCT) revealed acute thrombus formation (white arrow) during the pull-back portion of the procedure (A). Follow-up coronary angiography after OCT showed total occlusion in the far distal segment of the left anterior descending (LAD) (dark arrow) (B) due to thromboembolism.

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