Optical coherence tomography findings of very late stent thrombosis after drug-eluting stent implantation

  • Young-Guk Ko
  • Dong-Min Kim
  • Jin Man Cho
  • So Yeon Choi
  • Jung Han Yoon
  • Jung-Sun Kim
  • Byeong-Keuk Kim
  • Donghoon Choi
  • Yangsoo Jang
  • Myeong-Ki Hong
Original Paper


Previous optical coherence tomography (OCT) studies in patients with drug-eluting stents (DESs)-related very late stent thrombosis (VLST) were scarce. Therefore, we investigated OCT findings of VLST after implantation of DESs. Using OCT, we analyzed the status of stent struts and neointimal characteristics in 18 patients who developed VLST after DES implantation. These results were compared to those in 57 patients with neointimal hyperplasia causing >40% diameter stenosis. Lipid-laden neointima was defined as a region with marked signal attenuation and a diffuse border. Four (22.2%) of 18 patients with VLST had ruptured and lipid-laden neointima inside DESs without uncovered or malapposed stent struts. In the remaining 14 patients who developed VLST without neointimal rupture, uncovered and malapposed struts were observed in nine and seven patients, respectively, and lipid-laden neointima in four patients. Lipid-laden neointima was more frequently observed in four patients with neointimal rupture than in 14 patients without neointimal rupture (100% vs. 28.6%, respectively, P = 0.023). Of 57 patients with neointimal hyperplasia, eight (14.0%) had lipid-laden neointima. Time to OCT study after DES implantation was significantly longer in the eight patients with lipid-laden neointima than in 49 patients without lipid-laden neointima (45.5 ± 17.7 months vs. 11.7 ± 7.2 months, respectively, P < 0.001). Lipid-laden neointima was detected in some patients with neointimal hyperplasia > 1 year after DES implantation. In addition to uncovered or malapposed struts, rupture of lipid-laden neointima inside DESs was identified in some patients with DES-related VLST.


Optical coherence tomography Stent Thrombosis 



This study was partly supported by grants from the Korea Healthcare Technology R&D Project, Ministry for Health, Welfare & Family Affairs, Republic of Korea (No. A085012 and A102064), the Korea Health 21 R&D Project, Ministry of Health & Welfare, Republic of Korea (No. A085136), and the Cardiovascular Research Center, Seoul, Korea.

Conflict of interest

The authors do not have any potential conflicts of interest associated with this paper.


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Copyright information

© Springer Science+Business Media, B.V. 2011

Authors and Affiliations

  • Young-Guk Ko
    • 1
  • Dong-Min Kim
    • 1
  • Jin Man Cho
    • 2
  • So Yeon Choi
    • 3
  • Jung Han Yoon
    • 4
  • Jung-Sun Kim
    • 1
  • Byeong-Keuk Kim
    • 1
  • Donghoon Choi
    • 1
  • Yangsoo Jang
    • 1
    • 5
  • Myeong-Ki Hong
    • 1
    • 5
  1. 1.Division of CardiologySeverance Cardiovascular Center, Yonsei University College of MedicineSeoulKorea
  2. 2.East-West Neo Medical Center, Kyung Hee University College of MedicineSeoulKorea
  3. 3.Ajou University College of MedicineSuwonKorea
  4. 4.Wonju Christian Hospital, Yonsei University Wonju College of MedicineWonjuKorea
  5. 5.Severance Biomedical Science Institute, Yonsei University College of MedicineSeoulKorea

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