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Serial changes of minimal stent malapposition not detected by intravascular ultrasound: follow-up optical coherence tomography study.

Authors
 Won Ho Kim  ;  Byoung Kwon Lee  ;  Sahng Lee  ;  Jae-Min Shim  ;  Jung-Sun Kim  ;  Byoung-Keuk Kim  ;  Young-Guk Ko  ;  Donghoon Choi  ;  Yangsoo Jang  ;  Myeong-Ki Hong 
Citation
 CLINICAL RESEARCH IN CARDIOLOGY, Vol.99(10) : 639-644, 2010 
Journal Title
 CLINICAL RESEARCH IN CARDIOLOGY 
ISSN
 1861-0684 
Issue Date
2010
MeSH
Aged ; Coronary Artery Disease/diagnostic imaging ; Coronary Artery Disease/therapy* ; Drug-Eluting Stents/adverse effects* ; Female ; Follow-Up Studies ; Humans ; Male ; Middle Aged ; Prosthesis Failure ; Tomography, Optical Coherence* ; Ultrasonography, Interventional*
Keywords
Optical coherence tomography ; Stent
Abstract
Morphologic changes of small-sized post-stent malapposition have not been sufficiently evaluated. We investigated serial changes of minimal post-stent malapposition with a follow-up optical coherence tomography (OCT) study. Post-stent OCT and intravascular ultrasound (IVUS) and follow-up OCT were performed in 26 patients with minimal post-stent malapposition. Serial changes of number and percent of malapposition struts, and mean extra-stent malapposition area were measured in OCT analysis. Zotarolimus-eluting stent (ZES), sirolimus-eluting stent (SES), and paclitaxel-eluting stent (PES) were deployed in 17, 7 and 2 patients, respectively. Mean durations of the follow-up OCT study were 5.7 ± 3.0 months. The minimal post-stent malapposition cannot be detected by the IVUS, but be visualized with an OCT examination. According to different drug-eluting stents, malapposed stent struts were defined as the struts with detachment from the vessel wall ≥160 μm for SES, ≥130 μm for PES, and ≥110 μm for ZES. The percent of malapposition struts significantly decreased from 12.2 ± 11.0% post-stent to 1.0 ± 2.2% follow-up (P < 0.001). There was a significant decrease in the mean extra-stent malapposition area from 0.35 ± 0.16 mm(2) post-stent to 0.04 ± 0.11 mm(2) follow-up (P < 0.001). Complete disappearance of stent malapposition was also observed in 22 (85%) patients. In conclusion, minimal stent malapposition which is not detectable by IVUS may disappear or decrease in follow-up OCT evaluation.
Full Text
http://link.springer.com/article/10.1007%2Fs00392-010-0163-5
DOI
10.1007/s00392-010-0163-5
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Ko, Young Guk(고영국) ORCID logo https://orcid.org/0000-0001-7748-5788
Kim, Byeong Keuk(김병극) ORCID logo https://orcid.org/0000-0003-2493-066X
Kim, Jung Sun(김중선) ORCID logo https://orcid.org/0000-0003-2263-3274
Shim, Jae Min(심재민)
Lee, Byoung Kwon(이병권) ORCID logo https://orcid.org/0000-0001-9259-2776
Jang, Yang Soo(장양수) ORCID logo https://orcid.org/0000-0002-2169-3112
Choi, Dong Hoon(최동훈) ORCID logo https://orcid.org/0000-0002-2009-9760
Hong, Myeong Ki(홍명기) ORCID logo https://orcid.org/0000-0002-2090-2031
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/101654
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