Clinical impact of angiographically insignificant suboptimal poststent findings detected by optical coherence tomography after drug-eluting stent implantationopen access
- Authors
- Kook, Hyungdon; Cho, Jae Young; Yu, Cheol Woong
- Issue Date
- Oct-2020
- Publisher
- PUBLIC LIBRARY SCIENCE
- Citation
- PLOS ONE, v.15, no.10, pp.1 - 16
- Indexed
- SCIE
SCOPUS
- Journal Title
- PLOS ONE
- Volume
- 15
- Number
- 10
- Start Page
- 1
- End Page
- 16
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/189307
- DOI
- 10.1371/journal.pone.0240860
- ISSN
- 1932-6203
- Abstract
- Background,Although optical coherence tomography (OCT)-detected suboptimal findings (SF-OCT) such as malapposition, edge dissection, tissue protrusion, thrombus and small minimal stent area (MSA) are frequently observed after the implantation of drug-eluting stents (DES), their clinical implications are controversial.,Hypothesis,Clinical outcomes may differ between patients with SF-OCTs and without SF-OCTs after DES implantation.,Methods,A total of 576 patients undergoing OCT analysis after DES implantation were divided into SF-OCT group (n = 379, 379 lesions) and No SF-OCT group (n = 197, 197 lesions). The study population had no significant abnormal finding in final angiography. Quantification was performed for each SF-OCT. The incidences of major adverse cardiovascular events (MACE: all-cause death, non-fatal myocardial infarction, target vessel revascularization, and stent thrombosis) were compared between the two groups. A median follow-up duration was 21.5 months.,Results,Among 379 patients with SF-OCT, 32.4% had multiple SF-OCTs. Malapposition (32.1%, IQR of maximal depth 315-580 mu m) was the most frequent, followed by small MSA (31.6%), edge dissection (12.5%, IQR of maximal flap of opening 0.27-0.52 mm), thrombus (7.6%, IQR of diameter 1.31-1.97mm) and tissue protrusion (6.8%, IQR of diameter 1.05-1.67 mm). The SF-OCT group showed smaller stent diameter and longer stent length, and lower in-stent lumen expansion rate. The incidence of MACE did not differ between the two groups (3.0% for No SF-OCT vs. 5.0% for SF-OCT; HR 1.601; 95% CI 0.639 to 4.011; P = 0.310).,Conclusions,The presence of angiographically insignificant SF-OCTs were not associated with clinical outcomes in this study.,
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