1. Seung-Yul Lee

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    1. Mentioned In 15 Articles

    2. Optical Coherence Tomography for Coronary Bioresorbable Vascular Scaffold Implantation: A Randomized Controlled Trial

      Optical Coherence Tomography for Coronary Bioresorbable Vascular Scaffold Implantation:  A Randomized Controlled Trial
      Background: We investigated whether optical coherence tomography (OCT) guidance would reduce nonoptimal bioresorbable vascular scaffold (BVS) deployment. Methods: This was a randomized controlled trial. Patients who required percutaneous coronary intervention for ischemic heart disease were recruited from 2 centers in Korea. The enrolled patients were randomly assigned to receive either OCT-guided BVS (Absorb; Abbott Vascular) implantation or angiography-guided BVS implantation using an optimized technique. The primary outcome was nonoptimal deployment ...
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    3. Optical Coherence Tomography for Coronary Bioresorbable Vascular Scaffold Implantation

      Optical Coherence Tomography for Coronary Bioresorbable Vascular Scaffold Implantation
      Background: We investigated whether optical coherence tomography (OCT) guidance would reduce nonoptimal bioresorbable vascular scaffold (BVS) deployment. Methods: This was a randomized controlled trial. Patients who required percutaneous coronary intervention for ischemic heart disease were recruited from 2 centers in Korea. The enrolled patients were randomly assigned to receive either OCT-guided BVS (Absorb; Abbott Vascular) implantation or angiography-guided BVS implantation using an optimized technique. The primary outcome was nonoptimal deployment ...
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    4. Impact of late stent malapposition after drug-eluting stent implantation on long-term clinical outcomes

      Impact of late stent malapposition after drug-eluting stent implantation on long-term clinical outcomes
      Background and aims The impact of late drug-eluting stent (DES) malapposition detected by optical coherence tomography (OCT) on long-term clinical outcomes has not been clearly established. We evaluated long-term clinical outcomes of late stent malapposition (LSM) detected by OCT in a qualified study population. Methods A total of 428 patients were selected from previous randomized OCT studies that evaluated the degree of strut coverage of different DESs at a 312-month ...
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    5. Early Follow-Up Optical Coherence Tomographic Findings of Significant Drug-Eluting Stent Malapposition

      Early Follow-Up Optical Coherence Tomographic Findings of Significant Drug-Eluting Stent Malapposition
      Background: Using optical coherence tomography, we evaluated early follow-up findings of significant stent malapposition (SSM) in patients treated with second-generation drug-eluting stent. Methods and Results: From the DETECT-OCT randomized trial (Determination of the Duration of the Dual Antiplatelet Therapy by the Degree of the Coverage of the Struts on Optical Coherence Tomography From the Randomized Comparison Between Everolimus- Versus Biolimus-Eluting Stent), a total of 386 patients (390 lesions) who underwent ...
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    6. Mechanisms of stent thrombosis: insights from optical coherence tomography

      Mechanisms of stent thrombosis: insights from optical coherence tomography
      Although the improvement of coronary stents and medical agents has reduced adverse cardiac events in patients undergoing percutaneous coronary intervention (PCI), stent thrombosis (ST) still remains one of fatal complications of stent therapy. However, the pathophysiology of ST has not been sufficiently established yet, and factors including comorbidities such as diabetes mellitus, stent design, and patients response or adherence to antiplatelet therapy have had the association with ST occurrence (1 ...
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    7. Association between fractional flow reserve and coronary plaque characteristics assessed by optical coherence tomography

      Association between fractional flow reserve and coronary plaque characteristics assessed by optical coherence tomography
      Background The assessment of fractional flow reserve (FFR) in coronary lesions determines the strategy of percutaneous coronary intervention. However, the association between FFR and characteristics of the underlying coronary plaque has not been sufficiently investigated. Methods A total of 110 coronary lesions in 106 patients were evaluated using both FFR and optical coherence tomography (OCT). Coronary plaques were classified into fibrous, fibrocalcific, or fibroatheroma according to OCT evaluation at the ...
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    8. Optical Coherence Tomographic Observation of In-Stent Neoatherosclerosis in Lesions With More Than 50% Neointimal Area Stenosis After Second-Generation Drug-Elnuting Stent Implantation

      Optical Coherence Tomographic Observation of In-Stent Neoatherosclerosis in Lesions With More Than 50% Neointimal Area Stenosis After Second-Generation Drug-Elnuting Stent Implantation
      ...ions With More Than 50% Neointimal Area Stenosis After Second-Generation Drug-Eluting Stent Implantation 1. Seung-Yul Lee, MD*, 2. Seung-Ho Hur, MD*, 3. Sang-Gon Lee, MD, 4. Sang-Wook Kim, MD, 5. Dong-Ho Shin, MD, MPH,...
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    9. Optical Coherence Tomographic Observation of In-Stent Neoatherosclerosis in Lesions With More Than 50% Neointimal Area Stenosis After Second-Generation Drug-Eluting Stent Implantation

      Optical Coherence Tomographic Observation of In-Stent Neoatherosclerosis in Lesions With More Than 50% Neointimal Area Stenosis After Second-Generation Drug-Eluting Stent Implantation
      ...ions With More Than 50% Neointimal Area Stenosis After Second-Generation Drug-Eluting Stent Implantation 1. Seung-Yul Lee, MD*, 2. Seung-Ho Hur, MD*, 3. Sang-Gon Lee, MD, 4. Sang-Wook Kim, MD, 5. Dong-Ho Shin, MD, MPH,...
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    10. Optical coherence tomography-based predictors for creatine kinase-myocardial band elevation after elective percutaneous coronary intervention for in-stent restenosis

      Optical coherence tomography-based predictors for creatine kinase-myocardial band elevation after elective percutaneous coronary intervention for in-stent restenosis
      ...nase-myocardial band elevation after elective percutaneous coronary intervention for in-stent restenosis 1. Seung-Yul Lee MD^1, 2. Myeong-Ki Hong MD^1,2,3,*, 3. Dong-Ho Shin MD, MPH^1,3, 4. Jung-Sun Kim MD^1,3, 5. Byeo...
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    11. Temporal course of neointimal hyperplasia following drug-eluting stent implantation: a serial follow-up optical coherence tomography analysis

      Temporal course of neointimal hyperplasia following drug-eluting stent implantation: a serial follow-up optical coherence tomography analysis
      We sought to evaluate the temporal course of neointimal hyperplasia (NIH) after drug-eluting stent (DES) implantation, using serial optical coherence tomography (OCT). We identified 89 DES (82 patients) that had at least three consecutive cross-sections with a mean NIH thickness 100 m on first follow-up OCT. Qualitative and quantitative changes in NIH were then assessed at a second follow-up OCT. NIH regression and progression were defined as a decrease or ...
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    12. Mechanisms of Postintervention and Nine-Month Luminal Enlargement After Treatment of Drug-Eluting In-Stent Restenosis With a Drug-Eluting Balloon

      Mechanisms of Postintervention and Nine-Month Luminal Enlargement After Treatment of Drug-Eluting In-Stent Restenosis With a Drug-Eluting Balloon
      Using optical coherence tomography (OCT), the mechanisms of postintervention and 9-month luminal enlargement in drug-eluting stent in-stent restenosis (ISR) lesions treated with a drug-eluting balloon (DEB) were evaluated. A total of 42 patients with DEB-treated drug-eluting stent ISR lesions underwent serial OCT examination before intervention, after intervention, and at 9-month follow-up. Preintervention OCT-derived neointima was classified as either a homogeneous or nonhomogeneous pattern. Ten ISR lesions with homogeneous neointima were ...
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    13. Optical coherence tomography-based evaluation of in-stent neoatherosclerosis in lesions with more than 50% neointimal cross-sectional area stenosis

      Optical coherence tomography-based evaluation of in-stent neoatherosclerosis in lesions with more than 50% neointimal cross-sectional area stenosis
      Aims: To use optical coherence tomography (OCT) to evaluate the time course, risk factors, and clinical implication of in-stent neoatherosclerosis. Methods and results: The neointimal characteristics of 152 lesions, 128 drug-eluting stents (DESs) and 24 bare metal stents (BMSs), with 50% percent cross-sectional area (CSA) neointimal stenosis were evaluated. Neoatherosclerosis was defined as neointima with presence of lipid or calcification. Neoatherosclerosis was observed in 54 lesions (35.5%, 35 DESs ...
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    14. Serial Optical Coherence Tomography-Based Observation of Strut Coverage on Drug-Eluting Stent Crossing Side-Branch Vessels

      Serial Optical Coherence Tomography-Based Observation of Strut Coverage on Drug-Eluting Stent Crossing Side-Branch Vessels
      Background. Serial changes in strut coverage of drug-eluting stents (DESs), which are placed across side-branch vessels, remain unclear. Methods. The changes in strut coverage of DESs crossing side-branch vessels (size 2.0 mm) were serially evaluated by optical coherence tomography (OCT) in 30 patients at 9 months and 2 years after the index DES implantation. DESs were paclitaxel-eluting stents (PESs), sirolimus-eluting stents (SESs), and zotarolimus-eluting stents (ZESs), each in 10 ...
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  2. About Seung-Yul Lee

    Seung-Yul Lee is from the Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea