1. Articles from Lulu Li

    1-10 of 10

    1. Culprit lesion morphology in young patients with st-segment elevated myocardial infarction: A clinical, angiographic and optical coherence tomography study

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      Culprit lesion morphology in young patients with st-segment elevated myocardial infarction: A clinical, angiographic and optical coherence tomography study

      Background and aims About 20% of patients with ST-segment elevated myocardial infarction (STEMI) are young adults. Morphological characteristics of culprit lesion in young STEMI patients have not been systematically evaluated in vivo . The present study aimed to investigate culprit lesion characteristics in young patients versus older patients using optical coherence tomography (OCT). Methods 1442 STEMI patients who underwent OCT examination of culprit lesion were included and divided into young group (age ≤50 years, n = 400) and older group (age >50 years, n = 1042). Clinical characteristics, angiography and OCT findings were compared between the two groups. Results Culprit lesions in STEMI ...

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      Mentions: Harbin Medical University Jingbo Hou Bo Yu

    2. Pre-infarction Angina and Culprit Lesion Morphologies in Patients with a First ST-segment Elevation Acute Myocardial Infarction: Insights from In Vivo Optical Coherence Tomography

      Explore eurointervention.org Cardiology
      Pre-infarction Angina and Culprit Lesion Morphologies in Patients with a First ST-segment Elevation Acute Myocardial Infarction: Insights from In Vivo Optical Coherence Tomography

      Aims: This study aimed to evaluate the relationship between pre-infarction angina (PIA) and in vivo culprit lesion characteristics as assessed by intravascular optical coherence tomography (OCT) in patients with a first ST-segment elevation myocardial infarction (STEMI). Methods and results: A total of 305 consecutive patients with a first STEMI who underwent OCT imaging of culprit lesions during primary percutaneous coronary intervention (PCI) were prospectively enrolled. OCT findings of the culprit plaque were compared between patients with (n=206) and without PIA (n=99). Patients with PIA showed lower rates of thin-cap fibroatheroma (TCFA) (62.6% vs. 80.8%, P=0 ...

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      Mentions: Shaosong Zhang Giulio Guagliumi Harbin Medical University

    3. Impact of vessel curvature on neointimal healing after stent implantation as assessed by optical coherence tomography

      Explore LWW Online Cardiology
      Impact of vessel curvature on neointimal healing after stent implantation as assessed by optical coherence tomography

      Purpose: Previous studies have indicated that stent implantation could alter the vessel geometry, which may impact the neointimal healing process. Curvature is an important parameter for evaluating vessel geometry. The purpose of our study was to investigate the relationship between vessel curvature and neointimal healing after stent implantation. Methods: Fifty-nine patients with acute coronary syndrome (ACS) who underwent stent implantation were enrolled in the study. According to the post-percutaneous coronary intervention vessel curvature measured by quantitative coronary angiography, patients were divided into high (n = 30) and low (n = 29) curvature groups. Neointimal thickness and area together with the neointimal type ...

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      Mentions: Harbin Medical University Yan Wang Bo Yu

    4. In vivo predictors of plaque erosion in patients with ST-segment elevation myocardial infarction: a clinical, angiographical, and intravascular optical coherence tomography study

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      In vivo predictors of plaque erosion in patients with ST-segment elevation myocardial infarction: a clinical, angiographical, and intravascular optical coherence tomography study

      Aims Plaque erosion is a significant substrate of acute coronary thrombosis. This study sought to determine in vivo predictors of plaque erosion in patients with ST-segment elevation myocardial infarction (STEMI). Methods and results A prospective series of 822 STEMI patients underwent pre-intervention optical coherence tomography. Using established diagnostic criteria, 209 had plaque erosion (25.4%) and 564 had plaque rupture (68.6%). Plaque erosion was more frequent in women <50 years when compared with those ≥50 years of age ( P  = 0.009). There was a similar, but less striking, trend in men ( P  = 0.011). Patients with plaque erosion were ...

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      Mentions: Shaosong Zhang Cardiovascular Research Foundation Gary S. Mintz

    5. Does spotty calcification attenuate the response of nonculprit plaque to statin therapy?: A serial optical coherence tomography study

      Explore Wiley Online Library Cardiology
      Does spotty calcification attenuate the response of nonculprit plaque to statin therapy?: A serial optical coherence tomography study

      Objectives The aim of this study was to determine if spotty calcification decreases the response of plaque progression to statin therapy. Background Previous studies showed that the presence of spotty calcification is a marker of vulnerable plaque. However, the relationship between spotty calcification and plaque progression is not clear. Methods Ninety-six nonculprit lipid-rich plaques in 69 patients who received serial optical coherence tomography (OCT) imaging were included. Plaques were divided into three groups: spotty calcification ( n = 38), calcified ( n = 12) and noncalcified ( n = 46) plaques. Spotty calcification was identified by the presence of a lesion <4 mm in length with ...

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      Mentions: Shaosong Zhang Abbot Harbin Medical University

    6. EROSION Study (Effective Anti-Thrombotic Therapy Without Stenting: Intravascular Optical Coherence Tomography–Based Management in Plaque Erosion)

      Explore Circulation Cardiology
      EROSION Study (Effective Anti-Thrombotic Therapy Without Stenting: Intravascular Optical Coherence Tomography–Based Management in Plaque Erosion)

      Background— The initial EROSION study (Effective Anti-Thrombotic Therapy Without Stenting: Intravascular Optical Coherence Tomography–Based Management in Plaque Erosion) demonstrated that patients with acute coronary syndrome caused by plaque erosion might be stabilized with aspirin and ticagrelor without stenting for ≤1 month. However, a long-term evaluation of outcomes is lacking. The aim of this study was to assess whether the initial benefit of noninterventional therapy for patients with acute coronary syndrome caused by plaque erosion is maintained for ≤1 year. Methods and Results— Among 53 patients who completed clinical follow-up, 49 underwent repeat optical coherence tomography imaging at 1 year ...

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      Mentions: Massachusetts General Hospital Ik-Kyung Jang Shaosong Zhang

    7. Impact of Cigarette Smoking and Smoking Cessation on Stent Changes as Determined by Optical Coherence Tomography after Sirolimus Stent Implantation

      Explore American Journal of Cardiology Cardiology
      Impact of Cigarette Smoking and Smoking Cessation on Stent Changes as Determined by Optical Coherence Tomography after Sirolimus Stent Implantation

      There is debate regarding whether smoking results in microstructural changes after stenting. The aim of this study was to evaluate the microstructural changes after stenting in patients with different smoking statuses. We retrospectively identified 220 sirolimus-eluting stents in 179 patients who underwent follow-up optical coherence tomography examination 12 months after sirolimus stenting. Subjects were classified as current smokers (CS, n=31), smoking cessation ≤1 year (SC1Y, n=36), smoking cessation >1 year (SC>1Y, n=27) and never smokers (NS, n=85). The neointimal hyperplasia (NIH) area was larger in CS than NS (1.04±0.72 mm 2 versus ...

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      Mentions: Harbin Medical University Jingbo Hou Bo Yu

    8. Impact of statins therapy on morphological changes in lipid-rich plaques stratified by 10-Year framingham risk score: A serial optical coherence tomography study

      Explore impactjournals Cardiology
      Impact of statins therapy on morphological changes in lipid-rich plaques stratified by 10-Year framingham risk score: A serial optical coherence tomography study

      The aim of the study was to investigate the impact of statins therapy on morphological changes of lipid-rich plaques by OCT (optical coherence tomography) in patients with known CHD (coronary heart disease), stratified by FRS. Ninety-seven lipid-rich plaques from sixty-nine patients who received statins therapy and underwent serial OCT images (baseline, 6-month and 12-month) were divided into 2 groups according to the FRS (framingham risk score): low risk group A (FRS<10%, N=35, n=45), moderate to high risk group B (FRS≥10%, N=34, n=52). Fibrous cap thickness (FCT) was measured at its thinnest part 3 times ...

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      Mentions: Shaosong Zhang Harbin Medical University Yan Wang

    9. Chronic total occlusion is associated with a higher incidence of malapposition and uncovered stent struts: OCT findings at 6 months following DES implantation

      Explore Wiley Online Library Cardiology
      Chronic total occlusion is associated with a higher incidence of malapposition and uncovered stent struts: OCT findings at 6 months following DES implantation

      Objectives To compare stent coverage and malapposition in patients with chronic total occlusion (CTO) lesions and non-CTO lesions (including lipid-rich plaque [LRP] and non-lipid-rich plaque [non-LRP]) after drug-eluting stent (DES) implantation by optical coherence tomography (OCT). Background Different initial lesion characteristics may be related to heterogeneous vessel responses after DES implantation. However, the vessel response in patients with CTO and non-CTO lesions after stenting is unclear. Methods We retrospectively enrolled 64 patients with 68 target lesions. All of the patients underwent OCT imaging immediate after stenting and 6 months after stenting. LRP was defined as the plaque with lipid content ...

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      Mentions: Shaosong Zhang Harbin Medical University Jingbo Hou

    10. Management and Outcome of Patients With Acute Coronary Syndrome Caused by Plaque Rupture Versus Plaque Erosion: An Intravascular Optical Coherence Tomography Study

      Explore jaha.ahajournals.org Cardiology
      Management and Outcome of Patients With Acute Coronary Syndrome Caused by Plaque Rupture Versus Plaque Erosion: An Intravascular Optical Coherence Tomography Study

      Background Plaque rupture and erosion are the 2 most common mechanisms for acute coronary syndromes. However, the outcome of these 2 distinct pathologies in patients with acute coronary syndromes has never been studied. Methods and Results We retrospectively studied 141 patients with acute coronary syndromes who underwent optical coherence tomography ( OCT ) imaging of the culprit lesion prior to stenting from the Massachusetts General Hospital OCT Registry. Management (stent versus no stent), poststent OCT findings, and outcomes were compared. Among the 141 culprit lesions, rupture was found in 79 (56%) patients and erosion in 62 (44%). Stent implantation was performed in ...

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      Mentions: Massachusetts General Hospital Ik-Kyung Jang Shaosong Zhang
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    Management and Outcome of Patients With Acute Coronary Syndrome Caused by Plaque Rupture Versus Plaque Erosion: An Intravascular Optical Coherence Tomography Study Chronic total occlusion is associated with a higher incidence of malapposition and uncovered stent struts: OCT findings at 6 months following DES implantation Impact of statins therapy on morphological changes in lipid-rich plaques stratified by 10-Year framingham risk score: A serial optical coherence tomography study Impact of Cigarette Smoking and Smoking Cessation on Stent Changes as Determined by Optical Coherence Tomography after Sirolimus Stent Implantation EROSION Study (Effective Anti-Thrombotic Therapy Without Stenting: Intravascular Optical Coherence Tomography–Based Management in Plaque Erosion) Does spotty calcification attenuate the response of nonculprit plaque to statin therapy?: A serial optical coherence tomography study In vivo predictors of plaque erosion in patients with ST-segment elevation myocardial infarction: a clinical, angiographical, and intravascular optical coherence tomography study Impact of vessel curvature on neointimal healing after stent implantation as assessed by optical coherence tomography Pre-infarction Angina and Culprit Lesion Morphologies in Patients with a First ST-segment Elevation Acute Myocardial Infarction: Insights from In Vivo Optical Coherence Tomography Culprit lesion morphology in young patients with st-segment elevated myocardial infarction: A clinical, angiographic and optical coherence tomography study Medical treatment of inflammatory punctual stenosis monitored by anterior segment optical coherence tomography Development and Validation of a Deep Learning System for Diagnosing Glaucoma Using Optical Coherence Tomography