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Okada K, Kikuchi S, Kuji S, Nakayama N, Maejima N, Matsuzawa Y, Iwahashi N, Kosuge M, Ebina T, Kimura K, Tamura K, Hibi K. Impact of early intervention with alogliptin on coronary plaque regression and stabilization in patients with acute coronary syndromes. Atherosclerosis 2022; 360:1-7. [DOI: 10.1016/j.atherosclerosis.2022.09.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 09/01/2022] [Accepted: 09/13/2022] [Indexed: 11/02/2022]
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What Is Hidden Behind Yellow Pixels: from Pathology to Intravascular Imaging of Atherosclerotic Plaque. Curr Atheroscler Rep 2022; 24:97-108. [PMID: 35107762 DOI: 10.1007/s11883-022-00990-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/10/2021] [Indexed: 11/03/2022]
Abstract
PURPOSE OF REVIEW Intravascular imaging systems can identify lipid-rich and vulnerable plaques and help in treatment guidance. The comparability of different intracoronary imaging methods remains unclear. In this paper, we review atherosclerotic plaque pathology, plaque-stabilising effects of different lipid-lowering therapies and usage of intravascular imaging modalities. We present the results of our study in which we evaluated the correlation of the intravascular ultrasound iMAP system (iMAP-IVUS) and near-infrared spectroscopy (NIRS) in the diagnosis of vulnerable coronary plaques. RECENT FINDINGS Lipids have an essential contribution to plaque evolution and vulnerability. Increase in plaque vulnerability alone even without increase in plaque burden defines progression of atherosclerosis. Lipidic tissue has a significant diagnostic value in patient risk stratification and can serve as a treatment target. Different vulnerable plaque parameters can be visualised with iMAP-IVUS and NIRS. Intravascular imaging systems can differ with regard to their sensitivity, specificity and limitations. Lipid-lowering therapy is crucial in plaque stabilisation.
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Cardio-ankle vascular index is associated with coronary plaque composition assessed with iMAP-intravascular ultrasound in patients with coronary artery disease. J Cardiol 2021; 78:502-508. [PMID: 34284942 DOI: 10.1016/j.jjcc.2021.05.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 04/26/2021] [Accepted: 05/14/2021] [Indexed: 11/21/2022]
Abstract
BACKGROUND The cardio-ankle vascular index (CAVI) is an indicator of arterial stiffness and has been reported to be associated with the severity of coronary artery disease and cardiovascular events. However, whether CAVI can predict the composition of coronary plaques remains unclear. METHODS We enrolled 208 patients who underwent percutaneous coronary intervention (PCI) for culprit lesions evaluated with iMAP-intravascular ultrasound (IVUS), a radiofrequency imaging system for characterizing tissues. iMAP-IVUS classified the culprit plaque composition as fibrotic, lipidic, necrotic, or calcified, and the respective absolute volumes [fibrotic volume (FV), lipidic volume (LV), necrotic volume NV, and calcified volume] and their ratios (%) within the total plaque volume were calculated. A plaque with a median %NV of ≥ 33.2% was defined as a larger NV (LNV) plaque. We measured CAVI and divided the patients into two groups according to CAVI ≥8 (high CAVI, n = 164) or <8 (low CAVI, n = 44). RESULTS Culprit plaques had significantly greater absolute NV (p = 0.016), %NV (p = 0.01), and smaller %FV (p = 0.02) in patients with high CAVI than in those with low CAVI. Patients with high CAVI had a higher prevalence of LNV plaques in culprit lesions than those with low CAVI (54% vs. 34%, p = 0.026). CAVI correlated significantly and positively with absolute NV, LV, and negatively with %FV. In logistic regression analysis after adjustment for the classic coronary risk factors and possible variables associated with vulnerable plaques, high CAVI had an independent and significant association with the presence of LNV plaques (OR, 3.37; 95% CI, 1.45-7.79; p = 0.0032). CONCLUSIONS A high CAVI is associated with the composition of coronary culprit plaques, particularly increased amount of necrotic tissue, in patients with coronary artery disease undergoing PCI .
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Su G, Wang T, Zhang T, Yang HX, Yu SS, Dai WL, Mi SH. Urinary 8-iso-prostaglandin F 2α as a risk marker for the vulnerability of culprit plaque in diabetic patients with stable coronary artery disease. Prostaglandins Leukot Essent Fatty Acids 2019; 140:11-17. [PMID: 30553398 DOI: 10.1016/j.plefa.2018.11.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Revised: 11/15/2018] [Accepted: 11/20/2018] [Indexed: 02/07/2023]
Abstract
We evaluated the association of urinary excretion of 8-iso-prostaglandin F2α (8-iso-PGF2α) with the vulnerability of culprit lesions in 156 age- and sex-matched diabetic stable coronary artery disease (CAD) patients with or without thin-capped fibroatheroma (TCFA) identified by iMAP intravascular ultrasound. Fasting urinary 8-iso-PGF2α level was measured and corrected by creatinine clearance. Compared to non-TCFA group, patients with TCFA had higher urinary 8-iso-PGF2α levels [114.6 (71.1, 181.5) vs. 83.0 (63.2, 138.2) pmol/mmolCr, P = 0.012]. Urinary 8-iso-PGF2α level was positively correlated with percent necrotic volume of culprit lesion (r = 0.218, P = 0.006). High urinary 8-iso-PGF2α level (OR 2.941, P = 0.009) was independently associated with the presence of TCFA and displayed a significant value in predicting TCFA plaques in study patients. The current study indicated that urinary 8-iso-PGF2α may be an important surrogate marker for the vulnerability of culprit lesion in diabetic patients with CAD.
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Affiliation(s)
- Gong Su
- Center of Cardiology, Beijing An Zhen Hospital, Capital Medical University, No. 2 Anzhen Road, Chaoyang District, Beijing 100029, China.
| | - Tao Wang
- Department of Thoracic Surgery, People Liberation Army General Hospital, Beijing 100853, China
| | - Tao Zhang
- Center of Cardiology, Beijing An Zhen Hospital, Capital Medical University, No. 2 Anzhen Road, Chaoyang District, Beijing 100029, China
| | - Hong-Xia Yang
- Center of Cardiology, Beijing An Zhen Hospital, Capital Medical University, No. 2 Anzhen Road, Chaoyang District, Beijing 100029, China
| | - Shan-Shan Yu
- Center of Cardiology, Beijing An Zhen Hospital, Capital Medical University, No. 2 Anzhen Road, Chaoyang District, Beijing 100029, China
| | - Wen-Long Dai
- Center of Cardiology, Beijing An Zhen Hospital, Capital Medical University, No. 2 Anzhen Road, Chaoyang District, Beijing 100029, China
| | - Shu-Hua Mi
- Center of Cardiology, Beijing An Zhen Hospital, Capital Medical University, No. 2 Anzhen Road, Chaoyang District, Beijing 100029, China
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Mintz GS. Understanding Why and When Optical Coherence Tomography Does Not Detect Vulnerable Plaques: Is It Important? Circ Cardiovasc Interv 2017; 9:CIRCINTERVENTIONS.116.004144. [PMID: 27406991 DOI: 10.1161/circinterventions.116.004144] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Gary S Mintz
- From the Cardiovascular Research Foundation, New York, NY.
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Kakuta K, Dohi K, Miyoshi M, Yamanaka T, Kawamura M, Masuda J, Kurita T, Ogura T, Yamada N, Sumida Y, Ito M. Impact of renal function on the underlying pathophysiology of coronary plaque composition in patients with type 2 diabetes mellitus. Cardiovasc Diabetol 2017; 16:131. [PMID: 29025416 PMCID: PMC5639771 DOI: 10.1186/s12933-017-0618-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Accepted: 10/06/2017] [Indexed: 02/03/2023] Open
Abstract
BACKGROUND Both the progression of diabetic kidney disease and increased glycemic variability play important roles in the pathogenesis of coronary plaque formation via inflammatory pathways in patients with type 2 diabetes mellitus (T2DM). Therefore we evaluated the role of renal function in the contributory effects of blood glucose fluctuations and blood levels of inflammatory cytokine concentrations on the tissue characteristics of coronary plaques in patients with T2DM. METHODS We prospectively enrolled 71 T2DM patients (mean age: 68 ± 9, male 79%) with 153 coronary artery lesions. Patients were divided into 2 groups according to their estimated glomerular filtration rate (eGFR) levels: Group 1 (≥ 60 mL/min/1.73 m2, n = 40) and Group 2 (< 60 mL/min/1.73 m2, n = 31). All patients underwent continuous glucose monitoring (CGM) for 120 h and the mean amplitude of glycemic excursions (MAGE) was calculated. Serum tumor necrosis factor (TNF)-α was also measured. In addition, gray-scale coronary intravascular ultrasound (IVUS) and iMap-IVUS were performed in the coronary lesions with < 50% luminal reduction. RESULTS In Group 1, MAGE correlated with percent lipidic volume (%LV) (r = 0.477, p = 0.002). In this group, stepwise multivariate linear regression analyses showed that only MAGE was independently associated with %LV (β = 0.477, p = 0.002). In contrast, in Group 2, only serum TNF-α correlated with percent fibrotic volume (%FV) (r = - 0.471, p = 0.007), %LV (r = 0.496, p = 0.005) and percent necrotic volume (%NV) (r = 0.426, p = 0.017). In this group, stepwise multivariate linear regression analyses showed that only serum TNF-α was independently associated with each tissue characteristic (%FV β = - 0.471 and p = 0.007, %LV β = 0.496 and p = 0.005, %NV: β = 0.426 and p = 0.017). CONCLUSIONS In T2DM patients, the tissue characteristics of coronary plaques were associated with MAGE in patients with eGFR ≥ 60 mL/min/1.73 m2 and with serum TNF-α in those with eGFR < 60 mL/min/1.73 m2.
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Affiliation(s)
- Kentaro Kakuta
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, 514-8507, Japan.,Department of Cardiology, JCHO Yokkaichi Hazu Medical Center, Yokkaichi, Japan
| | - Kaoru Dohi
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, 514-8507, Japan.
| | - Miho Miyoshi
- Department of Diabetes and Endocrinology, JCHO Yokkaichi Hazu Medical Center, Yokkaichi, Japan
| | - Takashi Yamanaka
- Department of Cardiology, JCHO Yokkaichi Hazu Medical Center, Yokkaichi, Japan
| | - Masaki Kawamura
- Department of Cardiology, JCHO Yokkaichi Hazu Medical Center, Yokkaichi, Japan
| | - Jun Masuda
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, 514-8507, Japan
| | - Tairo Kurita
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, 514-8507, Japan
| | - Toru Ogura
- Clinical Research Support Center, Mie University Hospital, Tsu, Japan
| | - Norikazu Yamada
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, 514-8507, Japan
| | - Yasuhiro Sumida
- Department of Diabetes and Endocrinology, JCHO Yokkaichi Hazu Medical Center, Yokkaichi, Japan
| | - Masaaki Ito
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, 514-8507, Japan
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Matsumoto A, Yamamoto H, Matsuoka T, Kayama K, Onishi S, Matsuo N, Kihara S. Cystatin C-Adiponectin Complex in Plasma Associates with Coronary Plaque Instability. J Atheroscler Thromb 2017; 24:970-979. [PMID: 28321013 PMCID: PMC5587523 DOI: 10.5551/jat.39545] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: Adiponectin (APN) is an adipocyte-derived bioactive molecule with antiatherogenic properties. We previously reported that cystatin C (CysC) abolished the anti-atherogenic effects of APN. We aimed to elucidate the clinical significance of CysC–APN complex in patients with coronary artery disease (CAD). Methods: We enrolled 43 stable CAD male patients to examine the relationship between CysC–APN complex and coronary plaque characteristics. Serum was immunoprecipitated by the anti-APN antibody and immunoblotted by the anti-CysC antibody to demonstrate the presence of CysC–APN complexes in vivo. To confirm their binding in vitro, HEK293T cell lysates overexpressing myc-APN and FLAG-CysC were immunoprecipitated with an anti-myc or anti-FLAG antibody, followed by immunoblotting with an anti-APN or anti-CysC antibody. Results: CysC was identified as a specific co-immunoprecipitant with APN by the anti-APN antibody in human serum. In vitro, FLAG-CysC was co-immunoprecipitated with myc-APN by the antimyc antibody and myc-APN was co-immunoprecipitated with FLAG-CysC by the anti-FLAG antibody. Among CAD patients, serum CysC–APN complex levels negatively correlated with fibrotic components of coronary plaques and positively correlated with either necrotic or lipidic plus necrotic components. Plaque burden negatively correlated with serum APN levels but not serum CysC–APN complex levels. Serum CysC levels had no association with plaque characteristics. In multivariate analysis, CysC–APN complex levels were identified as the strongest negative factor for fibrotic components and the strongest positive factor for both necrotic and lipidic plus necrotic components. Conclusion: Measuring serum CysC–APN complex levels is helpful for evaluating coronary plaque instability in CAD patients.
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Affiliation(s)
- Akane Matsumoto
- Department of Biomedical Informatics, Division of Health Sciences, Osaka University Graduate School of Medicine
| | - Hiroyasu Yamamoto
- Department of Biomedical Informatics, Division of Health Sciences, Osaka University Graduate School of Medicine
| | - Tetsuro Matsuoka
- Department of Cardiology, Hyogo Prefectural Nishinomiya Hospital
| | - Kento Kayama
- Department of Biomedical Informatics, Division of Health Sciences, Osaka University Graduate School of Medicine
| | - Sumire Onishi
- Department of Biomedical Informatics, Division of Health Sciences, Osaka University Graduate School of Medicine
| | - Natsumi Matsuo
- Department of Biomedical Informatics, Division of Health Sciences, Osaka University Graduate School of Medicine
| | - Shinji Kihara
- Department of Biomedical Informatics, Division of Health Sciences, Osaka University Graduate School of Medicine
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Souza CF, Maehara A, Mintz GS, Matsumura M, Alves CMR, Carlos Carvalho A, Caixeta A. Tissue characterization and phenotype classification in patients presenting with acute myocardial infarction: Insights from the iWonder study. Catheter Cardiovasc Interv 2017; 90:1107-1114. [PMID: 28191713 DOI: 10.1002/ccd.26954] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Revised: 12/20/2016] [Accepted: 01/01/2017] [Indexed: 11/12/2022]
Abstract
OBJECTIVES We sought to assess a new modality of radiofrequency intravascular ultrasound (IVUS) called iMAP-IVUS (Boston Scientific, Santa Clara, California) during the evaluation of patients presenting with high-risk acute coronary syndromes. BACKGROUND There are limited data on plaque tissue characterization and phenotype classification using iMAP-IVUS. METHODS In the iWonder study patients presenting with ST-elevation myocardial infarction (STEMI) or non-STEMI underwent three-vessel grayscale IVUS and iMAP-IVUS tissue characterization prior to percutaneous intervention. In total 385 lesions from 100 patients were divided into culprit (n = 100) and nonculprit (n = 285) lesions. Lesion phenotype was classified as (i) thin-cap fibroatheroma (iMAP-derived TCFA); (ii) thick-cap fibroatheroma; (iii) pathological intimal thickening; (iv) fibrotic plaque; and (v) fibrocalcific plaque. RESULTS Culprit lesions had smaller minimum lumen cross-sectional area (MLA) with greater plaque burden compared to non-culprit lesions. Volumetric analysis showed that culprit lesions had longer length and larger vessel and plaque volumes compared to non-culprit lesions. iMAP-IVUS revealed that culprit lesions presented more NC and fibrofatty volume, both at lesion level and at the MLA site (all P < 0.001). Any fibroatheroma was more frequently identified in culprit lesions compared with non-culprit lesions (93% vs. 78.9%, P = 0.001), anywhere within the lesion 19.0%, P < 0.001) as well as at the MLA site (18.0% vs. 9.5%, P = 0.07). CONCLUSIONS Three-vessel radiofrequency iMAP-IVUS demonstrated a greater plaque burden and higher prevalence of any fibroatheroma as well as iMAP-derived TCFAs in culprit versus non-culprit lesions in patients presenting with STEMI or non-STEMI undergoing percutaneous coronary intervention. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Cristiano F Souza
- Department of Interventional Cardiology, Federal University of São Paulo, São Paulo, Brazil
| | - Akiko Maehara
- IVUS core laboratory, Cardiovascular Research Foundation, New York, New York.,Department of Interventional Cardiology, Columbia University Medical Center, New York, New York
| | - Gary S Mintz
- IVUS core laboratory, Cardiovascular Research Foundation, New York, New York
| | - Mitsuaki Matsumura
- IVUS core laboratory, Cardiovascular Research Foundation, New York, New York
| | - Claudia M R Alves
- Department of Interventional Cardiology, Federal University of São Paulo, São Paulo, Brazil
| | | | - Adriano Caixeta
- Department of Interventional Cardiology, Federal University of São Paulo, São Paulo, Brazil.,Department of Interventional Cardiology, Hospital Israelita Albert Einstein, São Paulo, Brazil
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Spiliopoulos S, Kitrou P, Katsanos K, Karnabatidis D. FD-OCT and IVUS intravascular imaging modalities in peripheral vasculature. Expert Rev Med Devices 2017; 14:127-134. [PMID: 28064551 DOI: 10.1080/17434440.2017.1280391] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Intra-Vascular Ultra-Sound (IVUS) and Frequency Domain-Optical Coherence Tomography (FD-OCT), in vivo, intra-vascular, imaging modalities, widely used in the field of coronary disease, have been recently implemented in peripheral endovascular procedures, for procedural assessment, plaque characterization and determination of predictors of treatment outcomes. Their unique characteristics have also been used in order to provide additional features and improve the performance of re-entry devices and atherotomes. Areas covered: Present review focuses on available literature regarding these two promising imaging technologies in the peripheral vasculature, highlighting the added value produced by their use in endovascular therapy, their limitations and their utilization in new endovascular devices. Authors also provide their future perspective and the possible benefits in understanding vascular behavior and lesion characterization in peripheral endovascular interventions. Expert commentary: By providing both quantitative but also qualitative data on vessel and lesion morphology, intravascular imaging modalities offer a valid solution for endovascular treatment evaluation and outcome presentation homogeneity.
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Affiliation(s)
- S Spiliopoulos
- a 2nd Department of Radiology, Division of Interventional Radiology , Attikon University General Hospital , Athens , Greece
| | - P Kitrou
- b Interventional Radiology Department , Patras University Hospital , Patras , Greece
| | - K Katsanos
- b Interventional Radiology Department , Patras University Hospital , Patras , Greece
- c Interventional Radiology Department , Guy's and St Thomas Hospitals, NHS Foundation Trust , London , UK
| | - D Karnabatidis
- b Interventional Radiology Department , Patras University Hospital , Patras , Greece
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Caixeta A, Maehara A, Mintz GS. Intravascular Ultrasound and Virtual Histology. Interv Cardiol 2016. [DOI: 10.1002/9781118983652.ch7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Affiliation(s)
- Adriano Caixeta
- Hospital Israelita Albert Einstein; Universidade Federal de São Paulo; São Paulo Brazil
| | - Akiko Maehara
- Columbia University Medical Center and the Cardiovascular Research Foundation; New York NY USA
| | - Gary S. Mintz
- Columbia University Medical Center and the Cardiovascular Research Foundation; New York NY USA
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Affiliation(s)
- Nobuaki Suzuki
- Department of Medicine, Teikyo University School of Medicine
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