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Bergstrand S, Jonasson H, Fredriksson I, Larsson M, Östgren CJ, Strömberg T. Association between cardiovascular risk profile and impaired microvascular function in a Swedish middle-aged cohort (the SCAPIS study). Eur J Prev Cardiol 2024; 31:1152-1161. [PMID: 38333959 DOI: 10.1093/eurjpc/zwae052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 01/04/2024] [Accepted: 02/05/2024] [Indexed: 02/10/2024]
Abstract
AIMS The aim was to investigate the relationship between microvascular function, cardiovascular risk profile, and subclinical atherosclerotic burden. METHODS AND RESULTS The study enrolled 3809 individuals, 50-65 years old, participating in the population-based observational cross-sectional Swedish CArdioPulmonary bioImage Study. Microvascular function was assessed in forearm skin using an arterial occlusion and release protocol determining peak blood oxygen saturation (OxyP). Cardiovascular risk was calculated using the updated Systematic Coronary Risk Evaluation [SCORE2; 10-year risk of fatal and non-fatal cardiovascular disease (CVD) events]. The OxyP was compared with coronary artery calcification score (CACS) and to plaques in the carotid arteries. Individuals with OxyP values in the lowest quartile (Q1; impaired microvascular function) had a mean SCORE2 of 5.8% compared with 3.8% in those with the highest values of OxyP (Q4), a relative risk increase of 53%. The risk of having a SCORE2 > 10% was five times higher for those in Q1 (odds ratio: 4.96, 95% confidence interval: 2.76-8.93) vs. Q4 when adjusting for body mass index and high-sensitivity C-reactive protein. The OxyP was lower in individuals with CACS > 0 and in those with both carotid plaques and CACS > 0, compared with individuals without subclinical atherosclerotic burdens (87.5 ± 5.6% and 86.9 ± 6.0%, vs. 88.6 ± 5.8%, P < 0.01). CONCLUSION In a population without CVD or diabetes mellitus, impaired microvascular function is associated with cardiovascular risk profiles such as higher SCORE2 risk and CACS. We suggest that OxyP may serve as a microcirculatory functional marker of subclinical atherosclerosis and CVD risk that is not detected by structural assessments.
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Affiliation(s)
- Sara Bergstrand
- Department of Health, Medicine and Caring Sciences, Linköping University, Building 511, Entrance 75, Room 13.1309 Campus US, 581 83 Linköping, Sweden
| | - Hanna Jonasson
- Department of Biomedical Engineering, Linköping University, Linköping, Sweden
| | - Ingemar Fredriksson
- Department of Biomedical Engineering, Linköping University, Linköping, Sweden
- Perimed AB, Järfälla, Stockholm, Sweden
| | - Marcus Larsson
- Department of Biomedical Engineering, Linköping University, Linköping, Sweden
| | - Carl Johan Östgren
- Department of Health, Medicine and Caring Sciences, Linköping University, Building 511, Entrance 75, Room 13.1309 Campus US, 581 83 Linköping, Sweden
- Centre of Medical Image Science and Visualization (CMIV), Linköping University, Linköping, Sweden
| | - Tomas Strömberg
- Department of Biomedical Engineering, Linköping University, Linköping, Sweden
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2
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Jiang YN, Gao Y, Zhang YS, Min CY, Shen LT, Yan WF, Yang ZG, Shi R, Li Y. Aggravating effect of abnormal low-density protein cholesterol level on coronary atherosclerotic plaque in type 2 diabetes mellitus patients assessed by coronary computed tomography angiography. Cardiovasc Diabetol 2024; 23:234. [PMID: 38965584 PMCID: PMC11225366 DOI: 10.1186/s12933-024-02304-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Accepted: 06/16/2024] [Indexed: 07/06/2024] Open
Abstract
BACKGROUND The abnormal low-density protein cholesterol (LDL-C) level in the development of atherosclerosis is often comorbid in individuals with type 2 diabetes mellitus(T2DM). This study aimed to investigate the aggravating effect of abnormal LDL-C levels on coronary artery plaques assessed by coronary computed tomography angiography (CCTA) in T2DM. MATERIALS AND METHODS This study collected 3439 T2DM patients from September 2011 to February 2022. Comparative analysis of differences in coronary plaque characteristics was performed for the patients between the normal LDL-C level group and the abnormal LDL-C level group. Factors with P < 0.1 in the univariable linear regression analyses were included in the multivariable linear stepwise regression. RESULTS A total of 2820 eligible T2DM patients were included and identified as the normal LDL-C level group (n = 973) and the abnormal LDL-C level group (n = 1847). Compared with the normal LDL-C level group, both on a per-patient basis and per-segment basis, patients with abnormal LDL-C level showed more calcified plaques, partially calcified plaques, low attenuation plaques, positive remodellings, and spotty calcifications. Multivessel obstructive disease (MVD), nonobstructive stenosis (NOS), obstructive stenosis (OS), plaque involvement degree (PID), segment stenosis score (SSS), and segment involvement scores (SIS) were likely higher in the abnormal LDL-C level group than that in the normal LDL-C level group (P < 0.001). In multivariable linear stepwise regression, the abnormal LDL-C level was validated as an independent positive correlation with high-risk coronary plaques and the degree and extent of stenosis caused by plaques (low attenuation plaque: β = 0.116; positive remodelling: β = 0.138; spotty calcification: β = 0.091; NOS: β = 0.427; OS: β = 0.659: SIS: β = 1.114; SSS: β = 2.987; PID: β = 2.716, all P value < 0.001). CONCLUSIONS Abnormal LDL-C levels aggravate atherosclerotic cardiovascular disease (ASCVD) in patients with T2DM. Clinical attention deserves to be caught by the tailored identification of cardiovascular risk categories in T2DM individuals and the achievement of the corresponding LDL-C treatment goal.
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Affiliation(s)
- Yi-Ning Jiang
- Department of Radiology, West China Hospital, Sichuan University, 37# Guo Xue Xiang, Chengdu, 610041, Sichuan, China
| | - Yue Gao
- Department of Radiology, West China Hospital, Sichuan University, 37# Guo Xue Xiang, Chengdu, 610041, Sichuan, China
| | - Yu-Shan Zhang
- Department of Radiology, West China Hospital, Sichuan University, 37# Guo Xue Xiang, Chengdu, 610041, Sichuan, China
| | - Chen-Yan Min
- Department of Radiology, West China Hospital, Sichuan University, 37# Guo Xue Xiang, Chengdu, 610041, Sichuan, China
| | - Li-Ting Shen
- Department of Radiology, West China Hospital, Sichuan University, 37# Guo Xue Xiang, Chengdu, 610041, Sichuan, China
| | - Wei-Feng Yan
- Department of Radiology, West China Hospital, Sichuan University, 37# Guo Xue Xiang, Chengdu, 610041, Sichuan, China
| | - Zhi-Gang Yang
- Department of Radiology, West China Hospital, Sichuan University, 37# Guo Xue Xiang, Chengdu, 610041, Sichuan, China
| | - Rui Shi
- Department of Radiology, West China Hospital, Sichuan University, 37# Guo Xue Xiang, Chengdu, 610041, Sichuan, China.
| | - Yuan Li
- Department of Radiology, West China Hospital, Sichuan University, 37# Guo Xue Xiang, Chengdu, 610041, Sichuan, China.
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3
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Ramses R, Kennedy S, Good R, Oldroyd KG, Mcginty S. Performance of drug-coated balloons in coronary and below-the-knee arteries: Anatomical, physiological and pathological considerations. Vascul Pharmacol 2024; 155:107366. [PMID: 38479462 DOI: 10.1016/j.vph.2024.107366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Revised: 02/24/2024] [Accepted: 03/08/2024] [Indexed: 03/22/2024]
Abstract
Below-the-knee (infrapopliteal) atherosclerotic disease, which presents as chronic limb-threatening ischemia (CLTI) in nearly 50% of patients, represents a treatment challenge when it comes to the endovascular intervention arm of management. Due to reduced tissue perfusion, patients usually experience pain at rest and atrophic changes correlated to the extent of the compromised perfusion. Unfortunately, the prognosis remains unsatisfactory with 30% of patients requiring major amputation and a mortality rate of 25% within 1 year. To date, randomized multicentre trials of endovascular intervention have shown that drug-eluting stents (DES) increase patency rate and lower target lesion revascularization rate compared to plain balloon angioplasty and bare-metal stents. The majority of these trials recruited patients with focal infrapopliteal lesions, while most patients requiring endovascular intervention have complex and diffuse atherosclerotic disease. Moreover, due to the nature of the infrapopliteal arteries, the use of long DES is limited. Following recent results of drug-coated balloons (DCBs) in the treatment of femoropopliteal and coronary arteries, it was hoped that similar effective results would be achieved in the infrapopliteal arteries. In reality, multicentre trials have failed to support the proposed hypothesis and no advantage was found in using DCBs in comparison to plain balloon angioplasty. This review aims to explore anatomical, physiological and pathological differences between lesions of the infrapopliteal and coronary arteries to explain the differences in outcome when using DCBs.
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Affiliation(s)
- Rafic Ramses
- Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Institute of Cardiology, Catholic University of the Sacred Heart, Rome, Italy; Division of Biomedical Engineering, University of Glasgow, United Kingdom
| | - Simon Kennedy
- School of Cardiovascular and Metabolic Health, University of Glasgow, United Kingdom
| | - Richard Good
- School of Cardiovascular and Metabolic Health, University of Glasgow, United Kingdom; West of Scotland Regional Heart & Lung Centre, Golden Jubilee National Hospital, Glasgow, United Kingdom
| | - Keith G Oldroyd
- School of Cardiovascular and Metabolic Health, University of Glasgow, United Kingdom; West of Scotland Regional Heart & Lung Centre, Golden Jubilee National Hospital, Glasgow, United Kingdom
| | - Sean Mcginty
- Division of Biomedical Engineering, University of Glasgow, United Kingdom.
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4
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Suzuki K, Kinoshita D, Niida T, Yuki H, Fujimoto D, Dey D, Lee H, McNulty I, Takano M, Mizuno K, Ferencik M, Kakuta T, Jang IK. Computed Tomography Angiography Characteristics of Thin-Cap Fibroatheroma in Patients With Diabetes. J Am Heart Assoc 2024; 13:e033639. [PMID: 38742509 PMCID: PMC11179821 DOI: 10.1161/jaha.123.033639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Accepted: 03/29/2024] [Indexed: 05/16/2024]
Abstract
BACKGROUND It was recently reported that thin-cap fibroatheroma (TCFA) detected by optical coherence tomography was an independent predictor of future cardiac events in patients with diabetes. However, the clinical usefulness of this finding is limited by the invasive nature of optical coherence tomography. Computed tomography angiography (CTA) characteristics of TCFA have not been systematically studied. The aim of this study was to investigate CTA characteristics of TCFA in patients with diabetes. METHODS AND RESULTS Patients with diabetes who underwent preintervention CTA and optical coherence tomography were included. Qualitative and quantitative analyses were performed for plaques on CTA. TCFA was assessed by optical coherence tomography. Among 366 plaques in 145 patients with diabetes, 111 plaques had TCFA. The prevalence of positive remodeling (74.8% versus 50.6%, P<0.001), low attenuation plaque (63.1% versus 33.7%, P<0.001), napkin-ring sign (32.4% versus 11.0%, P<0.001), and spotty calcification (55.0% versus 34.9%, P<0.001) was significantly higher in TCFA than in non-TCFA. Low-density noncalcified plaque volume (25.4 versus 15.7 mm3, P<0.001) and remodeling index (1.30 versus 1.20, P=0.002) were higher in TCFA than in non-TCFA. The presence of napkin-ring sign, spotty calcification, high low-density noncalcified plaque volume, and high remodeling index were independent predictors of TCFA. When all 4 predictors were present, the probability of TCFA increased to 82.4%. CONCLUSIONS The combined qualitative and quantitative plaque analysis of CTA may be helpful in identifying TCFA in patients with diabetes. REGISTRATION INFORMATION URL: https://www.clinicaltrials.gov; Unique identifier: NCT04523194.
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Affiliation(s)
- Keishi Suzuki
- Cardiology Division, Massachusetts General Hospital Harvard Medical School Boston MA USA
| | - Daisuke Kinoshita
- Cardiology Division, Massachusetts General Hospital Harvard Medical School Boston MA USA
| | - Takayuki Niida
- Cardiology Division, Massachusetts General Hospital Harvard Medical School Boston MA USA
| | - Haruhito Yuki
- Cardiology Division, Massachusetts General Hospital Harvard Medical School Boston MA USA
| | - Daichi Fujimoto
- Cardiology Division, Massachusetts General Hospital Harvard Medical School Boston MA USA
| | - Damini Dey
- Biomedical Imaging Research Institute Cedars-Sinai Medical Center Los Angeles CA USA
| | - Hang Lee
- Biostatistics Center, Massachusetts General Hospital Harvard Medical School Boston MA USA
| | - Iris McNulty
- Cardiology Division, Massachusetts General Hospital Harvard Medical School Boston MA USA
| | - Masamichi Takano
- Cardiovascular Center Nippon Medical School Chiba Hokusoh Hospital Inzai Chiba Japan
| | | | - Maros Ferencik
- Knight Cardiovascular Institute Oregon Health and Science University Portland OR USA
| | - Tsunekazu Kakuta
- Department of Cardiology Tsuchiura Kyodo General Hospital Tsuchiura Ibaraki Japan
| | - Ik-Kyung Jang
- Cardiology Division, Massachusetts General Hospital Harvard Medical School Boston MA USA
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5
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Michaud K, Rotzinger DC, Faouzi M, Grabherr S, Qanadli SD, van der Wal AC, Magnin V. High-risk coronary plaque of sudden cardiac death victims: postmortem CT angiographic features and histopathologic findings. Int J Legal Med 2024:10.1007/s00414-024-03228-w. [PMID: 38594500 DOI: 10.1007/s00414-024-03228-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Accepted: 03/28/2024] [Indexed: 04/11/2024]
Abstract
High-risk coronary plaques (HRP) are characterized in clinical radiological imaging by the presence of low plaque attenuation, a napkin-ring sign (NRS), spotty calcifications (SC) and a positive remodeling index (RI). To evaluate if these signs are detectable in postmortem imaging by a multi-phase postmortem CT angiography (MPMCTA), a retrospective study of a series of autopsy well-documented coronary plaques related to sudden cardiac death (SCD) was performed. Then correlations between histological and radiological findings were described. Fourty SCD cases due to acute coronary syndrome based on clinical history and confirmed at autopsy were selected (28 men and 12 women, age 53.3 ± 10.9). The culprit lesion was mainly situated in the proximal segments of coronary arteries, in the right coronary artery in 23 cases (57.5%), the left anterior descending artery in 13 cases (32.5%), the circumflex artery in 3 cases (7.5%) and in one case in the left main stem. MPMCTA showed a positive RI (≥ 1.1) in 75% of cases with a mean RI 1.39 ± 0.71. RI values were lower in cases with fibrotic plaques. NRS was observed in 40% of cases, low attenuation plaque in 46.3%, and SC in 48.7% of cases. There were significant correlations of the radiological presence of NRS for fibrolipid composition of the plaque (p-value 0.007), severe intraplaque inflammation (p-value 0.017), severe adventitial inflammation (p-value 0.021) and an increased vasa vasorum (p-value 0.012). A significant correlation (p-value 0.002) was observed between the presence of SC at radiological examination and the presence of punctuate/fragmented calcification at histology. In addition, in 58.3% of cases, plaque enhancement was observed, which correlated with plaque inflammation and the fibrolipid composition of the plaque. The coronary artery calcium score was 314 (± 455). There was a poor agreement between stenosis of the lumen at histology versus radiology. Our study shows that the various radiological signs of HRP can be detected in all plaques by MPMCTA, but individually only to a variable extent; plaque enhancement appeared as a new sign of vulnerability. In the postmortem approach, these radiological markers of HRP, should always be applied in combination, which can be useful for developing a predictive model for diagnosing coronary SCD.
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Affiliation(s)
- Katarzyna Michaud
- University Center of Legal Medicine Lausanne - Geneva, Lausanne University Hospital and University of Lausanne, Chemin de la Vulliette 4, Lausanne 25, CH - 1000, Switzerland.
| | - David C Rotzinger
- Department of Diagnostic and Interventional Radiology, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Mohamed Faouzi
- University Center of Legal Medicine Lausanne - Geneva, Lausanne University Hospital and University of Lausanne, Chemin de la Vulliette 4, Lausanne 25, CH - 1000, Switzerland
- Center for Primary Care and Public Health, Division of Biostatistics, Lausanne, Switzerland
| | - Silke Grabherr
- University Center of Legal Medicine Lausanne - Geneva, Lausanne University Hospital and University of Lausanne, Chemin de la Vulliette 4, Lausanne 25, CH - 1000, Switzerland
| | - Salah D Qanadli
- Faculty of Biology and Medicine, University of Lausanne, Lausanne, Switzerland
- Riviera-Chablais Hospital, Rennaz, 1847, Switzerland
| | - Allard C van der Wal
- Amsterdam UMC, Academic Medical Center, Amsterdam, The Netherlands
- Maastricht University Medical Center (MUMC), Maastricht, The Netherlands
| | - Virginie Magnin
- University Center of Legal Medicine Lausanne - Geneva, Lausanne University Hospital and University of Lausanne, Chemin de la Vulliette 4, Lausanne 25, CH - 1000, Switzerland
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Eisenmenger LB, Spahic A, McNally JS, Johnson KM, Song JW, Junn JC. MR Imaging for Intracranial Vessel Wall Imaging: Pearls and Pitfalls. Magn Reson Imaging Clin N Am 2023; 31:461-474. [PMID: 37414472 DOI: 10.1016/j.mric.2023.04.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/08/2023]
Abstract
Conventional vascular imaging methods have primarily focused on evaluating the vascular lumen. However, these techniques are not intended to evaluate vessel wall abnormalities where many cerebrovascular pathologies reside. With increased interest for the visualization and study of the vessel wall, high-resolution vessel wall imaging (VWI) has gained traction.Over the past two decades, there has been a rapid increase in number of VWI publications with improvements in imaging techniques and expansion on clinical applications. With increasing utility and interest in VWI, application of proper protocols and understanding imaging characteristics of vasculopathies are important for the interpreting radiologists to understand.
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Affiliation(s)
- Laura B Eisenmenger
- University of Wisconsin - Madison, 1111 Highland Avenue, Madison, WI 53705, USA.
| | - Alma Spahic
- University of Wisconsin - Madison, 1111 Highland Avenue, Madison, WI 53705, USA
| | | | - Kevin M Johnson
- University of Wisconsin - Madison, 1111 Highland Avenue, Madison, WI 53705, USA
| | - Jae W Song
- University of Pennsylvania, 3400 Spruce Street, Philadelphia, PA 19104, USA
| | - Jacqueline C Junn
- Icahn School of Medicine at Mount Sinai, 1 Gustave Levy Place, Box 1234, New York City, NY 10029, USA
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7
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Pugliese L, Ricci F, Sica G, Scaglione M, Masala S. Non-Contrast and Contrast-Enhanced Cardiac Computed Tomography Imaging in the Diagnostic and Prognostic Evaluation of Coronary Artery Disease. Diagnostics (Basel) 2023; 13:2074. [PMID: 37370969 DOI: 10.3390/diagnostics13122074] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Revised: 06/07/2023] [Accepted: 06/11/2023] [Indexed: 06/29/2023] Open
Abstract
In recent decades, cardiac computed tomography (CT) has emerged as a powerful non-invasive tool for risk stratification, as well as the detection and characterization of coronary artery disease (CAD), which remains the main cause of morbidity and mortality in the world. Advances in technology have favored the increasing use of cardiac CT by allowing better performance with lower radiation doses. Coronary artery calcium, as assessed by non-contrast CT, is considered to be the best marker of subclinical atherosclerosis, and its use is recommended for the refinement of risk assessment in low-to-intermediate risk individuals. In addition, coronary CT angiography (CCTA) has become a gate-keeper to invasive coronary angiography (ICA) and revascularization in patients with acute chest pain by allowing the assessment not only of the extent of lumen stenosis, but also of its hemodynamic significance if combined with the measurement of fractional flow reserve or perfusion imaging. Moreover, CCTA provides a unique incremental value over functional testing and ICA by imaging the vessel wall, thus allowing the assessment of plaque burden, composition, and instability features, in addition to perivascular adipose tissue attenuation, which is a marker of vascular inflammation. There exists the potential to identify the non-obstructive lesions at high risk of progression to plaque rupture by combining all of these measures.
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Affiliation(s)
- Luca Pugliese
- Radiology Unit, Department of Medical-Surgical Sciences and Translational Medicine, Sapienza University of Rome, Sant'Andrea University Hospital, 00189 Rome, Italy
| | - Francesca Ricci
- Radiology Unit, Department of Medical, Surgical and Experimental Sciences, University of Sassari, 07100 Sassari, Italy
| | - Giacomo Sica
- Radiology Unit, Monaldi Hospital, 80131 Napoli, Italy
| | - Mariano Scaglione
- Radiology Unit, Department of Medical, Surgical and Experimental Sciences, University of Sassari, 07100 Sassari, Italy
| | - Salvatore Masala
- Radiology Unit, Department of Medical, Surgical and Experimental Sciences, University of Sassari, 07100 Sassari, Italy
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8
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Zhou M, Yu Y, Chen R, Liu X, Hu Y, Ma Z, Gao L, Jian W, Wang L. Wall shear stress and its role in atherosclerosis. Front Cardiovasc Med 2023; 10:1083547. [PMID: 37077735 PMCID: PMC10106633 DOI: 10.3389/fcvm.2023.1083547] [Citation(s) in RCA: 23] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Accepted: 03/09/2023] [Indexed: 04/05/2023] Open
Abstract
Atherosclerosis (AS) is the major form of cardiovascular disease and the leading cause of morbidity and mortality in countries around the world. Atherosclerosis combines the interactions of systemic risk factors, haemodynamic factors, and biological factors, in which biomechanical and biochemical cues strongly regulate the process of atherosclerosis. The development of atherosclerosis is directly related to hemodynamic disorders and is the most important parameter in the biomechanics of atherosclerosis. The complex blood flow in arteries forms rich WSS vectorial features, including the newly proposed WSS topological skeleton to identify and classify the WSS fixed points and manifolds in complex vascular geometries. The onset of plaque usually occurs in the low WSS area, and the plaque development alters the local WSS topography. low WSS promotes atherosclerosis, while high WSS prevents atherosclerosis. Upon further progression of plaques, high WSS is associated with the formation of vulnerable plaque phenotype. Different types of shear stress can lead to focal differences in plaque composition and to spatial variations in the susceptibility to plaque rupture, atherosclerosis progression and thrombus formation. WSS can potentially gain insight into the initial lesions of AS and the vulnerable phenotype that gradually develops over time. The characteristics of WSS are studied through computational fluid dynamics (CFD) modeling. With the continuous improvement of computer performance-cost ratio, WSS as one of the effective parameters for early diagnosis of atherosclerosis has become a reality and will be worth actively promoting in clinical practice. The research on the pathogenesis of atherosclerosis based on WSS is gradually an academic consensus. This article will comprehensively review the systemic risk factors, hemodynamics and biological factors involved in the formation of atherosclerosis, and combine the application of CFD in hemodynamics, focusing on the mechanism of WSS and the complex interactions between WSS and plaque biological factors. It is expected to lay a foundation for revealing the pathophysiological mechanisms related to abnormal WSS in the progression and transformation of human atherosclerotic plaques.
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Affiliation(s)
- Manli Zhou
- College of Traditional Chinese Medicine, Hunan University of Chinese Medicine, Changsha, China
| | - Yunfeng Yu
- College of Traditional Chinese Medicine, Hunan University of Chinese Medicine, Changsha, China
- The First Affiliated Hospital of Hunan University of Chinese Medicine, Changsha, China
| | - Ruiyi Chen
- The First Affiliated Hospital of Hunan University of Chinese Medicine, Changsha, China
| | - Xingci Liu
- College of Traditional Chinese Medicine, Hunan University of Chinese Medicine, Changsha, China
- The First Affiliated Hospital of Hunan University of Chinese Medicine, Changsha, China
| | - Yilei Hu
- College of Traditional Chinese Medicine, Hunan University of Chinese Medicine, Changsha, China
| | - Zhiyan Ma
- College of Traditional Chinese Medicine, Hunan University of Chinese Medicine, Changsha, China
| | - Lingwei Gao
- College of Traditional Chinese Medicine, Hunan University of Chinese Medicine, Changsha, China
| | - Weixiong Jian
- College of Traditional Chinese Medicine, Hunan University of Chinese Medicine, Changsha, China
- National Key Discipline of Traditional Chinese Medicine Diagnostics, Hunan Provincial Key Laboratory, Hunan University of Chinese Medicine, Changsha, China
- Correspondence: Weixiong Jian Liping Wang
| | - Liping Wang
- College of Rehabilitation Medicine and Health Care, Hunan University of Medicine, Huaihua, China
- Correspondence: Weixiong Jian Liping Wang
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9
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Okada K, Hibi K. Intravascular Ultrasound in Vulnerable Plaque and Acute Coronary Syndrome. Interv Cardiol Clin 2023; 12:155-165. [PMID: 36922057 DOI: 10.1016/j.iccl.2022.10.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Vulnerable plaque plays a pivotal role in the pathogenesis of acute coronary syndrome (ACS), being responsible for most ACS. The concept of vulnerable plaque has evolved with advancements in basic and clinical investigations along with developments and rapid expansion of coronary imaging modalities. Intravascular ultrasound (IVUS) is the first widely applied clinical technology with sufficient tissue penetration and enables us to identify vulnerable plaque and comprehensively understand the pathophysiology of ACS. In this review, we summarize current clinical evidence established by IVUS and the recent advancements in our understanding of vulnerable plaque and its role in ACS management.
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Affiliation(s)
- Kozo Okada
- Division of Cardiology, Yokohama City University Medical Center
| | - Kiyoshi Hibi
- Division of Cardiology, Yokohama City University Medical Center.
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10
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An automatic entropy method to efficiently mask histology whole-slide images. Sci Rep 2023; 13:4321. [PMID: 36922520 PMCID: PMC10017682 DOI: 10.1038/s41598-023-29638-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 02/08/2023] [Indexed: 03/18/2023] Open
Abstract
Tissue segmentation of histology whole-slide images (WSI) remains a critical task in automated digital pathology workflows for both accurate disease diagnosis and deep phenotyping for research purposes. This is especially challenging when the tissue structure of biospecimens is relatively porous and heterogeneous, such as for atherosclerotic plaques. In this study, we developed a unique approach called 'EntropyMasker' based on image entropy to tackle the fore- and background segmentation (masking) task in histology WSI. We evaluated our method on 97 high-resolution WSI of human carotid atherosclerotic plaques in the Athero-Express Biobank Study, constituting hematoxylin and eosin and 8 other staining types. Using multiple benchmarking metrics, we compared our method with four widely used segmentation methods: Otsu's method, Adaptive mean, Adaptive Gaussian and slideMask and observed that our method had the highest sensitivity and Jaccard similarity index. We envision EntropyMasker to fill an important gap in WSI preprocessing, machine learning image analysis pipelines, and enable disease phenotyping beyond the field of atherosclerosis.
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11
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Pamulapati V, Cuda CM, Smith TL, Jung J, Xiong L, Swaminathan S, Ho KJ. Inflammatory Cell Dynamics after Murine Femoral Artery Wire Injury: A Multi-Parameter Flow Cytometry-Based Analysis. Cells 2023; 12:689. [PMID: 36899827 PMCID: PMC10000449 DOI: 10.3390/cells12050689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 02/15/2023] [Accepted: 02/17/2023] [Indexed: 02/24/2023] Open
Abstract
An acute inflammatory response following arterial surgery for atherosclerosis, such as balloon angioplasty, stenting, and surgical bypass, is an important driver of neointimal hyperplasia after arterial injury, which leads to recurrent ischemia. However, a comprehensive understanding of the dynamics of the inflammatory infiltrate in the remodeling artery is difficult to attain due to the shortcomings of conventional methods such as immunofluorescence. We developed a 15-parameter flow cytometry method to quantitate leukocytes and 13 leukocyte subtypes in murine arteries at 4 time points after femoral artery wire injury. Live leukocyte numbers peaked at 7 days, which preceded the peak neointimal hyperplasia lesion at 28 days. Neutrophils were the most abundant early infiltrate, followed by monocytes and macrophages. Eosinophils were elevated after 1 day, while natural killer and dendritic cells gradually infiltrated over the first 7 days; all decreased between 7 and 14 days. Lymphocytes began accumulating at 3 days and peaked at 7 days. Immunofluorescence of arterial sections demonstrated similar temporal trends of CD45+ and F4/80+ cells. This method allows for the simultaneous quantitation of multiple leukocyte subtypes from small tissue samples of injured murine arteries and identifies the CD64+Tim4+ macrophage phenotype as being potentially important in the first 7 days post-injury.
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Affiliation(s)
- Vivek Pamulapati
- Division of Vascular Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Carla M. Cuda
- Division of Rheumatology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Tracy L. Smith
- Division of Vascular Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Jonathan Jung
- Division of Vascular Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Liqun Xiong
- Division of Vascular Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Suchitra Swaminathan
- Division of Rheumatology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Karen J. Ho
- Division of Vascular Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
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12
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Yang Y, Shao M, Cheng W, Yao J, Ma L, Wang Y, Wang W. A Pharmacological Review of Tanshinones, Naturally Occurring Monomers from Salvia miltiorrhiza for the Treatment of Cardiovascular Diseases. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2023; 2023:3801908. [PMID: 36793978 PMCID: PMC9925269 DOI: 10.1155/2023/3801908] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 10/23/2022] [Accepted: 11/25/2022] [Indexed: 02/09/2023]
Abstract
Cardiovascular diseases (CVDs) are a set of heart and blood vessel disorders that include coronary heart disease (CHD), rheumatic heart disease, and other conditions. Traditional Chinese Medicine (TCM) has definite effects on CVDs due to its multitarget and multicomponent properties, which are gradually gaining national attention. Tanshinones, the major active chemical compounds extracted from Salvia miltiorrhiza, exhibit beneficial improvement on multiple diseases, especially CVDs. At the level of biological activities, they play significant roles, including anti-inflammation, anti-oxidation, anti-apoptosis and anti-necroptosis, anti-hypertrophy, vasodilation, angiogenesis, combat against proliferation and migration of smooth muscle cells (SMCs), as well as anti-myocardial fibrosis and ventricular remodeling, which are all effective strategies in preventing and treating CVDs. Additionally, at the cellular level, Tanshinones produce marked effects on cardiomyocytes, macrophages, endothelia, SMCs, and fibroblasts in myocardia. In this review, we have summarized a brief overview of the chemical structures and pharmacological effects of Tanshinones as a CVD treatment to expound on different pharmacological properties in various cell types in myocardia.
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Affiliation(s)
- Ye Yang
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
- Key Laboratory of TCM Syndrome and Formula (Beijing University of Chinese Medicine), Ministry of Education, Beijing, China
| | - Mingyan Shao
- Key Laboratory of TCM Syndrome and Formula (Beijing University of Chinese Medicine), Ministry of Education, Beijing, China
- School of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Wenkun Cheng
- Key Laboratory of TCM Syndrome and Formula (Beijing University of Chinese Medicine), Ministry of Education, Beijing, China
- School of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Junkai Yao
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
- Key Laboratory of TCM Syndrome and Formula (Beijing University of Chinese Medicine), Ministry of Education, Beijing, China
| | - Lin Ma
- Key Laboratory of TCM Syndrome and Formula (Beijing University of Chinese Medicine), Ministry of Education, Beijing, China
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China
| | - Yong Wang
- Key Laboratory of TCM Syndrome and Formula (Beijing University of Chinese Medicine), Ministry of Education, Beijing, China
- School of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Wei Wang
- Key Laboratory of TCM Syndrome and Formula (Beijing University of Chinese Medicine), Ministry of Education, Beijing, China
- Guangzhou University of Chinese Medicine, Guangzhou, China
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13
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Yanikoglu A. The Probable Role of Chlamydia pneumoniae Infection in Acute Stroke. Infect Dis (Lond) 2023. [DOI: 10.5772/intechopen.109582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Cardiovascular diseases are the most leading cause of worldwide mortality. According to USA statistics, about 1 of 6 cardiovascular deaths is due to stroke. Stroke is the second most common cause of death and a chief cause of disability due to EU data. Treatment, care providing, rehabilitation costs and with the labor loss, the overall cost in EU due to stroke was estimated about €45 billion in year 2017. Acute stroke due to infectious diseases via several possible mechanisms with various clinical presentations were previously reported in the literature. Chlamydia pneumoniae is an obligate intracellular bacteria and extremely common in adult individuals. Besides it being a major cause of pneumonia in adults, association between atherosclerosis and vascular diseases was demonstrated by several sero-epidemiological studies and by direct detection of organism in atherosclerotic lesions by electron microscopy, immunohistochemistry, polymerase chain reaction. Also, several sero-epidemiological studies have demonstrated a link between Chlamydia pneumoniae infection and acute stroke. In this chapter, we will summarize the data in literature regarding the association between Chlamydia pneumoniae infection and acute stroke and we will try to explain the possible mechanisms that could be responsible in pathophysiology of stroke in these patients.
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14
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Bamford P, Collins N, Boyle A. A State-of-the-Art Review: The Percutaneous Treatment of Highly Calcified Lesions. Heart Lung Circ 2022; 31:1573-1584. [PMID: 36150953 DOI: 10.1016/j.hlc.2022.08.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 04/28/2022] [Accepted: 08/04/2022] [Indexed: 12/27/2022]
Abstract
Coronary artery calcification is prevalent in coronary heart disease with its progression being predictive of future adverse cardiac events. Its presence is considered to be a marker of interventional procedural complexity. Several adjunctive percutaneous coronary intervention tools, such as modifying balloons, atherectomy devices and intravascular lithotripsy, now exist to successfully treat calcified lesions. In this state-of-the-art review, a step-wise progression of strategies is described to modify coronary plaque, from well-recognised techniques to techniques that should only be considered when standard manoeuvres have proven unsuccessful. Technology has advanced greatly over the past few decades and we discuss how future technologies might shape percutaneous intervention.
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Affiliation(s)
- Paul Bamford
- Cardiology Department, John Hunter Hospital, Newcastle, NSW, Australia; Cardiology Department, University of Newcastle, Newcastle, NSW, Australia.
| | - Nicholas Collins
- Cardiology Department, John Hunter Hospital, Newcastle, NSW, Australia; Cardiology Department, University of Newcastle, Newcastle, NSW, Australia
| | - Andrew Boyle
- Cardiology Department, John Hunter Hospital, Newcastle, NSW, Australia; Cardiology Department, University of Newcastle, Newcastle, NSW, Australia
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15
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Usami K, Watabe H, Hoshi T, Sakai S, Hiraya D, Sato A, Ieda M. Impact of coronary plaque characteristics on periprocedural myocardial injury in elective percutaneous coronary intervention. Eur Radiol 2022; 33:3020-3028. [PMID: 36441216 DOI: 10.1007/s00330-022-09288-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 10/06/2022] [Accepted: 11/06/2022] [Indexed: 11/29/2022]
Abstract
OBJECTIVES To investigate the relationship between periprocedural myocardial injury (PMI) and plaque characteristics detected by multidetector computed tomography (MDCT) and cardiac magnetic resonance imaging (CMR). MATERIALS AND METHODS This observational retrospective study, between July 2012 and October 2019, included chronic coronary syndrome patients undergoing elective percutaneous coronary intervention (PCI) after MDCT and CMR. High-intensity plaque (HIP) on non-contrast T1-weighted imaging was defined as a coronary plaque-to-myocardium signal intensity ratio of ≥ 1.4. High-risk plaque (HRP) in MDCT displayed ≥ 2 features: positive remodeling, low-attenuation plaque, spotty calcification, and napkin-ring sign. PMI was defined as an increase in cardiac troponin T levels > 5 times the upper normal limit at 24 h after PCI. RESULTS Ninety-five target lesions in 76 patients (mean age ± standard deviation, 67 years ± 9; 62 males [82%]) were included. Twenty-one patients (24 lesions) were assigned to the PMI group, while 55 patients (71 lesions) to the non-PMI group. Presence of HRP characteristics on MDCT and HIP on CMR was significantly higher in the PMI group. Multivariate logistic regression analysis showed that HRP in MDCT and HIP in CMR were significant independent predictors of PMI. Target lesions with HRP on MDCT and HIP on CMR were significantly more likely to develop PMI. In 141 plaques with ≥ 50% stenosis (76 patients), patients with PMI had significantly more frequent HRP in MDCT and HIP in CMR in target and non-target lesions. CONCLUSIONS MDCT and CMR can play an important role in the detection of high-risk lesions for PMI following elective PCI. KEY POINTS • Multivariate logistic regression analysis showed that high-risk plaque on MDCT and high-intensity plaque on MRI were significant independent predictors of periprocedural myocardial injury (PMI). • Target lesions with high-risk plaque on MDCT and high-intensity plaque on CMR were significantly more likely to develop PMI. • In 141 plaques with ≥ 50% stenosis, patients with PMI were significantly more likely to have high-risk plaques on MDCT and high-intensity plaque on CMR in target and non-target lesions.
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Affiliation(s)
- Kyohei Usami
- Department of Cardiology, National Hospital Organization Mito Medical Center, Mito, Japan
| | - Hiroaki Watabe
- Cardiovascular Division, Faculty of Medicine, University of Tsukuba, 2-1-1 Amakubo, Tsukuba, Ibaraki, 305-8576, Japan.
| | - Tomoya Hoshi
- Cardiovascular Division, Faculty of Medicine, University of Tsukuba, 2-1-1 Amakubo, Tsukuba, Ibaraki, 305-8576, Japan
| | - Shunsuke Sakai
- Cardiovascular Division, Faculty of Medicine, University of Tsukuba, 2-1-1 Amakubo, Tsukuba, Ibaraki, 305-8576, Japan
| | - Daigo Hiraya
- Cardiovascular Division, Faculty of Medicine, University of Tsukuba, 2-1-1 Amakubo, Tsukuba, Ibaraki, 305-8576, Japan
| | - Akira Sato
- Department of Cardiology, University of Yamanashi, Yamanashi, Japan
| | - Masaki Ieda
- Cardiovascular Division, Faculty of Medicine, University of Tsukuba, 2-1-1 Amakubo, Tsukuba, Ibaraki, 305-8576, Japan
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16
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Phyo WSY, Shirakawa M, Yamada K, Kuwahara S, Yoshimura S. Characteristics of Calcification and Their Association with Carotid Plaque Vulnerability. World Neurosurg 2022; 167:e1017-e1024. [PMID: 36058484 DOI: 10.1016/j.wneu.2022.08.127] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Accepted: 08/28/2022] [Indexed: 11/16/2022]
Abstract
BACKGROUND Carotid plaque vulnerability is one of the important features for evaluating the risk of subsequent ischemic stroke. Although magnetic resonance imaging (MRI) is the gold standard modality for evaluating plaque vulnerability, some patients cannot undergo MRI because of physical or economic issues. Computed tomography (CT) is more readily available. The purpose of this study was to establish a new category of calcification on CT and to assess its usefulness for detecting vulnerable plaque. MATERIALS AND METHODS We retrospectively evaluated consecutive patients who underwent plaque imaging using CT and MRI before carotid revascularization at our institute. Calcifications were classified into 4 types according to the new calcium classification. The patients were divided into 2 groups, the double layer sign (DLS)-positive group and the DLS-negative group. Signal intensity ratio (SIR) of carotid plaque was measured on MRI for evaluating plaque vulnerability and compared between type of calcification and SIR. RESULTS Among the 132 patients evaluated, 50 patients (62.5%) in DLS positive group and 16 patients (30.8%) in DLS negative group had calcification with vulnerable plaque (SIR > 1.47) (P < 0.01). Substantial interobserver agreement of type of calcification was observed (kappa, 0.79; P < 0.01). Multivariate analysis showed that DLS (odds ratio 3.03; 95% confidence interval 1.35-6.8; P < 0.01) and male sex (odds ratio 3.15; 95% confidence interval 1.02-9.68; P = 0.04) were independent predictors of vulnerable plaque. CONCLUSIONS DLS in our new classification of calcification on CT reliably detects vulnerable plaque and could thus be used in patients who cannot undergo MRI.
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Affiliation(s)
- Wint Shwe Yee Phyo
- Department of Neurosurgery, Hyogo College of Medicine, Nishinomiya, Hyogo, Japan
| | - Manabu Shirakawa
- Department of Neurosurgery, Hyogo College of Medicine, Nishinomiya, Hyogo, Japan
| | - Kiyofumi Yamada
- Department of Neurosurgery, Hyogo College of Medicine, Nishinomiya, Hyogo, Japan
| | - Shuntaro Kuwahara
- Department of Neurosurgery, Hyogo College of Medicine, Nishinomiya, Hyogo, Japan
| | - Shinichi Yoshimura
- Department of Neurosurgery, Hyogo College of Medicine, Nishinomiya, Hyogo, Japan.
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17
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Hu MK, Yuan M, James S, Lee HP, Abdul F, Yousif A, Hassan A, Khan J, Connolly D, Sharma V. Positive remodelling of coronary arteries on computed tomography coronary angiogram: an observational study. ASIAINTERVENTION 2022; 8:110-115. [PMID: 36483287 PMCID: PMC9706778 DOI: 10.4244/aij-d-21-00045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 04/12/2022] [Indexed: 06/17/2023]
Abstract
BACKGROUND Coronary artery disease (CAD) due to atherosclerosis is projected to be the leading cause of morbidity and mortality worldwide until 2040. CAD affects approximately 2.6 million people in the United Kingdom (UK), and 1 in 4 of them do not experience any symptoms. AIMS The aim of this study was to assess the characteristics and outcomes of patients with plaque features of positive remodelling (PR) on their computed tomography coronary angiogram (CTCA) images. METHODS Patients who were referred for CTCA from June 2018 to January 2020 were retrospectively identified. Patients underwent prospective, gated 128-slice dual-source CTCA. Patients with PR were compared to those without PR for demographics and outcomes. RESULTS A total of 861 patients were included in our study; 241 (28%) had PR, and 620 (72%) had no PR. Patients with PR were older (PR: 63.9±11.0 years vs no PR: 62.1±11.2 years; p=0.04), more likely to be male (PR: 65.6% vs no PR: 55.8%; p=0.01) and underwent coronary angiography more frequently (PR: 25.7% vs no PR: 14.4%; p<0.01). There were also significant increases in subsequent acute coronary syndrome (ACS) events (PR: 2.5% vs no PR: 0.0%; p<0.01) and the need for revascularisation therapy (PR: 15.4% vs no PR: 7.8%; p<0.01) in patients with PR despite being on statins (not a high dose). There was no difference in all-cause mortality. CONCLUSIONS Detection of PR on CTCA is a reliable prognostic indicator of future cardiovascular events and presents a valuable opportunity for initiation of aggressive primary prevention therapy.
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Affiliation(s)
- May Khei Hu
- Department of Cardiology, Birmingham City Hospital, Birmingham, United Kingdom
| | - Mengshi Yuan
- Department of Cardiology, Birmingham City Hospital, Birmingham, United Kingdom
| | - Sunil James
- Department of Cardiology, Birmingham City Hospital, Birmingham, United Kingdom
| | - Hui Ping Lee
- Department of Cardiology, Birmingham City Hospital, Birmingham, United Kingdom
| | - Fairoz Abdul
- Department of Cardiology, Birmingham City Hospital, Birmingham, United Kingdom
| | - Abdel Yousif
- Department of Cardiology, Birmingham City Hospital, Birmingham, United Kingdom
| | - Ahmed Hassan
- Department of Cardiology, Birmingham City Hospital, Birmingham, United Kingdom
| | - Jawad Khan
- Department of Cardiology, Birmingham City Hospital, Birmingham, United Kingdom
| | - Derek Connolly
- Department of Cardiology, Birmingham City Hospital, Birmingham, United Kingdom
- Institute of Cardiovascular Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Vinoda Sharma
- Department of Cardiology, Birmingham City Hospital, Birmingham, United Kingdom
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18
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Aimo A, Chiappino S, Paolicchi A, Della Latta D, Martini N, Clemente A, Musetti V, Masotti S, Panichella G, Piagneri V, Storti S, Monteleone A, Passino C, Chiappino D, Franzini M, Emdin M. Big gamma-glutamyltransferase is associated with epicardial fat volume and cardiovascular outcome in the general population. Eur J Prev Cardiol 2022; 29:1510-1518. [PMID: 34928344 DOI: 10.1093/eurjpc/zwab215] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 08/08/2021] [Accepted: 12/01/2021] [Indexed: 01/06/2023]
Abstract
AIMS Gamma-glutamyltransferase (GGT) has been recognized as a cardiovascular risk factor, and its highest molecular weight fraction [big GGT (b-GGT)] is found in vulnerable atherosclerotic plaques. We explored the relationship between b-GGT, computed tomography findings, and long-term outcomes in the general population. METHODS AND RESULTS Between May 2010 and October 2011, subjects aged 45-75 years living in a Tuscan city and without known cardiac disease were screened. The primary endpoint was a composite of cardiovascular death or acute coronary syndrome requiring urgent coronary revascularization. Gamma-glutamyltransferase fractions were available in 898 subjects [median age 65 years (25th-75th percentile 55-70), 46% men]. Median plasma GGT was 20 IU (15-29), and b-GGT was 2.28 (1.28-4.17). Coronary artery calcium (CAC) score values were 0 (0-60), and the volume of pro-atherogenic epicardial fat was 155 mL (114-204). In a model including age, sex, low-density lipoprotein (LDL) cholesterol, current or previous smoking status, hypertension, diabetes, obesity, b-GGT independently predicted epicardial fat volume (EFV) (r = 0.162, P < 0.001), but not CAC (P = 0.198). Over a 10.3-year follow-up (9.6-10.8), 27 subjects (3%) experienced the primary endpoint. We evaluated couples of variables including b-GGT and a cardiovascular risk factor, CAC or EFV. Big GGT yielded independent prognostic significance from age, LDL cholesterol, current or previous smoking status, hypertension, diabetes, obesity, but not CAC or EFV. Conversely, GGT predicted the primary endpoint even independently from CAC and EFV. CONCLUSION Big GGT seemed at least as predictive as the commonly available GGT assay; therefore, the need for b-GGT rather than GGT measurement should be carefully examined.
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Affiliation(s)
- Alberto Aimo
- Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, 56124 Pisa, Italy
- Fondazione Toscana Gabriele Monasterio, Pisa and Massa, Italy
| | - Sara Chiappino
- Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, 56124 Pisa, Italy
- Fondazione Toscana Gabriele Monasterio, Pisa and Massa, Italy
| | - Aldo Paolicchi
- Department of Translational Research on New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| | | | - Nicola Martini
- Fondazione Toscana Gabriele Monasterio, Pisa and Massa, Italy
| | | | - Veronica Musetti
- Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, 56124 Pisa, Italy
| | - Silvia Masotti
- Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, 56124 Pisa, Italy
| | - Giorgia Panichella
- Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, 56124 Pisa, Italy
| | | | - Simona Storti
- Fondazione Toscana Gabriele Monasterio, Pisa and Massa, Italy
| | | | - Claudio Passino
- Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, 56124 Pisa, Italy
- Fondazione Toscana Gabriele Monasterio, Pisa and Massa, Italy
| | - Dante Chiappino
- Fondazione Toscana Gabriele Monasterio, Pisa and Massa, Italy
| | - Maria Franzini
- Department of Translational Research on New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - Michele Emdin
- Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, 56124 Pisa, Italy
- Fondazione Toscana Gabriele Monasterio, Pisa and Massa, Italy
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19
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Sakai Y, Lehman VT, Eisenmenger LB, Obusez EC, Kharal GA, Xiao J, Wang GJ, Fan Z, Cucchiara BL, Song JW. Vessel wall MR imaging of aortic arch, cervical carotid and intracranial arteries in patients with embolic stroke of undetermined source: A narrative review. Front Neurol 2022; 13:968390. [PMID: 35968273 PMCID: PMC9366886 DOI: 10.3389/fneur.2022.968390] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 07/01/2022] [Indexed: 11/13/2022] Open
Abstract
Despite advancements in multi-modal imaging techniques, a substantial portion of ischemic stroke patients today remain without a diagnosed etiology after conventional workup. Based on existing diagnostic criteria, these ischemic stroke patients are subcategorized into having cryptogenic stroke (CS) or embolic stroke of undetermined source (ESUS). There is growing evidence that in these patients, non-cardiogenic embolic sources, in particular non-stenosing atherosclerotic plaque, may have significant contributory roles in their ischemic strokes. Recent advancements in vessel wall MRI (VW-MRI) have enabled imaging of vessel walls beyond the degree of luminal stenosis, and allows further characterization of atherosclerotic plaque components. Using this imaging technique, we are able to identify potential imaging biomarkers of vulnerable atherosclerotic plaques such as intraplaque hemorrhage, lipid rich necrotic core, and thin or ruptured fibrous caps. This review focuses on the existing evidence on the advantages of utilizing VW-MRI in ischemic stroke patients to identify culprit plaques in key anatomical areas, namely the cervical carotid arteries, intracranial arteries, and the aortic arch. For each anatomical area, the literature on potential imaging biomarkers of vulnerable plaques on VW-MRI as well as the VW-MRI literature in ESUS and CS patients are reviewed. Future directions on further elucidating ESUS and CS by the use of VW-MRI as well as exciting emerging techniques are reviewed.
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Affiliation(s)
- Yu Sakai
- Department of Radiology, Hospital of the University of Pennsylvania, Philadelphia, PA, United States
| | - Vance T. Lehman
- Department of Radiology, The Mayo Clinic, Rochester, MN, United States
| | - Laura B. Eisenmenger
- Department of Radiology, University of Wisconsin-Madison, Madison, WI, United States
| | | | - G. Abbas Kharal
- Department of Neurology, Cerebrovascular Center, Neurological Institute, Cleveland, OH, United States
| | - Jiayu Xiao
- Department of Radiology, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
| | - Grace J. Wang
- Department of Vascular Surgery and Endovascular Therapy, Hospital of the University of Pennsylvania, Philadelphia, PA, United States
| | - Zhaoyang Fan
- Department of Radiology, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
| | - Brett L. Cucchiara
- Department of Neurology, Hospital of the University of Pennsylvania, Philadelphia, PA, United States
| | - Jae W. Song
- Department of Radiology, Hospital of the University of Pennsylvania, Philadelphia, PA, United States
- *Correspondence: Jae W. Song
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20
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Petrossian G, Ozdemir D, Galougahi KK, Scheiner J, Thomas SV, Shlofmitz R, Shlofmitz E, Jeremias A, Ali ZA. Role of Intracoronary Imaging in Acute Coronary Syndromes. US CARDIOLOGY REVIEW 2022. [DOI: 10.15420/usc.2022.03] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Intravascular imaging with optical coherence tomography (OCT) and intravascular ultrasound provides superior visualization of the culprit plaques for acute coronary syndromes (ACS) compared with coronary angiography. Combined with angiography, intravascular imaging can be used to instigate ‘precision therapy’ for ACS. Post-mortem histopathology identified atherothrombosis at the exposed surface of a ruptured fibrous cap as the main cause of ACS. Further histopathological studies identified intact fibrous caps and calcified nodules as other culprit lesions for ACS. These plaque types were subsequently also identified on intravascular imaging, particularly with the high-resolution OCT. The less-common non-atherothrombotic causes of ACS are coronary artery spasm, coronary artery dissection, and coronary embolism. In this review, the authors provide an overview of clinical studies using intravascular imaging with OCT in the diagnosis and management of ACS.
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Affiliation(s)
| | - Denizhan Ozdemir
- Division of Cardiology, Columbia University Irving Medical Center/NewYork-Presbyterian Hospital, New York, NY
| | - Keyvan Karimi Galougahi
- Department of Cardiology, Royal Prince Alfred Hospital, Sydney, Australia; Sydney Medical School, Faculty of Medicine and Health, University of Sydney, Sydney, Australia; Heart Research Institute, Sydney, Australia; DeMatteis Cardiovascular Institute, St Francis Hospital – The Heart Center, Roslyn, NY
| | - Jonathan Scheiner
- DeMatteis Cardiovascular Institute, St Francis Hospital – The Heart Center, Roslyn, NY
| | - Susan V Thomas
- DeMatteis Cardiovascular Institute, St Francis Hospital – The Heart Center, Roslyn, NY
| | - Richard Shlofmitz
- DeMatteis Cardiovascular Institute, St Francis Hospital – The Heart Center, Roslyn, NY
| | - Evan Shlofmitz
- DeMatteis Cardiovascular Institute, St Francis Hospital – The Heart Center, Roslyn, NY
| | - Allen Jeremias
- DeMatteis Cardiovascular Institute, St Francis Hospital – The Heart Center, Roslyn, NY; Clinical Trials Center, Cardiovascular Research Foundation, New York, NY
| | - Ziad A Ali
- DeMatteis Cardiovascular Institute, St Francis Hospital – The Heart Center, Roslyn, NY; Clinical Trials Center, Cardiovascular Research Foundation, New York, NY
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21
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Suri JS, Bhagawati M, Paul S, Protogerou AD, Sfikakis PP, Kitas GD, Khanna NN, Ruzsa Z, Sharma AM, Saxena S, Faa G, Laird JR, Johri AM, Kalra MK, Paraskevas KI, Saba L. A Powerful Paradigm for Cardiovascular Risk Stratification Using Multiclass, Multi-Label, and Ensemble-Based Machine Learning Paradigms: A Narrative Review. Diagnostics (Basel) 2022; 12:diagnostics12030722. [PMID: 35328275 PMCID: PMC8947682 DOI: 10.3390/diagnostics12030722] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 03/10/2022] [Accepted: 03/13/2022] [Indexed: 12/16/2022] Open
Abstract
Background and Motivation: Cardiovascular disease (CVD) causes the highest mortality globally. With escalating healthcare costs, early non-invasive CVD risk assessment is vital. Conventional methods have shown poor performance compared to more recent and fast-evolving Artificial Intelligence (AI) methods. The proposed study reviews the three most recent paradigms for CVD risk assessment, namely multiclass, multi-label, and ensemble-based methods in (i) office-based and (ii) stress-test laboratories. Methods: A total of 265 CVD-based studies were selected using the preferred reporting items for systematic reviews and meta-analyses (PRISMA) model. Due to its popularity and recent development, the study analyzed the above three paradigms using machine learning (ML) frameworks. We review comprehensively these three methods using attributes, such as architecture, applications, pro-and-cons, scientific validation, clinical evaluation, and AI risk-of-bias (RoB) in the CVD framework. These ML techniques were then extended under mobile and cloud-based infrastructure. Findings: Most popular biomarkers used were office-based, laboratory-based, image-based phenotypes, and medication usage. Surrogate carotid scanning for coronary artery risk prediction had shown promising results. Ground truth (GT) selection for AI-based training along with scientific and clinical validation is very important for CVD stratification to avoid RoB. It was observed that the most popular classification paradigm is multiclass followed by the ensemble, and multi-label. The use of deep learning techniques in CVD risk stratification is in a very early stage of development. Mobile and cloud-based AI technologies are more likely to be the future. Conclusions: AI-based methods for CVD risk assessment are most promising and successful. Choice of GT is most vital in AI-based models to prevent the RoB. The amalgamation of image-based strategies with conventional risk factors provides the highest stability when using the three CVD paradigms in non-cloud and cloud-based frameworks.
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Affiliation(s)
- Jasjit S. Suri
- Stroke Diagnostic and Monitoring Division, AtheroPoint™, Roseville, CA 95661, USA
- Correspondence: ; Tel.: +1-(916)-749-5628
| | - Mrinalini Bhagawati
- Department of Biomedical Engineering, North-Eastern Hill University, Shillong 793022, India; (M.B.); (S.P.)
| | - Sudip Paul
- Department of Biomedical Engineering, North-Eastern Hill University, Shillong 793022, India; (M.B.); (S.P.)
| | - Athanasios D. Protogerou
- Research Unit Clinic, Laboratory of Pathophysiology, Department of Cardiovascular Prevention, National and Kapodistrian University of Athens, 11527 Athens, Greece;
| | - Petros P. Sfikakis
- Rheumatology Unit, National Kapodistrian University of Athens, 11527 Athens, Greece;
| | - George D. Kitas
- Arthritis Research UK Centre for Epidemiology, Manchester University, Manchester 46962, UK;
| | - Narendra N. Khanna
- Department of Cardiology, Indraprastha APOLLO Hospitals, New Delhi 110020, India;
| | - Zoltan Ruzsa
- Department of Internal Medicines, Invasive Cardiology Division, University of Szeged, 6720 Szeged, Hungary;
| | - Aditya M. Sharma
- Division of Cardiovascular Medicine, University of Virginia, Charlottesville, VA 22903, USA;
| | - Sanjay Saxena
- Department of CSE, International Institute of Information Technology, Bhubaneswar 751003, India;
| | - Gavino Faa
- Department of Pathology, A.O.U., di Cagliari-Polo di Monserrato s.s., 09045 Cagliari, Italy;
| | - John R. Laird
- Cardiology Department, St. Helena Hospital, St. Helena, CA 94574, USA;
| | - Amer M. Johri
- Department of Medicine, Division of Cardiology, Queen’s University, Kingston, ON K7L 3N6, Canada;
| | - Manudeep K. Kalra
- Department of Radiology, Massachusetts General Hospital, Boston, MA 02114, USA;
| | - Kosmas I. Paraskevas
- Department of Vascular Surgery, Central Clinic of Athens, N. Iraklio, 14122 Athens, Greece;
| | - Luca Saba
- Department of Radiology, A.O.U., di Cagliari-Polo di Monserrato s.s., 09045 Cagliari, Italy;
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22
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Detection of Vulnerable Coronary Plaques Using Invasive and Non-Invasive Imaging Modalities. J Clin Med 2022; 11:jcm11051361. [PMID: 35268451 PMCID: PMC8911129 DOI: 10.3390/jcm11051361] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 02/11/2022] [Accepted: 02/25/2022] [Indexed: 11/16/2022] Open
Abstract
Acute coronary syndrome (ACS) mostly arises from so-called vulnerable coronary plaques, particularly prone for rupture. Vulnerable plaques comprise a specific type of plaque, called the thin-cap fibroatheroma (TFCA). A TCFA is characterized by a large lipid-rich necrotic core, a thin fibrous cap, inflammation, neovascularization, intraplaque hemorrhage, microcalcifications or spotty calcifications, and positive remodeling. Vulnerable plaques are often not visible during coronary angiography. However, different plaque features can be visualized with the use of intracoronary imaging techniques, such as intravascular ultrasound (IVUS), potentially with the addition of near-infrared spectroscopy (NIRS), or optical coherence tomography (OCT). Non-invasive imaging techniques, such as computed tomography coronary angiography (CTCA), cardiovascular magnetic resonance (CMR) imaging, and nuclear imaging, can be used as an alternative for these invasive imaging techniques. These invasive and non-invasive imaging modalities can be implemented for screening to guide primary or secondary prevention therapies, leading to a more patient-tailored diagnostic and treatment strategy. Systemic pharmaceutical treatment with lipid-lowering or anti-inflammatory medication leads to plaque stabilization and reduction of cardiovascular events. Additionally, ongoing studies are investigating whether modification of vulnerable plaque features with local invasive treatment options leads to plaque stabilization and subsequent cardiovascular risk reduction.
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Abstract
PURPOSE OF REVIEW The importance of cardiovascular disease (CVD) in women has long been underestimated. Therefore, we need to understand the impact of sex differences on CVD. RECENT FINDINGS Traditional risk factors contribute to coronary artery disease (CAD) differently in women and men. There are female-specific risk factors and comorbid conditions that affect the risk of CAD. Plaque erosion is frequently seen in younger women who smoke, while plaque rupture is common in older women and men who have elevated blood cholesterol. Coronary artery calcification is also different in both sexes. Thus, coronary artery calcification score-based risk stratification in women is challenging. A deeper understanding of the sex differences in the risk factors and plaque morphology of coronary atherosclerosis may lead to improved outcomes of CVD in women.
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24
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Chow E, Diep B, Getman T, Kilani A, Khiatah B, Jazayeri S, Mansour C. Clinical presentation and management of myocardial infarction with nonobstructive coronary arteries (MINOCA): A literature review. Heliyon 2021; 7:e08362. [PMID: 34816048 PMCID: PMC8591493 DOI: 10.1016/j.heliyon.2021.e08362] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 09/17/2021] [Accepted: 11/08/2021] [Indexed: 11/26/2022] Open
Abstract
Myocardial Infarction with Nonobstructive Coronary Arteries (MINOCA), as the name implies, is an acute myocardial infarction (MI) in the absence of significant coronary artery obstruction. Diagnosis and management of such cases have been challenging. There are many etiologies of MINOCA including coronary artery spasm, coronary microvascular dysfunction, plaque disruption, spontaneous coronary thrombosis or emboli, spontaneous coronary artery dissection, or cardiomyopathies. In this paper, the pathophysiology, diagnostic work-up, and clinical management for each subtype are described, and an overarching approach on how to evaluate and manage a patient presenting with MINOCA.
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Affiliation(s)
- Erica Chow
- Western University of Health Sciences, Pomona, CA 91766, USA.,Community Memorial Hospital, 147 N Brent St, Ventura CA 93003, USA
| | - Brian Diep
- Western University of Health Sciences, Pomona, CA 91766, USA.,Community Memorial Hospital, 147 N Brent St, Ventura CA 93003, USA
| | - Tatiana Getman
- Western University of Health Sciences, Pomona, CA 91766, USA.,Community Memorial Hospital, 147 N Brent St, Ventura CA 93003, USA
| | - Amir Kilani
- Western University of Health Sciences, Pomona, CA 91766, USA.,Community Memorial Hospital, 147 N Brent St, Ventura CA 93003, USA
| | - Bashar Khiatah
- Department of Internal Medicine, Community Memorial Hospital, 147 N Brent St, Ventura CA 93003, USA
| | - Sam Jazayeri
- Department of Internal Medicine, Community Memorial Hospital, 147 N Brent St, Ventura CA 93003, USA
| | - Craig Mansour
- Cardiology Associates Medical Group, 168 North Brent Street Suite 503, Ventura, CA 93003, USA
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25
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Pro-Inflammatory Serum Amyloid a Stimulates Renal Dysfunction and Enhances Atherosclerosis in Apo E-Deficient Mice. Int J Mol Sci 2021; 22:ijms222212582. [PMID: 34830462 PMCID: PMC8623330 DOI: 10.3390/ijms222212582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 11/13/2021] [Accepted: 11/16/2021] [Indexed: 11/16/2022] Open
Abstract
Acute serum amyloid A (SAA) is an apolipoprotein that mediates pro-inflammatory and pro-atherogenic pathways. SAA-mediated signalling is diverse and includes canonical and acute immunoregulatory pathways in a range of cell types and organs. This study aimed to further elucidate the roles for SAA in the pathogenesis of vascular and renal dysfunction. Two groups of male ApoE-deficient mice were administered SAA (100 µL, 120 µg/mL) or vehicle control (100 µL PBS) and monitored for 4 or 16 weeks after SAA treatment; tissue was harvested for biochemical and histological analyses at each time point. Under these conditions, SAA administration induced crosstalk between NF-κB and Nrf2 transcriptional factors, leading to downstream induction of pro-inflammatory mediators and antioxidant response elements 4 weeks after SAA administration, respectively. SAA treatment stimulated an upregulation of renal IFN-γ with a concomitant increase in renal levels of p38 MAPK and matrix metalloproteinase (MMP) activities, which is linked to tissue fibrosis. In the kidney of SAA-treated mice, the immunolocalisation of inducible nitric oxide synthase (iNOS) was markedly increased, and this was localised to the parietal epithelial cells lining Bowman’s space within glomeruli, which led to progressive renal fibrosis. Assessment of aortic root lesion at the study endpoint revealed accelerated atherosclerosis formation; animals treated with SAA also showed evidence of a thinned fibrous cap as judged by diffuse collagen staining. Together, this suggests that SAA elicits early renal dysfunction through promoting the IFN-γ-iNOS-p38 MAPK axis that manifests as the fibrosis of renal tissue and enhanced cardiovascular disease.
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26
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Kadry K, Olender ML, Marlevi D, Edelman ER, Nezami FR. A platform for high-fidelity patient-specific structural modelling of atherosclerotic arteries: from intravascular imaging to three-dimensional stress distributions. J R Soc Interface 2021; 18:20210436. [PMID: 34583562 DOI: 10.1098/rsif.2021.0436] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
The pathophysiology of atherosclerotic lesions, including plaque rupture triggered by mechanical failure of the vessel wall, depends directly on the plaque morphology-modulated mechanical response. The complex interplay between lesion morphology and structural behaviour can be studied with high-fidelity computational modelling. However, construction of three-dimensional (3D) and heterogeneous models is challenging, with most previous work focusing on two-dimensional geometries or on single-material lesion compositions. Addressing these limitations, we here present a semi-automatic computational platform, leveraging clinical optical coherence tomography images to effectively reconstruct a 3D patient-specific multi-material model of atherosclerotic plaques, for which the mechanical response is obtained by structural finite-element simulations. To demonstrate the importance of including multi-material plaque components when recovering the mechanical response, a computational case study was conducted in which systematic variation of the intraplaque lipid and calcium was performed. The study demonstrated that the inclusion of various tissue components greatly affected the lesion mechanical response, illustrating the importance of multi-material formulations. This platform accordingly provides a viable foundation for studying how plaque micro-morphology affects plaque mechanical response, allowing for patient-specific assessments and extension into clinically relevant patient cohorts.
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Affiliation(s)
- Karim Kadry
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA, USA.,Laboratory of Hemodynamics and Cardiovascular Technology, Swiss Federal Institute of Technology, MED 3.2922, 1015 Lausanne, Switzerland
| | - Max L Olender
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - David Marlevi
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Elazer R Edelman
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA, USA.,Cardiovascular Division, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Farhad R Nezami
- Thoracic and Cardiac Surgery Division, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
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27
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Waring OJ, Skenteris NT, Biessen EAL, Donners MMPC. Two-faced Janus: The dual role of macrophages in atherosclerotic calcification. Cardiovasc Res 2021; 118:2768-2777. [PMID: 34550346 PMCID: PMC9586561 DOI: 10.1093/cvr/cvab301] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 09/20/2021] [Indexed: 12/19/2022] Open
Abstract
Calcification is an independent predictor of atherosclerosis-related cardiovascular events. Microcalcification is linked to inflamed, unstable lesions, in comparison to the fibrotic stable plaque phenotype generally associated with advanced calcification. This paradox relates to recognition that calcification presents in a wide spectrum of manifestations that differentially impact plaque’s fate. Macrophages, the main inflammatory cells in atherosclerotic plaque, have a multifaceted role in disease progression. They crucially control the mineralization process, from microcalcification to the osteoid metaplasia of bone-like tissue. It is a bilateral interaction that weighs heavily on the overall plaque fate but remains rather unexplored. This review highlights current knowledge about macrophage phenotypic changes in relation to and interaction with the calcifying environment. On the one hand, macrophage-led inflammation kickstarts microcalcification through a multitude of interlinked mechanisms, which in turn stimulates phenotypic changes in vascular cell types to drive microcalcification. Macrophages may also modulate the expression/activity of calcification inhibitors and inducers, or eliminate hydroxyapatite nucleation points. Contrarily, direct exposure of macrophages to an early calcifying milieu impacts macrophage phenotype, with repercussions for plaque progression and/or stability. Macrophages surrounding macrocalcification deposits show a more reparative phenotype, modulating extracellular matrix, and expressing osteoclast genes. This phenotypic shift favours gradual displacement of the pro-inflammatory hubs; the lipid necrotic core, by macrocalcification. Parallels to bone metabolism may explain many of these changes to macrophage phenotype, with advanced calcification able to show homeostatic osteoid metaplasia. As the targeted treatment of vascular calcification developing in atherosclerosis is thus far severely lacking, it is crucial to better understand its mechanisms of development.
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Affiliation(s)
- O J Waring
- Department of Pathology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, Maastricht, Netherlands
| | - N T Skenteris
- Department of Pathology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, Maastricht, Netherlands.,Cardiovascular Medicine Unit, Department of Medicine, Karolinska Institutet, Solna, Sweden
| | - E A L Biessen
- Department of Pathology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, Maastricht, Netherlands.,Institute for Molecular Cardiovascular Research, RWTH Aachen University, Aachen, German
| | - M M P C Donners
- Department of Pathology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, Maastricht, Netherlands
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28
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Colchicine reduces atherosclerotic plaque vulnerability in rabbits. ATHEROSCLEROSIS PLUS 2021; 45:1-9. [PMID: 36643998 PMCID: PMC9833268 DOI: 10.1016/j.athplu.2021.08.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 08/26/2021] [Accepted: 08/29/2021] [Indexed: 01/18/2023]
Abstract
Background and aims The anti-inflammatory agent colchicine is gaining interest as a treatment for coronary artery disease. However, the effects of colchicine in atherosclerotic animal models are mostly unknown. This study aimed to evaluate colchicine in a rabbit model of atherosclerosis. Methods Twenty-two rabbits were fed a 0.5% cholesterol-enriched diet for 10 weeks and then randomized to receive either oral saline (n=11) or colchicine (350 μg/kg/day; n=11) for 6 weeks, with 0.2% cholesterol-diet during the treatment period. We performed intravascular ultrasound imaging (at start and end of treatment) and histology analyses of the descending thoracic aorta. Leucocyte activation was assessed in vitro on blood samples obtained during treatment. Results Colchicine prevented positive aortic vascular remodelling (p=0.029 vs placebo). This effect was even more marked at high plasma cholesterol level (third quartile of plasma cholesterol, p=0.020). At high cholesterol level, both atherosclerotic plaque and media areas on histomorphology were reduced by colchicine compared to placebo (p=0.031 and p=0.039, respectively). Plaque fibrosis and macrophage area were reduced by colchicine (Masson's trichrome stain: p=0.038; RAM-11: p=0.026). The plaque vulnerability index, assessed by histology, was reduced by colchicine (p=0.040). Elastin/type I collagen ratio in media was significantly higher with colchicine compared to placebo (p=0.013). At a high level of plasma cholesterol, in vitro LPS challenge revealed a decrease in monocyte activation following treatment with colchicine (p<0.001) and no change in the placebo group (p=0.353). Conclusions Colchicine decreases plaque vulnerability with reductions in plaque inflammation, medial fibrosis, outward vascular remodelling and ex vivo monocyte activation.
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29
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Impact of body mass index on duplex parameters of cranial vessels among the Egyptian population. THE EGYPTIAN JOURNAL OF NEUROLOGY, PSYCHIATRY AND NEUROSURGERY 2021. [DOI: 10.1186/s41983-021-00367-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Obesity is a major health problem that affects different vascular systems, including cerebrovascular circulation. Carotid duplex is the best screening tool for early diagnosis of cerebrovascular changes in relation to different risk factors including obesity. The present study aims to evaluate the effect of body mass index on the parameters of extracranial vessels in healthy subjects using vascular duplex ultrasonography.
Results
The intimal medial thickness in the common carotid is found to increase as the body mass index and body weight increase (directly related), with this increase being significant (P-value < 0.05).
Conclusion
These findings indicate that increase in body mass index can adversely affect duplex parameters of the common carotid artery.
Clinical trial registration NCT03252652. Registered August 16th 2017
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30
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Zurek M, Aavik E, Mallick R, Ylä-Herttuala S. Epigenetic Regulation of Vascular Smooth Muscle Cell Phenotype Switching in Atherosclerotic Artery Remodeling: A Mini-Review. Front Genet 2021; 12:719456. [PMID: 34422021 PMCID: PMC8375552 DOI: 10.3389/fgene.2021.719456] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Accepted: 07/19/2021] [Indexed: 12/11/2022] Open
Abstract
Atherosclerosis is a chronic inflammatory disease characterized by extensive remodeling of medium and large-sized arteries. Inward remodeling (=lumen shrinkage) of the vascular walls is the underlying cause for ischemia in target organs. Therefore, inward remodeling can be considered the predominant feature of atherosclerotic pathology. Outward remodeling (=lumen enlargement) is a physiological response compensating for lumen shrinkage caused by neointimal hyperplasia, but as a pathological response to changes in blood flow, outward remodeling leads to substantial arterial wall thinning. Thinned vascular walls are prone to rupture, and subsequent thrombus formation accounts for the majority of acute cardiovascular events. Pathological remodeling is driven by inflammatory cells which induce vascular smooth muscle cells to switch from quiescent to a proliferative and migratory phenotype. After decades of intensive research, the molecular mechanisms of arterial remodeling are starting to unfold. In this mini-review, we summarize the current knowledge of the epigenetic and transcriptional regulation of vascular smooth muscle cell phenotype switching from the contractile to the synthetic phenotype involved in arterial remodeling and discuss potential therapeutic options.
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Affiliation(s)
- Michelle Zurek
- A. I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Kuopio, Finland
| | - Einari Aavik
- A. I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Kuopio, Finland
| | - Rahul Mallick
- A. I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Kuopio, Finland
| | - Seppo Ylä-Herttuala
- A. I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Kuopio, Finland
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31
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Darmoch F, Ullah W, Al-Khadra Y, Sattar Y, Pacha HM, Zghouzi M, Soud M, Bagur R, Naidu SS, Goldsweig AM, Mamas M, Brilakis ES, Alraies MC. Characteristics and hospital outcomes of coronary atherectomy within the United States: a multivariate and propensity-score matched analysis. Expert Rev Cardiovasc Ther 2021; 19:865-870. [PMID: 34330193 DOI: 10.1080/14779072.2021.1963233] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
BACKGROUND Suboptimal stent delivery and deployment in calcified coronary lesions are associated with a poor clinical outcome. METHODS Using the National Inpatient Sample database, we identified patients undergoing percutaneous coronary intervention (PCI). Comparison between procedural and hospital outcomes between patients who underwent atherectomy and those who did not. RESULTS A total of 2,035,039 patients underwent PCI, of which 50,095 (2.4%) underwent lesion modification using atherectomy. After adjustment for baseline differences, patients who underwent atherectomy were found to have higher rates of in-hospital mortality (3.3% vs 2.2% adjusted Odds Ratio, aOR, 1.39; 95% confidence interval [CI], 1.31-1.46, P < 0.001), coronary artery dissection (1.7% vs 1.1%, aOR, 1.56; 95%, 1.45-1.67, P < 0.001) vascular complications (1.6% vs 1.0%, aOR, 1.52; 95%, 1.42-1.64, P < 0.001), major bleeding (6.3% vs 4.7%, aOR, 1.24; 95%, 1.18-1.28, P < 0.001), and acute kidney injury (AKI) (10.9%vs 9.1%, aOR, 1.07; 95%, 1.04-1.11, P < 0.001) when compared with non-atherectomy patients. Concomitant intravascular ultrasound (IVUS) imaging improved mortality, while other complication rates were not affected by imaging. CONCLUSION Coronary atherectomy was performed in patients with multiple comorbidities and was associated with higher in-hospital mortality and complications than the non-atherectomy group.
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Affiliation(s)
- Fahed Darmoch
- Department of Cardiology, University of Massachusetts Medical School, Worcester, MA, USA
| | - Waqas Ullah
- Department of Internal Medicine, Abington Jefferson Health, Abington, PA, USA
| | - Yasser Al-Khadra
- Department of Internal Medicine, Cleveland Clinic Foundation, Cleveland, Ohio, USA
| | - Yasar Sattar
- Department of Internal Medicine, Icahn School of Medicine at Mount Sinai Elmhurst Hospital New York, USA
| | - Homam Moussa Pacha
- Department ofCardiology, University of Texas Health Science Center, Houston, Texas, USA
| | - Mohamed Zghouzi
- Detroit Medical Center, Heart Hospital, Detroit, Michigan, USA
| | - Mohamad Soud
- Department of Cardiology, Rutgers New Jersey Medical School, Newark, New Jersey, USA
| | - Rodrigo Bagur
- Department of Epidemiology and Biostatistics, Schulich School of Medicine & Dentistry Western University, London, Ontario, Canada
| | - Srihari S Naidu
- Department of Cardiology, Westchester Medical Center, Valhalla, NY, USA
| | - Andrew M Goldsweig
- Department of Cardiology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Mamas Mamas
- Department of Cardiology, Keele Cardiovascular Research Group, Keele University, Stoke-on-Trent, UK
| | - Emmanouil S Brilakis
- Department of Cardiology, Minneapolis Heart Institute Foundation, Abbott Northwestern Hospital, Minneapolis, Minnesota, USA
| | - M Chadi Alraies
- Detroit Medical Center, Heart Hospital, Detroit, Michigan, USA
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32
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Spagnolo-Allende A, Gutierrez J. Role of Brain Arterial Remodeling in HIV-Associated Cerebrovascular Outcomes. Front Neurol 2021; 12:593605. [PMID: 34239489 PMCID: PMC8258100 DOI: 10.3389/fneur.2021.593605] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 05/07/2021] [Indexed: 01/11/2023] Open
Abstract
As the life expectancy of people living with HIV (PLWH) on combination antiretroviral therapy (cART) increases, so does morbidity from cerebrovascular disease and neurocognitive disorders. Brain arterial remodeling stands out as a novel investigational target to understand the role of HIV in cerebrovascular and neurocognitive outcomes. We therefore conducted a review of publications in PubMed, EMBASE, Web of Science and Wiley Online Library, from inception to April 2021. We included search terms such as HIV, cART, brain, neuroimmunity, arterial remodeling, cerebrovascular disease, and neurocognitive disorders. The literature shows that, in the post-cART era, PLWH continue to experience an increased risk of stroke and neurocognitive disorders (albeit milder forms) compared to uninfected populations. PLWH who are immunosuppressed have a higher proportion of hemorrhagic strokes and strokes caused by opportunistic infection and HIV vasculopathy, while PLWH on long-term cART have higher rates of ischemic strokes, compared to HIV-seronegative controls. Brain large artery atherosclerosis in PLWH is associated with lower CD4 nadir and higher CD4 count during the stroke event. HIV vasculopathy, a form of non-atherosclerotic outward remodeling, on the other hand, is associated with protracted immunosuppression. HIV vasculopathy was also linked to a thinner media layer and increased adventitial macrophages, suggestive of non-atherosclerotic degeneration of the brain arterial wall in the setting of chronic central nervous system inflammation. Cerebrovascular architecture seems to be differentially affected by HIV infection in successfully treated versus immunosuppressed PLWH. Brain large artery atherosclerosis is prevalent even with long-term immune reconstitution post-cART. HIV-associated changes in brain arterial walls may also relate to higher rates of HIV-associated neurocognitive disorders, although milder forms are more prevalent in the post-cART era. The underlying mechanisms of HIV-associated pathological arterial remodeling remain poorly understood, but a role has been proposed for chronic HIV-associated inflammation with increased burden on the vasculature. Neuroimaging may come to play a role in assessing brain arterial remodeling and stratifying cerebrovascular risk, but the data remains inconclusive. An improved understanding of the different phenotypes of brain arterial remodeling associated with HIV may reveal opportunities to reduce rates of cerebrovascular disease in the aging population of PLWH on cART.
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Affiliation(s)
| | - Jose Gutierrez
- Department of Neurology, Columbia University Irving Medical Center, New York, NY, United States
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33
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Yang X, Gao LY, Qin S, Ma KH, Luo SX, Qin CC. Alcohol consumption may not affect the diameter of the coronary arteries in men with chest pain. J Int Med Res 2021; 48:300060520913781. [PMID: 32316821 PMCID: PMC7177991 DOI: 10.1177/0300060520913781] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Objective The effect of alcohol consumption on the risk of coronary heart disease is
controversial. Several studies have assessed the effects of alcohol on the
formation of atherosclerotic plaques, but few studies have evaluated the
chronic effects of alcohol consumption on the coronary artery diameter. We
investigated whether alcohol consumption affects the coronary artery
diameter. Methods This prospective study enrolled men who were undergoing coronary angiography
at the First Affiliated Hospital of Chongqing Medical University from
November 2016 to December 2017. The participants were categorized into three
groups based on their drinking behavior: heavy drinking (>175 g/week in
the last 2 years, n = 70), moderate drinking (>42 to ≤175 g/week in the
last 2 years, n = 53), and nondrinking (lifetime alcohol consumption of
<98 g, n = 79). The diameters of the left and right coronary arteries
were compared among the three groups. Results No significant differences in the diameters of the left and right coronary
arteries were observed among the three groups. Conclusions Alcohol consumption may not affect the diameter of the coronary arteries.
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Affiliation(s)
- Xin Yang
- Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,Department of Cardiology, the People's Hospital of Rongchang District, Chongqing, China
| | - Ling-Yun Gao
- Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Shu Qin
- Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Kang-Hua Ma
- Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Su-Xin Luo
- Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Chun-Chang Qin
- Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
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34
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Monteiro A, Lopes DK, Aghaebrahim A, Hanel R. Optical coherence tomography for elucidation of flow-diversion phenomena: The concept of endothelized mural thrombus behind reversible in-stent stenosis in flow-diverters. Interv Neuroradiol 2021; 27:774-780. [PMID: 33752477 DOI: 10.1177/15910199211003432] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
PURPOSE Flow-diverters have revolutionized the endovascular treatment of intracranial aneurysms, offering a durable solution to aneurysms with high recurrence rates after conventional stent-assisted coiling. Events that occur after treatment with flow-diversion, such as in-stent stenosis (ISS) are not well understood and require further assessment. After assessing an animal model with Optical Coherence Tomography (OCT), we propose a concept that could explain the mechanism causing reversible ISS after treatment of intracranial aneurysms with flow-diverters. METHODS Six Pipeline Flex embolization devices (PED-Flex), six PED with Shield technology (PED-Shield), and four Solitaire AB devices were implanted in the carotid arteries (two stents per vessel) of four pigs. Intravascular optical coherence tomography (OCT) and digital subtraction angiography (DSA) images obtained on day 21 were compared to histological specimens. RESULTS A case of ISS in a PED-Flex device was assessed with OCT imaging. Neointima with asymmetrical topography completely covering the PED struts was observed. Histological preparations of the stenotic area demonstrated thrombus on the surface of device struts, covered by neointima. CONCLUSION This study provides a plausible concept for reversible ISS in flow-diverters. Based on an observation of a previous experiment, we propose that similar cases of ISS are related to thrombus presence underneath endothelization, but further experiments focused on this phenomenon are needed. Optical Coherence Tomography will be useful tool when available for clinical use.
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Affiliation(s)
- Andre Monteiro
- Department of Cerebrovascular and Endovascular Surgery, Baptist Neurological Institute/Lyerly Neurosurgery, Jacksonville, FL, USA
| | - Demetrius K Lopes
- Department of Cerebrovascular and Endovascular Surgery, Baptist Neurological Institute/Lyerly Neurosurgery, Jacksonville, FL, USA
| | - Amin Aghaebrahim
- Department of Cerebrovascular and Endovascular Surgery, Baptist Neurological Institute/Lyerly Neurosurgery, Jacksonville, FL, USA
| | - Ricardo Hanel
- Department of Neurosurgery, Advocate Aurora Health, Chicago, IL, USA
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35
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Al-Mashhadi RH, Al-Mashhadi AL, Nasr ZP, Mortensen MB, Lewis EA, Camafeita E, Ravlo K, Al-Mashhadi Z, Kjær DW, Palmfeldt J, Bie P, Jensen JM, Nørgaard BL, Falk E, Vázquez J, Bentzon JF. Local Pressure Drives Low-Density Lipoprotein Accumulation and Coronary Atherosclerosis in Hypertensive Minipigs. J Am Coll Cardiol 2021; 77:575-589. [PMID: 33538256 DOI: 10.1016/j.jacc.2020.11.059] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 11/12/2020] [Accepted: 11/22/2020] [Indexed: 01/30/2023]
Abstract
BACKGROUND The mechanisms by which hypertension accelerates coronary artery disease are poorly understood. Patients with hypertension often have confounding humoral changes, and to date, no experimental models have allowed analysis of the isolated effect of pressure on atherosclerosis in a setting that recapitulates the dimensions and biomechanics of human coronary arteries. OBJECTIVES This study sought to analyze the effect of pressure on coronary atherosclerosis and explore the underlying mechanisms. METHODS Using inflatable suprarenal aortic cuffs, we increased mean arterial pressure by >30 mm Hg in the cephalad body part of wild-type and hypercholesterolemic proprotein convertase subtilisin kexin type 9 (PCSK9)D374Y Yucatan minipigs for >1 year. Caudal pressures remained normal. RESULTS Under hypercholesterolemic conditions in PCSK9D374Y transgenic minipigs, cephalad hypertension accelerated coronary atherosclerosis to almost 5-fold with consistent development of fibroatheromas that were sufficiently large to cause stenosis on computed tomography angiography. This was caused by local pressure forces, because vascular beds shielded from hypertension, but exposed to the same humoral factors, showed no changes in lesion formation. The same experiment was conducted under normocholesterolemic conditions in wild-type minipigs to examine the underlying mechanisms. Hypertension produced clear changes in the arterial proteome with increased abundance of mechanical strength proteins and reduced levels of infiltrating plasma macromolecules. This was paralleled by increased smooth muscle cells and increased intimal accumulation of low-density lipoproteins in the coronary arteries. CONCLUSIONS Increased pressure per se facilitates coronary atherosclerosis. Our data indicate that restructuring of the artery to match increased tensile forces in hypertension alters the passage of macromolecules and leads to increased intimal accumulation of low-density lipoproteins.
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Affiliation(s)
- Rozh H Al-Mashhadi
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark; Department of Radiology, Aarhus University Hospital, Aarhus, Denmark; Department of Cardiology, Aarhus University Hospital, Aarhus, Denmark.
| | - Ahmed L Al-Mashhadi
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark; Department of Cardiology, Aarhus University Hospital, Aarhus, Denmark
| | - Zahra P Nasr
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Martin Bødtker Mortensen
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark; Department of Cardiology, Aarhus University Hospital, Aarhus, Denmark
| | - Esmeralda A Lewis
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | - Emilio Camafeita
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares, Madrid, Spain
| | - Kristian Ravlo
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Zheer Al-Mashhadi
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark; Steno Diabetes Center Aarhus, Aarhus University Hospital, Aarhus, Denmark
| | - Daniel W Kjær
- Department of Surgery, Aarhus University Hospital, Aarhus, Denmark
| | - Johan Palmfeldt
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Peter Bie
- Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Jesper M Jensen
- Department of Cardiology, Aarhus University Hospital, Aarhus, Denmark
| | - Bjarne L Nørgaard
- Department of Cardiology, Aarhus University Hospital, Aarhus, Denmark
| | - Erling Falk
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark; Department of Cardiology, Aarhus University Hospital, Aarhus, Denmark
| | - Jesús Vázquez
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares, Madrid, Spain
| | - Jacob F Bentzon
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark; Department of Cardiology, Aarhus University Hospital, Aarhus, Denmark; Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain; Steno Diabetes Center Aarhus, Aarhus University Hospital, Aarhus, Denmark.
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36
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Tao L, Li XQ, Hou XW, Yang BQ, Xia C, Ntaios G, Chen HS. Intracranial Atherosclerotic Plaque as a Potential Cause of Embolic Stroke of Undetermined Source. J Am Coll Cardiol 2021; 77:680-691. [PMID: 33573737 DOI: 10.1016/j.jacc.2020.12.015] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 12/08/2020] [Indexed: 11/29/2022]
Abstract
BACKGROUND Previous studies investigated the potential mechanism of embolic stroke of undetermined source (ESUS) from extracranial artery plaque, but there has been no study other than a case report on high-risk intracranial plaque in ESUS. OBJECTIVES The aim of this study was to investigate the issue by evaluating the morphology and composition of intracranial plaque in patients with ESUS and small-vessel disease (SVD) using 3.0-T high-resolution magnetic resonance imaging. METHODS Two hundred forty-three consecutive patients with ESUS and 160 patients with SVD-associated stroke between January 2015 and December 2019 were retrospectively enrolled. Multidimensional parameters involving the presence of plaque on both sides, including remodeling index (RI), plaque burden, presence of discontinuity of plaque surface, thick fibrous cap, intraplaque hemorrhage, and complicated American Heart Association type VI plaque at the maximal luminal narrowing site, were evaluated using intracranial high-resolution magnetic resonance imaging. RESULTS Among 243 patients with ESUS, the prevalence of intracranial plaque was much higher in the ipsilateral than the contralateral side (63.8% vs. 42.8%; odds ratio [OR]: 5.25; 95% confidence interval [CI]: 2.83 to 9.73), a finding that was not evident in patients with SVD (35.6% vs. 30.6%; OR: 2.14; 95% CI: 0.87 to 5.26; p = 0.134). Logistic analysis showed that RI was independently associated with ESUS in model 1 (OR: 2.329; 95% CI: 1.686 to 3.217; p < 0.001) and model 2 (OR: 2.295; 95% CI: 1.661 to 3.172; p < 0.001). RI alone with an optimal cutoff of 1.162, corresponding to an area under the curve of 0.740, had good diagnostic efficiency for ESUS. CONCLUSIONS The present study supports an etiologic role of high-risk nonstenotic intracranial plaque in ESUS.
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Affiliation(s)
- Lin Tao
- Department of Neurology, General Hospital of Northern Theater Command, Shen Yang, China
| | - Xiao-Qiu Li
- Department of Neurology, General Hospital of Northern Theater Command, Shen Yang, China
| | - Xiao-Wen Hou
- Department of Neurology, General Hospital of Northern Theater Command, Shen Yang, China
| | - Ben-Qiang Yang
- Department of Radiology, General Hospital of Northern Theater Command, Shen Yang, China
| | - Cheng Xia
- Department of Neurology, General Hospital of Northern Theater Command, Shen Yang, China
| | - George Ntaios
- Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece
| | - Hui-Sheng Chen
- Department of Neurology, General Hospital of Northern Theater Command, Shen Yang, China.
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Clinical factors associated with slow flow in left main coronary artery-acute coronary syndrome without cardiogenic shock. Cardiovasc Interv Ther 2020; 36:452-461. [PMID: 33030714 DOI: 10.1007/s12928-020-00717-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Accepted: 09/29/2020] [Indexed: 02/04/2023]
Abstract
Since slow flow can be a fatal complication in left main coronary artery (LMCA)-acute coronary syndrome (ACS) patients, it should be important to anticipate and prepare slow flow during primary PCI for LMCA-ACS. We hypothesized that intravascular ultrasound (IVUS) findings would be useful to predict slow flow for LMCA-ACS patients without cardiogenic shock (CS). The purpose of this study was to investigate clinical factors associated with slow flow in LMCA-ACS patients without CS. We included 60 LMCA-ACS patients without CS, and divided into the slow flow group (n = 18) and the non-slow flow group (n = 42). Slow flow was defined as either transient or persistent TIMI flow grade ≤ 2. The prevalence of ST-segment elevation myocardial infarction (STEMI) was significantly higher in the slow flow group (55.6%) than in the non-slow flow group (11.9%) (p = 0.002). In the IVUS analysis, remodeling index was significantly greater in the slow flow group (1.15 ± 0.17) than in the non-slow flow group (0.99 ± 0.11) (p = 0.001). The multivariate logistic regression analyses in the IVUS factors revealed that remodeling index was significantly associated with slow flow (0.1 increase: OR 2.238, 95% CI 1.144-4.379, p = 0.019). In conclusion, remodeling index was significantly associated with slow flow. Our results suggest that the remodeling index determined by IVUS would be useful to find high-risk features of slow flow in LMCA-ACS patients without CS.
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38
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Olender ML, Athanasiou LS, Michalis LK, Fotiadis DI, Edelman ER. A Domain Enriched Deep Learning Approach to Classify Atherosclerosis using Intravascular Ultrasound Imaging. IEEE JOURNAL OF SELECTED TOPICS IN SIGNAL PROCESSING 2020; 14:1210-1220. [PMID: 33520048 PMCID: PMC7845913 DOI: 10.1109/jstsp.2020.3002385] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Intravascular ultrasound (IVUS) imaging is widely used for diagnostic imaging in interventional cardiology. The detection and quantification of atherosclerosis from acquired images is typically performed manually by medical experts or by virtual histology IVUS (VH-IVUS) software. VH-IVUS analyzes backscattered radio frequency (RF) signals to provide a color-coded tissue map, and is the method of choice for assessing atherosclerotic plaque in situ. However, a significant amount of tissue cannot be analyzed in reasonable time because the method can be applied just once per cardiac cycle. Furthermore, only hardware and software compatible with RF signal acquisition and processing may be used. We present an image-based tissue characterization method that can be applied to entire acquisition sequences post hoc for the assessment of diseased vessels. The pixel-based method utilizes domain knowledge of arterial pathology and physiology, and leverages technological advances of convolutional neural networks to segment diseased vessel walls into the same tissue classes as virtual histology using only grayscale IVUS images. The method was trained and tested on patches extracted from VH-IVUS images acquired from several patients, and achieved overall accuracy of 93.5% for all segmented tissue. Imposing physically-relevant spatial constraints driven by domain knowledge was key to achieving such strong performance. This enriched approach offers capabilities akin to VH-IVUS without the constraints of RF signals or limited once-per-cycle analysis, offering superior potential information acquisition speed, reduced hardware and software requirements, and more widespread applicability. Such an approach may well yield promise for future clinical and research applications.
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Affiliation(s)
- Max L Olender
- Department of Mechanical Engineering and the Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA 02139 USA
| | - Lambros S Athanasiou
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA 02139 USA; Cardiovascular Division, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115 USA
| | - Lampros K Michalis
- Faculty of Medicine, School of Health Sciences, University of Ioannina and the 2nd Department of Cardiology, University Hospital of Ioannina, Ioannina, 45500 Greece
| | - Dimitris I Fotiadis
- Unit of Medical Technology and Intelligent Information Systems, Department of Materials Science and Engineering, University of Ioannina, Ioannina, 45110 Greece; Department of Biomedical Research, Institute of Molecular Biology and Biotechnology - FORTH, Ioannina, 45110 Greece
| | - Elazer R Edelman
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA 02139 USA; Cardiovascular Division, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115 USA
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Murgia A, Erta M, Suri JS, Gupta A, Wintermark M, Saba L. CT imaging features of carotid artery plaque vulnerability. ANNALS OF TRANSLATIONAL MEDICINE 2020; 8:1261. [PMID: 33178793 PMCID: PMC7607080 DOI: 10.21037/atm-2020-cass-13] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Despite steady advances in medical care, cardiovascular disease remains one of the main causes of death and long-term morbidity worldwide. Up to 30% of strokes are associated with the presence of carotid atherosclerotic plaques. While the degree of stenosis has long been recognized as the main guiding factor in risk stratification and therapeutical decisions, recent evidence suggests that features of unstable, or ‘vulnerable’, plaques offer better prognostication capabilities. This paradigmatic shift has motivated researchers to explore the potentialities of non-invasive diagnostic tools to image not only the lumen, but also the vascular wall and the structural characteristics of the plaque. The present review will offer a panoramic on the imaging modalities currently available to characterize carotid atherosclerotic plaques and, in particular, it will focus on the increasingly important role covered by multidetector computed tomographic angiography.
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Affiliation(s)
- Alessandro Murgia
- Department of Radiology, Azienda Ospedaliero Universitaria (A.O.U.), di Cagliari - Polo di Monserrato, s.s. 554 Monserrato (Cagliari), Italy
| | - Marco Erta
- Department of Radiology, Azienda Ospedaliero Universitaria (A.O.U.), di Cagliari - Polo di Monserrato, s.s. 554 Monserrato (Cagliari), Italy
| | - Jasjit S Suri
- Stroke Monitoring and Diagnosis Division, AtheroPoint(tm), Roseville, CA, USA
| | - Ajay Gupta
- Department of Radiology, Weill Cornell University, New York, NY, USA
| | - Max Wintermark
- Department of Radiology, Stanford University, Stanford, CA, USA
| | - Luca Saba
- Department of Radiology, Azienda Ospedaliero Universitaria (A.O.U.), di Cagliari - Polo di Monserrato, s.s. 554 Monserrato (Cagliari), Italy
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40
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Koskinas KC, Maldonado R, Garcia-Garcia HM, Yamaji K, Taniwaki M, Ueki Y, Otsuka T, Zanchin C, Karagiannis A, Radu Juul Jensen MD, Losdat S, Zaugg S, Windecker S, Räber L. Relationship between arterial remodelling and serial changes in coronary atherosclerosis by intravascular ultrasound: an analysis of the IBIS-4 study. Eur Heart J Cardiovasc Imaging 2020; 22:1054-1062. [PMID: 32929461 DOI: 10.1093/ehjci/jeaa221] [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: 02/27/2020] [Accepted: 07/22/2020] [Indexed: 11/13/2022] Open
Abstract
AIMS Arterial remodelling is an important determinant of coronary atherosclerosis. Assessment of the remodelling index, comparing a lesion to a local reference site, is a suboptimal correlate of serial vascular changes. We assessed a novel approach which, unlike the local-reference approach, uses the entire artery's global remodelling as reference. METHODS AND RESULTS Serial (baseline and 13 months) intravascular ultrasound was performed in 146 non-infarct-related arteries of 82 patients treated with high-intensity statin. Arteries were divided into 3-mm segments (n = 1479), and focal remodelling was characterized in individual segments at both timepoints applying the global arterial reference approach. First, we compared preceding vascular changes in relation to follow-up remodelling. Second, we examined whether baseline remodelling predicts subsequent plaque progression/regression. At follow-up, segments with constrictive vs. compensatory or expansive remodelling had greater preceding reduction of vessel area (-0.67 vs. -0.38 vs. -0.002 mm2; P < 0.001) and lumen area (-0.82 vs. -0.09 vs. 0.40 mm2; P < 0.001). Overall, we found significant regression in percent atheroma volume (PAV) [-0.80% (-1.41 to -0.19)]. Segments with constrictive remodelling at baseline had greater subsequent PAV regression vs. modest regression in the compensatory, and PAV progression in the expansive remodelling group (-6.14% vs. -0.71% vs. 2.26%; P < 0.001). Lesion-level analyses (n = 118) showed no differences when remodelling was defined by the local reference approach at baseline or follow-up. CONCLUSION Remodelling assessment using a global arterial reference approach, but not the commonly used, local reference site approach, correlated reasonably well with serial changes in arterial dimensions and identified arterial segments with subsequent PAV progression despite intensive statin treatment and overall atheroma regression.
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Affiliation(s)
| | - Rafaela Maldonado
- Department of Cardiology, Bern University Hopsital, Bern, Switzerland
| | - Hector M Garcia-Garcia
- MedStar Cardiovascular Research Network, MedStar Washington Hospital Center, Washinghton, USA
| | - Kyohei Yamaji
- Department of Cardiology, Kokura Memorial Hospital, Kitakyushu, Japan
| | - Masanori Taniwaki
- Department of Cardiology, Bern University Hopsital, Bern, Switzerland
| | - Yasushi Ueki
- Department of Cardiology, Bern University Hopsital, Bern, Switzerland
| | - Tatsuhiko Otsuka
- Department of Cardiology, Bern University Hopsital, Bern, Switzerland
| | - Christian Zanchin
- Department of Cardiology, Bern University Hopsital, Bern, Switzerland
| | | | | | | | - Serge Zaugg
- CTU Bern, University of Bern, Bern, Switzerland
| | - Stephan Windecker
- Department of Cardiology, Bern University Hopsital, Bern, Switzerland
| | - Lorenz Räber
- Department of Cardiology, Bern University Hopsital, Bern, Switzerland
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41
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Usui E, Mintz GS, Lee T, Matsumura M, Zhang Y, Hada M, Yamaguchi M, Hoshino M, Kanaji Y, Sugiyama T, Murai T, Yonetsu T, Kakuta T, Maehara A. Prognostic impact of healed coronary plaque in non-culprit lesions assessed by optical coherence tomography. Atherosclerosis 2020; 309:1-7. [DOI: 10.1016/j.atherosclerosis.2020.07.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Revised: 05/27/2020] [Accepted: 07/10/2020] [Indexed: 12/20/2022]
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42
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Ye D, Wang Z, Ye J, Wang M, Liu J, Xu Y, Jiang H, Chen J, Wan J. Los niveles de interleucina-5 disminuyen en plasma de pacientes con enfermedad coronaria e inhiben la diferenciación in vitro de Th1 y Th17. Rev Esp Cardiol 2020. [DOI: 10.1016/j.recesp.2019.07.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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43
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Östgren CJ, Söderberg S, Festin K, Angerås O, Bergström G, Blomberg A, Brandberg J, Cederlund K, Eliasson M, Engström G, Erlinge D, Fagman E, Hagström E, Lind L, Mannila M, Nilsson U, Oldgren J, Ostenfeld E, Persson A, Persson J, Persson M, Rosengren A, Sundström J, Swahn E, Engvall JE, Jernberg T. Systematic Coronary Risk Evaluation estimated risk and prevalent subclinical atherosclerosis in coronary and carotid arteries: A population-based cohort analysis from the Swedish Cardiopulmonary Bioimage Study. Eur J Prev Cardiol 2020; 28:250-259. [PMID: 33891684 DOI: 10.1177/2047487320909300] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Accepted: 02/06/2020] [Indexed: 01/20/2023]
Abstract
BACKGROUND It is not clear if the European Systematic Coronary Risk Evaluation algorithm is useful for identifying prevalent subclinical atherosclerosis in a population of apparently healthy individuals. Our aim was to explore the association between the risk estimates from Systematic Coronary Risk Evaluation and prevalent subclinical atherosclerosis. DESIGN The design of this study was as a cross-sectional analysis from a population-based study cohort. METHODS From the general population, the Swedish Cardiopulmonary Bioimage Study randomly invited individuals aged 50-64 years and enrolled 13,411 participants mean age 57 (standard deviation 4.3) years; 46% males between November 2013-December 2016. Associations between Systematic Coronary Risk Evaluation risk estimates and coronary artery calcification and plaques in the carotid arteries by using imaging data from a computed tomography of the heart and ultrasonography of the carotid arteries were examined. RESULTS Coronary calcification was present in 39.5% and carotid plaque in 56.0%. In men, coronary artery calcium score >0 ranged from 40.7-65.9% and presence of carotid plaques from 54.5% to 72.8% in the age group 50-54 and 60-65 years, respectively. In women, the corresponding difference was from 17.1-38.9% and from 41.0-58.4%. A doubling of Systematic Coronary Risk Evaluation was associated with an increased probability to have coronary artery calcium score >0 (odds ratio: 2.18 (95% confidence interval 2.07-2.30)) and to have >1 carotid plaques (1.67 (1.61-1.74)). CONCLUSION Systematic Coronary Risk Evaluation estimated risk is associated with prevalent subclinical atherosclerosis in two major vascular beds in a general population sample without established cardiovascular disease or diabetes mellitus. Thus, the Systematic Coronary Risk Evaluation risk chart may be of use for estimating the risk of subclinical atherosclerosis.
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Affiliation(s)
- Carl J Östgren
- Department of Medical and Health Sciences, Linköping University, Sweden
| | - Stefan Söderberg
- Department of Public Health and Clinical Medicine, Umeå University, Sweden
| | - Karin Festin
- Department of Medical and Health Sciences, Linköping University, Sweden
| | - Oskar Angerås
- Department of Cardiology, Sahlgrenska University Hospital, Sweden.,Department of Molecular and Clinical Medicine, University of Gothenburg, Sweden
| | - Göran Bergström
- Department of Molecular and Clinical Medicine, University of Gothenburg, Sweden.,Department of Clinical Physiology, Sahlgrenska University Hospital, Sweden
| | - Anders Blomberg
- Department of Public Health and Clinical Medicine, Umeå University, Sweden
| | - John Brandberg
- Department of Radiology, Sahlgrenska University Hospital, Sweden.,Department of Radiology, University of Gothenburg, Sweden
| | - Kerstin Cederlund
- Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Sweden
| | - Mats Eliasson
- Department of Public Health and Clinical Medicine, Umeå University, Sweden
| | - Gunnar Engström
- Department of Clinical Sciences in Malmö, Lund University, Sweden
| | - David Erlinge
- Department of Clinical Sciences Lund, Lund University, Sweden.,Skåne University Hospital, Sweden
| | - Erika Fagman
- Department of Radiology, Sahlgrenska University Hospital, Sweden.,Department of Radiology, University of Gothenburg, Sweden
| | - Emil Hagström
- Department of Medical Sciences, Uppsala University, Sweden.,Uppsala Clinical Research Center, Uppsala University, Sweden
| | - Lars Lind
- Department of Medical Sciences, Uppsala University, Sweden
| | - Maria Mannila
- Department of Medicine, Karolinska University Hospital, Sweden
| | - Ulf Nilsson
- Department of Public Health and Clinical Medicine, Umeå University, Sweden
| | - Jonas Oldgren
- Department of Medical Sciences, Uppsala University, Sweden.,Uppsala Clinical Research Center, Uppsala University, Sweden
| | - Ellen Ostenfeld
- Department of Clinical Sciences Lund, Lund University, Sweden.,Skåne University Hospital, Sweden
| | - Anders Persson
- Department of Medical and Health Sciences, Linköping University, Sweden.,Centre of Medical Image Science and Visualization, Linkoping University, Sweden.,Department of Radiology, Linköping University, Sweden
| | - Jonas Persson
- Department of Clinical Sciences, Danderyd University Hospital, Sweden
| | - Margaretha Persson
- Department of Clinical Sciences in Malmö, Lund University, Sweden.,Skåne University Hospital, Sweden
| | - Annika Rosengren
- Department of Molecular and Clinical Medicine, University of Gothenburg, Sweden.,Sahlgrenska University Hospital, Sweden
| | - Johan Sundström
- Department of Medical Sciences, Uppsala University, Sweden.,The George Institute for Global Health, University of New South Wales, Australia
| | - Eva Swahn
- Department of Medical and Health Sciences, Linköping University, Sweden.,Department of Cardiology, Linköping University, Sweden
| | - Jan E Engvall
- Department of Medical and Health Sciences, Linköping University, Sweden.,Centre of Medical Image Science and Visualization, Linkoping University, Sweden.,Department of Clinical Physiology, Linköping University, Sweden
| | - Tomas Jernberg
- Department of Clinical Sciences, Danderyd University Hospital, Sweden
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44
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Shi X, Gao J, Lv Q, Cai H, Wang F, Ye R, Liu X. Calcification in Atherosclerotic Plaque Vulnerability: Friend or Foe? Front Physiol 2020; 11:56. [PMID: 32116766 PMCID: PMC7013039 DOI: 10.3389/fphys.2020.00056] [Citation(s) in RCA: 87] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Accepted: 01/21/2020] [Indexed: 12/23/2022] Open
Abstract
Calcification is a clinical marker of atherosclerosis. This review focuses on recent findings on the association between calcification and plaque vulnerability. Calcified plaques have traditionally been regarded as stable atheromas, those causing stenosis may be more stable than non-calcified plaques. With the advances in intravascular imaging technology, the detection of the calcification and its surrounding plaque components have evolved. Microcalcifications and spotty calcifications represent an active stage of vascular calcification correlated with inflammation, whereas the degree of plaque calcification is strongly inversely related to macrophage infiltration. Asymptomatic patients have a higher content of plaque calcification than that in symptomatic patients. The effect of calcification might be biphasic. Plaque rupture has been shown to correlate positively with the number of spotty calcifications, and inversely with the number of large calcifications. There may be certain stages of calcium deposition that may be more atherogenic. Moreover, superficial calcifications are independently associated with plaque rupture and intraplaque hemorrhage, which may be due to the concentrated and asymmetrical distribution of biological stress in plaques. Conclusively, calcification of differential amounts, sizes, shapes, and positions may play differential roles in plaque homeostasis. The surrounding environments around the calcification within plaques also have impacts on plaque homeostasis. The interactive effects of these important factors of calcifications and plaques still await further study.
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Affiliation(s)
- Xuan Shi
- Department of Neurology, Jinling Hospital, Nanjing Medical University, Nanjing, China
| | - Jie Gao
- Department of Neurology, Jinling Hospital, Nanjing Medical University, Nanjing, China
| | - Qiushi Lv
- Department of Neurology, Jinling Hospital, Nanjing Medical University, Nanjing, China
| | - Haodi Cai
- Department of Neurology, Jinling Hospital, Southeast University, Nanjing, China
| | - Fang Wang
- Department of Neurology, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Ruidong Ye
- Department of Neurology, Jinling Hospital, Nanjing Medical University, Nanjing, China
| | - Xinfeng Liu
- Department of Neurology, Jinling Hospital, Nanjing Medical University, Nanjing, China
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45
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Marlevi D, Mulvagh SL, Huang R, DeMarco JK, Ota H, Huston J, Winter R, Macedo TA, Abdelmoneim SS, Larsson M, Pellikka PA, Urban MW. Combined spatiotemporal and frequency-dependent shear wave elastography enables detection of vulnerable carotid plaques as validated by MRI. Sci Rep 2020; 10:403. [PMID: 31942025 PMCID: PMC6962347 DOI: 10.1038/s41598-019-57317-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Accepted: 12/25/2019] [Indexed: 12/29/2022] Open
Abstract
Fatal cerebrovascular events are often caused by rupture of atherosclerotic plaques. However, rupture-prone plaques are often distinguished by their internal composition rather than degree of luminal narrowing, and conventional imaging techniques might thus fail to detect such culprit lesions. In this feasibility study, we investigate the potential of ultrasound shear wave elastography (SWE) to detect vulnerable carotid plaques, evaluating group velocity and frequency-dependent phase velocities as novel biomarkers for plaque vulnerability. In total, 27 carotid plaques from 20 patients were scanned by ultrasound SWE and magnetic resonance imaging (MRI). SWE output was quantified as group velocity and frequency-dependent phase velocities, respectively, with results correlated to intraplaque constituents identified by MRI. Overall, vulnerable lesions graded as American Heart Association (AHA) type VI showed significantly higher group and phase velocity compared to any other AHA type. A selection of correlations with intraplaque components could also be identified with group and phase velocity (lipid-rich necrotic core content, fibrous cap structure, intraplaque hemorrhage), complementing the clinical lesion classification. In conclusion, we demonstrate the ability to detect vulnerable carotid plaques using combined SWE, with group velocity and frequency-dependent phase velocity providing potentially complementary information on plaque characteristics. With such, the method represents a promising non-invasive approach for refined atherosclerotic risk prediction.
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Affiliation(s)
- David Marlevi
- Department of Biomedical Engineering and Health Systems, KTH Royal Institute of Technology, Stockholm, Sweden. .,Department of Clinical Sciences, Karolinska Institutet, Stockholm, Sweden.
| | - Sharon L Mulvagh
- Department of Cardiovascular Medicine, Mayo Clinic College of Medicine, Rochester, MN, United States of America.,Division of Cardiology, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Runqing Huang
- Department of Cardiovascular Medicine, Mayo Clinic College of Medicine, Rochester, MN, United States of America
| | - J Kevin DeMarco
- Department of Radiology, Walter Reed National Military Medical Center, Bethesda, MD, United States of America.,Department of Radiology, Uniformed Services University of Health Sciences, Bethesda, MD, United States of America
| | - Hideki Ota
- Department of Diagnostic Radiology, Tohoku University Hospital, Sendai, Japan
| | - John Huston
- Department of Radiology, Mayo Clinic College of Medicine, Rochester, MN, United States of America
| | - Reidar Winter
- Department of Clinical Sciences, Karolinska Institutet, Stockholm, Sweden
| | - Thanila A Macedo
- Department of Radiology, Mayo Clinic College of Medicine, Rochester, MN, United States of America
| | - Sahar S Abdelmoneim
- Department of Cardiovascular Medicine, Mayo Clinic College of Medicine, Rochester, MN, United States of America
| | - Matilda Larsson
- Department of Biomedical Engineering and Health Systems, KTH Royal Institute of Technology, Stockholm, Sweden.,Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Patricia A Pellikka
- Department of Cardiovascular Medicine, Mayo Clinic College of Medicine, Rochester, MN, United States of America
| | - Matthew W Urban
- Department of Radiology, Mayo Clinic College of Medicine, Rochester, MN, United States of America
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Lin Q, Liu X, Chen B, Tian D, Liu C, Du A, Lu B, Liu G, Wu B, Li L, Liang H, Wu S, Shi Z, Gong T, Yan Z, Sun Q, Fang L, Zhang L, Sun D, Li M, Xu WH. Design of stroke imaging package study of intracranial atherosclerosis: a multicenter, prospective, cohort study. ANNALS OF TRANSLATIONAL MEDICINE 2020; 8:13. [PMID: 32055604 DOI: 10.21037/atm.2019.11.111] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Background Intracranial atherosclerosis (ICAS) is a major cause of stroke worldwide. However, much remains unknown regarding its underlying pathophysiology. High-resolution magnetic resonance imaging (HR-MRI) can clearly display intracranial vessel wall lesions in vivo. The aim of stroke imaging package study of ICAS (SIPS-ICAS) study is to explore the stroke mechanisms of symptomatic ICAS, the dynamic changes under aggressive medical treatment and their associations with clinical events using conventional MRI sequences plus HR-MRI. Methods This is a multicenter, prospective, cohort study recruiting first-ever acute ischemic stroke patients attributed to intracranial large artery stenosis (>50% or occlusion). Subjects undergo a pre-designed stroke imaging packages at baseline and are recommended to receive aggressive medical treatments. Participants will be followed up for functional outcome, stroke recurrence, and death events at 3, 6 and 12 months and retake HR-MRI imaging at 6 months. Results Enrollment began in November 2018 and 96 patients have been enrolled as of September 2019. Conclusions The SIPS-ICAS study will provide insights into the pathophysiology of ICAS and identify specific imaging markers for risk stratification and prognosis prediction. At the same time, the feasibility and validity of the new stroke imaging package including HR-MRI will be assessed, which is promising for clinical routine use.
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Affiliation(s)
- Qianqian Lin
- Department of Neurology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Xiaoyun Liu
- Department of Neurology, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, China
| | - Beilei Chen
- Department of Neurology, Subei People's Hospital of Jiangsu Province, Yangzhou 225001, China
| | - Daishi Tian
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Changyun Liu
- Department of Neurology, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - Ailian Du
- Department of Neurology, Tongren Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - Baoquan Lu
- Department of Neurology, Tangshan Gongren Hospital, Tangshan 063007, China
| | - Guangzhi Liu
- Department of Neurology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - Bo Wu
- Department of Neurology, West China Hospital, Sichuan University, Chengdu 610047, China
| | - Litao Li
- Department of Neurology, Hebei General Hospital, Shijiazhuang 050051, China
| | - Hui Liang
- Department of Neurology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Shiwen Wu
- Department of Neurology, The Third Medical Center of Chinese PLA General Hospital, Beijing 100039, China
| | - Zhimin Shi
- Department of Neurology, People's Hospital Ningxia Hui Autonomous Region, Yinchuan 750021, China
| | - Tao Gong
- Department of Neurology, Beijing Hospital, National Center of Gerontology, Beijing 100730, China
| | - Zhongrui Yan
- Department of Neurology, Jining No. 1 People's Hospital, Jining 272011, China
| | - Qinjian Sun
- Department of Neurology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China
| | - Le Fang
- Department of Neurology, China-Japan Union Hospital, Jilin University, Changchun 130031, China
| | - Lifang Zhang
- Department of Neurology, Changzhi People's Hospital, Shanxi Medical University, Changzhi 046000, China
| | - Degang Sun
- Department of Neurology, Hong Xinglong Central Hospital, Shuangyashan 155811, China
| | - Mingli Li
- Department of Radiology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Wei-Hai Xu
- Department of Neurology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China
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47
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Vancheri F, Longo G, Vancheri S, Danial JSH, Henein MY. Coronary Artery Microcalcification: Imaging and Clinical Implications. Diagnostics (Basel) 2019; 9:E125. [PMID: 31547506 PMCID: PMC6963848 DOI: 10.3390/diagnostics9040125] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 09/18/2019] [Accepted: 09/19/2019] [Indexed: 02/06/2023] Open
Abstract
Strategies to prevent acute coronary and cerebrovascular events are based on accurate identification of patients at increased cardiovascular (CV) risk who may benefit from intensive preventive measures. The majority of acute CV events are precipitated by the rupture of the thin cap overlying the necrotic core of an atherosclerotic plaque. Hence, identification of vulnerable coronary lesions is essential for CV prevention. Atherosclerosis is a highly dynamic process involving cell migration, apoptosis, inflammation, osteogenesis, and intimal calcification, progressing from early lesions to advanced plaques. Coronary artery calcification (CAC) is a marker of coronary atherosclerosis, correlates with clinically significant coronary artery disease (CAD), predicts future CV events and improves the risk prediction of conventional risk factors. The relative importance of coronary calcification, whether it has a protective effect as a stabilizing force of high-risk atherosclerotic plaque has been debated until recently. The extent of calcium in coronary arteries has different clinical implications. Extensive plaque calcification is often a feature of advanced and stable atherosclerosis, which only rarely results in rupture. These macroscopic vascular calcifications can be detected by computed tomography (CT). The resulting CAC scoring, although a good marker of overall coronary plaque burden, is not useful to identify vulnerable lesions prone to rupture. Unlike macrocalcifications, spotty microcalcifications assessed by intravascular ultrasound or optical coherence tomography strongly correlate with plaque instability. However, they are below the resolution of CT due to limited spatial resolution. Microcalcifications develop in the earliest stages of coronary intimal calcification and directly contribute to plaque rupture producing local mechanical stress on the plaque surface. They result from a healing response to intense local macrophage inflammatory activity. Most of them show a progressive calcification transforming the early stage high-risk microcalcification into the stable end-stage macroscopic calcification. In recent years, new developments in noninvasive cardiovascular imaging technology have shifted the study of vulnerable plaques from morphology to the assessment of disease activity of the atherosclerotic lesions. Increased disease activity, detected by positron emission tomography (PET) and magnetic resonance (MR), has been shown to be associated with more microcalcification, larger necrotic core and greater rates of events. In this context, the paradox of increased coronary artery calcification observed in statin trials, despite reduced CV events, can be explained by the reduction of coronary inflammation induced by statin which results in more stable macrocalcification.
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Affiliation(s)
| | - Giovanni Longo
- Cardiovascular and Interventional Department, S.Elia Hospital, 93100 Caltanissetta, Italy.
| | - Sergio Vancheri
- Radiology Department, I.R.C.C.S. Policlinico San Matteo, 27100 Pavia, Italy.
| | - John S H Danial
- Department of Chemistry, University of Cambridge, Cambridge CB2 1EW, UK.
| | - Michael Y Henein
- Institute of Public Health and Clinical Medicine, Umea University, 901 87 Umea, Sweden.
- Institute of Environment & Health and Societies, Brunel University, Middlesex SW17 0RE, UK.
- Molecular and Clinical Sciences Research Institute, St George's University, London UB8 3PH, UK.
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48
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Mostafa SA, Aboelazem T, Sanad O, Abdelghafar H, Azam A. Multi-slice CT coronary angiography assessment of remodeling index in patients with low- to intermediate-risk stable angina. Egypt Heart J 2019; 71:7. [PMID: 31659543 PMCID: PMC6821415 DOI: 10.1186/s43044-019-0011-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Accepted: 07/24/2019] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Early identification of vulnerable plaques by remodeling index prior to rupture and development of acute event is of considerable importance especially by a reliable non-invasive method as CT coronary angiography (CTA), so we aim to evaluate coronary artery remodeling index in patients with low- to intermediate-risk stable angina by CTA. RESULTS This single-center, cross-sectional, observational study included 150 patients with stable angina with normal resting ECG, negative markers, normal systolic function by 2D echocardiography (EF > 50%), and without regional wall motion abnormality at rest who were referred to MSCT evaluation of the coronary artery tree; the mean age was 56.8 ± 6.4 years, 83.3% had one-vessel disease, and 16.7% had two-vessel diseases. The mean remodeling index (RI) was 1.04 ± 0.28, 38% had significant positive remodeling, LAD was the most affected vessel (55.3), and proximal lesions were predominant in 48.5%; there was a statistically significant positive correlation between RI and cholesterol, triglyceride, LDL, duration of DM, HBA1c, and plaque burden (P < 0.001) and a statistically significant negative correlation with HDL (P < 0.001). Predictors of higher RI were positive family history, diabetes mellitus, low HDL, HBA1c, and plaque burden% (P < 0.001). Patients with remodeling index > 1.1 were diabetic, hypertensive, smoker, with longer duration of diabetes mellitus, higher HBA1c, cholesterol, triglyceride, LDL, plaque burden, wall lumen ratio, stenosis area, and lower HDL. CONCLUSION CTA was able to detect the presence and extent of early, non-obstructive but significant coronary artery-positive remodeling in patients with low- to intermediate-risk stable angina patients. TRIAL REGISTRATION NCT03963609 , 22 May 2019.
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Affiliation(s)
- Shaimaa A Mostafa
- Cardiovascular Department, Faculty of Medicine, Benha Univerisity Hospital, Banha, Egypt.
| | - Tarek Aboelazem
- Cardiovascular Department, Faculty of Medicine, Benha Univerisity Hospital, Banha, Egypt
| | - Osama Sanad
- Cardiovascular Department, Faculty of Medicine, Benha Univerisity Hospital, Banha, Egypt
| | | | - Ahmed Azam
- Cardiovascular Department, El-Agoza Police Hospital, Giza, Egypt
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49
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Ye D, Wang Z, Ye J, Wang M, Liu J, Xu Y, Jiang H, Chen J, Wan J. Interleukin-5 levels are decreased in the plasma of coronary artery disease patients and inhibit Th1 and Th17 differentiation in vitro. ACTA ACUST UNITED AC 2019; 73:393-402. [PMID: 31495774 DOI: 10.1016/j.rec.2019.07.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2019] [Accepted: 07/12/2019] [Indexed: 01/22/2023]
Abstract
INTRODUCTION AND OBJECTIVES Interleukin (IL)-5 is an anti-inflammatory cytokine that has been demonstrated to be involved in cardiovascular diseases, including aortic aneurysm and heart failure. This study aimed to investigate the involvement of IL-5 in coronary artery disease (CAD) and the possible mechanisms. METHODS We analyzed IL-5 expression in human coronary artery specimens collected from CAD patients and deceased donors. Plasma IL-5, IL-17, and interferon-γ levels in CAD patients were detected using ELISA kits, with samples from chest pain patients (non-CAD) as controls. Mouse CD4+T helper (Th) cells were separated, and the effect of IL-5 on Th1, regulatory T cell and Th17 differentiation and mRNA levels of their characteristic cytokines were detected using flow cytometry and reverse transcription-quantitative polymerase chain reaction, respectively. RESULTS IL-5 was significantly decreased in the coronary plaque of CAD patients compared with the deceased donors group, and IL-5 was mainly derived from macrophages in the coronary artery plaque. Compared with the non-CAD group, plasma IL-5 levels in the CAD groups were significantly lower, and the sequence from high to low was stable angina pectoris, unstable angina pectoris, and acute myocardial infarction. Binary linear regression analysis showed that IL-5 was independently correlated with the occurrence of CAD. Recombinant mouse IL-5 treatment decreased Th1 and Th17 levels and mRNA expression of their characteristic cytokines in oxidized low-density lipoprotein-treated CD4+Th cells. CONCLUSION IL-5 levels were decreased in CAD patients and inhibited oxidized low-density lipoprotein Th1 and Th17 differentiation in vitro.
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Affiliation(s)
- Di Ye
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China; Cardiovascular Research Institute, Wuhan University, Wuhan, China; Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Zhen Wang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China; Cardiovascular Research Institute, Wuhan University, Wuhan, China; Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Jing Ye
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China; Cardiovascular Research Institute, Wuhan University, Wuhan, China; Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Menglong Wang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China; Cardiovascular Research Institute, Wuhan University, Wuhan, China; Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Jianfang Liu
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China; Cardiovascular Research Institute, Wuhan University, Wuhan, China; Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Yao Xu
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China; Cardiovascular Research Institute, Wuhan University, Wuhan, China; Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Huimin Jiang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China; Cardiovascular Research Institute, Wuhan University, Wuhan, China; Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Jiangbin Chen
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China; Cardiovascular Research Institute, Wuhan University, Wuhan, China; Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Jun Wan
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China; Cardiovascular Research Institute, Wuhan University, Wuhan, China; Hubei Key Laboratory of Cardiology, Wuhan, China.
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50
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Hong S, Kim B, Kim Y, Rha S, Lee S, Kim H, Choi J, Ahn C, Kim J, Ko Y, Choi D, Hong M, Jang Y. Incidence, predictors, and outcomes of distal vessel expansion on follow‐up intravascular ultrasound after recanalization of chronic total occlusions using new‐generation drug‐eluting stents: Data from the CTO‐IVUS randomized trial. Catheter Cardiovasc Interv 2019; 95:154-164. [DOI: 10.1002/ccd.28461] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Revised: 05/30/2019] [Accepted: 08/06/2019] [Indexed: 11/11/2022]
Affiliation(s)
- Sung‐Jin Hong
- Division of CardiologySeverance Cardiovascular Hospital, Yonsei University College of Medicine Seoul South Korea
| | - Byeong‐Keuk Kim
- Division of CardiologySeverance Cardiovascular Hospital, Yonsei University College of Medicine Seoul South Korea
| | - Young‐Joo Kim
- Division of CardiologySeverance Cardiovascular Hospital, Yonsei University College of Medicine Seoul South Korea
| | - Seung‐Woon Rha
- Cardiovascular CenterKorea University Guro Hospital Seoul South Korea
| | - Seung‐Jin Lee
- Division of CardiologySoonchunhyang University Cheonan Hospital Cheonan South Korea
| | - Hee‐Yeol Kim
- Catholic University of Korea Bucheon St. Mary's Hospital Bucheon South Korea
| | - Jin‐Ho Choi
- Department of Medicine, Heart Vascular Stroke Institute, Samsung Medical CenterSungkyunkwan University School of Medicine Seoul South Korea
| | - Chul‐Min Ahn
- Division of CardiologySeverance Cardiovascular Hospital, Yonsei University College of Medicine Seoul South Korea
| | - Jung‐Sun Kim
- Division of CardiologySeverance Cardiovascular Hospital, Yonsei University College of Medicine Seoul South Korea
| | - Young‐Guk Ko
- Division of CardiologySeverance Cardiovascular Hospital, Yonsei University College of Medicine Seoul South Korea
| | - Doonghoon Choi
- Division of CardiologySeverance Cardiovascular Hospital, Yonsei University College of Medicine Seoul South Korea
| | - Myeong‐Ki Hong
- Division of CardiologySeverance Cardiovascular Hospital, Yonsei University College of Medicine Seoul South Korea
| | - Yangsoo Jang
- Division of CardiologySeverance Cardiovascular Hospital, Yonsei University College of Medicine Seoul South Korea
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