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https://www.readbyqxmd.com/read/28528430/risk-classification-of-highly-sensitive-troponin-i-predict-presence-of-vulnerable-plaque-assessed-by-dual-source-coronary-computed-tomography-angiography
#1
Ting Liu, Guan Wang, Peiling Li, Xu Dai
Patients presenting to the emergency department with acute chest pain, negative conventional troponin and electrocardiogram require serial testing to rule out acute coronary syndrome (ACS). We studied the association of highly sensitive troponin (hsTn) I with vulnerable plaque features as detected by coronary dual source computed tomography angiography (DSCTA) and determined whether hsTn I at the time of presentation combined with early DSCTA could improve classification of patients as high-risk or low risk for ACS...
May 20, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28525971/left-ventricular-mural-thrombus-and-dual-coronary-embolization-associated-with-hyperthyroid-cardiomyopathy-and-atrial-fibrillation-a-case-report
#2
Guohui Liu, Ping Yang, Yuquan He
BACKGROUND: The majority of acute myocardial infarction (AMI) events are caused by thrombotic occlusion of the coronary artery, secondary to atherosclerotic plaque erosion or rupture. However, coronary embolism (CE), while rare, is being increasingly recognized as an important cause of AMI. We present the case of a patient with multi-site coronary artery embolization associated with hyperthyroid-related cardiomyopathy and atrial fibrillation. CASE PRESENTATION: A 49-year-old female with a history of hyperthyroidism and atrial fibrillation (AF) was admitted to our hospital presenting with right upper limb pain and swelling...
May 19, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28522312/intravascular-imaging-in-cardiovascular-ageing
#3
REVIEW
Christos V Bourantas, Tom Crake, Yao-Jun Zhang, Mick Ozkor, Javed Ahmed, Hector M Garcia-Garcia, Patrick W Serruys
Ageing is related to complex molecular, inflammatory and biochemical changes that affect coronary pathology and often lead to coronary artery disease and cardiovascular events. Intravascular imaging is considered as the ideal technique to study coronary plaque morphology and assess its burden. Over the recent years several studies have been performed that investigated the association between pathophysiological mechanisms that promote vascular ageing and plaque morphology. In addition, several reports have compared plaque pathology in different age groups and a few studies included serial intravascular imaging to assess changes in the atheroma burden and compositional characteristics of the plaque...
May 15, 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/28521932/discordance-between-fractional-flow-reserve-and-coronary-flow-reserve-insights-from-intracoronary-imaging-and-physiological%C3%A2-assessment
#4
Sung Gyun Ahn, Jon Suh, Olivia Y Hung, Hee Su Lee, Yasir H Bouchi, Wenjie Zeng, Rounak Gandhi, Parham Eshtehardi, Bill D Gogas, Habib Samady
OBJECTIVES: The aim of this study was to investigate the epicardial and microvascular substrates associated with discordances between fractional flow reserve (FFR) and coronary flow reserve (CFR) values. BACKGROUND: Discordances between FFR and CFR remain poorly characterized. METHODS: FFR, hyperemic stenosis resistance (HSR), and intravascular ultrasound were performed as indexes of epicardial function and CFR and hyperemic microvascular resistance (HMR) as measures of microvascular function in 94 patients with moderate coronary stenosis...
May 22, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28521888/clinical-significance-of-lipid-rich-plaque%C3%A2-detected-by-optical-coherence%C3%A2-tomography-a%C3%A2-4-year-follow-up-study
#5
Lei Xing, Takumi Higuma, Zhao Wang, Aaron D Aguirre, Kyoichi Mizuno, Masamichi Takano, Harold L Dauerman, Seung-Jung Park, Yangsoo Jang, Chong-Jin Kim, Soo-Joong Kim, So-Yeon Choi, Tomonori Itoh, Shiro Uemura, Harry Lowe, Darren L Walters, Peter Barlis, Stephen Lee, Amir Lerman, Catalin Toma, Jack Wei Chieh Tan, Erika Yamamoto, Krzysztof Bryniarski, Jiannan Dai, Thomas Zanchin, Shaosong Zhang, Bo Yu, Hang Lee, James Fujimoto, Valentin Fuster, Ik-Kyung Jang
BACKGROUND: Lipid-rich plaque (LRP) is thought to be a precursor to cardiac events. However, its clinical significance in coronary arteries has never been systematically investigated. OBJECTIVES: This study investigated the prevalence and clinical significance of LRP in the nonculprit region of the target vessel in patients undergoing percutaneous coronary intervention (PCI). METHODS: The study included 1,474 patients from 20 sites across 6 countries undergoing PCI, who had optical coherence tomography (OCT) imaging of the target vessel...
May 23, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28515742/the-use-of-intraoperative-epiaortic-ultrasonography-in-monitoring-patients-over-75-years-old-treated-with-aortic-valve-replacement
#6
Tomasz Niklewski, Michał Zembala, Dariusz Puszczewicz, Paweł Nadziakiewicz, Wojciech Karolak, Marian Zembala
INTRODUCTION: Epiaortic ultrasound scanning (EAS) extended the use of ultrasound to the intraoperative diagnosis of aortic pathology. Surgical palpation of the ascending aorta underestimates the presence and severity of atherosclerotic plaques. Epiaortic ultrasound scanning has been used as an adjunct to transesophageal echocardiography (TEE) or as a primary direct diagnostic tool for imaging the ascending aorta as well as the aortic arch, which gained prominence as part of a multipronged intraoperative strategy to reduce atherosclerotic emboli...
March 2017: Kardiochirurgia i Torakochirurgia Polska, Polish Journal of Cardio-Thoracic Surgery
https://www.readbyqxmd.com/read/28515369/effect-of-reverse-vessel-remodeling-on-regression-of-coronary-atherosclerosis-in-patients-treated-with-aggressive-lipid-and-blood-pressure-lowering-therapy%C3%A3-insight-from-million-study
#7
Tadatsugu Gamou, Kenji Sakata, Hayato Tada, Tetsuo Konno, Kenshi Hayashi, Hidekazu Ino, Masakazu Yamagishi, Masa-Aki Kawashiri
BACKGROUND: The MILLION study, a prospective randomized multicenter study, revealed that lipid and blood pressure (BP)-lowering therapy resulted in regression of coronary plaque as determined by intravascular ultrasound (IVUS). In the present study we performed additional analysis to investigate the associated factors with regression of coronary plaque.Methods and Results:We investigated serial 3D IVUS images from 68 patients in the MILLION study. Standard IVUS parameters were assessed at both baseline and follow-up (18-24 months)...
May 17, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28504113/prognosis-of-spontaneous-coronary-artery-dissection-treated-by-percutaneous-coronary-intervention-with-optical-coherence-tomography
#8
Tsuyoshi Nishiguchi, Atsushi Tanaka, Akira Taruya, Yuichi Ozaki, Mai Nakai, Ikuko Teraguchi, Shingo Ota, Akio Kuroi, Takeyoshi Kameyama, Takashi Yamano, Tomoyuki Yamaguchi, Yoshiki Matsuo, Yasushi Ino, Takashi Kubo, Takeshi Hozumi, Takashi Akasaka
BACKGROUND: Although about half of patients with spontaneous coronary artery dissection (SCAD) face ongoing necrosis, conservative therapy is recommended due to a high complication rate in angiography-guided percutaneous coronary intervention (PCI). The aim of this study was to investigate clinical outcomes of SCAD treated by optical coherence tomography (OCT)-guided PCI. METHODS: This study consisted of consecutive 306 patients with acute coronary syndrome (ACS) who underwent OCT-guided PCI...
May 11, 2017: Journal of Cardiology
https://www.readbyqxmd.com/read/28502488/lipoprotein-associated-phospholipase-a2-and-its-relationship-with-markers-of-subclinical-cardiovascular-disease-a-systematic-review
#9
REVIEW
Adnan Younus, Choudhry Humayun, Rameez Ahmad, Oluseye Ogunmoroti, Yugandhar Kandimalla, Muhammad Aziz, Rehan Malik, Aisha Rasool Saand, Cyndi Valdes, Rohan Badlani, Muhammad Amir Younus, Shozab S Ali, Ye Chen, Khurram Nasir
BACKGROUND: Lipoprotein-associated phospholipase A2 (Lp-PLA2) is an enzyme that exhibits proinflammatory properties and has been associated with subclinical cardiovascular disease. OBJECTIVE: The relationship between Lp-PLA2 and subclinical CVD remains unclear. The goal of this systematic review was to clarify this relationship. METHODS: An extensive literature search of the MEDLINE database using Ovid and PubMed was performed. From an initial search of 444 articles, 13 met the inclusion and exclusion criteria and were included in the review...
March 2017: Journal of Clinical Lipidology
https://www.readbyqxmd.com/read/28500539/hybrid-pet-ct-and-pet-mri-imaging-of-vulnerable-coronary-plaque-and-myocardial-scar-tissue-in-acute-myocardial-infarction
#10
Stephanie Marchesseau, Aruni Seneviratna, A Therese Sjöholm, Daphne Liang Qin, Jamie X M Ho, Derek J Hausenloy, David W Townsend, A Mark Richards, John J Totman, Mark Y Y Chan
BACKGROUND: Following an acute coronary syndrome, combined CT and PET with (18)F-NaF can identify coronary atherosclerotic plaques that have ruptured or eroded. However, the processes behind (18)F-NaF uptake in vulnerable plaques remain unclear. METHODS AND RESULTS: Ten patients with STEMI were scanned after (18)F-NaF injection, for 75 minutes in a Siemens PET/MR scanner using delayed enhancement (LGE). They were then scanned in a Siemens PET/CT scanner for 10 minutes...
May 12, 2017: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/28496557/in-stent-restenosis-due-to-stent-recoil-after-third-generation-drug-eluting-stent-implantation
#11
Yuta Kato, Atsushi Iwata, Masayuki Nakamura, Shin-Ichiro Miura, Keijiro Saku
A 72-year-old man with a heavily calcified coronary lesion underwent percutaneous coronary intervention (PCI) using a third-generation drug-eluting stent (DES) with thin stent struts. Two months after the PCI, in-stent restenosis due to stent recoil (SR) occurred. An intravascular ultrasound (IVUS) revealed deformed stent struts and heavily calcified coronary plaque. The SR probably occurred due to persistent vessel compression as a result of heavily calcified coronary plaque. We should consider using a DES with thick stent struts rather than a third-generation DES with thin stent struts in patients with a heavily calcified coronary lesion...
June 2017: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/28496416/lysophosphatidic-acid-is-associated-with-atherosclerotic-plaque-instability-by-regulating-nf-%C3%AE%C2%BAb-dependent-matrix-metalloproteinase-9-expression-via-lpa2-in-macrophages
#12
Chun Gu, Fang Wang, Zhenwen Zhao, Hongyue Wang, Xiangfeng Cong, Xi Chen
Lysophosphatidic acid (LPA), one of the simplest phospholipid signaling molecules, participates in formation and disruption of atherosclerotic plaque. Matrix metalloproteinases (MMPs) contribute to atherosclerotic plaque rupture by involving in extracellular matrix (ECM) degradation and then thinning fibrous cap. Our previous study demonstrated that macrophage-derived MMP-9 was associated with coronary plaque instability, but the relationship between LPA and MMP-9 remains unclear. The present work therefore aimed at elucidating association between LPA and MMP-9 and the regulation mechanism of LPA on MMP-9 in macrophages...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28493931/asymptomatic-carotid-artery-stenosis-and-retinal-nerve-fiber-layer-thickness-a-community-based-observational-study
#13
Dandan Wang, Yang Li, Yong Zhou, Cheng Jin, Qi Zhao, Anxin Wang, Shouling Wu, Wen Bin Wei, Xingquan Zhao, Jost B Jonas
PURPOSE: To examine whether an abnormally thin retinal nerve fiber layer (RNFL) is associated with cerebrovascular insufficiency. DESIGN: Community-based study. METHODS: The Asymptomatic Polyvascular Abnormalities in Community Study included Chinese aged 40+ years and without histories of cerebrovascular incidents or coronary heart disease. Using transcranial Doppler and carotid duplex ultrasound examination, we assessed presence and degree of an intracranial arterial stenosis (ICAS) and extracranial carotid arterial stenosis (ECAS) and we measured the RNFL thickness by spectral-domain optical coherence tomography...
2017: PloS One
https://www.readbyqxmd.com/read/28492564/-heart-rate-as-a-therapeutic-target-after-acute-coronary-syndrome-and-in-chronic-coronary-heart-disease
#14
Marco Ambrosetti, Giuseppe Scardina, Giuseppe Favretto, Pier Luigi Temporelli, Pompilio Massimo Faggiano, Cesare Greco, Roberto Franco Pedretti
For patients with stable coronary artery disease (SCAD), either after hospitalization for acute cardiac events or in the chronic phase, comprehensive treatment programs should be devoted to: (i) reducing mortality and major adverse cardiovascular events, (ii) reducing the ischemic burden and related symptoms, and (iii) increasing exercise capacity and quality of life.Heart rate (HR) has demonstrated to have prognostic value and patients beyond the limit of 70 bpm display increased risk of all the above adverse outcomes, even after adjustment for parameters such as the extension of myocardial infarction and the presence of heart failure...
March 2017: Giornale Italiano di Cardiologia
https://www.readbyqxmd.com/read/28487327/resistant-atherosclerosis-the-need-for-monitoring-of-plaque-burden
#15
J David Spence, Karla Solo
BACKGROUND AND PURPOSE: Recent studies indicate that patients with lower levels of low-density lipoprotein cholesterol (LDL-C) have greater regression of coronary plaque. In 2002, we found that carotid plaque progression doubled cardiovascular risk. In 2003, we therefore implemented a new approach, treating arteries instead of risk factors. Since then, we have seen many patients with carotid plaque progression despite very low levels of LDL-C, suggesting other causes of atherosclerosis...
May 9, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28487316/atheroma-susceptible-to-thrombosis-exhibit-impaired-endothelial-permeability-in-vivo-as-assessed-by-nanoparticle-based-fluorescence-molecular-imaging
#16
Ashley F Stein-Merlob, Tetsuya Hara, Jason R McCarthy, Adam Mauskapf, James A Hamilton, Vasilis Ntziachristos, Peter Libby, Farouc A Jaffer
BACKGROUND: The role of local alterations in endothelial functional integrity in atherosclerosis remains incompletely understood. This study used nanoparticle-enhanced optical molecular imaging to probe in vivo mechanisms involving impaired endothelial barrier function in experimental atherothrombosis. METHODS AND RESULTS: Atherosclerosis was induced in rabbits (n=31) using aortic balloon injury and high-cholesterol diet. Rabbits received ultrasmall superparamagnetic iron oxide nanoparticles (CLIO) derivatized with a near-infrared fluorophore (CyAm7) 24 hours before near-infrared fluorescence imaging...
May 2017: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28483945/early-detection-and-treatment-of-the-vulnerable-coronary-plaque-can-we-prevent-acute-coronary-syndromes
#17
Michiel J Bom, Dirk J van der Heijden, Elvin Kedhi, Jan van der Heyden, Martijn Meuwissen, Paul Knaapen, Stefan A J Timmer, Niels van Royen
Early identification and treatment of the vulnerable plaque, that is, a coronary artery lesion with a high likelihood of rupture leading to an acute coronary syndrome, have gained great interest in the cardiovascular research field. Postmortem studies have identified clear morphological characteristics associated with plaque rupture. Recent advances in invasive and noninvasive coronary imaging techniques have empowered the clinician to identify suspected vulnerable plaques in vivo and paved the way for the evaluation of therapeutic agents targeted at reducing plaque vulnerability...
May 2017: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28483812/coronary-plaque-characterization-in-psoriasis-reveals-high-risk-features-which-improve-following-treatment-in-a-prospective-observational-study
#18
Joseph B Lerman, Aditya A Joshi, Abhishek Chaturvedi, Tsion M Aberra, Amit K Dey, Justin A Rodante, Taufiq Salahuddin, Jonathan H Chung, Anshuma Rana, Heather L Teague, Jashin J Wu, Martin P Playford, Benjamin N Lockshin, Marcus Y Chen, Veit Sandfort, David A Bluemke, Nehal N Mehta
Background -Psoriasis, a chronic inflammatory disease associated with an accelerated risk of MI, provides an ideal human model to study inflammatory atherogenesis in vivo We hypothesized that the increased cardiovascular risk observed in psoriasis would be partially attributable to an elevated subclinical coronary artery disease (CAD) burden composed of non-calcified plaques with high-risk features. However, inadequate efforts have been made to directly measure CAD in this vulnerable population. As such, we sought to compare total (TB) and non-calcified (NCB) coronary plaque burden, and high-risk plaque (HRP) prevalence, between psoriasis patients (n=105), hyperlipidemic patients eligible for statin therapy under NCEP-ATP III guidelines (n=100) who were ~10 years older, and non-psoriasis healthy volunteers (HV) (n=25)...
May 8, 2017: Circulation
https://www.readbyqxmd.com/read/28483581/prognostic-value-of-segment-involvement-score-compared-to-other-measures-of-coronary-atherosclerosis-by-computed-tomography-a-systematic-review-and-meta-analysis
#19
Chadi Ayoub, Fernanda Erthal, Mahmoud A Abdelsalam, M Hassan Murad, Zhen Wang, Patricia J Erwin, Graham S Hillis, Leonard Kritharides, Benjamin J W Chow
BACKGROUND: The segment involvement score (SIS) is a semiquantitative measure of the extent of atherosclerosis burden by coronary computed tomography angiography (CTA). We sought to evaluate by meta-analysis the prognostic value of SIS, and to compare it with other CTA measures of coronary artery disease (CAD). METHODS: Electronic databases from 1946 to January 2016 were searched. Studies reporting SIS, or an equivalent measure by coronary CTA, and clinical outcomes were included...
May 3, 2017: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/28482222/noninvasive-detection-of-increased-carotid-artery-temperature-in-patients-with-coronary-artery-disease-predicts-major-cardiovascular-events-at-one-year-results-from-a-prospective-multicenter-study
#20
Konstantinos Toutouzas, Georgios Benetos, Iosif Koutagiar, Nikolaos Barampoutis, Fotini Mitropoulou, Periklis Davlouros, Petros P Sfikakis, Dimitrios Alexopoulos, Christodoulos Stefanadis, Elias Siores, Dimitris Tousoulis
BACKGROUND AND AIMS: Limited prospective data have been reported regarding the impact of carotid inflammation on cardiovascular events in patients with coronary artery disease (CAD). Microwave radiometry (MWR) is a noninvasive, simple method that has been used for evaluation of carotid artery temperature which, when increased, predicts 'inflamed' plaques with vulnerable characteristics. We prospectively tested the hypothesis that increased carotid artery temperature predicts future cerebro- and cardiovascular events in patients with CAD...
April 23, 2017: Atherosclerosis
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