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https://www.readbyqxmd.com/read/28094123/myocardial-and-serum-galectin-3-expression-dynamics-marks-post-myocardial-infarction-cardiac-remodelling
#1
Umesh C Sharma, Wassim Mosleh, Milind R Chaudhari, Rujuta Katkar, Brian Weil, Chris Evelo, Thomas R Cimato, Saraswati Pokharel, W Matthijs Blankesteijn, Gen Suzuki
BACKGROUND: Acute myocardial infarction (MI) causes significant changes in cardiac morphology and function. Galectin-3 is a novel and potentially therapeutically important mediator of cardiac remodelling. Myocardial and serum galectin-3 expression dynamics in response to the early cardiovascular outcomes after acute MI are not fully elucidated. METHODS: We first performed a comprehensive longitudinal microarray analyses in mice after acute MI. We then measured the serum levels of galectin-3 in a translational porcine model of coronary microembolism-induced post-ischaemic cardiac remodelling...
December 19, 2016: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28089413/relation-of-st-segment-elevation-myocardial-infarction-to-daily-ambient-temperature-and-air-pollutant-levels-in-a-japanese-nationwide-percutaneous-coronary-intervention-registry
#2
Kyohei Yamaji, Shun Kohsaka, Takeshi Morimoto, Kenshi Fujii, Tetsuya Amano, Shiro Uemura, Takashi Akasaka, Kazushige Kadota, Masato Nakamura, Takeshi Kimura
Effects of daily fluctuation of ambient temperature and concentrations of air pollutants on acute cardiovascular events have not been well studied. From January 2011 to December 2012, a total of 56,863 consecutive ST-segment elevation myocardial infarction (STEMI) patients who underwent primary percutaneous coronary intervention were registered from 929 institutes with median interinstitutional distance of 2.6 km. We constructed generalized linear mixed models in which the presence or absence of patients with STEMI per day per institute was included as a binomial response variable, with daily meteorologic and environmental data obtained from their respective observatories nearest to the institutes (median distance of 9...
December 18, 2016: American Journal of Cardiology
https://www.readbyqxmd.com/read/28065445/colin-trial-value-of-colchicine-in-the-treatment-of-patients-with-acute-myocardial-infarction-and-inflammatory-response
#3
Mariama Akodad, Benoît Lattuca, Nicolas Nagot, Vera Georgescu, Mathilde Buisson, Jean-Paul Cristol, Florence Leclercq, Jean-Christophe Macia, Richard Gervasoni, Thien-Tri Cung, Stéphane Cade, Frédéric Cransac, Jessica Labour, Anne-Marie Dupuy, François Roubille
BACKGROUND: Inflammation is involved during acute myocardial infarction, and could be an interesting target to prevent ischaemia-reperfusion injuries. Colchicine, known for its pleiotropic anti-inflammatory effects, could decrease systemic inflammation in this context. AIMS: To evaluate the impact of colchicine on inflammation in patients admitted for ST-segment elevation myocardial infarction (STEMI). METHODS: All patients admitted for STEMI with one of the main coronary arteries occluded, and successfully treated with percutaneous coronary intervention, were included consecutively...
January 3, 2017: Archives of Cardiovascular Diseases
https://www.readbyqxmd.com/read/28006953/lymphocyte-communication-in-myocardial-ischemia-reperfusion-injury
#4
Stephen E Boag, Emanuele Andreano, Ioakim Spyridopoulos
SIGNIFICANCE: Myocardial ischaemia/reperfusion (I/R) is an important complication of reperfusion therapy for myocardial infarction. It is a complex process involving metabolic and immunological factors. To date no effective treatment has been identified. Recent Advances: Previous research has focused on the role of innate immune cells in I/R injury. In recent years increasing evidence has accumulated for an important role for adaptive immune cells, particularly T lymphocytes. Data from ST elevation myocardial infarction (STEMI) patients has identified prognostic significance for lymphocyte counts, particularly post-reperfusion lymphopenia...
December 23, 2016: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/28004756/alteration-of-platelet-gpvi-signaling-in-st-elevation-myocardial-infarction-patients-demonstrated-by-a-combination-of-proteomic-biochemical-and-functional-approaches
#5
Paula Vélez, Raymundo Ocaranza-Sánchez, Diego López-Otero, Lilian Grigorian-Shamagian, Isaac Rosa, Esteban Guitián, José María García-Acuña, José Ramón González-Juanatey, Ángel García
The platelet-specific collagen receptor glycoprotein VI (GPVI) is critical for the formation of arterial thrombosis in vivo. We analyzed GPVI-activated platelets from ST-elevation myocardial infarction (STEMI) patients and matched stable coronary artery disease (SCAD) controls in order to provide novel clues on the degree of involvement of GPVI signaling in the acute event. Firstly, platelets were isolated from systemic venous blood and activated with the GPVI specific agonist CRP (collagen-related peptide)...
December 22, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27968766/indications-for-fibrinolysis-in-patients-with-st-segment-elevation-myocardial-infarction-from-guidelines-to-practice
#6
C Boivineau, L Orion, J Dimet, E Boiffard
BACKGROUND: European guidelines on managing ST segment elevation myocardial infarction (STEMI) during the first 12hours recommend fibrinolysis when the time elapsing between the first medical contact and balloon time (FMCBT) is more than 120minutes. AIM: To assess the real-life clinical efficacy of guidelines on fibrinolysis in managing STEMI and identify obstacles to their everyday implementation. METHODS: An observational study based on a permanent registry of reperfusion strategies and timing among patients treated in a French general hospital for STEMI with chest pain lasting for less than two hours...
November 2016: Annales de Cardiologie et D'angéiologie
https://www.readbyqxmd.com/read/27921405/thrombolytic-therapy-up-regulates-inflammatory-mediators-compared-to-percutaneous-coronary-intervention-pci
#7
Alireza Garjani, Bahram Sohrabi, Ali Akbar Movassaghpour, Sina Andalib, Mehriar Shokri, Bahar Taherkhanchi, Bahador Bagheri
The important role of reperfusion therapies in the treatment of acute myocardial infarction is well documented. However, reperfusion therapies can initiate inflammatory response and may damage the myocardium. The purpose of current study was to compare the effects of percutaneous coronary intervention and thrombolytic therapy on inflammatory markers in the setting of ST elevation myocardial infarction (STEMI). Eighty three patients with STEMI were enrolled in this study. 40 patients underwent percutaneous coronary intervention (PCI), and 43 patients received streptokinase (1...
August 2016: Iranian Journal of Allergy, Asthma, and Immunology
https://www.readbyqxmd.com/read/27866132/a-tool-for-predicting-the-outcome-of-reperfusion-in-st-elevation-myocardial-infarction-using-age-thrombotic-burden-and-index-of-microcirculatory-resistance-ati-score
#8
Giovanni Luigi De Maria, Gregor Fahrni, Mohammad Alkhalil, Florim Cuculi, Sam Dawkins, Mathias Wolfrum, Robin P Choudhury, John C Forfar, Bernard D Prendergast, Tuncay Yetgin, Robert Jan van Geuns, Matteo Tebaldi, Keith M Channon, Rajesh K Kharbanda, Peter M Rothwell, Marco Valgimigli, Adrian P Banning
AIMS: Restoration of effective myocardial reperfusion by primary percutaneous coronary intervention (PPCI) in patients with ST-elevation myocardial infarction is difficult to predict. A method to assess the likelihood of a suboptimal response to conventional pharmacomechanical therapies could be beneficial. We aimed to derive and validate a scoring system that can be used acutely at the time of coronary reopening to predict the likelihood of downstream microvascular impairment in patients with STEMI...
November 20, 2016: EuroIntervention
https://www.readbyqxmd.com/read/27821850/a-comparative-metabolomics-approach-reveals-early-biomarkers-for-metabolic-response-to-acute-myocardial-infarction
#9
Sara E Ali, Mohamed A Farag, Paul Holvoet, Rasha S Hanafi, Mohamed Z Gad
Discovery of novel biomarkers is critical for early diagnosis of acute coronary syndrome (ACS). Serum metabolite profiling of ST-elevation myocardial infarction (STEMI), unstable angina (UA) and healthy controls was performed using gas chromatography mass spectrometry (GC/MS), solid-phase microextraction coupled to gas chromatography mass spectrometry (SPME-GC/MS) and nuclear magnetic resonance ((1)H-NMR). Multivariate data analysis revealed a metabolic signature that could robustly discriminate STEMI patients from both healthy controls and UA patients...
November 8, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27756477/pooled-analysis-comparing-the-efficacy-of-intracoronary-versus-intravenous-abciximab-in-smokers-versus-nonsmokers-undergoing-primary-percutaneous-coronary-revascularization-for-acute-st-elevation-myocardial-infarction
#10
Raffaele Piccolo, Gennaro Galasso, Ingo Eitel, Alberto Dominguez-Rodriguez, Allan Zeeberg Iversen, Youlan L Gu, Pedro Abreu-Gonzalez, Bart J G L de Smet, Giovanni Esposito, Stephan Windecker, Holger Thiele, Federico Piscione
Cigarette smokers with ST-segment elevation myocardial infarction (STEMI) may present different response to potent antithrombotic therapy compared to nonsmokers. We assessed the impact of smoking status and intracoronary abciximab in patients with STEMI undergoing primary percutaneous coronary intervention (PCI). We pooled data from 5 randomized trials comparing intracoronary versus intravenous abciximab bolus in patients undergoing primary PCI. The primary end point was the composite of death or reinfarction at a mean follow-up of 292 ± 138 days...
September 13, 2016: American Journal of Cardiology
https://www.readbyqxmd.com/read/27749762/infectious-complications-and-immune-inflammatory-response-in-cardiogenic-shock-patients-a-prospective-observational-study
#11
Jiri Parenica, Jiri Jarkovsky, Jan Malaska, Alexandre Mebazaa, Jana Gottwaldova, Katerina Helanova, Jiri Litzman, Milan Dastych, Josef Tomandl, Jindrich Spinar, Ludmila Dostalova, Petr Lokaj, Marie Tomandlova, Monika Goldergova Pavkova, Pavel Sevcik, Matthieu Legrand
INTRODUCTION: Patients with cardiogenic shock (CS) are at a high risk of developing infectious complications; however, their early detection is difficult, mainly due to a frequently occurring noninfectious inflammatory response, which accompanies an extensive myocardial infarction (MI) or a postcardiac arrest syndrome. The goal of our prospective study was to describe infectious complications in CS and the immune/inflammatory response based on a serial measurement of several blood-based inflammatory biomarkers...
February 2017: Shock
https://www.readbyqxmd.com/read/27543480/no-reflow-phenomenon-in-percutaneous-coronary-interventions-in-st-segment-elevation-myocardial-infarction
#12
REVIEW
Sanjiv Gupta, Madan Mohan Gupta
Percutaneous coronary intervention (PCI) is effective in opening the infarct related artery and restoring thrombolysis in myocardial infarction flow 3 (TIMI-flow 3) in large majority of ST-elevation myocardial infarction (STEMI). However there remain a small but significant proportion of patients, who continue to manifest diminished myocardial reperfusion despite successful opening of the obstructed epicardial artery. This phenomenon is called no-reflow. Clinically it manifests with recurrence of chest pain and dyspnea and may progress to cardiogenic shock, cardiac arrest, serious arrhythmias and acute heart failure...
July 2016: Indian Heart Journal
https://www.readbyqxmd.com/read/27543440/doppler-echocardiographic-myocardial-stunning-index-predicts-recovery-of-left-ventricular-systolic-function-after-primary-percutaneous-coronary-intervention
#13
Dawod Sharif, Wisam Matanis, Amal Sharif-Rasslan, Uri Rosenschein
BACKGROUND: Myocardial stunning is responsible for partially reversible left ventricular (LV) systolic dysfunction after successful primary percutaneous coronary intervention (PPCI) in patients with acute ST-elevation myocardial infarction (STEMI). AIM: To test the hypothesis that early coronary blood flow (CBF) to LV systolic function ratios, as an equivalent to LV stunning index (SI), predict recovery of LV systolic function after PPCI in patients with acute STEMI...
October 2016: Echocardiography
https://www.readbyqxmd.com/read/27537567/mir-22-contributes-to-the-pathogenesis-of-patients-with-coronary-artery-disease-by-targeting-mcp-1-an-observational-study
#14
Bairong Chen, Liyun Luo, Weiping Zhu, Xiaoliang Wei, Songbiao Li, Yin Huang, Mao Liu, Xiufang Lin
The aim of this study is to determine miR-22 expression levels in peripheral blood mononuclear cells (PBMCs) of patients with coronary artery disease (CAD) and to investigate whether MCP-1 expression is regulated by miR-22. miR-22 expression in PBMCs from 60 CAD patients including stable angina pectoris (SAP) (n = 29), unstable angina pectoris (UAP) or non-ST elevation myocardial infarction (NSTEMI) (n = 17), or ST-elevation MI (STEMI) (n = 14) and 20 non-CAD subjects by real-time polymerase chain reaction (qRT-PCR)...
August 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27513259/long-term-assessment-of-coronary-care-unit-patient-profile-and-outcomes-analyses-of-the-12-years-patient-records
#15
Selami Doğan, Hüseyin Dursun, Hüseyin Can, Hülya Ellidokuz, Dayimi Kaya
BACKGROUND/AIM: The aim of this study was to determine the patient profile, treatment, and outcomes of a coronary care unit (CCU) by retrospective screening of 12-year patient records. MATERIALS AND METHODS: The data of 13,463 patients admitted to the CCU of a tertiary referral hospital between 1 January 1997 and 30 June 2008 were collected. The patients were assessed with respect to demographics, admission diagnosis, treatment, and outcomes. RESULTS: The mean age of patients was 61 ± 13 years (66...
2016: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/27477801/cardiac-time-intervals-by-tissue-doppler-imaging-m-mode-echocardiography-reproducibility-reference-values-association-with-clinical-characteristics-and-prognostic-implications
#16
Tor Biering-Sørensen
BACKGROUND: The preservation of normal cardiac time intervals is intimately related to normal cardiac physiology and function. In the ailing myocardium, the cardiac time intervals will change during disease progression. As left ventricular (LV) systolic function deteriorates, the time it takes for myocardial myocytes to achieve an LV pressure equal to that of aorta increases, resulting in a prolongation of the isovolumic contraction time (IVCT). Furthermore, the ability of myocardial myocytes to maintain the LV pressure decreases, resulting in reduction in the ejection time (ET)...
August 2016: Danish Medical Journal
https://www.readbyqxmd.com/read/27465005/a-novel-survey-tool-to-quantify-the-degree-and-duration-of-stemi-regionalization-across-california
#17
Ivan C Rokos, Karl Sporer, Paul B Savino, Mary P Mercer, Selinda S Shontz, Sarah Sabbagh, Renee Y Hsia
INTRODUCTION: California has been a global leader in regionalization efforts for time-critical medical conditions. A total of 33 local emergency medical service agencies (LEMSAs) exist, providing an organized EMS framework across the state for almost 40 years. We sought to develop a survey tool to quantify the degree and duration of ST-elevation myocardial infarction (STEMI) regionalization over the last decade in California. METHODS: The project started with the development of an 8-question survey tool via a multi-disciplinary expert consensus process...
September 2016: Critical Pathways in Cardiology
https://www.readbyqxmd.com/read/27386796/immediate-response-to-prasugrel-loading-in-patients-with-st-elevation-myocardial-infarction-predictors-and-outcome
#18
Edward Koifman, Roy Beigel, Romana Herscovici, Paul Fefer, Nurit Rozenberg, Avi Sabbag, Yitschak Biton, Amit Segev, Michael Shechter, Elad Asher, Shlomi Matetzky
INTRODUCTION: Information regarding immediate response to novel P2Y12 inhibitors in ST-elevation myocardial infarction (STEMI) is scarce and has been associated with adequate reperfusion. Recent studies have shown that the onset of anti-platelet effects of novel P2Y12 inhibitors in patients with STEMI might be slower and more variable than in stable coronary syndrome. We aimed to assess the predictors and significance of immediate platelet response to prasugrel loading in STEMI. METHODS: Platelet aggregation (PA) was prospectively evaluated in STEMI patients upon prasugrel loading and at primary percutaneous coronary intervention (PPCI)...
August 2016: Thrombosis Research
https://www.readbyqxmd.com/read/27368743/imaging-diagnoses-and-outcome-in-patients-presenting-for-primary-angioplasty-but-no-obstructive-coronary-artery-disease
#19
Tarun K Mittal, Luise Reichmuth, Ben Ariff, Praveen P G Rao, Aigul Baltabaeva, Shelley Rahman-Haley, Tito Kabir, Joyce Wong, Miles Dalby
OBJECTIVE: A proportion of patients with suspected ST-elevation myocardial infarction (STEMI) presenting for primary percutaneous coronary intervention (PPCI) do not have obstructive coronary disease and other conditions may be responsible for their symptoms and ECG changes. In this study, we set out to determine the prevalence and aetiology of alternative diagnoses in a large PPCI cohort as determined with multimodality imaging and their outcome. METHODS: From 2009 to 2012, 5238 patients with suspected STEMI were referred for consideration of PPCI...
November 1, 2016: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/27324144/temporal-changes-in-biomarkers-and-their-relationships-to-reperfusion-and-to-clinical-outcomes-among-patients-with-st-segment-elevation-myocardial-infarction
#20
Sean van Diepen, Wendimagegn G Alemayehu, Yinggan Zheng, Pierre Theroux, L Kristin Newby, Kenneth W Mahaffey, Christopher B Granger, Paul W Armstrong
Coronary plaque rupture mediating acute ST segment elevation myocardial infarction (STEMI) is associated with a systemic inflammatory response. Whether early temporal changes in inflammatory biomarkers are associated with angiographic and electrocardiographic markers of reperfusion and subsequent clinical outcomes is unclear. In the APEX-AMI biomarker substudy, 376 patients with STEMI had inflammatory biomarkers measured at the time of hospital presentation and 24 h later. The primary outcome was the 90-day composite of death, shock, or heart failure...
October 2016: Journal of Thrombosis and Thrombolysis
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