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Stemi response

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https://www.readbyqxmd.com/read/28889769/orsiro-cobalt-chromium-sirolimus-eluting-stent-present-and-future-perspectives
#1
Juan F Iglesias, Marco Roffi, Sophie Degrauwe, Gioel Gabrio Secco, Adel Aminian, Stephan Windecker, Thomas Pilgrim
New-generation drug-eluting stents (DES) represent the current standard of care in patients undergoing percutaneous coronary intervention (PCI). Biodegr adable polymer DES (BP-DES) were recently developed to overcome current limitations of newer-generation durable polymer DES (DP-DES) attributed to sustained inflammatory responses induced by permanent polymers. The Orsiro DES (Biotronik AG, Bülach, Switzerland) is a novel thin-strut cobalt-chromium sirolimus-eluting stent with biodegradable polymer that features some of the latest developments in DES technology...
September 11, 2017: Expert Review of Medical Devices
https://www.readbyqxmd.com/read/28882939/wasp-sting-induced-stemi-with-complete-coronary-artery-occlusion-a-case-of-kounis-syndrome
#2
Benjamin Cross, Tawfiqur Rahman Choudhury, Mark Hindle, Gavin Galasko
A 45-year-old previously healthy man with minimal coronary artery disease on imaging presented with an acute MI after sustaining a wasp sting following previous non-eventful exposures throughout his life. This is the first case of Kounis syndrome with optical coherence tomography imaging and proven IgE wasp venom hypersensitivity. The Hymenoptera venom is composed of allergenic proteins and vasoactive amines which are responsible for venom toxicity. This patient also has a history of atopy giving a predisposition for developing IgE-mediated allergic reactions...
September 7, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28877606/discordance-between-vasp-phosphorylation-and-platelet-aggregation-in-defining-high-on-clopidogrel-platelet-reactivity-after-st-segment-elevation-myocardial-infarction
#3
Jing Sun, Guo-Hong Yang, Jun-Xiang Liu, Xin-Lin Liu, Yong-Qiang Ma, Rui-Yi Lu, Ying-Ying Zhang, Shao-Bo Chen, Ji-Hong Zhao, Wen-Jie Ji, Xin Zhou, Yu-Ming Li
To investigate potential clinical characteristics associated with discordance between platelet vasodilator-stimulated phosphoprotein phosphorylation (VASP-P) flow cytometry (FCM) assay and light transmission aggregometry (LTA) in defining high on-clopidogrel platelet reactivity (HPR) after ST-segment elevation myocardial infarction (STEMI). In this study, platelet responsiveness was measured by the above 2 methods simultaneously on day 1 and on day 6 of STEMI onset in 90 consecutive patients who underwent primary percutaneous coronary intervention...
January 1, 2017: Clinical and Applied Thrombosis/hemostasis
https://www.readbyqxmd.com/read/28861274/long-term-left-ventricular-remodelling-after-revascularisation-for-st-segment-elevation-myocardial-infarction-as-assessed-by-cardiac-magnetic-resonance-imaging
#4
Mariella Ecj Hassell, Wieneke Vlastra, Lourens Robbers, Alexander Hirsch, Robin Nijveldt, Jan Gp Tijssen, Albert C van Rossum, Felix Zijlstra, Jan J Piek, Ronak Delewi
OBJECTIVE: Left ventricular remodelling following a ST-segment elevated myocardial infarction (STEMI) is an adaptive response to maintain the cardiac output despite myocardial tissue loss. Limited studies have evaluated long term ventricular function using cardiac magnetic resonance imaging (CMR) after STEMI. METHODS: Study population consisted of 155 primary percutaneous coronary intervention treated first STEMI patients. CMR was performed at 4±2 days, 4 months and 24 months follow-up...
2017: Open Heart
https://www.readbyqxmd.com/read/28846805/an-exploration-of-the-association-between-ischemic-etiology-and-the-likelihood-of-heart-failure-hospitalization-following-cardiac-resynchronization-therapy
#5
Adam C Powell, Teresa L Rogstad, Uday U Deshmukh, Stephen E Price, Jeffrey D Simmons
BACKGROUND: Myocardial scarring resulting from cardiomyopathy with ischemic etiology may interfere with effective lead placement during implantation of multi-lead cardioverter-defibrillators for cardiac resynchronization therapy (CRT-D). Extensive scarring is known to be associated with poorer physiological and survival outcomes in patients who undergo CRT-D. HYPOTHESIS: Ischemic CRT-D recipients respond as well as nonischemic recipients, using hospital admission for heart failure (HF) as a measure of response...
August 28, 2017: Clinical Cardiology
https://www.readbyqxmd.com/read/28837209/erythrocyte-heme-proteins-and-stemi-implications-in-prognosis
#6
Judit Cubedo, Rosa Suades, Teresa Padro, Victoria Martin-Yuste, Manel Sabate-Tenas, Juan Cinca, Jordi Sans-Rosello, Alessandro Sionis, Lina Badimon
The role of erythrocytes in thrombus formation has been often neglected, but some studies have highlighted their active role in thrombotic events. Free-haemoglobin (Hb) has shown to induce oxidative-stress damage. Herein we have investigated the coordinated changes in heme-related proteins in patients with acute-coronary-syndromes (ACS), their association to ongoing thrombosis and their impact on patients' prognosis. The serum proteome of STEMI-patients (N=27) within the first 6h after event-onset and 3d after were compared to controls (N=60)...
July 27, 2017: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/28770092/association-of-admission-testosterone-level-with-st-segment-resolution-in-male-patients-with-st-segment-elevation-myocardial-infarction-undergoing-primary-percutaneous-coronary-intervention
#7
Ahmad Separham, Samad Ghaffari, Bahram Sohrabi, Naser Aslanabadi, Mozhgan Hadavi Bavil, Hasanali Lotfollahi
BACKGROUND: Low level of testosterone may be associated with cardiovascular diseases in men, as some evidence suggests a protective role for testosterone in cardiovascular system. Little is known about the possible role of serum testosterone in response to reperfusion therapy in ST-elevation myocardial infarction (STEMI) and its relationship with ST-segment recovery. The present study was conducted to evaluate the association of serum testosterone levels with ST-segment resolution following primary percutaneous coronary intervention (PPCI) in male patients with acute STEMI...
2017: Basic and Clinical Andrology
https://www.readbyqxmd.com/read/28752728/evaluation-of-on-clopidogrel-platelet-reactivity-overtime-syntax-score-genetic-polymorphisms-and-their-relationship-to-one-year-clinical-outcomes-in-stemi-patients-undergoing-pci
#8
Harsha V Erathi, Rajasekhar Durgaprasad, Vanajakshamma Velam, P V Sarma, Madhavi Rodda, C Kapil, Sreedhar N Kanavath
OBJECTIVES: To investigate the variability of On-clopidogrel platelet reactivity overtime, the association between HTPR, gene polymorphism and Syntax Score (SS) for risk prediction of MACE in patients with ST-Elevation Myocardial Infarction (STEMI) undergoing percutaneous coronary intervention (PCI). BACKGROUND: Platelet function testing may be used to optimize antiplatelet therapy in high risk patients, but identification of this subset of patients remains a challenge...
July 27, 2017: Minerva Cardioangiologica
https://www.readbyqxmd.com/read/28747040/glycative-and-oxidative-stress-are-associated-with-altered-thrombus-composition-in-diabetic-patients-with-st-elevation-myocardial-infarction
#9
Antonia Sambola, Marisol Ruiz-Meana, Ignasi Barba, Bruno García Del Blanco, José A Barrabés, G Y Lip, Úrsula Vilardosa, Sara Sansaloni, Pau Rello, David García-Dorado
BACKGROUND: The role of type 2 diabetes (T2DM) on composition of thrombus has not been fully characterized in patients with ST-elevation myocardial infarction (STEMI). AIMS: To elucidate the differences between diabetic and non-diabetic patients with STEMI in relation to the composition of coronary thrombus, and the potential association of these differences with glycated haemoglobin levels and markers of oxidative stress. METHODS: Intracoronary thrombi from consecutive thrombus aspiration procedures in STEMI patients, 25 diabetic and 28 non-diabetic, were analyzed by immunofluorescence with confocal microscopy...
September 15, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28712194/blocked-coronary-artery-due-to-coronary-spasm-treated-with-stent-insertion-a-sub-optimal-result
#10
Habib Rehman Khan, Sajid Aslam
Myocardial infarction (MI) is an extremely common cause of chest pain. MI can be acute with ST elevation (STEMI) or non-STEMI (NSTEMI). Coronary artery spasm can be severe enough to cause occlusion of the coronary arteries particularly with an exaggerated response in regions of coronary atheroma and plaque ulceration. It is not uncommon for coronary spasm to be mistaken with acute thrombotic occlusion of the coronary artery. We describe a case of a 42-year old man with known cardiac risk factors presents with chest pain for few hours to a tertiary centre hospital...
January 2017: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/28687712/dynamic-edematous-response-of-the-human-heart-to-myocardial-infarction-implications-for-assessing-myocardial-area-at-risk-and-salvage
#11
Rodrigo Fernández-Jiménez, Manuel Barreiro-Pérez, Ana Martin-García, Javier Sánchez-González, Jaume Agüero, Carlos Galán-Arriola, Jaime García-Prieto, Elena Díaz-Pelaez, Pedro Vara, Irene Martinez, Ivan Zamarro, Beatriz Garde, Javier Sanz, Valentin Fuster, Pedro L Sánchez, Borja Ibanez
Background -Clinical protocols aimed to characterize the post-myocardial infarction (MI) heart by cardiac magnetic resonance (CMR) need to be standardized to take account of dynamic biological phenomena evolving early after the index ischemic event. Here we evaluated the time-course of edema reaction in ST-segment elevation MI (STEMI) patients by CMR and assessed its implications for myocardium-at-risk (MaR) quantification both in patients and in a large animal model. Methods -A total of 16 anterior STEMI patients successfully treated by primary angioplasty and 16 matched controls were prospectively recruited...
July 7, 2017: Circulation
https://www.readbyqxmd.com/read/28667255/circulating-biomarkers-to-identify-responders-in-cardiac-cell-therapy
#12
Jesse V Jokerst, Nicholas Cauwenberghs, Tatiana Kuznetsova, Francois Haddad, Timothy Sweeney, Jiayi Hou, Yael Rosenberg-Hasson, Eric Zhao, Robert Schutt, Roberto Bolli, Jay H Traverse, Carl J Pepine, Timothy D Henry, Ivonne H Schulman, Lem Moyé, Doris A Taylor, Phillip C Yang
Bone marrow mononuclear cell (BM-MNC) therapy in ST-elevation acute myocardial infarction (STEMI) has no biological inclusion criteria. Here, we analyzed 63 biomarkers and cytokines in baseline plasma samples from 77 STEMI patients treated with BM-MNCs in the TIME and Late-TIME trials as well as 61 STEMI patients treated with placebo. Response to cell therapy was defined by changes in left ventricular ejection fraction, systolic/diastolic volumes, and wall motion indexes. We investigated the clinical value of circulating proteins in outcome prediction using significance testing, partial least squares discriminant analysis, and receiver operating characteristic (ROC) analysis...
June 30, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28641984/bi-objective-approach-for-placing-ground-and-air-ambulance-base-and-helipad-locations-in-order-to-optimize-ems-response
#13
Milad Shahriari, Ali Bozorgi-Amiri, Shayan Tavakoli, Abolghasem Yousefi-Babadi
Shortening the travel time of patient transfer has clinical implications for many conditions such as cardiac arrest, trauma, stroke and STEMI. As resources are often limited precise calculations are needed. In this paper we consider the location problem for both ground and aerial emergency medical services. Given the uncertainty of when patients are in need of prompt medical attention we consider these demand points to be uncertain. We consider various ways in which ground and helicopter ambulances can work together to make the whole process go faster...
June 15, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28618412/failed-downregulation-of-circulating-microrna-155-in-the-early-phase-after-st-elevation-myocardial-infarction-is-associated-with-adverse-left-ventricular-remodeling
#14
Sam C Latet, Paul L Van Herck, Marc J Claeys, Amaryllis H Van Craenenbroeck, Steven E Haine, Tom R Vandendriessche, Viviane O Van Hoof, Erik Fransen, Benedicte Y De Winter, Emeline M Van Craenenbroeck, Hein Heidbuchel, Christiaan J Vrints, Vicky Y Hoymans
BACKGROUND: MicroRNA are noncoding RNA that have a significant role in both inflammatory and cardiovascular diseases. AIMS: We aimed to assess whether the inflammation-related microRNA-155 is associated with the development of adverse left ventricular (LV) remodeling following ST elevation myocardial infarction (STEMI). METHODS: Peripheral blood samples were collected in the inflammatory (day 2), proliferative (day 5), and maturation phases (6 months) after STEMI (n = 20)...
2017: Cardiology
https://www.readbyqxmd.com/read/28596995/cardiac-myosin-binding-protein-c-autoantibodies-are-potential-early-indicators-of-cardiac-dysfunction-and-patient-outcome-in-acute-coronary-syndrome
#15
Thomas L Lynch, Diederik W D Kuster, Beverly Gonzalez, Neelam Balasubramanian, Nandini Nair, Sharlene Day, Jenna E Calvino, Yanli Tan, Christoph Liebetrau, Christian Troidl, Christian W Hamm, Ahmet Güçlü, Barbara McDonough, Ali J Marian, Jolanda van der Velden, Christine E Seidman, Gordon S Huggins, Sakthivel Sadayappan
The degradation and release of cardiac myosin binding protein-C (cMyBP-C) upon cardiac damage may stimulate an inflammatory response and autoantibody (AAb) production. We determined whether the presence of cMyBP-C-AAbs associated with adverse cardiac function in CVD patients. Importantly, cMyBP-C-AAbs were significantly detected in ACS patient sera upon arrival to the emergency department, particularly in STEMI patients. Patients positive for cMyBP-C-AAbs had a reduced LVEF and elevated levels of clinical biomarkers of MI...
April 2017: JACC. Basic to Translational Science
https://www.readbyqxmd.com/read/28595202/vitamin-d-is-a-predictor-of-st-segment-resolution-and-infarct-size-following-thrombolysis-in-patients-with-acute-st-elevation-myocardial-infarction
#16
Ahmad Separham, Bahram Sohrabi, Leili Pourafkari, Nazli Sepasi, Samad Ghaffari, Naser Aslanabadi, Nader D Nader
OBJECTIVE: Vitamin D (VitD) insufficiency is linked to various chronic conditions, including cardiovascular disease. Aim of the present study was to examine role of serum VitD in resolution of ST segment elevation (STR) in response to thrombolytic therapy following acute ST elevation myocardial infarction (STEMI). METHODS: VitD was measured prospectively in all consecutive patients who were admitted with STEMI and received thrombolysis during the calendar year of 2014...
June 2017: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/28551787/mechanistic-role-of-mptp-in-ischemia-reperfusion-injury
#17
REVIEW
Giampaolo Morciano, Massimo Bonora, Gianluca Campo, Giorgio Aquila, Paola Rizzo, Carlotta Giorgi, Mariusz R Wieckowski, Paolo Pinton
Acute myocardial infarction (MI) is a major cause of death and disability worldwide. The treatment of choice for reducing ischemic injury and limiting infarct size (IS) in patients with ST-segment elevation MI (STEMI) is timely and effective myocardial reperfusion via primary percutaneous coronary intervention (PCI). However, myocardial reperfusion itself may induce further cardiomyocyte death, a phenomenon known as reperfusion injury (RI). The opening of a large pore in the mitochondrial membrane, namely, the mitochondrial permeability transition pore (mPTP), is widely recognized as the final step of RI and is responsible for mitochondrial and cardiomyocyte death...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28489130/impact-of-coronary-intensive-care-unit-in-treatment-of-myocardial-infarction
#18
Marcia Cristina Todo, Carolina Marabesi Bergamasco, Paula Schmidt Azevedo, Marcos Ferreira Minicucci, Roberto Minoru Tanni Inoue, Marina Politi Okoshi, Sergio Rupp de Paiva, Leonardo Mamede Zornoff, Bertha Furlan Polegato
Introduction: The mortality rate attributed to ST-segment elevation myocardial infarction (STEMI) has decreased in the world. However, this disease is still responsible for high costs for health systems. Several factors could decrease mortality in these patients, including implementation of cardiac intensive care units (CICU). The aim of this study was to evaluate the effect of CICU implementation on prescribed recommended treatments and mortality 30 days after STEMI. Method: We performed a retrospective study with patients admitted to CICU between 2005 and 2006 (after group) and between 2000 and 2002, before CICU implementation (before group)...
March 2017: Revista da Associação Médica Brasileira
https://www.readbyqxmd.com/read/28433557/early-changes-of-left-ventricular-filling-pattern-after-reperfused-st-elevation-myocardial-infarction-and-doxycycline-therapy-insights-from-the-tiptop-trial
#19
Giampaolo Cerisano, Piergiovanni Buonamici, Guido Parodi, Alberto Santini, Guia Moschi, Renato Valenti, Angela Migliorini, Paolo Colonna, Benedetta Bellandi, Anna Maria Gori, David Antoniucci
AIM: Metalloproteinases inhibition by doxycycline reduces cardiac protein degradation at extracellular and intracellular level in the experimental model ischemia/reperfusion injury. Since both extracellular cardiac matrix and titin filaments inside the cardiomyocyte are responsible for the myocardial stiffness, we hypothesized that doxycycline could favorably act on left ventricular (LV) filling pressures in patients after reperfused acute ST-elevation myocardial infarction (STEMI). METHODS AND RESULTS: Seventy-three of 110 patients of the TIPTOP trial underwent a 2D-Echo-Doppler on admission, and at pre-discharge and at 6-month after a primary PCI for STEMI and LV dysfunction...
April 7, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28431003/intracoronary-autologous-bone-marrow-cell-transfer-after-myocardial-infarction-the-boost-2-randomised-placebo-controlled-clinical-trial
#20
Kai C Wollert, Gerd P Meyer, Jochen Müller-Ehmsen, Carsten Tschöpe, Vernon Bonarjee, Alf Inge Larsen, Andreas E May, Klaus Empen, Emmanuel Chorianopoulos, Ulrich Tebbe, Johannes Waltenberger, Heiko Mahrholdt, Benedikta Ritter, Jens Pirr, Dieter Fischer, Mortimer Korf-Klingebiel, Lubomir Arseniev, Hans-Gert Heuft, Jan E Brinchmann, Diethelm Messinger, Bernd Hertenstein, Arnold Ganser, Hugo A Katus, Stephan B Felix, Meinrad P Gawaz, Kenneth Dickstein, Heinz-Peter Schultheiss, Dennis Ladage, Simon Greulich, Johann Bauersachs
Aims: Intracoronary infusion of autologous nucleated bone marrow cells (BMCs) enhanced the recovery of left ventricular ejection fraction (LVEF) after ST-segment elevation myocardial infarction (STEMI) in the randomised-controlled, open-label BOOST trial. We reassessed the therapeutic potential of nucleated BMCs in the randomised placebo-controlled, double-blind BOOST-2 trial conducted in 10 centres in Germany and Norway. Methods and results: Using a multiple arm design, we investigated the dose-response relationship and explored whether γ-irradiation which eliminates the clonogenic potential of stem and progenitor cells has an impact on BMC efficacy...
April 19, 2017: European Heart Journal
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