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Post infarction heart failure

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https://www.readbyqxmd.com/read/28735289/prolonged-fever-after-st-segment-elevation-myocardial-infarction-and-long-term-cardiac-outcomes
#1
Chika Kawashima, Yasushi Matsuzawa, Eiichi Akiyama, Masaaki Konishi, Hiroyuki Suzuki, Katsutaka Hashiba, Toshiaki Ebina, Masami Kosuge, Kiyoshi Hibi, Kengo Tsukahara, Noriaki Iwahashi, Nobuhiko Maejima, Kentaro Sakamaki, Satoshi Umemura, Kazuo Kimura, Kouichi Tamura
BACKGROUND: The biphasic inflammation after ST-segment elevation myocardial infarction (STEMI) plays an important role in myocardial healing and progression of systemic atherosclerosis. The purpose of this study is to investigate the impact of fever during the first and second phases of post-STEMI inflammation on long-term cardiac outcomes. METHODS AND RESULTS: A total of 550 patients with STEMI were enrolled in this study. Axillary body temperature (BT) was measured and maximum BTs were determined for the first (within 3 days: max-BT1-3d) and second (from 4 to 10 days after admission: max-BT4-10d) phases, respectively...
July 22, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28734575/outcomes-associated-to-serum-phosphate-levels-in-patients-with-suspected-acute-coronary-syndrome
#2
Hong Xu, Marie Evans, Alessandro Gasparini, Karolina Szummer, Jonas Spaak, Johan Ärnlöv, Bengt Lindholm, Tomas Jernberg, Juan Jesús Carrero
BACKGROUND: We investigated the association between phosphate and the risk of adverse clinical outcomes in patients with manifest cardiovascular disease (CVD). METHODS: Observational study of patients hospitalized during 2006-2011 in Stockholm, Sweden, because of suspected acute coronary syndrome (ACS). The exposure was serum phosphate during the hospitalization. We modeled the association between phosphate and in-hospital death or in-hospital events (composite of myocardial infarction, cardiogenic shock, resuscitated cardiac arrest, atrial fibrillation, or atrioventricular block) as well as the one-year post-discharge risk of death or cardiovascular event (composite of myocardial re-infarction, heart failure and stroke)...
July 17, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28725326/comparison-of-clopidogrel-with-prasugrel-and-ticagrelor-in-patients-with-acute-coronary-syndrome-clinical-outcomes-from-the-national-cardiovascular-database-action-registry
#3
Mohamed Khayata, Joseph N Gabra, M Farhan Nasser, George I Litman, Shyam Bhakta, Rupesh Raina
BACKGROUND: We aimed to compare the clinical outcomes of clopidogrel, prasugrel, and ticagrelor in clinical practice using the National Cardiovascular Database ACTION Registry(®). Treatment guidelines for patients with acute coronary syndrome (ACS) undergoing percutaneous coronary intervention recommend dual antiplatelet therapy (DAPT) for 12 months. Few clinical trials have compared the safety and efficacy of clopidogrel with that of newer antiplatelet therapies. METHODS: A retrospective study of patients hospitalized for ACS at Cleveland Clinic Akron General was conducted...
June 2017: Cardiology Research
https://www.readbyqxmd.com/read/28724653/haplodeficiency-of-ataxia-telangiectasia-mutated-accelerates-heart-failure-after-myocardial-infarction
#4
Lixin Jia, Wenmei Zhang, Youcai Ma, Boya Chen, Yan Liu, Chunmei Piao, Yuan Wang, Min Yang, Tingting Liu, Junmeng Zhang, Taotao Li, Shaoping Nie, Jie Du
BACKGROUND: Cell senescence is involved in the process of organ damage and repair; however, the underlying molecular mechanism needs to be further explored. METHODS AND RESULTS: Senescence-related genes (ie, p21, p53, and ataxia telangiectasia mutated [ATM]) were shown to be elevated after myocardial infarction (MI) in both mouse and human hearts. Ten- to 12-week-old male wild-type littermates (ATM(+/+)) and ATM heterozygous mice (ATM(+/-)) were subjected to MI...
July 19, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28701679/nanoparticle-mediated-delivery-of-pitavastatin-to-monocytes-macrophages-inhibits-left-ventricular-remodeling-after-acute-myocardial-infarction-by-inhibiting-monocyte-mediated-inflammation
#5
Yajing Mao, Jun-Ichiro Koga, Masaki Tokutome, Tetsuya Matoba, Gentaro Ikeda, Kaku Nakano, Kensuke Egashira
Left ventricular (LV) remodeling after myocardial infarction (MI) causes heart failure. Although medical therapies including angiotensin converting enzyme inhibitors show inhibitory effects on post-infarct LV remodeling, the prognosis of patients with post-infarct heart failure is still poor. Accumulating evidence suggests that an inflammatory response is implicated in the process of post-infarct LV remodeling. Therefore, we hypothesized that anti-inflammatory therapy by nanoparticle-mediated monocyte/macrophage-targeting delivery of pitavastatin may protect the heart from post-infarct LV remodeling...
July 13, 2017: International Heart Journal
https://www.readbyqxmd.com/read/28700669/long-term-health-outcomes-in-patients-with-a-history-of-myocardial-infarction-a-population-based-cohort-study
#6
Navdeep Tangri, Thomas W Ferguson, Reid H Whitlock, Claudio Rigatto, Davinder S Jassal, Malek Kass, Olga Toleva, Paul Komenda
BACKGROUND: Myocardial infarction (MI) is associated with high morbidity and mortality, particularly in the first 12 months post-event. Interventions such as dual antiplatelet therapy can reduce the risk of major adverse cardiovascular events (MACE), but the duration of the high-risk time interval and the optimal prescription time frame for these interventions remains unknown. DESIGN, SETTING, PARTICIPANTS, AND MEASUREMENTS: We performed a retrospective cohort study using data from medical services and hospitalizations in Manitoba, Canada for patients admitted with a MI between April 2006 and March 2010, and followed until Nov 30, 2014...
2017: PloS One
https://www.readbyqxmd.com/read/28687707/validity-of-cardiovascular-data-from-electronic-sources-the-multi-ethnic-study-of-atherosclerosis-and-healthlnk
#7
Faraz S Ahmad, Cheeling Chan, Marc B Rosenman, Wendy S Post, Daniel G Fort, Philip Greenland, Kiang J Liu, Abel Kho, Norrina B Allen
Background -Understanding the validity of data from electronic data research networks is critical to national research initiatives and learning healthcare systems for cardiovascular care. Our goal was to evaluate the degree of agreement of electronic data research networks compared with data collected by standardized research approaches in a cohort study. Methods -We linked individual-level data from The Multi-Ethnic Study of Atherosclerosis (MESA), a community-based cohort, with HealthLNK, a 2006-2012 database of electronic health records (EHRs) from six, Chicago health systems...
July 7, 2017: Circulation
https://www.readbyqxmd.com/read/28683966/%C3%AE-1-blockade-prevents-post-ischemic-myocardial-decompensation-via-%C3%AE-3ar-dependent-protective-sphingosine-1-phosphate-signaling
#8
Alessandro Cannavo, Giuseppe Rengo, Daniela Liccardo, Andres Pun, Ehre Gao, Alvin J George, Giuseppina Gambino, Antonio Rapacciuolo, Dario Leosco, Borja Ibanez, Nicola Ferrara, Nazareno Paolocci, Walter J Koch
BACKGROUND: Although β-blockers increase survival in patients with heart failure (HF), the mechanisms behind this protection are not fully understood, and not all patients with HF respond favorably to them. We recently showed that, in cardiomyocytes, a reciprocal down-regulation occurs between β1-adrenergic receptors (ARs) and the cardioprotective sphingosine-1-phosphate (S1P) receptor-1 (S1PR1). OBJECTIVES: The authors hypothesized that, in addition to salutary actions due to direct β1AR-blockade, agents such as metoprolol (Meto) may improve post-myocardial infarction (MI) structural and functional outcomes via restored S1PR1 signaling, and sought to determine mechanisms accounting for this effect...
July 11, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28679419/improvement-of-left-ventricular-ejection-fraction-in-revascularized-postmyocardial-patients-indication-for-statistical-fallacy
#9
Rona Reibis, Annett Salzwedel, Klaus Bonaventura, Heinz Völler, Karl Wegscheider
BACKGROUND: Reduced left ventricular ejection fraction (LVEF) ≤30% is the most powerful prognostic indicator for sudden cardiac death (SCD) in patients after myocardial infarction (MI), but there are little data about long-term changes of LVEF after revascularization and the following implantation of a cardioverter defibrillator (ICD). METHODS: We performed a retrospective analysis of 277 patients with reduced LVEF at least 1 month after MI and complete revascularization...
July 5, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28671086/deficiency-of-interfibrillar-mitochondria-in-post-acute-myocardial-infarction-heart-failure
#10
Yanting Geng, Yuanhui Hu, Huan Wang, Shuai Shi, Jingjing Shi, Zhiling Qiu
Mitochondrial dysfunction plays an important role in the progress of heart failure (HF). A pronounced variability of defects in mitochondrial subpopulations is reported to occur in various disease models. The aim of the study was to define the defects in the ultra structure and bioenergetic function of cardiac mitochondria in acute myocardial infarction-induced HF. AMI-induced HF rats were treated with saline (4.0ml/kg) for 8weeks. The ultra structure of myocardial mitochondrial subpopulations was assessed by electron microscope...
May 2017: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28664743/mapk-pathway-regulated-the-cardiomyocyte-apoptosis-in-mice-with-post-infarction-heart-failure
#11
Q Zhang, L Lu, T Liang, M Liu, Z L Wang, P Y Zhang
BACKGROUND: To explore the role of the MAPK signaling pathway in the cardiomyocyte apoptosis of mice with post-infarction heart failure (HF). METHODS: Mice were divided into sham and myocardial infarction (MI) groups. Before surgery, the MI group was divided into SB203580 and PBS subgroups. A post-infarction HF model was established by ligating the left anterior descending coronary artery. Ventricular dilatation and cardiac function were observed by small animal echocardiography...
2017: Bratislavské Lekárske Listy
https://www.readbyqxmd.com/read/28660552/adverse-remodeling-and-reverse-remodeling-after-myocardial-infarction
#12
REVIEW
Ankeet S Bhatt, Andrew P Ambrosy, Eric J Velazquez
PURPOSE OF REVIEW: The purpose of this review it to summarize the current literature on remodeling after myocardial infarction, inclusive of pathophysiological considerations, imaging modalities, treatment strategies, and future directions. RECENT FINDINGS: As patients continue to live longer after myocardial infarction (MI), the prevalence of post-MI heart failure continues to rise. Changes in the left ventricle (LV) after MI involve complex interactions between cellular and extracellular components, under neurohormonal regulation...
August 2017: Current Cardiology Reports
https://www.readbyqxmd.com/read/28660190/commentary-renal-function-estimation-and-cockcroft-gault-formulas-for-predicting-cardiovascular-mortality-in-population-based-cardiovascular-risk-heart-failure-and-post-myocardial-infarction-cohorts-the-heart-omics-in-ageing-homage-and-the-high-risk-myocardial
#13
COMMENT
https://www.readbyqxmd.com/read/28656296/the-ace2-ang%C3%A2-1-7-mas-receptor-axis-attenuates-cardiac-remodeling-and-fibrosis-in-post-myocardial-infarction
#14
Juan Wang, Wen He, Liping Guo, Yin Zhang, Hui Li, Suxia Han, Difei Shen
Myocardial remodeling serves an important role in the pathophysiology of coronary heart disease. The angiotensin-converting enzyme (ACE)2-angiotensin-(1-7) [Ang (1‑7)]‑Mas receptor (MasR) axis is a key regulator in myocardial remodeling and development of heart failure. To investigate how ACE2‑Ang‑(1‑7)‑MasR axis function on myocardial remodeling and cardiac fibrosis in post‑myocardial infarction (MI), male Sprague‑Dawley rats (weight, 200±20 g) were used to establish the model of myocardial infarction by ligating the left coronary artery...
August 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28656274/proteomics-of-acute-heart-failure-in-a-rat-post-myocardial-infarction-model
#15
Yichen Guo, Lianqun Cui, Shiliang Jiang, Airong Zhang, Shu Jiang
The aim of the present study was to identify the mechanisms underlying the development of post-myocardial infarction (post-MI) heart failure. The left anterior descending coronary artery of rats was occluded to mimic human ischemic heart disease. Linear Trap Quadropole OrbiTrap mass spectrometry was used to profile the expressions of energy metabolism‑associated and calcium‑binding proteins in the post‑MI and control groups. Using the online Protein Analysis Through Evolutionary Relationships classification system, 78 differentially expressed proteins were identified, including 50 downregulated proteins and 28 upregulated proteins in post‑MI group when compared with the control group...
August 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28649439/mechanisms-of-action-of-sacubitril-valsartan-on-cardiac-remodeling-a-systems-biology-approach
#16
Oriol Iborra-Egea, Carolina Gálvez-Montón, Santiago Roura, Isaac Perea-Gil, Cristina Prat-Vidal, Carolina Soler-Botija, Antoni Bayes-Genis
Sacubitril/Valsartan, proved superiority over other conventional heart failure management treatments, but its mechanisms of action remains obscure. In this study, we sought to explore the mechanistic details for Sacubitril/Valsartan in heart failure and post-myocardial infarction remodeling, using an in silico, systems biology approach. Myocardial transcriptome obtained in response to myocardial infarction in swine was analyzed to address post-infarction ventricular remodeling. Swine transcriptome hits were mapped to their human equivalents using Reciprocal Best (blast) Hits, Gene Name Correspondence, and InParanoid database...
2017: NPJ Systems Biology and Applications
https://www.readbyqxmd.com/read/28648650/planning-execution-and-follow-up-for-endovascular-aortic-aneurysm-repair-using-a-highly-restrictive-iodinated-contrast-protocol-in-patients-with-severe-renal-disease
#17
E Gallitto, G L Faggioli, M Gargiulo, A Freyrie, R Pini, C Mascoli, S Ancetti, V Vento, A Stella
BACKGROUND: The cumulative amount of iodinated-contrast-medium necessary for EVAR planning, operative procedure and subsequent follow-up is a threat for the onset of end stage renal disease in patients with pre-operative impaired kidney function. Purpose of this study is to describe a mini-invasive approach aimed to minimize the exposure of these patients to iodinated-contrast-medium and the subsequent risk of renal function worsening. METHODS: From 2012 to 2015, all patients with abdominal aortic aneurysm (AAA) at high-surgical risk and fit for standard endovascular repair (simple aortic-iliac anatomy: proximal and distal neck length ≥15mm, no severe angulation), underwent EVAR through the following "near-zero contrast" approach, if their glomerular filtration rate (GFR) was <30 mL/min: pre-operative planning was performed by non-contrast enhanced computed tomography (CT) and duplex-ultrasound (DU); the origin of renal/hypogastric arteries and aortic bifurcation was evaluated and matched with vertebral bone landmarks and the endograft deployed accordingly, using < 20cc of isotonic iodinate-contrast-medium and contrast-enhancement-DU (CEUS)...
June 22, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28648028/-expression-changes-of-notch-and-nuclear-factor-%C3%AE%C2%BAb-signaling-pathways-in-the-rat-heart-with-myocardial-infarction
#18
J L Jin, Z T Deng, R G Lyu, X H Liu, J R Wei
Objective: To observe the expression changes of Notch and nuclear factor-κB (NF-κB) signaling pathways in rat myocardium post myocardial infarction. Methods: Myocardial infarction was established by ligation of the left anterior descending coronary artery(MI group), sham rats (similar surgical procedure without coronary artery ligation) served as control, the rats were sacrificed at first week, 4th and 8th week after operation, the non-infarct myocardial tissue in both groups was obtained to detect the mRNA expression of Notch1, Dll4 and Hes1 by RT-PCR, the protein expression of NICD1 was detected by Western blot, the nuclear protein p65 content was detected to reflect the activation degree of NF-κB signaling in the cardiomyocytes...
June 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/28642328/leukocyte-diversity-in-resolving-and-nonresolving-mechanisms-of-cardiac-remodeling
#19
REVIEW
Bochra Tourki, Ganesh Halade
In response to myocardial infarction (MI), time-dependent leukocyte infiltration is critical to program the acute inflammatory response. Post-MI leukocyte density, residence time in the infarcted area, and exit from the infarcted injury predict resolving or nonresolving inflammation. Overactive or unresolved inflammation is the primary determinant in heart failure pathology post-MI. Here, our review describes supporting evidence that the acute inflammatory response also guides the generation of healing and regenerative mediators after cardiac damage...
June 22, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28641397/myocardial-scar-location-as-detected-by-cardiac-magnetic-resonance-is-associated-with-the-outcome-in-heart-failure-patients-undergoing-surgical-ventricular-reconstruction
#20
Serenella Castelvecchio, Giulia Careri, Federico Ambrogi, Antonia Camporeale, Lorenzo Menicanti, Francesco Secchi, Massimo Lombardi
OBJECTIVES: Post-infarction myocardial scar causes adverse left ventricular remodelling and negatively affects the prognosis. We sought to investigate whether scar extent and location obtained by cardiac magnetic resonance may affect the reverse remodelling and survival of heart failure patients undergoing surgical ventricular reconstruction. METHODS: From January 2011 to December 2015, 151 consecutive patients with previous myocardial infarction and left ventricular remodelling underwent surgical ventricular reconstruction at our Institution, of which 88 (58%) patients had a preoperative protocol-standardized late gadolinium enhancement (LGE)-cardiac magnetic resonance examination during the week before surgery...
June 21, 2017: European Journal of Cardio-thoracic Surgery
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