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https://www.readbyqxmd.com/read/28204860/left-ventricular-systolic-dysfunction-during-septic-shock-the-role-of-loading-conditions
#1
Florence Boissier, Keyvan Razazi, Aurélien Seemann, Alexandre Bedet, Arnaud W Thille, Nicolas de Prost, Pascal Lim, Christian Brun-Buisson, Armand Mekontso Dessap
PURPOSE: The clinical significance of septic myocardial dysfunction is controversial, a fact that may be explained by the influence of loading conditions. Many indices may be useful to characterize cardiac function during septic shock, but their feasibility and physiological coherence in the clinical setting are unknown. METHODS: Hemodynamic and echocardiographic data with tissue Doppler and speckle tracking were prospectively recorded on the first 3 days of human septic shock...
February 15, 2017: Intensive Care Medicine
https://www.readbyqxmd.com/read/28191665/apical-left-ventricular-myocardial-dysfunction-is-an-early-feature-of-cardiac-involvement-in-myotonic-dystrophy-type-1
#2
Rodrigue Garcia, Quentin Labarre, Bruno Degand, Pierre Ingrand, François Le Gal, Benjamin Bonnet, Anne Delaubier, Claire Guillou, Barnabas Gellen, Damien Coisne, Claire Bouleti, Luc Christiaens
INTRODUCTION: Left ventricular (LV) dysfunction is a major prognostic determinant in myotonic dystrophy type 1 (DM1). Therefore, markers of early-stage LV impairment may be useful. The aim of this study was to evaluate 2D echocardiographic LV strain in a cohort of DM1 patients with preserved left ventricular ejection fraction (LVEF) and to compare the results with matched controls. METHODS: This prospective single-center study included 33 consecutive DM1 patients between February 2014 and February 2015...
February 13, 2017: Echocardiography
https://www.readbyqxmd.com/read/28184975/alkaline-phosphatase-a-biomarker-of-cardiac-function-in-pediatric-patients
#3
Elizabeth S Makil, Xinyu Tang, Elizabeth A Frazier, R Thomas Collins
Myocardial dysfunction and heart failure are common in pediatric patients with congenital and acquired heart disease. Alkaline phosphatase (AP) has been suggested as a biomarker for myocardial dysfunction after Fontan operation. We hypothesized that pediatric patients with myocardial dysfunction requiring orthotopic heart transplant (OHT) have diminished AP compared to normal. A retrospective review was performed in all patients who underwent OHT at Arkansas Children's Hospital between January 2007 and October 2012...
February 9, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28180202/applicability-and-technical-aspects-of-two-dimensional-ultrasonography-for-assessment-of-fetal-heart-function
#4
REVIEW
Nathalie Jeanne Bravo-Valenzuela, Alberto Borges Peixoto, Luciano Marcondes Nardozza, Alex Sandro Souza, Edward Araujo Júnior
In recent years, fetal echocardiography has been used for the screening and diagnosis of anatomical heart defects and for the detailed study of fetal cardiac function. This method is characterized by its easy implementation and good reproducibility, allowing the diagnosis of myocardial dysfunction even in its subclinical phase. The functional assessment of the fetal heart should be routinely performed in fetuses with congenital heart disease and those without anatomical malformation. Several extra-cardiac conditions may alter fetal cardiac function, by increased placental resistance, volume overload or hyperdynamic circulation, compression, or maternal systemic disease with involvement of the fetal myocardium...
January 31, 2017: Medical Ultrasonography
https://www.readbyqxmd.com/read/28168403/carbon-monoxide-releasing-molecule-3-improves-myocardial-function-in-mice-with-sepsis-by-inhibiting-nlrp3-inflammasome-activation-in-cardiac-fibroblasts
#5
Wenbo Zhang, Aibin Tao, Ting Lan, Gediminas Cepinskas, Raymond Kao, Claudio M Martin, Tao Rui
The NLRP3 inflammasome is an intracellular multiple-protein complex that controls the maturation and release of interleukin (IL)-1β and IL-18. Endogenous carbon monoxide (CO) is anti-inflammatory. The aim of this study was to assess the effects/mechanisms of CO-releasing molecule-3 (CORM-3)-dependent modulation of the NLRP3 inflammasome in cardiac fibroblasts (CF) and its effect on myocardial function in sepsis. CF were treated with CORM-3 or inactive CORM-3 (iCORM-3) before NLRP3 inflammasome priming with lipopolysaccharides (LPS) or following activation with adenosine triphosphate (ATP)...
March 2017: Basic Research in Cardiology
https://www.readbyqxmd.com/read/28151760/titin-truncating-mutations-in-dilated-cardiomyopathy-the-long-and-short-of-it
#6
Diane Fatkin, Inken G Huttner
PURPOSE OF REVIEW: Truncating variants in the TTN gene (TTNtv) are frequently identified in patients with dilated cardiomyopathy (DCM) but are also present in apparently healthy people in the general population. Consequently, there is considerable uncertainty about what it means for any single individual if a TTNtv is found. The aim of this review is to summarize current evidence implicating TTNtv in DCM pathogenesis and to provide some interpretative guidelines for clinical management...
February 1, 2017: Current Opinion in Cardiology
https://www.readbyqxmd.com/read/28149560/glucose-insulin-potassium-correlates-with-hemodynamic-improvement-in-patients-with-septic-myocardial-dysfunction
#7
Won-Young Kim, Moon Seong Baek, Young Shin Kim, Jarim Seo, Jin Won Huh, Chae-Man Lim, Younsuck Koh, Sang-Bum Hong
BACKGROUND: Glucose-insulin-potassium (GIK) demonstrates a cardioprotective effect by providing metabolic support and anti-inflammatory action, and may be useful in septic myocardial depression. The aim of this study was to examine the relationship between GIK and hemodynamic outcomes in septic shock patients with myocardial depression. METHODS: Between October 2012 and March 2014, 45 patients in the intensive care unit who fulfilled the criteria for severe sepsis/septic shock and were treated with GIK were recruited...
December 2016: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28147413/cardiac-issues-in-cardiac-arrest
#8
Wulfran Bougouin, Alain Cariou
The prognosis of cardiac arrest (CA) remains poor, with a survival rate at hospital discharge between 6 and 10%. To improve this disappointing outcome, efforts are needed regarding each step in the chain of survival. In this review, the authors focus on cardiac issues, as the heart itself could be both a cause and a target in this setting. Acute myocardial infarction is very illustrative of this duality. As it is a frequent cause of CA, an early invasive strategy (through immediate coronary angiography) has been proposed by several teams and is now recommended in specific situations...
February 2017: Seminars in Neurology
https://www.readbyqxmd.com/read/28147298/microrna-135a-is-up-regulated-and-aggravates-myocardial-depression-in-sepsis-via-regulating-p38-mapk-nf-%C3%AE%C2%BAb-pathway
#9
Ge Zheng, Minli Pan, Weimin Jin, Guoxin Jin, Yumao Huang
MicroRNA-135a (miR-135a) is implicated in the pathological processes of several cancers. However, the roles and regulatory mechanism of miR-135a in sepsis-induced myocardial depression (MD) remain largely unknown. In this study, the serum of patients with sepsis and healthy controls was obtained. The miR-135a expression was then measured. Then lentiviruses (miR-135a mimic, inhibitor and scramble control) were transfected into BALB/c mice. After 4days of transfection, polymicrobial sepsis model was established by cecal ligation and puncture (CLP) surgery...
January 29, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28144715/cardioprotective-effects-of-irbesartan-in-polymicrobial-sepsis-the-role-of-the-p38mapk-nf-%C3%AE%C2%BAb-signaling-pathway
#10
N G Yousif, N R Hadi, F Al-Amran, Q A Zigam
BACKGROUND: Sepsis is a systemic inflammatory response usually correlated with multi-organ failure. Myocardial dysfunction is one of the adverse outcomes in septic patients and results in high mortality rates. The aim of this study was to investigate the impact of irbesartan in attenuation of cardiac depression during polymicrobial sepsis via decreased activation of the phospho-p38MAPK/nuclear factor (NF)-κB signaling pathway. MATERIALS AND METHODS: A model of polymicrobial sepsis induced via cecal ligation and puncture (CLP) with 8- to 12-week-old albino mice was used...
January 31, 2017: Herz
https://www.readbyqxmd.com/read/28139073/assessment-of-left-ventricular-functions-and-myocardial-iron-load-with-tissue-doppler-and-speckle-tracking-echocardiography-and-t2-mri-in-patients-with-%C3%AE-thalassemia-major
#11
Mehmet Emre Ari, Filiz Ekici, İbrahim İlker Çetin, Emine Betül Tavil, Neşe Yaralı, Pamir Işık, Tuncay Hazırolan, Bahattin Tunç
BACKGROUND: The purpose of this study is to determine early myocardial dysfunction in β-thalassemia major (BTM) patients. Where the myocardial dysfunction cannot be detected by conventional echocardiography, it could be detected by tissue Doppler imaging (TDI) or speckle tracking echocardiography (STE). METHODS: In this study, we analyzed 60 individuals, 30 of whom were BTM patients and the other 30 of whom were the control group. T2* magnetic resonance imaging (MRI) was used to measure cardiac iron deposition...
January 31, 2017: Echocardiography
https://www.readbyqxmd.com/read/28127980/speckle-tracking-can-detect-subclinical-myocardial-dysfunction-in-rheumatoid-arthritis-patients
#12
O Benacka, J Benacka, P Blazicek, M Belansky, J Payer, Z Killinger, J Lietava
INTRODUCTION: Patients with rheumatoid arthritis (RA) have shorter life expectancy and their risk of cardiovascular death is more than 50 % higher than the rest of the population. Early myocardial dysfunction in RA patients may be detectable sooner using speckle‑tracking echocardiography. METHOD: Cross-sectional study enrolled 55 patients with RA (mean age 44.1 years) without known cardiovascular disease and 31 healthy controls. All subjects underwent a standard echocardiographic examination: indexed left ventricular mass, left ventricle ejection fraction, isovolumic contraction and relaxation times (IVCT and IVRT), mitral valve inflow curve (E/A), septal mitral annular motion (e'), and E/e' ratio as well as the speckle tracking assessment of left ventricle longitudinal, radial and circular strain and strain rate...
2017: Bratislavské Lekárske Listy
https://www.readbyqxmd.com/read/28121216/left-ventricular-function-at-two-year-follow-up-in-treatment-naive-rheumatoid-arthritis-patients-is-associated-with-anti-cyclic-citrullinated-peptide-antibody-status-a-cohort-study
#13
B B Løgstrup, D Masic, T B Laurbjerg, J Blegvad, M Herly, L D Kristensen, G Urbonaviciene, A Hedemann-Nielsen, T Ellingsen
OBJECTIVES: In rheumatoid arthritis (RA), the role of autoimmunity, especially anti-cyclic citrullinated peptide antibody (anti-CCP) level, and the time-course of left ventricular (LV) function is unknown. The objective was to assess LV function and the amount of coronary calcium in relation to anti-CCP levels in a cohort of treatment-naive RA patients, and to assess changes in these parameters during a 2 year follow-up period. METHOD: Sixty-six steroid- and disease-modifying anti-rheumatic drug-naive RA patients were treated with methotrexate according to the Danish national guidelines...
January 25, 2017: Scandinavian Journal of Rheumatology
https://www.readbyqxmd.com/read/28118356/differential-expression-of-matrix-metalloproteinases-2-9-and-cytokines-by-neutrophils-and-monocytes-in-the-clinical-forms-of-chagas-disease
#14
Nayara I Medeiros, Rafaelle C G Fares, Eliza P Franco, Giovane R Sousa, Rafael T Mattos, Ana T Chaves, Maria do Carmo P Nunes, Walderez O Dutra, Rodrigo Correa-Oliveira, Manoel O C Rocha, Juliana A S Gomes
Dilated cardiomyopathy, the most severe manifestation in chronic phase of Chagas disease, affects about 30% of patients and is characterized by myocardial dysfunction and interstitial fibrosis due to extracellular matrix (ECM) remodeling. ECM remodeling is regulated by proteolytic enzymes such as matrix metalloproteinases (MMPs) and cytokines produced by immune cells, including phagocytes. We evaluated by flow cytometry the expression of MMP-2, MMP-9, IL-1β, TNF-α, TGF-β and IL-10 by neutrophils and monocytes from patients with indeterminate (IND) and cardiac (CARD) clinical forms of Chagas disease and non-infected individuals (NI), before and after in vitro stimulation with Trypanosoma cruzi antigens...
January 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28109123/sodium-butyrate-protects-against-high-fat-diet-induced-cardiac-dysfunction-and-metabolic-disorders-in-type-ii-diabetic-mice
#15
Ling Zhang, Jianfeng Du, Naohiro Yano, Hao Wang, Yu Tina Zhao, Dubielecka-Szczerba Patricia, Shougang Zhuang, Eugene Y Chin, Gangjian Qin, Ting C Zhao
Histone deacetylases are recently identified to act as key regulators for cardiac pathophysiology and metabolic disorders. However, the function of histone deacetylase (HDAC) in controlling cardiac performance in type II diabetes and obesity remains unknown. Here we determine whether HDAC inhibition attenuates high fat diet (HFD)-induced cardiac dysfunction and improves metabolic features. Adult mice were fed with either HFD or standard chow food for 24 weeks. Starting at 12 weeks, mice were divided into four groups randomly, in which sodium butyrate (1%), a potent HDAC inhibitor, was provided to chow and HFD-fed mice in drinking water, respectively...
January 21, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28092472/using-biomarkers-to-predict-and-to-prevent-cardiotoxicity-of-cancer-therapy
#16
Daniela Cardinale, Gina Biasillo, Michela Salvatici, Maria Teresa Sandri, Carlo Maria Cipolla
Cardiotoxicity is a common complication that may compromise the clinical effectiveness of anticancer therapy. The current standard for monitoring cardiac function detects cardiotoxicity only when a functional impairment has already occurred, not allowing for any early preventive strategy. Areas covered: A novel approach, based on the use of biomarkers has recently emerged, resulting in a very effective tool for early, real-time identification, and monitoring of cardiotoxicity. In particular, cardiac troponin elevation during chemotherapy allows to identify patients more prone to develop myocardial dysfunction and cardiac events...
January 29, 2017: Expert Review of Molecular Diagnostics
https://www.readbyqxmd.com/read/28065839/cardiovascular-function-in-long-term-hematopoietic-cell-transplantation-survivors
#17
Saro H Armenian, David Horak, Jessica M Scott, George Mills, Aida Siyahian, Jennifer Berano Teh, Pamela S Douglas, Stephen J Forman, Smita Bhatia, Lee W Jones
Peak oxygen consumption (VO2peak), as measured by cardiopulmonary exercise testing (CPET), is a powerful independent predictor of cardiovascular disease (CVD) and all-cause mortality in a broad range of populations. We assessed the safety and feasibility of CPET in aging long-term hematopoietic cell transplantation (HCT) survivors, a population at high risk for premature onset of CVD. Next, we examined how organ-specific impairments (eg, cardiac, pulmonary, hematologic) impact VO2peak after HCT. Twenty consecutive HCT survivors underwent a comprehensive assessment of cardiopulmonary health that included CPET, echocardiography with strain, pulmonary function testing, 6-minute walk test, and timed up and go...
January 5, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28063262/quantification-of-mechanical-dyssynchrony-in-growth-restricted-fetuses-and-normal-controls-using-speckle-tracking-echocardiography-ste
#18
Kristina Krause, Mareike Möllers, Kerstin Hammer, Maria Karina Falkenberg, Ute Möllmann, Dennis Görlich, Walter Klockenbusch, Ralf Schmitz
PURPOSE: To evaluate longitudinal mechanical dyssynchrony in normally grown fetuses by speckle tracking echocardiography (STE) and to compare longitudinal mechanical dyssynchrony in fetal growth restriction (FGR) with normal controls. MATERIALS AND METHODS: A prospective study was performed on 30 FGR and 62 normally grown fetuses, including 30 controls matched by gestational age, using STE and a transversal four-chamber view. Data analysis was carried out with a high frame rate of about 175 frames/s...
January 7, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28062567/short-term-high-fat-diet-compromises-myocardial-function-a-radial-strain-rate-imaging-study
#19
Julien Ternacle, Feng Wan, Daigo Sawaki, Mathieu Surenaud, Maria Pini, Raquel Mercedes, Laura Ernande, Etienne Audureau, Jean-Luc Dubois-Rande, Serge Adnot, Sophie Hue, Gabor Czibik, Genevieve Derumeaux
AIM: Long-term high-fat diet (HFD) induces both cardiac remodelling and myocardial dysfunction in murine models. The aim was to assess the time course and mechanisms of metabolic and cardiac modifications induced by short-term HFD in wild-type (WT) mice. METHODS AND RESULTS: Thirty-three WT mice were subjected to HFD (60% fat, n = 16) and chow diet (CD, 13% fat, n = 17). Metabolic and echocardiographic data were collected at baseline and every 5 weeks for 20 weeks...
January 6, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/28060997/effect-of-hypercholesterolaemia-on-myocardial-function-ischaemia-reperfusion-injury-and-cardioprotection-by-preconditioning-postconditioning-and-remote-conditioning
#20
REVIEW
Ioanna Andreadou, Efstathios K Iliodromitis, Antigone Lazou, Anikó Görbe, Zoltán Giricz, Rainer Schulz, Péter Ferdinandy
Hypercholesterolaemia is considered to be a principle risk factor for cardiovascular disease, having direct negative effects on the myocardium itself, in addition to the development of atherosclerosis. Since hypercholesterolaemia affects the global cardiac gene expression profile, among many other factors, it results in increased myocardial oxidative stress, mitochondrial dysfunction and inflammation triggered apoptosis, all of which may account for myocardial dysfunction and increased susceptibility of the myocardium to infarction...
January 6, 2017: British Journal of Pharmacology
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