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Preserved ejection fraction

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https://www.readbyqxmd.com/read/27926769/myocardial-fibrosis-progression-in-duchenne-and-becker-muscular-dystrophy-a-randomized-clinical-trial
#1
Marly Conceição Silva, Tiago Augusto Magalhães, Zilda Maria Alves Meira, Carlos Henrique Reis Esselin Rassi, Amanda Cristina de Souza Andrade, Paulo Sampaio Gutierrez, Clerio Francisco Azevedo, Juliana Gurgel-Giannetti, Mariz Vainzof, Mayana Zatz, Roberto Kalil-Filho, Carlos Eduardo Rochitte
Importance: In Duchenne muscular dystrophy (DMD) and Becker muscular dystrophy (BMD), interventions reducing the progression of myocardial disease could affect survival. Objective: To assess the effect of early angiotensin-converting enzyme (ACE) inhibitor therapy in patients with normal left ventricular function on the progression of myocardial fibrosis (MF) identified on cardiovascular magnetic resonance (CMR). Design, Setting, and Participants: A randomized clinical trial conducted in 2 centers included 76 male patients with DMD or BMD undergoing 2 CMR studies with a 2-year interval for ventricular function and MF assessment...
December 7, 2016: JAMA Cardiology
https://www.readbyqxmd.com/read/27922176/dipeptidyl-peptidase-4-inhibitor-sitagliptin-reduces-inflammation-fibrosis-and-preserves-diastolic-function-in-a-rat-model-of-heart-failure-with-preserved-ejection-fraction
#2
Grazia Esposito, Donato Cappetta, Rosa Russo, Alessia Rivellino, Loreta Pia Ciuffreda, Fiorentina Roviezzo, Elena Piegari, L Liberato Berrino, Francesco Rossi, Antonella De Angelis, Konrad Urbanek
BACKGROUND AND PURPOSE: Heart failure with preserved ejection fraction (HFpEF) is a systemic syndrome driven by co-morbidities and its pathophysiology is poorly understood. Several studies suggesting that dipeptidyl peptidase 4 (DPP4) might be involved in the pathophysiology of heart failure prompted experimental and clinical investigations of DPP4 inhibitors on cardiovascular system. The aim of our study was to determine whether DPP4 inhibitor sitagliptin (SITA) affects the progression of HFpEF independently from the effects on glycaemia...
December 6, 2016: British Journal of Pharmacology
https://www.readbyqxmd.com/read/27914505/temporal-trends-and-factors-associated-with-diabetes-mellitus-among-patients-hospitalized-with-heart-failure-findings-from-get-with-the-guidelines-heart-failure-registry
#3
Justin B Echouffo-Tcheugui, Haolin Xu, Adam D DeVore, Phillip J Schulte, Javed Butler, Clyde W Yancy, Deepak L Bhatt, Adrian F Hernandez, Paul A Heidenreich, Gregg C Fonarow
BACKGROUND: The contribution of diabetes to the burden of heart failure (HF) remains largely undescribed. Assessing diabetes temporal trends among US patients hospitalized with HF and their relation with quality measures in real-world practice can help to define this burden. METHODS: Using data from the Get With the Guidelines-Heart Failure registry, we assessed temporal trends in diabetes prevalence among patients with HF and in subgroups with reduced ejection fraction (HFrEF; EF < 40%), borderline EF (HFbEF; 40%≤EF <50%), or preserved EF (HFpEF; EF ≥ 50%), hospitalized between 2005 and 2015...
December 2016: American Heart Journal
https://www.readbyqxmd.com/read/27913775/role-of-b-type-natriuretic-peptide-in-predicting-in-hospital-outcomes-in-acute-exacerbation-of-chronic-obstructive-pulmonary-disease-with-preserved-left-ventricular-function-a-5-year-retrospective-analysis
#4
Saraschandra Vallabhajosyula, Toufik Mahfood Haddad, Pranathi R Sundaragiri, Anas A Ahmed, Muhammad Sarfraz Nawaz, Hamza A A Rayes, Harish C Devineni, Arun Kanmanthareddy, Dustin A McCann, Christopher S Wichman, Ariel M Modrykamien, Lee E Morrow
BACKGROUND: The role of B-type natriuretic peptide (BNP) is less understood in the risk stratification of patients with an acute exacerbation of chronic obstructive pulmonary disease (AECOPD), especially in patients with normal left ventricular ejection fraction (LVEF). METHODS: This retrospective study from 2008 to 2012 evaluated all adult patients with AECOPD having BNP levels and available echocardiographic data demonstrating LVEF ≥40%. The patients were divided into groups 1, 2, and 3 with BNP ≤ 100, 101 to 500, and ≥501 pg/mL, respectively...
December 2, 2016: Journal of Intensive Care Medicine
https://www.readbyqxmd.com/read/27909532/ajmaline-challenge-to-unmask-infrahisian-disease-in-patients-with-recurrent-and-unexplained-syncope-preserved-ejection-fraction-with-or-without-conduction-abnormalities-on-surface-ecg
#5
Francesco Pentimalli, Luca Bacino, Matteo Ghione, Giambattista Siri, Massimo Gazzarata, Paolo Bellotti
Background: Pharmacological challenge with class I antiarrhythmic drug is a recommended diagnostic test in patients with unexplained syncope only in the presence of bundle branch block, when non-invasive tests have failed to make the diagnosis. Its role in patients with minor or no conduction disturbances on 12-leads ECG has not been evaluated yet. It is also not clear which are the values of His-Ventricular interval to be considered diagnostic. We sought to evaluate the role of ajmaline challenge in unmasking the presence of an infrahisian disease in patients with recurrent and unexplained syncope, regardless of the existence of conduction disturbances on surface ECG...
August 2016: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/27907892/the-parallel-tales-of-microvascular-angina-and-heart-failure-with-preserved-ejection-fraction-a-paradigm-shift
#6
Filippo Crea, C Noel Bairey Merz, John F Beltrame, Juan Carlos Kaski, Hisao Ogawa, Peter Ong, Udo Sechtem, Hiroaki Shimokawa, Paolo G Camici
No abstract text is available yet for this article.
October 23, 2016: European Heart Journal
https://www.readbyqxmd.com/read/27905877/mineralocorticoid-receptor-antagonists-for-heart-failure-systematic-review-and-meta-analysis
#7
Nicolas M Berbenetz, Marko Mrkobrada
BACKGROUND: Mineralocorticoid receptor antagonists (MRAs) have been associated with improved patient outcomes in patients with heart failure with reduced ejection fraction (HFrEF) but not preserved ejection fraction (HFpEF). We conducted a systematic review and meta-analysis of selective and nonselective MRAs in HFrEF and HFpEF. METHODS: We searched Cochrane Central Register of Controlled Trials, MEDLINE and EMBASE. We included randomized controlled trials (RCT) of MRAs in adults with HFpEF or HFrEF if they reported data on major adverse cardiac events or drug safety...
December 1, 2016: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/27904018/impact-of-plasma-kynurenine-level-on-functional-capacity-and-outcome-in-heart-failure%C3%A3-results-from-studies-investigating-co-morbidities-aggravating-heart-failure-sica-hf
#8
Masaaki Konishi, Nicole Ebner, Jochen Springer, Joerg C Schefold, Wolfram Doehner, Thomas Bernd Dschietzig, Stefan D Anker, Stephan von Haehling
BACKGROUND: Kynurenine is a circulating metabolite from the essential amino acid tryptophan. Accelerated degradation of kynurenine in skeletal muscle has been reported to provide an anti-inflammatory effect. The aim of this study was to investigate the association between blood kynurenine and muscle mass/function in patients with heart failure (HF), in whom diseased muscle mass/function plays a pathophysiological role.Methods and Results:Plasma kynurenine was assessed in 249 patients with HF (67±11 years, 21% women) and in 45 controls from the SICA-HF study...
November 30, 2016: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/27903539/outcome-implication-of-aortic-valve-area-normalized-to-body-size-in-asymptomatic-aortic-stenosis
#9
Christophe Tribouilloy, Yohann Bohbot, Sylvestre Maréchaux, Nicolas Debry, Quentin Delpierre, Marcel Peltier, Momar Diouf, Michel Slama, David Messika-Zeitoun, Dan Rusinaru
BACKGROUND: Current guidelines define severe aortic stenosis in patients with aortic valve area normalized to body surface area (AVA/BSA) <0.6 cm(2)/m(2); yet, this cutoff has never been validated. Moreover, it is not known whether AVA normalization to other body size indexes allows improved outcome prediction. We aim to test the value of AVA normalized to body size for outcome prediction in asymptomatic aortic stenosis. METHODS AND RESULTS: We included 289 patients with asymptomatic aortic stenosis, preserved ejection fraction, and AVA<1...
November 2016: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/27903537/comprehensive-cardiovascular-magnetic-resonance-assessment-in-patients-with-sarcoidosis-and-preserved-left-ventricular-ejection-fraction
#10
Simon Greulich, Daniel Kitterer, Joerg Latus, Eissa Aguor, Hannah Steubing, Philipp Kaesemann, Alexandru Patrascu, Andreas Greiser, Stefan Groeninger, Agnes Mayr, Niko Braun, M Dominik Alscher, Udo Sechtem, Heiko Mahrholdt
BACKGROUND: Cardiac sarcoidosis (CS) may manifest as arrhythmia or even sudden cardiac death. Because patients with CS often present with nonspecific symptoms, normal electrocardiography, and preserved left ventricular ejection fraction, a reliable diagnostic tool for the work-up of CS is needed. Late gadolinium enhancement-cardiovascular magnetic resonance has proven diagnostic value in CS but has some limitations that may be overcome by adding newer cardiovascular magnetic resonance mapping techniques...
November 2016: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/27903535/magnetic-resonance-imaging-of-cardiac-strain-pattern-following-transplantation-of-human-tissue-engineered-heart-muscles
#11
Xulei Qin, Johannes Riegler, Malte Tiburcy, Xin Zhao, Tony Chour, Babacar Ndoye, Michael Nguyen, Jackson Adams, Mohamed Ameen, Thomas S Denney, Phillip C Yang, Patricia Nguyen, Wolfram H Zimmermann, Joseph C Wu
BACKGROUND: The use of tissue engineering approaches in combination with exogenously produced cardiomyocytes offers the potential to restore contractile function after myocardial injury. However, current techniques assessing changes in global cardiac performance after such treatments are plagued by relatively low detection ability. Since the treatment is locally performed, this detection could be improved by myocardial strain imaging that measures regional contractility. METHODS AND RESULTS: Tissue engineered heart muscles (EHMs) were generated by casting human embryonic stem cell-derived cardiomyocytes with collagen in preformed molds...
November 2016: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/27900617/new-and-evolving-concepts-regarding-the-prognosis-and-treatment-of-cardiac-amyloidosis
#12
REVIEW
Stefano Perlini, Roberta Mussinelli, Francesco Salinaro
Systemic amyloidoses are rare and proteiform diseases, caused by extracellular accumulation of insoluble misfolded fibrillar proteins. Prognosis is dictated by cardiac involvement, which is especially frequent in light chain (AL) and in transthyretin variants (ATTR, both mutated, (ATTRm), and wild-type, (ATTRwt)). Recently, ATTRwt has emerged as a potentially relevant cause of a heart failure with preserved ejection fraction (HFpEF). Cardiac amyloidosis is an archetypal example of restrictive cardiomyopathy, with signs and symptoms of global heart failure and diastolic dysfunction...
November 29, 2016: Current Heart Failure Reports
https://www.readbyqxmd.com/read/27900610/novel-sgc-stimulators-and-sgc-activators-for-the-treatment-of-heart-failure
#13
Stefanie Breitenstein, Lothar Roessig, Peter Sandner, Kelly S Lewis
The burden of heart failure (HF) increases worldwide with an aging population, and there is a high unmet medical need in both, heart failure with reduced ejection fraction (HFrEF) and with preserved ejection fraction (HFpEF). The nitric oxide (NO) pathway is a key regulator in the cardiovascular system and modulates vascular tone and myocardial performance. Disruption of the NO-cyclic guanosine monophosphate (cGMP) signaling axis and impaired cGMP formation by endothelial dysfunction could lead to vasotone dysregulation, vascular and ventricular stiffening, fibrosis, and hypertrophy resulting in a decline of heart as well as kidney function...
November 30, 2016: Handbook of Experimental Pharmacology
https://www.readbyqxmd.com/read/27900534/heart-failure-management-in-the-elderly-a%C3%A2-public-health-challenge
#14
REVIEW
Natasa Cvetinovic, Goran Loncar, Jerneja Farkas
Heart failure (HF) is a rapidly growing public health problem and the leading cause of morbidity, mortality, and hospitalization in populations > 65 years. The elderly HF patients have an increased prevalence of HF with preserved ejection fraction and comorbidities, may present with atypical symptoms and signs, have a higher risk for adverse drug reactions, and worse prognosis as compared with younger patients. Moreover, there is a lack of evidence-based therapies for this population because they are underrepresented in the clinical trials...
November 29, 2016: Wiener Klinische Wochenschrift
https://www.readbyqxmd.com/read/27895488/advances-in-the-management-of-heart-failure-the-role-of-ivabradine
#15
REVIEW
Ursula Müller-Werdan, Georg Stöckl, Karl Werdan
A high resting heart rate (≥70-75 b.p.m.) is a risk factor for patients with heart failure (HF) with reduced ejection fraction (EF), probably in the sense of accelerated atherosclerosis, with an increased morbidity and mortality. Beta-blockers not only reduce heart rate but also have negative inotropic and blood pressure-lowering effects, and therefore, in many patients, they cannot be given in the recommended dose. Ivabradine specifically inhibits the pacemaker current (funny current, If) of the sinoatrial node cells, resulting in therapeutic heart rate lowering without any negative inotropic and blood pressure-lowering effect...
2016: Vascular Health and Risk Management
https://www.readbyqxmd.com/read/27894255/silent-diabetic-cardiomyopathy-in-everyday-practice-a-clinical-and-echocardiographic-study
#16
Brane Loncarevic, Danijela Trifunovic, Ivan Soldatovic, Bosiljka Vujisic-Tesic
BACKGROUND: Whether type 2 diabetes mellitus (DM) in the absence of hypertension (HTA) and coronary artery disease (CAD) affects left ventricular (LV) phenotype and function among asymptomatic DM patients that can be easily discovered in everyday practice, what is the clinical risk profile for diabetic cardiomyopathy and how HTA and CAD modulate LV structure and function above diabetic cardiomyopathy, are still incompletely answered questions. METHODS: In 210 DM patients (group I: 70 asymptomatic DM patients without HTA and CAD; group II: 70 DM patients with HTA and no CAD; group III: 70 DM patients with CAD and no HTA) and 80 healthy individuals, comprehensive echocardiography including speckle tracking strain and strain rate analysis, was done...
November 29, 2016: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/27894062/echocardiographic-comparison-between-left-ventricular-non-compaction-and-hypertrophic-cardiomyopathy
#17
Trine F Haland, Jørg Saberniak, Ida S Leren, Thor Edvardsen, Kristina H Haugaa
BACKGROUND: Modern imaging technology has improved detection of left ventricular non-compaction cardiomyopathy (LVNC). Hypertrophic cardiomyopathy (HCM) shares morphological features with LVNC, but prognosis and treatment strategies differ between LVNC and HCM. METHODS AND RESULTS: We aimed to compare global and regional LV myocardial function in LVNC and HCM. We hypothesized that apical function is reduced in LVNC due to the embryonic reduced compaction of the apex...
November 9, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27893744/optimization-of-irreversible-electroporation-protocols-for-in-vivo-myocardial-decellularization
#18
Yaniv Zager, David Kain, Natalie Landa, Jonathan Leor, Elad Maor
BACKGROUND: Irreversible electroporation (IRE) is a non-thermal cell ablation approach that induces selective damage to cell membranes only. The purpose of the current study was to evaluate and optimize its use for in-vivo myocardial decellularization. METHODS: Forty-two Sprague-Dawley rats were used to compare myocardial damage of seven different IRE protocols with anterior myocardial infarction damage. An in-vivo open thoracotomy model was used, with two-needle electrodes in the anterior ventricular wall...
2016: PloS One
https://www.readbyqxmd.com/read/27891745/cardiac-extracellular-matrix-is-associated-with-adverse-outcome-in-patients-with-chronic-heart-failure
#19
Franz Duca, Caroline Zotter-Tufaro, Andreas A Kammerlander, Adelheid Panzenböck, Stefan Aschauer, Daniel Dalos, Benedikt Köll, Benedikt Börries, Hermine Agis, Renate Kain, Klaus Aumayr, Florian Klinglmüller, Julia Mascherbauer, Diana Bonderman
AIMS: Accumulation of extracellular matrix (ECM) is known to play a crucial role in the pathophysiology of heart failure (HF). However, its prognostic relevance is poorly investigated. METHODS AND RESULTS: A total of 73 HF patients who underwent LV endomyocardial biopsy were enrolled in our study. ECM area was quantified by TissueFAXS and ImageJ software. Patients were followed-up at 6-month intervals. The study endpoint was defined as hospitalization for a cardiac reason and/or cardiac death...
November 27, 2016: European Journal of Heart Failure
https://www.readbyqxmd.com/read/27889803/reducing-rbm20-activity-improves-diastolic-dysfunction-and-cardiac-atrophy
#20
Florian Hinze, Christoph Dieterich, Michael H Radke, Henk Granzier, Michael Gotthardt
: Impaired diastolic filling is a main contributor to heart failure with preserved ejection fraction (HFpEF), a syndrome with increasing prevalence and no treatment. Both collagen and the giant sarcomeric protein titin determine diastolic function. Since titin's elastic properties can be adjusted physiologically, we evaluated titin-based stiffness as a therapeutic target. We adjusted RBM20-dependent cardiac isoform expression in the titin N2B knockout mouse with increased ventricular stiffness...
November 26, 2016: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
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