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Heart failure, diastolic failure, systolic failure

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https://www.readbyqxmd.com/read/27914656/chronic-oral-study-of-myosin-activation-to-increase-contractility-in-heart-failure-cosmic-hf-a-phase-2-pharmacokinetic-randomised-placebo-controlled-trial
#1
John R Teerlink, G Michael Felker, John J V McMurray, Scott D Solomon, Kirkwood F Adams, John G F Cleland, Justin A Ezekowitz, Assen Goudev, Peter Macdonald, Marco Metra, Veselin Mitrovic, Piotr Ponikowski, Pranas Serpytis, Jindrich Spinar, János Tomcsányi, Hans J Vandekerckhove, Adriaan A Voors, Maria Laura Monsalvo, James Johnston, Fady I Malik, Narimon Honarpour
BACKGROUND: Impaired contractility is a feature of heart failure with reduced ejection fraction. We assessed the pharmacokinetics and effects on cardiac function and structure of the cardiac myosin activator, omecamtiv mecarbil. METHODS: In this randomised, double-blind study, done at 87 sites in 13 countries, we recruited patients with stable, symptomatic chronic heart failure and left ventricular ejection fraction 40% or lower. Patients were randomly assigned equally, via an interactive web response system, to receive 25 mg oral omecamtiv mecarbil twice daily (fixed-dose group), 25 mg twice daily titrated to 50 mg twice daily guided by pharmacokinetics (pharmacokinetic-titration group), or placebo for 20 weeks...
November 30, 2016: Lancet
https://www.readbyqxmd.com/read/27897352/functional-magnetic-resonance-imaging-for-in-vivo-quantification-of-pulmonary-hypertension-in-the-sugen-5416-hypoxia-mouse
#2
Ellen C Breen, Miriam Scadeng, N Chin Lai, Fiona Murray, Timothy D Bigby
Pulmonary arterial hypertension (PAH) is characterized by elevated pulmonary artery pressures and right heart failure. PAH mouse models are instrumental in understanding disease pathophysiology. However, few methods are available to evaluate right cardiac function in small animals. In this study, magnetic resonance imaging (MRI) was used to measure in vivo cardiac dimensions in the Sugen 5416/hypoxia mouse model. Pulmonary hypertension (PH) was induced in C57BL/6 mice by three weeks of exposure to 10% oxygen and VEGF receptor inhibition (20 mg kg(-1) SU5416)...
November 29, 2016: Experimental Physiology
https://www.readbyqxmd.com/read/27887692/mechanisms-of-effort-intolerance-in-patients-with-heart-failure-and-borderline-ejection-fraction
#3
Yan Topilsky, Zach Rozenbaum, Shafik Khoury, Gregg S Pressman, Yaniv Gura, Jack Sherez, Avi Man, Jason Shimiaie, Sanford Edwards, Joshua Berookhim, Thierry Le Tourneau, Amir Halkin, Simon Biner, Gad Keren, Galit Aviram
Combining echocardiography and cardiopulmonary stress testing allows noninvasive assessment of hemodynamics, and oxygen extraction (A-VO2 difference). We evaluated mechanisms of effort intolerance in patients with heart failure with borderline (40% to 49%) left ventricular ejection fraction (EF) (HF and Borderline Ejection fraction). We included 89 consecutive patients with HF and Borderline Ejection fraction (n = 25; 63.6 ± 14 years, 64% men), control subjects (n = 22), patients with HF with preserved EF (n = 26; EF ≥50%), and patients with HF with reduced EF (n = 16; <40%)...
November 1, 2016: American Journal of Cardiology
https://www.readbyqxmd.com/read/27886160/left-ventricular-end-diastolic-volume-as-an-early-indicator-of-trastuzumab-related-cardiotoxicity-in-patients-with-her2-positive-breast-cancer-results-from-a-single-center-retrospective-study
#4
Corinna Bergamini, Flavia Torelli, Luca Ghiselli, Andrea Rossi, Laura Trevisani, Giulia Vinco, Stella Truong, Giovanni Benfari, Francesca LA Russa, Giorgio Golia, Annamaria Molino, Corrado Vassanelli
BACKGROUND: Adjuvant Trastuzumab therapy increases survival rates in patients with early HER2 positive breast cancer, although it can be potentially cardiotoxic. Aim of the study was to evaluate the prevalence of left ventricular (LV) systolic dysfunction; and the relationship between the presence of cardiovascular risk factors, cardiac therapy and/or echocardiographic parameters of systolic function at baseline and the development of cardiotoxicity in such patients. METHODS: 227 patients were retrospectively reviewed...
November 25, 2016: Minerva Cardioangiologica
https://www.readbyqxmd.com/read/27884252/differentiation-of-constriction-and-restriction-complex-cardiovascular-hemodynamics
#5
REVIEW
Jeffrey B Geske, Nandan S Anavekar, Rick A Nishimura, Jae K Oh, Bernard J Gersh
Differentiation of constrictive pericarditis (CP) from restrictive cardiomyopathy (RCM) is a complex and often challenging process. Because CP is a potentially curable cause of heart failure and therapeutic options for RCM are limited, distinction of these 2 conditions is critical. Although different in regard to etiology, prognosis, and treatment, CP and RCM share a common clinical presentation of predominantly right-sided heart failure, in the absence of significant left ventricular systolic dysfunction or valve disease, due to impaired ventricular diastolic filling...
November 29, 2016: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/27884008/left-ventricular-plication-reduces-wall-stress-and-cardiomyocyte-hypertrophy-in-a-rat-model-of-ischemic-cardiomyopathy
#6
Hidetsugu Asai, Yasushige Shingu, Tomoji Yamakawa, Haruki Niwano, Satoru Wakasa, Tomonori Ooka, Hiroki Kato, Tsuyoshi Tachibana, Yoshiro Matsui
BACKGROUND: The indications of left-ventricular plication (LVP) are controversial, although several studies have reported favorable outcomes in heart failure patients. The aim of this study was to assess left-ventricular (LV) wall stress and myocardial remodeling after LVP in a rat model of myocardial infarction (MI). METHODS: Sixteen rats underwent LVP by excluding the LV anterior wall scar 4 weeks after ligation of the left anterior descending artery. After 4 weeks, LV wall stress was assessed using transthoracic echocardiography and an LV catheter...
November 25, 2016: European Surgical Research. Europäische Chirurgische Forschung. Recherches Chirurgicales Européennes
https://www.readbyqxmd.com/read/27882023/effects-of-bisoprolol-in-combination-with-trimetazidine-on-the-treatment-of-heart-failure-and-concomitant-chronic-obstructive-pulmonary-disease
#7
Yuanyuan Ke, Dingli Xu, Minxiong Li, Zenglong Wu, Yongpeng Huang
OBJECTIVE: To evaluate the effects of bisoprolol combined with trimetazidine on the treatment of heart failure patients having concomitant chronic obstructive pulmonary disease (COPD); in comparison with control group treated with standard therapy only. METHODS: A total of 120 heart failure patients having concomitant COPD were selected and randomly divided into a control group and a treatment group according to different treatment methods (n=60). The control group was given continuous low flow oxygen inhalation and inotropic agents, and their cardiac stress was also reduced...
September 2016: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/27881564/heart-failure-stages-among-older-adults-in-the-community-the-atherosclerosis-risk-in-communities-study
#8
Amil M Shah, Brian Claggett, Laura R Loehr, Patricia P Chang, Kunihiro Matsushita, Dalane Kitzman, Suma H Konety, Anna Kucharska-Newton, Carla A Sueta, Thomas H Mosley, Jacqueline D Wright, Josef Coresh, Gerardo Heiss, Aaron R Folsom, Scott D Solomon
BACKGROUND: -Although HF disproportionately affects older adults, little data exist regarding the prevalence of American College of Cardiology/American Heart Association heart failure (HF) stages among older individuals in the community. Additionally, the role of contemporary measures of longitudinal strain (LS) and diastolic dysfunction in defining HF stages is unclear. METHODS: -HF stages were classified in 6,118 participants in the Atherosclerosis Risk in Communities study (age 67 - 91 years) at the fifth study visit as follows: stage A (asymptomatic with HF risk factors but no cardiac structural or functional abnormalities), B (asymptomatic with structural abnormalities, defined as left ventricular hypertrophy, dilation or dysfunction, or significant valvular disease), C1 (clinical HF without prior hospitalization), and C2 (clinical HF with prior hospitalization)...
November 23, 2016: Circulation
https://www.readbyqxmd.com/read/27878925/left-ventricular-deformation-at-rest-predicts-exercise-induced-elevation-in-pulmonary-artery-wedge-pressure-in-patients-with-unexplained-dyspnoea
#9
Tor Biering-Sørensen, Mário Santos, Jose Rivero, Shane D McCullough, Erin West, Alexander R Opotowsky, Aaron B Waxman, David M Systrom, Amil M Shah
AIMS: Impaired left ventricular (LV) deformation despite preserved LV ejection fraction (LVEF) is common and predicts outcomes in heart failure with preserved LVEF. We hypothesized that impaired LV deformation at rest is a marker of impaired cardiac systolic and diastolic reserve, and aimed to determine whether resting longitudinal (LS) and circumferential strain (CS) are associated with invasively measured haemodynamic response to exercise in patients with dyspnoea and a normal LVEF...
November 22, 2016: European Journal of Heart Failure
https://www.readbyqxmd.com/read/27875721/percutaneous-mitral-valve-repair-the-last-chance-for-symptoms-improvement-in-advanced-refractory-chronic-heart-failure
#10
Alessandra Berardini, Elena Biagini, Francesco Saia, Davide Stolfo, Mario Previtali, Francesco Grigioni, Bruno Pinamonti, Gabriele Crimi, Alessandro Salvi, Maurizio Ferrario, Antonio De Luca, Fabrizio Gazzoli, Maria Letizia Bacchi Reggiani, Claudia Raineri, Gianfranco Sinagra, Claudio Rapezzi
BACKGROUND: The role of percutaneous mitral valve repair (PMVR) in patients with end-stage heart failure (HF) and functional mitral regurgitation (FMR) is unclear. METHODS: Seventy-five consecutive patients with FMR grade≥3+ and severe HF symptoms despite optimal medical therapy and resynchronization therapy underwent PMVR with the MitraClip system (Abbott, Abbott Park, IL, USA) at 3 centers. Clinical evaluation, echocardiography and pro-BNP measurement were performed at baseline and at 6-month...
November 12, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27872995/nt-probnp-as-marker-of-ventricular-dilatation-and-pulmonary-regurgitation-after-surgical-correction-of-tetralogy-of-fallot-a-mri-validation-study
#11
Annalisa Paolino, Tarique Hussain, Antonio Pavon, Maria Nieves Velasco, Sergio Uribe, Antonio Ordoñez, Israel Valverde
The goal of this study is to evaluate whether NT-proBNP plasma levels may help as a screening biomarker for monitoring right ventricular dilatation, pulmonary regurgitation and the onset of heart failure in patients with repaired Tetralogy of Fallot. Our single-centre observational prospective study involved 43 patients (15.1 years, SD = 8) with corrected Tetralogy of Fallot. Data collection included: clinical parameters (electrocardiogram, chest X-ray, NYHA scale, time since last surgery), biochemistry (NT-proBNP levels) and MRI values (ventricular volumetry, pulmonary flow assessment)...
November 21, 2016: Pediatric Cardiology
https://www.readbyqxmd.com/read/27869287/dexmedetomidine-for-attenuating-haemodynamic-response-to-intubation-stimuli-in-morbidly-obese-patients-anaesthetised-using-low-opioid-technique-comparison-with-fentanyl-based-general-anaesthesia
#12
Tomasz Gaszyński, Klaudia Czarnik, Łukasz Łaziński, Wojciech Gaszyński
BACKGROUND: Anaesthesiologists are facing the problem of an increasing population of morbidly obese patients. In order to minimize the risk of opioid-induced postoperative respiratory failure, the intraoperative administration of opioids should be reduced or replaced with other drugs. The purpose of this study was to compare haemodynamic response elicited by intubation in morbidly obese patients between two variants of anaesthesia induction: fentanyl-based or low-opioid using dexmedetomidine...
November 21, 2016: Anaesthesiology Intensive Therapy
https://www.readbyqxmd.com/read/27867305/pulmonary-hypertension-in-heart-failure-patients-presenting-at-oauthc-ile-ife-nigeria
#13
Valentine N Amadi, Olufemi E Ajayi, Anthony O Akintomide, Olugbenga O Abiodun, Olaniyi J Bamikole, Michael O Balogun
BACKGROUND: Pulmonary hypertension (PH) is common in heart failure patients. Literature on PH in heart failure is sparse in Nigeria. This study was carried out to determine the prevalence of PH in heart failure patients and ascertain the relationship between left ventricular systolic and diastolic function and the degree of PH. METHODS: A total of 125 heart failure patients had echocardiography done. PH was diagnosed using tricuspid regurgitation jet and pulmonary ejection jet profile...
2016: Clinical Medicine Insights. Cardiology
https://www.readbyqxmd.com/read/27867290/ranolazine-is-an-effective-and-safe-treatment-of-adults-with-symptomatic-premature-ventricular-contractions-due-to-triggered-ectopy
#14
Gary L Murray
Early and delayed afterdepolarizations (EAD/DAD) cause triggered ventricular ectopy. Because ranolazine (RAN) suppresses EAD/DAD, we postulated that RAN might be effective in reducing premature ventricular contractions (PVCs). To assess the effect of RAN in patients with symptomatic PVCs due to triggered ectopy and its safety and tolerability. A total of 59 patients with symptomatic PVCs were identified from full-disclosure Holters. Doses of 500 and 1,000 mg offlabel RAN, daily, were given to 34 and 66% patients, respectively, and repeat Holters were performed prospectively during mean followup of 3...
December 2016: International Journal of Angiology: Official Publication of the International College of Angiology, Inc
https://www.readbyqxmd.com/read/27860152/n-terminal-pro-brain-natriuretic-peptide-is-a-useful-marker-to-identify-latent-heart-failure-patients-in-older-adults-in-a-rural-outpatient-clinic
#15
Kosuke Hamagawa, Toru Kubo, Kotaro Nishimura, Yuichi Baba, Takayoshi Hirota, Naohito Yamasaki, Hiroaki Kitaoka
AIM: Although measurement of natriuretic peptides including N-terminal pro-brain natriuretic peptide (NT-proBNP) has been recommended for identifying heart failure (HF) patients, the prevalence of elderly patients with latent HF who are attending an outpatient clinic is unknown. METHODS: We measured NT-proBNP levels in 393 patients (aged 75 ± 9 years) in a rural outpatient clinic. Patients with a diagnosis of heart disease were excluded. The patients were divided into two groups by the values of NT-proBNP: high NT-proBNP group (>400 pg/mL) and low NT-proBNP group (≤400 pg/mL) according to Japanese guidelines...
November 17, 2016: Geriatrics & Gerontology International
https://www.readbyqxmd.com/read/27858232/pulmonary-hypertension-in-heart-failure-patients-pathophysiology-and-prognostic-implications
#16
REVIEW
Marco Guazzi, Valentina Labate
Pulmonary hypertension (PH) due to left heart disease (LHD), i.e., group 2 PH, is the most common reason for increased pressures in the pulmonary circuit. Although recent guidelines incorporate congenital heart disease in this classification, left-sided heart diseases of diastolic and systolic origin including valvular etiology are the vast majority. In these patients, an increased left-sided filling pressure triggers a multistage hemodynamic evolution that ends into right ventricular failure through an initial passive increase in pulmonary artery pressure complicated over time by pulmonary vasoconstriction, endothelial dysfunction, and remodeling of the small-resistance pulmonary arteries...
November 17, 2016: Current Heart Failure Reports
https://www.readbyqxmd.com/read/27855806/long-term-prognostic-value-of-cardiac%C3%A2-magnetic-resonance-in-left%C3%A2-ventricle-noncompaction-a-prospective-multicenter-study
#17
Daniele Andreini, Gianluca Pontone, Jan Bogaert, Alberto Roghi, Andrea Barison, Juerg Schwitter, Saima Mushtaq, Georgios Vovas, Paola Sormani, Giovanni D Aquaro, Pierre Monney, Chiara Segurini, Marco Guglielmo, Edoardo Conte, Laura Fusini, Antonio Dello Russo, Massimo Lombardi, Paola Gripari, Andrea Baggiano, Cesare Fiorentini, Federico Lombardi, Antonio L Bartorelli, Mauro Pepi, Pier Giorgio Masci
BACKGROUND: Cardiac magnetic resonance (CMR) is useful for the diagnosis of left ventricular noncompaction (LVNC). However, there are limited data regarding its prognostic value. OBJECTIVES: The goal of this study was to evaluate the prognostic relevance of CMR findings in patients with LVNC. METHODS: A total of 113 patients with an echocardiographic diagnosis of LVNC underwent CMR at 5 referral centers. CMR diagnostic criterion of LVNC (noncompacted/compacted ratio >2...
November 15, 2016: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/27853260/the-synthetic-antimicrobial-peptide-19-2-5-attenuates-septic-cardiomyopathy-and-prevents-down-regulation-of-serca2-in-polymicrobial-sepsis
#18
Lukas Martin, Klemens Horst, Fausto Chiazza, Silvia Oggero, Massimo Collino, Klaus Brandenburg, Frank Hildebrand, Gernot Marx, Christoph Thiemermann, Tobias Schuerholz
An impairment of cardiac function is a key feature of the cardiovascular failure associated with sepsis. Although there is some evidence that suppression of sarcoplasmic reticulum Ca(2+)-ATP-ase (SERCA2) contributes to septic cardiomyopathy, it is not known whether prevention of the down-regulation of SERCA2 improves outcome in sepsis. Thus, we investigated whether the administration of the synthetic antimicrobial peptide Pep2.5 may attenuate the cardiac dysfunction in murine polymicrobial sepsis through regulating SERCA2 expression...
November 17, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27833993/galectin-3-in-children-with-chronic-heart-failure-with-normal-and-reduced-ejection-fraction-relationship-to-disease-severity
#19
Alyaa Amal Kotby, Omneya Ibrahim Youssef, Mohamed Omar Elmaraghy, Osama Salah El Sharkawy
Heart failure (HF) progression has not been studied in pediatric patients as well as HF in patients with a normal ejection fraction (HFNEF). We aimed to evaluate galactin-3 in children with HFNEF and reduced ejection fraction (HFREF) and its correlation to disease severity and progression. This cross-sectional study involved 45 chronic HF patients taking G1a (23 HFNEF children) and G1b (22 HFREF children) compared to 45 age- and sex-matched controls (G2) subjected to history taking, Ross functional HF classification, conventional and tissue Doppler echocardiographic systolic and diastolic function assessment (FS%, E/A, S m, E m/A m, E/E m) and laboratory investigations [glomerular filtration rate, serum galactin-3 level (ELISA)]...
November 11, 2016: Pediatric Cardiology
https://www.readbyqxmd.com/read/27818784/red-cell-distribution-width-and-mortality-in-acute-heart-failure-patients-with-preserved-and-reduced-ejection-fraction
#20
Konstantinos Sotiropoulos, Patrick Yerly, Pierre Monney, Antoine Garnier, Julien Regamey, Olivier Hugli, David Martin, Melanie Metrich, Jean-Philippe Antonietti, Roger Hullin
BACKGROUND: Elevated red blood cell distribution width (RDW) is a valid predictor of outcome in acute heart failure (AHF). It is unknown whether elevated RDW remains predictive in AHF patients with either preserved left ventricular ejection fraction (LVEF) ≥50% or reduced LVEF (<50%). METHODS AND RESULTS: Prospective local registry including 402 consecutive hospitalized AHF patients without acute coronary syndrome or need of intensive care. The primary outcome was all-cause mortality (ACM) at 1 year after admission...
September 2016: ESC Heart Failure
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