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Heart failure, diastolic failure, systolic failure

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https://www.readbyqxmd.com/read/29457270/clinical-and-echocardiographic-characteristics-of-patients-in-sinus-rhythm-normal-left-ventricular-function-and-indeterminate-diastolic-function
#1
Matan Shimron, Lynne Williams, Yevgeni Hazanov, Diab Ghanim, Wadia Kinany, Offer Amir, Shemy Carasso
BACKGROUND: Diastolic dysfunction (DDFx) is the major underlying mechanism of heart failure with preserved left ventricular ejection fraction (EF). Yet, the echocardiographic diagnosis of DDFx in patients in sinus rhythm is challenging and up to 25% of studies have discrepant measures making assessment of DDFx indeterminate. We aimed to describe the clinical and echocardiographic characteristics of patients with indeterminate diastolic function compared to patients with definite normal and abnormal diastolic function...
February 19, 2018: Echocardiography
https://www.readbyqxmd.com/read/29454775/left-ventricular-dysfunction-and-exercise-capacity-trajectory-implications-for-subclinical-heart-failure-staging-criteria
#2
Julian W Sacre, Chiew Wong, Yih-Kai Chan, Melinda J Carrington, Simon Stewart, Bronwyn A Kingwell
OBJECTIVES: This study aimed to determine the association of stage B heart failure (SBHF) and its constituent left ventricular (LV) abnormalities with trajectory of exercise capacity over time, and assess whether this association is modified by reversion of these LV abnormalities to normal. BACKGROUND: The LV abnormalities of SBHF may coincide with a reduction in exercise capacity that precedes the overt exercise intolerance of clinical heart failure (HF). Determining the predictive capacity of established and novel SBHF criteria for exercise capacity decline may improve HF risk stratification...
February 9, 2018: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/29453696/interrelationship-between-diabetes-mellitus-and-heart-failure-the-role-of-peroxisome-proliferator-activated-receptors-in-left-ventricle-performance
#3
REVIEW
Evangelos Oikonomou, Konstantinos Mourouzis, Petros Fountoulakis, Georgios Angelos Papamikroulis, Gerasimos Siasos, Alexis Antonopoulos, Georgia Vogiatzi, Sotiris Tsalamadris, Manolis Vavuranakis, Dimitris Tousoulis
Heart failure (HF) is a common cardiac syndrome, whose pathophysiology involves complex mechanisms, some of which remain unknown. Diabetes mellitus (DM) constitutes not only a glucose metabolic disorder accompanied by insulin resistance but also a risk factor for cardiovascular disease and HF. During the last years though emerging data set up, a bidirectional interrelationship between these two entities. In the case of DM impaired calcium homeostasis, free fatty acid metabolism, redox state, and advance glycation end products may accelerate cardiac dysfunction...
February 17, 2018: Heart Failure Reviews
https://www.readbyqxmd.com/read/29449367/load-independent-systolic-and-diastolic-right-ventricular-function-in-heart-failure-with-preserved-ejection-fraction-as-assessed-by-resting-and-handgrip-exercise-pressure-volume-loops
#4
Karl-Philipp Rommel, Maximilian von Roeder, Christian Oberueck, Konrad Latuscynski, Christian Besler, Stephan Blazek, Thomas Stiermaier, Karl Fengler, Volker Adams, Marcus Sandri, Axel Linke, Gerhard Schuler, Holger Thiele, Philipp Lurz
BACKGROUND: Although systolic right ventricular (RV) dysfunction has been shown to be a potent predictor for adverse outcomes in patients with heart failure with preserved ejection fraction (HFpEF), RV functional abnormalities in the course of the syndrome are not well characterized. We, therefore, sought to assess load-independent and load-dependent systolic and diastolic characteristics of RV function in stable outpatients with HFpEF. METHODS AND RESULTS: We invasively obtained RV and left ventricular pressure-volume loops in 24 HFpEF patients and 9 patients without heart failure symptoms with a conductance catheter during basal conditions and handgrip exercise...
February 2018: Circulation. Heart Failure
https://www.readbyqxmd.com/read/29449364/diabetic-cardiomyopathy-an-update-of-mechanisms-contributing-to-this-clinical-entity
#5
REVIEW
Guanghong Jia, Michael A Hill, James R Sowers
Heart failure and related morbidity and mortality are increasing at an alarming rate, in large part, because of increases in aging, obesity, and diabetes mellitus. The clinical outcomes associated with heart failure are considerably worse for patients with diabetes mellitus than for those without diabetes mellitus. In people with diabetes mellitus, the presence of myocardial dysfunction in the absence of overt clinical coronary artery disease, valvular disease, and other conventional cardiovascular risk factors, such as hypertension and dyslipidemia, has led to the descriptive terminology, diabetic cardiomyopathy...
February 16, 2018: Circulation Research
https://www.readbyqxmd.com/read/29446224/comparative-effects-of-small-intestinal-glucose-on-blood-pressure-heart-rate-and-noradrenaline-responses-in-obese-and-healthy-subjects
#6
Laurence G Trahair, Tongzhi Wu, Christine Feinle-Bisset, Chinmay S Marathe, Christopher K Rayner, Michael Horowitz, Karen L Jones
Meal consumption leads to an increase in sympathetic output to compensate for hemodynamic changes and maintain blood pressure (BP). Obesity is associated with a blunting of the sympathetic response to meal ingestion, but interpretation of studies investigating these responses is compromised by their failure to account for the rate of gastric emptying, which is an important determinant of postprandial cardiovascular and sympathetic responses and, in both health and obesity, exhibits a wide interindividual variation...
February 2018: Physiological Reports
https://www.readbyqxmd.com/read/29433967/role-of-myocardial-collagen-degradation-and-fibrosis-in-right-ventricle-dysfunction-in-transposition-of-the-great-arteries-after-atrial-switch
#7
Magalie Ladouceur, Stephanie Baron, Valérie Nivet-Antoine, Gérard Maruani, Gilles Soulat, Helena Pereira, Anne Blanchard, Pierre Boutouyrie, Jean Louis Paul, Elie Mousseaux
BACKGROUND: Heart failure is a serious event in patients with transposition of the great arteries (D-TGA) after atrial redirection surgery. We aimed to determine the association between myocardial fibrosis and systolic and diastolic systemic right ventricle (sRV) dysfunction. METHODS: Diastolic and systolic function of sRV was prospectively assessed using echocardiography and cardiac magnetic resonance imaging (CMR) in 48 patients with atrially switched D-TGA and 26 healthy subjects...
January 31, 2018: International Journal of Cardiology
https://www.readbyqxmd.com/read/29430747/left-atrial-rather-than-left-ventricular-impaired-mechanics-are-associated-with-the-pro-fibrotic-st2-marker-and-outcomes-in-heart-failure-with-preserved-ejection-fraction
#8
A I Nagy, C Hage, B Merkely, E Donal, J-C Daubert, C Linde, L H Lund, A Manouras
AIMS: Left ventricular (LV) mechanics have been extensively investigated in heart failure with preserved ejection fraction (HFpEF) overshadowing for a long time the potential role of left atrium (LA) in that setting. Soluble suppression of tumorigenicity-2 receptor (ST2) is a novel biomarker of pro-fibrotic burden in HF. We hypothesized that due to the thinner LA wall, the fibrotic myocardial changes in HFpEF as indicated by elevated ST2 levels might more readily be reflected by impairments in the LA rather than the LV performance...
February 12, 2018: Journal of Internal Medicine
https://www.readbyqxmd.com/read/29428927/dancing-for-healthy-aging-functional-and-metabolic-perspectives
#9
Josianne Rodrigues-Krause, Mauricio Krause, Alvaro Reischak-Oliveira
Context • Dancing has been used as a form of exercise to improve functional and metabolic outcomes during aging. The field lacks randomized, clinical trials (RCTs) evaluating metabolic outcomes related to dance interventions, but dancing may be a form of exercise that could induce positive effects on the metabolic health of older adults. However, primary studies seem very heterogonous regarding the trial designs, characteristics of the interventions, the methods for outcomes assessments, statistical powers, and methodological quality...
February 10, 2018: Alternative Therapies in Health and Medicine
https://www.readbyqxmd.com/read/29420830/acellular-therapeutic-approach-for-heart-failure-in%C3%A2-vitro-production-of-extracellular-vesicles-from-human-cardiovascular-progenitors
#10
Nadia El Harane, Anaïs Kervadec, Valérie Bellamy, Laetitia Pidial, Hany J Neametalla, Marie-Cécile Perier, Bruna Lima Correa, Léa Thiébault, Nicolas Cagnard, Angéline Duché, Camille Brunaud, Mathilde Lemitre, Jeanne Gauthier, Alexandra T Bourdillon, Marc P Renault, Yeranuhi Hovhannisyan, Solenne Paiva, Alexandre R Colas, Onnik Agbulut, Albert Hagège, Jean-Sébastien Silvestre, Philippe Menasché, Nisa K E Renault
Aims: We have shown that extracellular vesicles (EVs) secreted by embryonic stem cell-derived cardiovascular progenitor cells (Pg) recapitulate the therapeutic effects of their parent cells in a mouse model of chronic heart failure (CHF). Our objectives are to investigate whether EV released by more readily available cell sources are therapeutic, whether their effectiveness is influenced by the differentiation state of the secreting cell, and through which mechanisms they act. Methods and results: The total EV secreted by human induced pluripotent stem cell-derived cardiovascular progenitors (iPSC-Pg) and human induced pluripotent stem cell-derived cardiomyocytes (iPSC-CM) were isolated by ultracentrifugation and characterized by Nanoparticle Tracking Analysis, western blot, and cryo-electron microscopy...
February 6, 2018: European Heart Journal
https://www.readbyqxmd.com/read/29419560/implications-of-the-new-national-guidelines-for-hypertension
#11
Wilbert S Aronow, William H Frishman
Automated validated devices should be used for measuring blood pressure (BP). A systolic BP between 120 and 129 mm Hg with a diastolic BP < 80 mm Hg should be treated by lifestyle measures. Lifestyle measures plus BP lowering drugs should be used for secondary prevention of recurrent cardiovascular disease (CVD) events in persons with clinical CVD (coronary heart disease, congestive heart failure, and stroke) and an average systolic BP of ≥130 mm Hg or an average diastolic BP ≥ 80 mm Hg. Lifestyle measures plus BP lowering drugs should be used for primary prevention of CVD in persons with an estimated 10-year risk of atherosclerotic CVD ≥ 10% and an average systolic BP ≥130 mm Hg or an average diastolic BP ≥ 80 mm Hg...
March 2018: Cardiology in Review
https://www.readbyqxmd.com/read/29417020/prevalence-of-left-ventricular-dysfunction-in-rheumatoid-arthritis
#12
A S Renjith, Vishal Marwaha, N Aggarwal, Varghese Koshy, V K Singal, K V S Hari Kumar
Background: Rheumatoid arthritis (RA) is a polyarticular disorder with many extra-articular features. Cardiovascular disorders, including heart failure (HF), are the leading causes of mortality in RA patients. We studied the prevalence of left ventricular dysfunction (LVD) in patients with RA. Materials and Methods: In this cross-sectional study, we evaluated 100 consecutive patients with RA (aged >18 years and duration >1 year) for the presence of LVD. We excluded patients with known cardiac and systemic disorders that may contribute to LVD...
July 2017: Journal of Family Medicine and Primary Care
https://www.readbyqxmd.com/read/29411328/hyperuricemia-is-associated-with-short-term-outcomes-in-elderly-patients-with-acute-myocardial-infarction
#13
Li Li, Yi Ma, Xiao-Ming Shang, Ye Hong, Jian-Hui Wang, Zheng Tan, Ya-Jun Wang, Xue-Bin Geng
BACKGROUND: Although a lot of studies have  shown serum uric acid (SUA) could be a marker of adverse prognosis in patients with acute myocardial infarction, the role of SUA as a risk factor for myocardial infarction is controversial. This study aimed to evaluate the association between hyperuricemia and short-term outcomes of elderly patients with acute ST-segment elevation myocardial infarction (STEMI). METHODS: Six hundred and seventy-three elderly patients (≥ 60 years) were divided into high-SUA-level group (group H: N = 168) and low-SUA-level group (group L: N = 505) according to the SUA levels on admission...
February 6, 2018: Aging Clinical and Experimental Research
https://www.readbyqxmd.com/read/29397143/arterial-pulse-pressure-and-postoperative-morbidity-in-high-risk-surgical-patients
#14
G L Ackland, T E F Abbott, R M Pearse, S N Karmali, J Whittle, G Minto
BACKGROUND: Systemic arterial pulse pressure (systolic minus diastolic pressure) ≤53 mm Hg in patients with cardiac failure is correlated with reduced stroke volume and is independently associated with accelerated morbidity and mortality. Given that deconditioned surgical and heart failure patients share similar cardiopulmonary physiology, we examined whether lower pulse pressure is associated with excess morbidity after major surgery. METHODS: This was a prospective observational cohort study of patients deemed by their preoperative assessors to be at higher risk of postoperative morbidity...
January 2018: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/29394350/blood-pressure-and-cardiovascular-outcomes-in-patients-with-diabetes-and-high-cardiovascular-risk
#15
Brian A Bergmark, Benjamin M Scirica, Ph Gabriel Steg, Christina L Fanola, Yared Gurmu, Ofri Mosenzon, Avivit Cahn, Itamar Raz, Deepak L Bhatt
Aims: Optimal blood pressure for prevention of cardiovascular (CV) events in patients with Type 2 diabetes mellitus (T2DM) remains uncertain and there is concern for increased risk with low diastolic blood pressure (DBP). This study analysed the association between blood pressure and CV outcomes in high-risk patients with T2DM. Methods and results: Patients with T2DM and elevated CV risk were enrolled in the Saxagliptin Assessment of Vascular Outcomes Recorded in patients with diabetes mellitus-Thrombolysis in Myocardial Infarction 53 trial...
January 31, 2018: European Heart Journal
https://www.readbyqxmd.com/read/29393391/stage%C3%A2-dependent-changes-of-%C3%AE-2%C3%A2-adrenergic-receptor-signaling-in-right-ventricular-remodeling-in-monocrotaline%C3%A2-induced-pulmonary-arterial-hypertension
#16
Fengjiao Sun, Zhiqiang Lu, Yidan Zhang, Shihan Geng, Mengxi Xu, Liman Xu, Yingying Huang, Pengwei Zhuang, Yanjun Zhang
Right ventricular (RV) remodeling coupled with extensive apoptosis in response to unrestrained biomechanical stress may lead to RV failure (RVF), which is the immediate cause of death in the majority of patients with pulmonary arterial hypertension (PAH). Overexpression of β2‑adrenergic receptor (β2‑AR) signaling has been reported to induce myocardiotoxicity in patients with left heart failure. However, the role of β2‑AR signaling in the pathophysiology of PAH development has remained elusive. To address this issue, the present study investigated the changes in cardiopulmonary function and structure, as well as the expression of regulators of fibrosis and apoptosis in RVF following monocrotaline (MCT; 60 mg/kg, i...
February 1, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29373336/competing-flow-between-partial-circulatory-support-and-native-cardiac-output-a-clinical-computational-fluid-dynamics-study
#17
Jennifer Engelke, Christof Karmonik, Fabian Rengier, Sasan Partovi, Aron-Frederik Popov, Anja Osswald, Rawa Arif, Bastian Schmack, Philip Raake, André R Simon, Andreas Doesch, Alexander Weymann, Joachim Lotz, Matthias Karck, Arjang Ruhparwar
Partial circulatory support is a promising concept for the treatment of heart failure patients. A better understanding of induced hemodynamic changes is essential for optimizing treatment efficacy. Computational fluid dynamics (CFD) is an alternative method to gain insight into flow phenomena difficult to obtain in vivo. In 10 patients implanted with a Circulite Synergy Micro-pump (HeartWare) (a continuous flow partial circulatory assist device connecting the left atrium to the right subclavian artery), transient CFD simulations were performed...
October 25, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/29370349/left-atrial-appendage-resection-can-be-performed-minimally-invasively-with-good-clinical-and-echocardiographic-outcomes-without-any-severe-risk
#18
Takafumi Inoue, Yoshihiro Suematsu
OBJECTIVES: The adverse effects of left atrial appendage (LAA) closure have not yet been evaluated. This study aimed to prove the safety and low invasiveness of LAA resection through our thoracoscopic stand-alone left atrial appendectomy experience. METHODS: Eighty-seven patients [mean age 68 ± 9 years, 68 men (78%), mean congestive heart failure, hypertension, age ≥ 75 years, diabetes mellitus, prior stroke or transient ischaemic attack to thromboembolism, vascular disease, age 65-74 years and sex category (CHA2DS2-VASc) score 2...
January 22, 2018: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/29369740/exploring-kinetic-energy-as-a-new-marker-of-cardiac-function-in-the-single-ventricle-circulation
#19
James Wong, Radomir Chabiniok, Shane M Tibby, Kuberan Pushparajah, Eva Sammut, David S Celermajer, Daniel Giese, Tarique Hussain, Gerald F Greil, Tobias Schaeffter, Reza Razavi
Ventricular volumetric ejection fraction (VV EF) is often normal in patients with single ventricle circulations despite them experiencing symptoms related to circulatory failure. We sought to determine if kinetic energy (KE) could be a better marker of ventricular performance. KE was prospectively quantified using 4D flow MRI in 41 patients with a single ventricle circulation (aged 0.5 - 28 years) and compared to 43 healthy volunteers (aged 1.5 - 62 years) and 14 patients with left ventricular (LV) dysfunction (aged 28 - 79 years)...
January 25, 2018: Journal of Applied Physiology
https://www.readbyqxmd.com/read/29368192/cirrhotic-cardiomyopathy-is-less-prevalent-in-patients-with-budd-chiari-syndrome-than-cirrhosis-of-liver
#20
Akash Shukla, Pratin Bhatt, Deepak Kumar Gupta, Tejas Modi, Jatin Patel, Milind Phadke, Krantikumar Rathod, Megha Meshram, S J Bhatia
BACKGROUND AND AIM: Cirrhotic cardiomyopathy (CCM) is associated with high mortality after transjugular intrahepatic portosystemic shunt (TIPS) and liver transplantation in patients with cirrhosis. There is no data about the prevalence or impact of CCM in Budd-Chiari syndrome (BCS). We assessed the prevalence of CCM in patients with BCS and its impact on outcome after radiological intervention. METHODS: Thirty-three consecutive patients with BCS (15 men) and 33 controls with hepatitis B-related cirrhosis (18 men, matched for Child-Pugh score) were evaluated with baseline electrocardiography (ECG), echocardiography (ECHO) and dobutamine stress ECHO, and ECG (DSE)...
January 24, 2018: Indian Journal of Gastroenterology: Official Journal of the Indian Society of Gastroenterology
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