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Left ventricular hypertrophy

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https://www.readbyqxmd.com/read/28934669/transforming-growth-factor-beta-tgf-%C3%AE-mediates-cardiac-fibrosis-and-induces-diabetic-cardiomyopathy
#1
REVIEW
Yiyang Yue, Ke Meng, Yuejie Pu, Xiaoming Zhang
Cardiovascular diseases account for the major cause of morbidity and mortality among individuals with diabetes. The diabetic cardiomyopathy (DCM) is a type of diabetic cardiovascular disease, which further directs to the heart failure. The researchers found that diabetes induced cardiac fibrosis plays a vital role in several of the pathological changes that associated with DCM, causing left ventricular hypertrophy (LVH), diastolic dysfunction and systolic dysfunction. However, the mechanisms involved in the pathogenesis of DCM are still elusive...
September 1, 2017: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/28931920/evaluation-of-circulating-levels-of-ccn2-connective-tissue-growth-factor-in-patients-with-st-elevation-myocardial-infarction
#2
Vibeke Ritschel, Christian Shetelig, Ingebjørg Seljeflot, Shanmuganathan Limalanathan, Pavel Hoffmann, Sigrun Halvorsen, Harald Arnesen, Jan Eritsland, Geir Øystein Andersen
CCN2/Connective tissue growth factor seems to be involved in development of cardiac hypertrophy and fibrosis, but a possible cardioprotective role in left ventricular (LV) remodelling following myocardial infarction has also been suggested. The main objectives of the study were therefore to investigate whether circulating CCN2 levels were associated with infarct size, LV function, adverse remodelling or clinical outcome in two cohorts of patients with ST-elevation myocardial infarction (STEMI). CCN2 was measured in 988 patients 18 hours after PCI and clinical events were recorded after 55 months in the BAMI cohort...
September 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28931529/electrocardiographic-strain-pattern-is-associated-with-left-ventricular-concentric-remodeling-scar-and-mortality-over-10%C3%A2-years-the-multi-ethnic-study-of-atherosclerosis
#3
Yuko Y Inoue, Elsayed Z Soliman, Kihei Yoneyama, Bharath Ambale-Venkatesh, Colin O Wu, Rodney Sparapani, David A Bluemke, João A C Lima, Hiroshi Ashikaga
BACKGROUND: Both ECG strain pattern and QRS measured left ventricular (LV) hypertrophy criteria are associated with LV hypertrophy and have been used for risk stratification. However, the independent predictive value of ECG strain in apparently healthy individuals in predicting mortality and adverse cardiovascular events is unclear. METHODS AND RESULTS: MESA (Multi-Ethnic Study of Atherosclerosis) is a multicenter, prospective cohort of 6441 participants (mean age, 62 years; 54% women)...
September 20, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28929454/antihypertensive-therapies-and-left-ventricular-hypertrophy
#4
REVIEW
Elsayed Z Soliman, Ronald J Prineas
PURPOSE OF REVIEW: It is widely accepted that successful lowering of blood pressure (BP) in patients with hypertension leads to regression of left ventricular hypertrophy (LVH). However, whether differences exist among pharmacological BP-lowering therapies is debated. In this report, we discuss these differences in light of recent literature and the position of extant practice guidelines. RECENT FINDINGS: Studies comparing the effects of antihypertensive classes on LVH regression reached different conclusions, but the overall direction which is reflected in current society guidelines is that successful lowering of BP is more important than selection of an individual antihypertensive class...
September 19, 2017: Current Hypertension Reports
https://www.readbyqxmd.com/read/28927959/layer-specific-deformation-of-the-left-ventricle-in-uncomplicated-patients-with-type-2-diabetes-and-arterial-hypertension
#5
Marijana Tadic, Cesare Cuspidi, Vladan Vukomanovic, Sanja Ilic, Philippe Obert, Vesna Kocijancic, Vera Celic
BACKGROUND: Detailed analysis of layer-specific mechanical changes in patients with type 2 diabetes mellitus (DM) might improve insight into left ventricular (LV) remodelling and diabetic cardiomyopathy. AIM: We sought to investigate layer-specific LV deformation in patients with DM, with and without hypertension. METHODS: This cross-sectional study included 146 subjects (44 controls; 48 patients with DM; 54 patients with DM and hypertension) who underwent complete examination by two-dimensional echocardiography (2DE), including multilayer strain analysis...
September 15, 2017: Archives of Cardiovascular Diseases
https://www.readbyqxmd.com/read/28923628/role-of-coronary-angiography-in-pre-liver-transplantation-cardiac-evaluation-experience-from-an-asian-transplant-institution
#6
N Q Pang, W C A Kow, J H Law, L T T Pan, B L K Lim, C C R Wong, K Y S Chang, I S Ganpathi, K Madhavan
BACKGROUND: Liver transplant (LT) patients with significant coronary artery disease (CAD) have poorer outcomes. Pre-LT coronary angiography (CA) is associated with significant complications in cirrhotic patients. METHODS: This study aimed to identify predictors of abnormal CA in pre-LT cardiac assessment and to develop a predictive model to reduce unnecessary CA. From January 2006 to June 2013, 122 patients underwent CA based on the current institutional protocol...
October 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28923022/the-association-of-sleep-disordered-breathing-with-left-ventricular-remodeling-in-cad-patients-a-cross-sectional-study
#7
Audrius Alonderis, Nijole Raskauskiene, Vaidute Gelziniene, Narseta Mickuviene, Julija Brozaitiene
BACKGROUND: There is still insufficient knowledge on the potential effect of mild to moderate sleep-disordered breathing (SDB) that is widely prevalent, often asymptomatic, and largely undiagnosed in patients with stable coronary artery disease (CAD). SDB affects 34% of men and 17% of women aged between 30 and 70. The objective of this study was to evaluate the association between SDB and left ventricular (LV) hypertrophy as well as structural remodeling in stable CAD patients. METHODS: The study was based on a cross-sectional design...
September 18, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28921420/causes-of-an-increased-pressure-gradient-through-the-left-ventricular-outflow-tract-a-west-coast-experience
#8
Sayuki Kobayashi, Yoshihiko Sakai, Isao Taguchi, Hiroto Utsunomiya, Takahiro Shiota
BACKGROUND: Left ventricular outflow tract obstruction (LVOTO) occurs from not only obstructive hypertrophic cardiomyopathy but also other conditions such as sigmoid septum or post mitral valve repair. However, the changes of the LVOT pressure gradient (LVOT PG) in LVOTO with various conditions remain unclear. METHODS: The clinical characteristics and echocardiographic parameters of 73 patients with LVOT PG ≥50 mmHg at rest on Doppler ultrasound were retrospectively investigated...
September 18, 2017: Journal of Echocardiography
https://www.readbyqxmd.com/read/28918835/left-ventricular-false-tendons-are-associated-with-left-ventricular-dilation-and-impaired-systolic-and-diastolic-function
#9
Michael E Hall, Joseph A Halinski, Thomas N Skelton, William F Campbell, Michael R McMullan, Robert C Long, Myrna N Alexander, James D Pollard, John E Hall, Ervin R Fox, Michael D Winniford, Daisuke Kamimura
BACKGROUND: Left ventricular false tendons (LVFTs) are chord-like structures that traverse the LV cavity and are generally considered to be benign. However, they have been associated with arrhythmias, LV hypertrophy and LV dilation in some small studies. We hypothesize that LVFTs are associated with LV structural and functional changes assessed by echocardiography. METHODS: We retrospectively evaluated echocardiographic and clinical parameters of 126 patients identified as having LVFTs within the past 2 years and compared them to 85 age-matched controls without LVFTs...
September 2017: American Journal of the Medical Sciences
https://www.readbyqxmd.com/read/28914725/sleep-duration-and-quality-as-related-to-left-ventricular-structure-and-function
#10
Jae-Hon Lee, Sung Keun Park, Jae-Hong Ryoo, Chang-Mo Oh, Jeong Gyu Kang, Rodrigo B Mansur, Jeffrey E Alfonsi, Yena Lee, Sun-Han Shin, Roger S McIntyre, Ju Young Jung
OBJECTIVE: Inadequate sleep is associated with increased risk of cardiovascular events; however, the associations between sleep duration or quality and cardiac function or structure are not well understood. This cross-sectional study was conducted to investigate to what extent sleep duration and quality are associated with left ventricular (LV) diastolic dysfunction or structural deterioration. METHODS: A total of 31,598 healthy Korean adults who received echocardiography and completed the Pittsburg Sleep Quality Index were enrolled in this study...
September 13, 2017: Psychosomatic Medicine
https://www.readbyqxmd.com/read/28912182/hypertrophic-obstructive-cardiomyopathy-surgical-myectomy-and-septal-ablation
#11
REVIEW
Rick A Nishimura, Hubert Seggewiss, Hartzell V Schaff
Hypertrophic cardiomyopathy is a genetic disorder characterized by marked hypertrophy of the myocardium. It is frequently accompanied by dynamic left ventricular outflow tract obstruction and symptoms of dyspnea, angina, and syncope. The initial therapy for symptomatic patients with obstruction is medical therapy with β-blockers and calcium antagonists. However, there remain a subset of patients who have continued severe symptoms, which are unresponsive to medical therapy. These patients can be treated with septal reduction therapy, either surgical septal myectomy or alcohol septal ablation...
September 15, 2017: Circulation Research
https://www.readbyqxmd.com/read/28912181/hypertrophic-cardiomyopathy-genetics-pathogenesis-clinical-manifestations-diagnosis-and-therapy
#12
REVIEW
Ali J Marian, Eugene Braunwald
Hypertrophic cardiomyopathy (HCM) is a genetic disorder that is characterized by left ventricular hypertrophy unexplained by secondary causes and a nondilated left ventricle with preserved or increased ejection fraction. It is commonly asymmetrical with the most severe hypertrophy involving the basal interventricular septum. Left ventricular outflow tract obstruction is present at rest in about one third of the patients and can be provoked in another third. The histological features of HCM include myocyte hypertrophy and disarray, as well as interstitial fibrosis...
September 15, 2017: Circulation Research
https://www.readbyqxmd.com/read/28912039/acquired-heart-disease-superimposed-on-congenital-heart-disease
#13
D Luke Glancy
A 50-year-old man with a murmur since birth developed systemic arterial hypertension as an adult. He came to the hospital because of dyspnea. He had a pulmonic valve ejection click and a murmur of pulmonic stenosis. His echocardiogram showed biventricular hypertrophy, a flat ventricular septum, a D-shaped left ventricle, systolic doming of the pulmonic valve, and Doppler evidence of a 70 mm Hg peak systolic pressure gradient across the pulmonic valve and a peak right ventricular systolic pressure of 100 mm Hg...
August 12, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28910790/the-cardiovascular-burden-in-end-stage-renal-disease
#14
Mario Cozzolino, Andrea Galassi, Francesca Pivari, Paola Ciceri, Ferruccio Conte
It is well documented that chronic kidney disease patients have an extremely high risk of developing cardiovascular (CV) disease (CVD) compared to the general population. Declining renal function itself represents a continuum of CV risk, and in those individuals who survive to reach end-stage renal disease, the risk of suffering a cardiac event is uncomfortably and unacceptably high. Several pathophysiological pathways have been suggested to account for this, including endothelial dysfunction, dyslipidemia, inflammation, left ventricular hypertrophy, troponins, phosphate, vitamin D, fibroblast growth factor-23, and NT-proBNP...
2017: Contributions to Nephrology
https://www.readbyqxmd.com/read/28904721/septal-alcoholization-in-hypertrophic-cardiomyopathy-about-11-cases
#15
Yibar Kambiré, Georges Rosario Christian Millogo, Claire Dauphin, Jean-René Lusson
Outcomes of septal alcoholization in hypertrophic obstructive cardiomyopathy are not enough studied in all centers. The purpose of this study was to determine the outcomes of septal alcoholization in hypertrophic obstructive cardiomyopathy in our hospital. A retrospective and prospective descriptive study focused on all patients aged at least 18 years treated by alcohol septal ablation between July 2005 and June 2010 in the cardiology unit of Clermont-Ferrand teaching Hospital. The inclusion criteria were, hypertrophic obstructive cardiomyopathy with left ventricular outflow tract obstruction ≥ 50 mmHg, symptomatic despite optimal medical therapy...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28902663/aldosterone-induces-left-ventricular-subclinical-systolic-dysfunction-a-strain-imaging-study
#16
Zheng-Wei Chen, Kuan-Chih Huang, Jen-Kuang Lee, Lung-Chun Lin, Ching-Way Chen, Yi-Yao Chang, Che-Wei Liao, Vin-Cent Wu, Chi-Shen Hung, Yen-Hung Lin
BACKGROUND: Primary aldosteronism is associated with a higher incidence of left ventricular (LV) hypertrophy and diastolic dysfunction than essential hypertension. However, systolic function via endocardial measurements is similar between patients with primary aldosteronism and essential hypertension. Speckle-tracking echocardiography is a sensitive tool which can detect subclinical impairments in systolic function. The aim of this study was to investigate aldosterone-induced subclinical impairments in systolic function...
September 11, 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28902648/-fabry-disease-an-overlooked-diagnosis-in-adult-cardiac-patients
#17
Meral Kayıkçıoğlu, Evrim Şimşek, Sema Kalkan Uçar, Selen Bayraktaroğlu, Hüseyin Onay, Eser Sözmen, Mahmut Çoker
Fabry disease is a rare, X-linked, lysosomal glycosphingolipid storage disorder. A deficiency of the enzyme alpha-galactosidase results in intracellular accumulation of globotriaosylceramide in multiple cell types, such as those of the nerves, kidneys, cardiac, and cutaneous tissues, leading to a multisystem disease. Male patients are more severely affected; however, heterozygous female patients may also be afflicted, though often the symptoms develop later. Cardiac involvement can include left ventricular hypertrophy, conduction abnormalities, arrhythmias, valvular abnormalities, and heart failure...
September 2017: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/28900153/genetic-ablation-of-fgf23-or-klotho-does-not-modulate-experimental-heart-hypertrophy-induced-by-pressure-overload
#18
Svetlana Slavic, Kristopher Ford, Magalie Modert, Amarela Becirovic, Stephan Handschuh, Andreas Baierl, Nejla Katica, Ute Zeitz, Reinhold G Erben, Olena Andrukhova
Left ventricular hypertrophy (LVH) ultimately leads to heart failure in conditions of increased cardiac pre- or afterload. The bone-derived phosphaturic and sodium-conserving hormone fibroblast growth factor-23 (FGF23) and its co-receptor Klotho have been implicated in the development of uremic LVH. Using transverse aortic constriction (TAC) in gene-targeted mouse models, we examine the role of Fgf23 and Klotho in cardiac hypertrophy and dysfunction induced by pressure overload. TAC profoundly increases serum intact Fgf23 due to increased cardiac and bony Fgf23 transcription and downregulation of Fgf23 cleavage...
September 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28895061/valvular-heart-disease-in-women-differential-remodeling-and-response-to-new-therapies
#19
REVIEW
Jaya Chandrasekhar, George Dangas, Roxana Mehran
In the United States, valvular heart disease (VHD) has a prevalence of 2.5%, most commonly presenting as aortic stenosis (AS) or mitral valve regurgitation (MR) and increasingly observed to be of a degenerative etiology. Women frequently have latent symptoms despite significant disease, and it is therefore pertinent to consider both clinical symptoms and imaging findings for decision-making on treatment. Indeed, significant advances have been made in noninvasive imaging allowing for more accurate diagnosis and disease prognostication...
September 11, 2017: Current Treatment Options in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28893641/high-intensity-interval-training-has-beneficial-effects-on-cardiac-remodeling-through-local-renin-angiotensin-system-modulation-in-mice-fed-high-fat-or-high-fructose-diets
#20
Guilherme de Oliveira Sá, Vívian Dos Santos Neves, Shyrlei R de Oliveira Fraga, Vanessa Souza-Mello, Sandra Barbosa-da-Silva
AIMS: HIIT (high-intensity interval training) has the potential to reduce cardiometabolic risk factors, but the effects on cardiac remodeling and local RAS (renin-angiotensin system) in mice fed high-fat or high-fructose diets still need to be fully addressed. MAIN METHODS: Sixty male C57BL/6 mice (12weeks old) were randomly divided into three groups, control (C), High-fat (HF), or High-fructose diet (HRU) and were monitored for eight weeks before being submitted to the HIIT...
September 8, 2017: Life Sciences
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