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https://www.readbyqxmd.com/read/28350861/efficacy-and-effects-on-cardiac-function-of-radiofrequency-catheter-ablation-vs-direct-current-cardioversion-of-persistent-atrial-fibrillation-with-left-ventricular-systolic-dysfunction
#1
Maojing Wang, Shanglang Cai, Wei Ding, Yujie Deng, Qing Zhao
OBJECTIVE: To evaluate the effect of catheter ablation vs. direct current synchronized cardioversion (DCC) in patients with persistent atrial fibrillation (AF) and left ventricular systolic dysfunction, and to define baseline features of patients that will get more benefit from ablation. METHODS: From July 2013 to October 2014, 97 consecutive single-center patients with persistent AF and symptomatic heart failure (left ventricular ejection fraction (LVEF) <50%) underwent DCC followed by amiodarone (n = 40) or circumferential pulmonary vein isolation (PVI; n = 57) according to patient's preference were recruited in the study...
2017: PloS One
https://www.readbyqxmd.com/read/28350576/absence-of-resting-cardiovascular-dysfunction-in-middle-aged-endurance-trained-athletes-with-exaggerated-exercise-blood-pressure-responses
#2
Katharine D Currie, Ryan T Sless, Catherine F Notarius, Scott G Thomas, Jack M Goodman
OBJECTIVE: Untrained individuals with exaggerated blood pressure (EBP) responses to graded exercise testing are characterized as having resting dysfunction of the sympathetic and cardiovascular systems. The purpose of this study was to determine the resting cardiovascular state of endurance-trained individuals with EBP through a comparison of normotensive athletes with and without EBP. METHODS: EBP was defined as a maximal systolic blood pressure (SBP) at least 190 mmHg and at least 210 mmHg for women and men respectively, in response to a graded exercise test...
March 27, 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28346853/high-prevalence-of-vitamin-d-deficiency-and-correlation-of-serum-vitamin-d-with-cardiovascular-risk-in-patients-with-metabolic-syndrome
#3
Mohammad J Alkhatatbeh, Khalid K Abdul-Razzak, Lubna Q Khasawneh, Nesreen A Saadeh
BACKGROUND: Metabolic syndrome (MetS) identifies subjects with increased risk of cardiovascular disease when they have a combination of insulin resistance, obesity, hypertension, hyperglycemia, low high-density lipoprotein cholesterol (HDL-C), and elevated triglycerides (TGs). Increasing evidence suggests that vitamin D deficiency could be associated with diabetes and MetS. The aim is to assess if 25-hydroxyvitamin D (25-OHD) is correlated with cardiovascular risk components of MetS. METHODS: A cross-sectional study involved 124 diabetic patients with MetS according to International Diabetes Federation definition...
March 27, 2017: Metabolic Syndrome and related Disorders
https://www.readbyqxmd.com/read/28346522/decline-in-lung-function-rather-than-baseline-lung-function-is-associated-with-the-development-of-metabolic-syndrome-a-six-year-longitudinal-study
#4
Soo Kyoung Kim, Ji Cheol Bae, Jong-Ha Baek, Jae Hwan Jee, Kyu Yeon Hur, Moon-Kyu Lee, Jae Hyeon Kim
This study was conducted to investigate whether baseline lung function or change in lung function is associated with the development of metabolic syndrome (MS) in Koreans. We analyzed clinical and laboratory data from 3,768 Koreans aged 40-60 years who underwent medical check-ups over a six-year period between 2006 and 2012. We calculated the percent change in forced vital capacity (FVC) and forced expiratory volume in 1 s (FEV1) over the study period. We tested for an association between baseline lung function or lung function change during the follow-up period and the development of MS...
2017: PloS One
https://www.readbyqxmd.com/read/28345052/cardiac-myosin-binding-protein-c-ser-302-phosphorylation-regulates-cardiac-%C3%AE-adrenergic-reserve
#5
Ranganath Mamidi, Kenneth S Gresham, Jiayang Li, Julian E Stelzer
Phosphorylation of cardiac myosin binding protein-C (MyBP-C) modulates cardiac contractile function; however, the specific roles of individual serines (Ser) within the M-domain that are targets for β-adrenergic signaling are not known. Recently, we demonstrated that significant accelerations in in vivo pressure development following β-agonist infusion can occur in transgenic (TG) mouse hearts expressing phospho-ablated Ser(282) (that is, TG(S282A)) but not in hearts expressing phospho-ablation of all three serines [that is, Ser(273), Ser(282), and Ser(302) (TG(3SA))], suggesting an important modulatory role for other Ser residues...
March 2017: Science Advances
https://www.readbyqxmd.com/read/28344440/increased-heterogeneity-of-ventricular-repolarization-in-myotonic-dystrophy-type-1-population
#6
Vincenzo Russo, Andrea Antonio Papa, Anna Rago, Paola D'Ambrosio, Giovanni Cimmino, Alberto Palladino, Luisa Politano, Gerardo Nigro
Sudden cardiac death in myotonic dystrophy type I (DM1) patients can be attributed to atrioventricular blocks as far as to the development of life-threatening arrhythmias which occur even in hearts with normal left ventricular systolic and diastolic function. Heterogeneity of ventricular repolarization is considered to provide an electrophysiological substrate for malignant arrhythmias. QTc dispersion (QTc-D), JTc dispersion (JTc-D) and transmural dispersion of repolarization (TDR) could reflect the physiological variability of regional and transmural ventricular repolarization...
October 2016: Acta Myologica: Myopathies and Cardiomyopathies: Official Journal of the Mediterranean Society of Myology
https://www.readbyqxmd.com/read/28344422/impaired-left-ventricular-diastolic-functions-and-thickened-epicardial-adipose-tissue-in-rheumatoid-arthritis-patients-is-correlated-with-das-28-score
#7
Sertac Alpaydın, Zafer Buyukterzi, Halil Ekrem Akkurt, Halim Yılmaz
BACKGROUND: Rheumatoid arthritis (RA) is a chronic inflammatory disease that is known to be associated with high cardiovascular (CV) morbidity and mortality. In this study, we aimed to demonstrate whether RA disease activity reflected with disease activity score-28 (DAS-28) had an impact on left ventricular diastolic functions and epicardial adipose tissue (EAT) thickness in RA patients with no traditional CV risk factors. METHODS: In this retrospective study, 41 patients newly diagnosed with RA were included...
March 2017: Acta Cardiologica Sinica
https://www.readbyqxmd.com/read/28344217/left-ventricular-twist-was-decreased-in-isolated-left-bundle-branch-block-with-preserved-ejection-fraction
#8
Sabiye Yılmaz, Harun Kılıc, Mustafa Tarık Ağac, Nurgül Keser, Efe Edem, Saadet Demirtaş, Mehmet Bülent Vatan, Ramazan Akdemir, Hüseyin Gündüz
OBJECTIVE: Left ventricular (LV) rotation and twist play an important role in LV contraction and relaxation. Left bundle branch block (LBBB) deteriorates both diastolic and systolic functions. We evaluated the LV twist in patients with LBBB and preserved ejection fraction (EF) (>50%) to determine twist as a potential marker for subtle myocardial dysfunction. METHODS: This observational cross-sectional study included 34 LBBB patients with preserved EF who were free from ischemic and valvular disease (Group 1) and 36 healthy controls (Group 2)...
March 22, 2017: Anatolian Journal of Cardiology
https://www.readbyqxmd.com/read/28343262/cavin-1-deficiency-modifies-myocardial-and-coronary-function-stretch-responses-and-ischaemic-tolerance-roles-of-nos-over-activity
#9
Mika Kaakinen, Melissa E Reichelt, Zhibin Ma, Charles Ferguson, Nick Martel, Enzo R Porrello, James E Hudson, Walter G Thomas, Robert G Parton, John P Headrick
Caveolae and associated cavin and caveolins may govern myocardial function, together with responses to mechanical and ischaemic stresses. Abnormalities in these proteins are also implicated in different cardiovascular disorders. However, specific roles of the cavin-1 protein in cardiac and coronary responses to mechanical/metabolic perturbation remain unclear. We characterised cardiovascular impacts of cavin-1 deficiency, comparing myocardial and coronary phenotypes and responses to stretch and ischaemia-reperfusion in hearts from cavin-1 (+/+) and cavin-1 (-/-) mice...
May 2017: Basic Research in Cardiology
https://www.readbyqxmd.com/read/28342630/statins-attenuate-but-do-not-eliminate-the-reverse-epidemiology-of-total-serum-cholesterol-in-patients-with-non-ischemic-chronic-heart-failure
#10
Hanna Fröhlich, Nandita Raman, Tobias Täger, Dieter Schellberg, Kevin M Goode, Syed Kazmi, Morten Grundtvig, Torstein Hole, John G F Cleland, Hugo A Katus, Stefan Agewall, Andrew L Clark, Dan Atar, Lutz Frankenstein
BACKGROUND: In patients with chronic heart failure (CHF) increasing levels of total serum cholesterol are associated with improved survival - while statin usage is not. The impact of statin treatment on the "reverse epidemiology" of cholesterol is unclear. METHODS: 2992 consecutive patients with non-ischemic CHF due to left ventricular systolic dysfunction from the Norwegian CHF Registry and the CHF Registries of the Universities of Hull, UK, and Heidelberg, Germany, were studied...
March 9, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28341776/an-nppb-promoter-polymorphism-associated-with-elevated-n-terminal-pro-b-type-natriuretic-peptide-and-lower-blood-pressure-hypertension-and-mortality
#11
Sara B Seidelmann, Orly Vardeny, Brian Claggett, Bing Yu, Amil M Shah, Christie M Ballantyne, Elizabeth Selvin, Calum A MacRae, Eric Boerwinkle, Scott D Solomon
BACKGROUND: Elevated B-type natriuretic peptide (BNP) levels are associated with heart failure and increased mortality in the general population. We investigated rs198389, a functional variant in the promoter region of the BNP gene (NPPB), in patients from the Atherosclerosis Risk in Communities Study to investigate associations with N-terminal pro-BNP (NT-proBNP) levels and outcomes. METHODS AND RESULTS: A total of 11 361 black and white patients with rs198389 genotyping attended visit 1 (aged 45-64 years; 1987-1989), with follow-up visits occurring every 3 years (visit 2-visit 4, 1990-1999), followed by visit 5 (2011-2013)...
March 24, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28341544/echocardiographic-assessment-of-right-ventricular-function-in-routine-practice-which-parameters-are-useful-to-predict-one-year-outcome-in-advanced-heart-failure-patients-with-dilated-cardiomyopathy
#12
Takayuki Kawata, Masao Daimon, Koichi Kimura, Tomoko Nakao, Seitetsu L Lee, Megumi Hirokawa, Tomoko S Kato, Masafumi Watanabe, Yutaka Yatomi, Issei Komuro
BACKGROUND: Right ventricular (RV) function has recently gained attention as a prognostic predictor of outcome even in patients who have left-sided heart failure. Since several conventional echocardiographic parameters of RV systolic function have been proposed, our aim was to determine if any of these parameters (tricuspid annular plane systolic excursion: TAPSE, tissue Doppler derived systolic tricuspid annular motion velocity: S', fractional area change: FAC) are associated with outcome in advanced heart failure patients with dilated cardiomyopathy (DCM)...
March 21, 2017: Journal of Cardiology
https://www.readbyqxmd.com/read/28341033/stress-echocardiographic-evaluation-for-d-transposition-of-the-great-arteries-after-atrial-redirection-unmasking-early-signs-of-myocardial-dysfunction-and-baffle-stenosis
#13
Merav Dvir-Orgad, Meera Anand, Astrid M De Souza, Mary T Zadorsky, Marla C Kiess, James E Potts, George G S Sandor
BACKGROUND: The authors used semisupine cycle ergometry stress echocardiography to assess cardiac function and unmask baffle stenosis in patients with d-transposition of the great arteries after atrial redirection surgery. METHODS: This was a retrospective review of semisupine cycle ergometry stress echocardiography performed in 53 patients (64% male; mean age, 24.0 years; 90% Mustard procedure) and 56 healthy control subjects. Incremental exercise to volitional fatigue was performed...
January 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28340820/role-of-everolimus-on-cardiac-functions-in-kidney-transplant-recipients
#14
U Cakir, G Alis, T Erturk, A H Karayagiz, U Karabulut, I Berber
BACKGROUND: Kidney transplantation is known to increase the survival of dialysis patients by ameloriating cardiac status, including both systolic and diastolic functions. We aimed to evaluate the role of immunosuppressive drug regimens on cardiac functions of kidney transplant recipients (KTRs). METHODS: We prospectively evaluated 120 KTRs immediately before and 1 year after the kidney transplantation, using tissue Doppler echocardiography. A triple immunosuppressive therapy including tacrolimus, mycophenoloic acid (MPA), and prednisolone was started for all patients...
April 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28340591/altered-mtor-and-beclin-1-mediated-autophagic-activation-during-right-ventricular-remodeling-in-monocrotaline-induced-pulmonary-hypertension
#15
Yan Deng, Weifeng Wu, Shenglan Guo, Yuming Chen, Chang Liu, Xingcui Gao, Bin Wei
BACKGROUND: Right ventricular structure and function is a major predictor of outcomes in pulmonary hypertension (PH), yet the underlying mechanisms remain poorly understood. Growing evidence suggests the importance of autophagy in cardiac remodeling; however, its dynamics in the process of right ventricle(RV) remodeling in PH has not been fully explored. We sought to study the time course of cardiomyocyte autophagy in the RV in PH and determine whether mammalian target of rapamycin (mTOR) and Beclin-1 hypoxia-related pro-autophagic pathways are underlying mechanisms...
March 24, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28339908/obesity-associated-cardiac-pathogenesis-in-broiler-breeder-hens-pathological-adaption-of-cardiac-hypertrophy1-2
#16
C Y Chen, H Y Lin, Y W Chen, Y J Ko, Y J Liu, Y H Chen, R L Walzem, S E Chen
Broiler hens consuming feed to appetite (ad libitum; AL) show increased mortality. Feed restriction (R) typically improves reproductive performance and livability of hens. Rapidly growing broilers can exhibit increased mortality due to cardiac insufficiency but it is unknown whether the increased mortality of non-R broiler hens is also due to cardiac compromise. To assess cardiac growth and physiology in fully mature birds, 45-week-old hens were either continued on R rations or assigned to AL feeding for 7 or 21 days...
March 1, 2017: Poultry Science
https://www.readbyqxmd.com/read/28339702/subclinical-chronic-left-ventricular-systolic-dysfunction-resulting-from-phosphine-poisoning
#17
E Szymczyk, M Wiszniewska, J Walusiak-Skorupa, J D Kasprzak, P Lipiec
We present a case of a 32-year-old male crew member of a cargo ship, accidentally exposed to phosphine, a fumigating substance. He and other crew members developed increasing fatigue and digestive disorders 24 h later; two died from acute pulmonary oedema. The patient was admitted to hospital, where bilateral pneumonia, acute nephritis, hepatopathy, electrolyte imbalance and leucopenia were diagnosed. He was discharged from hospital 3 weeks later. He was examined 4 months later for possible chronic consequences of acute phosphine poisoning, which included echocardiography showing normal heart size and cardiac function...
February 21, 2017: Occupational Medicine
https://www.readbyqxmd.com/read/28339581/rationale-and-design-of-the-budapest-crt-upgrade-study-a-prospective-randomized-multicentre-clinical-trial
#18
Bela Merkely, Annamaria Kosztin, Attila Roka, Laszlo Geller, Endre Zima, Attila Kovacs, Andras Mihaly Boros, Helmut Klein, Jerzy K Wranicz, Gerhard Hindricks, Marcell Clemens, Gabor Z Duray, Arthur J Moss, Ilan Goldenberg, Valentina Kutyifa
Aims: There is lack of conclusive evidence from randomized clinical trials on the efficacy and safety of upgrade to cardiac resynchronization therapy (CRT) in patients with implanted pacemakers (PM) or defibrillators (ICD) with reduced left ventricular ejection fraction (LVEF) and chronic heart failure (HF). The BUDAPEST-CRT Upgrade Study was designed to compare the efficacy and safety of CRT upgrade from conventional PM or ICD therapy in patients with intermittent or permanent right ventricular (RV) septal/apical pacing, reduced LVEF, and symptomatic HF...
October 6, 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28339397/cognitive-status-gray-matter-atrophy-and-lower-orthostatic-blood-pressure-in-older-adults
#19
Celia O'Hare, Rose-Anne Kenny, Howard Aizenstein, Robert Boudreau, Anne Newman, Lenore Launer, Suzanne Satterfield, Kristine Yaffe, Caterina Rosano
BACKGROUND: Associations between orthostatic blood pressure and cognitive status (CS) have been described with conflicting results. OBJECTIVE: We hypothesize that long-term exposure to lower orthostatic blood pressure is related to having worse CS later in life and that atrophy of regions involved in central regulation of autonomic function mediate these associations. METHODS: Three-to-four measures of orthostatic blood pressure were obtained from 1997-2003 in a longitudinal cohort of aging, and average systolic orthostatic blood pressure response (ASOBPR) was computed as % change in systolic blood pressure from sit-to-stand measured at one minute post stand...
March 20, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28338726/cumulative-exposure-to-systolic-blood-pressure-during-young-adulthood-through-midlife-and-the-urine-albumin-to-creatinine-ratio-at-midlife
#20
Holly Kramer, Laura Colangelo, Cora E Lewis, David R Jacobs, Mark Pletcher, Kirstin Bibbins-Domingo, Alex Chang, David Siscovick, Michael Shlipak, Carmen A Peralta, Nisha Bansal, Paul Muntner, Kiang Liu
BACKGROUND: Higher blood pressure during young adulthood may increase cardiovascular and kidney disease risk later in life. This study examined the association of cumulative systolic blood pressure (SBP) exposure during young adulthood through midlife with urine albumin-to-creatinine ratios (ACR) measured during midlife. METHODS: We used data from the Coronary Artery Risk Development in Young Adults (CARDIA) study, a biracial cohort recruited in 4 urban areas during years 1985-1986...
February 21, 2017: American Journal of Hypertension
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