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https://www.readbyqxmd.com/read/27909753/six-minute-walk-test-as-a-predictor-for-outcome-in-children-with-dilated-cardiomyopathy-and-chronic-stable-heart-failure
#1
Susanna L den Boer, Daniël H K Flipse, Marijke H van der Meulen, Ad P C M Backx, Gideon J du Marchie Sarvaas, Arend D J Ten Harkel, Gabriëlle G van Iperen, Lukas A J Rammeloo, Ronald B Tanke, Willem A Helbing, Tim Takken, Michiel Dalinghaus
Cardiopulmonary exercise testing is an important tool to predict prognosis in children and adults with heart failure. A much less sophisticated exercise test is the 6 min walk test, which has been shown an independent predictor for morbidity and mortality in adults with heart failure. Therefore, we hypothesized that the 6 min walk test could be predictive for outcome in children with dilated cardiomyopathy. We prospectively included 49 children with dilated cardiomyopathy ≥6 years who performed a 6 min walk test...
December 1, 2016: Pediatric Cardiology
https://www.readbyqxmd.com/read/27908349/truncating-flnc-mutations-are-associated-with-high-risk-dilated-and-arrhythmogenic-cardiomyopathies
#2
Martín F Ortiz-Genga, Sofía Cuenca, Matteo Dal Ferro, Esther Zorio, Ricardo Salgado-Aranda, Vicente Climent, Laura Padrón-Barthe, Iria Duro-Aguado, Juan Jiménez-Jáimez, Víctor M Hidalgo-Olivares, Enrique García-Campo, Chiara Lanzillo, M Paz Suárez-Mier, Hagith Yonath, Sonia Marcos-Alonso, Juan P Ochoa, José L Santomé, Diego García-Giustiniani, Jorge L Rodríguez-Garrido, Fernando Domínguez, Marco Merlo, Julián Palomino, María L Peña, Juan P Trujillo, Alicia Martín-Vila, Davide Stolfo, Pilar Molina, Enrique Lara-Pezzi, Francisco E Calvo-Iglesias, Eyal Nof, Leonardo Calò, Roberto Barriales-Villa, Juan R Gimeno-Blanes, Michael Arad, Pablo García-Pavía, Lorenzo Monserrat
BACKGROUND: Filamin C (encoded by the FLNC gene) is essential for sarcomere attachment to the plasmatic membrane. FLNC mutations have been associated with myofibrillar myopathies, and cardiac involvement has been reported in some carriers. Accordingly, since 2012, the authors have included FLNC in the genetic screening of patients with inherited cardiomyopathies and sudden death. OBJECTIVES: The aim of this study was to demonstrate the association between truncating mutations in FLNC and the development of high-risk dilated and arrhythmogenic cardiomyopathies...
December 6, 2016: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/27905387/-dilated-cardiomyopathy-as-a-cause-of-ischemic-stroke
#3
S G Zhdanova, S S Petrikov, G R Ramazanov, L T Khamidova, I S Aliev, Z O Sarkisyan
Dilated cardiomyopathy (DCMP) is a disease of the myocardium characterized by the dilatation of heart cavities with the development of systolic dysfunction but without a decrease in the thickness of the myocardium. DCMP is a frequent cause of cardioembolic syndrome, in particular cardioembolic ischemic stroke (CES). A case of a patient with DCMP after CES is presented.
2016: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
https://www.readbyqxmd.com/read/27904993/molecular-mechanisms-of-heart-failure-insights-from-drosophila
#4
Shasha Zhu, Zhe Han, Yan Luo, Yulin Chen, Qun Zeng, Xiushan Wu, Wuzhou Yuan
Heart failure places an enormous burden on health and economic systems worldwide. It is a complex disease that is profoundly influenced by both genetic and environmental factors. Neither the molecular mechanisms underlying heart failure nor effective prevention strategies are fully understood. Fortunately, relevant aspects of human heart failure can be experimentally studied in tractable model animals, including the fruit fly, Drosophila, allowing the in vivo application of powerful and sophisticated molecular genetic and physiological approaches...
December 1, 2016: Heart Failure Reviews
https://www.readbyqxmd.com/read/27901040/follow-up-care-by-a-genetic-counsellor-for-relatives-at-risk-for-cardiomyopathies-is-cost-saving-and-well-appreciated-a-randomised-comparison
#5
Karin Nieuwhof, Erwin Birnie, Maarten P van den Berg, Rudolf A de Boer, Paul L van Haelst, J Peter van Tintelen, Irene M van Langen
Increasing numbers of patient relatives at risk of developing dilated or hypertrophic cardiomyopathy (DCM/HCM) are being identified and followed up by cardiologists according to the ACC/ESC guidelines. However, given limited healthcare resources, good-quality low-cost alternative approaches are needed. Therefore, we have compared conventional follow-up by a cardiologist with that provided at a cardiogenetic clinic (CGC) led by a genetic counsellor. Phenotype-negative first-degree relatives at risk for DCM/HCM were randomly assigned to see either a cardiologist or to attend a CGC...
November 30, 2016: European Journal of Human Genetics: EJHG
https://www.readbyqxmd.com/read/27900866/-the-benefit-of-magnetic-resonance-for-diagnosing-cardiomyopathy-and-myocarditis
#6
Michal Fikrle, Petr Kuchynka, Martin Mašek, Jana Podzimková, Jan Kuchař, Aleš Linhart, Tomáš Paleček
Magnetic resonance is becoming an increasingly used examination in cardiology, since it greatly improves the accuracy of diagnosing of many heart diseases. At present magnetic resonance is the gold standard in assessing the volumes of the heart chambers and the systolic function of both ventricles. The possibility of detecting tissue characteristics to refine the diagnostics of different types of myocardial pathology is of essential importance. The authors summarize in the article the present knowledge about the use of magnetic resonance of the heart in the field of myocardial disease, i...
2016: Vnitr̆ní Lékar̆ství
https://www.readbyqxmd.com/read/27899134/a-modified-park-s-stitch-to-correct-aortic-insufficiency-for-bioprosthetic-valve-at-time-of-left-ventricular-assist-device-implant-a-case-report
#7
Toshinobu Kazui, Nicole Sydow, Mark Friedman, Samuel Kim, Scott Lick, Zain Khalpey
BACKGROUND: Aortic valve insufficiency (AI) at the time of left ventricular assist device (LVAD) insertion needs to be corrected, however there is little known about how to manage bioprosthetic valvular AI. CASE PRESENTATION: A 55-year-old female with dilated cardiomyopathy who previously had a bioprosthetic aortic valve replacement needed a LVAD as a bridge to transplant. Her left ventricular ejection fraction was 10% and had mild to moderate transvalvular AI. She underwent a HeartWare HVAD insertion along with aortic valvular coaptation stitch repair (Park's stitch) to the bioprosthetic valve...
November 30, 2016: Journal of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/27896284/analyses-of-more-than-60-000-exomes-questions-the-role-of-numerous-genes-previously-associated-with-dilated-cardiomyopathy
#8
Nina Nouhravesh, Gustav Ahlberg, Jonas Ghouse, Charlotte Andreasen, Jesper H Svendsen, Stig Haunsø, Henning Bundgaard, Peter E Weeke, Morten S Olesen
BACKGROUND: Hundreds of genetic variants have been described as disease causing in dilated cardiomyopathy (DCM). Some of these associations are now being questioned. We aimed to identify the prevalence of previously DCM associated variants in the Exome Aggregation Consortium (ExAC), in order to identify potentially false-positive DCM variants. METHODS: Variants listed as DCM disease-causing variants in the Human Gene Mutation Database were extracted from ExAC. Pathogenicity predictions for these variants were mined from dbNSFP v 2...
November 2016: Molecular Genetics & Genomic Medicine
https://www.readbyqxmd.com/read/27895589/amino-acid-changes-at-arginine-204-of-troponin-i-result-in-increased-calcium-sensitivity-of-force-development
#9
Susan Nguyen, Rylie Siu, Shannamar Dewey, Ziyou Cui, Aldrin V Gomes
Mutations in human cardiac troponin I (cTnI) have been associated with restrictive, dilated, and hypertrophic cardiomyopathies. The most commonly occurring residue on cTnI associated with familial hypertrophic cardiomyopathy (FHC) is arginine (R), which is also the most common residue at which multiple mutations occur. Two FHC mutations are known to occur at cTnI arginine 204, R204C and R204H, and both are associated with poor clinical prognosis. The R204H mutation has also been associated with restrictive cardiomyopathy (RCM)...
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/27894980/natural-killer-cells-in-inflammatory-heart-disease
#10
REVIEW
SuFey Ong, Noel R Rose, Daniela Cihakova
Despite of a multitude of excellent studies, the regulatory role of natural killer (NK) cells in the pathogenesis of inflammatory cardiac disease is greatly underappreciated. Clinical abnormalities in the numbers and functions of NK cells are observed in myocarditis and inflammatory dilated cardiomyopathy (DCMi) as well as in cardiac transplant rejection Ayach and Ayach (2006), Kuroki et al. (1993), Klarlund and Klarlund (1987), Anderson et al. (1982), Galati and Galati (2014), Zhang and Zhang (2014) [1-6]...
November 25, 2016: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/27894597/unexpected-cardiac-death-during-anaesthesia-of-a-young-rabbit-associated-with-fibro-fatty-replacement-of-the-right-ventricular-myocardium
#11
M Romanucci, S V P Defourny, M Massimini, V Valerii, A Arbuatti, V Giordano, L Bongiovanni, C Perrone, L Della Salda
A 6-month-old female pet rabbit was presented for routine ovariectomy. The pre-anaesthetic evaluation was unremarkable and no anaesthetic complications occurred during the procedure. However, at the end of the surgery, the rabbit suddenly showed acute bradycardia and cardiac death. Necropsy examination revealed marked dilation of the right ventricle, associated with diffuse thinning of the right ventricular free wall. Gross and histopathological findings were suggestive of a congenital dilated cardiomyopathy characterized by fibro-fatty replacement of the right ventricular myocardium...
November 25, 2016: Journal of Comparative Pathology
https://www.readbyqxmd.com/read/27891565/expression-and-biochemical-characteristics-of-two-different-aldosterone-receptors-in-both-healthy-and-dilated-cardiomyopathy-dog-heart-tissue
#12
Alejandro R Reynoso Palomar, Moncerrat Rodriguez Bravo, Abel E Villa Mancera, Carlos J Mucha
Recently, replicates of the aldosterone receptor expression have been done in healthy heart dog tissues through immunohistochemistry, showing an apparent heterogeneous distribution in the four chambers. Recent studies have also identified immediate effects of aldosterone, suggesting aldosterone also produces non-genomic effects caused by an unidentified receptor. In order to study the molecular and quantitative expression characteristics of aldosterone binding receptors in the canine heart, we conducted studies, using Western Blot, in the heart from both healthy animals and animals with dilated cardiomyopathy...
November 28, 2016: Veterinary Research Communications
https://www.readbyqxmd.com/read/27890770/fibrosis-and-fibrotic-gene-expression-in-pediatric-and-adult-patients-with-idiopathic-dilated-cardiomyopathy
#13
Kathleen C Woulfe, Austine K Siomos, Hieu Nguyen, Megan SooHoo, Csaba Galambo, Brian L Stauffer, Carmen Sucharov, Shelley Miyamoto
BACKGROUND: While fibrosis seems to be prognostic for adverse outcomes in adults with idiopathic dilated cardiomyopathy (IDC), little is known about the prevalence and development of fibrosis in pediatric IDC hearts. We hypothesize there is less activation of fibrosis at a molecular level in pediatric IDC hearts than in the failing adult heart. METHODS AND RESULTS: Pediatric hearts were analyzed histologically to determine the prevalence of fibrosis. Left ventricular tissue from adult and pediatric IDC hearts and adult and pediatric non-failing (NF) hearts were subjected to qRT-PCR to study the expression of important mRNAs that affect fibrosis...
November 24, 2016: Journal of Cardiac Failure
https://www.readbyqxmd.com/read/27890513/therapeutic-effect-of-immunoadsorption-and-subsequent-immunoglobulin-substitution-in-patients-with-dilated-cardiomyopathy-results-from-the-observational-prospective-bad-berka-registry
#14
Marc-Alexander Ohlow, Michele Brunelli, Matthias Schreiber, Bernward Lauer
BACKGROUND: Elimination of cardiac autoantibodies, frequently detected in patients with dilated cardiomyopathy (DCM), with immunoadsorption (IA) improves functional capacity and left ventricular (LV) function. This study aimed to prospectively address this issue in a large cohort of unselected patients. METHODS: Consecutive patients undergoing IA followed by IgG substitution were included. Clinical and echocardiographic parameters were assessed at baseline (BL) and 12-month follow-up (FU)...
November 24, 2016: Journal of Cardiology
https://www.readbyqxmd.com/read/27889554/familial-dilated-cardiomyopathy-a-multidisciplinary-entity-from-basic-screening-to-novel-circulating-biomarkers
#15
REVIEW
D de Gonzalo-Calvo, M Quezada, O Campuzano, A Perez-Serra, J Broncano, R Ayala, M Ramos, V Llorente-Cortes, S Blasco-Turrión, F J Morales, P Gonzalez, R Brugada, A Mangas, R Toro
Idiopathic dilated cardiomyopathy has become one of the most prevalent inherited cardiomyopathies over the past decades. Genetic screening of first-degree relatives has revealed that 30-50% of the cases have a familial origin. Similar to other heart diseases, familial dilated cardiomyopathy is characterized by a high genetic heterogeneity that complicates family studies. Cli'nical screening, 12-lead electrocardiogram and transthoracic echocardiogram are recommended for patients and first-degree family members...
November 8, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27889210/relations-between-circulating-micrornas-mir-21-mir-26-mir-29-mir-30-and-mir-133a-extracellular-matrix-fibrosis-and-serum-markers-of-fibrosis-in-dilated-cardiomyopathy
#16
Paweł Rubiś, Justyna Totoń-Żurańska, Sylwia Wiśniowska-Śmiałek, Katarzyna Holcman, Maria Kołton-Wróż, Paweł Wołkow, Ewa Wypasek, Joanna Natorska, Lucyna Rudnicka-Sosin, Agnieszka Pawlak, Artur Kozanecki, Piotr Podolec
No abstract text is available yet for this article.
November 18, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27888761/tissue-thrombin-is-associated-with-the-pathogenesis-of-dilated-cardiomyopathy
#17
Keiichi Ito, Kenichi Hongo, Taro Date, Masahiro Ikegami, Hiroshi Hano, Mamiko Owada, Satoshi Morimoto, Yusuke Kashiwagi, Daisuke Katoh, Takuya Yoshino, Akira Yoshii, Haruka Kimura, Tomohisa Nagoshi, Ichige Kajimura, Yoichiro Kusakari, Toru Akaike, Susumu Minamisawa, Kazuo Ogawa, Kosuke Minai, Takayuki Ogawa, Makoto Kawai, Junji Yajima, Seiichiro Matsuo, Teiichi Yamane, Ikuo Taniguchi, Sachio Morimoto, Michihiro Yoshimura
BACKGROUND: Thrombin is a serine protease known to be the final product of the coagulation cascade. However, thrombin plays other physiological roles in processes such as gastric contractions and vessel wound healing, and a state of coagulability is increased in patients with dilated cardiomyopathy (DCM). In this study, we investigate the role of thrombin in the pathogenesis of DCM. The purpose of this study is to clarify the role of thrombin in the pathogenesis of DCM and investigate the possibility of treatment against DCM by thrombin inhibition...
November 9, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27886618/massive-parallel-sequencing-questions-the-pathogenic-role-of-missense-variants-in-dilated-cardiomyopathy
#18
Martin G Dalin, Pär G Engström, Emil G Ivarsson, Per Unneberg, Sara Light, Maria Schaufelberger, Thomas Gilljam, Bert Andersson, Martin O Bergo
BACKGROUND: Germline genetic variants are an important cause of dilated cardiomyopathy (DCM). However, recent sequencing studies have revealed rare variants in DCM-associated genes also in individuals without known heart disease. In this study, we investigate variant prevalence and genotype-phenotype correlations in Swedish DCM patients, and compare their genetic variants to those detected in reference cohorts. METHODS AND RESULTS: We sequenced the coding regions of 41 DCM-associated genes in 176 unrelated patients with idiopathic DCM and found 102 protein-altering variants with an allele frequency of <0...
November 9, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27884253/the-quest-for-new-approaches-in%C3%A2-myocarditis-and-inflammatory%C3%A2-cardiomyopathy
#19
REVIEW
Stephane Heymans, Urs Eriksson, Jukka Lehtonen, Leslie T Cooper
Myocarditis is a diverse group of heart-specific immune processes classified by clinical and histopathological manifestations. Up to 40% of dilated cardiomyopathy is associated with inflammation or viral infection. Recent experimental studies revealed complex regulatory roles for several microribonucleic acids and T-cell and macrophage subtypes. Although the prevalence of myocarditis remained stable between 1990 and 2013 at about 22 per 100,000 people, overall mortality from cardiomyopathy and myocarditis has decreased since 2005...
November 29, 2016: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/27883351/-rivaroxaban-resistant-right-ventricular-thrombus-successfully-treated-with-vitamin-k-antagonist-in-a-patient-with-dilated-cardiomyopathy
#20
Waldemar Elikowski, Małgorzata Małek-Elikowska, Marek Słomczyński, Teresa Ganowicz-Kaatz, Andrzej Bolewski, Paweł Skrzywanek
: Rivaroxaban, a selective inhibitor of active factor X belongs to the group of direct-acting oral anticoagulants (DOAC), more and more often replacing vitamin K antagonists (VKA) in venous thromboembolic disease and nonvalvular atrial fibrillation. Attempts are also being made to use DOAC to treat locally formed intracardiac thrombi, mainly in the left atrium and its appendage, in atrial fibrillation and in heart failure. Rarely diagnosed local right ventricular thrombus (RVT) may be a complication of dilated cardiomyopathy (DCM)...
November 25, 2016: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
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