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cardiomyopathy dilated

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https://www.readbyqxmd.com/read/29141071/usefulness-of-total-12-lead-qrs-voltage-as-a-clue-to-diagnosis-of-patients-with-cardiac-sarcoidosis-severe-enough-to-warrant-orthotopic-heart-transplant
#1
William C Roberts, Tiffany M Becker, Shelley A Hall
Importance: Severe heart failure caused by cardiac sarcoidosis is difficult to diagnosis without biopsy. Objective: To assess whether total electrocardiographic 12-lead QRS voltage may be a clue to diagnosis. Design, Setting, Participants: Case-series study with cases collected at Baylor University Medical Center at Dallas, Dallas, Texas, from January 13, 2005, to January 24, 2017. The clinical records of 16 patients with severe heart failure caused by cardiac sarcoidosis were studied...
November 15, 2017: JAMA Cardiology
https://www.readbyqxmd.com/read/29138229/genomic-structural-variations-lead-to-dysregulation-of-important-coding-and-non-coding-rna-species-in-dilated-cardiomyopathy
#2
Jan Haas, Stefan Mester, Alan Lai, Karen S Frese, Farbod Sedaghat-Hamedani, Elham Kayvanpour, Tobias Rausch, Rouven Nietsch, Jes-Niels Boeckel, Avisha Carstensen, Mirko Völkers, Carsten Dietrich, Dietmar Pils, Ali Amr, Daniel B Holzer, Diana Martins Bordalo, Daniel Oehler, Tanja Weis, Derliz Mereles, Sebastian Buss, Eva Riechert, Emil Wirsz, Maximilian Wuerstle, Jan O Korbel, Andreas Keller, Hugo A Katus, Andreas E Posch, Benjamin Meder
The transcriptome needs to be tightly regulated by mechanisms that include transcription factors, enhancers, and repressors as well as non-coding RNAs. Besides this dynamic regulation, a large part of phenotypic variability of eukaryotes is expressed through changes in gene transcription caused by genetic variation. In this study, we evaluate genome-wide structural genomic variants (SVs) and their association with gene expression in the human heart. We detected 3,898 individual SVs affecting all classes of gene transcripts (e...
November 14, 2017: EMBO Molecular Medicine
https://www.readbyqxmd.com/read/29136120/t2-mapping-cardiovascular-magnetic-resonance-identifies-the-presence-of-myocardial-inflammation-in-patients-with-dilated-cardiomyopathy-as-compared-to-endomyocardial-biopsy
#3
M Spieker, E Katsianos, M Gastl, P Behm, P Horn, C Jacoby, B Schnackenburg, P Reinecke, M Kelm, R Westenfeld, F Bönner
Aims: The aim of this study was to determine the value of T2 mapping for the non-invasive assessment of myocardial inflammation in different stages of systolic left ventricular dysfunction in dilated cardiomyopathy (DCM) in comparison with endomyocardial biopsy (EMB). Methods and results: A total of 132 subjects were enrolled between 2013 and 2016 (62 controls and 70 patients with DCM). All patients underwent CMR at 1.5 T and received coronary angiogram and EMB...
November 10, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/29133477/reproducibility-of-left-ventricular-dimension-versus-area-versus-volume-measurements-in-pediatric-patients-with-dilated-cardiomyopathy
#4
Elif Seda Selamet Tierney, Danielle Hollenbeck-Pringle, Caroline K Lee, Karen Altmann, Carolyn Dunbar-Masterson, Fraser Golding, Minmin Lu, Stephen G Miller, Kimberly Molina, Shobha Natarajan, Carolyn L Taylor, Felicia Trachtenberg, Steven D Colan
BACKGROUND: Multiple echocardiographic methods are used to measure left ventricular size and function. Clinical management is based on individual evaluations and longitudinal trends. The Pediatric Heart Network VVV study (Ventricular Volume Variability) in pediatric patients with dilated cardiomyopathy has reported reproducibility of several of these measures, and how disease state and number of beats impact their reproducibility. In this study, we investigated the impact of observer and sonographer variation on reproducibility of dimension, area, and volume methods to determine the best method for both individual and sequential evaluations...
November 2017: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/29131444/native-t1-reference-values-for-nonischemic-cardiomyopathies-and-populations-with-increased-cardiovascular-risk-a-systematic-review-and-meta-analysis
#5
REVIEW
Maaike van den Boomen, Riemer H J A Slart, Enzo V Hulleman, Rudi A J O Dierckx, Birgitta K Velthuis, Pim van der Harst, David E Sosnovik, Ronald J H Borra, Niek H J Prakken
BACKGROUND: Although cardiac MR and T1 mapping are increasingly used to diagnose diffuse fibrosis based cardiac diseases, studies reporting T1 values in healthy and diseased myocardium, particular in nonischemic cardiomyopathies (NICM) and populations with increased cardiovascular risk, seem contradictory. PURPOSE: To determine the range of native myocardial T1 value ranges in patients with NICM and populations with increased cardiovascular risk. STUDY TYPE: Systemic review and meta-analysis...
November 13, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/29131288/mechanisms-of-cardioembolic-stroke-revisited-atrial-cardiopathy
#6
Justyna Mączyńska, Iwona Kurkowska-Jastrzębska, Rafał Dąbrowski
There has been only moderate progress in our understanding of potential relation between atrial arrhythmia and stroke over years. Current approach is still based on a hypothesis that atrial contractile dysfunction due to fibrillation causes blood stasis, which accompanied by other factors acting together as Virchow's triad produces thrombus and embolism to the brain. In this review we would like to discuss a relatively new concept of atrial cardiopathy. It assumes that risk of thromboembolism is increased regardless of atrial rhythm, being largely driven by atrial tissue abnormalities, such as fibrosis, endothelial and myocytes dysfunction and atrial dilatation...
November 13, 2017: Kardiologia Polska
https://www.readbyqxmd.com/read/29129812/influence-of-lgals3-gene-polymorphisms-on-susceptibility-and-prognosis-of-dilated-cardiomyopathy-in-a-northern-han-chinese-population
#7
Yuhui Zhang, Yunhong Wang, Mei Zhai, Tianyi Gan, Xuemei Zhao, Rongcheng Zhang, Tao An, Yan Huang, Qiong Zhou, Jian Zhang
BACKGROUND: Galectin-3 plays an important role in modulating cardiac inflammation and fibrosis. It also takes part in the pathways underlying cardiac remodeling. Therefore, LGALS3 gene, encoding galectin-3 protein, is a promising candidate for the genetic study of dilated cardiomyopathy (DCM). To date, there has been no research evaluating the association between LGALS3 gene polymorphisms and the susceptibility and prognosis of DCM. METHODS AND RESULTS: Genotyping of 4 single nucleotide polymorphisms (SNPs) in the LGALS3 gene, which were reported to be functional in the literature, was performed in 279 unrelated clinically diagnosed DCM patients and 363 apparently healthy controls from Northern Han Chinese population using iPLEX SNP Genotyping analysis on a Sequenom MassARRAY System...
November 9, 2017: Gene
https://www.readbyqxmd.com/read/29128861/atrial-cardiomyopathy-in-an-adult-labrador-retriever-dog
#8
E Bomassi, J Rousselot, S Libermann, I Raymond Letron, S Etchepareborde, C Misbach
A 7-year-old castrated male Labrador retriever was examined for a 10-day history of weakness and syncope. Physical examination revealed bradycardia and a grade III/VI left apical systolic heart murmur. Electrocardiography demonstrated bradycardia, absence of P waves and an atrio-ventricular nodal escape rhythm. Echocardiography revealed marked biatrial enlargement. Thoracic radiographs showed no evidence of pulmonary edema. Routine plasma biochemistry and electrolytes, basal serum cortisol, total thyroxin concentration, and complete blood count were within normal limits...
November 2017: Schweizer Archiv Für Tierheilkunde
https://www.readbyqxmd.com/read/29127129/heart-failure-in-dilated-cardiomyopathy-mimicking-asthma-triggered-by-pneumonia
#9
Kenichi Tetsuhara, Satoshi Tsuji, Katsutoshi Nakano, Mitsuru Kubota
Heart failure is a rare cause of wheezing and may develop into a critical condition in children. Few cases report patients with heart failure, secondary to dilated cardiomyopathy, with high fever. A 23-month-old girl visited the emergency department with high fever, cough, first wheezing episode, chest retraction and tachycardia. The chest X-ray revealed consolidation on the left lower lung field; the cardiothoracic ratio was 60%. She was diagnosed with bronchial asthma triggered by pneumonia, which remained unchanged during four visits...
November 9, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/29126782/feasibility-and-limitations-of-mitral-valve-repair-with-or-without-left-ventricular-reconstruction-in-non-ischemic-dilated-cardiomyopathy
#10
Yasushige Shingu, Tomonori Ooka, Hiroki Katoh, Tsuyoshi Tachibana, Suguru Kubota, Yoshiro Matsui
BACKGROUND: Although non-transplant surgical interventions for non-ischemic dilated cardiomyopathy (NIDCM) are relatively effective, their feasibility and limitations have not been fully elucidated. The aim of this study was to define the feasibility and limitations of mitral valve repair, with or without surgical ventricular reconstruction for patients with NIDCM in terms of postoperative low cardiac output syndrome (LOS). METHODS: Twenty non-transplant candidates (aged 57±13 years) with NIDCM and significant mitral regurgitation had undergone mitral valve repair combined with submitral procedures...
November 7, 2017: Journal of Cardiology
https://www.readbyqxmd.com/read/29124903/relationship-between-the-left-ventricular-size-and-the-amount-of-trabeculations
#11
Bruno Paun, Bart Bijnens, Constantine Butakoff
Contemporary imaging modalities offer non-invasive quantification of myocardial deformation; however, they make gross assumptions about internal structure of the cardiac walls. Our aim is to study the possible impact of the trabeculations on the stroke volume, strain and capacity of differently sized ventricles. The cardiac left ventricle is represented by an ellipsoid and the trabeculations by a tissue occupying a fixed volume. The ventricular contraction is modelled by scaling the ellipsoid whereupon the measurements of longitudinal strain, end-diastolic, end-systolic and stroke volume are derived and compared...
November 9, 2017: International Journal for Numerical Methods in Biomedical Engineering
https://www.readbyqxmd.com/read/29123889/a-case-of-non-cardiogenic-pulmonary-edema-provoked-by-intravenous-acetazolamide
#12
Yuichiro Ono, Makiko Morifusa, Satoru Ikeda, Chika Kunishige, Yoshiki Tohma
Case: A 61-year-old man was diagnosed with severe chest trauma after a car accident and had had difficulty in weaning from a ventilator because of flail chest and dilated cardiomyopathy. On the 17th day in the intensive care unit, he received i.v. acetazolamide to increase urine output. One hour after the injection, he suddenly developed severe hypoxia. Chest radiography revealed a butterfly shadow. He received other diuretics and a vasodilator, which seemed slowly to resolve the respiratory failure...
July 2017: Acute Medicine & Surgery
https://www.readbyqxmd.com/read/29122578/a-carvedilol-responsive-microrna-mir-125b-5p-protects-the-heart-from-acute-myocardial-infarction-by-repressing-pro-apoptotic-bak1-and-klf13-in-cardiomyocytes
#13
Ahmed S Bayoumi, Kyoung-Mi Park, Yongchao Wang, Jian-Peng Teoh, Tatsuya Aonuma, Yaoliang Tang, Huabo Su, Neal L Weintraub, Il-Man Kim
BACKGROUND: Cardiac injury is accompanied by dynamic changes in the expression of microRNAs (miRs), small non-coding RNAs that post-transcriptionally regulate target genes. MiR-125b-5p is downregulated in patients with end-stage dilated and ischemic cardiomyopathy, and has been proposed as a biomarker of heart failure. We previously reported that the β-blocker carvedilol promotes cardioprotection via β-arrestin-biased agonism of β1-adrenergic receptor while stimulating miR-125b-5p processing in the mouse heart...
November 7, 2017: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/29121733/pheochromocytoma-as-a-reversible-cause-of-cardiomyopathy-analysis-and-review-of-the-literature
#14
Rong Zhang, Deepashree Gupta, Stewart G Albert
CONTEXT: Pheochromocytoma and paraganglioma are rare neuroendocrine tumors which overproduce catecholamines and arise from the adrenal gland or extra-adrenal chromaffin cells of the sympathetic and parasympathetic ganglia (1). Excessive catecholamine-induced stimulation of cardiac myocytes leads to damage which manifests in several forms ranging from Takotsubo to dilated cardiomyopathy. Diagnosis of pheochromocytoma-related cardiomyopathies is often delayed due to the atypical presentation associated with many cases...
December 15, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/29120858/prognostic-value-of-fibrosis-related-markers-in-dilated-cardiomyopathy-a-link-between-osteopontin-and-cardiovascular-events
#15
Paweł Rubiś, Sylwia Wiśniowska-Śmiałek, Ewa Dziewięcka, Lucyna Rudnicka-Sosin, Artur Kozanecki, Piotr Podolec
INTRODUCTION: Serum markers of fibrosis provide an insight into extracellular matrix (ECM) fibrosis in heart failure (HF) and dilated cardiomyopathy (DCM). However, their role as predictors of cardiovascular (CV) events in DCM is poorly understood. METHODS: This is an observational, prospective cohort study. 70 DCM patients (48±12.1years, ejection fraction - EF 24.4±7.4) were recruited. Markers of collagen type I and III synthesis - procollagen type I and III carboxy- and amino-terminal peptides (PICP, PIIICP, PINP, PIIINP), fibrosis controlling factors - ostepontin (OPN), transforming growth factor (TGF1-β) and connective tissue growth factor (CTGF), and matrix metalloproteinases (MMP-2, MMP-9) and tissue inhibitor (TIMP-1), were measured in serum...
November 6, 2017: Advances in Medical Sciences
https://www.readbyqxmd.com/read/29118563/cardiac-dysfunction-as-an-early-predictor-of-portal-hypertension-in-chronic-hepatitis-c
#16
Cecilia Marconi, Mattia Bellan, Paola Giarda, Rosalba Minisini, Serena Favretto, Michela Emma Burlone, Lisa Franzosi, Mario Pirisi
Background: Cirrhotic cardiomyopathy is characterized by a set of cardiovascular modifications observed in advanced chronic liver disease. The aim of this study was to investigate cardiovascular alterations in chronic liver disease with different stages of fibrosis and to correlate cardiac involvement with endoscopic complications of portal hypertension. Methods: Seventy patients with chronic hepatitis C-related chronic liver disease and 20 sex- and age-matched controls underwent clinical evaluation, hepatic transient elastography, and echocardiography...
2017: Annals of Gastroenterology: Quarterly Publication of the Hellenic Society of Gastroenterology
https://www.readbyqxmd.com/read/29118300/improvement-of-left-ventricular-ejection-fraction-by-baroreflex-activation-therapy-in-a-young-man-with-dilated-cardiomyopathy
#17
Marcel Halbach, Thorsten Fritz, Navid Madershahian, Roman Pfister, Hannes Reuter
The progression of heart failure with reduced ejection fraction is promoted by sympathovagal imbalance. Baroreflex activation therapy (BAT) by the electrical stimulation of baroreceptors at the carotid sinus significantly improved exercise capacity and NT-proBNP levels in a randomized trial; however, no significant difference in left ventricular ejection fraction (LV-EF) between groups was found. Here, we report the case of a 30-year-old man with a long history of dilated cardiomyopathy and severely reduced LV-EF despite optimal medical therapy, who was treated with BAT since October 2014 and showed a remarkable improvement in both symptoms and LV-EF under this treatment...
November 8, 2017: International Heart Journal
https://www.readbyqxmd.com/read/29118297/phenotype-and-functional-analyses-in-a-transgenic-mouse-model-of-left-ventricular-noncompaction-caused-by-a-dtna-mutation
#18
Qing Cao, Yang Shen, Xin Liu, Xin Yu, Ping Yuan, Rong Wan, Xiuxia Liu, Xiaogang Peng, Wenfeng He, Jielin Pu, Kui Hong
DTNA encoding dystrobrevin-α (α-DB) is a putative causal gene associated with left ventricular noncompaction cardiomyopathy (LVNC). The aim of the study was to investigate the causal role of DTNA in LVNC using a transgenic mouse model.A missense mutation (c.146A > G, p.N49S) of DTNA was identified in a patient with LVNC by Sanger sequencing. Six independent lines of transgenic mice expressing the mutant DTNA under a myosin heavy chain 6 (Myh6) promoter were generated (Myh6:Dtna(N49S)). Phenotypic characteristics of DTNA-p...
November 8, 2017: International Heart Journal
https://www.readbyqxmd.com/read/29115553/endothelial%C3%A2-to%C3%A2-mesenchymal-transition-in-human-idiopathic-dilated-cardiomyopathy
#19
Yeqing Xie, Jianquan Liao, Yong Yu, Qi Guo, Yingzhen Yang, Junbo Ge, Haozhu Chen, Ruizhen Chen
Dilated cardiomyopathy (DCM) is characterized by left ventricular dilation and cardiac fibrosis. Emerging evidence indicated that endothelial‑to‑mesenchymal transition (Endo‑MT) is a crucial event during organ fibrosis. This study was performed to clarify whether Endo‑MT contributed to the progression of cardiac fibrosis in DCM. Cardiac samples from patients with DCM and control were obtained. The presence of endothelial markers, cluster of differentiation (CD)31 and vascular endothelial (VE)‑cadherin, and mesenchymal markers, α smooth muscle actin (SMA) and fibroblast‑specific protein 1 (FSP1) was performed using immunohistochemistry...
November 8, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29115435/human-umbilical-cord-mesenchymal-stem-cells-alleviate-interstitial-fibrosis-and-cardiac-dysfunction-in-a-dilated-cardiomyopathy-rat-model-by-inhibiting-tnf%C3%A2-%C3%AE-and-tgf%C3%A2-%C3%AE-1-erk1-2-signaling-pathways
#20
Changyi Zhang, Guichi Zhou, Yezeng Chen, Sizheng Liu, Fen Chen, Lichun Xie, Wei Wang, Yonggang Zhang, Tianyou Wang, Xiulan Lai, Lian Ma
Dilated cardiomyopathy (DCM) is a disease of the heart characterized by pathological remodeling, including patchy interstitial fibrosis and degeneration of cardiomyocytes. In the present study, the beneficial role of human umbilical cord‑derived mesenchymal stem cells (HuMSCs) derived from Wharton's jelly was evaluated in the myosin‑induced rat model of DCM. Male Lewis rats (aged 8‑weeks) were injected with porcine myosin to induce DCM. Cultured HuMSCs (1x106 cells/rat) were intravenously injected 28 days after myosin injection and the effects on myocardial fibrosis and the underlying signaling pathways were investigated and compared with vehicle‑injected and negative control rats...
October 26, 2017: Molecular Medicine Reports
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