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dilated cardiomyopathy,cardiomyopathy

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https://www.readbyqxmd.com/read/29684120/atrial-fibrillation-in-patients-with-inherited-cardiomyopathies
#1
Cynthia Yeung, Andres Enriquez, Laiden Suarez-Fuster, Adrian Baranchuk
Atrial fibrillation (AF) often complicates the course of inherited cardiomyopathies and, in some cases, may be the presenting feature. Each inherited cardiomyopathy has its own peculiar pathogenetic characteristics that can contribute to the development and maintenance of AF. Atrial fibrillation may occur as a consequence of disease-specific defects, non-specific cardiac chamber changes secondary to the primary illness, or a combination thereof. The presence of AF can denote a turning point in the progression of the disease, promoting clinical deterioration and increasing morbidity and mortality...
April 19, 2018: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29682528/the-relationship-between-serum-zinc-level-and-heart-failure-a-meta-analysis
#2
REVIEW
Xuefang Yu, Lei Huang, Jinyan Zhao, Zhuoqun Wang, Wei Yao, Xianming Wu, Jingjing Huang, Bo Bian
Zinc is essential for the maintenance of normal cellular structure and functions. Zinc dyshomeostasis can lead to many diseases, such as cardiovascular disease. However, there are conflicting reports on the relationship between serum zinc levels and heart failure (HF). The purpose of the present study is to explore the relationship between serum zinc levels and HF by using a meta-analysis approach. PubMed, Web of Science, and OVID databases were searched for reports on the association between serum zinc levels and HF until June 2016...
2018: BioMed Research International
https://www.readbyqxmd.com/read/29681957/mechanical-circulatory-support-is-effective-to-treat-pulmonary-hypertension-in-heart-transplant-candidates-disqualified-due-to-unacceptable-pulmonary-vascular-resistance
#3
Michał Zakliczyński, Jerzy Pacholewicz, Izabela Copik, Marcin Maruszewski, Tomasz Hrapkowicz, Roman Przybylski, Marian Zembala
Introduction: High pulmonary vascular resistance (PVR) in orthotopic heart transplantation (OHT) candidates is a risk factor of right ventricle failure after the procedure. However, the increase of PVR may be a consequence of the life-threatening deterioration of the left ventricle function. The use of mechanical circulatory support (MCS) seems to be the best solution, but it is reimbursed only in active OHT candidates. Aim: We performed a retrospective analysis of MCS effectiveness in maintaining PVR at values accepted for OHT...
March 2018: Kardiochirurgia i Torakochirurgia Polska, Polish Journal of Cardio-Thoracic Surgery
https://www.readbyqxmd.com/read/29681243/association-between-myocardial-extracellular-volume-and-strain-analysis-through-cardiovascular-magnetic-resonance-with-histological-myocardial-fibrosis-in-patients-awaiting-heart-transplantation
#4
Yue Cui, Yukun Cao, Jing Song, Nianguo Dong, Xiangchuang Kong, Jing Wang, Yating Yuan, Xiaolei Zhu, Xu Yan, Andreas Greiser, Heshui Shi, Ping Han
BACKGROUND: Cardiovascular magnetic resonance (CMR)-derived extracellular volume (ECV) and tissue tracking strain analyses are proposed as non-invasive methods for quantifying myocardial fibrosis and deformation. This study sought (1) to histologically validate myocardial ECV against the collagen volume fraction (CVF) measured from tissue samples of patients undergoing heart transplantation and (2) to detect the correlations between myocardial systolic strain and the myocardial ECV and histological CVF in patients undergoing heart transplantation...
April 23, 2018: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/29680382/phenotypic-description-of-cardiac-findings-in-a-population-of-dogue-de-bordeaux-with-an-emphasis-on-atrial-fibrillation
#5
G McAulay, K Borgeat, J Sargent, P Mõtsküla, J Neves, J Dukes-McEwan, V Luis Fuentes
The aim of this study was to describe the clinical phenotype of Dogue de Bordeaux (DdB) referred for cardiac investigation, with particular reference to the prevalence of atrial fibrillation and associated features. Review of canine medical records of two United Kingdom veterinary referral hospitals identified 64 DdB with available echocardiographic and electrocardiographic (ECG)/Holter data. Atrial fibrillation was documented in 25 (39%) dogs and supraventricular tachycardia was recorded in five (7.8%) dogs...
April 2018: Veterinary Journal
https://www.readbyqxmd.com/read/29680351/the-prognostic-value-of-late-gadolinium-enhanced-cardiac-magnetic-resonance-imaging-in-nonischemic-dilated-cardiomyopathy-a-review-and-meta-analysis
#6
Marthe A J Becker, Jan H Cornel, Peter M van de Ven, Albert C van Rossum, Cornelis P Allaart, Tjeerd Germans
OBJECTIVES: This review and meta-analysis reviews the prognostic value of cardiac magnetic resonance (CMR) in nonischemic dilated cardiomyopathy (DCM). BACKGROUND: Late gadolinium-enhanced (LGE) CMR is a noninvasive method to determine the underlying cause of DCM and previous studies reported the prognostic value of the presence of LGE to identify patients at risk of major adverse cardiovascular events. METHODS: PubMed was searched for studies describing the prognostic implication of LGE in patients with DCM for the specified endpoints cardiovascular mortality, major ventricular arrhythmic events including appropriate implantable cardioverter-defibrillator therapy, rehospitalization for heart failure, and left ventricular reverse remodeling...
April 13, 2018: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/29678335/arrhythmic-risk-stratification-in-patients-with-idiopathic-dilated-cardiomyopathy
#7
Davide Stolfo, Nicole Ceschia, Massimo Zecchin, Antonio De Luca, Marco Gobbo, Giulia Barbati, Marta Gigli, Marco Masè, Bruno Pinamonti, Alberto Pivetta, Marco Merlo, Gianfranco Sinagra
Arrhythmic risk stratification in idiopathic dilated cardiomyopathy (IDC) remains a major concern. As the ventricles remodel in time, risk factors for arrhythmic death may change. A cohort of 710 patients with idiopathic dilated cardiomyopathy, without previous ventricular arrhythmias, was retrospectively studied to understand how risks vary in time. The primary end point was a composite of sudden cardiac death, ventricular fibrillation, sustained ventricular tachycardia, and appropriate implantable cardioverter-defibrillator interventions...
March 14, 2018: American Journal of Cardiology
https://www.readbyqxmd.com/read/29671045/correction-to-outcomes-of-plasma-exchange-for-severe-dilated-cardiomyopathy-in-children
#8
Keiichi Koizumi, Minako Hoshiai, Takeshi Moriguchi, Takako Toda, Nobuyuki Katsumata, Hiroaki Kise, Yohei Hasebe, Yousuke Kouno, Junko Goto, Norikazu Harii, Kenichi Matsuda, Shigeaki Kaga, Shoji Suzuki, Kanji Sugita
In original publication of the article, some of the co-author's names were not included. The correct author group is published in this article.
April 18, 2018: Heart and Vessels
https://www.readbyqxmd.com/read/29668927/elevated-dual-specificity-protein-phosphatase-4-in-cardiomyopathy-caused-by-lamin-a-c-gene-mutation-is-primarily-erk1-2-dependent-and-its-depletion-improves-cardiac-function-and-survival
#9
Jason C Choi, Wei Wu, Elizabeth Phillips, Robin Plevin, Fusako Sera, Shunichi Homma, Howard J Worman
Mutations in the lamin A/C gene (LMNA) encoding the nuclear intermediate filament proteins lamins A and C cause a group of tissue-selective diseases, the most common of which is dilated cardiomyopathy (herein referred to as LMNA cardiomyopathy) with variable skeletal muscle involvement. We previously showed that cardiomyocyte-specific overexpression of dual specificity protein phosphatase 4 (DUSP4) is involved in the pathogenesis of LMNA cardiomyopathy. However, how mutations in LMNA activate Dusp4 expression and whether it is necessary for the development of LMNA cardiomyopathy are currently unknown...
April 16, 2018: Human Molecular Genetics
https://www.readbyqxmd.com/read/29668926/right-atrial-and-ventricular-echocardiographic-strain-analysis-predicts-requirement-for-right-ventricular-support-after-left-ventricular-assist-device-implantation
#10
Dafni Charisopoulou, Nicholas R Banner, Camil Demetrescu, Andre R Simon, Shelley Rahman Haley
Aims: The need for right ventricular assist device (RVAD) support after left ventricular assist device (LVAD) therapy is associated with increased morbidity and mortality. We used 2D echocardiographic strain analysis to assess right atrial (RA) and right ventricular (RV) mechanics and predict the need for RV mechanical support after LVAD implantation. Methods and results: Seventy advanced chronic heart failure (ACHF) patients [59 male, age 47 ± 12 years, 79% dilated cardiomyopathy, left ventricular ejection fraction 23 ± 10%] received continuous-flow LVAD as a bridge to transplantation over an 18 month period...
April 13, 2018: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/29666183/dilated-cardiomyopathy-myosin-mutants-have-reduced-force-generating-capacity
#11
Zoltan Ujfalusi, Carlos D Vera, Srbolujub M Mijailovich, Marina Svicevic, Elizabeth Choe Yu, Masataka Kawana, Kathleen Ruppel, James A Spudich, Michael A Geeves, Leslie A Leinwand
Dilated cardiomyopathy (DCM) and hypertrophic cardiomyopathy (HCM) can cause arrhythmias, heart failure, and cardiac death. Here, we functionally characterized the motor domains of five DCM-causing mutations in human β-cardiac myosin. Kinetic analyses of the individual events in the ATPase cycle revealed that each mutation alters different steps in this cycle. For example, different mutations gave enhanced or reduced rate constants of ATP binding, ATP hydrolysis, or ADP release or exhibited altered ATP, ADP, or actin affinity...
April 17, 2018: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29665072/an-update-on-canine-cardiomyopathies-is-it-all-in-the-genes
#12
REVIEW
E Dutton, J López-Alvarez
Dilated cardiomyopathy is the second most common cardiac disease in dogs and causes considerable morbidity and mortality. Primary dilated cardiomyopathy is suspected to be familial, and genetic loci have been associated with the disease in a number of breeds. Because it is an adult-onset disease, usually with late onset, testing breeding dogs and bitches before breeding for a genetic mutation that could lead to dilated cardiomyopathy would be helpful to prevent disease. There is growing evidence that the genetic basis may be multigenic rather than monogenic in the majority of studied breeds...
April 17, 2018: Journal of Small Animal Practice
https://www.readbyqxmd.com/read/29664404/outcomes-in-patients-with-hypertrophic-cardiomyopathy-awaiting-heart-transplantation
#13
Julio Zuñiga Cisneros, Josef Stehlik, Craig H Selzman, Stavros G Drakos, Stephen H McKellar, Omar Wever-Pinzon
BACKGROUND: Current organ allocation policy and the rapid growth of mechanical support favor heart transplant (HT) candidates on left ventricular assist devices. HT candidates with hypertrophic cardiomyopathy (HCM) are usually not left ventricular assist device candidates and may have a disadvantage compared with dilated forms of cardiomyopathy. METHODS AND RESULTS: Adult HT candidates registered in the Scientific Registry of Transplant Recipients database between 1999 and 2016 were included...
March 2018: Circulation. Heart Failure
https://www.readbyqxmd.com/read/29663442/complexity-of-scar-and-ventricular-arrhythmias-in-dilated-cardiomyopathy-of-any-etiology-long-term-data-from-the-scarfear-cardiovascular-magnetic-resonance-predictors-of-appropriate-implantable-cardioverter-defibrillator-therapy-delivery-registry
#14
Stefano Pedretti, Sara Vargiu, Matteo Baroni, Santo Dellegrottaglie, Barbara Lanzarin, Alberto Roghi, Angela Milazzo, Giuseppina Quattrocchi, Maurizio Lunati, Patrizia Pedrotti
BACKGROUND: Late gadolinium enhancement (LGE) assessed with cardiovascular magnetic resonance (CMR) correlates with ventricular arrhythmias and survival in patients with structural heart disease. Whether some LGE characteristics may specifically improve prediction of arrhythmic outcomes is unknown. HYPOTHESIS: We sought to evaluate scar characteristics assessed with CMR to predict implantable cardioverter-defibrillator (ICD) interventions in dilated cardiomyopathy of different etiology...
April 17, 2018: Clinical Cardiology
https://www.readbyqxmd.com/read/29663123/creation-of-a-restrictive-atrial-communication-in-heart-failure-with-preserved-and-mid-range-ejection-fraction-effective-palliation-of-left-atrial-hypertension-and-pulmonary-congestion
#15
Anna Bauer, Markus Khalil, Monika Lüdemann, Jürgen Bauer, Anoosh Esmaeili, Roberta De-Rosa, Norbert F Voelkel, Hakan Akintuerk, Dietmar Schranz
BACKGROUND: Left atrial decompression is considered in patients with symptomatic heart failure with preserved ejection fraction (HFpEF). We aimed to evaluate the feasibility and efficacy of transcatheter generation of a restrictive atrial septum communication to manage HFpEF from infancy to adulthood with cardiomyopathy and congenital heart defect. METHODS AND RESULTS: From June 2009 to December 2016, 24 patients (50% with an age less than 16 years) with HFpEF were palliated; NYHA-/Ross class IV (n = 10); median systemic ventricular ejection fraction 64 (range 35-78) %...
April 16, 2018: Clinical Research in Cardiology: Official Journal of the German Cardiac Society
https://www.readbyqxmd.com/read/29661756/prevention-of-rickets-and-osteomalacia-in-the-uk-political-action-overdue
#16
REVIEW
Suma Uday, Wolfgang Högler
The consequences of vitamin D and dietary calcium deficiency have become a huge public health concern in the UK. The burden of disease from these deficiencies includes rickets, and hypocalcaemic seizures, dilated cardiomyopathy and mostly occult myopathy and osteomalacia. The increasing burden of the disease is intrinsically linked to ethnicity and the population demographic changes in the UK. Three facts have led to the resurfacing of the English disease: (1) the UK has no ultraviolet sunlight for at least 6 months of the year, (2) dark skin produces far less vitamin D than white skin per unit ultraviolet light exposure, and (3) non-European Union immigration over the last century...
April 16, 2018: Archives of Disease in Childhood
https://www.readbyqxmd.com/read/29660794/diagnostic-utility-of-cardiac-troponin-i-in-cats-with-hypertrophic-cardiomyopathy
#17
Yasutomo Hori, Masayuki Iguchi, Yasuhiro Heishima, Yohei Yamashita, Kensuke Nakamura, Atsushi Hirakawa, Akihito Kitade, Toshiki Ibaragi, Michio Katagi, Tamotsu Sawada, Masashi Yuki, Nobuyuki Kanno, Haruki Inaba, Noriko Isayama, Hideyuki Onodera, Naoki Iwasa, Mikio Kino, Mikihiro Narukawa, Syuhei Uchida
BACKGROUND: Cardiac troponin I (cTnI) is useful for assessing hypertrophic cardiomyopathy (HCM) in cats. OBJECTIVE: To measure plasma cTnI concentrations in healthy cats and evaluate the clinical utility of cTnI in determining the severity of HCM. ANIMALS: Clinically healthy cats (n = 88) and cats with HCM (n = 93). METHODS: Multicenter prospective study. Cats with HCM, including hypertrophic obstructive cardiomyopathy at various stages, were diagnosed using echocardiography...
April 16, 2018: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/29660764/prognostic-utility-of-meld-xi-in-adult-congenital-heart-disease-patients-undergoing-cardiac-transplantation
#18
Evan D Adams, Nicholas J Jackson, Tim Young, Eugene C DePasquale, Leigh C Reardon
BACKGROUND: MELD-XI (Model for End-Stage Liver Disease eXcluding INR) at cardiac transplant has demonstrated prognostic survival utility, but has not been specifically validated in adult congenital heart disease (ACHD) in a registry study. METHODS: Adults undergoing first time orthotopic heart transplant from 2005-2015 in the UNOS (United Network for Organ Sharing) registry were examined in parallel: ACHD (n=543), ischemic dilated cardiomyopathy (IDCM, n=6,954) and valvular heart disease (VHD, n=355)...
April 16, 2018: Clinical Transplantation
https://www.readbyqxmd.com/read/29657705/laparoscopic-transhiatal-resection-of-a-large-mid-esophageal-diverticulum-a-case-report
#19
Tomislav Tokic, Iva Kirac, Davor Hrabar, Branko Troskot, Miroslav Bekavac-Beslin
This is a description of transhiatal laparoscopic approach for mid-esophageal diverticulum. Traditionally mid-esophageal diverticula are approached by thoracotomy or thoracoscopy, with the laparoscopic technique being reserved for epiphrenic diverticula. A 78-year-old Caucasian female with a secondary dilatative ischemic cardiomyopathy presented with dysphagia, tenderness in the epigastrium and a considerable weight loss. A large mid-esophageal diverticulum was found on barium swallow and confirmed by CT scan...
April 2018: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/29656687/longitudinal-evaluation-of-ventricular-ejection-fraction-and-nt-probnp-across-heart-failure-subgroups
#20
Andreas Martinsson, Petter Oest, Maj-Britt Wiborg, Öyvind Reitan, J Gustav Smith
OBJECTIVES: Left ventricular ejection fraction (EF) and N-terminal pro-B-type natriuretic peptide (NT-proBNP) are important surrogate markers of cardiac function and wall stress. Randomized trials of heart failure (HF) have shown improvements in survival in patients with reduced EF (<40%, HFrEF) but not with preserved EF (≥50%, HFpEF) or mid-range EF (40-49%, HFmrEF). Limited information is available on the trajectory of EF in contemporary heart failure management programs (HFMPs)...
April 14, 2018: Scandinavian Cardiovascular Journal: SCJ
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