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https://www.readbyqxmd.com/read/28874384/heart-failure-is-common-and-under-recognized-in-patients-with-arrhythmogenic-right-ventricular-cardiomyopathy-dysplasia
#1
Nisha A Gilotra, Aditya Bhonsale, Cynthia A James, Anneline S J Te Riele, Brittney Murray, Crystal Tichnell, Abhishek Sawant, Chin Siang Ong, Daniel P Judge, Stuart D Russell, Hugh Calkins, Ryan J Tedford
BACKGROUND: Heart failure (HF) prevalence in arrhythmogenic right ventricular cardiomyopathy/dysplasia (ARVC/D) varies depending on study cohort and is not well characterized. This study sought to determine prevalence and predictors of HF in ARVC/D. METHODS AND RESULTS: Clinical HF, defined as at least 1 HF sign or symptom, was retrospectively adjudicated for 289 patients meeting ARVC/D Task Force Criteria. HF was present in 142 patients (49%): 113 had isolated RV involvement and 29 had evidence of LV dysfunction...
September 2017: Circulation. Heart Failure
https://www.readbyqxmd.com/read/28865556/normative-reference-values-of-right-heart-in-competitive-athletes-a-systematic-review-and-meta-analysis
#2
REVIEW
Flavio D'Ascenzi, Antonio Pelliccia, Marco Solari, Pietro Piu, Ferdinando Loiacono, Francesca Anselmi, Stefano Caselli, Marta Focardi, Marco Bonifazi, Sergio Mondillo
Training-induced right ventricular (RV) enlargement is frequent in athletes. Unfortunately, RV dilatation is also a common phenotypic expression and one of the diagnostic criteria of arrhythmogenic RV cardiomyopathy (ARVC). The current echocardiographic reference values derived from the general population can overestimate the presence of RV dilatation in athletes. We performed a meta-analysis of the literature to derive the proper reference values for assessing RV enlargement in competitive athletes. We conducted systematic review of English-language studies in the MEDLINE, Scopus, and Cochrane databases investigating RV size and function by echocardiography and by cardiac magnetic resonance (CMR) in competitive athletes...
September 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28855434/isolated-late-activation-detected-by-magnetocardiography-predicts-future-lethal-ventricular-arrhythmic-events-in-patients-with-arrhythmogenic-right-ventricular-cardiomyopathy
#3
Yoshitaka Kimura, Hiroshi Takaki, Yuko Y Inoue, Yasutaka Oguchi, Tomomi Nagayama, Takahiro Nakashima, Shoji Kawakami, Satoshi Nagase, Takashi Noda, Takeshi Aiba, Wataru Shimizu, Shiro Kamakura, Masaru Sugimachi, Satoshi Yasuda, Hiroaki Shimokawa, Kengo Kusano
BACKGROUND: Risk stratification of ventricular arrhythmias is vital to the optimal management in patients with arrhythmogenic right ventricular cardiomyopathy (ARVC). We hypothesized that 64-channel magnetocardiography (MCG) would be useful to detect isolated late activation (ILA) by overcoming the limitations of conventional noninvasive predictors of ventricular tachyarrhythmias, including epsilon waves, late potential (LP), and right ventricular ejection fraction (RVEF), in ARVC patients...
August 30, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28843747/arrhythmogenic-right-ventricular-cardiomyopathy-arvc-in-a-young-female-athlete-at-36-weeks-gestation-a-case-report
#4
Hae Yoon Grace Choung, Monika Vyas, Daniel Jacoby, Brian West
A 26year old east African professional athlete presented to the obstetric clinic for a routine visit at 36 weeks gestation. She had a history of Right Ventricular Outflow Tract - Ventricular Tachycardia (RVOT-VT) with an episode of cardiac arrest in the past, and had been treated with ablation 4 years earlier. Her current visit was uneventful, her pregnancy progressing normally. Following the visit she went to a local restaurant where she suffered a cardiac arrest that was unresponsive to therapy. Chest compressions were continued from the time of her collapse until an emergency caesarian section was performed, delivering a healthy female infant...
July 25, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28818065/case-reports-of-two-pedigrees-with-recessive-arrhythmogenic-right-ventricular-cardiomyopathy-associated-with-homozygous-thr335ala-variant-in-dsg2
#5
Sami Qadri, Olli Anttonen, Juho Viikilä, Eija H Seppälä, Samuel Myllykangas, Tero-Pekka Alastalo, Miia Holmström, Tiina Heliö, Juha W Koskenvuo
BACKGROUND: Arrhythmogenic right ventricular cardiomyopathy (ARVC) is an inherited cardiac disease, involving changes in ventricular myocardial tissue and leading to fatal arrhythmias. Mutations in desmosomal genes are thought to be the main cause of ARVC. However, the exact molecular genetic etiology of the disease still remains largely inconclusive, and this along with large variabilities in clinical manifestations complicate clinical diagnostics. CASE PRESENTATION: We report two families (n = 20) in which a desmoglein-2 (DSG2) missense variant c...
August 17, 2017: BMC Medical Genetics
https://www.readbyqxmd.com/read/28804588/first-reported-case-of-arrhythmogenic-right-ventricular-cardiomyopathy-in-oman
#6
Hatim Al Lawati, Humoud Al Dhuhli
Arrhythmogenic right ventricular cardiomyopathy (ARVC) is a rare genetic disorder characterized by fatty degeneration of the right ventricular myocardium with variable involvement of the left ventricle. The condition is associated with exercise-mediated ventricular tachycardia and is one of the recognized causes of sudden cardiac death in the young and in athletes. Here, we report the first confirmed case of ARVC in Oman and present its electrocardiographic, echocardiographic features, and radiological findings on gated, contrast-enhanced cardiac computed tomography...
July 2017: Oman Medical Journal
https://www.readbyqxmd.com/read/28772045/translational-registry-for-cardiomyopathies-torch-rationale-and-first-results
#7
Claudia Seyler, Benjamin Meder, Tanja Weis, Thea Schwaneberg, Kerstin Weitmann, Wolfgang Hoffmann, Hugo A Katus, Andreas Dösch
AIMS: Non-ischemic cardiomyopathies (CMPs) comprise heart muscle disorders of different causes with high variability in disease phenotypes and clinical progression. The lack of national structures for the efficient recruitment, clinical and molecular classification, and follow-up of patients with non-ischemic CMPs limit the thorough analysis of disease mechanisms and the evaluation of novel diagnostic and therapeutic strategies. This paper describes a national, prospective, multicenter registry for patients with non-ischemic CMPs...
August 2017: ESC Heart Failure
https://www.readbyqxmd.com/read/28771538/a-novel-noninvasive-surface-ecg-analysis-using-interlead-qrs-dispersion-in-arrhythmogenic-right-ventricular-cardiomyopathy
#8
Wan-Hsin Hsieh, Chin-Yu Lin, Abigail Louise D Te, Men-Tzung Lo, Cheng-I Wu, Fa-Po Chung, Yi-Chung Chang, Shih-Lin Chang, Chen Lin, Li-Wei Lo, Yu-Feng Hu, Jo-Nan Liao, Yun-Yu Chen, Shih-Jie Jhuo, Sunu Budhi Raharjo, Yenn-Jiang Lin, Shih-Ann Chen
BACKGROUND: This study investigated the feasibility of using the precordial surface ECG lead interlead QRS dispersion (IQRSD) in the identification of abnormal ventricular substrate in arrhythmogenic right ventricular cardiomyopathy (ARVC). METHODS: Seventy-one consecutive patients were enrolled and reclassified into 4 groups: definite ARVC with epicardial ablation (Group 1), ARVC with ventricular tachycardia (VT, Group 2), idiopathic right ventricular outflow tract VT without ARVC (Group 3), and controls without VT (Group 4)...
2017: PloS One
https://www.readbyqxmd.com/read/28767663/contribution-of-exome-sequencing-for-genetic-diagnostic-in-arrhythmogenic-right-ventricular-cardiomyopathy-dysplasia
#9
Joel Fedida, Veronique Fressart, Philippe Charron, Elodie Surget, Tiphaine Hery, Pascale Richard, Erwan Donal, Boris Keren, Guillaume Duthoit, Françoise Hidden-Lucet, Eric Villard, Estelle Gandjbakhch
BACKGROUND: Arrhythmogenic Right Ventricular Cardiomyopathy/Dysplasia (ARVC/D) is an inherited cardiomyopathy mainly caused by heterozygous desmosomal gene mutations, the major gene being PKP2. The genetic cause remains unknown in ~50% of probands with routine desmosomal gene screening. The aim of this study was to assess the diagnostic accuracy of whole exome sequencing (WES) in ARVC/D with negative genetic testing. METHODS: WES was performed in 22 patients, all without a mutation identified in desmosomal genes...
2017: PloS One
https://www.readbyqxmd.com/read/28765973/differential-expression-of-b-type-natriuretic-peptide-between-left-and-right-ventricles-with-particular-regard-to-sudden-cardiac-death
#10
Zhi-Peng Cao, Jia-Jia Xue, Yuan Zhang, Mei-Hui Tian, Ying Xiao, Yu-Qing Jia, Bao-Li Zhu
The aim of the present study was to investigate the differential expression of B‑type natriuretic peptide (BNP) between the left and right ventricle (RV) in sudden cardiac death (SCD). A total of 26 forensic autopsy cases of sudden death (survival time <30 min, postmortem interval <48 h or frozen within 6 h following death) in the present institute were examined. The cases consisted of acute ischemic heart disease (AIHD, n=15) with/without apparent myocardial necrosis as a sign of infarction (acute myocardial infarction, n=6; ischemic heart disease, IHD, n=9), and arrhythmogenic right ventricular cardiomyopathy (ARVC/D, n=5), in addition to traffic accidents and high falls without any pre existing heart disease as control (C, total n=6)...
October 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28750076/targeted-next-generation-sequencing-detects-novel-gene-phenotype-associations-and-expands-the-mutational-spectrum-in-cardiomyopathies
#11
Cinzia Forleo, Anna Maria D'Erchia, Sandro Sorrentino, Caterina Manzari, Matteo Chiara, Massimo Iacoviello, Andrea Igoren Guaricci, Delia De Santis, Rita Leonarda Musci, Antonino La Spada, Vito Marangelli, Graziano Pesole, Stefano Favale
Cardiomyopathies are a heterogeneous group of primary diseases of the myocardium, including hypertrophic cardiomyopathy (HCM), dilated cardiomyopathy (DCM), and arrhythmogenic right ventricular cardiomyopathy (ARVC), with higher morbidity and mortality. These diseases are genetically diverse and associated with rare mutations in a large number of genes, many of which overlap among the phenotypes. To better investigate the genetic overlap between these three phenotypes and to identify new genotype-phenotype correlations, we designed a custom gene panel consisting of 115 genes known to be associated with cardiomyopathic phenotypes and channelopathies...
2017: PloS One
https://www.readbyqxmd.com/read/28705875/electrical-and-structural-substrate-of-arrhythmogenic-right-ventricular-cardiomyopathy-determined-using-noninvasive-electrocardiographic-imaging-and-late-gadolinium-magnetic-resonance-imaging
#12
Christopher M Andrews, Neil T Srinivasan, Stefania Rosmini, Heerajnarain Bulluck, Michele Orini, Sharon Jenkins, Antonis Pantazis, William J McKenna, James C Moon, Pier D Lambiase, Yoram Rudy
BACKGROUND: Arrhythmogenic right ventricular cardiomyopathy (ARVC) is a significant cause of sudden cardiac death in the young. Improved noninvasive assessment of ARVC and better understanding of the disease substrate are important for improving patient outcomes. METHODS AND RESULTS: We studied 20 genotyped ARVC patients with a broad spectrum of disease using electrocardiographic imaging (a method for noninvasive cardiac electrophysiology mapping) and advanced late gadolinium enhancement cardiac magnetic resonance scar imaging...
July 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/28688053/animal-models-of-arrhythmogenic-right-ventricular-cardiomyopathy-what-have-we-learned-and-where-do-we-go-insight-for-therapeutics
#13
REVIEW
Laura Padrón-Barthe, Fernando Domínguez, Pablo Garcia-Pavia, Enrique Lara-Pezzi
Arrhythmogenic right ventricular cardiomyopathy (ARVC) is a rare genetically-determined cardiac heart muscle disorder characterized by fibro-fatty replacement of the myocardium that results in heart failure and sudden cardiac death (SCD), predominantly in young males. The disease is often caused by mutations in genes encoding proteins of the desmosomal complex, with a significant minority caused by mutations in non-desmosomal proteins. Existing treatment options are based on SCD prevention with the implantable cardioverter defibrillator, antiarrhythmic drugs, and anti-heart failure medication...
September 2017: Basic Research in Cardiology
https://www.readbyqxmd.com/read/28665611/comprehensive-myocardial-proteogenomics-profiling-reveals-c-ebp%C3%AE-as-the-key-factor-in-the-lipid-storage-of-arvc
#14
Liang Chen, Fan Yang, Xiao Chen, Man Rao, Ning-Ning Zhang, Kai Chen, HaiTeng Deng, Jiang-Ping Song, Sheng-Shou Hu
Arrhythmogenic right ventricular cardiomyopathy (ARVC) is hereditary cardiomyopathy characterized by the fibro-fatty replacement of the myocardium. A small number of noncomprehensive profiling studies based on human cardiac tissues have been conducted and reported; consequently, ARVC's gene expression pattern characteristics remain largely undocumented. Our study applies large-scaled, quantitative proteomics based on TMT-labeled LC-MS/MS to analyze the left and right ventricular myocardium of four ARVC and four DCM explanted hearts to compare them with normal hearts...
July 13, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/28645928/molecular-mechanisms-in-cardiomyopathy
#15
REVIEW
Keith Dadson, Ludger Hauck, Filio Billia
Cardiomyopathies represent a heterogeneous group of diseases that negatively affect heart function. Primary cardiomyopathies specifically target the myocardium, and may arise from genetic [hypertrophic cardiomyopathy (HCM), arrhythmogenic right ventricular cardiomyopathy/dysplasia (ARVC/D), mitochondrial cardiomyopathy] or genetic and acquired [dilated cardiomyopathy (DCM), restrictive cardiomyopathy (RCM)] etiology. Modern genomics has identified mutations that are common in these populations, while in vitro and in vivo experimentation with these mutations have provided invaluable insight into the molecular mechanisms native to these diseases...
July 1, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28638576/a-classic-case-of-arrhythmogenic-right-ventricular-cardiomyopathy-arvc-and-literature-review
#16
Htun Latt, Thein Tun Aung, Chanwit Roongsritong, David Smith
Arrhythmogenic Right Ventricular Cardiomyopathy (ARVC) is a relatively under-recognized hereditary cardiomyopathy. It is characterized pathologically by fibro-fatty infiltration of right ventricular (RV) myocardium and clinically by consequences of RV electrical instability. Timely intervention with device therapy and pharmacotherapy may help reduce the risk of arrhythmic events or sudden cardiac death. Here, we describe a classic case of a young adult with ARVC and a brief literature review. The patient presented with exertional palpitations and ARVC was suspected after his routine electrocardiogram (EKG) revealed symmetric T wave inversions and possible epsilon waves in right precordial leads...
March 2017: Journal of Community Hospital Internal Medicine Perspectives
https://www.readbyqxmd.com/read/28633348/lifelong-arrhythmic-risk-stratification-in-arrhythmogenic-right-ventricular-cardiomyopathy-distribution-of-events-and-impact-of-periodical-reassessment
#17
Chiara Cappelletto, Davide Stolfo, Antonio De Luca, Bruno Pinamonti, Giulia Barbati, Alberto Pivetta, Marco Gobbo, Francesca Brun, Marco Merlo, Gianfranco Sinagra
Aims: The arrhythmic risk stratification of arrhythmogenic right ventricular cardiomyopathy (ARVC) remains controversial. We evaluated the long-term distribution of life-threatening arrhythmic events assessing the impact of periodical risk reassessment. Methods and results: Ninety-eight ARVC patients with no previous major ventricular arrhythmias were retrospectively analysed. Patients were assessed at baseline, at 22 [inter-quartile range (IQR) 16-26], 49 (IQR 41-55) and 97 months (IQR 90-108)...
June 13, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28578331/whole-genome-sequence-identified-a-rare-homozygous-pathogenic-mutation-of-the-dsg2-gene-in-a-familial-arrhythmogenic-cardiomyopathy-involving-both-ventricles
#18
Yubi Lin, Qianhuan Zhang, Zhi An Zhong, Zhe Xu, Siqi He, Fang Rao, Yang Liu, Jiaojiao Tang, Feng Wang, Hui Liu, Jiajun Xie, Hongmei Wu, Shuxia Wang, Xin Li, Zhixin Shan, Chunyu Deng, Zili Liao, Hai Deng, Hongtao Liao, Yumei Xue, Wanqun Chen, Xianzhang Zhan, Bin Zhang, Shulin Wu
BACKGROUND: This study was designed to identify the pathogenic mutation in a Chinese family with arrhythmogenic right ventricular cardiomyopathy/dysplasia (ARVC/D) using whole genome sequencing (WGS). METHODS AND RESULTS: Probands II:1 and II:2 underwent routine examinations for diagnosis. Genomic DNA was extracted from the peripheral blood of family members and analyzed using WGS. A total of 60,285 single-nucleotide polymorphisms (SNP) and 13,918 insertions/deletions (InDel) occurring in the exonic regions of genes and predisposing to cardiomyopathies and arrhythmias were identified...
2017: Cardiology
https://www.readbyqxmd.com/read/28575228/right-ventricular-outflow-tract-dimensions-in-arrhythmogenic-right-ventricular-cardiomyopathy-dysplasia-a-multicentre-study-comparing-echocardiography-and-cardiovascular-magnetic-resonance
#19
Alexander Gotschy, Ardan M Saguner, Markus Niemann, Sandra Hamada, Deniz Akdis, Ji-Na Yoon, Elena V Parmon, Victoria Delgado, Jeroen J Bax, Sebastian Kozerke, Corinna Brunckhorst, Firat Duru, Felix C Tanner, Robert Manka
Aims: Right ventricular outflow tract (RVOT) dilation is one of the echocardiographic criteria in the 2010 revised Task Force Criteria (TFC) of arrhythmogenic right ventricular cardiomyopathy/dysplasia (ARVC/D). However, studies comparing cardiac magnetic resonance (CMR) and transthoracic echocardiography (TTE) suggest a lower diagnostic accuracy of TTE due to its operator dependence and limited reproducibility. The goal of this study was to compare the 2010 TFC measures of RVOT dilation with three alternative measures for improving the echocardiographic assessment of RVOT in patients with ARVC/D...
May 26, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/28527814/desmoplakin-missense-and-non-missense-mutations-in-arrhythmogenic-right-ventricular-cardiomyopathy-genotype-phenotype-correlation
#20
Silvia Castelletti, Annina S Vischer, Petros Syrris, Lia Crotti, Carla Spazzolini, Alice Ghidoni, Gianfranco Parati, Sharon Jenkins, Maria-Christina Kotta, William J McKenna, Peter J Schwartz, Antonis Pantazis
BACKGROUND: Arrhythmogenic right ventricular cardiomyopathy (ARVC) is traditionally considered as primarily affecting the right ventricle. Mutations in genes encoding desmosomal proteins account for 40-60% of cases. Genotype-phenotype correlations are scant and mostly non gene-specific. Accordingly, we assessed the genotype-phenotype correlation for desmoplakin (DSP) missense and non-missense mutations causing ARVC. METHODS AND RESULTS: We analyzed 27 ARVC patients carrying a missense or a non-missense DSP mutation, with complete clinical assessment...
May 10, 2017: International Journal of Cardiology
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