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https://www.readbyqxmd.com/read/28214155/genetic-tests-in-the-assessment-of-patients-and-at-risk-relatives-the-example-of-hypertrophic-cardiomyopathy
#1
Jorge Manuel Saraiva
No abstract text is available yet for this article.
February 14, 2017: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
https://www.readbyqxmd.com/read/28214152/clinical-and-genetic-diagnosis-of-familial-hypertrophic-cardiomyopathy-results-in-pediatric-cardiology
#2
Bárbara Cardoso, Inês Gomes, Petra Loureiro, Conceição Trigo, Fátima Ferreira Pinto
INTRODUCTION: Hypertrophic cardiomyopathy (HCM) is most often of autosomal dominant inheritance with incomplete penetrance and variable expression. The main purpose of family screening is to identify relatives with unrecognized HCM and to monitor those at risk for disease, in order to minimize complications and to assess risk of sudden cardiac death. The ESC and ACCF/AHA guidelines on the diagnosis and management of HCM recommend the screening of child relatives from the age of 10-12 years...
February 14, 2017: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
https://www.readbyqxmd.com/read/28214001/comparison-of-pulmonary-venous-and-left-atrial-remodeling-in-patients-with-atrial-fibrillation-with-hypertrophic-cardiomyopathy-versus-with-hypertensive-heart-disease
#3
Kentaro Yoshida, Hideyuki Hasebe, Yasuaki Tsumagari, Hidekazu Tsuneoka, Mari Ebine, Yoshiko Uehara, Yoshihiro Seo, Kazutaka Aonuma, Noriyuki Takeyasu
Left ventricular diastolic dysfunction in hypertrophic cardiomyopathy (HC) increases susceptibility to atrial fibrillation. Although phenotypical characteristics of the hypertrophied left ventricle are clear, left atrial (LA) and pulmonary venous (PV) remodeling has rarely been investigated. This study aimed to identify differences in LA and PV remodeling between HC and hypertensive heart disease (HHD) using 3-dimensional computed tomography. Included were 33 consecutive patients with HC, 25 with HHD, and 29 without any co-morbidities who were referred for catheter ablation of atrial fibrillation...
January 25, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28213270/myocardial-leptin-transcription-in-feline-hypertrophic-cardiomyopathy
#4
Sonja Fonfara, Sarah Kitz, Udo Hetzel, Anja Kipar
Leptin is an adipokine, which is in humans with cardiac disease suspected to be involved in myocardial remodeling and thrombus formation. In cats, however, it is not known whether leptin plays a role in cardiac disease, i.e. hypertrophic cardiomyopathy (HCM) and the presence of an atrial thrombus (AT). The objective of the study was therefore to establish whether leptin is transcribed in the feline myocardium and to compare myocardial leptin mRNA concentrations in cats with HCM with and without AT, and in cats without cardiac diseases...
February 13, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28209216/hypertrophic-cardiomyopathy-with-left%C3%A2-ventricular-apical-aneurysm-implications-for-risk-stratification-and-management
#5
Ethan J Rowin, Barry J Maron, Tammy S Haas, Ross F Garberich, Weijia Wang, Mark S Link, Martin S Maron
BACKGROUND: A previously under-recognized subset of hypertrophic cardiomyopathy (HCM) patients with left ventricular (LV) apical aneurysms is being identified with increasing frequency. However, risks associated with this subgroup are unknown. OBJECTIVES: The authors aimed to clarify clinical course and prognosis of a large cohort of HCM patients with LV apical aneurysms over long-term follow-up. METHODS: The authors retrospectively analyzed 1,940 consecutive HCM patients at 2 centers, 93 of which (4...
February 21, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28201496/other-side-of-the-coin-the-missing-heritability-in-hypertrophic-cardiomyopathy
#6
Adam S Helms, Sharlene M Day
No abstract text is available yet for this article.
February 13, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28197645/subclinical-decrease-in-myocardial-function-in-asymptomatic-infants-of-diabetic-mothers-a-tissue-doppler-study
#7
Jenny E Zablah, Dorota Gruber, Guillaume Stoffels, Estefania G Cabezas, Denise A Hayes
Infants of diabetic mothers (IDMs) with hypertrophic cardiomyopathy are recognized to have impaired myocardial performance, but less is known about ventricular function in IDMs without hypertrophy. We hypothesized that in asymptomatic newborns with normal two-dimensional echocardiographic evaluations, pulsed wave tissue Doppler imaging (TDI) would suggest a subclinical decrease in the cardiac function of IDMs compared to infants of non-diabetics (nIDMs). This is a retrospective cohort study of asymptomatic neonates ≥36 weeks gestation, at 0-7 days of life, with normal standard echocardiograms...
February 14, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28197289/cardiac-amyloidosis-masked-as-hypertrophic-cardiomyopathy-a-case-report
#8
Jing Wang, Amy Marzolf, Janet C L Zhang, Anjali Owens, Yuchi Han
It is well known that cardiac amyloidosis and hypertrophic cardiomyopathy (HCM) have different physiologies and pathologies. However, it might be difficult to differentiate cardiac amyloidosis from HCM in certain clinical situations.
October 2016: Cardiology Research
https://www.readbyqxmd.com/read/28194469/phenylephrine-induced-cardiac-hypertrophy-is-attenuated-by-a-histone-acetylase-inhibitor-anacardic-acid-in-mice
#9
Chang Peng, Xiaomei Luo, Shuo Li, Huichao Sun
Cardiac hypertrophy is a complex process involving highly coordinated but tight regulation of multiple elements, such as in epigenetics, which make an important contribution to myocardium remodeling and cardiac hypertrophy. Epigenetic regulations, particularly histone acetylation, have been implicated in cardiac hypertrophy, however, the exact mechanism is still largely unknown. In the present study, we explored the potential attenuating effects of Chinese herbal extract anacardic acid on phenylephrine-induced cardiac hypertrophy and the underlying mechanism...
February 14, 2017: Molecular BioSystems
https://www.readbyqxmd.com/read/28193615/phenotype-genotype-correlation-in-hypertrophic-cardiomyopathy-less-signal-more-noise
#10
EDITORIAL
Albree Tower-Rader, Milind Y Desai
No abstract text is available yet for this article.
February 2017: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28193612/lack-of-phenotypic-differences-by-cardiovascular-magnetic-resonance-imaging-in-myh7-%C3%AE-myosin-heavy-chain-versus-mybpc3-myosin-binding-protein-c-related-hypertrophic-cardiomyopathy
#11
Adaya Weissler-Snir, Waseem Hindieh, Christiane Gruner, Dana Fourey, Evan Appelbaum, Ethan Rowin, Melanie Care, John R Lesser, Tammy S Haas, James E Udelson, Warren J Manning, Iacopo Olivotto, Benedetta Tomberli, Barry J Maron, Martin S Maron, Andrew M Crean, Harry Rakowski, Raymond H Chan
BACKGROUND: The 2 most commonly affected genes in hypertrophic cardiomyopathy (HCM) are MYH7 (β-myosin heavy chain) and MYBPC3 (β-myosin-binding protein C). Phenotypic differences between patients with mutations in these 2 genes have been inconsistent. Scarce data exist on the genotype-phenotype association as assessed by tomographic imaging using cardiac magnetic resonance imaging. METHODS AND RESULTS: Cardiac magnetic resonance imaging was performed on 358 consecutive genotyped hypertrophic cardiomyopathy probands at 5 tertiary hypertrophic cardiomyopathy centers...
February 2017: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28193509/pilot-study-analyzing-automated-ecg-screening-of-hypertrophic-cardiomyopathy
#12
Matthew Campbell, Xuefu Zhou, Chia Han, Hedayat Abrishami, Gregory Webster, Christina Y Miyake, Christopher T Sower, Jeffery B Anderson, Timothy K Knilans, Richard J Czosek
BACKGROUND: Hypertrophic cardiomyopathy (HCM) is one of the leading causes of sudden cardiac death in athletes. However, pre-participation ECG screening has often been criticized for failing to meet cost-effectiveness thresholds, in part because of high false-positive rates and the cost of ECG screening itself. OBJECTIVES: To assess the testing characteristics of an automated ECG algorithm designed to screen for HCM in a multi-institutional pediatric cohort. METHODS: ECGs from patients with HCM aged 12 - 20 years from 3 pediatric institutions were screened for ECG criteria for HCM using a previously described automated computer algorithm developed specifically for HCM ECG screening...
February 10, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28183843/left-atrial-size-and-function-in-hypertrophic-cardiomyopathy-patients-and-risk-of-new-onset-atrial-fibrillation
#13
Philippe Debonnaire, Emer Joyce, Yasmine Hiemstra, Bart J Mertens, Douwe E Atsma, Martin J Schalij, Jeroen J Bax, Victoria Delgado, Nina Ajmone Marsan
BACKGROUND: The value of left atrial (LA) diameter, volume, and strain to risk stratify hypertrophic cardiomyopathy patients for new-onset atrial fibrillation (AF) was explored. METHODS AND RESULTS: A total of 242 hypertrophic cardiomyopathy patients without AF history were evaluated by (speckle-tracking) echocardiography. During mean follow-up of 4.8±3.7 years, 41 patients (17%) developed new-onset AF. Multivariable analysis showed LA volume (≥37 mL/m(2); hazard ratio, 2...
February 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/28183509/assessment-of-myocardial-microstructural-dynamics-by-in%C3%A2-vivo-diffusion-tensor-cardiac-magnetic-resonance
#14
Sonia Nielles-Vallespin, Zohya Khalique, Pedro F Ferreira, Ranil de Silva, Andrew D Scott, Philip Kilner, Laura-Ann McGill, Archontis Giannakidis, Peter D Gatehouse, Daniel Ennis, Eric Aliotta, Majid Al-Khalil, Peter Kellman, Dumitru Mazilu, Robert S Balaban, David N Firmin, Andrew E Arai, Dudley J Pennell
BACKGROUND: Cardiomyocytes are organized in microstructures termed sheetlets that reorientate during left ventricular thickening. Diffusion tensor cardiac magnetic resonance (DT-CMR) may enable noninvasive interrogation of in vivo cardiac microstructural dynamics. Dilated cardiomyopathy (DCM) is a condition of abnormal myocardium with unknown sheetlet function. OBJECTIVES: This study sought to validate in vivo DT-CMR measures of cardiac microstructure against histology, characterize microstructural dynamics during left ventricular wall thickening, and apply the technique in hypertrophic cardiomyopathy (HCM) and DCM...
February 14, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28181243/proteasome-dysfunction-in-cardiomyopathies
#15
Jennifer E Gilda, Aldrin V Gomes
The ubiquitin-proteasome system (UPS) plays a critical role in removing unwanted intracellular proteins and is involved in protein quality control, signalling, and cell death. Because the heart is subject to continuous metabolic and mechanical stress, the proteasome plays a particularly important role in the heart, and proteasome dysfunction has been suggested as a causative factor in cardiac dysfunction. Proteasome impairment has been detected in cardiomyopathies, heart failure, myocardial ischemia, and hypertrophy...
February 8, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28174411/-primary-lung-cancer-associated-with-dilated-phase-of-hypertrophic-cardiomyopathy-report-of-a-case
#16
Takehiro Sakai, Takao Tsushima, Daisuke Kimura, Ryo Hatanaka, Masahiro Sawada, Yutaka Sato
A 66-year-old man diagnosed as dilated phase of hypertrophic cardiomyopathy (D-HCM) was pointed out an abnormal shadow on routine chest radiography. The patient had past medical history of hypertension, congestive heart failure and chronic obstructive pulmonary disease. The computed tomography showed a 3.8 cm-sized tumor in the left lower lobe of the lung, and histopathological examination revealed squamous cell carcinoma (cT2aN0-1M0, cStage I B-II A). Cardiosonography showed diffuse hypokinesis from basal to mid area, and ejection fraction was 36...
February 2017: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/28169556/blood-pressure-dynamics-during-exercise-rehabilitation-in-heart-failure-patients
#17
Idan Hecht, Michael Arad, Dov Freimark, Robert Klempfner
Background Patients suffering from heart failure (HF) may demonstrate an abnormal blood pressure response to exercise (ABPRE), which may revert to a normal one following medical treatment. It is assumed that this change correlates positively with prognosis and functional aspects. The aim of this study was to characterize patients with ABPRE and assess ABPRE normalization and the correlation with clinical and functional outcomes. Methods In the study, 651 patients with HF who underwent cardiac rehabilitation (CR) were examined...
January 1, 2017: European Journal of Preventive Cardiology
https://www.readbyqxmd.com/read/28167689/yamaguchi-syndrome-presenting-as-atrioventricular-nodal-re-entrant-tachycardia-in-an-african-american-patient
#18
Nellowe Candelario, Jorge Penalver, Mitali Sen
Apical hypertrophic cardiomyopathy (Yamaguchi syndrome) is a rare subtype of hypertrophic cardiomyopathy. The syndrome is more common in Japan where it was first described. Outside Asia, it is a very rare cause of hypertrophic cardiomyopathy. Apical hypertrophic cardiomyopathy is usually detected incidentally and has a good long-term outcome. We present a case of apical hypertrophic cardiomyopathy in an African-American patient manifesting as atrioventricular nodal re-entrant tachycardia.
February 6, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28166323/a-patient-with-hypertrophic-cardiomyopathy-presenting-in-cardiac-arrest
#19
Jin Ge, Nora Goldschlager
No abstract text is available yet for this article.
February 6, 2017: JAMA Internal Medicine
https://www.readbyqxmd.com/read/28164011/outcomes-in-hypertrophic-cardiomyopathy-patients-with-and-without-atrial-fibrillation-a-survival-meta-analysis
#20
Ahmad Masri, Mohamed Kanj, Maran Thamilarasan, Oussama Wazni, Nicholas G Smedira, Harry M Lever, Milind Y Desai
BACKGROUND: Atrial fibrillation (AF) is a frequent occurrence in patients with hypertrophic cardiomyopathy (HCM). It is associated with worsening symptoms, cardiovascular events, and mortality. We conducted a meta-analysis of studies reporting on mortality in patient with HCM and AF. METHODS: We searched PubMed, Medline, Embase, Ovid and Cochrane for studies which reported cardiovascular events and mortality in patients with HCM and AF. Outcome was a composite of cardiac mortality and/or all-cause mortality...
February 2017: Cardiovascular Diagnosis and Therapy
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