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https://www.readbyqxmd.com/read/28822806/pericardial-adipose-and-aromatase-a-new-translational-target-for-aging-obesity-and-arrhythmogenesis
#1
Gabriel B Bernasochi, Wah Chin Boon, Claire L Curl, Upasna Varma, Salvatore Pepe, Marianne Tare, Laura J Parry, Evdokia Dimitriadis, Stephen B Harrap, Chrishan J Nalliah, Jonathan M Kalman, Lea M D Delbridge, James R Bell
A correlation exists between the extent of pericardial adipose and atrial fibrillation (AF) risk, though the underlying mechanisms remain unclear. Selected adipose depots express high levels of aromatase, capable of converting androgens to estrogens - no studies have investigated aromatase occurrence/expression regulation in pericardial adipose. The Women's Health Initiative reported that estrogen-only therapy in women elevated AF incidence, indicating augmented estrogenic influence may exacerbate cardiac vulnerability...
August 16, 2017: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/28822649/a-complex-heart-team-s-approach-to-a-patient-with-giant-cell-myocarditis
#2
Michal Pazdernik, Ivan Netuka, Jiri Maly, Jiri Kettner, Ludek Voska, Hynek Riha, Jan Pirk, Vojtech Melenovsky, Josef Kautzner
Giant cell myocarditis is known as a rare and frequently fatal type of myocarditis that is usually characterized by progressive congestive heart failure and frequent ventricular arrhythmias. We report a rare case of giant cell myocarditis in a 64-year-old previously healthy woman. The case was complicated by the rapid development of progressive acute heart failure, which required the comprehensive care of our heart team. Using a broad spectrum of therapeutic approaches, the patient successfully underwent heart transplantation...
June 10, 2017: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/28822614/heterogeneity-in-a-large-pedigree-with-danon-disease-implications-for-pathogenesis-and-management
#3
Jonathan C P Roos, Matthew J Daniels, Elizabeth Morris, Hanna I Hyry, Timothy M Cox
BACKGROUND: Danon disease is an X-linked disturbance of autophagy manifesting with cognitive impairment and disordered heart and skeletal muscle. After a period of relative stability, patients deteriorate rapidly and may quickly become ineligible for elective heart transplantation - the only life-saving therapy. METHODS: We report a large pedigree with diverse manifestations of Danon disease in hemizygotes and female heterozygotes. RESULTS: Malignant cardiac arrhythmias requiring amiodarone treatment induced thyroid disease in two patients; intractable thyrotoxicosis, which enhances autophagy, caused the death of a 21year-old man...
June 21, 2017: Molecular Genetics and Metabolism
https://www.readbyqxmd.com/read/28822531/cardio-oncology-a-new-subspecialty-with-collaboration-at-its-heart
#4
REVIEW
Arjun K Ghosh, J Malcolm Walker
Cardio-Oncology is the care of cancer patients with cardiovascular disease, overt or occult, already established or acquired during treatment. Cancer patients can present with a variety of cardiovascular problems not all of which are directly related to cancer therapy (medications or radiotherapy). The cardiovascular problems of oncology patients can range from ischaemia to arrhythmias and can also include valve problems and heart failure. As such, within cardiology, teamwork is required with members of different cardiology subspecialties...
July 2017: Indian Heart Journal
https://www.readbyqxmd.com/read/28822529/atrial-fibrillation-and-hyperthyroidism-a-literature-review
#5
REVIEW
Vivek Reddy, Wael Taha, Shanker Kundumadam, Mazhar Khan
Atrial fibrillation is the most common arrhythmia worldwide with increasing frequency noted with age. Hyperthyroidism is a well-known cause of atrial fibrillation with a 16%-60% prevalence of atrial fibrillation in patients with known hyperthyroidism Ross et al. (2016). While hyperthyroidism as a causative factor of atrial fibrillation is well established, this literature review aims to answer several questions on this topic including: 1. The relationship of atrial fibrillation to hyperthyroidism 2. Atrial fibrillation as a predictor of hyperthyroidism 3...
July 2017: Indian Heart Journal
https://www.readbyqxmd.com/read/28822504/is-smog-innocuous-air-pollution-and-cardiovascular-disease
#6
EDITORIAL
Sundeep Mishra
Air pollution is a significant environmental and health hazard. Earlier studies had examined the adverse health effects associated with short- and long-term exposure to particulate matter on respiratory disease. However, later studies demonstrated that was actually cardiovascular disease that accounted for majority of mortality. Furthermore, it was not gaseous pollutants like oxides of nitrate, sulfur, carbon mono-oxide or ozone but the particulate matter or PM, of fine or coarse size (PM2.5 and PM10) which was linearly associated with mortality; PM2...
July 2017: Indian Heart Journal
https://www.readbyqxmd.com/read/28821963/myocardial-regenerative-therapy-using-a-scaffold-free-skeletal-muscle-derived-cell-sheet-in-patients-with-dilated-cardiomyopathy-even-under-a-left-ventricular-assist-device-a-safety-and-feasibility-study
#7
Yasushi Yoshikawa, Shigeru Miyagawa, Koichi Toda, Atsuhiro Saito, Yasushi Sakata, Yoshiki Sawa
BACKGROUND AND PURPOSE: Despite promising experimental results, clinically, intramyocardial myoblast injection failed to reverse remodeling and it induced arrhythmogenicity. In contrast, scaffold-free skeletal muscle-derived cell (SC) sheets attenuated cardiac dysfunction and arrhythmogenicity via paracrine effects. We report the first clinical trial of SC sheet implantation (SCSI) conducted in four patients with dilated cardiomyopathy (DCM) supported by a left ventricular assist device (LVAD)...
August 18, 2017: Surgery Today
https://www.readbyqxmd.com/read/28821956/effects-of-ageing-on-pro-arrhythmic-ventricular-phenotypes-in-incrementally-paced-murine-pgc-1%C3%AE-hearts
#8
Shiraz Ahmad, Haseeb Valli, Charlotte E Edling, Andrew A Grace, Kamalan Jeevaratnam, Christopher L-H Huang
A range of chronic clinical conditions accompany cardiomyocyte energetic dysfunction and constitute independent risk factors for cardiac arrhythmia. We investigated pro-arrhythmic and arrhythmic phenotypes in energetically deficient C57BL mice with genetic ablation of the mitochondrial promoter peroxisome proliferator-activated receptor-γ coactivator-1β (Pgc-1β), a known model of ventricular arrhythmia. Pro-arrhythmic and cellular action potential (AP) characteristics were compared in intact Langendorff-perfused hearts from young (12-16 week) and aged (> 52 week), wild-type (WT) and Pgc-1β (-/-) mice...
August 18, 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/28821262/pre-operative-serum-vcam-1-as-a-biomarker-of-atrial-fibrillation-after-coronary-artery-bypass-grafting
#9
Leanne Harling, Jonathan Lambert, Hutan Ashrafian, Ara Darzi, Nigel J Gooderham, Thanos Athanasiou
OBJECTIVE: Systemic inflammation is a recognised contributory factor in the pathogenesis of de novo post-operative atrial fibrillation after cardiac surgery. This study aims to determine whether serum soluble vascular endothelial cell adhesion molecule (sVCAM-1) may predict the onset of POAF in patients under going coronary artery bypass grafting. METHODS: 34 patients undergoing non-emergent, on-pump CABG were prospectively recruited. Plasma was obtained at 24 h pre-operatively and at 48 and 96 h post-operatively...
August 18, 2017: Journal of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/28820557/papillary-muscle-rupture-in-an-adolescent-with-no-coronary-lesions
#10
Tatjana Lejko Zupanc, Mateja Logar
A 21-year-old man with Wolff-Parkinson-White syndrome presented to the authors' hospital with ventricular fibrillation. Coronary angiography failed to demonstrate coronary stenosis, but temporary mechanical circulatory support resolved the ventricular fibrillation and the patient was extubated eight days later. On the next day, however, he had to be re-intubated with symptoms of congestive heart failure. Echocardiography revealed new severe mitral regurgitation and a mobile mass, while emergency surgery revealed a posteromedial papillary muscle rupture (PMR)...
March 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28819885/adenosine-assisted-clipping-of-intracranial-aneurysms
#11
Torstein R Meling, Luis Romundstad, Geir Niemi, Jon Narum, Per Kristian Eide, Angelika G Sorteberg, Wilhelm A Sorteberg
Temporary parent vessel clip occlusion in aneurysm surgery is not always practical or feasible. Adenosine-induced transient cardiac arrest may serve as an alternative. We retrospectively reviewed our clinical database between September 2011 and July 2014. All patients who underwent microsurgical clipping of intracranial aneurysms under adenosine-induced asystole were included. A total of 18 craniotomies were performed, and 18 aneurysms were clipped under adenosine-induced asystole (7 basilar arteries, 8 internal carotid arteries, 1 middle cerebral artery, and 1 anterior communicating artery) in 16 patients (10 females, 6 males)...
August 17, 2017: Neurosurgical Review
https://www.readbyqxmd.com/read/28819411/comprehensive-study-of-prognostic-risk-factors-of-patients-underwent-pneumonectomy
#12
Chang Gu, Rui Wang, Xufeng Pan, Qingyuan Huang, Jizhuang Luo, Jiajie Zheng, Yiyang Wang, Jianxin Shi, Haiquan Chen
Introduction: To investigate postoperative complications and the prognostic risk factors of patients underwent pneumonectomy. Methods: Four hundred and six patients underwent pneumonectomy were subjected to the study. All the clinicopathologic data including age, gender, smoking history, surgical treatment, postoperative complications, tumor staging and the follow-up information were investigated. Results: The 30-day and 90-day mortality rates were 3.2% and 6.2%, respectively. Postoperative complications developed in 149 patients (36...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28819033/allele-specific-gene-silencing-another-step-in-the-inexorable-advance-of-gene-therapy-for-cardiac-arrhythmia-management
#13
EDITORIAL
Stanley Nattel
No abstract text is available yet for this article.
August 18, 2017: Circulation Research
https://www.readbyqxmd.com/read/28818746/patients-with-atrial-fibrillation-and-coronary-artery-disease-double-trouble
#14
REVIEW
Ewelina Michniewicz, Elżbieta Mlodawska, Paulina Lopatowska, Anna Tomaszuk-Kazberuk, Jolanta Malyszko
Coronary artery disease (CAD) is the most common cardiovascular disease while atrial fibrillation (AF) is the most common cardiac arrhythmia. Both diseases share associated risk factors - hypertension, diabetes mellitus, sleep apnea, obesity and smoking. Moreover, inflammation plays a causative role in both diseases. The prevalence of CAD in patients with AF is from 17% to 46.5% while the prevalence of AF among patients with CAD is low and it is estimated from 0.2% to 5%. AF is a well-established factor of poor short- and long-term prognosis in patients with acute myocardial infarction (AMI) and is associated with a marked increase in overall mortality...
August 14, 2017: Advances in Medical Sciences
https://www.readbyqxmd.com/read/28818530/recent-developments-in-clinical-trials-of-botulinum-neurotoxins
#15
Antoniangela Cocco, Alberto Albanese
Botulinum neurotoxins (BoNTs) are increasingly used in clinical practice for several indications. Following the pioneering years of discoveries, the recent years have witnessed an increase of new indications and new toxin brands. We review here the clinical trials on BoNTs performed since 2014 and put them into perspective. We also review the ongoing trials listed by the National Institutes of Health registry (Clinicaltrials.gov). The following indications are reviewed here: blepharospasm, cervical dystonia, spasticity, cerebral palsy, urinary incontinence, headache, topical formulations, postoperative cardiac arrhythmia, keloids and scars...
August 14, 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/28818336/association-between-premature-ventricular-complexes-during-exercise-long-term-occurrence-of-life-threatening-arrhythmia-and-mortality
#16
Jorge Aviles-Rosales, Hermes Ilarraza-Lomeli, Marianna Garcia-Saldivia, Jessica Rojano-Castillo, Maria-Dolores Rius-Suarez, Juan-Pablo Nunez-Urquiza, Pedro Iturralde
OBJECTIVE: Exercise-induced premature ventricular complexes (EiPVCs) are often considered as benign arrhythmias, nevertheless they are associated with a high risk of all-cause death in general healthy population. However, an intermediate pathophysiological process remains unclear, particularly in patients with known cardiovascular disease. The aim of this study was to find an association between EiPVCs, the occurrence of life-threatening ventricular arrhythmias (LACO) and all-cause mortality in patients with cardiovascular disease...
August 14, 2017: Archivos de Cardiología de México
https://www.readbyqxmd.com/read/28818065/case-reports-of-two-pedigrees-with-recessive-arrhythmogenic-right-ventricular-cardiomyopathy-associated-with-homozygous-thr335ala-variant-in-dsg2
#17
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/28817542/safety-of-transesophageal-echocardiography%C3%A2-guided-electrical-cardioversion-in-patients-with-atrial-fibrillation-and-inadequate-anticoagulation
#18
Joanna Zaprutko, Artur Baszko, Michał Michalak, Karol Kochman, Radosław Szymański, Jan Kłopocki, Anna Nowicka, Rafał Dankowski, Marek Michalski, Piotr Kałmucki, Andrzej Szyszka
INTRODUCTION    Restoring sinus rhythm in patients with atrial fibrillation (AF)/atrial flutter (AFl) requires adequate oral anticoagulation prior to direct current cardioversion (DCC). Some patients eligible for DCC are not properly anticoagulated. OBJECTIVES    The aim of the study was to assess risk factors for thrombus and spontaneous echo contrast (SEC) in the left atrium (LA) as well as the safety profile of transesophageal echocardiography (TEE)-guided DCC in patients with inadequate anticoagulation...
August 9, 2017: Polish Archives of Internal Medicine
https://www.readbyqxmd.com/read/28817241/association-between-vitamin-d-deficiency-and-heart-failure-risk-in-the-elderly
#19
Catarina Magalhães Porto, Vanessa De Lima Silva, João Soares Brito da Luz, Brivaldo Markman Filho, Vera Magalhães da Silveira
AIMS: The aim of this study was to evaluate the association between vitamin D deficiency and risk of heart failure in elderly patients of cardiology outpatient clinics. METHODS AND RESULTS: A cross-sectional study with an analytical approach was employed. Clinical data were collected from the elderly from August 2015 to February 2016. The dependent variable was the risk of heart failure; the independent variable was vitamin D deficiency; and intervening factors were age, gender, education, ethnicity, hypertension, diabetes mellitus, hypothyroidism, renal failure, dementia, stroke, dyslipidaemia, depression, smoking, alcoholism, obesity, andropause, and cardiac arrhythmia...
August 17, 2017: ESC Heart Failure
https://www.readbyqxmd.com/read/28816949/whole-exome-sequencing-identifies-a-kcnj12-mutation-as-a-cause-of-familial-dilated-cardiomyopathy
#20
Hai-Xin Yuan, Kai Yan, Dong-Yan Hou, Zhi-Yong Zhang, Hua Wang, Xin Wang, Juan Zhang, Xiao-Rong Xu, Yan-Hong Liang, Wen-Shu Zhao, Lin Xu, Lin Zhang
Dilated cardiomyopathy (DCM) is characterized by left ventricular dilation, and is associated with systolic dysfunction and increased action potential duration. Approximately 50% of DCM cases are caused by inherited gene mutations with genetic and phenotypic heterogeneity. Next generation sequencing may be useful in screening unknown mutations in such cases.A family was identified with DCM, in which the affected family members developed heart failure, arrhythmia, and sudden death. Probands and 4 affected family members underwent whole exome sequencing (WES), bioinformatics methods, and gene annotation to identify potentially causative variants...
August 2017: Medicine (Baltimore)
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