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https://www.readbyqxmd.com/read/28230637/mtor-inhibition-and-cardiovascular-diseases-cardiac-hypertrophy
#1
Ernesto Paoletti
Left ventricular hypertrophy (LVH) is highly prevalent in kidney transplant recipients, and is associated with poor clinical outcome. Immunosuppressive agents might affect LVH behavior after kidney transplantation. This review is an appraisal of available data regarding LVH in renal transplantation and especially of studies that evaluated LVH response to treatment. In particular, the role of mammalian target of rapamycin inhibitors adopted as immunosuppressive agents in kidney transplantation is reviewed in the light of recent studies that have shown LVH regression induced by this class of medications in kidney transplant recipients with posttransplant cardiomyopathy...
February 23, 2017: Transplantation
https://www.readbyqxmd.com/read/28229422/therapeutic-application-of-adult-stem-cells-in-the-heart
#2
Taylor A Johnson, Dinender K Singla
Cell therapies have been explored as a potential treatment avenue to treat heart diseases, such as myocardial infarction, doxorubicin-induced cardiomyopathy, and heart failure. Embryonic and adult stem cells (ASCs) have been examined in animal and clinical settings. Unlike embryonic and induced pluripotent stem cells, ASCs do not pose a threat to form teratomas, nor do they have immune system concerns, making them ideal for therapeutic use in humans. In this review, we will investigate different characteristics and sources of adult stem cells and progenitor cells, as well as determine their efficacy in cell transplantation in experimental and clinical trials...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28229201/-sudden-cardiac-death-epidemiology-pathophysiology-and-risk-stratification
#3
B Rudic, E Tülümen, V Liebe, J Kuschyk, I Akin, M Borggrefe
Sudden cardiac death (SCD) remains a major public health burden despite revolutionary progress in the last three decades in the treatment of ventricular tachyarrhythmia with the use of implantable cardioverter defibrillator (ICD) therapy. Survivors of sudden cardiac arrest are at high risk for recurrent tachyarrhythmia events. Early recognition of low left ventricular ejection fractions (≤35%) as a strong predictor of mortality and the causal association between ventricular tachyarrhythmia and SCD has led to a significant development of not only pharmacological antiarrhythmic therapy but also device-based prevention of SCD...
February 22, 2017: Herz
https://www.readbyqxmd.com/read/28229199/-coronary-artery-disease-interventional-and-operative-therapeutic-options-after-cardiac-arrest
#4
M Behnes, K Mashayekhi, M Borggrefe, I Akin
Coronary artery disease (CAD) represents a common structural cause for developing cardiac arrest in older patients, whereas in young adults cardiac arrest is more often caused by cardiomyopathies and cardiac channelopathies. A structural heart disease is known in almost 50% of patients prior to cardiac arrest. The present review outlines current interventional and operative therapeutic options for patients surviving cardiac arrest. The focus is on associations between epidemiological data on the incidence of malignant arrhythmias causing cardiac arrest depending on the presence or absence of CAD...
February 22, 2017: Herz
https://www.readbyqxmd.com/read/28229198/-catheter-ablation-of-ventricular-tachycardia-what-have-we-achieved
#5
T Konrad, B A Hoffmann, T Rostock
The role of catheter ablation in patients with ventricular tachycardia (VT) has evolved over the last two decades into an established treatment option. In patients with idiopathic VT catheter ablation is the gold standard treatment option with high effectiveness and low risk of complications. Due to the high risk of side effects the use of antiarrhythmic drugs is only indicated in exceptional cases. In patients with structural heart diseases, such as ischemic and dilated cardiomyopathy, VT is the most frequent cause of death...
February 22, 2017: Herz
https://www.readbyqxmd.com/read/28228965/surgical-treatment-of-left-ventricular-wall-rupture-regarded-as-a-consequence-of-takotsubo-cardiomyopathy
#6
Taalaibek Kudaiberdiev, Irina Akhmedova, Gulzada Imanalieva, Ildar Abdildaev, Kilichbek Jooshev, Jamalbek Ashimov, Azamat Mirzabekov, Janibek Gaybildaev
OBJECTIVE: We present the case of possible reverse type of TCM in a female patient presented with progressive left ventricular dysfunction and its rupture in pericardium. METHODS: The detailed history, physical examination, laboratory tests, electrocardiography, serial echocardiography, coronary angiography with left ventriculography were performed to diagnose possible Takotsubo cardiomyopathy in 63-year old woman admitted to our center with complaints of dyspnea, lightheadedness, weakness and signs of hypotension and history of inferior myocardial infarction, acute left ventricular aneurysm, and effusive pericarditis and pleuritis, developed after emotional stress 5 months ago...
2017: SAGE open medical case reports
https://www.readbyqxmd.com/read/28228389/stress-cardiomyopathy-in-a-patient-with-hypertrophic-cardiomyopathy-and-myocardial-bridging
#7
Miguel Benavides, Juan M Vinardell, Ivan Arenas, Orlando Santana
Stress cardiomyopathy is an acquired cardiomyopathy of unknown aetiology. It usually occurs in women over the age of 70 who have experienced physical or emotional stress. It is most commonly characterised by a transient, left ventricular systolic dysfunction in the apical portion and hyperkinesia in the basal segments, without obstructive coronary artery disease. Its association with obstructive hypertrophic cardiomyopathy and myocardial bridging is rare. Herein, we present such a case.
February 21, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28228157/genetics-and-genomics-of-dilated-cardiomyopathy-and-systolic-heart-failure
#8
REVIEW
Upasana Tayal, Sanjay Prasad, Stuart A Cook
Heart failure is a major health burden, affecting 40 million people globally. One of the main causes of systolic heart failure is dilated cardiomyopathy (DCM), the leading global indication for heart transplantation. Our understanding of the genetic basis of both DCM and systolic heart failure has improved in recent years with the application of next-generation sequencing and genome-wide association studies (GWAS). This has enabled rapid sequencing at scale, leading to the discovery of many novel rare variants in DCM and of common variants in both systolic heart failure and DCM...
February 22, 2017: Genome Medicine
https://www.readbyqxmd.com/read/28227076/analysis-of-blood-pressure-signal-in-patients-with-different-ventricular-ejection-fraction-using-linear-and-non-linear-methods
#9
Andres Arcentales, Patricio Rivera, Pere Caminal, Andreas Voss, Antonio Bayes-Genis, Beatriz F Giraldo, Andres Arcentales, Patricio Rivera, Pere Caminal, Andreas Voss, Antonio Bayes-Genis, Beatriz F Giraldo, Pere Caminal, Antonio Bayes-Genis, Andres Arcentales, Patricio Rivera, Beatriz F Giraldo, Andreas Voss
Changes in the left ventricle function produce alternans in the hemodynamic and electric behavior of the cardiovascular system. A total of 49 cardiomyopathy patients have been studied based on the blood pressure signal (BP), and were classified according to the left ventricular ejection fraction (LVEF) in low risk (LR: LVEF>35%, 17 patients) and high risk (HR: LVEF≤35, 32 patients) groups. We propose to characterize these patients using a linear and a nonlinear methods, based on the spectral estimation and the recurrence plot, respectively...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28225973/do-you-know-this-syndrome-leopard-syndrome
#10
Flávio Heleno da Silva Queiroz Cançado, Luis Candido Pinto da Silva, Paulo Franco Taitson, Ana Carolina Dias Viana de Andrade, Matheus Melo Pithon, Dauro Douglas Oliveira
Hypertrophic cardiomyopathy is known as Leopard syndrome, which is a mnemonic rule for multiple lentigines (L), electrocardiographic conduction abnormalities (E), ocular hypertelorism (O), pulmonary stenosis (P), abnormalities of genitalia (A), retardation of growth (R), and deafness (D). We report the case of a 12-year-old patient with some of the abovementioned characteristics: hypertelorism, macroglossia, lentigines, hypospadias, cryptorchidism, subaortic stenosis, growth retardation, and hearing impairment...
January 2017: Anais Brasileiros de Dermatologia
https://www.readbyqxmd.com/read/28225900/chronic-chagas-cardiomyopathy-a-review-of-the-main-pathogenic-mechanisms-and-the-efficacy-of-aetiological-treatment-following-the-benznidazole-evaluation-for-interrupting-trypanosomiasis-benefit-trial
#11
Anis Rassi, José Antonio Marin, Anis Rassi
Chagas cardiomyopathy is the most frequent and most severe manifestation of chronic Chagas disease, and is one of the leading causes of morbidity and death in Latin America. Although the pathogenesis of Chagas cardiomyopathy is incompletely understood, it may involve several mechanisms, including parasite-dependent myocardial damage, immune-mediated myocardial injury (induced by the parasite itself and by self-antigens), and microvascular and neurogenic disturbances. In the past three decades, a consensus has emerged that parasite persistence is crucial to the development and progression of Chagas cardiomyopathy...
March 2017: Memórias do Instituto Oswaldo Cruz
https://www.readbyqxmd.com/read/28225894/chronic-chagas-cardiomyopathy-a-review-of-the-main-pathogenic-mechanisms-and-the-efficacy-of-aetiological-treatment-following-the-benznidazole-evaluation-for-interrupting-trypanosomiasis-benefit-trial
#12
Anis Rassi, José Antonio Marin, Anis Rassi
Chagas cardiomyopathy is the most frequent and most severe manifestation of chronic Chagas disease, and is one of the leading causes of morbidity and death in Latin America. Although the pathogenesis of Chagas cardiomyopathy is incompletely understood, it may involve several mechanisms, including parasite-dependent myocardial damage, immune-mediated myocardial injury (induced by the parasite itself and by self-antigens), and microvascular and neurogenic disturbances. In the past three decades, a consensus has emerged that parasite persistence is crucial to the development and progression of Chagas cardiomyopathy...
February 16, 2017: Memórias do Instituto Oswaldo Cruz
https://www.readbyqxmd.com/read/28225712/left-ventricular-function-and-exercise-performance-in-idiopathic-dilated-cardiomyopathy-role-of-tissue-doppler-imaging
#13
Elena Zambon, Annamaria Iorio, Concetta Di Nora, Cosimo Carriere, Elena Abate, Marco Merlo, Giulia Barbati, Andrea Di Lenarda, Bruno Pinamonti, Piergiuseppe Agostoni, Gianfranco Sinagra
BACKGROUND: To examine the relationship between left ventricular (LV) function evaluated at echocardiography and exercise performance in idiopathic dilated cardiomyopathy (IDCM) patients. METHODS AND RESULTS: We enrolled 76 consecutive IDCM patients in sinus rhythm, undergoing cardiopulmonary exercise testing and echocardiography [49 ± 13 years old; LV ejection fraction 31 ± 7%, LV end-diastolic volume 96 ± 31 ml/m; peak oxygen consumption (peak VO2/kg) 18 ± 5...
April 2017: Journal of Cardiovascular Medicine
https://www.readbyqxmd.com/read/28224436/patients-60-years-of-age-and-older-should-have-the-same-chance-for-heart-transplantation-or-not
#14
Mahmoud H Alshirbini, Fei Xie, Nian-Guo Dong, Si Chen, Eman Borham
Heart transplantation is considered the best treatment modality for advanced heart disease. While old age has conventionally been considered a contraindication for heart transplantation due to the reported adverse effect of advanced age, however donor hearts' shortage continues to stimulate the discussion about the recipient's upper age limit. Our study was based on a retrospective analysis for the results of 52 (18%) patients aged 60 years and older undergoing heart transplantation between May 2008 and December 2015, and these patients were compared with 236 (82%) adult recipients who were younger than 60 years at the time of transplantation and during the same period...
February 2017: Journal of Huazhong University of Science and Technology. Medical Sciences
https://www.readbyqxmd.com/read/28224405/complications-of-acromegaly-cardiovascular-respiratory-and-metabolic-comorbidities
#15
REVIEW
Rosario Pivonello, Renata S Auriemma, Ludovica F S Grasso, Claudia Pivonello, Chiara Simeoli, Roberta Patalano, Mariano Galdiero, Annamaria Colao
Acromegaly is associated with an enhanced mortality, with cardiovascular and respiratory complications representing not only the most frequent comorbidities but also two of the main causes of deaths, whereas a minor role is played by metabolic complications, and particularly diabetes mellitus. The most prevalent cardiovascular complications of acromegaly include a cardiomyopathy, characterized by cardiac hypertrophy and diastolic and systolic dysfunction together with arterial hypertension, cardiac rhythm disorders and valve diseases, as well as vascular endothelial dysfunction...
February 21, 2017: Pituitary
https://www.readbyqxmd.com/read/28224037/tooth-extraction-in-a-patient-after-autologous-skeletal-myoblast-sheet-transplantation-for-severe-dilated-cardiomyopathy
#16
Kohei Okuyama, Yuki Sakamoto, Tomofumi Naruse, Souichi Yanamoto, Masahiro Umeda
The authors describe the first case of tooth extraction in a patient treated with autologous skeletal myocardial sheet transplantation for severe dilated cardiomyopathy. This condition is associated with significant morbidity and mortality that may have identifiable causes or may be idiopathic or inherited. In addition to local disinfection, antimicrobial prophylaxis and continuous anticoagulant therapy during the perioperative period of tooth extraction were needed to prevent infective endocarditis and ensure the success of regenerative therapy of the heart...
March 2017: Annals of Medicine and Surgery
https://www.readbyqxmd.com/read/28223477/znf307-zinc-finger-protein-307-acts-as-a-negative-regulator-of-pressure-overload-induced-cardiac-hypertrophy
#17
Chang-Jiang Yu, Chen Liang, Yu-Xia Li, Qing-Qing Hu, Wei-Wan Zheng, Na Niu, Xu Yang, Zi-Rui Wang, Xiao-Di Yu, Bao-Long Zhang, Bin-Lin Song, Zhi-Ren Zhang
Pathological cardiac hypertrophy is a key risk factor for heart failure. We found that the protein expression levels of the ZNF307 (zinc finger protein 307) were significantly increased in heart samples from both human patients with dilated cardiomyopathy and mice subjected to aortic banding. Therefore, we aimed to elucidate the role of ZNF307 in the development of cardiac hypertrophy and to explore the signal transduction events that mediate the effect of ZNF307 on cardiac hypertrophy, using cardiac-specific ZNF307 transgenic (ZNF307-TG) mice and ZNF307 global knockout (ZNF307-KO) mice...
February 21, 2017: Hypertension
https://www.readbyqxmd.com/read/28223422/a-potential-oligogenic-etiology-of-hypertrophic-cardiomyopathy-a-classic-single-gene-disorder
#18
Lili Li, Matthew N Bainbridge, Yanli Tan, James T Willerson, Ali J Marian
Rationale: Hypertrophic cardiomyopathy (HCM) is a prototypic single gene disease caused mainly by mutations in genes encoding sarcomere proteins. Despite the remarkable advances, the causal genes in about 40% of the HCM cases remain unknown, typically in small families and sporadic cases, wherein co-segregation could not be established. Objective: To test the hypothesis that the "missing causal genes" in HCM is, in part, because of an oligogenic etiology, wherein the pathogenic variants do not co-segregate with the phenotype...
February 21, 2017: Circulation Research
https://www.readbyqxmd.com/read/28223222/disrupting-the-key-circadian-regulator-clock-leads-to-age-dependent-cardiovascular-disease
#19
Faisal J Alibhai, Jonathan LaMarre, Cristine J Reitz, Elena V Tsimakouridze, Jeffrey T Kroetsch, Steffen-Sebastian Bolz, Alex Shulman, Samantha Steinberg, Thomas P Burris, Gavin Y Oudit, Tami A Martino
The circadian mechanism underlies daily rhythms in cardiovascular physiology and rhythm disruption is a major risk factor for heart disease and worse outcomes. However, the role of circadian rhythms is generally clinically unappreciated. Clock is a core component of the circadian mechanism and here we examine the role of Clock as a vital determinant of cardiac physiology and pathophysiology in aging. Clock(Δ19/Δ19) mice develop age-dependent increases in heart weight, hypertrophy, dilation, impaired contractility, and reduced myogenic responsiveness...
February 18, 2017: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/28222247/bile-acids-and-cardiovascular-function-in-cirrhosis
#20
Andrei Voiosu, Signe Wiese, Theodor Voiosu, Flemming Bendtsen, Søren Møller
Cirrhotic cardiomyopathy and the hyperdynamic syndrome are clinically important complications of cirrhosis but their exact pathogenesis is still partly unknown. Experimental models have proven the cardiotoxic effects of bile acidsand recent studies of their varied receptor-mediated functions offer new insight into their involvement in cardiovascular dysfunction in cirrhosis. Bile acid receptors such as farnesoid X-activated receptor and TGR5 are currently under investigation as potential therapeutic targets in a variety of pathological conditions...
February 21, 2017: Liver International: Official Journal of the International Association for the Study of the Liver
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