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Non ischemic cardiomyopathy

Elena V Galitsyna, Margarita A Sazonova, Tatiana P Shkurat, Natalya A Demakova, Alexsandra A Melnichenko, Vasily V Sinyov, Anastasia I Ryzhkova, Konstantin Y Mitrofanov, Andrey V Zhelankin, Igor A Sobenin, Alexander N Orekhov
The present article considers chronic diseases of non-inflammatory genesis, the reasons of which may be mitochondrial dysfunctions. Among them are: coronary heart disease (CHD), hypertension, cardiomyopathy, cerebrovascular accidents and type 2 diabetes mellitus (T2D). Very often, in the long course of the disease, complications may occur, leading to myocardial infarction or ischemic stroke and as a result, death. The main cause of mitochondrial dysfunction are point mitochondrial genome mutations. During the analysis of the literature, data showing the association of the mitochondrial genome mutations with the above diseases were revealed...
October 18, 2016: Current Pharmaceutical Design
Arash Haghikia, Philipp Röntgen, Jens Vogel-Claussen, Johannes Schwab, Ralf Westenfeld, Philipp Ehlermann, Dominik Berliner, Edith Podewski, Denise Hilfiker-Kleiner, Johann Bauersachs
AIMS: Peripartum cardiomyopathy (PPCM) is a major cause of acute heart failure in the peripartum period and considered potentially life threatening. While many aspects of its clinical profiles have been frequently reported, functional analysis, in particular of the right ventricle, and tissue characterization by cardiovascular magnetic resonance (CMR) imaging have been only sporadically described. The aim of the present study was to analyse pathological alterations and their prognostic relevance found in CMR imaging of patients newly diagnosed with PPCM...
December 2015: ESC Heart Failure
Pupalan Iyngkaran, Samia R Toukhsati, Merlin C Thomas, Michael V Jelinek, David L Hare, John D Horowitz
BACKGROUND: Beta-blockers (BBs) are the mainstay prognostic medication for all stages of chronic heart failure (CHF). There are many classes of BBs, each of which has varying levels of evidence to support its efficacy in CHF. However, most CHF patients have one or more comorbid conditions such as diabetes, renal impairment, and/or atrial fibrillation. Patient enrollment to randomized controlled trials (RCTs) often excludes those with certain comorbidities, particularly if the symptoms are severe...
2016: Clinical Medicine Insights. Cardiology
John Rickard, Henry Michtalik, Ritu Sharma, Zackary Berger, Emmanuel Iyoha, Ariel R Green, Nowreen Haq, Karen A Robinson
BACKGROUND: Multiple studies have sought to determine variables associated with improved "response" to cardiac resynchronization therapy(CRT). Such variables, however, are often derived from inadequately controlled, single center cohort studies calling external validity into question. We sought to determine predictors of response to CRT-D and CRT-P utilizing the methods of systematic review. METHODS: We searched MEDLINE, Embase®, and the Cochrane Central Register of Controlled Trials (CENTRAL) from January 1, 1995, as this is the date of first article reporting use of CRT through October 20, 2014...
September 25, 2016: International Journal of Cardiology
Madhab Lamichhane, Joseph C Gardiner, Nicole R Bianco, Steven J Szymkiewicz, Ranjan K Thakur
PURPOSE: The wearable cardioverter defibrillator (WCD) is generally used for short periods of sudden cardiac death (SCD) risk; circumstances may occasionally result in prolonged use (over 1 year). The aim of this study was to determine the benefits and risks of prolonged use in patients with systolic heart failure (HF). METHODS: ZOLL's post-market US database included adult patients (≥18 years) with ischemic and/or non-ischemic cardiomyopathy (ICM, NICM) and at least 1 year of use...
October 17, 2016: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
Massimiliano Faustino, Tullio Agricola, Borejda Xyheri, Enrico Di Girolamo, Luigi Leonzio, Carmine Pizzi
We report a patient with non-ischemic dilated cardiomyopathy and low left ventricular systolic function (28%) presenting with an electrical storm originated in epicardial scar and ablated by radiofrequency. This case report suggests that a strategy of epicardial catheter ablation is reasonable for the patient presenting with electrical storm related to structural disease with a low left ventricular ejection fraction.
September 2016: Indian Heart Journal
Ranjit Kumar Nath, Ajay Raj, C Parvatagouda, Neeraj Pandit
Left ventricular lead placement in the appropriate branch of coronary sinus is the key to successful cardiac resynchronization therapy (CRT) and this step is technically challenging. We describe a case of non-ischemic cardiomyopathy with heart failure, taken up for cardiac resynchronization therapy with defibrillator (CRT-D) implantation. The quadripolar left ventricular lead was impossible to advance into the target lateral branch of the coronary sinus. We made a veno-venous loop, advancing the coronary guidewire through the middle cardiac vein to coronary sinus and then to superior vena cava...
September 2016: Indian Heart Journal
Alberto Francesco Cereda, Patrizia Pedrotti, Lucio De Capitani, Cristina Giannattasio, Alberto Roghi
BACKGROUND: Eosinophilic granulomatosis with polyangiitis (EGPA) is a systemic necrotizing vasculitis characterized by hypereosinophilia. EGPA typically develops in three clinical phases, beginning with asthma, followed by tissue eosinophilia and finally systemic vasculitis. Cardiac involvement is the most important predictor of mortality; it occurs in approximately 15-60% of EGPA patients, a significant proportion of whom are asymptomatic and have normal electrocardiogram (ECG) and echocardiogram...
October 7, 2016: European Journal of Internal Medicine
Gee-Hee Kim, Chul-Min Kim, Bo-Hyun Jang, Hyeong-Han Lee, Solim Hong, Sang-Hoon Eum, Howook Jeon, Donggyu Moon
A 58-year-old man had been diagnosed with non-obstructive hypertrophic cardiomyopathy (HCMP) according to echocardiography findings 16 years ago. Echocardiography showed ischemic cardiomyopathy (CMP)-like features with decreased systolic function but a non-dilated chamber. Coronary angiography was performed but showed a normal coronary artery. Cardiac magnetic resonance imaging (MRI) revealed multifocal transmural and subepicardial delayed-enhancing areas at the anteroseptal, septal, and inferoseptal left ventricular (LV) wall, and wall thinning and decreased motion of the anteroseptal LV wall...
September 2016: Journal of Cardiovascular Ultrasound
Štěpán Havránek, Tomáš Paleček, Petr Kuchynka, Ivana Vítková
Arrhythmogenic left ventricular cardiomyopathy (ALVC) is a rare condition characterised by progressive fibrofatty replacement of the myocardium of the left ventricle in combination with arrhythmias of left ventricular origin. ALVC has been linked to autosomal dominant mutations of genes encoding desmosomal proteins, similarly to the classic arrhythmogenic right ventricular cardiomyopathy with which it also shares pathological and prognostic features. It seems that isolated left or right ventricular abnormalities represent two extremes of the spectrum of clinical manifestations of a single disease: arrhythmogenic cardiomyopathy...
2016: Vnitr̆ní Lékar̆ství
Omar Wever-Pinzon, Stavros G Drakos, Stephen H McKellar, Benjamin D Horne, William T Caine, Abdallah G Kfoury, Dean Y Li, James C Fang, Josef Stehlik, Craig H Selzman
BACKGROUND: The number of centers with left ventricular assist device (LVAD) research programs focused on cardiac recovery is very small. Therefore, this phenomenon has been reported in real-world multi-center registries as a rare event. OBJECTIVES: This study evaluated the incidence of cardiac recovery with an a priori LVAD implantation strategy of bridge-to-recovery (BTR) and constructed a recovery predictive model. METHODS: The study included LVAD recipients registered in the Interagency Registry for Mechanically Assisted Circulatory Support (INTERMACS)...
October 4, 2016: Journal of the American College of Cardiology
Kevin Phan, Joshua M Haswell, Joshua Xu, Yusuf Assem, Stephanie L Mick, Samir R Kapadia, Anson Cheung, Frederick S Ling, Tristan D Yan, Vakhtang Tchantchaleishvili
De novo progressive aortic insufficiency (AI) is a side effect frequently related to prolonged support with continuous-flow left ventricular assist devices (CF-LVAD). Its progression can result in recurrent clinical heart failure symptoms and significantly increased mortality. Recently, percutaneous intervention methods such as transcatheter aortic valve replacement (TAVR) and percutaneous occluder devices have emerged, However, given the very scarce global experience with these approaches, evidence in the literature is lacking...
September 22, 2016: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
Marc-Alexander Ohlow, Marcus Roos, Bernward Lauer, J Christoph Geller
The purpose of this study was to assess (1) the incidence of safety margin testing <10 J (SMT) and (2) the efficacy/safety of routinely adding a subcutaneous array (SQA) (Medtronic 6996SQ) for these patients. Patients with SMT smaller than a 10-J safety margin from maximum output were considered to have very high readings and underwent SQA insertion. These patients were compared with the rest of the patients who had acceptable SMT (≥10 J). A total of 616 patients underwent ICD implantation during the analysis period...
March 2016: Indian Pacing and Electrophysiology Journal
Thomas Hellmut Schindler
With the recent advent of PET/MRI scanners, the combination of molecular imaging with a variety of known and novel PET radiotracers, the high spatial resolution of MRI, and its potential for multi-parametric imaging are anticipated to increase the diagnostic accuracy in cardiovascular disease detection, while providing novel mechanistic insights into the initiation and progression of the disease state. For the time being, cardiac PET/MRI emerges as potential clinical tool in the identification and characterization of infiltrative cardiac diseases, such as sarcoidosis, acute or chronic myocarditis, and cardiac tumors, respectively...
September 22, 2016: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
Simon Greulich, Andrew E Arai, Udo Sechtem, Heiko Mahrholdt
Cardiac magnetic resonance (CMR) is a non-invasive imaging modality that has rapidly emerged during the last few years and has become a valuable, well-established clinical tool. Beside the evaluation of anatomy and function, CMR has its strengths in providing detailed non-invasive myocardial tissue characterization, for which it is considered the current diagnostic gold standard. Late gadolinium enhancement (LGE), with its capability to detect necrosis and to separate ischemic from non-ischemic cardiomyopathies by distinct LGE patterns, offers unique clinical possibilities...
2016: F1000Research
Joachim Seegers, Leonard Bergau, Tobias Tichelbäcker, Marek Malik, Markus Zabel
BACKGROUND AND RATIONALE: In patients with ischemic or non-ischemic cardiomyopathy and impaired left ventricular ejection fraction, treatment with implantable cardioverter-defibrillator (ICD) has been shown to improve survival and guidelines recommend their use for primary prevention of sudden cardiac death. Experts disagree regarding the validity of decade-old trial results as the basis for this recommendation, therefore, reconsideration of prophylactic ICD treatment is needed. EU-CERT-ICD, DANISH-ICD AND DO-IT: In order to update the evidence on prophylactic ICD treatment, several prospective studies are underway in Europe...
August 26, 2016: Journal of Electrocardiology
Diogo T Galan, Virginie Bito, Piet Claus, Patricia Holemans, Joëlle Abi-Char, Chandan Kadur Nagaraju, Eef Dries, Kristel Vermeulen, Renee Ventura-Clapier, Karin R Sipido, Ronald B Driesen
Scarring and remodeling of the left ventricle (LV) after myocardial infarction (MI) results in ischemic cardiomyopathy with reduced contractile function. Regional differences related to persisting ischemia may exist. We investigated the hypothesis that mitochondrial function and structure is altered in the myocardium adjacent to MI with reduced perfusion (MIadjacent) and less so in the remote, non-ischemic myocardium (MIremote). We used a pig model of chronic coronary stenosis and MI (N=13). Functional and perfusion MR imaging 6 weeks after intervention showed reduced ejection fraction and increased global wall stress compared to sham-operated animals (SHAM; N=14)...
September 9, 2016: American Journal of Physiology. Heart and Circulatory Physiology
Ana Goico, Mercy Chandrasekaran, Cesar J Herrera
Stress cardiomyopathy (SC) is characterized by transient left ventricular (LV) wall motion abnormalities typically involving the apex with preserved basal contractility, chest discomfort, ST-T ischemic changes and elevated cardiac markers with normal or non-flow limiting coronary artery lesions. It represents an important differential diagnosis of Acute Coronary Syndromes caused by atherosclerotic vessel occlusion; most commonly, Tako-tsubo occurs in postmenopausal women after physical or emotional stress. While the exact mechanism of SC remains controversial, various hypotheses have been suggested concerning the vascular, central nervous and endocrine system participation where catecholamines, particularly epinephrine, seem to play a major role...
November 15, 2016: International Journal of Cardiology
Myrianthi Hadjicharalambous, Liya Asner, Radomir Chabiniok, Eva Sammut, James Wong, Devis Peressutti, Eric Kerfoot, Andrew King, Jack Lee, Reza Razavi, Nicolas Smith, Gerald Carr-White, David Nordsletten
Patient-specific modelling has emerged as a tool for studying heart function, demonstrating the potential to provide non-invasive estimates of tissue passive stiffness. However, reliable use of model-derived stiffness requires sufficient model accuracy and unique estimation of model parameters. In this paper we present personalised models of cardiac mechanics, focusing on improving model accuracy, while ensuring unique parametrisation. The influence of principal model uncertainties on accuracy and parameter identifiability was systematically assessed in a group of patients with dilated cardiomyopathy ([Formula: see text]) and healthy volunteers ([Formula: see text])...
September 7, 2016: Annals of Biomedical Engineering
Deepakraj Gajanana, Mahek Shah, Parichart Junpapart, Abel Romero-Corral, Vincent M Figueredo, Behnam Bozorgnia
No abstract text is available yet for this article.
August 23, 2016: International Journal of Cardiology
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