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Post infarction heart failure

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https://www.readbyqxmd.com/read/28929382/serial-assessment-of-left-ventricular-morphology-and-function-in-a-rodent-model-of-ischemic-cardiomyopathy
#1
Vesselina Ferferieva, Nicholas D'Elia, Brecht Heyde, Petr Otahal, Frank Rademakers, Jan D'hooge
Left ventricular remodelling (LVr) occurs post myocardial infarction (MI), predisposing people to heart failure (HF). LV mechanics and morphology are important in this process. We hence sort to characterize LV mechanics and geometry in a post-MI rodent model. Thirty-two male Sprague-Dawley rats (150-200 g) sustained MI (n = 24) or sham (Sham; n = 8) surgery. In another six sham rats invasive blood pressure measurements were performed. Ultrasound imaging was done at baseline, and 1, 3, 7, 14, 30 and 60 days following surgery, and LV mechanics and morphology assessed...
September 19, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28916405/love-death-a-retrospective-and-prospective-follow-up-mortality-study-over-45-years
#2
Lena Lange, Barbra Zedler, Marcel A Verhoff, Markus Parzeller
BACKGROUND: Although sexual activity can cause moderate stress, it can cause natural death in individuals with pre-existing illness. The aim of this study was to identify additional pre-existing health problems, sexual practices, and potential circumstances that may trigger fatal events. METHODS: This medicolegal postmortem, retrospective, and prospective study is based on data of autopsies performed at the Institute of Legal Medicine of the University hospital, Goethe-University, Frankfurt/Main, Germany...
September 12, 2017: Journal of Sexual Medicine
https://www.readbyqxmd.com/read/28912121/cortical-bone-stem-cell-therapy-preserves-cardiac-structure-and-function-after-myocardial-infarction
#3
Thomas E Sharp, Giana J Schena, Alexander R Hoachlandr-Hobby, Timothy Starosta, Remus M Berretta, Markus Wallner, Giulia Borghetti, Polina Gross, Daohai Yu, Jaslyn Johnson, Eric A Feldsott, Danielle M Trappanese, Amir Toib, Joseph E Rabinowitz, Jon C George, Hajime Kubo, Sadia Mohsin, Steven R Houser
Rationale: Cortical bone stem cells (CBSCs) have been shown to reduce ventricular remodeling and improve cardiac function in a murine myocardial infarction (MI) model. These effects were superior to other stem cell types that have been used in recent early stage clinical trials. However, CBSC efficacy has not been tested in a preclinical large animal model using approaches that could be applied to patients. Objective: To determine if post-MI transendocardial injection of allogeneic CBSCs reduces pathological structural and functional remodeling and prevents the development of heart failure in a swine MI model...
September 14, 2017: Circulation Research
https://www.readbyqxmd.com/read/28895425/predictors-of-subsequent-myocardial-infarction-stroke-and-death-in-stable-post-myocardial-infarction-patients-a-nationwide-cohort-study
#4
Dong-Yi Chen, Chen-Yu Li, Ming-Jer Hsieh, Chun-Chi Chen, I-Chang Hsieh, Tien-Hsing Chen, Shao-Wei Chen, Chao-Yung Wang, Shang-Hung Chang, Cheng-Hung Lee, Ming-Lung Tsai, Ming-Yun Ho, Jih-Kai Yeh, Chee-Jen Chang, Ming-Shien Wen
BACKGROUND: This study investigated the predictors of subsequent cardiovascular events in stable post-myocardial infarction patients in Taiwan. METHODS: A total of 11,183 patients were recruited who had survived one year post-myocardial infarction without subsequent events of recurrent myocardial infarction or stroke from the Taiwan National Health Insurance Research Database. Their composite cardiovascular event rates were identified. RESULTS: The composite cardiovascular events rate in three year follow-up in the post-myocardial infarction population was 13...
September 1, 2017: European Heart Journal. Acute Cardiovascular Care
https://www.readbyqxmd.com/read/28886530/a-novel-ventricular-restraint-device-asd-repetitively-deliver-salvia-miltiorrhiza-to-epicardium-have-good-curative-effects-in-heart-failure-management
#5
Muhammad Naveed, Li Wenhua, Wang Gang, Imran Shair Mohammad, Muhammad Abbas, Xiaoqian Liao, Mengqi Yang, Li Zhang, Xiaolin Liu, Xiaoming Qi, Yineng Chen, Lv Jiadi, Linlan Ye, Wang Zhijie, Chen Ding Ding, Yu Feng, Zhou Xiaohui
A novel ventricular restraint is the non-transplant surgical option for the management of an end-stage dilated heart failure (HF). To expand the therapeutic techniques we design a novel ventricular restraint device (ASD) which has the ability to deliver a therapeutic drug directly to the heart. We deliver a Traditional Chinese Medicine (TCM) Salvia miltiorrhiza (Danshen Zhusheye) through active hydraulic ventricular support drug delivery system (ASD) and we hypothesize that it will show better results in HF management than the restraint device and drug alone...
September 5, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28885986/estimation-of-baroreflex-sensitivity-by-the-bivariate-phase-rectified-signal-averaging-method-a-comparison-with-the-phenylephrine-method
#6
Roberto Maestri, Maria Teresa La Rovere, Grzegorz Raczak, Ludmiła Danilowicz-Szymanowicz, Gian Domenico Pinna
Background A novel technique to assess spontaneous baroreflex sensitivity (BRS) by bivariate phase-rectified signal averaging (PRSA-BRS) has been recently proposed and its independent prognostic power demonstrated. This method, however, has never been compared with the Phenyleprine test (Phe-BRS), commonly regarded as the reference method in clinical and research applications. Methods In 192 heart failure (HF) and 41 post-myocardial infarction (post-MI) patients we compared PRSA-BRS with Phe-BRS, assessing both association and agreement...
September 8, 2017: Physiological Measurement
https://www.readbyqxmd.com/read/28874462/%C3%AE-arrestin2-improves-post-myocardial-infarction-heart-failure-via-sarco-endo-plasmic-reticulum-ca-2-atpase-dependent-positive-inotropy-in-cardiomyocytes
#7
Katie A McCrink, Jennifer Maning, Angela Vu, Malika Jafferjee, Christine Marrero, Ava Brill, Ashley Bathgate-Siryk, Samalia Dabul, Walter J Koch, Anastasios Lymperopoulos
Heart failure is the leading cause of death in the Western world, and new and innovative treatments are needed. The GPCR (G protein-coupled receptor) adapter proteins βarr (β-arrestin)-1 and βarr-2 are functionally distinct in the heart. βarr1 is cardiotoxic, decreasing contractility by opposing β1AR (adrenergic receptor) signaling and promoting apoptosis/inflammation post-myocardial infarction (MI). Conversely, βarr2 inhibits apoptosis/inflammation post-MI but its effects on cardiac function are not well understood...
September 5, 2017: Hypertension
https://www.readbyqxmd.com/read/28870731/chronic-neuregulin-1%C3%AE-treatment-mitigates-the-progression-of-post-myocardial-infarction-heart-failure-in-the-setting-of-type-1-diabetes-mellitus-by-suppressing-myocardial-apoptosis-fibrosis-and-key-oxidant-producing-enzymes
#8
Manisha Gupte, Hind Lal, Firdos Ahmad, Douglas B Sawyer, Michael F Hill
BACKGROUND: Type 1 diabetes mellitus (DM) patients surviving myocardial infarction (MI) have substantially higher cardiovascular morbidity and mortality compared to their non-diabetic counterparts owing to the more frequent development of subsequent heart failure (HF). Neuregulin (NRG)-1β is released from cardiac microvascular endothelial cells and acts as a paracrine factor via the ErbB family of tyrosine kinase receptors expressed in cardiac myocytes to regulate cardiac development and stress responses...
September 1, 2017: Journal of Cardiac Failure
https://www.readbyqxmd.com/read/28865897/bare-metal-versus-drug-eluting-stents-for-st-segment-elevation-myocardial-infarction-in-the-total-trial
#9
Shahar Lavi, Javaid Iqbal, John A Cairns, Warren J Cantor, Asim N Cheema, Raul Moreno, Brandi Meeks, Robert C Welsh, Sasko Kedev, Saqib Chowdhary, Goran Stankovic, J D Schwalm, Yan Liu, Sanjit S Jolly, Vladimír Džavík
BACKGROUND: The safety and efficacy of drug eluting stents (DES) in the setting of ST elevation myocardial infarction (STEMI) is not well established. METHODS: In the TOTAL trial, patients presenting with STEMI were randomized to routine thrombectomy versus PCI alone. In this post-hoc analysis, propensity matching was used to assess relative safety and efficacy according to type of stent used. RESULTS: Each propensity-matched cohort included 2313 patients...
June 29, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28864889/methylglyoxal-derived-advanced-glycation-end-products-contribute-to-negative-cardiac-remodeling-and-dysfunction-post-myocardial-infarction
#10
Nick J R Blackburn, Branka Vulesevic, Brian McNeill, Cagla Eren Cimenci, Ali Ahmadi, Mayte Gonzalez-Gomez, Aleksandra Ostojic, Zhiyuan Zhong, Michael Brownlee, Paul J Beisswenger, Ross W Milne, Erik J Suuronen
Advanced glycation end-products (AGEs) have been associated with poorer outcomes after myocardial infarction (MI), and linked with heart failure. Methylglyoxal (MG) is considered the most important AGE precursor, but its role in MI is unknown. In this study, we investigated the involvement of MG-derived AGEs (MG-AGEs) in MI using transgenic mice that over-express the MG-metabolizing enzyme glyoxalase-1 (GLO1). MI was induced in GLO1 mice and wild-type (WT) littermates. At 6 h post-MI, mass spectrometry revealed that MG-H1 (a principal MG-AGE) was increased in the hearts of WT mice, and immunohistochemistry demonstrated that this persisted for 4 weeks...
September 1, 2017: Basic Research in Cardiology
https://www.readbyqxmd.com/read/28861002/analysis-of-24-h-rhythm-in-ventricular-repolarization-identifies-qt-diurnality-as-a-novel-clinical-parameter-associated-with-previous-ventricular-arrhythmias-in-heart-failure-patients
#11
Bastiaan C Du Pre, Linda W Van Laake, Matthias Meine, Jeroen F Van der Heijden, Pieter A Doevendans, Marc A Vos, Toon A B Van Veen
Introduction: Cardiac repolarization abnormalities are among the major causes of ventricular arrhythmias and sudden cardiac death. In humans, cardiac repolarization duration has a 24-h rhythm. Animal studies show that this rhythm is regulated by 24-h rhythms in ion channel function and that disruption of this rhythm leads to ventricular arrhythmias. We hypothesized that 24-h rhythms in QT duration can be used as a predictor for sudden cardiac death and are associated with ventricular arrhythmias. Secondly, we assessed a possible mechanistic explanation by studying the putative role of hERG channel dysfunction...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28859786/effect-of-losartan-on-mitral-valve-changes-after-myocardial-infarction
#12
Philipp E Bartko, Jacob P Dal-Bianco, J Luis Guerrero, Jonathan Beaudoin, Catherine Szymanski, Dae-Hee Kim, Margo M Seybolt, Mark D Handschumacher, Suzanne Sullivan, Michael L Garcia, James S Titus, Jill Wylie-Sears, Whitney S Irvin, Emmanuel Messas, Albert A Hagège, Alain Carpentier, Elena Aikawa, Joyce Bischoff, Robert A Levine
BACKGROUND: After myocardial infarction (MI), mitral valve (MV) tethering stimulates adaptive leaflet growth, but counterproductive leaflet thickening and fibrosis augment mitral regurgitation (MR), doubling heart failure and mortality. MV fibrosis post-MI is associated with excessive endothelial-to-mesenchymal transition (EMT), driven by transforming growth factor (TGF)-β overexpression. In vitro, losartan-mediated TGF-β inhibition reduces EMT of MV endothelial cells. OBJECTIVES: This study tested the hypothesis that profibrotic MV changes post-MI are therapeutically accessible, specifically by losartan-mediated TGF-β inhibition...
September 5, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28855632/resolution-agonist-15-epi-lipoxin-a4-programs-early-activation-of-resolving-phase-in-post-myocardial-infarction-healing
#13
Vasundhara Kain, Fei Liu, Veronika Kozlovskaya, Kevin A Ingle, Subhashini Bolisetty, Anupam Agarwal, Santosh Khedkar, Sumanth D Prabhu, Eugenia Kharlampieva, Ganesh V Halade
Following myocardial infarction (MI), overactive inflammation remodels the left ventricle (LV) leading to heart failure coinciding with reduced levels of 15-epi-Lipoxin A4 (15-epi LXA4). However, the role of 15-epi LXA4 in post-MI acute inflammatory response and resolving phase is unclear. We hypothesize that liposomal fusion of 15-epi-LXA4 (Lipo-15-epi-LXA4) or free 15-epi-LXA4 will expedite the resolving phase in post-MI inflammation. 8 to 12-week-old male C57BL/6 mice were subjected to permanent coronary artery ligation...
August 30, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28852839/effect-of-eplerenone-on-extracellular-cardiac-matrix-biomarkers-in-patients-with-acute-st-elevation-myocardial-infarction-without-heart-failure-insights-from-the-randomized-double-blind-reminder-study
#14
João Pedro Ferreira, Kévin Duarte, Gilles Montalescot, Bertram Pitt, Esteban Lopez de Sa, Christian W Hamm, Marcus Flather, Freek Verheugt, Harry Shi, Eva Turgonyi, Miguel Orri, Patrick Rossignol, John Vincent, Faiez Zannad
OBJECTIVE: Aldosterone stimulates cardiac collagen synthesis. Circulating biomarkers of collagen turnover provide a useful tool for the assessment of cardiac remodeling in patients with an acute myocardial infarction (MI). METHODS: The REMINDER trial assessed the effect of eplerenone in patients with an acute ST-elevation Myocardial Infarction (STEMI) without known heart failure (HF), when initiated within 24 h of symptom onset. The primary outcome was almost totally (>90%) driven by natriuretic peptide (NP) thresholds after 1-month post-MI (it also included a composite of cardiovascular death or re-hospitalization or new onset HF or sustained ventricular tachycardia or fibrillation or LVEF ≤40% after 1-month post-MI)...
August 29, 2017: Clinical Research in Cardiology: Official Journal of the German Cardiac Society
https://www.readbyqxmd.com/read/28846805/an-exploration-of-the-association-between-ischemic-etiology-and-the-likelihood-of-heart-failure-hospitalization-following-cardiac-resynchronization-therapy
#15
Adam C Powell, Teresa L Rogstad, Uday U Deshmukh, Stephen E Price, Jeffrey D Simmons
BACKGROUND: Myocardial scarring resulting from cardiomyopathy with ischemic etiology may interfere with effective lead placement during implantation of multi-lead cardioverter-defibrillators for cardiac resynchronization therapy (CRT-D). Extensive scarring is known to be associated with poorer physiological and survival outcomes in patients who undergo CRT-D. HYPOTHESIS: Ischemic CRT-D recipients respond as well as nonischemic recipients, using hospital admission for heart failure (HF) as a measure of response...
August 28, 2017: Clinical Cardiology
https://www.readbyqxmd.com/read/28842165/chronic-kidney-disease-basal-insulin-glargine-and-health-outcomes-in-people-with-dysglycemia-the-origin-study
#16
Vasilios Papademetriou, Eric S Nylen, Michael Doumas, Jeff Probstfield, Johannes F E Mann, Richard E Gilbert, Hertzel C Gerstein
BACKGROUND: Early stages of chronic kidney disease are associated with an increased cardiovascular risk in patients with established type 2 diabetes and macrovascular disease. The role of early stages of chronic kidney disease on macrovascular outcomes in prediabetes and early type two diabetes mellitus is not known. In the Outcome Reduction with an Initial Glargine Intervention (ORIGIN) trial, the introduction of insulin had no effect on cardiovascular outcomes compared to standard therapy...
August 22, 2017: American Journal of Medicine
https://www.readbyqxmd.com/read/28838960/regional-dysfunction-after-myocardial-infarction-in-rats
#17
COMPARATIVE STUDY
Emil K S Espe, Jan Magnus Aronsen, Morten Eriksen, Ole M Sejersted, Lili Zhang, Ivar Sjaastad
BACKGROUND: Detailed understanding of regional function after myocardial infarction (MI) is currently incomplete. We aimed at investigating regional myocardial strain and work in post-MI rats with and without heart failure. METHODS AND RESULTS: Six weeks after induction of MI, 62 male Wistar-Hannover rats with a range of infarct sizes, plus 14 sham-operated rats, were examined by cine and phase-contrast magnetic resonance imaging. After magnetic resonance imaging, the rats were catheterized, and left ventricular pressures were recorded...
September 2017: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28838093/sex-differences-in-post-traumatic-stress-disorder-in-cardiovascular-patients-after-the-great-east-japan-earthquake-a-report-from-the-chart-2-study
#18
Takeo Onose, Yasuhiko Sakata, Kotaro Nochioka, Masanobu Miura, Takeshi Yamauchi, Kanako Tsuji, Ruri Abe, Takuya Oikawa, Shintaro Kasahara, Masayuki Sato, Takashi Shiroto, Satoshi Miyata, Jun Takahashi, Hiroaki Shimokawa
Aims: The temporal changes and sex differences in post-traumatic stress disorder (PTSD) after natural disasters remain unclear. Therefore, we examined the prevalence, prognostic impacts, and determinant factors of PTSD after the Great East Japan Earthquake (GEJE) of 11 March 2011 in cardiovascular (CV) patients registered in the Chronic Heart Failure Analysis and Registry in the Tohoku District (CHART)-2 Study (n = 10 219), with a special reference to sex. Methods and results: By self-completion questionnaires of the Japanese-language version of the Impact of Event Scale-Revised (IES-R-J), the prevalence of PTSD, defined as IES-R-J score ≥25, was 14...
July 1, 2017: European Heart Journal. Quality of Care & Clinical Outcomes
https://www.readbyqxmd.com/read/28837689/type-2-diabetes-and-in-hospital-complications-after-revision-of-total-hip-and-knee-arthroplasty
#19
Ana López-de-Andrés, Valentín Hernández-Barrera, Maria A Martínez-Huedo, Manuel Villanueva-Martinez, Isabel Jiménez-Trujillo, Rodrigo Jiménez-García
PURPOSE: To assess the effect of type 2 diabetes (T2DM) on hospital outcomes such as in hospital postoperative complications (IHPC), length of hospital stay (LOHS) and in-hospital mortality (IHM) after the revision of total hip arthroplasty (RHA) and total knee arthroplasty (RKA) and to identify factors associated with IHPC among T2DM patients undergoing these procedures. METHODS: We performed a retrospective study using the Spanish National Hospital Discharge Database, 2005-2014...
2017: PloS One
https://www.readbyqxmd.com/read/28828881/correlates-and-prognostic-impact-of-new-onset-heart-failure-after-st-segment-elevation-myocardial-infarction-treated-with-primary-percutaneous-coronary-intervention-insights-from-the-infuse-ami-trial
#20
Gennaro Giustino, Björn Redfors, Sorin J Brener, Ajay J Kirtane, Philippe Généreux, Akiko Maehara, Dariusz Dudek, Thomas Neunteufl, D Christopher Metzger, Aaron Crowley, Roxana Mehran, C Michael Gibson, Gregg W Stone
BACKGROUND: The determinants and significance of early (30-day) heart failure symptoms after primary percutaneous coronary intervention for ST-segment elevation myocardial infarction (STEMI) remain unclear. We investigated the clinical and imaging correlates of early post-discharge heart failure in patients with STEMI, and evaluated its impact on clinical outcomes. METHODS: Patients from the INFUSE-AMI trial were categorized according to New York Heart Association (NYHA) functional classification at their 30-day visit (NYHA class ≥2 versus 1)...
August 1, 2017: European Heart Journal. Acute Cardiovascular Care
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