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https://www.readbyqxmd.com/read/28339742/topiramate-modulates-post-infarction-inflammation-primarily-by-targeting-monocytes-or-macrophages
#1
Zhaohui Wang, Shiyuan Huang, Yuling Sheng, Xu Peng, Hui Liu, Nan Jin, Jun Cai, Yanwen Shu, Ting Li, Ping Li, Cheng Fan, Xiaofan Hu, Wenyong Zhang, Rui Long, Ya You, Caihong Huang, Yi Song, Chunhua Xiang, Jue Wang, Yong Yang, Kun Liu
Aims: Monocytes/macrophages response plays a key role in post-infarction inflammation that contributes greatly to post-infarction ventricular remodeling and cardiac rupture. Therapeutic targeting of the GABAA receptor, which is enriched in monocytes/macrophages but not expressed in the myocardium, may be possible after myocardial infarction. Methods and results: After MI was induced by ligation of the coronary artery, C57BL/6 mice were intraperitoneally administered with one specific agonist or antagonist of the GABAA receptor (topiramate or bicuculline), in the setting of presence or depletion of monocytes/macrophages...
February 17, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28339702/subclinical-chronic-left-ventricular-systolic-dysfunction-resulting-from-phosphine-poisoning
#2
E Szymczyk, M Wiszniewska, J Walusiak-Skorupa, J D Kasprzak, P Lipiec
We present a case of a 32-year-old male crew member of a cargo ship, accidentally exposed to phosphine, a fumigating substance. He and other crew members developed increasing fatigue and digestive disorders 24 h later; two died from acute pulmonary oedema. The patient was admitted to hospital, where bilateral pneumonia, acute nephritis, hepatopathy, electrolyte imbalance and leucopenia were diagnosed. He was discharged from hospital 3 weeks later. He was examined 4 months later for possible chronic consequences of acute phosphine poisoning, which included echocardiography showing normal heart size and cardiac function...
February 21, 2017: Occupational Medicine
https://www.readbyqxmd.com/read/28339476/transgenic-mice-overexpressing-desmocollin-2-dsc2-develop-cardiomyopathy-associated-with-myocardial-inflammation-and-fibrotic-remodeling
#3
Andreas Brodehl, Darrell D Belke, Lauren Garnett, Kristina Martens, Nelly Abdelfatah, Marcela Rodriguez, Catherine Diao, Yong-Xiang Chen, Paul M K Gordon, Anders Nygren, Brenda Gerull
BACKGROUND: Arrhythmogenic cardiomyopathy is an inherited heart muscle disorder leading to ventricular arrhythmias and heart failure, mainly as a result of mutations in cardiac desmosomal genes. Desmosomes are cell-cell junctions mediating adhesion of cardiomyocytes; however, the molecular and cellular mechanisms underlying the disease remain widely unknown. Desmocollin-2 is a desmosomal cadherin serving as an anchor molecule required to reconstitute homeostatic intercellular adhesion with desmoglein-2...
2017: PloS One
https://www.readbyqxmd.com/read/28338377/sodium-potassium-adenosine-triphosphatase-na-k-atpase-as-a-therapeutic-target-for-uremic-cardiomyopathy
#4
Xiaoliang Wang, Jiang Liu, Christopher A Drummond, Joseph Shapiro
Clinically, patients with significant reductions in renal function present with cardiovascular dysfunction typically termed, uremic cardiomyopathy. It is a progressive series of cardiac pathophysiological changes, including left ventricular diastolic dysfunction and hypertrophy (LVH) which sometimes progress to left ventricular dilation (LVD) and systolic dysfunction in the setting of chronic kidney disease (CKD). Uremic cardiomyopathy is almost ubiquitous in patients afflicted with end stage renal disease (ESRD)...
March 24, 2017: Expert Opinion on Therapeutic Targets
https://www.readbyqxmd.com/read/28337558/improving-on-the-diagnostic-characteristics-of-echocardiography-for-pulmonary-hypertension
#5
Kathleen Broderick-Forsgren, Clemontina A Davenport, Joseph A Sivak, Charles William Hargett, Michael C Foster, Andrew Monteagudo, Alicia Armour, Sudarshan Rajagopal, Kristine Arges, Eric J Velazquez, Zainab Samad
This retrospective study evaluated the diagnostic characteristics of a combination of echocardiographic parameters for pulmonary hypertension (PH). Right ventricular systolic pressure (RVSP) estimation by echocardiography (echo) is used to screen for PH. However, the sensitivity of this method is suboptimal. We hypothesized that RVSP estimation in conjunction with other echo parameters would improve the value of echo for PH. The Duke Echo database was queried for adult patients with known or suspected PH who had undergone both echo and right heart catheterization (RHC) within a 24 h period between 1/1/2008 and 12/31/2013...
March 24, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28337429/investigating-cardiac-motion-patterns-using-synthetic-high-resolution-3d-cardiovascular-magnetic-resonance-images-and-statistical-shape-analysis
#6
Benedetta Biffi, Jan L Bruse, Maria A Zuluaga, Hopewell N Ntsinjana, Andrew M Taylor, Silvia Schievano
Diagnosis of ventricular dysfunction in congenital heart disease is more and more based on medical imaging, which allows investigation of abnormal cardiac morphology and correlated abnormal function. Although analysis of 2D images represents the clinical standard, novel tools performing automatic processing of 3D images are becoming available, providing more detailed and comprehensive information than simple 2D morphometry. Among these, statistical shape analysis (SSA) allows a consistent and quantitative description of a population of complex shapes, as a way to detect novel biomarkers, ultimately improving diagnosis and pathology understanding...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28336204/n-terminal-pro-brain-natriuretic-peptide-is-related-with-coronary-flow-velocity-reserve-and-diastolic-dysfunction-in-patients-with-asymmetric-hypertrophic-cardiomyopathy
#7
Milorad Tesic, Jelena Seferovic, Danijela Trifunovic, Ana Djordjevic-Dikic, Vojislav Giga, Ivana Jovanovic, Olga Petrovic, Jelena Marinkovic, Sanja Stankovic, Jelena Stepanovic, Arsen Ristic, Milan Petrovic, Nebojsa Mujovic, Bosiljka Vujisic-Tesic, Branko Beleslin, Vladan Vukcevic, Goran Stankovic, Petar Seferovic
BACKGROUND: The relations of elevated N-terminal pro-brain natriuretic peptide (NT-pro-BNP) and cardiac ischemia in hypertrophic cardiomyopathy (HCM) patients is uncertain. Therefore we designed the study with the following aims: (1) to analyze plasma concentrations of NT-pro-BNP in various subsets of HCM patients; (2) to reveal the correlations of NT-pro-BNP, myocardial ischemia, and diastolic dysfunction; (3) to assess predictors of the elevated plasma levels of NT-pro-BNP. METHODS AND RESULTS: In 61 patients (mean age 48...
March 20, 2017: Journal of Cardiology
https://www.readbyqxmd.com/read/28336184/atrial-fibrillation-management-in-a-breeding-stallion
#8
N Heliczer, K Mitchell, O Lorello, J Dauvillier, D Burger, C C Schwarzwald, C Navas de Solis
A 20-year-old warmblood breeding stallion presented to a University practice for semen collection and evaluation was incidentally diagnosed with atrial fibrillation (AF). Electrocardiogram recordings during breeding revealed inappropriately rapid tachycardia and occasional ventricular premature depolarizations/aberrant ventricular conduction. Transvenous electrical cardioversion was performed. After successful cardioversion the horse displayed supraventricular ectopy and atrial contractile dysfunction and was administered sotalol hydrochloride in an attempt to decrease the risk of AF recurrence...
March 20, 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/28335887/trastuzumab-in-combination-with-weekly-paclitaxel-and-carboplatin-as-neo-adjuvant-treatment-for-her2-positive-breast-cancer-the-train-study
#9
Mette S van Ramshorst, Erik van Werkhoven, Ingrid A M Mandjes, Margaret Schot, Jelle Wesseling, Marie-Jeanne T F D Vrancken Peeters, Jetske M Meerum Terwogt, Monique E M Bos, Hendrika M Oosterkamp, Sjoerd Rodenhuis, Sabine C Linn, Gabe S Sonke
AIM: To determine the efficacy and safety of an anthracycline-free neo-adjuvant regimen consisting of weekly paclitaxel, carboplatin and trastuzumab in HER2-positive breast cancer. PATIENTS AND METHODS: Patients with stage II or III HER2-positive breast cancer received weekly paclitaxel ([P], 70 mg/m(2)), trastuzumab ([T], 2 mg/kg, loading dose 4 mg/kg) and carboplatin ([C], AUC = 3 mg ml(-1) min) for 24 weeks. In weeks 7, 8, 15, 16, 23 and 24, trastuzumab was administered without chemotherapy...
March 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/28335835/impact-of-thrombolytic-therapy-on%C3%A2-the%C3%A2-long-term-outcome-of-intermediate-risk-pulmonary%C3%A2-embolism
#10
Stavros V Konstantinides, Eric Vicaut, Thierry Danays, Cecilia Becattini, Laurent Bertoletti, Jan Beyer-Westendorf, Helene Bouvaist, Francis Couturaud, Claudia Dellas, Daniel Duerschmied, Klaus Empen, Emile Ferrari, Nazzareno Galiè, David Jiménez, Maciej Kostrubiec, Matija Kozak, Christian Kupatt, Irene M Lang, Mareike Lankeit, Nicolas Meneveau, Massimiliano Palazzini, Piotr Pruszczyk, Matteo Rugolotto, Aldo Salvi, Olivier Sanchez, Sebastian Schellong, Bozena Sobkowicz, Guy Meyer
BACKGROUND: The long-term effect of thrombolytic treatment of pulmonary embolism (PE) is unknown. OBJECTIVES: This study investigated the long-term prognosis of patients with intermediate-risk PE and the effect of thrombolytic treatment on the persistence of symptoms or the development of late complications. METHODS: The PEITHO (Pulmonary Embolism Thrombolysis) trial was a randomized (1:1) comparison of thrombolysis with tenecteplase versus placebo in normotensive patients with acute PE, right ventricular (RV) dysfunction on imaging, and a positive cardiac troponin test result...
March 28, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28334029/prognostic-power-of-global-2d-strain-according-to-left-ventricular-ejection-fraction-in-patients-with-st-elevation-myocardial-infarction
#11
Myung-Jin Cha, Hyun-Sook Kim, Seong Hwan Kim, Jae-Hyeong Park, Goo-Yeong Cho
BACKGROUNDS: We aimed to evaluate the predictive power of longitudinal and circumferential fibers according to left ventricular ejection fraction (LVEF) in successfully reperfused acute ST elevation myocardial infarction (STEMI) patients. METHODS: Total 691 patients (age 59±13, 20% female) underwent clinical evaluation and conventional and strain echocardiography (Global longitudinal strain (GLS), global circumferential strain (GCS)). The clinical outcome was defined as the composite of death, hospitalization for heart failure, non-fatal myocardial infarction, and ventricular arrhythmia...
2017: PloS One
https://www.readbyqxmd.com/read/28333148/salusin-%C3%AE-contributes-to-oxidative-stress-and-inflammation-in-diabetic-cardiomyopathy
#12
Ming-Xia Zhao, Bing Zhou, Li Ling, Xiao-Qing Xiong, Feng Zhang, Qi Chen, Yue-Hua Li, Yu-Ming Kang, Guo-Qing Zhu
Salusin-β accelerates inflammatory responses in vascular endothelial cells, and increases oxidative stress in vascular smooth muscle cells. Plasma salusin-β levels were increased in diabetic patients. This study was designed to determine whether salusin-β is involved in the pathogenesis of diabetic cardiomyopathy (DCM), and whether knockdown of salusin-β attenuates cardiac inflammation and oxidative stress in rats with DCM. H9c2 or neonatal rat cardiomyocytes were incubated with 33.3 mM of glucose to mimic the high glucose (HG) in diabetes...
March 23, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28332221/right-ventricular-free-wall-longitudinal-speckle-tracking-strain-in-patients-with-pulmonary-arterial-hypertension-under-specific-treatment
#13
Hatice S Kemal, Meral Kayikcioglu, Hakan Kultursay, Ozcan Vuran, Sanem Nalbantgil, Nesrin Mogulkoc, Levent Can
BACKGROUND: Right ventricular (RV) dysfunction is a major determinant of outcomes in patients with pulmonary arterial hypertension (PAH), although the optimal measure of RV function is poorly defined. We evaluated the utility of RV free-wall speckle tracking strain as an assessment tool for RV function in patients with PAH who are already under specific treatment compared with conventional echocardiographic parameters and investigated the relationship of RV free-wall strain with clinical hemodynamic parameters of RV performance...
March 23, 2017: Echocardiography
https://www.readbyqxmd.com/read/28332215/effects-of-increased-left-ventricular-wall-thickness-on-the-myocardium-in-severe-aortic-stenosis-with-normal-left-ventricular-ejection-fraction-two-and-three-dimensional-multilayer-speckle-tracking-echocardiography
#14
Eun Jeong Cho, Sung-Ji Park, Eun Kyoung Kim, Ga Yeon Lee, Sung-A Chang, Jin-Oh Choi, Sang-Chol Lee, Seung Woo Park
BACKGROUND: The aim of this study was to determine the capability of real time three-dimensional echocardiography (RT3DE) and two-dimensional (2D) multilayer speckle tracking echocardiography (MSTE) for evaluation of early myocardial dysfunction triggered by increased left ventricular (LV) wall thickness in severe aortic stenosis (AS) with normal LV ejection fraction (EF≥55%). METHODS: Conventional, RT3D STE and 2D MSTE were performed in 45 patients (mean 68.9±9...
March 23, 2017: Echocardiography
https://www.readbyqxmd.com/read/28331450/pulmonary-thromboendarterectomy-for-pulmonary-hypertension-before-considering-transplant
#15
Hannah Kooperkamp, Inder Mehta, David Fary, Michael Bates
BACKGROUND: In cases of chronic thromboembolic pulmonary hypertension (CTEPH), referral for possible surgical intervention is important because surgery can be curative. Surgery necessitates cardiopulmonary bypass and deep circulatory arrest with pulmonary thrombectomy and bilateral endarterectomy (PTE). If surgery fails, lung transplant is the next best surgical option. Medical treatment is also an important adjunct. CASE REPORT: A 35-year-old female presented 3 months after a pulmonary embolus was found to be completely occluding her left pulmonary artery...
2017: Ochsner Journal
https://www.readbyqxmd.com/read/28330663/longitudinal-changes-in-lv-structure-and-diastolic-function-in-relation-to-arterial-properties-in-general%C3%A2-population
#16
Nicholas Cauwenberghs, Judita Knez, Jan D'hooge, Lutgarde Thijs, Wen-Yi Yang, Fang-Fei Wei, Zhen-Yu Zhang, Jan A Staessen, Tatiana Kuznetsova
OBJECTIVES: We assessed to what extent arterial properties measured at baseline and follow-up predict longitudinal alterations in echocardiographic indexes reflecting left ventricular (LV) structure and function. BACKGROUND: Serial imaging studies are needed to clarify the relation of changes in LV structure and function to arterial stiffness. METHODS: In 607 participants (50.7% women; mean age 50.7 years), using echocardiography and Doppler imaging, we measured LV dimensions, transmitral blood flow, and mitral annular tissue velocities at baseline and after 4...
March 10, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28329280/implantable-cardioverter-defibrillators-for-primary-prevention-of-death-in-left-ventricular-dysfunction-with-and-without-ischaemic-heart-disease-a-meta-analysis-of-8567-patients-in-the-11-trials
#17
Matthew J Shun-Shin, Sean L Zheng, Graham D Cole, James P Howard, Zachary I Whinnett, Darrel P Francis
Aims: Primary prevention implantable cardioverter defibrillators (ICDs) are established therapy for reducing mortality in patients with left ventricular systolic dysfunction and ischaemic heart disease (IHD). However, their efficacy in patients without IHD has been controversial. We undertook a meta-analysis of the totality of the evidence. Methods and results: We systematically identified all RCTs comparing ICD vs. no ICD in primary prevention. Eligible RCTs were those that recruited patients with left ventricular dysfunction, reported all-cause mortality, and presented their results stratified by the presence of IHD (or recruited only those with or without)...
February 21, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28329232/mid-term-results-of-bilateral-lung-transplant-with-postoperatively-extended-intraoperative-extracorporeal-membrane-oxygenation-for-severe-pulmonary-hypertension%C3%A2
#18
Jawad Salman, Fabio Ius, Wiebke Sommer, Thierry Siemeni, Christian Kuehn, Murat Avsar, Dietmar Boethig, Ulrich Molitoris, Christoph Bara, Jens Gottlieb, Tobias Welte, Axel Haverich, Marius M Hoeper, Gregor Warnecke, Igor Tudorache
OBJECTIVES: In severe pulmonary hypertension, diastolic dysfunction of the left ventricle causes significant morbidity and mortality after lung transplantation, which may be successfully reversed using a protocol based on perioperative veno-arterial extracorporeal membrane oxygenation (ECMO) and early extubation. Here, we present echocardiographic data and mid-term outcomes. METHODS: The records of lung transplanted patients at our institution between May 2010 and January 2016 were retrospectively reviewed...
March 2, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28329164/large-animal-model-of-functional-tricuspid-regurgitation-in-pacing-induced-end-stage-heart-failure
#19
Marcin Malinowski, Alistair G Proudfoot, David Langholz, Lenora Eberhart, Michael Brown, Hans Schubert, Jeremy Wodarek, Tomasz A Timek
OBJECTIVES: Functional tricuspid regurgitation (FTR) is common in patients with advanced heart failure and frequently complicates left ventricular assist device implantation yet remains poorly understood. We set out to establish large animal model of FTR that could serve as a research platform to investigate the pathogenesis of FTR associated with end-stage heart failure. METHODS: : Through right thoracotomy, ten adult sheep underwent implantation of pacemaker with epicardial LV lead, five sonomicrometry crystals on the right ventricle, and left and right ventricular telemetry pressure sensors during a beating heart off-pump procedure...
February 21, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28329100/long-term-cardiovascular-changes-following-creation-of-arteriovenous-fistula-in-patients-with-end-stage-renal-disease
#20
Yogesh N V Reddy, Masaru Obokata, Patrick G Dean, Vojtech Melenovsky, Karl A Nath, Barry A Borlaug
Aims: Short-term studies have reported left ventricular (LV) dilatation following surgical creation of arteriovenous fistulas (AVF) or arteriovenous grafts (AVGs), but chronic cardiac structural and functional changes have not been examined or related to clinical outcomes following AVF/AVG. We sought to characterize the long-term changes in cardiac structure and function in patients undergoing shunt creation for haemodialysis. Methods and results: A retrospective analysis was performed of patients undergoing echocardiography before and after surgical AVF/AVG creation for the initiation of haemodialysis...
March 6, 2017: European Heart Journal
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