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https://www.readbyqxmd.com/read/29779586/multimodality-assessment-of-right-ventricular-strain-in-patients-with-acute-pulmonary-embolism
#1
Brett J Carroll, Benedikt H Heidinger, Dominique C Dabreo, Jason D Matos, Donya Mohebali, Stephanie A Feldman, Ian McCormick, Diana Litmanovich, Warren J Manning
Optimal risk stratification is essential in managing patients with an acute pulmonary embolism (PE). There are limited data evaluating the potential additive value of various methods of evaluation of right ventricular (RV) strain in PE. We retrospectively evaluated RV strain by computed tomography (CT), transthoracic echocardiography (TTE), electrocardiography (ECG), and troponin levels in consecutive hospitalized patients with acute PE (May 2007 to December 2014). Four-hundred and seventy-seven patients met inclusion criteria...
March 28, 2018: American Journal of Cardiology
https://www.readbyqxmd.com/read/29779296/the-assessment-and-management-of-chest-pain-in-primary-care-a-focus-on-acute-coronary-syndrome
#2
Richard Thomsett, Louise Cullen
BACKGROUND: Chest pain is a common presentation and diagnosis can be challenging. There are many causes for chest pain, including life-threatening conditions such as acute coronary syndrome (ACS), which can prove difficult to diagnose. OBJECTIVE: This article focuses on diagnosis and early management of patients with possible ACS. Key differentials and essential primary care investigations and management are outlined. Hospital-based risk stratification and management are described, providing an outline of what patients can expect if referred to hospital...
May 2018: Australian journal of general practice
https://www.readbyqxmd.com/read/29779029/low-plasma-hydrogen-sulfide-is-associated-with-impaired-renal-function-and-cardiac-dysfunction
#3
Qing Kuang, Ning Xue, Jing Chen, Ziyan Shen, Xiaomeng Cui, Yi Fang, Xiaoqiang Ding
BACKGROUND: Chronic kidney disease (CKD) has been proposed to associate with decreased hydrogen sulfide (H2S) level. Nevertheless, the role of H2S in the pathogenesis of CKD has not been fully investigated. Our study aimed to investigate the plasma level of endogenous H2S in patients with different stages of CKD, and to identify the role of H2S in the progression of CKD and its relationship with cardiovascular diseases. METHODS: A total of 157 non-dialysis CKD patients were recruited in our study, with 37 age- and sex-matched healthy individuals as control...
May 18, 2018: American Journal of Nephrology
https://www.readbyqxmd.com/read/29778854/proposed-stages-of-myocardial-phenotype-development-in-fabry-disease
#4
Sabrina Nordin, Rebecca Kozor, Katia Medina-Menacho, Amna Abdel-Gadir, Shanat Baig, Daniel M Sado, Ilaria Lobascio, Elaine Murphy, Robin H Lachmann, Atul Mehta, Nicola C Edwards, Uma Ramaswami, Richard P Steeds, Derralynn Hughes, James C Moon
OBJECTIVES: The authors sought to explore the Fabry myocardium in relation to storage, age, sex, structure, function, electrocardiogram changes, blood biomarkers, and inflammation/fibrosis. BACKGROUND: Fabry disease (FD) is a rare, x-linked lysosomal storage disorder. Mortality is mainly cardiovascular with men exhibiting cardiac symptoms earlier than women. By cardiovascular magnetic resonance, native T1 is low in FD because of sphingolipid accumulation. METHODS: A prospective, observational study of 182 FD (167 adults, 15 children; mean age 42 ± 17 years, 37% male) who underwent cardiovascular magnetic resonance including native T1, late gadolinium enhancement (LGE), and extracellular volume fraction, 12-lead electrocardiogram, and blood biomarkers (troponin and N-terminal pro-brain natriuretic peptide)...
May 11, 2018: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/29777127/paradoxical-cardiotoxicity-of-intraperitoneally-injected-epigallocatechin-gallate-preparation-in-diabetic-mice
#5
Nora O Abdel Rasheed, Lamiaa A Ahmed, Dalaal M Abdallah, Bahia M El-Sayeh
Numerous clinical and bioavailability studies addressed epigallocatechin gallate (EGCG) beneficial effects; however, our previous work revealed EGCG-induced nephrotoxicity in the presence of diabetes. In this study, the potential myocardial toxicity of EGCG preparation (100 mg/kg/day, IP; 4 days) in diabetic mice injected with streptozotocin (STZ; 150 mg/kg, IP) was investigated. Diabetic mice receiving EGCG preparation showed electrocardiographic changes in addition to elevation of both serum creatine kinase-MB and troponin-I levels accompanied by microscopic myocardial damage...
May 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29776992/cardiomyopathy-mutation-f88l-in-troponin-t-abolishes-length-dependency-of-myofilament-ca-2-sensitivity
#6
Sherif M Reda, Murali Chandra
Recent clinical studies have revealed a new hypertrophic cardiomyopathy-associated mutation (F87L) in the central region of human cardiac troponin T (TnT). However, despite its implication in several incidences of sudden cardiac death in young and old adults, whether F87L is associated with cardiac contractile dysfunction is unknown. Because the central region of TnT is important for modulating the muscle length-mediated recruitment of new force-bearing cross-bridges (XBs), we hypothesize that the F87L mutation causes molecular changes that are linked to the length-dependent activation of cardiac myofilaments...
May 18, 2018: Journal of General Physiology
https://www.readbyqxmd.com/read/29776700/assessment-of-the-utility-of-ordering-a-troponin-in-low-and-intermediate-risk-patients-presenting-to-the-emergency-department-with-supraventricular-tachycardia-a-retrospective-chart-review
#7
David Noorvash, Rosemarie Ramos, Linda Hatch, Andrew Muck, Adriana Segura Olson
BACKGROUND: A troponin assay is commonly sent for patients presenting to emergency departments (EDs) with supraventricular tachycardia (SVT). Multiple studies suggest that elevated troponin levels do not predict coronary artery disease in these patients. Patients with elevated troponins are more likely to have additional cardiac testing, which can lead to increased health care costs and unnecessary invasive procedures. OBJECTIVE: Our objective was to evaluate low- to intermediate-risk patients (HEART [history, electrocardiography, age, risk factors and troponin] Score 1-6) presenting to the ED with SVT...
May 15, 2018: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29775410/apelin-and-apj-orchestrate-complex-tissue-specific-control-of-cardiomyocyte-hypertrophy-and-contractility-in-the-hypertrophy-heart-failure-transition
#8
Victoria Nicole Parikh, Jing Liu, Ching Shang, Christopher Woods, Alex Chia Yu Chang, Mingming Zhao, David N Charo, Zachary Grunwald, Yong Huang, Kinya Seo, Philip S Tsao, Daniel Bernstein, Pilar Ruiz-Lozano, Thomas Quertermous, Euan A Ashley
The G protein coupled receptor APJ is a promising therapeutic target for heart failure. Constitutive deletion of APJ in the mouse is protective against the hypertrophy-heart failure transition via elimination of ligand-independent, β-arrestin dependent stretch transduction. However, the cellular origin of this stretch transduction and the details of its interaction with apelin signaling remain unknown. We generated mice with conditional elimination of APJ in the endothelium (APJendo-/- ) and myocardium (APJmyo-/- )...
May 18, 2018: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/29774748/assessment-of-trazodone-induced-cardiotoxicity-after-repeated-doses-in-rats
#9
O Atli, V Kilic, M Baysal, G Kilic, G Gormus, S Ucarcan, B Korkut, S Ilgin
Trazodone (TRZ) is an antidepressant drug commonly used in the treatment of depression, anxiety, and insomnia. Although some studies demonstrated the adverse effects of TRZ related to cardiovascular system, the conflicting results were observed in these studies. Therefore, we aimed to investigate the cardiac adverse effects of TRZ in rats at repeated doses in our study. In accordance with this purpose, TRZ was administered orally to rats at 5, 10, and 20 mg/kg doses for 28 days. Electrocardiogram records, serum aspartate aminotransferase (AST), lactate dehydrogenase, creatine kinase-myoglobin band, cardiac troponin-T (cTn-T) levels, DNA damage in cardiomyocytes, and histologic view of heart tissues were evaluated...
January 1, 2018: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/29774564/mortality-in-sepsis-comparison-of-outcomes-between-patients-with-demand-ischemia-acute-myocardial-infarction-and-neither-demand-ischemia-nor-acute-myocardial-infarction
#10
Mahek Shah, Soumya Patnaik, Obiora Maludum, Brijesh Patel, Byomesh Tripathi, Manyoo Agarwal, Lohit Garg, Sahil Agrawal, Ulrich P Jorde, Matthew W Martinez
INTRODUCTION: Elevation in cardiac troponins is common among septic patients. We sought to explore outcomes among those admitted with demand ischemia(DI), acute myocardial infarction(AMI) and neither DI nor AMI in sepsis. METHODS: We analyzed data from the 2011-2014 National Inpatient Sample among patients admitted for sepsis. We compared outcomes among sepsis patients with i)DI versus AMI and ii)DI versus neither DI nor AMI using separate propensity matched cohorts...
May 18, 2018: Clinical Cardiology
https://www.readbyqxmd.com/read/29773952/remote-ischemic-preconditioning-in-myocardial-protection-in-hemodialysis-patients
#11
Marcelo R Bacci, Livia Y Vasconcelos, Neif Murad, Antonio Carlos P Chagas, Ana Carolina Capuano, Beatriz Ca Alves, Edimar C Pereira, Ligia A Azzalis, Virginia Bc Junqueira, Fernando LA Fonseca
Background: Remote ischemic preconditioning (RIPC) is a procedure that generates a brief period of ischemia followed by reperfusion. The role of RIPC in protecting myocardial ischemia during hemodialysis is not yet established. The aim of the study was to evaluate RIPC myocardial protection as evaluated by ultrasensitive I troponin in hemodialysis outpatients. Patients and methods: A double-blind randomized trial with two groups: intervention submitted to RIPC and control group without RIPC...
2018: International Journal of General Medicine
https://www.readbyqxmd.com/read/29773804/smooth-muscle-like-ca-2-regulation-of-actin-myosin-interaction-in-adult-jellyfish-striated-muscle
#12
Hiroyuki Tanaka, Shiori Ishimaru, Yasuhiro Nagatsuka, Keisuke Ohashi
Cnidaria is an animal phylum, whose members probably have the most ancestral musculature. We prepared and characterized, for the first time to our knowledge, native actomyosin from the striated myoepithelium of the adult moon jelly Aurelia sp. The actomyosin contained myosin, paramyosin-like protein, Ser/Thr-kinase, actin, and two isoforms of tropomyosin, but not troponin, which is known to activate contraction dependent on intracellular Ca2+ signaling in almost all striated muscles of bilaterians. Notably, the myosin comprised striated muscle-type heavy chain and smooth muscle-type regulatory light chains...
May 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29771705/the-causality-nexus-between-the-tako-tsubo-syndrome-and-an-assault-a-forensic-case-report
#13
Malek Zribi, Syrine Azza Manoubi, Narjes Karray, Salma Charfeddine, Wiem Benamar, Zouhir Hammami, Samir Kammoun, Samir Maatoug
"Tako-tsubo" cardiomyopathy, also known as "broken heart syndrome," is one of the rarest types of stress-induced cardiomyopathy. It frequently mimics acute coronary syndrome, characterized by transient left ventricular dysfunction, electrocardiographic changes, and release of myocardial enzymes. After treatment, the patients are cured in most cases without sequelae. Tako-tsubo syndrome is rarely considered as a reason for consultation in the forensic department.Herein, we report a case of a 68-year-old woman who was assaulted by her police officer neighbor...
May 4, 2018: American Journal of Forensic Medicine and Pathology
https://www.readbyqxmd.com/read/29771447/intermedin1-53-protects-cardiac-function-in-rats-with-septic-shock-via-inhibiting-oxidative-stress-and-cardiomyocyte-apoptosis
#14
Y-J Yu, A-H Su, H-B Yang, J-X Chen
OBJECTIVE: To investigate the protective effect of intermedin1-53 (IMD1-53) on cardiac function in rats with septic shock and its underlying mechanism. MATERIALS AND METHODS: Twenty-four male Sprague-Dawley (SD) rats were randomly assigned into three groups, namely the control group (NC group), septic shock group (ET group) and IMD1-53 treatment group (IMD group), with 8 rats in each group. Levels of hemodynamic indicators, blood glucose, lactate acid, CK-MB (creatine kinase-MB) and cTnI (cardiac troponin I) in rats were determined...
May 2018: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29771155/cardiac-events-within-one-year-after-a-subarachnoid-haemorrhage-the-predictive-value-of-troponin-elevation-after-aneurysm-occlusion
#15
Annemarie Akkermans, Linda M Peelen, Judith A van Waes, Gabriël J Rinkel, Wilton A van Klei
Background Patients who survive after an aneurysmal subarachnoid haemorrhage (ASAH) have an increased incidence of cardiovascular events compared with the general population. We assessed whether troponin elevation after aneurysm occlusion, as marker of myocardial injury, can predict long-term cardiac events. Methods We analysed a prospectively collected cohort of 159 patients with ASAH and early aneurysm occlusion, in whom routine post-intervention troponin I (TnI) measurements were performed. With competing risk regression modelling we estimated the association between TnI elevation after aneurysm occlusion and major adverse cardiac events within one year...
January 1, 2018: European Journal of Preventive Cardiology
https://www.readbyqxmd.com/read/29770800/current-and-future-circulating-biomarkers-for-cardiac-amyloidosis
#16
REVIEW
Marco Luciani, Luca Troncone, Federica Del Monte
Cardiac amyloidosis (CA) comprises a heterogeneous group of medical conditions affecting the myocardium. It presents with proteinaceous infiltration with variable degrees of severity, prevalence and evolution. Despite this heterogeneity, erroneous protein folding is the common pathophysiologic process, yielding the formation of a single misfolded protein (monomer) that progressively evolves and ultimately forms amyloid fibers. Additionally, by seeding out from the organs of origin, intermediates called oligomers metastasize and restart the process...
May 17, 2018: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/29770799/heart-type-fatty-acid-binding-protein-h-fabp-as-a-biomarker-for-acute-myocardial-injury-and-long-term-post-ischemic-prognosis
#17
REVIEW
Xiao-Dong Ye, Yi He, Sheng Wang, Gordon T Wong, Michael G Irwin, Zhengyuan Xia
Acute myocardial infarction (AMI) is a life-threatening event. Even with timely treatment, acute ischemic myocardial injury and ensuing ischemia reperfusion injury (IRI) can still be difficult issues to tackle. Apart from radiological and other auxiliary examinations, laboratory tests of applicable cardiac biomarkers are also necessary for early diagnosis and close monitoring of this disorder. Heart-type fatty acid binding protein (H-FABP), which mainly exists inside cardiomyocytes, has recently emerged as a potentially promising biomarker for myocardial injury...
May 17, 2018: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/29770745/2706-km-cycling-in-two-weeks-effects-on-cardiac-function-in-six-elderly-male-athletes
#18
Thomas Morville, Mads Rosenkilde, Nick Mattsson, Flemming Dela, Jørn W Helge, Hanne K Rasmusen
INTRODUCTION: Physiological effects of exercise on trained and untrained individuals have been studied extensively. Typically, young or middle-aged individuals are examined before and after short periods of vigorous exertion. METHODS: We studied six elderly male athletes (61±8 years (mean ± SD); baseline VO2 max 48±5 ml·kg-1 · min-1 ) with focus on cardiac function and biomarkers following 14 consecutive days of moderate intensity exercise. Cardiac dimensions, function, biomarkers, and other measures of cardiovascular health were examined at baseline and 2 and 28 h after the last day of cycling a total of 2706 km...
May 17, 2018: Physician and Sportsmedicine
https://www.readbyqxmd.com/read/29770219/determinants-and-prognosis-of-high-sensitivity-cardiac-troponin-t-peak-plasma-concentration-in-patients-hospitalized-for-non-cardiogenic-shock
#19
Marie Caujolle, Jerome Allyn, Caroline Brulliard, Dorothée Valance, David Vandroux, Olivier Martinet, Nicolas Allou
Purpose: The aim of this study was to assess the determinants and prognostic value of high-sensitivity cardiac troponin T peak plasma concentration in intensive care unit patients with non-cardiogenic shock. Material and methods: A prospective observational cohort study was conducted in a single intensive care unit between November 2014 and December 2015. Results: During the study period, 206 patients were hospitalized in the intensive care unit for non-cardiogenic shock and the median peak high-sensitivity cardiac troponin T was 55...
2018: SAGE Open Medicine
https://www.readbyqxmd.com/read/29769492/relationship-between-triglyceride-and-hdl-c-ratio-with-acute-coronary-syndrome
#20
M Z Islam, M N Islam, T K Bhowmik, B Saha, M S Hossain, H Ahmed, M S Ali, S S Shakil, P K Paul
Cardiovascular diseases (CVD) is the leading cause of death worldwide, responsible for one third of death, coronary artery disease (CAD) is the most common cause. Dyslipidaemiais one of the major contributors increased of CAD risk. This study was aimed to find out the relationship between triglyceride and HDL cholesterol ratio with acute coronary syndrome. This cross sectional study was conducted in the department of Cardiology, Mymensingh Medical College Hospital from August 2009 to May 2010. Smoking, hypertension, serum total cholesterol level, serum HDL-C, LDL-C, triglyceride (TG) level were important variable considered...
April 2018: Mymensingh Medical Journal: MMJ
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