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https://www.readbyqxmd.com/read/29146514/brucella-related-myocarditis
#1
Sebastian Wendt, Norman Lippmann, Jeanette Fahnert, Arne C Rodloff, Christoph Lübbert
No abstract text is available yet for this article.
November 13, 2017: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/29146416/fulminant-adrenergic-myocarditis-complicated-by-pulmonary-edema-cardiogenic-shock-and-cardiac-arrest
#2
Pawel Rostoff, Bohdan Nessler, Patrycja Pikul, Karolina Golinska-Grzybala, Tomasz Miszalski-Jamka, Jadwiga Nessler
Adrenergic myocarditis is an uncommon presentation of pheochromocytoma and extremely rare cause of de novo acute heart failure (AHF). We present a case of a 31-year-old Caucasian woman with a history of hypertension and recurrent occipital headaches who was admitted to the emergency department due to severe de novo AHF presenting as pulmonary edema and cardiogenic shock. During the hospital admission the patient experienced asystolic cardiac arrest and was successfully resuscitated, intubated, and mechanically ventilated...
November 10, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29141748/trypanosoma-cruzi-infection-induces-pannexin-1-channel-opening-in-cardiac-myocytes
#3
Iván Barría, Juan Güiza, Fredi Cifuentes, Pedro Zamorano, Juan C Sáez, Jorge González, José L Vega
Trypanosoma cruzi, the etiological agent of Chagas diseases, invades the cardiac tissue causing acute myocarditis and heart electrical disturbances. In T. cruzi invasion, the parasite induces [Ca(2+)]i transients in the host cells, an essential phenomenon for invasion. To date, knowledge on the mechanism that elicits transients of [Ca(2+)]i during the infection of cardiac myocytes has not been fully characterized. Pannexin1 (Panx1) channel are poorly selective channels found in all vertebrates that serve as a pathway for ATP release...
November 6, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29138234/mesalazine-induced-myopericarditis-in-a-patient-with-ulcerative-colitis
#4
Jalal Asadi, Sanjay S Bhandari, Nauman Ahmed
A 25-year-old male with a background of ulcerative colitis presented with a two-week history of central chest pain. His ECG on presentation showed global T wave inversion with a peak troponin I of 165 ng/ml. Clinical diagnosis of myopericarditis/myocarditis was made. Echocardiography and cardiac MR confirmed the diagnosis. On detailed assessment of his medication history, mesalazine was suspected as an aetiological factor, with discontinuation resulting in an improvement in symptoms, inflammatory markers and cardiac enzymes...
November 14, 2017: Echo Research and Practice
https://www.readbyqxmd.com/read/29136142/the-forkhead-transcription-factor-foxo3-negatively-regulates-natural-killer-cell-function-and-viral-clearance-in-myocarditis
#5
Madlen Loebel, Luise Holzhauser, Jelka A Hartwig, Praphulla C Shukla, Konstantinos Savvatis, Alexander Jenke, Martina Gast, Felicitas Escher, Sonya C Becker, Sandra Bauer, Andrea Stroux, Antje Beling, Meike Kespohl, Sandra Pinkert, Henry Fechner, Uwe Kuehl, Dirk Lassner, Wolfgang Poller, Heinz-Peter Schultheiss, Tanja Zeller, Stefan Blankenberg, Anna-Pia Papageorgiou, Stephane Heymans, Ulf Landmesser, Carmen Scheibenbogen, Carsten Skurk
Aims: Foxo3 is a transcription factor involved in cell metabolism, survival, and inflammatory disease. However, mechanistic insight in Foxo3 effects is still limited. Here, we investigated the role of Foxo3 on natural killer (NK) cell responses and its effects in viral myocarditis. Methods and results: Effects of Foxo3 on viral load and immune responses were investigated in a model of coxsackie virus B3 myocarditis in wild-type (WT) and Foxo3 deficient mice. Reduced immune cell infiltration, viral titres, and pro-inflammatory cytokines in cardiac tissue were observed in Foxo3-/- mice 7 days post-infection (p...
November 9, 2017: European Heart Journal
https://www.readbyqxmd.com/read/29131444/native-t1-reference-values-for-nonischemic-cardiomyopathies-and-populations-with-increased-cardiovascular-risk-a-systematic-review-and-meta-analysis
#6
REVIEW
Maaike van den Boomen, Riemer H J A Slart, Enzo V Hulleman, Rudi A J O Dierckx, Birgitta K Velthuis, Pim van der Harst, David E Sosnovik, Ronald J H Borra, Niek H J Prakken
BACKGROUND: Although cardiac MR and T1 mapping are increasingly used to diagnose diffuse fibrosis based cardiac diseases, studies reporting T1 values in healthy and diseased myocardium, particular in nonischemic cardiomyopathies (NICM) and populations with increased cardiovascular risk, seem contradictory. PURPOSE: To determine the range of native myocardial T1 value ranges in patients with NICM and populations with increased cardiovascular risk. STUDY TYPE: Systemic review and meta-analysis...
November 13, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/29128901/fgl2-knockdown-improves-heart-function-through-regulation-of-tlr9-signaling-in-the-experimental-autoimmune-myocarditis-rats
#7
Zhenzhong Zheng, Longhui Yu, Yujing Wu, Hao Wu
Fibrinogen-like protein 2 (FGL2) is an important immune regulator of both innate and adaptive response. It is present on the surface of macrophages and endothelial cells, and can be constitutively secreted by CD4(+)CD8(+) T cells. Previous studies showed that FGL2 is a potential target for the treatment of experimental autoimmune myocarditis. However, the molecular mechanism of the roles of FGL2 in experimental autoimmune myocarditis is poorly understood. Here, we silenced FGL2 gene by using FGL2-RNAi lentivirus to reveal the heart function in experimental autoimmune myocarditis rats...
November 11, 2017: Immunologic Research
https://www.readbyqxmd.com/read/29126352/fatal-myocarditis-and-rhabdomyolysis-induced-by-nivolumab-during-the-treatment-of-type-b3-thymoma
#8
Qiang Chen, Dang-Sheng Huang, Li-Wei Zhang, Yuan-Qing Li, Hong-Wei Wang, Hong-Bin Liu
Immune checkpoint inhibitors including programmed death-1 inhibitors are promising agents for many types of malignancies; however, it is still an off-label choice for type B3 thymoma. We reported for the first time a patient with type B3 thymoma developed fatal myocarditis and rhabdomyolysis after one dose of nivolumab administration. The results from myocardial and muscle biopsies revealed extensive myocyte damage, T-lymphocytic infiltration and strongly expression of PD-L1 which confirmed the nivolumab-related immune-related adverse events (irAEs)...
November 10, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/29124008/rare-complicated-parapneumonic-effusion-mycoplasma-pneumoniae-with-new-onset-lupus-flare-case-report-and-literature-review
#9
Bharat Bajantri, Shaik Danial, Richard Duncalf, Misbahuddin Khaja
Mycoplasma pneumoniae has been associated with respiratory tract infections. Mycoplasma pneumoniae pneumonia-related pleural effusion is rarely reported. Extra-pulmonary abnormalities such as encephalitis, myocarditis, glomerulonephritis, and myringitis have been reported. However pulmonary manifestations in systemic lupus erythematosus include pneumonitis, pleurisy, interstitial lung disease, and thromboembolic disease. We present the case of a 26-year-old male who came for evaluation of fever, cough, and shortness of breath with right-sided chest pain...
2017: Respiratory Medicine Case Reports
https://www.readbyqxmd.com/read/29121733/pheochromocytoma-as-a-reversible-cause-of-cardiomyopathy-analysis-and-review-of-the-literature
#10
Rong Zhang, Deepashree Gupta, Stewart G Albert
CONTEXT: Pheochromocytoma and paraganglioma are rare neuroendocrine tumors which overproduce catecholamines and arise from the adrenal gland or extra-adrenal chromaffin cells of the sympathetic and parasympathetic ganglia (1). Excessive catecholamine-induced stimulation of cardiac myocytes leads to damage which manifests in several forms ranging from Takotsubo to dilated cardiomyopathy. Diagnosis of pheochromocytoma-related cardiomyopathies is often delayed due to the atypical presentation associated with many cases...
December 15, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/29120873/a-rare-case-of-isolated-atrial-myocarditis-causing-death-with-no-post-mortem-computed-tomography-scan-correlation
#11
Rexson Tse, Jack Garland, Kilak Kesha, Yvonne Triggs, Lucy Modahl, David Milne, Zhi Yap, Simon Stables
Acute myocarditis is a potentially fatal cardiac pathology that is thought to cause sudden death through arrhythmia and cardiac failure. Of the different subtypes, lymphocytic myocarditis is the most common form. The pathophysiology of myocarditis can be generally diffuse or focally involve the ventricles, but less frequently affects the atria. Although the clinical literature reports isolated atrial myocarditis as a cause of atrial fibrillation and enlargement, there is scant postmortem literature on the findings of this pathology...
November 9, 2017: American Journal of Forensic Medicine and Pathology
https://www.readbyqxmd.com/read/29113868/a-case-of-influenza-type-a-myocarditis-that-presents-with-st-elevation-mi-cardiogenic-shock-acute-renal-failure-and-rhabdomyolysis-and-with-rapid-recovery-after-treatment-with-oseltamivir-and-intra-aortic-balloon-pump-support
#12
Eleni Geladari, Vasilios Papademetriou, Hans Moore, David Lu
We present a 59-year-old black male with history of type-1 diabetes and alcohol abuse. Patient became critically ill after a 5-day period of burning throat discomfort. On arrival patient was lethargic, in cardiogenic shock with a blood pressure of 81/47mmHg. Immediate diagnoses included diabetic ketoacidosis, acute renal failure, and possible septic shock. He was intubated, resuscitated with intravenous fluids, maintained on three inotropic agents, and given empiric wide spectrum antibiotics. An ECG showed a new ST elevation MI and an echocardiogram showed severe LV dysfunction...
May 2, 2017: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/29111106/2017-comprehensive-update-of-the-canadian-cardiovascular-society-guidelines-for-the-management-of-heart-failure
#13
Justin A Ezekowitz, Eileen O'Meara, Michael A McDonald, Howard Abrams, Michael Chan, Anique Ducharme, Nadia Giannetti, Adam Grzeslo, Peter G Hamilton, George A Heckman, Jonathan G Howlett, Sheri L Koshman, Serge Lepage, Robert S McKelvie, Gordon W Moe, Miroslaw Rajda, Elizabeth Swiggum, Sean A Virani, Shelley Zieroth, Abdul Al-Hesayen, Alain Cohen-Solal, Michel D'Astous, Sabe De, Estrellita Estrella-Holder, Stephen Fremes, Lee Green, Haissam Haddad, Karen Harkness, Adrian F Hernandez, Simon Kouz, Marie-Hélène LeBlanc, Frederick A Masoudi, Heather J Ross, Andre Roussin, Bruce Sussex
Since the inception of the Canadian Cardiovascular Society heart failure (HF) guidelines in 2006, much has changed in the care for patients with HF. Over the past decade, the HF Guidelines Committee has published regular updates. However, because of the major changes that have occurred, the Guidelines Committee believes that a comprehensive reassessment of the HF management recommendations is presently needed, with a view to producing a full and complete set of updated guidelines. The primary and secondary Canadian Cardiovascular Society HF panel members as well as external experts have reviewed clinically relevant literature to provide guidance for the practicing clinician...
November 2017: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/29109860/development-and-application-of-an-indirect-elisa-for-the-detection-of-antibodies-against-encephalomyocarditis-virus
#14
Li Zhang, Yan Qi, Li Luo, Jiguo Sun, Wanzhe Yuan
Encephalomyocarditis virus (EMCV) can cause acute myocarditis in young pigs or reproductive failure in sows. It has been recognized worldwide as a pathogen infecting many species and causes substantial economic losses. In the present study, an indirect ELISA was developed for the detection of antibodies to EMCV. The VP1 gene of EMCV was amplified by reverse transcription-quantitative polymerase chain reaction and expressed in Escherichia coli with 49.3 kDa under the condition of isopropyl-β-d-thiogalactoside...
November 2017: Biomedical Reports
https://www.readbyqxmd.com/read/29108785/semaphorin7a-aggravates-coxsackievirusb3-induced-viral-myocarditis-by-increasing-%C3%AE-1%C3%AE-1-integrin-macrophages-and-subsequent-enhanced-inflammatory-response
#15
Xuejie Wu, Yawen Meng, Chao Wang, Yan Yue, Chunsheng Dong, Sidong Xiong
Semaphorin7A (Sema7A) has been reported to play various roles in nerve axon growth, tumor suppression, and tissue remodeling, as well as regulation of intestinal inflammation diseases. Viral myocarditis (VMC) characterized by viral-myocardial-cell necrosis and inflammatory cell infiltration is a common clinical disease of the cardiovascular system. However, the role of Sema7A in coxsackievirus B3 (CVB3)-induced VMC has not been reported. In this study, we generated an acute VMC mouse model by CVB3 infection, and manipulated Sema7A expression by in vivo polyethyleneimine-mediated Sema7A down-regulation...
November 3, 2017: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/29106977/causes-of-troponin-elevation-and-associated-mortality-in-young-patients
#16
Candace Wu, Avinainder Singh, Bradley Collins, Amber Fatima, Arman Qamar, Ankur Gupta, Jon Hainer, Josh Klein, Petr Jarolim, Marcelo Di Carli, Khurram Nasir, Deepak L Bhatt, Ron Blankstein
BACKGROUND: While increased serum troponin levels are often due to myocardial infarction, increased levels may also be found in a variety of other clinical scenarios. Although these causes of troponin elevation have been characterized in several studies in older adults, they have not been well characterized in younger individuals. METHODS: We conducted a retrospective review of patients 50 years of age or younger who presented to two large tertiary care centers between January 2000 and April 2016 with elevated serum troponin levels...
October 26, 2017: American Journal of Medicine
https://www.readbyqxmd.com/read/29105303/myocarditis-and-kawasaki-disease
#17
Audrey Dionne, Nagib Dahdah
Kawasaki disease (KD) is the most common vasculitis of childhood. Coronary artery aneurysms and myocarditis are common cardiovascular complications of KD. While evidence of myocarditis can be found in all patients with KD on histology specimens, only a minority of patients are clinically symptomatic. Occasionally children can present with KD shock syndrome and hemodynamic instability as a result of decreased systolic function and vasoplegia. Several children with KD have depressed shortening fraction on echocardiography...
November 3, 2017: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/29104763/cardiotoxicity-of-immune-checkpoint-inhibitors
#18
REVIEW
Gilda Varricchi, Maria Rosaria Galdiero, Giancarlo Marone, Gjada Criscuolo, Maria Triassi, Domenico Bonaduce, Gianni Marone, Carlo Gabriele Tocchetti
Cardiac toxicity after conventional antineoplastic drugs (eg, anthracyclines) has historically been a relevant issue. In addition, targeted therapies and biological molecules can also induce cardiotoxicity. Immune checkpoint inhibitors are a novel class of anticancer drugs, distinct from targeted or tumour type-specific therapies. Cancer immunotherapy with immune checkpoint blockers (ie, monoclonal antibodies targeting cytotoxic T lymphocyte-associated antigen 4 (CTLA-4), programmed cell death 1 (PD-1) and its ligand (PD-L1)) has revolutionised the management of a wide variety of malignancies endowed with poor prognosis...
2017: ESMO Open
https://www.readbyqxmd.com/read/29104480/heart-failure-and-mortality-of-adult-survivors-from-acute-myocarditis-requiring-intensive-care-treatment-a-nationwide-cohort-study
#19
Jung-Jung Chang, Ming-Shyan Lin, Tien-Hsing Chen, Dong-Yi Chen, Shao-Wei Chen, Jen-Te Hsu, Po-Chang Wang, Yu-Sheng Lin
Background The correlation between severity and long-term outcomes of pediatric myocarditis have been reported, however this correlation in adults has rarely been studied. Materials and Methods This nationwide population-based cohort study used data from the National Health Insurance Research Database in Taiwan. Patients aged < 75 and > 18 years admitted to an intensive care unit due to acute myocarditis were enrolled and divided into three groups according to mechanical circulatory support (MCS) after excluding major comorbidities...
2017: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/29096808/eosinophilic-myocarditis-as-a-cause-of-acute-cardiac-syndromes-the-importance-of-awareness
#20
EDITORIAL
Leslie T Cooper
No abstract text is available yet for this article.
November 7, 2017: Journal of the American College of Cardiology
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