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Acute myocardic infarct

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https://www.readbyqxmd.com/read/28410530/metformin-attenuated-endotoxin-induced-acute-myocarditis-via-activating-ampk
#1
Gang Liu, Kejia Wu, Li Zhang, Jie Dai, Wei Huang, Ling Lin, Pu Ge, Fuling Luo, Han Lei
Metformin is a widely used anti-diabetic drug and increasing evidence suggests that metformin have profound cardioprotective effects under both diabetic and non-diabetic situations. The protective benefits of metformin have been proved in diabetic patients with cardiovascular complications and in experimental animals with myocardial infarction and cardiac hypertrophy. In the present study, we found that treatment with metformin inhibited the cardiac expression of pro-inflammatory cytokines including tumor necrosis factor alpha (TNF-α), interleukin 1 beta (IL-1β) and interleukin 6 (IL-6) in endotoxin-challenged mice...
April 11, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28406417/a-rare-complication-of-viper-envenomation-cardiac-failure-a-case-report
#2
K Chara, N Baccouche, O Turki, K Regaig, A Chaari, M Bahloul, M Bouaziz
Viper envenomation is common in North Africa. Cardiac complications are not common features of snakebites, the clinical picture of which is usually dominated by toxin-associated neurological, hematological, and vascular damage. There are rare reports of acute myocardial infarction and/or ischemia caused by snakebites, while myocarditis after envenomation has not yet been reported, to our knowledge. We report the case of a 43-year-old woman admitted to our intensive care unit after viper envenomation complicated by acute heart failure with acute pulmonary edema, in a state of cardiogenic shock, accompanied by multi-organ failure, intravascular disseminated coagulation, and neurological damage...
February 1, 2017: Médecine et Santé Tropicales
https://www.readbyqxmd.com/read/28306693/cocaine-and-coronary-artery-diseases-a-systematic-review-of-the-literature
#3
Giovanni P Talarico, Maria L Crosta, Maria B Giannico, Francesco Summaria, Leonardo Calò, Roberto Patrizi
Cocaine is associated with important cardiac complications such as sudden death, acute myocarditis, dilated cardiomyopathy, life-threatening arrhythmias, and myocardial ischemia as well as infarction. It is well known that cocaine may induce vasospasm through adrenergic stimulation of the coronary arteries. Moreover, cocaine may promote intracoronary thrombosis, triggered by alterations in the plasma constituents, and platelet aggregation, leading to subsequent myocardial infarction. The long-term use of cocaine may stimulate atherosclerosis, probably through endothelial cell dysfunction...
May 2017: Journal of Cardiovascular Medicine
https://www.readbyqxmd.com/read/28275618/extracorporeal-life-support-for-refractory-ventricular-tachycardia
#4
REVIEW
Sujatha P Bhandary, Nicholas Joseph, James P Hofmann, Theodosios Saranteas, Thomas J Papadimos
Extracorporeal life support (ECLS) is a very effective bridging therapy in patients with refractory ventricular tachycardia (VT) associated with cardiogenic shock. A moribund patient in extremis, is not amenable to optimization by standard ACC/AHA guidelines. New approaches and novel salvage techniques are necessary to improve outcomes in patients with refractory clinical settings such as malignant ventricular arrhythmias, cardiac arrest, cardiogenic shock and/or pulmonary failure until further management options are explored...
February 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/28210569/infant-acute-myocarditis-mimicking-acute-myocardial-infarction
#5
Maher Jedidi, Samia Tilouche, Tasnim Masmoudi, Maha Sahnoun, Youssef Chkirbène, Sarra Mestiri, Lamia Boughamoura, Mohamed Ben Dhiab, Mohamed Kamel Souguir
Myocarditis is an inflammatory disease of the myocardium with heterogeneous clinical manifestations and progression. In clinical practice, although there are many methods of diagnosis of acute myocarditis, the diagnosis remains an embarrassing dilemma for clinicians. The authors report the case of 9-month-old infant who was brought to the Pediatric Emergency Department with sudden onset dyspnea. Examination disclosed heart failure and resuscitation was undertaken. The electrocardiogram showed an ST segment elevation in the anterolateral leads with a mirror image...
October 2016: Autopsy & case reports
https://www.readbyqxmd.com/read/28185705/cardiovascular-magnetic-resonance-imaging-pattern-at-the-time-of-diagnosis-of-treatment-na%C3%A3-ve-patients-with-connective-tissue-diseases
#6
Sophie Mavrogeni, George Markousis-Mavrogenis, Loukia Koutsogeorgopoulou, Theodoros Dimitroulas, Konstantinos Bratis, George D Kitas, Petros Sfikakis, Maria Tektonidou, Georgia Karabela, Efthymios Stavropoulos, Gikas Katsifis, Kyriaki A Boki, Anastasia Kitsiou, Vasiliki Filaditaki, Elias Gialafos, Sotiris Plastiras, Vasiliki Vartela, Genovefa Kolovou
BACKGROUND-AIM: Cardiac involvement at diagnosis of connective tissue disease (CTD) has been described by echocardiography. We hypothesized that cardio-vascular magnetic resonance (CMR) detects occult lesions at CTD diagnosis. PATIENTS-METHODS: CMR was performed early after diagnosis in 78 treatment-naïve CTDs (aged 43±11, 59F/19M) without cardiac involvement [5 Takayasu arteritis (TA), 4 Churg Strauss syndrome (CSS), 5 Wegener granulomatosis (WG), 16 systemic lupus erythematosus (SLE), 12 rheumatoid arthritis (RA), 8 mixed connective tissue diseases (MCTD), 12 ankylosing spondylitis (AS), 3 polymyalgia rheumatica (PMR), 8 systemic sclerosis (SSc) and 5 dermatomyositis (DM)]...
February 1, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28118527/from-childhood-to-adulthood-the-trajectory-of-damage-in-patients-with-childhood-onset-systemic-lupus-erythematosus
#7
Lily Sh Lim, Eleanor Pullenayegum, Lillian Lim, Dafna Gladman, Brian Feldman, Earl Silverman
Objectives 1) To determine the longitudinal damage trajectory of patients with childhood-onset SLE (cSLE). 2) To identify baseline and disease course predictors of damage trajectory. Methods This is a retrospective inception cohort. Longitudinal pediatric-age data was obtained from a cSLE research database while adult-age data was obtained from either a research database or patients' charts. Baseline factors were tested as predictors. Time-varying factors were lagged 6 to 24 months before a visit for testing their predictive effects...
January 24, 2017: Arthritis Care & Research
https://www.readbyqxmd.com/read/28070840/clinical-and-magnetic-resonance-evolution-of-infarct-like-myocarditis
#8
Riccardo Faletti, Marco Gatti, Ilaria Baralis, Laura Bergamasco, Rodolfo Bonamini, Francesca Ferroni, Massimo Imazio, Silvia Stola, Fiorenzo Gaita, Paolo Fonio
AIMS: To analyse the clinical and magnetic resonance evolution of myocarditis in patients with an "infarct-like" presentation pattern. METHODS: The study is a retrospective analysis of 52 patients with clinical diagnosis of "infarct-like" myocarditis confirmed by CMR as acute myocarditis according to Lake Louise criteria and 6 months follow-up. The CMR protocol included T2-weighted (oedema), early (hyperaemia) and late (fibrosis/necrosis) gadolinium enhancement sequences, according to Lake Louise criteria...
April 2017: La Radiologia Medica
https://www.readbyqxmd.com/read/28051221/contribution-of-cardiac-magnetic-resonance-imaging-in-the-diagnosis-of-acute-coronary-syndrome-with-normal-coronary-angiography
#9
Rana Dahmani, Rim Ben Said, Younes Arous, Houaida Mahfoudhi, Chedia Chourabi, Mehdi Ghommidh, Badii Jedaida, Nizar Ben Mansour, Abdeddayem Haggui, Nadhem Hajlaoui, Dhaker Lahidheb, Wafa Fehri, Habib Haouala
Background - Acute coronary syndrome with high level of troponin is a common pattern for emergency consultation. In 10% of cases, coronary angiography concluded that there were no significant coronary lesions. The contribution of cardiac magnetic resonance imaging (MRI) in the etiological investigation is increasing in these conditions. Aim - We analyzed the diagnostic value of cardiac MRI in case of acute coronary syndromes with elevated troponin and normal coronary angiography. Methods - It's a retrospective analytical study including 31 patients presenting with acute coronary syndrome with positive troponins and normal coronary angiography...
June 2016: La Tunisie Médicale
https://www.readbyqxmd.com/read/27987279/falsely-elevated-troponin-rare-occurrence-or-future-problem
#10
James Nguyen, Rosy Thachil, Neil Vyas, Thomas Marino
INTRODUCTION: Troponins are known to be released in response to cardiac damage and therefore are the biomarkers of choice for the early diagnosis of acute myocardial infarction (AMI), improving outcome in patients presenting with chest pain. However, false results can occur due to interference from other substances in the blood. CASE: A 52-year-old male with a past medical history of alcohol abuse, hypertension, and coronary artery bypass graft at age 34 with normal stress test 2 years before presented to the emergency department (ED) complaining of 1 day of non-exertional chest pain with radiation to the neck and left arm...
2016: Journal of Community Hospital Internal Medicine Perspectives
https://www.readbyqxmd.com/read/27981367/-cardiac-causes-of-chest-pain
#11
C Wächter, B Markus, B Schieffer
Because of the life-threatening character and a high prevalence in emergency rooms, cardiac causes are important differential diagnoses of acute chest pain with the need for rapid clarification. In this context the working diagnosis "acute coronary syndrome" (ACS) plays a major role. In a synopsis of the clinical presentation, medical history, electrocardiogram and analysis of cardiac biomarkers, ST-segment elevation myocardial infarction (STEMI), non-ST-segment elevation myocardial infarction (NSTEMI) and unstable angina pectoris can be specified as entities of ACS...
January 2017: Der Internist
https://www.readbyqxmd.com/read/27909839/biventricular-support-using-a-centrifugal-pump-in-a-6%C3%A2-year-old-with-fulminant-myocarditis
#12
Hiromu Kehara, Tamaki Takano, Takamitsu Terasaki, Kenji Okada
We experienced a case of ventricular assist with both a pulsatile-flow and a continuous-flow pump in a pediatric patient, and herein report the clinical course and characteristics of the pumps. A 6-year-old female was diagnosed with fulminant myocarditis and transferred to our hospital for mechanical support. After 12 days of extracorporeal membrane oxygenation, we implanted a left ventricular assist device (LVAD) and a right ventricular assist device (RVAD) using centrifugal Gyro pumps with a membrane oxygenator in a paracorporeal fashion...
December 1, 2016: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/27909469/value-of-the-wearable-cardioverter-defibrillator-wcd-as-a-bridging-therapy-before-implantation-of-a-cardioverter-defibrillator-icd
#13
REVIEW
Priv Doz, Johannes Sperzel
Wearable cardioverter defibrillators (WCD), initially available in 2002, have recently experienced more routine use in many institutions as a means of preventing sudden cardiac death (SCD) prior to implantable cardioverter defibrillator (ICD) evaluation or implantation. WCD differ from ICD by their noninvasive nature, making them well suited for patient populations who have a chance for significant cardiac recovery (such as after an acute myocardial infarction). Despite their noninvasive nature, WCD treatment of sustained ventricular tachyarrhythmias is highly successful...
February 2016: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/27747690/stemi-secondary-to-coronary-vasospasm-possible-adverse-event-of-methylphenidate-in-a-21-year-old-man-with-adhd
#14
Timo-Benjamin Baumeister, Ingo Wickenbrock, Christian A Perings
Methylphenidate (Ritalin(®)) is an increasingly used medication in the treatment of attention-deficit hyperactivity disorder (ADHD). Cardiovascular adverse effects like vasospasm or myocardial infarction are described as very rare adverse effects. We present the case of a 21-year-old man diagnosed with ADHD who recently started therapy with Ritalin(®) Adult 20 mg for at least 3 days. Afterwards he presented with chest pain, elevated troponin and creatine kinase, and posterolateral ST elevations. A myocarditis was initially supposed...
December 2016: Drug Safety—Case Reports
https://www.readbyqxmd.com/read/27667276/-the-effect-and-factors-associated-with-outcome-of-extracorporeal-membrane-oxygenation-in-refractory-cardiogenic-shock-patients
#15
R Q Zhu, C Z Liu, J H Lu, Y P Su, S C Wen, G J Nie, Y Z Hu, L E Zuo
Objective: To observe the clinical efficacy and factors associated with outcome of extracorporeal membrane oxygenation (ECMO) in refractory cardiogenic shock patients. Methods: Patients with refractory cardiogenic shock received ECMO treatment in our hospital from May 2013 to November 2015 were retrospectively analyzed. The clinical status before ECMO support, ECMO timing, complications and outcome were observed and analyzed.The hemodynamic data and the amount of vasoactive drugs at 2 hours before ECMO support and at 2, 6, 24 and 48 hours after ECMO support were collected and compared...
September 24, 2016: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/27660581/chagas-cardiomyopathy-in-new-orleans-and-the-southeastern-united-states
#16
Robert C Hsu, Joshua Burak, Sumit Tiwari, Chayan Chakraborti, Gary E Sander
BACKGROUND: Chagas disease (CD), caused by Trypanosoma cruzi, affects 6-7 million people worldwide annually, primarily in Central and South America, and >300,000 people in the United States. CD consists of acute and chronic stages. Hallmarks of acute CD include fever, myalgia, diaphoresis, hepatosplenomegaly, and myocarditis. Symptoms of chronic CD include pathologic involvement of the heart, esophagus, and colon. Myocardial involvement is identifiable by electrocardiogram and cardiac magnetic resonance imaging showing inflammation and left ventricular wall functional abnormalities...
2016: Ochsner Journal
https://www.readbyqxmd.com/read/27590129/t-cell-immunity-in-myocardial-inflammation-pathogenic-role-and-therapeutic-manipulation
#17
REVIEW
E Stephenson, K Savvatis, S A Mohiddin, F M Marelli-Berg
T-cell-mediated immunity has been linked not only to a variety of heart diseases, including classic inflammatory diseases such as myocarditis and post-myocardial infarction (Dressler's) syndrome, but also to conditions without an obvious inflammatory component such as idiopathic dilated cardiomyopathy and hypertensive cardiomyopathy. It has been recently proposed that in all these conditions, the heart becomes the focus of T-cell-mediated autoimmune inflammation following ischaemic or infectious injury. For example, in acute myocarditis, an inflammatory disease of heart muscle, T-cell responses are thought to arise as a consequence of a viral infection...
September 2, 2016: British Journal of Pharmacology
https://www.readbyqxmd.com/read/27570119/st-segment-elevation-mimicking-myocardial-infarction-after-hydrochloric-acid-ingestion-acute-caustic-myocarditis
#18
Rodolfo San Antonio, Margarida Pujol López, Rosario Jesús Perea, Manel Sabaté
ST-segment elevation after hydrochloric acid ingestion has barely been described in the literature, without identification of its causal mechanism. We hypothesize that acute caustic myocarditis, by direct contact between necrotic upper gastrointestinal tract and pericardium may induce the ECG findings.
January 2017: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/27497103/biventricular-unloading-in-patients-with-refractory-cardiogenic-shock
#19
Konstantinos Karatolios, Georgios Chatzis, Birgit Markus, Ulrich Luesebrink, Anette Richter, Bernhard Schieffer
BACKGROUND: Cardiogenic shock remains a clinical challenge with high mortality rate. Mechanical circulatory support (MCS) devices have become an integral component of the therapeutic armamentarium expanding the treatment options for refractory cardiogenic shock (RCS). METHODS: We included all consecutive patients with biventricular unloading with Impella-2.5 and VA-ECMO admitted for RCS between October 2013 and March 2015. Outcome data included survival to discharge, bridging to VAD and 28-day mortality...
November 1, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27388331/t1-and-t2-mapping-cardiovascular-magnetic-resonance-imaging-techniques-reveal-unapparent-myocardial-injury-in-patients-with-myocarditis
#20
Ulf K Radunski, Gunnar K Lund, Dennis Säring, Sebastian Bohnen, Christian Stehning, Bernhard Schnackenburg, Maxim Avanesov, Enver Tahir, Gerhard Adam, Stefan Blankenberg, Kai Muellerleile
INTRODUCTION: This study evaluated the ability of T1 and T2 mapping cardiovascular magnetic resonance (CMR) to detect myocardial injury in apparently normal myocardium of patients with myocarditis. MATERIALS AND METHODS: We included 20 patients with "infarct-like" acute myocarditis who had typical focal myocardial lesions on late gadolinium enhancement (LGE) images as well as 20 healthy controls. The CMR protocol consisted of a standard myocarditis protocol which was combined with T1 (modified Look-Locker inversion recovery (MOLLI) with a 3(3)5 scheme and T2 mapping (hybrid gradient- and spin-echo multi-echo sequence, GraSE)...
January 2017: Clinical Research in Cardiology: Official Journal of the German Cardiac Society
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