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| Veloso,Henrique Horta; Ferreira Júnior,João Anísio; Paiva,Joyce Morgana Braga de; Honório,Júlio Faria; Bellei,Nancy C. Junqueira; Paola,Angelo Amato Vincenzo de. |
| Dengue fever is a viral infection transmitted by the mosquito, Aedes aegypti. Cardiac rhythm disorders, such as atrioventricular blocks and ventricular ectopic beats, appear during infection and are attributed to viral myocarditis. However, supraventricular arrhythmias have not been reported. We present a case of acute atrial fibrillation, with a rapid ventricular rate, successfully treated with intravenous amiodarone, in a 62-year-old man with dengue hemorrhagic fever, who had no structural heart disease. |
| Tipo: Info:eu-repo/semantics/report |
Palavras-chave: Atrial fibrilation; Dengue; Arrhythmia. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702003000600010 |
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| Takada,J.Y.; Solimene,M.C.; da Luz,P.L.; Grupi,C.J.; Giorgi,D.M.A.; Rigonatti,S.P.; Rumi,D.O.; Gowdak,L.H.W.; Ramires,J.A.F.. |
| To evaluate the impact of electroconvulsive therapy on arterial blood pressure, heart rate, heart rate variability, and the occurrence of ischemia or arrhythmias, 38 (18 men) depressive patients free from systemic diseases, 50 to 83 years old (mean: 64.7 ± 8.6) underwent electroconvulsive therapy. All patients were studied with simultaneous 24-h ambulatory blood pressure and Holter monitoring, starting 18 h before and continuing for 3 h after electroconvulsive therapy. Blood pressure, heart rate, heart rate variability, arrhythmias, and ischemic episodes were recorded. Before each session of electroconvulsive therapy, blood pressure and heart rate were in the normal range; supraventricular ectopic beats occurred in all patients and ventricular ectopic... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Electroconvulsive therapy; Blood pressure; Heart rate; Arrhythmia; Myocardial ischemia. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2005000900009 |
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| Corrêa,F.G.; Pontes,C.L.S.; Verzola,R.M.M.; Mateos,J.C.P.; Velho,P.E.N.F.; Schijman,A.G.; Selistre-de-Araujo,H.S.. |
| Infection with Bartonella spp may cause cardiac arrhythmias, myocarditis and endocarditis in humans. The aim of the present study was to evaluate a possible association between Bartonella spp bacteremia and endocarditis, arrhythmia and Chagas cardiomyopathy in patients from Brazil and Argentina. We screened for the presence of bacterial 16S rRNA in human blood by PCR using oligonucleotides to amplify a 185-bp bacterial DNA fragment. Blood samples were taken from four groups of subjects in Brazil and Argentina: i) control patients without clinical disease, ii) patients with negative blood-culture endocarditis, iii) patients with arrhythmias, and iv) patients with chronic Chagas cardiomyopathy. PCR products were analyzed on 1.5% agarose gel to visualize the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Human; PCR; Bartonella spp; Chagas disease; Endocarditis; Arrhythmia. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2012000700012 |
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| Camplesi,Annelise Carla; Bellodi,Carolina; Socha,José Javier Mesa; Hatayde,Mário Roberto; Sobreira,Márcia Ferreira da Rosa; Araujo,Gustavo Henrique Marques; Araujo,Carla Fredrichsen Moya. |
| ABSTRACT: Nerium oleander is distributed worldwide, mainly in tropical and subtropical regions. These shrubs are frequently used as ornamental plants. However, they contain more than 30 cardiac glycosides that can cause serious toxic effects in dogs. The objective of this study was to report the clinical and electrocardiographic alterations in dogs experimentally poisoned with N. oleander. Ten adult, healthy, mixed-breed dogs weighing 10-25kg and aged 3-6 years were selected for the study. We orally administered 0.25g kg-1 of fresh ground leaves of N. oleander to the dogs. No dog died after the ingestion, but all exhibited signs of poisoning such as vomiting, sialorrhea, nausea, apathy, conjunctiva congestion, dehydration, abdominal pain, tremors,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Blood pressure; Arrhythmia; Electrocardiography; Cardiac glycosides; Canine. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000600553 |
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| MACKENZIE,LAUREN; RODERICK,H. LLEWELYN; PROVEN,ANDREW; CONWAY,STUART J; BOOTMAN,MARTIN D. |
| Inositol 1,4,5-trisphosphate (InsP3) is an established calcium-mobilizing messenger, which is well-known to activate Ca2+ signaling in many cell types. Contractile cardiomyocytes express hormone receptors that are coupled to the production of InsP3. Such cardioactive hormones, including endothelin, may have profound inotropic and arrhythmogenic actions, but it is unclear whether InsP3 underlies any of these effects. We have examined the expression and localization of InsP3 receptors (InsP3Rs), and the potential role of InsP3 in modulating cardiac excitation-contraction coupling (EC coupling). Stimulation of electrically-paced atrial and ventricular myocytes with a membrane-permeant InsP3 ester was found to evoke an increase in the amplitudes of action... |
| Tipo: Journal article |
Palavras-chave: Calcium; Cardiac; Inositol; Arrhythmia; Ryanodine. |
| Ano: 2004 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602004000400008 |
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