Myocardium
Mostrando 25-36 de 916 artigos, teses e dissertações.
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25. Myocardial Viability: From PARR-2 to IMAGE HF - Current Evidence and Future Directions
Abstract Ischemic heart failure is a growing disease with high morbidity and mortality. Several studies suggest the benefit of viability imaging to assist revascularization decision, but there is controversy. Multiple imaging modalities can be used to accurately define hibernating myocardium; however, the best approach remains uncertain. This review will hig
Int. J. Cardiovasc. Sci.. Publicado em: 06/09/2018
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26. Vascular endothelial growth factor association with angiopoietin 1 promotes improvement in ventricular function after ischemic cardiomyopathy induced in mini pigs
Abstract Purpose: To investigate the safety and clinical, hemodynamic and tissue improvement ability in mini pigs undergoing cell and gene therapy for the treatment of acute myocardial infarction. Methods: Thirty-two mini pigs Br1 lineage, 12 months old, undergoing induction of acute myocardial infarction by occlusion of the diagonal branch of the paracona
Acta Cir. Bras.. Publicado em: 2018-04
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27. Protective effect of dexmedetomidine against myocardial ischemia-reperfusion injury in rabbits
Abstract Purpose: To investigate the influence of dexmedetomidine on myocardial ischemia-reperfusion injury (IRI) in rabbits. Methods: Twenty-four New Zealand white rabbits were randomly divided into two equal-sized groups: IRI group (group IR) and dexmedetomidine group (group D). Systolic blood pressure (SBP), diastolic blood pressure (DBP), heart rate
Acta Cir. Bras.. Publicado em: 2018-01
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28. Occult Metastatic Melanoma Presenting as an Acute Coronary Syndrome
Abstract Melanoma is a tumor that virtually involves any tissue and commonly metastasizes to the heart. It is usually not diagnosed because of the absent/nonspecific cardiac signs and symptoms. Herein, we present a case of a 41-year-old man without any cardiovascular risk factor, admitted to the emergency room with chest pain, diagnosed with a myocardial inf
Braz. J. Cardiovasc. Surg.. Publicado em: 2017-06
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29. A New Experimental Device for Transapical Access of the Aortic and Mitral Valves as well as the Aorta in its Various Segments
Abstract Objective: To present the results of a new experimental device developed to facilitate the transapical access in endovascular treatment of structural heart diseases. It aims to reduce the risk of bleeding and complications in this type of access and demonstrate the device as a safe, fast and effective alternative. Methods: CorPoint is composed of
Braz. J. Cardiovasc. Surg.. Publicado em: 2017-06
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30. Sexual transmission of American trypanosomiasis in humans: a new potential pandemic route for Chagas parasites
BACKGROUND The Trypanosoma cruzi infection endemic in Latin America has now spread to several countries across four continents; this endemic involves triatomine vector-free protists. We hypothesised that the sexual transmission of T. cruzi contributes to the ongoing spread of Chagas disease. OBJECTIVES A short-term longitudinal study was conducted to eva
Mem. Inst. Oswaldo Cruz. Publicado em: 2017-06
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31. Development of a Multifunctional Needle for Percutaneous Heart Biopsy and Cell Therapy. A Technical Note
Abstract Validation of transendocardial injection as a method for delivering therapeutic agents to the diseased heart is increasing. Puncture heart biopsies should re-emerge as a possible alternative method to allow access to the myocardium and implantable biomaterial for cell therapy. Therefore, this work aims to present a percutaneous puncture device for b
Braz. J. Cardiovasc. Surg.. Publicado em: 2016-12
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32. Intraperitoneal Administration of Silymarin Protects End Organs from Multivisceral Ischemia/Reperfusion Injury in a Rat Model
Abstract Objective: To determine whether intraperitoneal silymarin administration has favorable effects on the heart, lungs, kidney, and liver and on oxidative stress in a rat model of supraceliac aorta ischemia/reperfusion injury. Methods: Thirty male Wistar albino rats were divided equally into three groups: sham, control, and silymarin. The control and
Braz. J. Cardiovasc. Surg.. Publicado em: 2016-12
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33. Thyroxine increases Serca2 and Ryr2 gene expression in heart failure rats with euthyroid sick syndrome
ABSTRACT Objective The current study was aimed at analyzing sarcoplasmic reticulum Ca2+ ATPase (Serca2) and ryanodine receptor type 2 (Ryr2) gene expression in rats subjected to surgery that induced HF and were subsequently treated with T4 using physiological doses. Materials and methods HF was induced in 18 male Wistar rats by clipping the ascending tho
Arch. Endocrinol. Metab.. Publicado em: 10/10/2016
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34. Previous exercise training increases levels of PPAR-α in long-term post-myocardial infarction in rats, which is correlated with better inflammatory response
OBJECTIVE: Exercise is a protective factor for cardiovascular morbidity and mortality, with unclear mechanisms. Changing the myocardial metabolism causes harmful consequences for heart function and exercise contributes to metabolic adjustment modulation. Peroxisome proliferator-activated receptors (PPARs) are also myocardium metabolism regulators capable of
Clinics. Publicado em: 2016-03
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35. Borage oil attenuates progression of cardiac remodeling in rats after myocardial infarction
ABSTRACT PURPOSE: To investigate the effects of Borage oil on cardiac remodeling after myocardial infarction (MI). METHODS: Male Wistar rats underwent ligation of the left coronary artery and divided into three groups: MI (control), BO-18 (18 mg/kg of borage oil) and BO-180 (180 mg/kg of borage oil). After seven days, heart was arrested in diastole and pr
Acta Cir. Bras.. Publicado em: 2016-03
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36. Clinical update on scorpion envenoming
Abstract: Scorpion stings are currently the leading cause of venom-related injury to humans in Brazil and are a significant public health problem globally. Only scorpions of the Tityus genus are of medical importance in Brazil, and Tityus serrulatus is responsible for the most serious envenomations and deaths. The toxic effects of scorpion envenomation are d
Rev. Soc. Bras. Med. Trop.. Publicado em: 2015-12