Myocardial Perfusion
Mostrando 13-24 de 256 artigos, teses e dissertações.
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13. Single Photon Computed Tomography-Myocardial Perfusion Scintigraphy. Diagnostic Tool Anticipating the Disease
Arq. Bras. Cardiol.. Publicado em: 2019-02
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14. Lactate-upregulation of lactate oxidation complex-related genes is blunted in left ventricle of myocardial infarcted rats
Lactate modulates the expression of lactate oxidation complex (LOC)-related genes and cardiac blood flow under physiological conditions, but its modulatory role remains to be elucidated regarding pathological cardiac stress. The present study evaluated the effect of lactate on LOC-related genes expression and hemodynamics of hearts submitted to myocardial in
Braz J Med Biol Res. Publicado em: 04/10/2018
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15. Interleukin-6 contributes to myocardial damage in pregnant rats with reduced uterine perfusion pressure
Preeclampsia is one of the most frequent and difficult illnesses in pregnancy, which jeopardizes both mother and fetus. There are several diagnostic criteria for preeclampsia. However, the preeclampsia-associated myocardial damage has not been described. In this study, we employed reduced uterine perfusion pressure (RUPP) to generate a rat model of preeclamp
Braz J Med Biol Res. Publicado em: 11/06/2018
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16. Lidocaine and Pinacidil Added to Blood versus Crystalloid Cardioplegic Solutions: Study in Isolated Hearts
Abstract Objective: The present study aimed the functional recovery evaluation after long term of cardiac arrest induced by Custodiol (crystalloid-based) versus del Nido (blood-based) solutions, both added lidocaine and pinacidil as cardioplegic agents. Experiments were performed in isolated rat heart perfusion models. Methods: Male rat heart perfusions, a
Braz. J. Cardiovasc. Surg.. Publicado em: 2018-06
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17. Histidine-tryptophan-ketoglutarate solution decreases mortality and morbidity in high-risk patients with severe pulmonary arterial hypertension associated with complex congenital heart disease: an 11-year experience from a single institution
Cardioplegic reperfusion during a long term ischemic period interrupts cardiac surgery and also increases cellular edema due to repeated solution administration. We reviewed the clinical experiences on myocardial protection of a single perfusion with histidine-tryptophan-ketoglutarate (HTK) for high-risk patients with severe pulmonary arterial hypertension a
Braz J Med Biol Res. Publicado em: 13/05/2016
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18. Screening for asymptomatic coronary artery disease in patients with type 2 diabetes mellitus
ABSTRACT Diabetes is a very frequent disease and it is estimated that its prevalence will continuously increase during the next two decades. The arteriosclerotic process in diabetic patients progresses earlier and more diffusely, and it is more accelerated in the diabetic patient than in the overall population. In diabetic subjects, acute myocardial infarcti
Arch. Endocrinol. Metab.. Publicado em: 2016-04
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19. 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
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20. Myocardial blood flow assessment with 82rubidium-PET imaging in patients with left bundle branch block
OBJECTIVES: Perfusion abnormalities are frequently seen in Single Photon Emission Computed Tomography (SPECT) when a left bundle branch block is present. A few studies have shown decreased coronary flow reserve in the left anterior descending territory, regardless of the presence of coronary artery disease. OBJECTIVE: We sought to investigate rubidium-82 (
Clinics. Publicado em: 2015-11
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21. Heart and systemic effects of statin pretreatment in a rat model of abdominal sepsis. Assessment by Tc99m-sestamibi biodistribition
PURPOSE:To evaluate the heart and the Tc-99m-sestamibi biodistribution after statin pretreatment in a rat model of abdominal sepsis.METHODS:Twenty-four Wistar rats were randomly distributed into four groups (n=6 per group): 1) sepsis with simvastatin treatment, 2) sepsis with vehicle, 3) sham control with simvastatin and 4) sham control with vehicle. 24 hour
Acta Cir. Bras.. Publicado em: 2015-06
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22. Role of mitochondrial ATP-sensitive potassium channel-mediated PKC-ε in delayed protection against myocardial ischemia/reperfusion injury in isolated hearts of sevoflurane-preconditioned rats
This study aimed to determine the role of mitochondrial adenosine triphosphate-sensitive potassium (mitoKATP) channels and protein kinase C (PKC)-ε in the delayed protective effects of sevoflurane preconditioning using Langendorff isolated heart perfusion models. Fifty-four isolated perfused rat hearts were randomly divided into 6 groups (n=9)
Braz J Med Biol Res. Publicado em: 27/03/2015
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23. Valor prognóstico da reserva de fluxo coronário e miocárdico obtida pela ecocardiografia contrastada em pacientes com cardiomiopatia dilatada de origem não isquêmica / Prognostic value of coronary and myocardial flow reserve obtained by contrast echocardiography in patients with nonischemic dilated cardiomyopathy
Apesar dos avanços no entendimento da fisiopatologia e dos recursos terapêuticos atualmente disponíveis, a cardiomiopatia dilatada (CMD) permanece como uma condição com alta mortalidade, sendo que a disfunção microvascular é um dos mecanismos relacionados à piora da função cardíaca. Nos últimos anos, novas técnicas de ecocardiografia vêm sendo
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/05/2012
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24. Angiografia coronariana e perfusão miocárdica de estresse por tomografia computadorizada de 64 colunas de detectores na avaliação luminal intra-stent / Coronary angiography and stress myocardial perfusion by 64-row computed tomography in evaluation of stents
A angiografia coronariana por tomografia computadorizada (ACTC) é um exame bem estabelecido no diagnóstico da doença arterial coronariana. Entretanto, segmentos coronarianos submetidos a implante de stent podem apresentar limitação na avaliação luminal. O objetivo deste estudo é avaliar o valor adicional da perfusão miocárdica por tomografia comput
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 09/02/2012