Myocardial Ischemia
Mostrando 13-24 de 399 artigos, teses e dissertações.
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13. Hepatic Elastography in the Assessment of Heart Failure: Where We Came from and Where We Are Going
Abstract Background: Stress test is used to detect coronary artery disease (CAD). The QTc interval dispersion (dQTc) is an electrocardiographic index of ventricular repolarization heterogeneity. Some researchers have linked transient myocardial ischemia induced by physical exertion with increased heterogeneity of ventricular repolarization measured by dQTc.
Int. J. Cardiovasc. Sci.. Publicado em: 2020-05
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14. QT Interval Dispersion Behavior in Patients With and Without Obstructive Coronary Artery Disease Undergoing Exercise Test
Abstract Background: Stress test is used to detect coronary artery disease (CAD). The QTc interval dispersion (dQTc) is an electrocardiographic index of ventricular repolarization heterogeneity. Some researchers have linked transient myocardial ischemia induced by physical exertion with increased heterogeneity of ventricular repolarization measured by dQTc.
Int. J. Cardiovasc. Sci.. Publicado em: 2020-05
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15. Quantification of Myocardial Ischemia: Comparison between Myocardial SPECT and 13NH3 PET/TC
Abstract Background: The Advanced Cardiac Life Support (ACLS) course is designed to teach cardiovascular emergency, aiming to promote a harmonious and synchronized work of the entire hospital team, making the multidisciplinary job more effective in the execution of cardiopulmonary resuscitation (CPR). Objective: To compare the effectiveness of CPR performe
Int. J. Cardiovasc. Sci.. Publicado em: 2020-04
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16. COVID-19: GENERAL GUIDELINES FOR CARDIOVASCULAR SURGEONS (standard guidelines - subject to change)
Abstract Objective: To compare the in-hospital outcomes of a right-sided anterolateral minithoracotomy with those of median sternotomy in patients who received a mitral valve replacement (MVR) because of rheumatic mitral valve stenosis (RMS). Methods: This is a retrospective analysis of 128 patients (34% male) with RMS between 2011 and 2015. The median age
Braz. J. Cardiovasc. Surg.. Publicado em: 2020-04
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17. Minithoracotomy vs. Conventional Mitral Valve Surgery for Rheumatic Mitral Valve Stenosis: a Single-Center Analysis of 128 Patients
Abstract Objective: To compare the in-hospital outcomes of a right-sided anterolateral minithoracotomy with those of median sternotomy in patients who received a mitral valve replacement (MVR) because of rheumatic mitral valve stenosis (RMS). Methods: This is a retrospective analysis of 128 patients (34% male) with RMS between 2011 and 2015. The median age
Braz. J. Cardiovasc. Surg.. Publicado em: 2020-04
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18. GDF11 ameliorated myocardial ischemia reperfusion injury by antioxidant stress and up-regulating autophagy in STZ-induced type 1 diabetic rats
Abstract Purpose: To investigate whether GDF11 ameliorates myocardial ischemia reperfusion (MIR) injury in diabetic rats and explore the underlying mechanisms. Methods: Diabetic and non-diabetic rats subjected to MIR (30 min of coronary artery occlusion followed by 120 min of reperfusion) with/without GDF11 pretreatment. Cardiac function, myocardial infarc
Acta Cir. Bras.. Publicado em: 13/01/2020
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19. Biochanin A attenuates myocardial ischemia/reperfusion injury through the TLR4/NF-κB/NLRP3 signaling pathway
Abstract Purpose: Myocardial ischemia/reperfusion (Ml/R) injury is a leading cause of damage in cardiac tissues, with high rates of mortality and disability. Biochanin A (BCA) is a main constituent of Trifolium pratense L. This study was intended to explore the effect of BCA on Ml/R injury and explore the potential mechanism. Methods: In vivo MI/R injury w
Acta Cir. Bras.. Publicado em: 20/12/2019
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20. Cardioprotection of Rosuvastatin Pre-conditioning on Myocardial Ischemia / Reperfusion Injury in a Rat Model
Abstract This study aimed to investigate the cardioprotection of rosuvastatin pre-conditioning (R-Pre) in a rat model of myocardial ischemia / reperfusion (I/R). Male SD rats were assigned into three groups: sham group, I/R group and R-Pre group. Rats in I/R group and R-Pre group received ischemia for 30 min and reperfusion for 2 h. In R-Pre group, rats rec
Braz. arch. biol. technol.. Publicado em: 25/11/2019
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21. Euterpe Oleracea Mart. (Açaí) Reduces Oxidative Stress and Improves Energetic Metabolism in Myocardial Ischemia-Reperfusion Injury in Rats
Resumo Fundamento: Euterpe oleracea Mart. (açaí) é uma fruta com alta capacidade antioxidante e pode ser uma estratégia adjuvante para atenuar a lesão de isquemia-reperfusão. Objetivo: Avaliar a influência do açaí no modelo global de isquemia-reperfusão em ratos. Metodologia: Ratos Wistar foram divididos em 2 grupos: Controle (C: recebendo raçã
Arq. Bras. Cardiol.. Publicado em: 14/11/2019
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22. Evaluation of Myocardial Perfusion by Computed Tomography - Principles, Technical Background and Recommendations
Resumo A angiografia coronariana por tomografia computadorizada (ACTC) assumiu um papel de destaque na avaliação da doença arterial coronariana. Entretanto, sua natureza anatômica não permitia a avaliação da repercussão funcional das obstruções coronarianas. Recentemente, tornou-se possível a avaliação da perfusão miocárdica por tomografia com
Arq. Bras. Cardiol.. Publicado em: 04/11/2019
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23. Late cardiac perconditioning by phenylephrine in an isolated rat heart model is mediated by mitochondrial potassium channels
The present study was designed to investigate the effect of early and late administration of phenylephrine during ischemia against regional ischemia-reperfusion injuries in an isolated rat heart model. All animals were randomly divided into experimental groups: (I) IR (Ischemic/ reperfusion): the hearts underwent 35 min of regional ischemia followed by 60 mi
Braz. J. Pharm. Sci.. Publicado em: 24/10/2019
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24. Effect of miR-134 against myocardial hypoxia/reoxygenation injury by directly targeting NOS3 and regulating PI3K/Akt pathway
Abstract Purpose To reveal the function of miR-134 in myocardial ischemia. Methods Real-time PCR and western blotting were performed to measure the expression of miR-134, nitric oxide synthase 3 (NOS3) and apoptotic-associated proteins. Lactic dehydrogenase (LDH) assay, cell counting kit-8 (CCK-8), Hoechst 33342/PI double staining and flow cytometry assay
Acta Cir. Bras.. Publicado em: 14/10/2019