643 resultados para prolapso da valva mitral


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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Pós-graduação em Ginecologia, Obstetrícia e Mastologia - FMB

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Descreve-se um surto de tétano em búfalos da raça Murrah em uma propriedade situada no município de São Caetano de Odivelas, localizado na região metropolitana de Belém, estado do Pará. Do rebanho de 250 bubalinos, 80 animais foram vacinados contra raiva por via intramuscular na região da garupa. Em um período de 15 a 19 dias após a vacinação quatro animais adoeceram, um morreu com dois dias de evolução, um foi eutanasiado in extremis no sétimo dia após o início dos sinais clínicos e os demais se recuperaram após tratamento. Nos bubalinos, o primeiro sinal clínico observado foi o prolapso da terceira pálpebra, em especial quando o animal era estimulado, seguido por andar rígido, manifestado por dificuldade de flexão dos membros e permanência em decúbito lateral com os membros estendidos, pálpebras muito abertas, sialorréia, hiperexcitabilidade, orelhas eretas, leve trismo e acúmulo de alimento na cavidade oral. À necropsia foi evidenciada uma área de coloração amarelada com presença de exsudação purulenta na musculatura da região da garupa, local de aplicação da vacina. Ao exame histopatológico não foram evidenciadas alterações significativas. Em dois animais foi realizado tratamento com penicilina por via intramuscular e soro antitetânico por via intramuscular e sub-aracnóide; após duas semanas esses animais se recuperaram. Diante do quadro clínico, dos dados epidemiológicos e da ausência de lesões histológicas foi feito o diagnóstico de tétano. Concluiu-se que o tétano é uma doença a ser considerada na bubalinocultura no Brasil. A infecção, provavelmente ocorreu durante o procedimento de vacinação, através injeções intramusculares utilizando agulhas contaminadas.

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Resultados obtidos por cálculos Dirac-Fock correlacionados de 4 componentes para o fluoreto do elemento E119 (Eka-Frâncio) com base estável e precisa, livre de prolapso variacional, são reportados neste trabalho. No nível CCSD(T), a distância de equilíbrio Re, frequência harmônica ωe e energia de dissociação De são 2,432 Å, 354,97 cm-1 e 116,92 kcal mol-1, respectivamente. Também são reportados base livre de prolapso variacional de 4 componentes para o elemento 119, uma curva analítica de energia potencial precisa e o espectro vibracional a partir dos dados obtidos no nível CCSD(T). Nossos resultados sugerem que a molécula E119F deva ser menos iônica que seus fluoretos alcalinos homólogos mais leves, em contraste com o senso químico comum baseado nas propriedades periódicas - era de se esperar nesta molécula a ligação química mais iônica possível. Também encontramos que a correção do tipo modelo de carga para negligenciar as integrais do tipo SS resulta em erros insignificantes e acelera os cálculos cerca de 3 vezes no nível CCSD(T) e cerca de 4 vezes no nível DFT/B3LYP.

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This paper describes the occurrence of cor triatriatum sinister, a rare cardiac malformation in dogs, associated with pulmonary edema and pulmonary hypertension in a 5-year-old Poodle female with history of acute dyspnea and cyanosis. The animal presented acute respiratory failure, heart failure with low cardiac output, progressing to acute tubular necrosis and death. The diagnosis was made posmortem due to the clinical instability of the dog. This malformation was diagnosed by the subdivision of the left atrium into two compartments separated by an abnormal fibromuscular membrane, absence of structural abnormalities of the mitral valve and thickening of pulmonary artery tunica media associated with renal tubular degeneration. The occurrence of cor triatriatum in dogs is most common in the right atrium, defined as cor triatriatum dexter. Additionally, pulmonary arterial hypertension associated with this malformation is described only in humans with this heart defect.

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Endocarditis is a type of infection that is common in internal medicine wards and in haemodialysis clinics. The location that is most affected are the heart valves. Herein, we report a case of an uncommon abscess, a sub-endothelial abscess between the transition of the superior vena cava and the right atrium. There were several emboli to the lung and foot, and the agent was related to Staphylococcus aureus and a double-lumen catheter. Usually, this type of abscess is located in valves, either the tricuspid valve if related to catheters or injection drug use or the mitral valve if related to other causes. An exhaustive review was made, but we found no information about the location of this abscess and the rarity of the event motivating the report of infection.

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Hepatitis C virus (HCV) infection represents an important public health problem worldwide. Reduction of HCV morbidity and mortality is a current challenge owned to several viral and host factors. Virus molecular evolution plays an important role in HCV transmission, disease progression and therapy outcome. The high degree of genetic heterogeneity characteristic of HCV is a key element for the rapid adaptation of the intrahost viral population to different selection pressures (e.g., host immune responses and antiviral therapy). HCV molecular evolution is shaped by different mechanisms including a high mutation rate, genetic bottlenecks, genetic drift, recombination, temporal variations and compartmentalization. These evolutionary processes constantly rearrange the composition of the HCV intrahost population in a staging manner. Remarkable advances in the understanding of the molecular mechanism controlling HCV replication have facilitated the development of a plethora of direct-acting antiviral agents against HCV. As a result, superior sustained viral responses have been attained. The rapidly evolving field of anti-HCV therapy is expected to broad its landscape even further with newer, more potent antivirals, bringing us one step closer to the interferon-free era. (C) 2014 Baishideng Publishing Group Inc. All rights reserved.

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Hypertrophic cardiomyopathy (HCM) is the most common heart disease in the feline specie, more frequently affecting pure-breed males such as Ragdolls and Maine Coons. HCM can be primary (idiopathic) or secondary, when other diseases such as hyperthyroidism are involved. The disease is characterized by an increase in the diameter and thickness of the left ventricular wall, with consequent diastolic dysfunction. Mitral regurgitation happens due to compromised ventricular filling, leading to an increased left atrium size and consequent cardiogenic pulmonary edema. Along with the progress of modern veterinary medicine, many diseases could be addressed more successfully on small animal internal medicine, such as feline HCM. This article brings a literature review of the feline hypertrophic cardiomyopathy, focusing on its etiology, physiopathology, clinical presentations, diagnostic methods, therapeutics and prognosis

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Infective endocarditis is a process in which an infection attacks the heart endothelial surface, and is commonly caused by bacterial colonization, which is called bacterial endocarditis. It is a condition rarely found in dogs and cats, and is more prevalent in male dogs of large size. It mainly affects the left side of the heart, affecting the mitral and aortic valves with greater frequency. The circulation of the bacterium in the bloodstream is what gives rise endocarditis, and is caused by any non-aseptic process that serves as a gateway for bacterium in the body, as from a skin lesion, even as an invasive procedure, such as, catheterization and surgery. The ante-mortem diagnosis is difficult because the clinical signs of endocarditis are varied and common to other diseases, summing up the signs of infection (fever, lethargy, weight loss), and presence of heart murmur and may show signs of congestive heart failure. Thus, the diagnosis is most often through autopsy. To arrive at a diagnosis should be used, besides the history and physical examination, some laboratory tests, especially blood cultures and echocardiography. Treatment is accomplished through the use of antibiotics for long period of time, it is very important to follow the results of susceptibility after its outcome is revealed. The prognosis for bacterial endocarditis ranges from guarded to poor, and can be assessed mainly by the echocardiography. There are few studies in veterinary about the bacterial endocarditis, and the majority is case reports