Cardiomiopatia hipertensiva em cães com leishmaniose visceral
Carregando...
Arquivos
Data
2013-02-20
Autores
Martinez Padua, Pedro Pablo [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
Universidade Estadual Paulista (Unesp)
Resumo
A leishmaniose visceral (LV) é uma doença multissistêmica. Em cães com LV, poucos estudos mencionam os mecanismos fisiopatológicos que levam a quadros de hipertensão arterial, e também não são bem esclarecidas às consequências da hipertensão sistêmica sobre a função miocárdica de cães acometidos pela doença. Entretanto, sabe-se que um dos principais órgãos a serem acometidos são os rins, e quando comprometidos, são desenvolvidos mecanismos fisiopatológicos que levam a quadros de hipertensão arterial de origem renal. Desta forma, a presente investigação científica teve como objetivo, avaliar os efeitos da pressão arterial sobre a estrutura e função cardíaca de cães com LV. Para tanto, foram avaliados 43 cães com LV entre 5 e 14 Kg, estratificados pelos valores de pressão arterial sistólica (PAS) em três grupos. Dezenove (19) cães com valores de PAS até 129 mmHg formaram o G1, 12 cães com valores de PAS entre 130 e 159 mmHg formaram o G2, e 12 cães com valores de PAS acima de 160 mmHg formaram o G3. Os cães foram diagnosticados para LV por meio de punção biopsia aspirativa de linfonodo e medula óssea. Após confirmação diagnóstica, foram submetidos a exames laboratoriais, físicos, radiográficos de tórax, eletrocardiográficos, ecodopplercardiográficos, mensuração da PAS, determinação das concentrações séricas da aldosterona, troponina I, desidrogenase láctica 1 (LDH1), creatina quinase fração MB (CK-MB), e renina plasmática, relação proteína creatinina urinaria (UP/C), e avaliação histopatológica do miocárdio. Os cães do G3 apresentaram hipertrofia concêntrica do ventrículo esquerdo, aumento nos parâmetros de disfunção diastólica relativos à índice de Tei e índice de relaxamento isovolumétrico, além de aumento significativo das concentrações da aldosterona, Renina...
Visceral leishmaniasis (VL) is a multisystem disease. In dogs with VL, few studies mention the pathophysiological mechanisms leading to hypertension frames, and are not well clarified the consequences of systemic hypertension on myocardial function in dogs affected by the disease. However, it is known that one of the major organs to be affected are the kidneys, and when compromised, are developed pathophysiological mechanisms that lead to conditions of hypertension from renal origin. Thus, the present research aimed to assess the effects of systolic blood pressure on the cardiac structure and function of dogs with VL. Therefore, we studied 43 dogs with VL and stratified by the values of systolic blood pressure (SBP) in three groups. 19 dogs with SBP to 129 mmHg shaped the G1, 12 dogs with SBP between 130 and 159 mmHg shaped the G2, and 12 with SBP above 160 mmHg shaped the G3. The dogs were diagnosed for LV by aspiration biopsy of lymph node and bone marrow. After confirming the diagnosis, underwent laboratory exams, physical, chest radiographic , electrocardiographic, Doppler echocardiographic measurement of SBP, determination of serum aldosterone, troponin I, lactate dehydrogenase 1 (LDH1), creatine kinase MB fraction (CK-MB) and plasma renin, urinary creatinine ratio protein (UP / C), and histopathological evaluations of myocardium. G3 Dogs showed concentric left ventricular hypertrophy, increase in parameters of diastolic dysfunction on the Tei index and index of isovolumetric relaxation, and significant increase of concentrations of aldosterone, renin, CKMB and Troponin I. As for the evaluation of renal function G3 dogs showed increased of serum concentrations of calcium, phosphorus, magnesium, urea, and increased fractional excretion of sodium and UP / C. The results indicate... (Complete abstract click electronic access below)
Visceral leishmaniasis (VL) is a multisystem disease. In dogs with VL, few studies mention the pathophysiological mechanisms leading to hypertension frames, and are not well clarified the consequences of systemic hypertension on myocardial function in dogs affected by the disease. However, it is known that one of the major organs to be affected are the kidneys, and when compromised, are developed pathophysiological mechanisms that lead to conditions of hypertension from renal origin. Thus, the present research aimed to assess the effects of systolic blood pressure on the cardiac structure and function of dogs with VL. Therefore, we studied 43 dogs with VL and stratified by the values of systolic blood pressure (SBP) in three groups. 19 dogs with SBP to 129 mmHg shaped the G1, 12 dogs with SBP between 130 and 159 mmHg shaped the G2, and 12 with SBP above 160 mmHg shaped the G3. The dogs were diagnosed for LV by aspiration biopsy of lymph node and bone marrow. After confirming the diagnosis, underwent laboratory exams, physical, chest radiographic , electrocardiographic, Doppler echocardiographic measurement of SBP, determination of serum aldosterone, troponin I, lactate dehydrogenase 1 (LDH1), creatine kinase MB fraction (CK-MB) and plasma renin, urinary creatinine ratio protein (UP / C), and histopathological evaluations of myocardium. G3 Dogs showed concentric left ventricular hypertrophy, increase in parameters of diastolic dysfunction on the Tei index and index of isovolumetric relaxation, and significant increase of concentrations of aldosterone, renin, CKMB and Troponin I. As for the evaluation of renal function G3 dogs showed increased of serum concentrations of calcium, phosphorus, magnesium, urea, and increased fractional excretion of sodium and UP / C. The results indicate... (Complete abstract click electronic access below)
Descrição
Palavras-chave
Cão, Coração, Rins - Doenças, Eletrólitos, Excreção, Leishmaniose visceral, Electrolytes
Como citar
MARTINEZ PADUA, Pedro Pablo. Cardiomiopatia hipertensiva em cães com leishmaniose visceral. 2013. xi, 68 p. Tese (doutorado) - Universidade Estadual Paulista Júlio de Mesquita Filho, Faculdade de Ciências Agrárias e Veterinárias, 2013.