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Myocardial creatine metabolism in experimental infarction and heart failure /Lindbom, Malin, January 2007 (has links)
Diss. (sammanfattning) Göteborg : Univ. , 2007. / Härtill 5 uppsatser.
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Evaluation of isovolumic myocardial motions in human subjects using tissue velocity echocardiography /Lind, Britta, January 2006 (has links)
Diss. (sammanfattning) Stockholm : Karol. inst., 2006. / Härtill 5 uppsatser.
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A clinical evaluation of non-invasive techniques for monitoring myocardial function and a model proposal for cardio-pulmonary evaluation a research report submitted in partial fulfillment ... /Masud, Marie. Cramer, Sachiko. January 1979 (has links)
Thesis (M.S.)--University of Michigan, 1979.
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A clinical evaluation of non-invasive techniques for monitoring myocardial function and a model proposal for cardio-pulmonary evaluation a research report submitted in partial fulfillment ... /Masud, Marie. Cramer, Sachiko. January 1979 (has links)
Thesis (M.S.)--University of Michigan, 1979.
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Noninvasive evaluation of the effects of coronary artery bypass grafting on myocardial function /Hedman, Anders, January 2006 (has links)
Diss. (sammanfattning) Stockholm : Karolinska institutet, 2006. / Härtill 4 uppsatser.
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Transoesophageal and transthoracic recordings of mitral annulus motion /Nilsson, Bo, January 2006 (has links)
Diss. (sammanfattning) Stockholm : Karol. inst., 2006. / Härtill 4 uppsatser.
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Annular dynamics of the human heart : novel echocardiographic approaches to assess ventricular function /Carlhäll, Carljohan, January 2004 (has links) (PDF)
Diss. Linköping : Linköpings universitet, 2004.
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Beta 1 and Alpha 2C adrenergic receptor polymorphisms and response to beta blockers in heart failure patients /Zolty, Ronald. January 2007 (has links)
Thesis (Ph.D. in Clinical Science) -- University of Colorado Denver, 2007. / Typescript. Includes bibliographical references (leaves 130-142). Free to UCD affiliates. Online version available via ProQuest Digital Dissertations;
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Estudo ecocardiográfico da função ventricular esquerda em pacientes com lúpus eritematoso sistêmico juvenil através da técnica de Speckle-Tracking bidimensional / Left ventricular function in childhood-onset systemic lupus erythematosus: a two-dimensional speckle-tracking echocardiographic studyLeal, Gabriela Nunes 04 April 2016 (has links)
Objetivo: O principal propósito do estudo foi pesquisar a disfunção ventricular esquerda subclínica em pacientes com lúpus eritematoso sistêmico juvenil (LESJ) através da técnica de speckle-tracking bidimensional. Foi investigada ainda uma possível correlação entre o comprometimento da deformação miocárdica e o SLEDAI-2K (Systemic Lupus Erithematosus Disease Activity Index 2000), bem como a presença de fatores de risco cardiovascular, tanto tradicionais como ligados à doença. Métodos: 50 pacientes assintomáticos do ponto de vista cardiovascular e 50 controles saudáveis (14,74 vs. 14,82 anos, p=0.83) foram avaliados pelo ecocardiograma convencional e pelo speckle-tracking bidimensional. Resultados: Apesar da fração de ejeção normal, os pacientes apresentaram redução de todos os parâmetros de deformação miocárdica longitudinal e radial, quando comparados aos controles: strain de pico sistólico longitudinal [-20,3 (-11 a -26) vs. -22 (-17,8 a -30.4) %, p < 0,0001], strain rate de pico sistólico longitudinal [-1,19 ± 0,21 vs. -1,3 ± 0,25 s-1, p=0,0005], strain rate longitudinal na diástole precoce [1,7 (0,99 a 2,95) vs. 2 (1,08 a 3,00) s-1 , p=0,0034], strain de pico sistólico radial [33,09 ± 8,6 vs. 44,36 ± 8,72%, p < 0,0001], strain rate de pico sistólico radial [1,98 ± 0,53 vs. 2,49 ± 0,68 s-1, p < 0,0001] e strain rate radial na diástole precoce [-2,31 ± 0,88 vs. -2,75 ± 0,97 s-1, p=0,02]. O strain de pico sistólico circunferencial [-23,67 ± 3,46 vs. - 24,6 ± 2,86%, p=0,43] e o strain rate circunferencial na diástole precoce [2 (0,88 a 3,4) vs. 1,99 (1,19 a 3,7) s-1, p=0,88] foram semelhantes em pacientes e controles. Apenas o strain rate de pico sistólico circunferencial [-1,5 ± 0,3 vs. -1,6 ± 0,3 s-1, p=0,036] mostrou-se reduzido no LESJ. Uma correlação negativa foi identificada entre o strain de pico sistólico longitudinal e o SLEDAI-2K (r = - 0,52; p < 0,0001) e também o número de fatores de risco cardiovascular por paciente (r = -0,32, p=0,024). Conclusões: Foi evidenciada disfunção sistólica e diastólica subclínica de ventrículo esquerdo no LESJ através da técnica de speckle-tracking bidimensional. A atividade da doença e a exposição aos fatores de risco cardiovascular provavelmente contribuíram para o comprometimento da deformação miocárdica nesses pacientes / Objectives: The main purpose of the study was to investigate left ventricular (LV) subclinical systolic and diastolic dysfunction in childhood-onset systemic lupus erythematosus (c-SLE) patients using two-dimensional speckletracking (2DST) echocardiography. We also interrogated possible correlations between impairment of myocardial deformation and the SLE Disease Activity Index 2000 (SLEDAI-2K), as well as the presence of traditional and disease-related cardiovascular risk factors (CRFs). Method: A total of 50 asymptomatic patients and 50 controls (age 14.74 vs. 14.82 years, p = 0.83) were evaluated by standard and 2DST echocardiography. Results: Despite a normal ejection fraction (EF), there was reduction in all parameters of LV longitudinal and radial deformation in patients compared to controls: peak longitudinal systolic strain [-20.3 (-11 to -26) vs. -22 (-17.8 to -30.4)%, p < 0.0001], peak longitudinal systolic strain rate [-1.19 ± 0.21 vs. -1.3 ± 0.25 s-1, p = 0.0005], longitudinal strain rate in early diastole [1.7 (0.99-2.95) vs. 2 (1.08-3.00) s-1, p = 0.0034], peak radial systolic strain [33.09 ± 8.6 vs. 44.36 ± 8.72%, p < 0.0001], peak radial systolic strain rate [1.98 ± 0.53 vs. 2.49 ± 0.68 s-1, p < 0.0001], and radial strain rate in early diastole [-2.31 ± 0.88 vs. -2.75 ± 0.97 s-1, p = 0.02]. Peak circumferential systolic strain [- 23.67 ± 3.46 vs. -24.6 ± 2.86%, p=0.43] and circumferential strain in early diastole [2 (0,88 a 3,4) vs. 1,99 (1,19 a 3,7) s-1, p=0.88 ] were similar between patients and controls, although peak circumferential systolic strain rate [-1.5 ± 0.3 vs. -1.6 ± 0.3 s-1, p = 0.036] was reduced in c-SLE. Further analysis of patients revealed a negative correlation between LV peak longitudinal systolic strain and SLEDAI-2K(r= -0.52, p < 0.0001) and also between LV PLSS and the number of CRFs per patient (r = -0.32, p = 0.024). Conclusions: 2DST echocardiography has identified subclinical LV deformation impairment in c-SLE patients. Disease activity and cumulative exposure to CRFs contribute to myocardial compromise
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Estudo ecocardiográfico da função ventricular esquerda em pacientes com lúpus eritematoso sistêmico juvenil através da técnica de Speckle-Tracking bidimensional / Left ventricular function in childhood-onset systemic lupus erythematosus: a two-dimensional speckle-tracking echocardiographic studyGabriela Nunes Leal 04 April 2016 (has links)
Objetivo: O principal propósito do estudo foi pesquisar a disfunção ventricular esquerda subclínica em pacientes com lúpus eritematoso sistêmico juvenil (LESJ) através da técnica de speckle-tracking bidimensional. Foi investigada ainda uma possível correlação entre o comprometimento da deformação miocárdica e o SLEDAI-2K (Systemic Lupus Erithematosus Disease Activity Index 2000), bem como a presença de fatores de risco cardiovascular, tanto tradicionais como ligados à doença. Métodos: 50 pacientes assintomáticos do ponto de vista cardiovascular e 50 controles saudáveis (14,74 vs. 14,82 anos, p=0.83) foram avaliados pelo ecocardiograma convencional e pelo speckle-tracking bidimensional. Resultados: Apesar da fração de ejeção normal, os pacientes apresentaram redução de todos os parâmetros de deformação miocárdica longitudinal e radial, quando comparados aos controles: strain de pico sistólico longitudinal [-20,3 (-11 a -26) vs. -22 (-17,8 a -30.4) %, p < 0,0001], strain rate de pico sistólico longitudinal [-1,19 ± 0,21 vs. -1,3 ± 0,25 s-1, p=0,0005], strain rate longitudinal na diástole precoce [1,7 (0,99 a 2,95) vs. 2 (1,08 a 3,00) s-1 , p=0,0034], strain de pico sistólico radial [33,09 ± 8,6 vs. 44,36 ± 8,72%, p < 0,0001], strain rate de pico sistólico radial [1,98 ± 0,53 vs. 2,49 ± 0,68 s-1, p < 0,0001] e strain rate radial na diástole precoce [-2,31 ± 0,88 vs. -2,75 ± 0,97 s-1, p=0,02]. O strain de pico sistólico circunferencial [-23,67 ± 3,46 vs. - 24,6 ± 2,86%, p=0,43] e o strain rate circunferencial na diástole precoce [2 (0,88 a 3,4) vs. 1,99 (1,19 a 3,7) s-1, p=0,88] foram semelhantes em pacientes e controles. Apenas o strain rate de pico sistólico circunferencial [-1,5 ± 0,3 vs. -1,6 ± 0,3 s-1, p=0,036] mostrou-se reduzido no LESJ. Uma correlação negativa foi identificada entre o strain de pico sistólico longitudinal e o SLEDAI-2K (r = - 0,52; p < 0,0001) e também o número de fatores de risco cardiovascular por paciente (r = -0,32, p=0,024). Conclusões: Foi evidenciada disfunção sistólica e diastólica subclínica de ventrículo esquerdo no LESJ através da técnica de speckle-tracking bidimensional. A atividade da doença e a exposição aos fatores de risco cardiovascular provavelmente contribuíram para o comprometimento da deformação miocárdica nesses pacientes / Objectives: The main purpose of the study was to investigate left ventricular (LV) subclinical systolic and diastolic dysfunction in childhood-onset systemic lupus erythematosus (c-SLE) patients using two-dimensional speckletracking (2DST) echocardiography. We also interrogated possible correlations between impairment of myocardial deformation and the SLE Disease Activity Index 2000 (SLEDAI-2K), as well as the presence of traditional and disease-related cardiovascular risk factors (CRFs). Method: A total of 50 asymptomatic patients and 50 controls (age 14.74 vs. 14.82 years, p = 0.83) were evaluated by standard and 2DST echocardiography. Results: Despite a normal ejection fraction (EF), there was reduction in all parameters of LV longitudinal and radial deformation in patients compared to controls: peak longitudinal systolic strain [-20.3 (-11 to -26) vs. -22 (-17.8 to -30.4)%, p < 0.0001], peak longitudinal systolic strain rate [-1.19 ± 0.21 vs. -1.3 ± 0.25 s-1, p = 0.0005], longitudinal strain rate in early diastole [1.7 (0.99-2.95) vs. 2 (1.08-3.00) s-1, p = 0.0034], peak radial systolic strain [33.09 ± 8.6 vs. 44.36 ± 8.72%, p < 0.0001], peak radial systolic strain rate [1.98 ± 0.53 vs. 2.49 ± 0.68 s-1, p < 0.0001], and radial strain rate in early diastole [-2.31 ± 0.88 vs. -2.75 ± 0.97 s-1, p = 0.02]. Peak circumferential systolic strain [- 23.67 ± 3.46 vs. -24.6 ± 2.86%, p=0.43] and circumferential strain in early diastole [2 (0,88 a 3,4) vs. 1,99 (1,19 a 3,7) s-1, p=0.88 ] were similar between patients and controls, although peak circumferential systolic strain rate [-1.5 ± 0.3 vs. -1.6 ± 0.3 s-1, p = 0.036] was reduced in c-SLE. Further analysis of patients revealed a negative correlation between LV peak longitudinal systolic strain and SLEDAI-2K(r= -0.52, p < 0.0001) and also between LV PLSS and the number of CRFs per patient (r = -0.32, p = 0.024). Conclusions: 2DST echocardiography has identified subclinical LV deformation impairment in c-SLE patients. Disease activity and cumulative exposure to CRFs contribute to myocardial compromise
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