2015
DOI: 10.5935/abc.20150042
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Left Atrial Volume Determinants in Patients with Non-Ischemic Dilated Cardiomyopathy

Abstract: BackgroundLeft atrial volume (LAV) is a predictor of prognosis in patients with heart failure.ObjectiveWe aimed to evaluate the determinants of LAV in patients with dilated cardiomyopathy (DCM).MethodsNinety patients with DCM and left ventricular (LV) ejection fraction ≤ 0.50 were included. LAV was measured with real-time three-dimensional echocardiography (eco3D). The variables evaluated were heart rate, systolic blood pressure, LV end-diastolic volume and end-systolic volume and ejection fraction (eco3D), mi… Show more

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Cited by 8 publications
(11 citation statements)
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“…The left atrium (LA) plays an important role in the development of many heart diseases, and its size and function are closely correlated with various cardiovascular events . The mitral valve ring moves downward during left ventricular (LV) systole, and the LA is directly affected by LV pressure during the entire diastole.…”
Section: Introductionmentioning
confidence: 99%
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“…The left atrium (LA) plays an important role in the development of many heart diseases, and its size and function are closely correlated with various cardiovascular events . The mitral valve ring moves downward during left ventricular (LV) systole, and the LA is directly affected by LV pressure during the entire diastole.…”
Section: Introductionmentioning
confidence: 99%
“…T he left atrium (LA) plays an important role in the development of many heart diseases, and its size and function are closely correlated with various cardiovascular events. [1][2][3][4][5] The mitral valve ring moves downward during left ventricular (LV) systole, and the LA is directly affected by LV pressure during the entire diastole. LV systolic and diastolic functions are both impaired in patients with ischemic dilated cardiomyopathy (ICM) and idiopathic dilated cardiomyopathy (DCM).…”
Section: Introductionmentioning
confidence: 99%
“…O desempenho do AE promove o enchimento e a função do VE, atuando como uma bomba contrátil acessória, sendo responsável por 15 a 30 % de todo suprimento sanguíneo ventricular esquerdo e servindo ainda de reservatório de sangue oxigenado que flui dos pulmões (BOUZAS-MOSQUERA et al, 2011;LANG et al, 2015;MANCUSO et al, 2015).…”
Section: Características Clinicas Variáveis Ecocardiográficas E Eletunclassified
“…A dilatação do AE está relacionada ao funcionamento inadequado da valva mitral, às disfunções diastólicas e sistólicas do VE, à presença de miocardiopatias como, por exemplo, a chagásica. Os valores do diâmetro do AE superiores aos parâmetros de normalidade (34,0 ± 4,0 mm) são reforçados como preditores de DCV, de alterações valvares, fibrilação atrial e associado a outros fatores de risco (idade, disfunção ventricular) infere-se um pior prognóstico para a IC (MANCUSO et al, 2015). Em relação aos diâmetros máximos tidos como padrão de normalidade para o VE (sistólico 32,4±3,7 para homens e 28,2±3,3 para mulheres; diastólico 50,2±4,1 em homens e 45,0±3,6 em mulheres), no estudo foram encontrados valores superiores mostrando estágios mais avançados de IC.…”
Section: Características Clinicas Variáveis Ecocardiográficas E Eletunclassified
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