La cuantificación no invasiva del estrés parietal sistólico del ventrículo izquierdo en pacientes con insuficiencia cardíaca y su aplicación clínica / Non invasive quantification of the parietal systolic stress of the left ventricle in patients with heart failure and its clinical application
Arch. cardiol. Méx
; Arch. cardiol. Méx;77(2): 120-129, abr.-jun. 2007. tab, graf
Article
em Es
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| ID: lil-566702
Biblioteca responsável:
BR1.1
ABSTRACT
The purpose of this study is to calculate non invasivelly left ventricular systolic wall stress by echocardiography in patients with primary heart failure, and compare the results with those obtained in parients with overloaded heart failure, diastolic dysfunction by Inapropiatte hypertrophy, with normal ejection fraction and people with normal heart, there stablish the value of the results in clinical settings. We studied 33 patients with heart failure by dilated cardiomyopathy. There was no significant association between the systolic wall stress and the ejection fraction, fractional shortening, dp/dt or left ventricular mass in this group of study. There was a significant association between systolic h/r ratio and the systolic wall stress. This study shows that in primary heart failure the afterload increases and has inverse relationship with ejection fraction (r = 0.86); but, when heart failure obey to an excessive overload exists an exquisite inverse relationship between systolic wall stress and ejection fraction (r = 0.93). The excessive hypertrophy (Inappropriate) reduces the systolic wall stress but causes diastolic dysfunction. The increase of systolic wall stress in Aortic regurgitation with normal ventricular performance is responsible of adequate left ventricular hypertrophy, by other means, in mitral insufficiency the presence of low or normal systolic wall The purpose of this study is to calculate non invasivelly left ventricular systolic wall stress by echocardiography in patients with primary heart failure, and compare the results with those obtained in parients with overloaded heart failure, diastolic dysfunction by Inapropiatte hypertrophy, with normal ejection fraction and people with normal heart, there stablish the value of the results in clinical settings. We studied 33 patients with heart failure by dilated cardiomyopathy. There was no significant association between the systolic wall stress and the ejection fraction, fractional shortening, dp/dt or left ventricular mass in this group of study. There was a significant association between systolic h/r ratio and the systolic wall stress. This study shows that in primary heart failure the afterload increases and has inverse relationship with ejection fraction (r = 0.86); but, when heart failure obey to an excessive overload exists an exquisite inverse relationship between systolic wall stress and ejection fraction (r = 0.93). The excessive hypertrophy (Inappropriate) reduces the...
Texto completo:
1
Coleções:
01-internacional
Base de dados:
LILACS
Assunto principal:
Insuficiência Cardíaca Sistólica
Tipo de estudo:
Observational_studies
/
Risk_factors_studies
/
Systematic_reviews
Limite:
Female
/
Humans
/
Male
Idioma:
Es
Revista:
Arch. cardiol. Méx
Assunto da revista:
CARDIOLOGIA
Ano de publicação:
2007
Tipo de documento:
Article
País de afiliação:
México
País de publicação:
México