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Increased Aortic Stiffness is Associated with Increased Left Ventricular Mass and Diastolic Dysfunction
Korean Circulation Journal ; : 525-532, 2005.
Artigo em Coreano | WPRIM | ID: wpr-220833
ABSTRACT
BACKGROUND AND

OBJECTIVES:

Stiffening of the aorta is a potential risk factor for increased cardiovascular morbidity and mortality. Increased aortic stiffness can be associated with an increased left ventricular (LV) mass and diastolic dysfunction. The aim of the study was to evaluate the relationship of the aortic stiffness to the LV hypertrophy (LVH) and diastolic dysfunction. SUBJECTS AND

METHODS:

A total of 188 consecutive patients, without overt cardiovascular disease or symptoms, were included. The LV mass and diastolic filling patterns were assessed. The aortic strain and distensibility were indirectly obtained from the aortic diameters, using echocardiography and blood pressure measurements.

RESULTS:

Of the 188 patients (92 males, 54+/-14 years old), hypertension was found in 57 and diabetes in 29, with both found in 32 patients. The aortic strain (3.77+/-2.42 vs. 5.13+/-4.27, p<0.001) and distensibility (0.11+/-0.09 vs. 0.22+/-0.21, p<0.001) were significantly lower, but the LV mass index (112.5+/-39.2 vs. 87.8+/-19.0 gm/m2, p<0.001) higher, in the hypertensive compared to normotensive patients. Also, the aortic strain (3.07+/-2.42 vs. 5.18+/-4.01, p<0.001) and distensibility (0.10+/-0.12 vs. 0.21+/-0.20, p<0.001) were lower in patients with LVH. The E/E' ratio was higher in the hypertensive patients (10.9+/-5.0 vs. 8.1+/-3.1, p<0.001) and in those with LVH (10.8+/-5.6 vs. 8.4+/-3.2, p<0.001). In a multivariate analysis, the parameters closely related with aortic strain were age (standardized coefficient beta=-0.240, p=0.001), LV mass index (beta=-0.158, p=0.025) and IVRT (beta=-0.155, p=0.035). The parameters significantly related with aortic distensibility were age (beta=-0.344, p<0.001) and LV mass index (beta=-0.224, p=0.001).

CONCLUSION:

Increased aortic stiffness is associated with an increased LV mass and diastolic abnormality.
Assuntos

Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Assunto principal: Aorta / Pressão Sanguínea / Ecocardiografia / Doenças Cardiovasculares / Análise Multivariada / Fatores de Risco / Mortalidade / Hipertrofia Ventricular Esquerda / Rigidez Vascular / Hipertensão Tipo de estudo: Estudo de etiologia / Estudo prognóstico / Fatores de risco Limite: Humanos / Masculino Idioma: Coreano Revista: Korean Circulation Journal Ano de publicação: 2005 Tipo de documento: Artigo

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Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Assunto principal: Aorta / Pressão Sanguínea / Ecocardiografia / Doenças Cardiovasculares / Análise Multivariada / Fatores de Risco / Mortalidade / Hipertrofia Ventricular Esquerda / Rigidez Vascular / Hipertensão Tipo de estudo: Estudo de etiologia / Estudo prognóstico / Fatores de risco Limite: Humanos / Masculino Idioma: Coreano Revista: Korean Circulation Journal Ano de publicação: 2005 Tipo de documento: Artigo