Relationship between increased arterial stiffness and other markers of target organ damage
2009; Elsevier BV; Volume: 134; Issue: 12 Linguagem: Inglês
10.1016/j.medcli.2009.09.042
ISSN1578-8989
AutoresEnrique Rodilla, José A. Costa, Francisco Pérez-Lahiguera, Carmen González, José M. Pascual,
Tópico(s)Diabetes, Cardiovascular Risks, and Lipoproteins
ResumoThe purpose of the present study was to assess the relationship of arterial stiffness with other markers of target organ damage, and the clinical factors related to it. Cross-sectional study that included 208 (115 men) never treated hypertensive, non-diabetic patients (mean age, 49±12 years). In addition to a full clinical study, 24 h ambulatory blood pressure (BP), and determination of left ventricular hypertrophy (LVH) and microalbuminuria were performed. Clinical arterial stiffness was assessed by carotid–femoral pulse wave velocity (PWV) obtained with applanation tonometry (SphygmoCor-System). PWV was 8.3 (7.3–9.9) m/s (median, interquartile range). Stepwise regression analysis revealed that age (β=0.086, p<0.001), 24-h pulse pressure (β=0.058, p<0.001), and low-density lipoprotein (LDL) cholesterol (β=0.009, p 12 m/s (indicating target organ lesion) was present in only 16 (7.7%) patients, less frequent than LVH (28% of the patients) and microalbuminuria (16%). However, of the 16 patients with elevated PWV, 10 (62%) had neither LVH or microalbuminuria. In a logistic multivariate regression analysis the factors related to elevated PWV were age ≥45 in man and ≥55 in women (OR: 23.8, 95% CI: 2.7–195.5; p=0.004), LDL cholesterol ≥160 mg/dl (OR: 10.6, 95% CI: 2.6–42.7; p=0.001) and increased 24-h pulse pressure ≥55 mmHg (OR: 3.9, 95% CI: 1.2–12.9; p=0.03). In untreated middle age hypertensives arterial stiffness assessed by PWV is less frequent than LVH or microalbuminuria. PWV is mainly related to age, LDL cholesterol, and pulse pressure values. Valorar los factores relacionados con el incremento de la rigidez arterial como indicador de lesión subclínica. Estudio transversal en 208 sujetos (115 varones) hipertensos, no diabéticos, sin tratamiento. Se determinaron la presión arterial (PA) en 24 h, la hipertrofia ventricular izquierda (HVI) por ecocardiografía y la microalbuminuria. La rigidez arterial se valoró como velocidad de onda de pulso (VOP) carótida-femoral en m/s, por tonometría de aplanamiento (SphygmoCor-System). La VOP fue de 8,3 (7,3–9,9) m/s (mediana, rango interquartílico) y se relacionó en un análisis de regresión múltiple con la edad (β=0,086, p<0,001), presión de pulso de 24 horas (β=0,058, p<0,001) y colesterol LDL (β=0,009, p 12 m/s se evidenciaron sólo en 16 (7,7%) pacientes, y fue menos frecuente que la HVI (28%) y la microalbuminuria (16%). Sin embargo, de los 16 pacientes con VOP elevada, diez (62%) no tenían otra lesión subclínica asociada. En un análisis multivariante de regresión logística, los factores relacionados con una VOP elevada fueron: la edad ≥45 en varones y ≥55 en mujeres (OR:23,8, 95% IC, 2,7–195,5; p=0,004), colesterol-LDL ≥160 mg/dl (OR:10,6, 95% IC, 2,6–42,7; p=0,001) y presión de pulso 24 horas ≥55 mmHg (OR:3,9, 95% IC, 1,2–12,9; p=0,03). En sujetos hipertensos no tratados la rigidez arterial medida como VOP es menos frecuente que la HVI o microalbuminuria y se relaciona con la edad, colesterol-LDL y presión de pulso.
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