Excreção urinaria de proteinas em pacientes hipertensos e sua correlação com hipertrofia ventricular esquerda e monitoramento ambulatorial da pressão arterial

AUTOR(ES)
DATA DE PUBLICAÇÃO

2001

RESUMO

The urinary protein excretion profile (UPE) and its relationship with left ventricular hypertrophy (LVH) and 24-hour Ambulatory Monitoring Blood Pressure (AMBP) was evaluated in fifty-three adult hypertensives patients divided in Group I: 30 subjects under therapy and Group II: 24 newly diagnosed individuals without therapy. Urinary creatinine ratios of microalbumin and alpha-1-microglobulin were determined in random urine samples. Serum lipids and creatinine were measured. Qualitative changes in the UPE profiles were observed in 29% of the patients of Group I and in 17% of Group II. Microalbumin was the major excreted protein (23% Group I vs. 13% Group II). Alpha-1-microglobulin was presented in both groups (6% vs. 4%). No difference between levels of microalbumin and alpha-1-microglobulin was observed within groups. Dislipidemia was seen in 70% of the patients but without correlating with microalbuminuria. Group I presented a correlation between LDL-cholesterol and microalbuminuria. LVH was higher in Group I, showing a correlation with microalbuminuria. In Group II significant differences within patients with and without HVE and the mean systolic 24 hour period or ambulatory systolic blood pressure load were seen. Group I showed higher nighttime ambulatory BP and nighttime BP load. No correlation between microalbuminuria and AMBP was observed in both Groups. In conclusion, in our population, qualitative changes in the UPE profile are frequent in both treated and untreated hypertensives subjects. Microalbuminuria is a marker of LVH, independent of BP. The early detection of renal damage by non-invasive methods may permit a careful and non aggressive follow-up of these individuals. The urinary protein excretion profile (UPE) and its relationship with left ventricular hypertrophy (LVH) and 24-hour Ambulatory Monitoring Blood Pressure (AMBP) was evaluated in fifty-three adult hypertensives patients divided in Group I: 30 subjects under therapy and Group II: 24 newly diagnosed individuals without therapy. Urinary creatinine ratios of microalbumin and alpha-1-microglobulin were determined in random urine samples. Serum lipids and creatinine were measured. Qualitative changes in the UPE profiles were observed in 29% of the patients of Group I and in 17% of Group II. Microalbumin was the major excreted protein (23% Group I vs. 13% Group II). Alpha-1-microglobulin was presented in both groups (6% vs. 4%). No difference between levels of microalbumin and alpha-1-microglobulin was observed within groups. Dislipidemia was seen in 70% of the patients but without correlating with microalbuminuria. Group I presented a correlation between LDL-cholesterol and microalbuminuria. LVH was higher in Group I, showing a correlation with microalbuminuria. In Group II significant differences within patients with and without HVE and the mean systolic 24 hour period or ambulatory systolic blood pressure load were seen. Group I showed higher nighttime ambulatory BP and nighttime BP load. No correlation between microalbuminuria and AMBP was observed in both Groups. In conclusion, in our population, qualitative changes in the UPE profile are frequent in both treated and untreated hypertensives subjects. Microalbuminuria is a marker of LVH, independent of BP. The early detection of renal damage by non-invasive methods may permit a careful and non aggressive follow-up of these individuals

ASSUNTO(S)

hipertensão ecocardiografia coração - ventriculo esquerdo albuminuria

ACESSO AO ARTIGO

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