Exceso de mineralocorticoides en hipertensos esenciales: enfoque clínico-diagnóstico

Background: Primary hyperaldosteronism is more frequent among subjects with essential hypertension than previously thought. The prevalence, according to local and international evidence could fluctuate between 9 and 10%. Aim: To investigate if subjects with essential hypertension have different aldo...

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Autores principales: Cortés P,Paola, Fardella B,Carlos, Oestreicher C,Eveline, Gac E,Homero, Mosso G,Lorena, Soto M,Julia, Foradori C,Arnaldo, Claverie R,Ximena, Ahuad N,Jessica, Montero L,Joaquín
Lenguaje:Spanish / Castilian
Publicado: Sociedad Médica de Santiago 2000
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Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872000000900001
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spelling oai:scielo:S0034-988720000009000012005-11-15Exceso de mineralocorticoides en hipertensos esenciales: enfoque clínico-diagnósticoCortés P,PaolaFardella B,CarlosOestreicher C,EvelineGac E,HomeroMosso G,LorenaSoto M,JuliaForadori C,ArnaldoClaverie R,XimenaAhuad N,JessicaMontero L,Joaquín Aldosterone Hyperaldosteronism Hypertension Background: Primary hyperaldosteronism is more frequent among subjects with essential hypertension than previously thought. The prevalence, according to local and international evidence could fluctuate between 9 and 10%. Aim: To investigate if subjects with essential hypertension have different aldosterone and renin plasma levels than normotensive subjects. Patients and methods: One hundred twenty five subjects with essential hypertension, not receiving medications for at least two weeks prior to the study and 168 age and sex matched normotensive controls were studied. Blood was drawn between 9 and 10 AM during a sodium free diet to determine plasma aldosterone, plasma renin activity and potassium. Results: Plasma aldosterone was higher in hypertensive subjects than controls (11.6 ± 7.6 and 9.9 ± 5.1 ng/dl respectively; p=0.04). Plasma renin activity was lower in hypertensives than controls (1.42 ± 1.28 and 1.88 ± 1.39 ng/ml/h respectively; p<0.001). Thus, plasma aldosterone/plasma renin activity ratio was higher in hypertensives (13.8 ± 13.5 and 8.3 ± 7.8; p<0.001). A pathological ratio was defined as over 25, corresponding to the mean plus two standard deviations of the control group. Primary hyperaldosteronism was found in 5/125 hypertensives (4%) and 1/168 normotensive subject (0.6%). None had hypokalemia. Conclusions: Subjects with essential hypertension have higher plasma aldosterone and lower plasma renin activity than normal controls. A plasma aldosterone/plasma renin activity over 25 was defined as abnormal. (Rev Méd Chile 2000; 128: 955-61)info:eu-repo/semantics/openAccessSociedad Médica de SantiagoRevista médica de Chile v.128 n.9 20002000-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872000000900001es10.4067/S0034-98872000000900001
institution Scielo Chile
collection Scielo Chile
language Spanish / Castilian
topic Aldosterone
Hyperaldosteronism
Hypertension
spellingShingle Aldosterone
Hyperaldosteronism
Hypertension
Cortés P,Paola
Fardella B,Carlos
Oestreicher C,Eveline
Gac E,Homero
Mosso G,Lorena
Soto M,Julia
Foradori C,Arnaldo
Claverie R,Ximena
Ahuad N,Jessica
Montero L,Joaquín
Exceso de mineralocorticoides en hipertensos esenciales: enfoque clínico-diagnóstico
description Background: Primary hyperaldosteronism is more frequent among subjects with essential hypertension than previously thought. The prevalence, according to local and international evidence could fluctuate between 9 and 10%. Aim: To investigate if subjects with essential hypertension have different aldosterone and renin plasma levels than normotensive subjects. Patients and methods: One hundred twenty five subjects with essential hypertension, not receiving medications for at least two weeks prior to the study and 168 age and sex matched normotensive controls were studied. Blood was drawn between 9 and 10 AM during a sodium free diet to determine plasma aldosterone, plasma renin activity and potassium. Results: Plasma aldosterone was higher in hypertensive subjects than controls (11.6 ± 7.6 and 9.9 ± 5.1 ng/dl respectively; p=0.04). Plasma renin activity was lower in hypertensives than controls (1.42 ± 1.28 and 1.88 ± 1.39 ng/ml/h respectively; p<0.001). Thus, plasma aldosterone/plasma renin activity ratio was higher in hypertensives (13.8 ± 13.5 and 8.3 ± 7.8; p<0.001). A pathological ratio was defined as over 25, corresponding to the mean plus two standard deviations of the control group. Primary hyperaldosteronism was found in 5/125 hypertensives (4%) and 1/168 normotensive subject (0.6%). None had hypokalemia. Conclusions: Subjects with essential hypertension have higher plasma aldosterone and lower plasma renin activity than normal controls. A plasma aldosterone/plasma renin activity over 25 was defined as abnormal. (Rev Méd Chile 2000; 128: 955-61)
author Cortés P,Paola
Fardella B,Carlos
Oestreicher C,Eveline
Gac E,Homero
Mosso G,Lorena
Soto M,Julia
Foradori C,Arnaldo
Claverie R,Ximena
Ahuad N,Jessica
Montero L,Joaquín
author_facet Cortés P,Paola
Fardella B,Carlos
Oestreicher C,Eveline
Gac E,Homero
Mosso G,Lorena
Soto M,Julia
Foradori C,Arnaldo
Claverie R,Ximena
Ahuad N,Jessica
Montero L,Joaquín
author_sort Cortés P,Paola
title Exceso de mineralocorticoides en hipertensos esenciales: enfoque clínico-diagnóstico
title_short Exceso de mineralocorticoides en hipertensos esenciales: enfoque clínico-diagnóstico
title_full Exceso de mineralocorticoides en hipertensos esenciales: enfoque clínico-diagnóstico
title_fullStr Exceso de mineralocorticoides en hipertensos esenciales: enfoque clínico-diagnóstico
title_full_unstemmed Exceso de mineralocorticoides en hipertensos esenciales: enfoque clínico-diagnóstico
title_sort exceso de mineralocorticoides en hipertensos esenciales: enfoque clínico-diagnóstico
publisher Sociedad Médica de Santiago
publishDate 2000
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872000000900001
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