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Rev. cuba. med ; 46(3)jul.-sep. 2007. tab
Artigo em Espanhol | LILACS | ID: lil-499583

RESUMO

La prevalencia de osteoporosis en pacientes con lupus eritematoso sistémico (LES) no es bien conocida. Se realizó un estudio de cohorte que incluyó, 96 pacientes con LES y un grupo control de 96 mujeres, aparentemente sanas, pareadas con las pacientes por edad y color de piel, para identificar la frecuencia con que se presenta la misma en pacientes mujeres premenopáusicas con esta enfermedad e identificar algunos de los factores de riesgo asociados a su presencia. A los 2 grupos se les recogieron datos demográficos y en las enfermas además se precisaron exposición a hábitos tóxicos como cigarro, café y alcohol, edad al diagnóstico, tiempo de evolución de la enfermedad y medicamentos utilizados. Tanto a pacientes como controles se les realizó una densitometría por medio de un osteosonómetro de calcáneo y se clasificaron en normales, osteopénicas u osteoporóticas. Se relacionó la presencia de osteoporosis con las variables consideradas. Se observó osteoporosis en 10 de las 96 pacientes (10,4 por ciento) y en 1 sola mujer del grupo control, la diferencia fue estadísticamente significativa (p = 0,005). El riego relativo de tenerla es 10 veces mayor en las enfermas que en los controles, se relacionó de forma significativa con su presencia, el mayor tiempo de evolución (p = 0,04) y la dosis acumulada de glucocorticoides (p = 0,008), factores de riesgo como el consumo de alcohol, café y hábito de fumar no se asociaron con la presencia de osteoporosis. Se concluyó que la osteoporosis se presenta en las pacientes con LES y la dosis acumulada de glucocorticoides se asocia con su presencia.


The prevalence of osteoporosis en patients with systemic lupus erythematosus (SLE) is not well known. A cohort study including 96 patients with SLE and a control group of 96 apparently sound women, matched with the patients by skin colour and sex, was conducted to identify its frequency in premenopausal women with this disease and to know some of the risk factors associated with its presence. Demographic data were collected in the 2 groups and the presence of toxic habits, such as alcohol, coffee and cigarettes, the age on diagnosis, the time of evolution of the disease and the drugs used were determined among the sick. Patients and controls underwent a densitometry by means of a calcaneus osteosonometer, and they were classified into normal, osteopenic and osteoporotic. The presence of osteoporosis was related to the variables considered. It was observed osteoporosis in 10 of the 96 patients (10.4 percent) and in only one woman of the control group. The difference was statistically significant (p = 0.005). The relative risk of having it is ten times higher in the sick than in the controls, and it has a significant connection with its presence, the longer time of evolution (p = 0.04) and the accumulated dose of glucocorticoids (p = 0.008). Risk factors as the consumption of alcohol, coffee and smoking were not associated with the presence of osteoporosis. It was concluded that osteoporosis appears in patients with SEL and that the accumulated dose o glucocorticoids is associated with its presence.


Assuntos
Humanos , Feminino , Densitometria/métodos , Lúpus Eritematoso Sistêmico/complicações , Osteoporose/epidemiologia
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