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Rev. méd. Chile ; 138(12): 1495-1501, dic. 2010. tab
Article in English | LILACS | ID: lil-583045

ABSTRACT

Background: Body weight mayinfluence liver size. Aim: To determine the correlation between clinical and ultrasound evaluation of the liver size according to body mass index (BMI). Material and Methods: A cross-sectional study of 81 subjects aged 25 ± 6 years (43 females). Two percussion measurements were taken and u-trasonography was performed on the same site demarcated by percussion. Results: Mean BMI was 23 ± 4 kg/m². Nineteen individuals (23.5 percent) had a BMI ≥ 25 kg/m². There was a significant difference between the values of liver size obtained by clinical and ultrasound methods. The correlation coeffcient between the liver size obtained by clinical and ultrasound methods was 0.419 (p < 0.01). No significant differences in liver size were observed, between subjects with a BMI below or over 25 kg/m². In all subjects, regardless of BMI, there was a statistically significant difference between the mean sizes obtained by both methods. The correlation coeffcients between both methods in subjects with a BMI ≤ 25 Kg/m² and their counterparts with higher BMI were 0.47 and 0.03, respectively. Conclusions: There are significant differences in liver size obtained by clinical examination and ultrasound. Only in subjects with BMI ≤ 25 kg/m², the correlation between the two techniques is significant.


Introducción: El peso corporal puede tener influencia sobre el tamaño del hígado. Objetivo: Determinar el tamaño del hígado mediante examen físico y ultrasonido en sujetos con distinto índice de masa corporal (IMC). Material y Métodos: Estudio transversal de 81 individuos de 25 ± 6 años (43 mujeres). Se tomaron dos medidas del hígado por percusión y la ultrasonografía se efectuó en el mismo sitio marcado por la percusión. Resultados: El IMC promedio de los individuos fue de 23 ± 4 kg/m². Diecinueve sujetos (23,5 por ciento) tenían un IMC ≤ 25 kg/m². Se observaron diferencias significativas entre las mediciones obtenidas por examen físico y ultrasonografía en todos los sujetos, no importando el valor de IMC. No se observaron diferencias en el tamaño del hígado entre sujetos con un IMC menor o mayor a 25 kg/m². Los coeficientes de correlación entre los dos métodos en sujetos con un IMC ≤ 25 kg/m² y aquellos con valores más altos fueron 0,47 y 0,03, respectivamente. Conclusiones: Las mediciones clínicas y ultrasonográficas del tamaño del hígado diferen signifcativamente. Sólo en sujetos con un IMC ≤ 25 kg/m², ambas mediciones tienen una correlación significativa.


Subject(s)
Adult , Female , Humans , Male , Body Height/physiology , Body Mass Index , Liver/anatomy & histology , Liver , Physical Examination/methods , Cross-Sectional Studies , Organ Size/physiology
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