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        "resumen" => "<span class="elsevierStyleSectionTitle">Objetivo</span><p class="elsevierStyleSimplePara elsevierViewall">Identificar manifestaciones cl&#237;nicas y de laboratorio &#250;tiles para el diagn&#243;stico temprano del dengue en los ni&#241;os&#46;</p> <span class="elsevierStyleSectionTitle">Materiales y m&#233;todos</span><p class="elsevierStyleSimplePara elsevierViewall">Se evaluaron 125 ni&#241;os &#40;de 5 a 12 a&#241;os&#41; con s&#237;ndrome febril agudo de etiolog&#237;a inaparente&#46; Mediante pruebas serol&#243;gicas pareadas y&#47;o cultivo viral&#44; se confirm&#243; la infecci&#243;n por el virus dengue en 40 pacientes y se descart&#243; en 68 &#40;17 indefinidos&#41;&#46; Se compararon las manifestaciones cl&#237;nicas tempranas &#40;de los primeros 4 d&#237;as de enfermedad&#41; de los grupos con dengue y con otras causas del s&#237;ndrome febril&#44; y se determinaron los indicadores independientes de dengue en un an&#225;lisis multivariado de regresi&#243;n log&#237;stica&#46;</p> <span class="elsevierStyleSectionTitle">Resultados</span><p class="elsevierStyleSimplePara elsevierViewall">Considerando las manifestaciones cl&#237;nicas y el hemograma&#44; los indicadores independientes de dengue fueron&#58; la ausencia de rinorrea&#44; el eritema facial y alg&#250;n recuento de leucocitos &#8804; 4&#46;500&#47;&#956;1&#46; Con al menos dos de estos hallazgos se obtiene una sensibilidad del 67&#44;5 &#37; y una especificidad de 72&#44;1 &#37; para el diagn&#243;stico de dengue&#46; Incluyendo las pruebas de coagulaci&#243;n&#44; se obtiene un modelo diagn&#243;stico conformado por&#58; ausencia de rinorrea&#44; leucocitos &#8804; 4&#46;500&#47;&#956;1&#44; tiempo de protrombina &#62; 14 s y tiempoparcial de tromboplastina &#62; 29 s&#46; Con dos de estos hallazgos se sugiere el diagn&#243;stico de dengue con una sensibilidad del 90 &#37; y una especificidad del 52&#44;9 &#37;&#46; Con al menos tres hallazgos&#44; la especificidad aumentar&#237;a al 89&#44;7 &#37; y la sensibilidad disminuir&#237;a al 50 &#37;&#46; La presencia de los cuatro componentes de este &#250;ltimo modelo muestra una especificidad del 100 &#37;&#46;</p> <span class="elsevierStyleSectionTitle">Conclusiones</span><p class="elsevierStyleSimplePara elsevierViewall">Algunas manifestaciones cl&#237;nicas y pruebas de laboratorio simples podr&#237;an ayudar a detectar tempranamente el dengue en los ni&#241;os&#46;</p>"
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        "resumen" => "<span class="elsevierStyleSectionTitle">Objective</span><p class="elsevierStyleSimplePara elsevierViewall">To identify clinical manifestations and laboratory findings useful for the early diagnosis of dengue in children&#46;</p> <span class="elsevierStyleSectionTitle">Materials and methods</span><p class="elsevierStyleSimplePara elsevierViewall">We prospectively evaluated 125 children &#40;aged 5 to 12 years old&#41; with acute febrile syndrome with no apparent etiology&#46; Paired serologic tests and&#47;or viral culture were performed and dengue infection was confirmed in 40 patients and ruled out in 68 &#40;17 indefinite cases&#41;&#46; Early clinical manifestations &#40;within the first 4 days of the disease&#41; in the groups with dengue and other causes of febrile syndrome were compared&#46; Independent indicators of dengue were determined in a multivariate logistic regression analysis&#46;</p> <span class="elsevierStyleSectionTitle">Results</span><p class="elsevierStyleSimplePara elsevierViewall">When clinical manifestations and complete blood count were considered&#44; the independent indicators of dengue were&#58; absence of nasal discharge&#44; facial flushing&#44; and leukocyte count &#8804; 4&#44;500&#47;&#956;l&#46; With at least two of these findings&#44; a sensitivity of 67 &#37; and a specificity of 72 &#37; for the diagnosis of dengue were obtained&#46; When coagulation tests were considered&#44; a model for diagnosis was composed of&#58; absence of nasal discharge&#44; leukocyte count &#8804; 4500&#47;&#956;l&#44; prothrombin time &#62; 14 seconds&#44; and partial thromboplastin time &#62; 29 seconds&#46; Two of these findings suggested a diagnosis of dengue with a sensitivity of 90 &#37; and a specificity of 52&#46;9 &#37;&#46; With at least 3 findings&#44; specificity increased to 89&#46;7 &#37; and sensitivity decreased to 50 &#37;&#46; The presence of the four components of this latter model shows a specificity of 100 &#37;&#46;</p> <span class="elsevierStyleSectionTitle">Conclusions</span><p class="elsevierStyleSimplePara elsevierViewall">Some clinical manifestations and simple laboratory tests could aid the early detection of dengue infection in children&#46;</p>"
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Vol. 64. Núm. 6.
Páginas 523-529 (junio 2006)
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Vol. 64. Núm. 6.
Páginas 523-529 (junio 2006)
Originales
Acceso a texto completo
Indicadores tempranos de infección por dengue en niños
Early indicators of dengue infection in children
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F.A. Díaz-Quijano
Autor para correspondencia
fre_diazq@yahoo.com

Correspondencia: Dr. F.A. Díaz-Quijano. Centro de Investigaciones Epidemiológicas. Facultad de Salud de la Universidad Industrial de Santander. Ctra. 32 N.° 29-31, tercer piso. Bucaramanga. Colombia.
, L.A. Villar-Centeno, R.A. Martínez-Vega
Centro de Investigaciones Epidemiológicas. Universidad Industrial de Santander. Bucaramanga. Colombia
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Estadísticas
Objetivo

Identificar manifestaciones clínicas y de laboratorio útiles para el diagnóstico temprano del dengue en los niños.

Materiales y métodos

Se evaluaron 125 niños (de 5 a 12 años) con síndrome febril agudo de etiología inaparente. Mediante pruebas serológicas pareadas y/o cultivo viral, se confirmó la infección por el virus dengue en 40 pacientes y se descartó en 68 (17 indefinidos). Se compararon las manifestaciones clínicas tempranas (de los primeros 4 días de enfermedad) de los grupos con dengue y con otras causas del síndrome febril, y se determinaron los indicadores independientes de dengue en un análisis multivariado de regresión logística.

Resultados

Considerando las manifestaciones clínicas y el hemograma, los indicadores independientes de dengue fueron: la ausencia de rinorrea, el eritema facial y algún recuento de leucocitos ≤ 4.500/μ1. Con al menos dos de estos hallazgos se obtiene una sensibilidad del 67,5 % y una especificidad de 72,1 % para el diagnóstico de dengue. Incluyendo las pruebas de coagulación, se obtiene un modelo diagnóstico conformado por: ausencia de rinorrea, leucocitos ≤ 4.500/μ1, tiempo de protrombina > 14 s y tiempoparcial de tromboplastina > 29 s. Con dos de estos hallazgos se sugiere el diagnóstico de dengue con una sensibilidad del 90 % y una especificidad del 52,9 %. Con al menos tres hallazgos, la especificidad aumentaría al 89,7 % y la sensibilidad disminuiría al 50 %. La presencia de los cuatro componentes de este último modelo muestra una especificidad del 100 %.

Conclusiones

Algunas manifestaciones clínicas y pruebas de laboratorio simples podrían ayudar a detectar tempranamente el dengue en los niños.

Palabras clave:
Dengue
Diagnóstico clínico
Recuento de leucocitos
Tiempo de trombina
Tiempo parcial de tromboplastina
Objective

To identify clinical manifestations and laboratory findings useful for the early diagnosis of dengue in children.

Materials and methods

We prospectively evaluated 125 children (aged 5 to 12 years old) with acute febrile syndrome with no apparent etiology. Paired serologic tests and/or viral culture were performed and dengue infection was confirmed in 40 patients and ruled out in 68 (17 indefinite cases). Early clinical manifestations (within the first 4 days of the disease) in the groups with dengue and other causes of febrile syndrome were compared. Independent indicators of dengue were determined in a multivariate logistic regression analysis.

Results

When clinical manifestations and complete blood count were considered, the independent indicators of dengue were: absence of nasal discharge, facial flushing, and leukocyte count ≤ 4,500/μl. With at least two of these findings, a sensitivity of 67 % and a specificity of 72 % for the diagnosis of dengue were obtained. When coagulation tests were considered, a model for diagnosis was composed of: absence of nasal discharge, leukocyte count ≤ 4500/μl, prothrombin time > 14 seconds, and partial thromboplastin time > 29 seconds. Two of these findings suggested a diagnosis of dengue with a sensitivity of 90 % and a specificity of 52.9 %. With at least 3 findings, specificity increased to 89.7 % and sensitivity decreased to 50 %. The presence of the four components of this latter model shows a specificity of 100 %.

Conclusions

Some clinical manifestations and simple laboratory tests could aid the early detection of dengue infection in children.

Key words:
Dengue
Clinical diagnosis
Leukocyte count
Prothrombin time
Partial thromboplastin time
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Este estudio está incluido en la cohorte de pacientes del proyecto 1102-04-12919, cofinanciado por COLCIENCIAS y la Universidad Industrial de Santander.

Copyright © 2006. Asociación Española de Pediatría
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