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        "titulo" => "Prevalencia y caracter&#237;sticas cl&#237;nicas de los nevos melanoc&#237;ticos cong&#233;nitos en 1&#46;000 reci&#233;n nacidos espa&#241;oles"
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        "titulo" => "Abstract"
        "resumen" => "<span class="elsevierStyleSectionTitle">Background</span><p id="spar0005" class="elsevierStyleSimplePara elsevierViewall">Congenital melanocytic nevus is a benign proliferation of melanocytes that is present at birth or develops in the first months of life&#46; Although such lesions are common&#44; few studies have analyzed their prevalence in Spain&#46;</p> <span class="elsevierStyleSectionTitle">Objectives</span><p id="spar0010" class="elsevierStyleSimplePara elsevierViewall">The aim of this study was to define the prevalence and most frequent anatomical areas affected by congenital melanocytic nevi in our health service area&#46; We also analyzed the influence of maternal and neonatal factors in the development of these lesions&#46;</p> <span class="elsevierStyleSectionTitle">Patients and methods</span><p id="spar0015" class="elsevierStyleSimplePara elsevierViewall">We performed a prospective study of 1000 consecutive neonates seen in the first 72hours of life in the perinatology clinic of the Pediatrics Department of Hospital Arquitecto Marcide in Ferrol&#44; Spain&#44; recording specific maternal and neonatal variables and the size and site of congenital melanocytic nevi if present&#46;</p> <span class="elsevierStyleSectionTitle">Results</span><p id="spar0020" class="elsevierStyleSimplePara elsevierViewall">Fourteen infants &#40;10 girls and 4 boys&#59; 12 white European&#44; 2 North African&#59; 1&#46;4&#37; of the study population&#41; presented at least 1 melanocytic nevus&#46; None had more than 1 lesion&#46; Eight of the nevi were located on the trunk&#44; 2 on the face&#44; 2 on the upper limbs&#44; and 2 on the lower limbs&#46; The diameter of the lesions was less than 1&#46;5cm in half of cases and between 1&#46;5 and 3&#46;5cm in the remainder&#46;</p> <span class="elsevierStyleSectionTitle">Conclusions</span><p id="spar0025" class="elsevierStyleSimplePara elsevierViewall">There was a higher prevalence of congenital melanocytic nevi in preterm infants&#44; females&#44; and nonwhite infants&#46; Maternal age&#44; number of previous pregnancies&#44; and birth weight do not appear to influence the prevalence of these lesions&#46;</p>"
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        "resumen" => "<span class="elsevierStyleSectionTitle">Introducci&#243;n</span><p id="spar0030" class="elsevierStyleSimplePara elsevierViewall">El nevo melanoc&#237;tico cong&#233;nito es una proliferaci&#243;n melanoc&#237;tica benigna presente al nacimiento o en los primeros meses de vida&#46; Aunque es una lesi&#243;n com&#250;n&#44; hay pocos estudios en nuestro entorno que analicen su frecuencia&#46; El objetivo de nuestro estudio es conocer su prevalencia y las localizaciones m&#225;s frecuentes en los reci&#233;n nacidos de nuestra &#225;rea sanitaria&#44; y analizar la influencia de los factores neonatales y maternos en el desarrollo de estas lesiones&#46;</p> <span class="elsevierStyleSectionTitle">Pacientes y m&#233;todos</span><p id="spar0035" class="elsevierStyleSimplePara elsevierViewall">Realizamos un estudio prospectivo de 1&#46;000 neonatos consecutivos vistos en las primeras 72 horas de vida en la consulta de Perinatolog&#237;a del Servicio de Pediatr&#237;a de nuestro hospital &#40;Hospital Arquitecto Marcide&#44; Ferrol&#44; Espa&#241;a&#41;&#46; En cada caso se recogieron datos referentes a diferentes par&#225;metros maternos y neonatales&#44; y la presencia&#44; el tama&#241;o y la localizaci&#243;n de los nevos melanoc&#237;ticos cong&#233;nitos&#46;</p> <span class="elsevierStyleSectionTitle">Resultados</span><p id="spar0040" class="elsevierStyleSimplePara elsevierViewall">Catorce neonatos &#40;el 1&#44;4&#37; de los neonatos incluidos&#41; presentaban al menos un nevo melanoc&#237;tico cong&#233;nito&#46; Doce eran caucasianos y 2 &#225;rabes&#46; Respecto al sexo&#44; 10 reci&#233;n nacidos eran de sexo femenino y 4 de sexo masculino&#46; En todos los casos presentaba solo un nevo melanoc&#237;tico&#46; Ocho se localizaban en el tronco&#44; 2 en el &#225;rea facial&#44; 2 en las extremidades superiores y 2 en las inferiores&#46; El 50&#37; de los nevos melanoc&#237;ticos cong&#233;nitos ten&#237;an un di&#225;metro inferior a 1&#44;5<span class="elsevierStyleHsp" style=""></span>cm y la otra mitad entre 1&#44;5 y 3&#44;5<span class="elsevierStyleHsp" style=""></span>cm&#46;</p> <span class="elsevierStyleSectionTitle">Conclusiones</span><p id="spar0045" class="elsevierStyleSimplePara elsevierViewall">Existe una mayor prevalencia de nevos melanoc&#237;ticos en los reci&#233;n nacidos pret&#233;rmino&#44; de sexo femenino y no caucasianos&#46; La edad materna&#44; el n&#250;mero de gestaciones previas y el peso al nacimiento no parecen influir en su aparici&#243;n&#46;</p>"
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Vol. 102. Issue 2.
Pages 114-120 (March 2011)
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Vol. 102. Issue 2.
Pages 114-120 (March 2011)
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Prevalence and Clinical Features of Congenital Melanocytic Nevi in 1,000 Spanish Newborns
Prevalencia y características clínicas de los nevos melanocíticos congénitos en 1.000 recién nacidos españoles
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B. Monteagudoa,
Corresponding author
benims@hotmail.com

Corresponding author.
, J. Labandeirab, A. Acevedoc, A. Ramírez-Santosa, M. Cabanillasa, A. Corralesd, I. Carballeirad, J. Toribiob
a Servicio de Dermatología, Hospital Arquitecto Marcide, Área Sanitaria de Ferrol, SERGAS, Ferrol, La Coruña, Spain
b Servicio de Dermatología, Complexo Hospitalario Universitario de Santiago de Compostela (CHUS), SERGAS, Facultad de Medicina, Santiago de Compostela, La Coruña, Spain
c Unidad de Formación Continuada, Hospital Arquitecto Marcide, Área Sanitaria de Ferrol, SERGAS, Ferrol, La Coruña, Spain
d Servicio de Pediatría, Hospital Arquitecto Marcide, Área Sanitaria de Ferrol, SERGAS, Ferrol, La Coruña, Spain
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Abstract
Background

Congenital melanocytic nevus is a benign proliferation of melanocytes that is present at birth or develops in the first months of life. Although such lesions are common, few studies have analyzed their prevalence in Spain.

Objectives

The aim of this study was to define the prevalence and most frequent anatomical areas affected by congenital melanocytic nevi in our health service area. We also analyzed the influence of maternal and neonatal factors in the development of these lesions.

Patients and methods

We performed a prospective study of 1000 consecutive neonates seen in the first 72hours of life in the perinatology clinic of the Pediatrics Department of Hospital Arquitecto Marcide in Ferrol, Spain, recording specific maternal and neonatal variables and the size and site of congenital melanocytic nevi if present.

Results

Fourteen infants (10 girls and 4 boys; 12 white European, 2 North African; 1.4% of the study population) presented at least 1 melanocytic nevus. None had more than 1 lesion. Eight of the nevi were located on the trunk, 2 on the face, 2 on the upper limbs, and 2 on the lower limbs. The diameter of the lesions was less than 1.5cm in half of cases and between 1.5 and 3.5cm in the remainder.

Conclusions

There was a higher prevalence of congenital melanocytic nevi in preterm infants, females, and nonwhite infants. Maternal age, number of previous pregnancies, and birth weight do not appear to influence the prevalence of these lesions.

Keywords:
Birthmark
Congenital melanocytic nevus
Pigmented lesion
Newborn
Resumen
Introducción

El nevo melanocítico congénito es una proliferación melanocítica benigna presente al nacimiento o en los primeros meses de vida. Aunque es una lesión común, hay pocos estudios en nuestro entorno que analicen su frecuencia. El objetivo de nuestro estudio es conocer su prevalencia y las localizaciones más frecuentes en los recién nacidos de nuestra área sanitaria, y analizar la influencia de los factores neonatales y maternos en el desarrollo de estas lesiones.

Pacientes y métodos

Realizamos un estudio prospectivo de 1.000 neonatos consecutivos vistos en las primeras 72 horas de vida en la consulta de Perinatología del Servicio de Pediatría de nuestro hospital (Hospital Arquitecto Marcide, Ferrol, España). En cada caso se recogieron datos referentes a diferentes parámetros maternos y neonatales, y la presencia, el tamaño y la localización de los nevos melanocíticos congénitos.

Resultados

Catorce neonatos (el 1,4% de los neonatos incluidos) presentaban al menos un nevo melanocítico congénito. Doce eran caucasianos y 2 árabes. Respecto al sexo, 10 recién nacidos eran de sexo femenino y 4 de sexo masculino. En todos los casos presentaba solo un nevo melanocítico. Ocho se localizaban en el tronco, 2 en el área facial, 2 en las extremidades superiores y 2 en las inferiores. El 50% de los nevos melanocíticos congénitos tenían un diámetro inferior a 1,5cm y la otra mitad entre 1,5 y 3,5cm.

Conclusiones

Existe una mayor prevalencia de nevos melanocíticos en los recién nacidos pretérmino, de sexo femenino y no caucasianos. La edad materna, el número de gestaciones previas y el peso al nacimiento no parecen influir en su aparición.

Palabras clave:
Marca de nacimiento
Nevo melanocítico congénito
Lesión pigmentada
Recién nacido
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Actas Dermosifiliogr., 102 (2011), pp. 114-120
Copyright © 2011. Academia Española de Dermatología y Venereología and Elsevier España, S.L.
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