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Acta toxicol. argent ; 17(2): 41-47, dic. 2009. tab, graf
Article in Spanish | LILACS | ID: lil-564758

ABSTRACT

Se investigaron cocaína y marihuana en meconio de neonatos nacidos en la Maternidad Provincial de la Ciudad de Córdoba y se relacionaron los resultados con las semanas de gestación y los pesos al nacer. Las determinaciones se realizaron utilizando inmunoensayo y cromatografía gaseosa-espectrometría de masas. Se analizaron 48 muestras de meconio recolectadas durante un año (2007-2008). De los 48 meconios analizados, 17 correspondieron a neonatos masculinos y 31 a neonatos femeninos. Se procesaron en paralelo 15 muestras de meconio como controles normales (niños no expuestos a drogas) seleccionados por historia clínica y controles prenatales. De las 48 muestras de meconio 13 fueron positivas para cocaína y/o marihuana. El peso y las semanas degestación de los neonatos cuyas muestras fueron positivas se compararon frente a un grupo control normal, hallándose mayores diferencias estadísticamente significativas (α=0,05 – p<0,0001) en relación a los pesos al nacer. Estos resultados, a pesar del reducido número de casos analizados, resaltan la importancia de la investigación de drogas de abuso en meconio, lo que permite confirmar el uso de drogas por parte de la madre durante el período gestacional temprano, y de ese modo interpretar las alteraciones (déficit de peso) observadas en el neonato al nacer, atribuibles al consumo de drogas durante la gestación.


We investigated cocaine and marijuana in meconium of newborns attended at the Hospital Materno Provincial of Córdoba City and the results were correlated with birthweight and weeks of pregnancy. The samples were analyzed using immunoassay (FPIA) and gas chromatography-mass spectrometry (GC-MS) for confirmation. Forty eight samples of meconium were collected during one year period (2007-2008). Of the 48 samples screened, 17 correspond to masculine sex and 31 to feminine. Fifteen samples of meconium from normal newborns (newborns not exposed to drugs) selected by maternal self report, pregnancy controls were processed as control group. The results obtained in 48 samples of meconium showed 13 cases tested positive for cocaine and/or marijuana. Birth weight and weeks of gestation of newborn with positive sample results were compared with a control group. A statistically significant difference (α= 0.05 - p<0.0001) was found in relation to birth weight. Although these results arise from a small number of samples, these data have relevance in public health and show the importance of the screening of drugs of abuse in meconium to confirm use in mothers during pregnancy and to interpret the alterations observed in the newborn after delivery as consequence of drug use in prenatal period.


Subject(s)
Humans , Male , Female , Pregnancy , Infant, Newborn , Cannabis/metabolism , Cocaine/analysis , Cocaine/metabolism , Pregnancy Complications/diagnosis , Fetus , Maternal-Fetal Exchange , Meconium/chemistry , Substance-Related Disorders/diagnosis , Argentina , Gas Chromatography-Mass Spectrometry , Hospitals, Public , Narcotics/analysis , Narcotics/metabolism
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