2001
DOI: 10.4321/s1131-57682001001000003
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Diagnóstico prenatal y cribado de cromosomopatías

Abstract: INTRODUCCIÓNEntendemos por s c reening de población para detección de anomalías o enfermedades, la aplicación sistemática de métodos que permitan seleccionar entre todos los individuos aparentemente sanos, aquéllos con mas riesgo de padecerlas. El diagnós-tico prenatal engloba a todas aquellas actividades diagnósticas que buscan conocer la existencia de un defecto congénito, que, según la definición dada por la OMS incluye a toda anomalía del desarrollo morfológico, estructural, funcional o molecular, presente… Show more

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“…Nevertheless, there is an estimated risk of pregnancy loss associated with these procedures, between 0.5 and 1.5%, during all three trimesters. 4 5 Therefore, other methods, like the cell-free DNA analysis in maternal blood are used with a detection rate (DR) of 99% for trisomy 21, 96% for fetal trisomy 18, and 91% for trisomy 13, which are the most frequent chromosomal abnormalities. 6 The biggest limitation of these methods are their high cost, which prevents their use as a primary assessment tool for the entire population.…”
Section: Introductionmentioning
confidence: 99%
“…Nevertheless, there is an estimated risk of pregnancy loss associated with these procedures, between 0.5 and 1.5%, during all three trimesters. 4 5 Therefore, other methods, like the cell-free DNA analysis in maternal blood are used with a detection rate (DR) of 99% for trisomy 21, 96% for fetal trisomy 18, and 91% for trisomy 13, which are the most frequent chromosomal abnormalities. 6 The biggest limitation of these methods are their high cost, which prevents their use as a primary assessment tool for the entire population.…”
Section: Introductionmentioning
confidence: 99%