La investigación ha confirmado que la razón por la que los niños nacidos tras fertilización in vitro (FIV) presentan un riesgo superior a la media de parálisis cerebral es principalmente por nacimientos prematuros, según un estudio de la Universidad de Aarhus (Dinamarca).
En este trabajo, recogido en “Pediatrics”, se analizaron los datos de más de 9.000 niños concebidos mediante FIV y de cerca de 400.000 sin FIV en un periodo de 6 años. En un primer análisis, los nacidos mediante FIV presentaron un riesgo incrementado del 61% de presentar parálisis cerebral; sin embargo, la adición de factores asociados a partos múltiples y prematuros hizo desaparecer esa diferencia. Los investigadores hallaron que el riesgo aumentado en el grupo FIV era principalmente atribuible a la amplia proporción de niños prematuros en este colectivo.
Pediatrics 2006;118:475-482
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