%0 Journal Article %T Hidronefrosis prenatal secundaria a reflujo vesicoureteral %A Sandalio Dur芍n 芍lvarez %A Llanilis J迆stiz Hern芍ndez %A Sayli 芍lvarez D赤az %A Belkis V芍zquez R赤os %J Revista Cubana de Pediatrˋ-a %D 2003 %I Editorial Ciencias M谷dicas %X Se realiz車 uretrocistograf赤a miccional a 54 ni os (37 varones) a los que mediante ultrasonido materno-fetal se les hab赤a detectado dilataci車n de una o ambas pelvis renales (20 ten赤an dilataci車n bilateral). En 12 (22,2 %) de los 54 ni os se demostr車 reflujo vesicoureteral; 9 (75 %) de ellos varones. Los 9 varones ten赤an 12 unidades renales refluyentes y en 2 de las 3 ni as el reflujo era bilateral. De los 7 reflujos de alto grado (IV y V) 6 correspondieron al sexo masculino. El estudio gammagr芍fico est芍tico (Tc 99m-DMSA) demostr車 afectaci車n de 4 ri ones con reflujo de alto grado y en 1, grado II sin antecedentes de infecci車n en ninguno de ellos. La funci車n renal relativa de estos ri ones oscil車 entre 40 y 9 %. Se demostr車 reflujo vesicoureteral de bajo grado (I y II) en 2 pacientes que no mostraban dilataci車n p谷lvica en la unidad renal con estos reflujos. Todos los reflujos de alto grado se correspondieron con dilataciones hidronefr車ticas severas. Cystourethrography was performed on 54 children of whom 37 were males, who had been previously detected dilatation of one or both renal pelvis through maternal-fetal ultrasound (20 had bilateral dilatation). The test detected vesicoureteral reflux in 12 of the 54(12 %); 9 of them were males. The 9 boys had 12 refluxed renal units and 2 of the 3 girls presented with bilateral reflux. Six of the 7 high grade (IV and V) refluxes corresponded to boys. The static scintigraphic study (TC 99m-DMSA) showed that four kidneys were affected with high grade reflux and one with grade II reflux, without having history of infections of any kind. The relative renal function of these kidneys ranged from 9 to 40 %. Low grade vesicoureteral reflux (I and II) was present in two patients who did not show pelvic dilatation in the renal unit with these refluxes. All high grade refluxes corresponded to severe hydronephrotic dilatations. %K HIDRONEFROSIS %K ULTRASONOGRAFIA PRENATAL %K REFLUJO VESICOURETERAL %K NEFROPATIAS %K HYDRONEPHROSIS %K ULTRASONOGRAPHY %K PRENATAL %K VESICO-URETERAL REFLUX %K KIDNEY DISEASES %U http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S0034-75312003000300006