ANTENATAL DOUBT AND
POSTNATAL DIAGNOSIS
OF URINARY ANOMALY
Urinary tract and renal abnormalities represent 20% of all
congenital malformations.
Prenatal fetal ultrasonography revealed data of echostructure
of renal parenchyma, dilatation of urinary sistem and visualisation of the fetal
bladder after 16 weeks of gestation.
Pyelic dilatation is considered when the anteroposterior
diameter exceeds 4 mm before and 7 mm after 33 th week of gestation.
All the children with antenatal doubt of urinary malformation
should be examined. In the last 2 years we examined 25 newborns with antenatal
doubt about urinary abnormalities. Multicystic dysplastic kidney was identified
in 20%, posterior urethral valves in 12%, ureterocela in 8%, vesicoureteric
junction anomaly in 24%, and high grade VUR in 32%.
In the secound group of newborns, which was at the same time
controlled due to the postnatally revealed hydronephrosis, our annual follow-up
showed that there was spontaneous reduction of changes in 50% of cases, while in
25% of cases we revealed the reflux and vesicouretheric junction anomaly in 25%.
Prenatally diagnosed hydronephrosis is more severe than
hydronephrosis of the same degree revealed postnatally. Hydronephrosis in the
first postnatal days in sterile urine conditions has spontaneous regression in
one third of examined children. Acta Medica Medianae 2005; 44(1): 55-58.
Key words: urinary anomaly, antenatal doubt, postnatal
diagnosis