Isolated minimal renal pelvic dilatation detected antenatally in a non-tertiary setting is an uncommon predictor of significant vesicoureteric reflux.
OBJECTIVE
To study in a non-tertiary centre the prevalence and grade of vesicoureteric reflux detected postnatally in infants already identified antenatally with isolated minimal renal pelvic dilatation.


METHODS
Retrospective review over the years 1998-2000 inclusive of a central computerized database in the single paediatric practice within Albury Wodonga.


RESULTS
Ninety-three (65 male) infants detected antenatally with isolated renal pelvic dilatation (>or=3 mm at 18 weeks gestation, >or=5 mm at 32 weeks gestation,<10 mm dilatation at any gestation) had a Micturating Cystourethrogram result. Thirteen infants (seven male) had vesicoureteric reflux detected, with a total of 18 refluxing renal units. Of these 13 infants five had bilateral vesicoureteric reflux (two male), and eight had unilateral vesicoureteric reflux. The median reflux grade was 2.0, with significant vesicoureteric reflux (greater than grade II) occurring in 5.4% (5/93).


CONCLUSIONS
Significant vesicoureteric reflux (greater than grade II) occurred in only 5.4% (5/93) of infants. It is concluded that isolated minimal renal pelvic dilatation detected antenatally is a poor screening test for clinically significant vesicoureteric reflux.
Rennick
G J
GJ
Albury Wodonga Paediatric Group, Albury, New South Wales, Australia. gordon.rennick@bigpond.com
D004108:Dilatation, Pathologic / Q000150:complications / Q000000981:diagnostic imaging; D005260:Female; D005500:Follow-Up Studies; D006779:Hospitals, Public; D006801:Humans; D015994:Incidence; D007231:Infant, Newborn; D007682:Kidney Pelvis / Q000002:abnormalities* / Q000000981:diagnostic imaging; D008297:Male; D011237:Predictive Value of Tests; D011247:Pregnancy; D011866:Radioisotope Renography; D012042:Registries; D012189:Retrospective Studies; D018570:Risk Assessment; D012680:Sensitivity and Specificity; D012720:Severity of Illness Index; D016216:Ultrasonography, Prenatal; D014718:Vesico-Ureteral Reflux / Q000000981:diagnostic imaging / Q000453:epidemiology* / Q000209:etiology*