title: Correlation of prenatal renal pelvic anteroposterior diameter with outcome in infancy.
abstract: OBJECTIVE
  We attempted to correlate prenatal renal pelvic anteroposterior diameter with outcome in infancy.
  
  
  METHODS
  Between May 1992 and March 1994 we identified 27 cases of fetal hydronephrosis in which renal pelvic anteroposterior diameter was 4 mm. or greater before 33 weeks of gestation and 7 mm. or greater at or after 33 weeks of gestation.
  
  
  RESULTS
  Hydronephrosis was bilateral in 18 fetuses and unilateral in 9. Shortly after birth radiological assessment revealed vesicoureteral reflux in 6 neonates, ureteropelvic junction obstruction in 6, extrarenal pelves in 3 and persistent nonobstructive hydronephrosis in 4. Radiological evaluation was normal in 8 newborns.
  
  
  CONCLUSIONS
  When these screening criteria for hydronephrosis are met prenatally a complete radiological assessment should be done following birth.
authors.affiliation: Department of Pediatrics (Division of Pediatric Nephrology), University of Florida College of Medicine, Gainesville, USA.
authors.forename: A
authors.initials: A
authors.lastname: Stocks
authors.forename: D
authors.initials: D
authors.lastname: Richards
authors.forename: B
authors.initials: B
authors.lastname: Frentzen
authors.forename: G
authors.initials: G
authors.lastname: Richard
mesh_terms: D000704:Analysis of Variance; D016001:Confidence Intervals; D005260:Female; D005315:Fetal Diseases / Q000000981:diagnostic imaging*; D006801:Humans; D006869:Hydronephrosis / Q000150:complications / Q000000981:diagnostic imaging*; D007231:Infant, Newborn; D007682:Kidney Pelvis / Q000000981:diagnostic imaging* / Q000473:pathology; D008297:Male; D004369:Pentetic Acid; D011247:Pregnancy; D011446:Prospective Studies; D016216:Ultrasonography, Prenatal; D014517:Ureteral Obstruction / Q000175:diagnosis / Q000453:epidemiology / Q000209:etiology; D014718:Vesico-Ureteral Reflux / Q000175:diagnosis / Q000453:epidemiology / Q000209:etiology
chemical_list: D004369:Pentetic Acid