{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,9]],"date-time":"2026-08-09T21:13:30Z","timestamp":1786310010003,"version":"build-2736575974"},"reference-count":32,"publisher":"BMJ","issue":"1","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Arch Dis Child Fetal Neonatal Ed"],"published-print":{"date-parts":[[1997,1,1]]},"abstract":"<jats:p>Detailed antenatal sonography was performed on 18 766 pregnant women between 1990 and 1994. Antenatal hydronephrosis, defined as an antero-posterior diameter of the renal pelvis (APPD) greater than 5 mm, was detected in 100 cases (0.59%). Sixty four infants had postnatal hydronephrosis at one and\/or six weeks after delivery; 21 of these had urological anomalies.<\/jats:p>\n               <jats:p>\u2003Twelve infants had vesico-ureteric reflux. In all refluxing units the APPD of the renal pelvis was less than 10 mm. Three patients had obstruction at the pelvi-ureteric junction (PUJ); all required surgery.<\/jats:p>\n               <jats:p>\u2003Vesico-ureteric reflux is emerging as the most common urological finding in infants with antenatal hydronephrosis and is likely to be missed if kidneys with APPD of less than 10 mm are not further investigated. In contrast, pelvi-ureteric junction obstruction may be overdiagnosed, based only on drainage patterns of dynamic renogram studies.<\/jats:p>","DOI":"10.1136\/fn.76.1.f31","type":"journal-article","created":{"date-parts":[[2009,4,8]],"date-time":"2009-04-08T11:48:05Z","timestamp":1239191285000},"page":"F31-F34","source":"Crossref","is-referenced-by-count":113,"title":["Clinical relevance and implications of antenatal hydronephrosis"],"prefix":"10.1136","volume":"76","author":[{"given":"J A","family":"Dudley","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J M","family":"Haworth","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"M E","family":"McGraw","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J D","family":"Frank","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"E J","family":"Tizard","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"239","published-online":{"date-parts":[[1997,1,1]]},"reference":[{"key":"2025090511082166000_76.1.F31.1","doi-asserted-by":"crossref","first-page":"879","DOI":"10.1542\/peds.78.5.879","article-title":"Prenatal diagnosis of urinary tract abnormalities by ultrasound.","volume":"78","author":"Helin","year":"1986","journal-title":"Pediatrics"},{"key":"2025090511082166000_76.1.F31.2","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(85)92154-3"},{"key":"2025090511082166000_76.1.F31.3","doi-asserted-by":"crossref","first-page":"1417","DOI":"10.1136\/bmj.298.6685.1417","article-title":"Value of antenatal diagnosis of abnormalities of urinary tract.","volume":"289","author":"Grieg","year":"1989","journal-title":"BMJ"},{"key":"2025090511082166000_76.1.F31.4","doi-asserted-by":"crossref","first-page":"225","DOI":"10.1111\/j.1464-410X.1990.tb14917.x","article-title":"Fetal uropathy.","volume":"66","author":"Thomas","year":"1990","journal-title":"Br J Urol"},{"key":"2025090511082166000_76.1.F31.5","doi-asserted-by":"publisher","DOI":"10.1007\/BF02388714"},{"key":"2025090511082166000_76.1.F31.6","doi-asserted-by":"crossref","first-page":"784","DOI":"10.1111\/j.1464-410X.1985.tb07054.x","article-title":"Prenatal diagnosis: How useful is it?","volume":"57","author":"Thomas","year":"1985","journal-title":"Br J Urol"},{"key":"2025090511082166000_76.1.F31.7","doi-asserted-by":"crossref","first-page":"1421","DOI":"10.1136\/bmj.298.6685.1421","article-title":"Antenatal ultrasonography to detect fetal renal abnormalities: a prospective screening programme.","volume":"298","author":"Livera","year":"1989","journal-title":"BMJ"},{"key":"2025090511082166000_76.1.F31.8","doi-asserted-by":"publisher","DOI":"10.1136\/adc.63.10.1240"},{"key":"2025090511082166000_76.1.F31.9","doi-asserted-by":"publisher","DOI":"10.1136\/adc.63.8.961"},{"key":"2025090511082166000_76.1.F31.10","doi-asserted-by":"crossref","first-page":"645","DOI":"10.1148\/radiology.160.3.3526402","article-title":"Urinary tract dilatation in utero: classification and clinical applications.","volume":"160","author":"Grignon","year":"1986","journal-title":"Radiology"},{"key":"2025090511082166000_76.1.F31.11","doi-asserted-by":"crossref","first-page":"485","DOI":"10.1148\/radiology.156.2.3892578","article-title":"Routine fetal genitourinary tract screening.","volume":"156","author":"Arger","year":"1985","journal-title":"Radiology"},{"key":"2025090511082166000_76.1.F31.12","first-page":"67","article-title":"Fetal genitourinary tract anomalies: evaluation, operative correction and follow-up.","volume":"73","author":"Callan","year":"1990","journal-title":"Obstet Gynaecol"},{"key":"2025090511082166000_76.1.F31.13","doi-asserted-by":"publisher","DOI":"10.1007\/BF00868254"},{"key":"2025090511082166000_76.1.F31.14","doi-asserted-by":"crossref","first-page":"157","DOI":"10.1148\/radiology.187.1.8451404","article-title":"Incidental vesicoureteral reflux in neonates with antenatally detected hydronephrosis and other renal abnormalities.","volume":"187","author":"Zerin","year":"1993","journal-title":"Radiology"},{"key":"2025090511082166000_76.1.F31.15","doi-asserted-by":"crossref","first-page":"F147","DOI":"10.1136\/fn.70.2.F147","article-title":"Mild fetal hydronephrosis indicating vesicoureteric reflux.","volume":"70","author":"Marra","year":"1994","journal-title":"Arch Dis Child"},{"key":"2025090511082166000_76.1.F31.16","doi-asserted-by":"crossref","first-page":"649","DOI":"10.1148\/radiology.160.3.3526403","article-title":"Ureteropelvic junction stenosis: antenatal ultrasonographic diagnosis, postnatal investigation and follow-up.","volume":"160","author":"Grignon","year":"1986","journal-title":"Radiology"},{"key":"2025090511082166000_76.1.F31.17","unstructured":"Homsy YL Koff SA (1988) Problems in the diagnosis of obstruction in the neonate. 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