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Prenat Diagn. 1994 Mar;14(3):177-80.

The importance of late pregnancy scans for renal tract abnormalities.

Author information

1
North Staffs, Maternity Hospital, North Staffs, Hospital Centre, Hartshill, Stoke-on-Trent, U.K.

Abstract

A 12-month prospective population study of antenatal patients was undertaken in a large district general hospital to assess ultrasound scanning in late pregnancy for the detection of non-lethal fetal renal abnormalities. The rate of false-negative antenatal scans during the study period was also assessed. Both 18-20 and 28-32 weeks' gestational scans were performed on 6497 pregnant women. Forty fetuses with a suspected abnormality were referred for postnatal examination and 29 neonates were found to have renal abnormalities. Of these, 21 were significant and eight were likely to be extrarenal pelves. In six, there was evidence of an abnormality at the early scan. Nine children, seven with reflux, presented within the study period, all with preceding normal antenatal scans. The incidence (0.46 per cent) of structural renal abnormalities is similar to that reported previously. A late scan is necessary for the antenatal detection of non-lethal renal abnormalities.

PMID:
8052565
DOI:
10.1002/pd.1970140306
[Indexed for MEDLINE]

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