Kidney anomalies diagnosed by prenatal ultrasound screening and associated non-urinary malformations: a nationwide prevalence study

Danish Fetal Medicine Research Group

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review


ObjectivesTo estimate the prevalence of kidney anomalies at second trimester ultrasound screening, and furthermore, to investigate pregnancy outcomes and the pattern of additional malformations. MethodsWe previously identified all women attending second-trimester ultrasound scans in Denmark between 1 January 2007 and 31 December 2012. Using the Astraia databases and the Danish National Patient Registry, we identified all fetuses with kidney anomalies diagnosed prenatally in these women. In addition to the prevalence of fetuses with kidney anomalies, we estimated the live birth prevalence ratio of non-urinary malformations, comparing the prevalences in infants with and without prenatally diagnosed kidney anomalies. ResultsThe prevalence of fetuses with kidney anomalies at second trimester scans was 11.4 per 10000 fetuses. Among the 412 fetuses identified, 127 pregnancies were terminated. For live born children the prevalence of additional non-urinary malformations was four times higher (95% CI: 3-5) compared with the prevalence among children without prenatal kidney anomalies. Digestive system anomalies were particularly prevalent. ConclusionThese population-based data provide additional insight into the course of pregnancy and birth outcomes following prenatal diagnoses of kidney anomalies. (c) 2016 John Wiley & Sons, Ltd.
TidsskriftPrenatal Diagnosis
Udgave nummer9
Sider (fra-til)847-853
StatusUdgivet - sep. 2016


Bibliografisk note

ISI Document Delivery No.: DX1AB Times Cited: 0 Cited Reference Count: 21 Rasmussen, Maria Olsen, Morten Smaerup Sunde, Lone Sperling, Lene Sondergard Petersen, Olav Bjorn Sunde, Lone/0000-0002-8479-165X Aase and Ejnar Danielsens foundation; Helen and Ejnar Bjornows foundation; Olga Madsens foundation; Aarhus University, Health This study was supported by grants from Aase and Ejnar Danielsens foundation, Helen and Ejnar Bjornows foundation, Director Jacob Madsen and his wife, Olga Madsens foundation, and Aarhus University, Health. 0 Wiley-blackwell Hoboken 1097-0223