TY - JOUR
T1 - Epidemiology of Dandy-Walker Malformation in Europe
T2 - A EUROCAT Population-Based Registry Study
AU - Santoro, Michele
AU - Coi, Alessio
AU - Barišić, Ingeborg
AU - Garne, Ester
AU - Addor, Marie-Claude
AU - Bergman, Jorieke E H
AU - Bianchi, Fabrizio
AU - Boban, Ljubica
AU - Braz, Paula
AU - Cavero-Carbonell, Clara
AU - Gatt, Miriam
AU - Haeusler, Martin
AU - Kinsner-Ovaskainen, Agnieszka
AU - Klungsøyr, Kari
AU - Kurinczuk, Jennifer J
AU - Lelong, Nathalie
AU - Luyt, Karen
AU - Materna-Kiryluk, Anna
AU - Mokoroa, Olatz
AU - Mullaney, Carmel
AU - Nelen, Vera
AU - Neville, Amanda Julie
AU - O'Mahony, Mary T
AU - Perthus, Isabelle
AU - Randrianaivo, Hanitra
AU - Rankin, Judith
AU - Rissmann, Anke
AU - Rouget, Florence
AU - Schaub, Bruno
AU - Tucker, David
AU - Wellesley, Diana
AU - Yevtushok, Lyubov
AU - Pierini, Anna
N1 - © 2019 S. Karger AG, Basel.
PY - 2019/11
Y1 - 2019/11
N2 - BACKGROUND: Dandy-Walker (DW) malformation is a rare and severe congenital anomaly of the posterior fossa affecting the development of the cerebellum and the fourth ventricle.OBJECTIVE: The aim of this study was to investigate the epidemiology of DW malformation, using data from the European population-based registries of congenital anomalies in the European Surveillance of Congenital Anomalies network.METHODS: Anonymous individual data on cases of DW malformation diagnosed in 2002-2015 from 28 registries in 17 countries were included. Prevalence, prenatal detection rate, proportions and types of associated anomalies were estimated. Cases of DW variant were considered and analysed separately.RESULTS: Out of 8,028,454 surveyed births we identified a total of 734 cases, including 562 DW malformation cases and 172 DW variant cases. The overall prevalence of DW malformation was 6.79 per 100,000 births (95% CI 5.79-7.96) with 39.2% livebirths, 4.3% foetal deaths from 20 weeks gestational age, and 56.5% terminations of pregnancy after prenatal diagnosis of foetal anomaly at any gestation (TOPFA). The livebirth prevalence was 2.74 per 100,000 births (95% CI 2.08-3.61). The prenatal detection rate was 87.6%. Two-hundred and seventy-three cases (48.6%) had an isolated cerebral anomaly and 24.2, 19.2 and 5.5% cases were associated with other structural non-cerebral anomalies, chromosomal anomalies and genetic syndromes respectively. The prevalence of DW variant was 2.08 per 100,000 (95% CI 1.39-3.13).CONCLUSIONS: This European population-based study provides the epidemiological profile of DW malformation. All birth outcomes were analysed and TOPFA represented more than half of the cases. About 50% of the cases of DW malformation were associated with other non-cerebral anomalies. Large populations and all birth outcomes are essential in epidemiological studies of rare and severe congenital anomalies.
AB - BACKGROUND: Dandy-Walker (DW) malformation is a rare and severe congenital anomaly of the posterior fossa affecting the development of the cerebellum and the fourth ventricle.OBJECTIVE: The aim of this study was to investigate the epidemiology of DW malformation, using data from the European population-based registries of congenital anomalies in the European Surveillance of Congenital Anomalies network.METHODS: Anonymous individual data on cases of DW malformation diagnosed in 2002-2015 from 28 registries in 17 countries were included. Prevalence, prenatal detection rate, proportions and types of associated anomalies were estimated. Cases of DW variant were considered and analysed separately.RESULTS: Out of 8,028,454 surveyed births we identified a total of 734 cases, including 562 DW malformation cases and 172 DW variant cases. The overall prevalence of DW malformation was 6.79 per 100,000 births (95% CI 5.79-7.96) with 39.2% livebirths, 4.3% foetal deaths from 20 weeks gestational age, and 56.5% terminations of pregnancy after prenatal diagnosis of foetal anomaly at any gestation (TOPFA). The livebirth prevalence was 2.74 per 100,000 births (95% CI 2.08-3.61). The prenatal detection rate was 87.6%. Two-hundred and seventy-three cases (48.6%) had an isolated cerebral anomaly and 24.2, 19.2 and 5.5% cases were associated with other structural non-cerebral anomalies, chromosomal anomalies and genetic syndromes respectively. The prevalence of DW variant was 2.08 per 100,000 (95% CI 1.39-3.13).CONCLUSIONS: This European population-based study provides the epidemiological profile of DW malformation. All birth outcomes were analysed and TOPFA represented more than half of the cases. About 50% of the cases of DW malformation were associated with other non-cerebral anomalies. Large populations and all birth outcomes are essential in epidemiological studies of rare and severe congenital anomalies.
U2 - 10.1159/000501238
DO - 10.1159/000501238
M3 - Article
C2 - 31302658
SN - 0251-5350
VL - 53
SP - 169
EP - 179
JO - Neuroepidemiology
JF - Neuroepidemiology
IS - 3-4
ER -