Omphalocele: national current birth prevalence and survival
Anna Fogelström1,2, Cecilia Caldeman3,4, Jenny Oddsberg3,4
1Division of Pediatric Surgery, Astrid Lindgren Children's Hospital, Karolinska University Hospital, 17176, Stockholm, Sweden. anna.fogelstrom@ki.se.
Purpose:
The increase in prenatal diagnosis together with the high rates of associated anomalies in omphalocele has led to increased rates of termination of pregnancies. The aim of this study was to examine the national Swedish birth prevalence and survival rates among these patients.
Methods:
This study is based on a nationwide population-based cohort of all children born in Sweden between 1/1/1997 and 31/12/2016. All omphalocele cases were identified though the Swedish National Patient Register and the Swedish Medical Birth Register. Outcome of malformations and deaths were retrieved from the Swedish Birth Defects Register and the Swedish Causes of Death Register.
Results:
The study included 207 cases of omphalocele (42% females). The birth prevalence for omphalocele was 1/10,000 live births. About 62% of the cases had associated malformations and/or genetic disorders; most common was ventricular septal defect. The mortality within the first year was 13%. The rate of termination of pregnancy was 59%.
Conclusion:
The national birth prevalence for omphalocele in Sweden is 1/10,000 newborn, with high termination rates. Over half of the pregnancies with prenatally diagnosed omphalocele will be terminated. Among those who continue the pregnancy, 1-year survival rates are high.
Type Of Study:
National register study LEVEL OF EVIDENCE: III.
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