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[Survival in children with birth defects during first year of their life]
1Oddĕlení lékarské genetiky, Fakultní Thomayerova nemocnice, Praha. vladimir.gregor@ftn.cz
Insights
Birth defects significantly contribute to infant mortality. Survival rates vary by defect type, with congenital hydrocephalus and neural tube defects showing the lowest first-year survival. Prenatal diagnostics have improved significantly.
Area of Science:
- Medical Genetics
- Pediatric Mortality
- Congenital Anomalies
Context:
- Retrospective analysis of birth defects in the Czech Republic (1994-2006).
- Utilized national registers and medical genetics data.
- Examined over 1.1 million live births.
Purpose:
- To analyze infant mortality associated with specific birth defects within the first year of life.
- To assess survival rates for various congenital anomalies.
- To evaluate trends in prenatal diagnostics efficiency.
Summary:
- Over 42,000 infants had birth defects, with incidence rates varying by year.
- First-year survival was lowest for congenital hydrocephalus (72%) and neural tube defects (71%).
- Gastro-intestinal and abdominal wall defects had higher survival rates (82-91%).
Impact:
- Birth defects are a major factor in infant mortality and morbidity.
- Demonstrates a significant increase in the effectiveness of prenatal diagnostics between 1980-1993 and 1994-2006.
- Highlights the importance of early detection and intervention for congenital anomalies.
Objective:
To analyze infant mortality in children with selected types of birth defects during a first year of their life.
Design:
A retrospective study with an analysis of prenatal and postnatal occurrence of birth defects in the Czech Republic during 1994 - 2006.
Setting:
Department of Medical Genetics, Thomayer's University Hospital, Prague. Chair of Medical Genetics, Postgraduate Medical Institute, Prague.
Methods:
Data were collected from national registers (Institute of Health Information and Statistics) and particular departments of medical genetics. A study of frequency of 14 selected birth defects was performed along with an analysis of survival and mortality in children with birth defects during a first year of their life.
Results:
In 1994 - 2006, totally 1 132 567 children were born in the Czech Republic, out of which more than 42 000 with a birth defect. A mean incidence was 339 per 10 000 live births with a maximum of 41458 per 10 000 in 2003. In correctible defects, first year survival was lowest in congenital hydrocephalus (72%) and neural tube defects (anencephaly excluded) (71%). In congenital defects of gastro-intestinal tract and in abdominal wall defects survival was between 82-91%.
Conclusion:
Birth defects present an important contribution to an infant mortality and morbidity in the first year of life. In a comparison of 1980 - 1993 and 1994 - 2006 periods, a significant increase of prenatal diagnostics efficiency was recorded.
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