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Surveillance of congenital anomalies in Hungary
Insights
The Hungarian Congenital Malformation Register monitors over 4000 infants annually for birth defects. Despite detecting four clusters, the causes of these congenital anomalies remain unidentified.
Area of Science:
- Public Health
- Epidemiology
- Medical Genetics
Background:
- Congenital anomalies surveillance is crucial for early detection of clusters and medical care.
- The Hungarian Congenital Malformation Register has collected data since 1971.
- Understanding the etiology of congenital anomalies is vital for prevention.
Purpose of the Study:
- To describe the functions and operations of the Hungarian Congenital Malformation Register.
- To report on the occurrence and patterns of congenital anomalies in Hungary.
- To highlight the importance of monitoring multiple malformations and syndromes.
Main Methods:
- Data collection from obstetricians, pediatricians, and pathologists for infants diagnosed from birth to one year.
- Establishment of a separate Monitor for congenital malformations detectable within the first seven days of life.
- Focus on identifying and investigating clusters of congenital anomalies and multiple malformations.
Main Results:
- The Register records over 4000 malformed infants annually, representing over 28% occurrence.
- Notification validity and completeness vary depending on the malformation type.
- Four real clusters of congenital anomalies have been identified, but their causes are undetermined.
- Emphasis on multiple malformations (syndromes) due to the teratogenic nature of known human teratogens.
Conclusions:
- The Hungarian Congenital Malformation Register is a valuable tool for monitoring and researching congenital anomalies.
- Continued surveillance is necessary to understand the causes of congenital anomalies and identified clusters.
- Further research into teratogens and their role in producing multiple malformations is warranted.
Abstract:
Surveillance of congenital anomalies has various functions viz. monitoring (to detect clusters as soon as possible), registering (to contribute to medical care and to provide material for scientific research) and informative. The Hungarian Congenital Malformation Register records the occurrence of malformed babies diagnosed from birth to 1 year of age. The Register has 3 sources (obstetricians, paediatricians, pathologists) and has registered since 1971 over 4000 malformed infants annually, an occurrence of over 28%. Validity and completeness of notification depend on the type of malformation. A separate Monitor started on January 1st, 1973, is confined to congenital malformations detectable unequivocally and readily during the first seven days of life. So far four real clusters occurred in Hungary but their causes could not be found. Particular stress has been laid upon multiple malformations (syndromes) since all known teratogens affecting humans produce multiple malformations.