Monitoring of congenital cardiac defects |
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Authors: | Lars Erik Carlgren Anders Ericson Prof Bengt Källén |
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Institution: | (1) Department of Pediatrics I, Division of Cardiology, University of Gothenburg, Gothenburg;(2) National Board of Health and Welfare, Bureau FAP 3, Stockholm;(3) Department of Embryology, University of Lund, Biskopsgatan 7, S-22362 Lund, Sweden |
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Abstract: | Summary An effort was made to identify all infants born with a congenital cardiac defect in 1981 in Sweden by using four different
registries: the Swedish Registry of Congenital Malformations, the Medical Birth Registry, the Registry of Death Certificates,
and a specially designed Child Cardiology Registry. All infants diagnosed before the age of one year at one of the five child
cardiology clinics in Sweden were reported to the latter registry. This registry, together with the Congenital Malformation
Registry, can be used for surveillance as they together cover 85%–90% of all severe cases identified. The data quality in
the Medical Birth Registry is too low to permit meaningful surveillance.
A total of 853 infants with a diagnosis of a congenital cardiac defect were identified. This represents 9 per 1000 newborns.
Many of the cases were dubious, but the diagnosis was stated as probable in 708 (7.6 per 1000); 146 infants died. Cardiac
diagnoses were stored in the Child Cardiology Registry and in the Registry of Congenital Malformations as ISC codes. A Monitor
Code is described that can be used for grouping and monitoring of diagnoses. Using these codes, data in the Child Cardiology
Registry for 1981–1983 were analyzed and epidemiologic information on maternal age and parity, sex rate, and birth weight
distribution is given. |
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Keywords: | Congenital heart defects Registry Monitoring |
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