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A Piglet Model of Neonatal Hypoxic-Ischemic Encephalopathy
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Sudden unexpected death in infancy in Denmark.

Bo Gregers Winkel1, Anders Gaarsdal Holst, Juliane Theilade

  • 1The Danish National Research Foundation Centre for Cardiac Arrhythmia (DARC), Copenhagen, Denmark. bowinkel@dadlnet.dk

Scandinavian Cardiovascular Journal : SCJ
|December 8, 2010
PubMed
Summary

Sudden unexpected death in infancy (SUDI) is a significant concern, often caused by cardiac issues or SIDS. Autopsies are crucial for accurate diagnosis, as registry data for SIDS is unreliable.

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Area of Science:

  • Pediatric Pathology
  • Forensic Medicine
  • Public Health

Background:

  • Sudden unexpected death in infancy (SUDI) and sudden infant death syndrome (SIDS) incidence varies across studies.
  • Assessing non-autopsied cases presents diagnostic challenges.

Purpose of the Study:

  • Investigate the causes of sudden infant death nationwide.
  • Validate the accuracy of the ICD-10 code for SIDS (R95) in the Danish Cause of Death registry.

Main Methods:

  • Retrospective analysis of infant deaths (<1 year) in Denmark (2000-2006).
  • Review of all death certificates and autopsy reports.

Main Results:

  • 192 SUDI cases identified (10% of total deaths; 0.42/1000 births), with 87% undergoing autopsy.
  • Sudden infant death syndrome (SIDS) accounted for 49% of autopsied SUDI cases (5% of all deaths; 0.22/1000 births).
  • Cardiac causes were identified in 24% of SUDI cases; 30% of SIDS cases were misclassified in the registry.

Conclusions:

  • Sudden unexpected death in infancy (SUDI) represents a substantial proportion of infant mortality.
  • Cardiac disease and sudden infant death syndrome (SIDS) are primary causes of SUDI.
  • Incomplete autopsy data and inaccurate registry classifications hinder precise SIDS assessment.