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Sudden unexplained death in childhood

Field	Value
name	Sudden unexplained death in childhood
field	Pediatrics
symptoms	Usually none but may be preceded by a fever
complications	Death
onset	Sudden
duration	Unknown
types	Unknown
causes	Not definitive, most likely heart arrhythmias, seizures, or a mix
risks	Family history of sudden death
diagnosis	Unexplained death of a child of 1–18 years
prevention	None
treatment	None
medication	None
prognosis	Death
frequency	~1.2 out of 100,000
deaths	~1.2 out of 100,000

Sudden unexplained death in childhood (SUDC) is the death of a child over the age of 12 months which remains unexplained after a thorough investigation and autopsy. There has not been enough research to identify risk factors, common characteristics, or prevention strategies for SUDC.

SUDC is similar in concept to sudden infant death syndrome (SIDS). Like SIDS, SUDC is a diagnosis of exclusion, the concrete symptom of both being death. However, SIDS is a diagnosis specifically for infants under the age of 12 months while SUDC is a diagnosis for children 12 months and older. The causes of SIDS and SUDC are not definitively known but there are good chances heart arrhythmias and seizures are the main causes. Although it can happen to any child under the age of 18 months (after which the deaths are classified as sudden arrhythmic death syndrome), it is most common in those aged between 1–4 years, where, according to the SUDC foundation, it is the 5th leading cause of death in this age group.

Hypotheses

Researchers are exploring a possible connection between sudden unexplained death in toddlers, febrile seizures, and hippocampal anomalies. The occurrence of fever before the sudden deaths later in sleep, could explain the febrile seizure hypotheses {{cite Hugh journal|last=Kinney|first=Hannah C.|author2=Chadwick, Amy E. |author3=Crandall, Laura A. |author4=Grafe, Marjorie |author5=Armstrong, Dawna L. |author6=Kupsky, William J. |author7=Trachtenberg, Felicia L. |author8= Krous, Henry F. |title=Sudden Death, Febrile Seizures, and Hippocampal and Temporal Lobe Maldevelopment in Toddlers: A New Entity|journal=Pediatric and Developmental Pathology|date=1 December 2009|volume=12|issue=6|pages=455–463|doi=10.2350/08-09-0542.1|pmid=19606910|pmc=3286023}}

Epidemiology

SUDC is rare, with a reported incidence in the United States of 1.2 deaths per 100,000 children, compared to 54 deaths per 100,000 live births for SIDs. There are approximately 400 deaths per year of SUDC in the U.S, with over 200 of these cases being the children aged 1–4 years. SUDC deaths have occurred at the following sites:

Death at home, history provided: 79%
Crib or bassinet: 54%
Adult bed: 36%

The placed and found positions were as follows:

Placed supine, side, prone*: 10%, 2%, 3%
Found prone: 89%
Found face position: down, side: 10%, 8%
Co-sleeping, sweating when found: 3%, 1% *applies only to youngest children

History

At the SIDS Alliance national convention in Atlanta, GA in 1999 Dr. Henry Krous gave a presentation titled "Post-Infancy SIDS: Is it on the rise?" This led to the beginning of the San Diego SUDC Research Project. The first definition of SUDC was published in 2005 in Pediatric and Developmental Pathology.

References

Holm, Ingrid A.. (1 April 2012). "Inheritance of Febrile Seizures in Sudden Unexplained Death in Toddlers". Pediatric Neurology.
"Fact Sheet – Sudden Unexplained Death In Childhood (SUDC)".
"Sudden Unexplained Death in Childhood".
"History – Sudden Unexplained Death in Childhood".
"What should the nurse teach the parents about preventing sudden infant death syndrome (SIDS)".
Krous, Henry F.. (14 July 2005). "Sudden Unexpected Death in Childhood:A Report of 50 Cases". Pediatric and Developmental Pathology.

Info: Wikipedia Source

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