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New study points to potential cause of sudden unexplained death in children

Thousands of families confront the heart-wrenching reality of losing a child to unexplained causes each year. While these tragedies often occur in infants under one year old, known as Sudden Infant Death Syndrome (SIDS), there's a lesser-known but equally devastating occurrence in older children: Sudden Unexplained Death in Childhood (SUDC).

SIDS is the sudden and unexplained death of an infant, primarily during sleep, in the first year of life. It's a diagnosis of exclusion, given when no other cause of death is found. In contrast, SUDC affects toddlers, typically between 1 and 4 years old. It shares similarities with SIDS but occurs in an age group where developmental and environmental factors differ significantly.

The Groundbreaking Study

In a remarkable effort, NYU researchers analyzed video footage of sleeping toddlers aged 13 to 27 months who experienced SUDC. These children, who had reached normal developmental milestones, were found in compromising positions, often face down. The analysis revealed that all five continuously recorded videos showed seizures lasting less than a minute before the child's death.


Uncovering Hidden Clues

What's compelling about this study is its focus on the subtleties of seizures, which are notoriously difficult to detect post-mortem. At least four children showed signs of life for minutes post-seizure, suggesting the seizures impacted their breathing and reflexes, preventing them from repositioning for better air intake.

The Challenge of Detecting Seizures

This groundbreaking research, though limited by the small number of cases and video quality, offers critical insights into the role seizures might play in SUDC. Notably, some of these children had brain changes similar to those seen in epilepsy, broadening the scope of potential causes for these deaths.

Seizures SIDS


The findings raise the possibility that seizures could be behind some toddler deaths previously attributed to other causes like infection or asphyxiation. They also open up discussions about unexplained nighttime deaths in young adults, suggesting a possible link to undetected seizures.


While the study doesn't conclusively prove that seizures cause SUDC, it represents a significant leap in understanding and preventing these rare but tragic events. For grieving families, this research offers a glimmer of hope and potential closure.


A New Horizon in Pediatric Health

This study is not just a scientific achievement; it's a beacon of hope for families and medical professionals. It emphasizes the need for continued research and potentially life-saving discoveries in pediatric health, bringing us closer to a world where no family has to endure the pain of losing a child to unexplained causes.

Discover More at Onoco's Knowledge Hub

Interested in further enriching your understanding of a child's health and development? Onoco’s Knowledge Hub is your go-to resource! It’s a dedicated space with content, insights, and expert advice on many parenting topics, including baby care, baby's sleep, nutrition and so much more. For easy access to our Knowledge Hub, download the Onoco app under this link and start your journey of discovery today!

References: Gould, L., Reid, C. A., Rodriguez, A. J., Devinsky, O., & for SUDC Video Working Group (2024). Video analyses of sudden unexplained deaths in toddlers. Neurology, 102(3), article e208038. https://www.neurology.org/doi/10.1212/WNL.0000000000208038

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