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How to Obtain Reliable Visual Event-related Potentials in Newborns
Published on: October 24, 2019
Neonatal seizures: eyes open or closed?
Florian Bauder1, Gabriele Wohlrab, Bernhard Schmitt
1University Children's Hospital, Zurich, Switzerland.
Insights
Persistent eye closure during a suspected seizure event in newborns suggests it is unlikely to be an electroclinical seizure. This finding is consistent with observations in infants, highlighting a potential diagnostic indicator.
Area of Science:
- Neonatal neurology
- Pediatric epilepsy
- Clinical neurophysiology
Background:
- Persistent eye closure during paroxysmal events is known to make seizures unlikely in infants.
- This observation has clinical implications for differentiating seizure activity from other events.
Purpose of the Study:
- To investigate whether persistent eye closure during paroxysmal events is also indicative of unlikely seizures in neonates.
- To evaluate the diagnostic utility of eye status during suspected seizures in newborns.
Main Methods:
- Retrospective review and classification of archived neonatal seizures from a video database.
- Inclusion criteria: electroclinical seizures only (excluding electrographic or non-EEG-correlated clinical seizures).
- Assessment of eye status (open or closed) during 131 electroclinical seizures in 46 neonates.
Main Results:
- Eyes were open in 115 (88%) of assessed seizures.
- Eyes were persistently closed in 10 seizures (8%).
- All 10 seizures with persistent eye closure were identified as clonic seizures.
Conclusions:
- Persistent eye closure during a suspected seizure event in a neonate makes an electroclinical seizure unlikely.
- The findings support the hypothesis that eye status can aid in the diagnosis of neonatal seizures.
- Further research may refine the use of eye closure as a clinical sign in neonatal neurology.
Purpose:
It has been shown that persistent eye closure during paroxysmal events in infants makes seizures unlikely. Our study aims to assess whether this is also true in neonates.
Methods:
We reviewed and classified all archived neonatal seizures in our video database, considering electroclinical seizures only and excluding electrographic seizures and clinical seizures without ictal change in EEG. We assessed whether eyes were open during the seizure. One hundred and thirty-one electroclinical seizures (clonic, focal and generalized tonic, tonic-clonic, generalized myoclonic, subtle and spasms) in 46 neonates were included.
Results:
In 115 (88%) seizures, eyes were open; in 10 seizures, they were closed; and in six seizures, eye opening could not be evaluated. All 10 seizures with persistent eye closure were clonic seizures.
Conclusions:
Our data demonstrate that persistent eye closure during an event suggestive of a seizure in a newborn makes an electroclinical seizure unlikely.
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