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. 2016 Nov;31(13):1475-1482.
doi: 10.1177/0883073816658659. Epub 2016 Jul 21.

Unique Characteristics of the Photoparoxysmal Response in Patients With Neuronal Ceroid Lipofuscinosis Type 2: Can EEG Be a Biomarker?

Dara V Albert  1 , Han Yin  2 , Emily C De Los Reyes  3 , Jorge Vidaurre  3
Affiliations

Unique Characteristics of the Photoparoxysmal Response in Patients With Neuronal Ceroid Lipofuscinosis Type 2: Can EEG Be a Biomarker?

Dara V Albert et al. J Child Neurol. 2016 Nov.

Erratum in

  • Corrigendum.
    [No authors listed] [No authors listed] J Child Neurol. 2018 Oct;33(11):748. doi: 10.1177/0883073817744636. Epub 2017 Nov 28. J Child Neurol. 2018. PMID: 29182045 No abstract available.

Abstract

Objective: The objective was to identify unique features of the photoparoxysmal response seen in patients with neuronal ceroid lipofuscinosis type 2 as compared to patients with a photoparoxysmal response associated with other epilepsy syndromes.

Methods: Electroencephalograms from patients with neuronal ceroid lipofuscinosis type 2 seen at the authors' institution in the past 10 years as well as electroencephalograms (EEGs) reported to have a photoparoxysmal response during a single year were reviewed.

Results: A photoparoxysmal response was seen in 60% of the patients with neuronal ceroid lipofuscinosis type 2. This was most commonly seen with low frequency intermittent photic stimulation (76%) which often occurred in a time-locked fashion (63%) and was seen on the patient's initial EEG (78%). A unique pattern the authors called "sentinel" discharge was identified in 30% of EEGs in patients with neuronal ceroid lipofuscinosis.

Conclusions: Photoparoxysmal responses in patients with neuronal ceroid lipofuscinosis type 2 have features which are distinguishing from photoparoxysmal responses seen in other epilepsies.

Keywords: electroencephalogram (EEG); neuronal ceroid lipofuscinosis; pediatric epilepsy; photic stimulation; photoparoxysmal response.

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