Pediatric occipital lobe epilepsy: A modern review of etiological classification, management, and outcomes

Table 2 Current literature review snapshot

Domain	Key finding	Ref.	Level of evidence
Nosology	Occipital syndromes are formally categorized as SeLEAS (autonomic), COVE (visual), and POLE (photosensitive) within SeLFE	Specchio et al[15]; Wirrell et al[20]	V (ILAE guidelines)
Prognosis: Self-limited	High remission rates by puberty; however, “self-limited” does not equate to “benign”-deficits in attention, language, and visuospatial processing are documented in a substantial minority. (pediatric-specific data)	Özkul et al[3]; Wirrell et al[20]	IIb (cohort)
Prognosis: Structural	Characterized by earlier onset, higher risk of intellectual disability, and pharmacoresistance. Lower remission rates, strong correlation with MRI-detected lesions. (pediatric-specific data)	Taylor et al[5]; Specchio et al[15]; Bartolini et al[21]	IIb (cohort)
Neurocognition	Deficits in executive functioning, visuo-spatial memory, and language are prevalent, particularly if seizure onset occurs before age 5 years. (pediatric data; limited by small sample sizes)	Specchio et al[15]; Traianou et al[47]	IIb-V
Emerging imaging	MEG and FDG-PET improve localization in MRI-negative refractory cases. 7T MRI detects lesions invisible at 1.5T/3T in up to 65% of previously MRI-negative patients (mostly adult/mixed cohorts; pediatric data extrapolated)	Carrette and Stefan[22]; Bacon et al[23]; Feldman et al[24]	IIa-IIb
Surgery	Lesionectomy/topectomy yields 69% Engel Class I seizure freedom in structural OLE at 80 months. Visual field deficits occur in 42% postoperatively (adult/mixed cohorts; pediatric data limited)	Detchou and Barrie[25]; Jobst et al[27]; Binder et al[44]	IIb (surgical cohort)

Levels of evidence per Oxford CEBM framework: Ia [SR/meta-analysis of randomized controlled trials (RCT)], Ib (individual RCT), IIa (controlled cohort), IIb (observational cohort), III (case-control/diagnostic), IV (case series), V (expert opinion/guidelines). OLE: Occipital lobe epilepsy; MRI: Magnetic resonance imaging; SeLFE: Self-limited focal epilepsy of childhood; SeLEAS: Self-limited epilepsy with autonomic seizures; COVE: Childhood occipital visual epilepsy; POLE: Photosensitive occipital lobe epilepsy.