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Research paper

Perinatal thalamic injury: MRI predictors of electrical status epilepticus in sleep and long-term neurodevelopmental outcomes

Cohort of children with perinatal thalamic injury; a substantial subset developed ESES. MRI features (lesion size, bilaterality, thalamocortical tract involvement) predicted ESES progression. Reinforces thalamocortical circuit disruption as a core pathogenic axis even for small primary lesions.

Indexed context

van den Munckhof B, et al.

esesdee-swasperinatal-thalamic-injurymristructural-etiology

Markdown path

content/research/papers/2020-van-den-munckhof-perinatal-thalamic-injury-mri-eses.md

Findings

Cohort of children with perinatal thalamic injury; a substantial subset developed ESES. MRI features (lesion size, bilaterality, thalamocortical tract involvement) predicted ESES progression. Reinforces thalamocortical circuit disruption as a core pathogenic axis even for small primary lesions.

Why it may matter for Levi

Levi's April 2026 MRI shows no thalamic injury, no hemorrhage, and normal hippocampi. Reinforces the Viswanathan 2024 finding that structural DEE-SWAS clusters on the thalamocortical network and supports Levi's placement in the structurally-unremarkable majority. The specialized pediatric neuroradiology re-read should specifically evaluate subtle thalamocortical connectivity features.

Paper text

van den Munckhof et al. (2020) — Perinatal thalamic injury: MRI predictors of ESES

Source

Why this paper is in the corpus

Establishes perinatal thalamic injury as a dominant structural risk factor for ESES and identifies specific MRI features that predict progression from isolated thalamic injury to the full ESES syndrome. Supports the framework that thalamocortical circuit disruption is a core pathogenic axis for DEE-SWAS even when the primary lesion is small.

Key findings

  • In a cohort of children with perinatal thalamic injury, a substantial subset developed ESES.
  • MRI features predicting ESES progression included lesion size, bilaterality, and specific patterns of thalamocortical tract involvement.
  • Reinforces the model that injury to the thalamus disrupts normal sleep-spindle and slow-oscillation generation and leads to aberrant spike-wave activation in sleep.

Levi-relevant takeaways

  • Levi's April 2026 MRI (UCSF) showed nonspecific R>L patchy periventricular deep white-matter FLAIR signal but no frank thalamic injury, no hemorrhage, no stroke, and normal hippocampi. The classical perinatal thalamic injury pattern described here is not present in Levi.
  • Reinforces the Viswanathan 2024 observation that structural DEE-SWAS cases cluster on the thalamocortical network; Levi's structurally unremarkable MRI is consistent with a non-structural etiology and supports continued emphasis on mosaic-sensitive genetic testing rather than a repeat structural hunt.
  • The specialized pediatric neuroradiology re-read (already on the priority list) should specifically consider thalamocortical connectivity features that might be subtle on a general read.

Citation note

Referenced as [7] in the 2026-04-21 user-supplied comprehensive DEE-SWAS / ESES / CSWS research report.