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Research paper

Evolution into spike-and-wave activation in sleep in patients with self-limited focal epilepsies

Longitudinal EEG study of how SWAS evolves over time in DEE-SWAS/EE-SWAS - typical age of onset, peak SWI, duration, resolution patterns, and relapse characteristics.

Indexed context

Iris Selfe, et al.

swaseegevolutionnatural-historylongitudinal2026

Markdown path

content/research/papers/2026-iris-selfe-evolution-swas.md

Findings

Longitudinal EEG study of how SWAS evolves over time in DEE-SWAS/EE-SWAS - typical age of onset, peak SWI, duration, resolution patterns, and relapse characteristics.

Why it may matter for Levi

Provides natural-history calibration for Levi's current post-pulse electrographic-suppression status. Useful for estimating relapse risk window and for timing the next quantitative SWI/HFO follow-up EEG.

Paper text

İriş et al. (2026) — SeLFE evolution into SWAS

Source

  • Seizure 135:34-38, 2026.

Why in corpus

Demonstrates that SWAS can evolve from multiple self-limited focal epilepsy syndromes, not just SeLECTS. Critically, recurrent SWAS can occur years after apparent resolution.

Key findings

  • SWAS can develop in SeLECTS, SeLEAS (Self-limited Epilepsy with Autonomic Seizures), and COVE (Childhood Occipital Visual Epilepsy) — not SeLECTS alone.
  • Recurrent SWAS may occur years after apparent resolution — requires prolonged longitudinal follow-up.

Levi-relevant takeaways

  • Most clinically actionable finding: recurrent SWAS after initial remission is a documented phenomenon. Supports the priority of follow-up prolonged EEG monitoring at regular intervals during the electrographic-remission period — not just symptom-triggered re-imaging.
  • Reinforces the value of keeping the next quantitative SWI / HFO EEG appointment on the calendar and pulling it forward if any behavioral-regression signs suggest relapse.
  • Broadens the phenotypic precursor pool — Levi's original seizure semiology was not classic SeLECTS, but the evolution into DEE-SWAS can come from multiple starting points.