Networks through the lens of high-frequency oscillations

Area of Science:

• Neuroscience
• Epileptology
• Biomarker Discovery

Background:

• Accurate delineation of the epileptogenic network remains a challenge.
• High-frequency oscillations (HFOs) are emerging as potential biomarkers for epileptogenesis.
• Pathological HFOs correlate with seizure onset zones and epileptogenic tissue.

Purpose of the Study:

• To review the literature on HFO-associated networks.
• To highlight the role of HFO networks in defining epileptogenic networks.
• To explore the significance of HFO networks in surgical planning for epilepsy.

Main Methods:

• Literature review of studies investigating HFOs and epileptogenic networks.
• Analysis of spatiotemporal organization of HFOs.
• Synthesis of findings related to HFOs, seizure onset, and surgical outcomes.

Main Results:

• Pathological HFOs are linked to seizure onset and epileptogenic tissue.
• Resection of HFO-rich areas is associated with positive surgical outcomes.
• HFOs exhibit spatiotemporal organization, forming networks that may define epileptogenic zones.

Conclusions:

• HFOs represent a promising biomarker for the epileptogenic network.
• Understanding HFO networks is crucial for accurate surgical planning in epilepsy.
• Further research into HFO network dynamics can refine epilepsy treatment strategies.