# Video-EEG/polygraphy in status epilepticus

## TL;DR

This paper discusses how continuous Video-EEG/Polygraphy helps in accurately diagnosing and managing Status Epilepticus, avoiding misdiagnosis and harmful treatments.

## Contribution

The paper introduces the use of Video-EEG/Polygraphy as a standard diagnostic tool in ambiguous cases of Status Epilepticus.

## Key findings

- V-EEG/PG objectively confirms seizure cessation and prevents progression to refractory SE.
- It aids in distinguishing SE from metabolic encephalopathies, avoiding unnecessary medications.
- V-EEG/PG ensures diagnostic accuracy by differentiating true SE from behavioral mimics.

## Abstract

The management of Status Epilepticus (SE) is anchored by time-dependent protocols, recognizing that time is the primary prognostic determinant. Acute care application is complicated by critical diagnostic ambiguities, risking delays and therapeutic errors. This narrative analysis highlights the role of continuous Video-EEG/Polygraphy (V-EEG/PG) in resolving key practical challenges in SE management.

We conducted a retrospective narrative analysis of five illustrative clinical vignettes from a tertiary-care center. Cases were selected to address the three major management challenges: Time (Nonconvulsive SE vs. stupor), Etiology (SE vs. Toxic-Metabolic Encephalopathies), and Differential Diagnosis (seizures vs. behavioral mimics). The V-EEG/PG utility was assessed based on its capacity to provide objective electro-clinical correlation, guiding timely therapeutic escalation or de-escalation.

V-EEG/PG provided critical clinical insights by: (1) Objectively Confirming Cessation, preventing silent progression to Refractory SE. (2) Guiding Etiological Triage, aiding in the exclusion of SE/NCSE in metabolic disease, avoiding the harmful use of high-dose Anti-Seizure Medications and unnecessary anesthetic exposure. (3) Ensuring Diagnostic Accuracy, serving as highly reliable standard for differentiating true SE from mimics, thus safeguarding patients from chronic misdiagnosis and pharmacological toxicity.

Effective SE management should ideally incorporate a shift from a purely chronological approach to an electro-clinical strategy. Continuous V-EEG/PG is a pivotal diagnostic asset that resolves key ambiguities. The evidence suggests that V-EEG/PG should be considered a standard of care in specific high-risk and ambiguous acute care settings, particularly in patients with stupor/coma post-treatment, altered mental status in metabolic disease, or prolonged, non-stereotyped motor events.