Work

Responsive Neurostimulation Therapy Outcomes in Two Small Bilateral Thalamic and Corticothalamic Subgroups of Patients with Drug-Resistant Epilepsy—A Single-Center Experience

Year: 2026

Type: article

Abstract: Responsive neurostimulation (RNS) is a neuromodulation option for treatment of drug-resistant epilepsy (DRE). There is limited data reviewing bilateral thalamic and corticothalamic RNS therapy response. We performed a retrospective analysis of 21 patients undergoing RNS implantation with either bilateral thalamic (n = 17) or corticothalamic (n = 4) leads and ≥6 months of follow-up. Patients were classified as responders (≥50% seizure frequency reduction) vs. non-responders (<50% seizure frequency reduction). Among the bilateral thalamic cohort, 12/17 (70.6%) patients were responders, and 15/17 (88.2%) patients reported reduction in seizure severity. Pre-RNS seizure frequency was higher in bilateral thalamic nonresponders, although not found to be significant (median 13 vs. 30 seizures per month, p = 0.20). Among the corticothalamic cohort, 3/4 (75.0%) patients were responders, and all patients demonstrated improvement in seizure severity. These findings suggest that although bilateral thalamic targets were selected at our center more often, both bilateral thalamic and corticothalamic RNS approaches provided seizure frequency reduction. The majority of patients, including non-responders, reported seizure severity alleviation.

Source: NeuroSci

DOI: 10.3390/neurosci7040092

Authors: Ramya Krothapally, Ghazala Perven, Divya Veerapaneni, Irina Podkorytova

Institution: The University of Texas Southwestern Medical Center

Language: English

Topic: Epilepsy research and treatment

Subfield: Psychiatry and Mental health

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: gold

Estimated APC paid: $1,207