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Stereo-Electro-Encephalo-Graphy SEEG With Robotic Assistance in the Presurgical Evaluation of Medical Refractory Epilepsy: A Technical Note
Published on: June 13, 2016
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Implantation of Depth Electrodes in Children Using VarioGuide® Frameless Navigation System: Technical Note
Marcelo Budke1, Josue M Avecillas-Chasin1, Francisco Villarejo1
1Department of Pediatric Neurosurgery, Hospital Niño Jesus, Madrid, Spain.
Operative Neurosurgery (Hagerstown, Md.)
|September 30, 2017
Summary
Frameless stereoelectroencephalography (SEEG) using the VarioGuide® system offers a safe and accurate method for placing epilepsy monitoring electrodes in children. This technique overcomes challenges associated with traditional frame-based methods in pediatric patients.
Area of Science:
- Neurosurgery
- Epileptology
- Medical Device Technology
Background:
- Stereoelectroencephalography (SEEG) is crucial for localizing seizure onset in epilepsy surgery.
- Traditional frame-based SEEG methods present significant challenges in pediatric patients.
- Accurate electrode placement is essential for effective epilepsy diagnosis and treatment.
Purpose of the Study:
- To assess the feasibility and precision of a novel frameless SEEG technique in pediatric epilepsy patients.
- To evaluate the VarioGuide® system for stereotactic navigation in children.
- To establish a safer and more adaptable SEEG implantation procedure for pediatric neurosurgery.
Main Methods:
- Retrospective analysis of pediatric patients undergoing SEEG with the VarioGuide® frameless system.
- Implantation of depth electrodes using percutaneous drilling and bolt insertion.
- Calculation of mean Euclidean distances to compare planned versus actual electrode trajectories and target accuracy.
Main Results:
- 15 pediatric patients (mean age 8 years) received 111 electrodes between May 2011 and December 2015.
- Mean entry point error was 3.64 ± 1.78 mm; mean tip accuracy was 2.96 ± 1.49 mm.
- No significant complications were reported during or after the procedures.
Conclusions:
- The VarioGuide® frameless stereotactic navigation system enables safe and accurate depth electrode placement in pediatric epilepsy patients.
- This frameless approach provides a viable alternative to frame-based methods for pediatric SEEG.
- The system demonstrates high precision, minimizing complications and improving procedural feasibility in children.
