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Intra-Operative Behavioral Tasks in Awake Humans Undergoing Deep Brain Stimulation Surgery
Published on: January 6, 2011
Transient, symptomatic, post-operative, non-infectious hypodensity around the deep brain stimulation (DBS) electrode
Milind Deogaonkar1, Jules M Nazzaro, Andre Machado
1Center for Neurological Restoration, Department of Neurosurgery, Cleveland Clinic Foundation, 9500 Euclid Avenue, S31, Cleveland, Ohio 44195, USA. deoganm@ccf.org
Summary
Symptomatic edema around deep brain stimulation (DBS) leads is rare. This self-limiting condition resolved without intervention, suggesting careful monitoring over premature electrode removal.
Area of Science:
- Neurosurgery
- Neurology
- Medical Imaging
Background:
- Deep brain stimulation (DBS) is a therapeutic option for neurological disorders.
- Post-operative complications require careful evaluation and management.
Observation:
- Eight patients exhibited symptomatic, self-limiting peri-electrode edema following DBS implantation.
- Imaging revealed hypodense white matter areas surrounding the DBS electrode.
- Infection was ruled out through comprehensive local and systemic testing.
Findings:
- The observed edema demonstrated distinct morphological characteristics.
- Edema resolved spontaneously over time in all cases.
- No surgical intervention was required for edema resolution.
Implications:
- The transient and benign nature of this edema suggests a non-infectious etiology.
- These findings caution against premature DBS electrode explantation in similar cases.
- Further research into the obscure etiology of peri-electrode edema is warranted.

