Position-Dependent Dysfunction of Deep Brain Stimulation in Tourette Syndrome: Diagnostic Clues
Background: Detection of defective deep brain stimulation (DBS) contacts/electrodes is sometimes challenging.
Case Report: We report a patient with Tourette syndrome (TS), who presented with abrupt tic increase and mild generalized headache 9 years after DBS implantation. On the suspicion of a hardware defect, a fracture of the DBS electrode and extension lead was ruled out by radiography and standard implantable pulse generator readouts. Further investigation revealed position-dependent modifiable therapeutic impedances, suggesting an impaired contact of the extension lead/adaptor. After replacement normal impedances were recorded, and the patient fully recovered.
Discussion: In DBS dysfunction with inconspicuous hardware check, position-dependent defects might be suspected.
Keywords: Deep brain stimulation, hardware complications, headache, impedance, Tourette syndrome
Citation: Wolf ME, Majewski O, Müller-Vahl KR, Blahak C, Schulte D-M, Krauss JK. Position-dependent dysfunction of deep brain stimulation in Tourette syndrome: Diagnostic clues. Tremor Other Hyperkinet Mov. 2019; 9. doi: 10.7916/tohm.v0.713