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Case Report

Deep Brain Stimulation Inactivity Can Produce Unexpected High Electrode Impedances when Reactivated, Leading to a False Conclusion of Wire Fracture

Jaggi J.L. · Baltuch G.H.

Author affiliations

Center for Functional and Restorative Neurosurgery, University of Pennsylvania, Philadelphia, Pa., USA

Related Articles for ""

Stereotact Funct Neurosurg 2005;83:187–189

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Article / Publication Details

First-Page Preview
Abstract of Case Report

Published online: April 06, 2006
Issue release date: April 2006

Number of Print Pages: 3
Number of Figures: 0
Number of Tables: 0

ISSN: 1011-6125 (Print)
eISSN: 1423-0372 (Online)

For additional information: http://www.karger.com/SFN

Abstract

Two months after bilateral DBS surgery in a patient with PD, the stimulator had to be removed temporarily due to an infection. After successful antibiotic treatment, a new stimulator and extension wire were reimplanted 2 months later. Intraoperative testing of the replacement device yielded unusually high electrode impedances and low currents on one lead across all four contacts. Since the results did not change on repeated measurements, a lead fracture was suspected. Visual inspection of the exposed hardware, however, did not reveal any obvious defects. It was then decided to activate the lead for a prolonged time with significant currents. Subsequent impedance measurements yielded normal values and after the patient awoke from anesthesia, good symptom control was again achieved. It is advisable if a lead fracture is suspected under similar circumstances to ‘condition’ the electrode with high currents. Failure to do so could lead to a false conclusion of a lead fracture and unnecessary stereotactic surgery to replace it.

© 2005 S. Karger AG, Basel


Article / Publication Details

First-Page Preview
Abstract of Case Report

Published online: April 06, 2006
Issue release date: April 2006

Number of Print Pages: 3
Number of Figures: 0
Number of Tables: 0

ISSN: 1011-6125 (Print)
eISSN: 1423-0372 (Online)

For additional information: http://www.karger.com/SFN


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