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Wireless fast-scan cyclic voltammetry to monitor adenosine in patients with essential tremor during deep brain stimulation.

ABSTRACT: Essential tremor is often markedly reduced during deep brain stimulation simply by implanting the stimulating electrode before activating neurostimulation. Referred to as the microthalamotomy effect, the mechanisms of this unexpected consequence are thought to be related to microlesioning targeted brain tissue, that is, a microscopic version of tissue ablation in thalamotomy. An alternate possibility is that implanting the electrode induces immediate neurochemical release. Herein, we report the experiment performing with real-time fast-scan cyclic voltammetry to quantify neurotransmitter concentrations in human subjects with essential tremor during deep brain stimulation. The results show that the microthalamotomy effect is accompanied by local neurochemical changes, including adenosine release.

SUBMITTER: Chang SY 

PROVIDER: S-EPMC3538486 | biostudies-literature | 2012 Aug

REPOSITORIES: biostudies-literature

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Wireless fast-scan cyclic voltammetry to monitor adenosine in patients with essential tremor during deep brain stimulation.

Chang Su-Youne SY   Kim Inyong I   Marsh Michael P MP   Jang Dong Pyo DP   Hwang Sun-Chul SC   Van Gompel Jamie J JJ   Goerss Stephan J SJ   Kimble Christopher J CJ   Bennet Kevin E KE   Garris Paul A PA   Blaha Charles D CD   Lee Kendall H KH  

Mayo Clinic proceedings 20120716 8

Essential tremor is often markedly reduced during deep brain stimulation simply by implanting the stimulating electrode before activating neurostimulation. Referred to as the microthalamotomy effect, the mechanisms of this unexpected consequence are thought to be related to microlesioning targeted brain tissue, that is, a microscopic version of tissue ablation in thalamotomy. An alternate possibility is that implanting the electrode induces immediate neurochemical release. Herein, we report the  ...[more]

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