Andrea Giorni1, François Windels2, Peter G Stratton1, Raymond Cook3, Paul Silberstein3, Terrence Coyne4, Peter A Silburn4, Pankaj Sah1. 1. Queensland Brain Institute, The University of Queensland, Brisbane, Queensland, Australia; Asia Pacific Centre for Neuromodulation, Queensland Brain Institute, Brisbane, Queensland, Australia. 2. Queensland Brain Institute, The University of Queensland, Brisbane, Queensland, Australia; Asia Pacific Centre for Neuromodulation, Queensland Brain Institute, Brisbane, Queensland, Australia. Electronic address: f.windels@uq.edu.au. 3. Royal North Shore and North Shore Private Hospitals, Sydney, New South Wales, Australia. 4. Queensland Brain Institute, The University of Queensland, Brisbane, Queensland, Australia; Asia Pacific Centre for Neuromodulation, Queensland Brain Institute, Brisbane, Queensland, Australia; St. Andrews War Memorial Hospital, Spring Hill, Queensland, Australia.
Abstract
OBJECTIVES: Our goal was to provide a detailed analysis of neurons' electrophysiological activity recorded in sub-territories of Globus pallidus internus (GPi) used as Deep Brain Stimulation (DBS) targets for these clinical conditions to potentially assist electrode targeting. METHODS: We used intra-operative microelectrode recording during stereotactic neurosurgery to guide implantation of DBS lead. RESULTS: Units in the medial anterior part of GPi of 7 Tourette's syndrome patients under general anesthesia were firing at mean and median rate of 32.1 and 21 Hz respectively (n = 101), with 45% of spikes fired during bursts and 21.3 bursts per minute. In the latero-posterior part of GPi of 7 dystonic patients under local anesthesia the mean and median activity were 46.1 and 30.6 Hz respectively (n = 27), and a mean of 21.7 bursts per minute was observed, with 30% of all spikes occurring during these bursts. CONCLUSION: Units activity pattern - slow-regular, fast-irregular or fast-regular were present in different proportions between the two targets. SIGNIFICANCE: The electrophysiological characteristics of the medial-anterior part of GPi and its latero-posterior portion can be used to assist DBS electrode targeting and also support the refinement of pathophysiological models of Tourette's syndrome and Dystonia.
OBJECTIVES: Our goal was to provide a detailed analysis of neurons' electrophysiological activity recorded in sub-territories of Globus pallidus internus (GPi) used as Deep Brain Stimulation (DBS) targets for these clinical conditions to potentially assist electrode targeting. METHODS: We used intra-operative microelectrode recording during stereotactic neurosurgery to guide implantation of DBS lead. RESULTS: Units in the medial anterior part of GPi of 7 Tourette's syndromepatients under general anesthesia were firing at mean and median rate of 32.1 and 21 Hz respectively (n = 101), with 45% of spikes fired during bursts and 21.3 bursts per minute. In the latero-posterior part of GPi of 7 dystonicpatients under local anesthesia the mean and median activity were 46.1 and 30.6 Hz respectively (n = 27), and a mean of 21.7 bursts per minute was observed, with 30% of all spikes occurring during these bursts. CONCLUSION: Units activity pattern - slow-regular, fast-irregular or fast-regular were present in different proportions between the two targets. SIGNIFICANCE: The electrophysiological characteristics of the medial-anterior part of GPi and its latero-posterior portion can be used to assist DBS electrode targeting and also support the refinement of pathophysiological models of Tourette's syndrome and Dystonia.
Authors: Andrea A Kühn; R Mark Richardson; Wolf-Julian Neumann; Robert S Turner; Benjamin Blankertz; Tom Mitchell Journal: Neurotherapeutics Date: 2019-01 Impact factor: 7.620
Authors: Natalia Szejko; Yulia Worbe; Andreas Hartmann; Veerle Visser-Vandewalle; Linda Ackermans; Christos Ganos; Mauro Porta; Albert F G Leentjens; Jan-Hinnerk Mehrkens; Daniel Huys; Juan Carlos Baldermann; Jens Kuhn; Carine Karachi; Cécile Delorme; Thomas Foltynie; Andrea E Cavanna; Danielle Cath; Kirsten Müller-Vahl Journal: Eur Child Adolesc Psychiatry Date: 2021-10-04 Impact factor: 4.785