Experience with Microelectrode Guided Subthalamic Nucleus Deep Brain Stimulation

2006 ◽  
Vol 58 (suppl_1) ◽  
pp. ONS-96-ONS-102 ◽  
Author(s):  
Ramin Amirnovin ◽  
Ziv M. Williams ◽  
G. Rees Cosgrove ◽  
Emad N. Eskandar
Keyword(s):  
Deep Brain Stimulation ◽  
Parkinson Disease ◽  
Subthalamic Nucleus ◽  
Brain Stimulation ◽  
Pulse Generator ◽  
Computed Tomographic ◽  
Pass Through ◽  
The Right ◽  
Stn Dbs ◽  
Deep Brain

Abstract OBJECTIVE: Subthalamic deep brain stimulation (DBS) has rapidly become the standard surgical therapy for medically refractory Parkinson disease. However, in spite of its wide acceptance, there is considerable variability in the technical approach. This study details our technique and experience in performing microelectrode recording (MER) guided subthalamic nucleus (STN) DBS in the treatment of Parkinson disease. METHODS: Forty patients underwent surgery for the implantation of 70 STN DBS electrodes. Stereotactic localization was performed using a combination of magnetic resonance and computed tomographic imaging. We used an array of three microelectrodes, separated by 2 mm, for physiological localization of the STN. The final location was selected based on MER and macrostimulation through the DBS electrode. RESULTS: The trajectory selected for the DBS electrode had an average pass through the STN of 5.6 ± 0.4 mm on the left and 5.7 ± 0.4 mm on the right. The predicted location was used in 42% of the cases but was modified by MER in the remaining 58%. Patients were typically discharged on the second postoperative day. Eighty-five percent of patients were sent home, 13% required short-term rehabilitation, and one patient required long-term nursing services. Seven complications occurred over 4 years. Four patients suffered small hemorrhages, one patient experienced a lead migration, one developed an infection of the pulse generator, and one patient suffered from a superficial cranial infection. CONCLUSION: Simultaneous bilateral MER-guided subthalamic DBS is a relatively safe and well-tolerated procedure. MER plays an important role in optimal localization of the DBS electrodes.

scholarly journals Bilateral Subthalamic Nucleus Deep Brain Stimulation in Elderly Patients With Parkinson Disease: A Case-Control Study

2020 ◽  
Vol 19 (3) ◽  
pp. 234-240
Author(s):  
Kyle T Mitchell ◽  
John R Younce ◽  
Scott A Norris ◽  
Samer D Tabbal ◽  
Joshua L Dowling ◽  
...  
Keyword(s):  
Deep Brain Stimulation ◽  
Parkinson Disease ◽  
Subthalamic Nucleus ◽  
Brain Stimulation ◽  
Rating Scale ◽  
Intracerebral Hemorrhages ◽  
Disease Rating ◽  
Equivalent Reduction ◽  
Stn Dbs ◽  
Deep Brain

Abstract BACKGROUND Subthalamic nucleus deep brain stimulation (STN DBS) is an effective adjunctive therapy for Parkinson disease. Studies have shown improvement of motor function but often exclude patients older than 75 yr. OBJECTIVE To determine the safety and effectiveness of STN DBS in patients 75 yr and older. METHODS A total of 104 patients (52 patients >75 yr old, 52 patients <75 yr old) with STN DBS were paired and retrospectively analyzed. The primary outcome was change in Unified Parkinson Disease Rating Scale (UPDRS) subscale III at 1 yr postoperatively, OFF medication. Secondary outcomes were changes in UPDRS I, II, and IV subscales and levodopa equivalents. Complications and all-cause mortality were assessed at 30 d and 1 yr. RESULTS Both cohorts had significant improvements in UPDRS III at 6 mo and 1 yr with no difference between cohorts. Change in UPDRS III was noninferior to the younger cohort. The cohorts had similar worsening in UPDRS I at 1 yr, no change in UPDRS II, similar improvement in UPDRS IV, and similar levodopa equivalent reduction. There were similar numbers of postoperative intracerebral hemorrhages (2/52 in each cohort, more severe in the older cohort) and surgical complications (4/52 in each cohort), and mortality in the older cohort was similar to an additional matched cohort not receiving DBS. CONCLUSION STN DBS provides substantial motor benefit and reduction in levodopa equivalents with a low rate of complications in older patients, which is also noninferior to the benefit in younger patients. STN DBS remains an effective therapy for those over 75 yr.

The effects of bilateral Subthalamic Nucleus Deep Brain Stimulation (STN DBS) on cognition in Parkinson disease

2008 ◽  
Vol 273 (1-2) ◽  
pp. 19-24 ◽  
Author(s):  
Jae-Hyeok Heo ◽  
Kyoung-Min Lee ◽  
Sun Ha Paek ◽  
Min-Jeong Kim ◽  
Jee-Young Lee ◽  
...  
Keyword(s):  
Deep Brain Stimulation ◽  
Parkinson Disease ◽  
Subthalamic Nucleus ◽  
Brain Stimulation ◽  
Stn Dbs ◽  
Deep Brain

Postmortem analysis following 71 months of deep brain stimulation of the subthalamic nucleus for Parkinson disease

2008 ◽  
Vol 109 (2) ◽  
pp. 325-329 ◽  
Author(s):  
David A. Sun ◽  
Hong Yu ◽  
John Spooner ◽  
Armanda D. Tatsas ◽  
Thomas Davis ◽  
...  
Keyword(s):  
Deep Brain Stimulation ◽  
Parkinson Disease ◽  
Subthalamic Nucleus ◽  
Brain Stimulation ◽  
Tissue Reaction ◽  
Tissue Response ◽  
Zona Incerta ◽  
Foreign Body Giant Cell ◽  
Stn Dbs ◽  
Deep Brain

Deep brain stimulation (DBS) of the subthalamic nucleus (STN) is a clinically effective neurosurgical treatment for Parkinson disease. Tissue reaction to chronic DBS therapy and the definitive location of active stimulation contacts are best studied on a postmortem basis in patients who have undergone DBS. The authors report the postmortem analysis of STN DBS following 5 years and 11 months of effective chronic stimulation including the histologically verified location of the active contacts associated with bilateral implants. They also describe tissue response to intraoperative test passes with recording microelectrodes and stimulating semimacroelectrodes. The results indicated that 1) the neural tissue surrounding active and nonactive contacts responds similarly, with a thin glial capsule and foreign-body giant cell reaction surrounding the leads as well as piloid gliosis, hemosiderin-laden macrophages, scattered lymphocytes, and Rosenthal fibers; 2) there was evidence of separate tracts in the adjacent tissue for intraoperative microelectrode and semimacroelectrode passes together with reactive gliosis, microcystic degeneration, and scattered hemosiderin deposition; and 3) the active contacts used for ~ 6 years of effective bilateral DBS therapy lie in the zona incerta, just dorsal to the rostral STN. To the authors' knowledge, the period of STN DBS therapy herein described for Parkinson disease and subjected to postmortem analysis is the longest to date.

scholarly journals Syncope Associated with Subthalamic Nucleus Deep Brain Stimulation in a Patient with Parkinson’s Disease

2013 ◽  
Vol 2013 ◽  
pp. 1-2
Author(s):  
Dursun Aygun ◽  
Ersoy Kocabicak ◽  
Onur Yildiz ◽  
Musa Kazim Onar ◽  
Hatice Guz ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Deep Brain Stimulation ◽  
Subthalamic Nucleus ◽  
Brain Stimulation ◽  
Early Period ◽  
Motor Symptoms ◽  
The Right ◽  
Stn Dbs ◽  
Deep Brain

In advanced Parkinson's disease (PD), deep brain stimulation (DBS) may be an alternative option for the treatment of motor symptoms. Side effects associated with subthalamic nucleus (STN) DBS in patients with PD are emerging as the most frequent sensory and motor symptoms. DBS-related syncope is reported as extremely rare. We wanted to discuss the mechanisms of syncope associated with STN DBS in a patient with Parkinson's disease.Case report.Sixty-three-year-old female patient is followed up with diagnosis of idiopathic Parkinson's disease for 6 years in our clinic. The patient has undergone STN DBS due to painful dystonia and drug resistant tremor. During the operation, when the left STN was stimulated at 5 milliampere (mAmp), the patient developed presyncopal symptoms. However, when the stimulation was stopped symptoms improved. During the early period after the operation, when the right STN was stimulated at 1.3 millivolts (mV), she developed the pre-yncopal symptoms and then syncope. Our case shows that STN DBS may lead to directly autonomic symptoms resulting in syncope during stimulation-on (stim-on).

Unilateral deep brain stimulation of the subthalamic nucleus for Parkinson disease

2007 ◽  
Vol 106 (4) ◽  
pp. 626-632 ◽  
Author(s):  
Jerzy L. Slowinski ◽  
John D. Putzke ◽  
Ryan J. Uitti ◽  
John A. Lucas ◽  
Margaret F. Turk ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Deep Brain Stimulation ◽  
Parkinson Disease ◽  
Subthalamic Nucleus ◽  
Brain Stimulation ◽  
Mental Flexibility ◽  
Stn Dbs ◽  
Updrs Part ◽  
Deep Brain

Object The object of this study was to assess the results of unilateral deep brain stimulation (DBS) of the subthalamic nucleus (STN) for management of advanced Parkinson disease (PD). Methods A clinical series of 24 patients (mean age 71 years, range 56–80 years) with medically intractable PD, who were undergoing unilateral magnetic resonance imaging–targeted, electrophysiologically guided STN DBS, completed a battery of qualitative and quantitative outcome measures preoperatively (baseline) and postoperatively, using a modified Core Assessment Program for Intracerebral Transplantations protocol. The mean follow-up period was 9 months. Statistically significant improvement was observed in the Unified Parkinson's Disease Rating Scale (UPDRS) Part II score (18%), the total UPDRS PART III score (31%), the contralateral UPDRS Part III score (63%), and scores for axial motor features (19%), contralateral tremor (88%), rigidity (60%), bradykinesia (54%), and dyskinesia (69%), as well as the Parkinson's Disease Quality of Life questionnaire score (15%) in the on-stimulation state compared with baseline. Ipsilateral symptoms improved by approximately 15% or less. Performance on the Purdue pegboard test improved in the contralateral hand in the on-stimulation state compared with the off-stimulation state (38%, p < 0.05). The daily levodopa-equivalent dose was reduced by 21% (p = 0.018). Neuropsychological tests revealed an improvement in mental flexibility and a trend toward reduced letter fluency. There were no permanent surgical complications. Of the 16 participants with symmetrical disease, five required implantation of the DBS unit on the second side. Conclusions Unilateral STN DBS is an effective and safe treatment for selected patients with advanced PD. Unilateral STN DBS provides improvement of contralateral motor symptoms of PD as well as quality of life, reduces requirements for medication, and possibly enhances mental flexibility. This method of surgical treatment may be associated with a reduced risk and may provide an alternative to bilateral STN DBS for PD, especially in older patients or patients with asymmetry of parkinsonism.

The Subthalamic Nucleus Influences Visuospatial Attention in Humans

2014 ◽  
Vol 26 (3) ◽  
pp. 543-550 ◽  
Author(s):  
Barbara Schmalbach ◽  
Veronika Günther ◽  
Jan Raethjen ◽  
Stefanie Wailke ◽  
Daniela Falk ◽  
...  
Keyword(s):  
Deep Brain Stimulation ◽  
Parkinson Disease ◽  
Spatial Attention ◽  
Subthalamic Nucleus ◽  
Brain Stimulation ◽  
Signs And Symptoms ◽  
Visuospatial Attention ◽  
The Right ◽  
Deep Brain ◽  
Stimulation Of

Spatial attention is a lateralized feature of the human brain. Whereas the role of cortical areas of the nondominant hemisphere on spatial attention has been investigated in detail, the impact of the BG, and more precisely the subthalamic nucleus, on signs and symptoms of spatial attention is not well understood. Here we used unilateral deep brain stimulation of the subthalamic nucleus to reversibly, specifically, and intraindividually modify the neuronal BG outflow and its consequences on signs and symptoms of visuospatial attention in patients suffering from Parkinson disease. We tested 13 patients with Parkinson disease and chronic deep brain stimulation in three stimulation settings: unilateral right and left deep brain stimulation of the subthalamic nucleus as well as bilateral deep brain stimulation of the subthalamic nucleus. In all three stimulation settings, the patients viewed a set of pictures while an eye-tracker system recorded eye movements. During the exploration of the visual stimuli, we analyzed the time spent in each visual hemispace, as well as the number, duration, amplitude, peak velocity, acceleration peak, and speed of saccades. In the unilateral left-sided stimulation setting, patients show a shorter ipsilateral exploration time of the extrapersonal space, whereas number, duration, and speed of saccades did not differ between the different stimulation settings. These results demonstrated reduced visuospatial attention toward the side contralateral to the right subthalamic nucleus that was not being stimulated in a unilateral left-sided stimulation. Turning on the right stimulator, the reduced visuospatial attention vanished. These results support the involvement of the subthalamic nucleus in modulating spatial attention. Therefore, the subthalamic nucleus is part of the subcortical network that subserves spatial attention.

scholarly journals Subthalamic Nucleus Deep Brain Stimulation: An Invaluable Role for MER

2013 ◽  
Vol 40 (4) ◽  
pp. 572-575 ◽  
Author(s):  
F. A. Zeiler ◽  
M. Wilkinson ◽  
J. P. Krcek
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Deep Brain Stimulation ◽  
Subthalamic Nucleus ◽  
Brain Stimulation ◽  
Localization And Mapping ◽  
Stereotactic Atlas ◽  
The Right ◽  
Stn Dbs ◽  
Deep Brain

Abstract:Introduction:Subthalamic nucleus (STN) deep brain stimulation (DBS) is currently the main surgical procedure for medically refractory Parkinson's disease. The benefit of intra-operative microelectrode recording (MER) for the purpose of neurophysiological localization and mapping of the STN continues to be debated.Methods:A retrospective review of the charts and operative reports of all patients receiving STN DBS implantation for Parkinson's disease at our institution from January 2004 to March 2011 was done.Results:Data from 43 of 44 patients with Parkinson's disease treated with STN DBS were reviewed. The average number of tracts on the left was 2.4, versus 2.3 on the right. The average dorsal and ventral anatomical boundaries of the STN based on Schaltenbrand's Stereotactic Atlas were estimated to be at -5.0 mm above and +1.4 mm below target respectively. The average dorsal and ventral boundaries of the STN using MER were -2.6 mm above and +2.0 mm below target respectively. The average dorsal-ventral distance of the STN as predicted by Stereotactic Atlas was 6.4 mm, compared to 4.6 mm as determined by MER. MER demonstrated the average dorsal and ventral boundaries on the left side were -2.6 mm and +2.2 mm from target respectively, while the average dorsal and ventral boundaries on the right side were -2.5 mm and +1.8 mm from target respectively with MER.Conclusions:MER in STN DBS surgery demonstrated measurable difference between stereotactic atlas/MRI STN target and neurophysiologic STN localization.

Rescue Ventral Intermediate Thalamus Deep Brain Stimulation to Address Refractory Tremor Following Subthalamic Nucleus Deep Brain Stimulation With Brittle Dyskinesia

2020 ◽  
pp. 115-118
Author(s):  
Mitra Afshari ◽  
Jill L. Ostrem ◽  
Marta San Luciano ◽  
Paul S. Larson
Keyword(s):  
Deep Brain Stimulation ◽  
Parkinson Disease ◽  
Essential Tremor ◽  
Subthalamic Nucleus ◽  
Brain Stimulation ◽  
Target Selection ◽  
Hand Tremor ◽  
Learning Points ◽  
Stn Dbs ◽  
Deep Brain

This chapter discusses a case in which a “rescue” deep brain stimulation (DBS) lead was implanted to address suboptimal tremor control. The patient was a 52-year-old woman with disabling bilateral postural and action hand tremor who also had mild parkinsonian signs. An essential tremor (ET)–Parkinson disease (PD) syndrome was suspected, and subthalamic nucleus (STN) DBS was pursued. Attempts at optimizing tremor control by reprogramming were limited by the induction of brittle dyskinesia even with small amounts of stimulation. Bilateral ventral intermediate thalamus DBS leads were then implanted, and the tremors improved significantly. Troubleshooting strategies for optimizing tremor control and reducing STN DBS–induced brittle dyskinesia are discussed. The chapter reviews important learning points on DBS target selection for ET, PD, and ET-PD spectrum syndromes.

Deactivation of One Subthalamic Nucleus Deep Brain Stimulation Device to Address Brittle Ipsilateral Dyskinesia in a Patient With Tremor-Dominant Parkinson Disease

2020 ◽  
pp. 93-96
Author(s):  
Julia Kroth ◽  
Susanne Schneider ◽  
Sergiu Groppa
Keyword(s):  
Deep Brain Stimulation ◽  
Parkinson Disease ◽  
Subthalamic Nucleus ◽  
Brain Stimulation ◽  
The Body ◽  
Resting Tremor ◽  
Test Stimulation ◽  
History Of ◽  
The Right ◽  
Deep Brain

A 78-year-old right-handed woman with a 10-year history of tremor-dominant Parkinson disease (PD) was recommended for bilateral deep brain stimulation (DBS) in the subthalamic nucleus (STN). The patient was implanted with bilateral omnidirectional STN DBS electrodes after intraoperative microelectrode recordings and intraoperative test stimulation. Immediately after implantation, the motor symptoms improved considerably, but 3 to 4 weeks later, a debilitating left-sided resting tremor re-emerged. Personalized programming at the right STN ameliorated the tremor, while painful dyskinesia and hemiballism of the ipsilateral right side of the body developed subsequently over the next few days. Adapting the stimulation parameters and the dopaminergic medication improved these symptoms only marginally. After turning off the left STN electrode, the dyskinesia and hemiballism disappeared completely. In the following weeks, the amperage of the right STN electrode was increased gradually to control the left-sided resting tremor. This was possible without the development of ipsilateral hyperkinesia. During the off phases of stimulation, a considerable direct improvement of hyperkinesia was noted, and the decision to turn off the left STN electrode was ultimately made.

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