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Bullard AJ, Hutchison BC, Lee J, Chestek CA, Patil PG. Estimating Risk for Future Intracranial, Fully Implanted, Modular Neuroprosthetic Systems: A Systematic Review of Hardware Complications in Clinical Deep Brain Stimulation and Experimental Human Intracortical Arrays. Neuromodulation 2019; 23:411-426. [DOI: 10.1111/ner.13069] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Revised: 08/05/2019] [Accepted: 09/10/2019] [Indexed: 01/08/2023]
Affiliation(s)
- Autumn J. Bullard
- Department of Biomedical Engineering University of Michigan Ann Arbor MI USA
| | | | - Jiseon Lee
- Department of Biomedical Engineering University of Michigan Ann Arbor MI USA
| | - Cynthia A. Chestek
- Department of Biomedical Engineering University of Michigan Ann Arbor MI USA
- Department of Electrical Engineering and Computer Science University of Michigan Ann Arbor MI USA
| | - Parag G. Patil
- Department of Biomedical Engineering University of Michigan Ann Arbor MI USA
- Department of Neurosurgery University of Michigan Medical School Ann Arbor MI USA
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Foreword of Volume 1. Neuromodulation 2018. [DOI: 10.1016/b978-0-12-805353-9.06001-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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3
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Foreword of Volume 3. Neuromodulation 2018. [DOI: 10.1016/b978-0-12-805353-9.06003-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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4
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Krames ES, Hunter Peckham P, Rezai AR. Foreword of Volume 2. Neuromodulation 2018. [DOI: 10.1016/b978-0-12-805353-9.06002-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Wagle Shukla A, Okun MS. Surgical treatment of Parkinson's disease: patients, targets, devices, and approaches. Neurotherapeutics 2014; 11:47-59. [PMID: 24198187 PMCID: PMC3899492 DOI: 10.1007/s13311-013-0235-0] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Surgical treatment for Parkinson's disease (PD) has evolved from ablative procedures, within a variety of brain regions, to implantation of electrodes into specific targets of the basal ganglia. Electrode implantation surgery, referred to as deep brain stimulation (DBS), is preferred to ablative procedures by many experts owing to its reversibility, programmability, and the ability to be safely performed bilaterally. Several randomized clinical studies have demonstrated the effectiveness of DBS surgery for control of PD symptoms. Many brain targets, including the subthalamic nucleus and the globus pallidus internus, have emerged as potentially effective, with each target being closely associated with important pros and cons. Selection of appropriate PD candidates through a methodical interdisciplinary screening is considered a prerequisite for a successful surgical outcome. Despite recent growth in DBS knowledge, there is currently no consensus on the ideal surgical technique, the best surgical approach, and the most appropriate surgical target. DBS is now targeted towards treating specific PD-related symptoms in a given individual, and not simply addressing the disease with one pre-defined approach. In this review we will discuss the historical aspects of surgical treatments, the selection of an appropriate DBS candidate, the current surgical techniques, and recently introduced DBS-related technologies. We will address important pre- and postoperative issues related to DBS. We will also discuss the lessons learned from the randomized clinical studies for DBS and the shifting paradigm to tailor to a more patient-centered and symptom-specific approach.
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Affiliation(s)
- Aparna Wagle Shukla
- Center for Movement Disorders and Neurorestoration, Department of Neurology, University of Florida, 3450 Hull Road, Gainesville, FL, 32607, USA,
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Jonker PKC, van Dijk JMC, van Hulzen ALJ, van Laar T, Staal MJ, Journée HL. The added value of semimicroelectrode recording in deep brain stimulation of the subthalamic nucleus for Parkinson disease. Neurosurg Focus 2013; 35:E3. [DOI: 10.3171/2013.8.focus13289] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Object
Accurate placement of the leads is crucial in deep brain stimulation (DBS). To optimize the surgical positioning of the lead, a combination of anatomical targeting on MRI, electrophysiological mapping, and clinical testing is applied during the procedure. Electrophysiological mapping is usually done with microelectrode recording (MER), but the relatively undocumented semimicroelectrode recording (SMER) is a competing alternative. In this study the added value and safety of SMER for optimal lead insertion in the subthalamic nucleus (STN) in a consecutive cohort of patients with Parkinson disease (PD) was assessed.
Methods
Between 2001 and 2010, a consecutive single-center cohort of 46 patients with PD underwent DBS of the STN (85 lead insertions). After exclusion of 11 lead insertions for mostly technical reasons, 74 insertions were included for the assessment. Anatomical target localization was based on either 1.5-T MRI or fused 3-T MRI with CT, with reference to anterior commissure–posterior commissure coordinates. Electrophysiological mapping was performed with SMER. Intraoperative clinical testing was dominant in determining the final lead position. The target error was defined as the absolute distance between the anatomical or electrophysiological target and the final lead position. The effect of SMER on anatomical target error reduction and final target selection was analyzed. Also, the anatomical and electrophysiological target error was judged against the different imaging strategies. For safety evaluation, the adverse events related to all lead insertions were assessed.
Results
The use of SMER significantly reduced the anatomical target error from 1.7 (SD 1.6) mm to 0.8 (SD 1.3) mm (p < 0.0001). In particular, the anatomical target error based on 1.5-T MRI was significantly reduced by SMER, from 2.3 (SD 1.5) mm to 0.1 (SD 0.5) mm (p < 0.001). Anatomical target error reduction based on 3-T MRI fused with CT was not significantly influenced by SMER (p = 0.2), because the 3-T MRI-CT combination already significantly reduced the anatomical target error from 2.3 (SD 1.5) mm to 1.5 (SD 1.5) mm compared with 1.5-T MRI (p = 0.03). No symptomatic intracerebral hemorrhage was reported. Intracerebral infection was encountered in 1 patient following lead insertion.
Conclusions
Semimicroelectrode recording has added value in targeting the STN in DBS for patients with PD based on 1.5-T MRI. The use of SMER does not significantly reduce the anatomical target error in procedures with fused 3-T MRI-CT studies and therefore might be omitted. With the absence of hemorrhagic complications, SMER-guided lead implantation should be considered a safe alternative to MER.
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Affiliation(s)
| | | | | | - Teus van Laar
- 3Neurology, University of Groningen, University Medical Center Groningen, The Netherlands
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7
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Vergani F, Landi A, Pirillo D, Cilia R, Antonini A, Sganzerla EP. Surgical, Medical, and Hardware Adverse Events in a Series of 141 Patients Undergoing Subthalamic Deep Brain Stimulation for Parkinson Disease. World Neurosurg 2010; 73:338-44. [DOI: 10.1016/j.wneu.2010.01.017] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2009] [Accepted: 01/14/2010] [Indexed: 11/24/2022]
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8
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Dormont D, Seidenwurm D, Galanaud D, Cornu P, Yelnik J, Bardinet E. Neuroimaging and deep brain stimulation. AJNR Am J Neuroradiol 2009; 31:15-23. [PMID: 19749225 DOI: 10.3174/ajnr.a1644] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Deep brain stimulation (DBS) is a new neurosurgical method principally used for the treatment of Parkinson disease (PD). Many new applications of DBS are under development, including the treatment of intractable psychiatric diseases. Brain imaging is used for the selection of patients for DBS, to localize the target nucleus, to detect complications, and to evaluate the final electrode contact position. In patients with implanted DBS systems, there is a risk of electrode heating when MR imaging is performed. This contraindicates MR imaging unless specific precautions are taken. Involvement of neuroradiologists in DBS procedures is essential to optimize presurgical evaluation, targeting, and postoperative anatomic results. The precision of the neuroradiologic correlation with anatomic data and clinical outcomes in DBS promises to yield significant basic science and clinical advances in the future.
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Affiliation(s)
- D Dormont
- Cogimage, Université Pierre et Marie Curie Paris VI, CRICM, CNRS, UMR 7225, Groupe Hospitalier Pitié-Salpêtrière AP-HP, Paris, France.
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Diamond A, Shahed J, Jankovic J. The effects of subthalamic nucleus deep brain stimulation on parkinsonian tremor. J Neurol Sci 2007; 260:199-203. [PMID: 17561121 DOI: 10.1016/j.jns.2007.05.002] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2006] [Revised: 05/02/2007] [Accepted: 05/07/2007] [Indexed: 12/01/2022]
Abstract
Deep brain stimulation (DBS) of the ventral intermediate (Vim) nucleus of the thalamus has been the target of choice for patients with disabling essential tremor or medication refractory parkinsonian tremor. Recently there is evidence that the subthalamic nucleus (STN) should be the targets for patients with tremor associated with Parkinson's disease (PD). To assess the effects of STN DBS on parkinsonian tremor, eight consecutive patients with PD and disabling tremor were videotaped using a standardized tremor protocol. Evaluations were performed at least 12 h after last dose of medication with the DBS turned off followed by optimal DBS on state. A rater blinded to DBS status evaluated randomized video segments with the tremor components of the Unified Parkinson Disease Rating Scale (UPDRS) and Tremor Rating Scale (TRS). Compared with DBS off state there were significant improvements in mean UPDRS tremor score 79.4% (p=0.008), total TRS score 69.9% (p=0.008) and upper extremity 92.5% (p=0.008) TRS subscore. Functional improvement was noted with pouring liquids. Our findings provide support that STN DBS is an effective treatment of tremor associated with PD.
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Affiliation(s)
- Alan Diamond
- Department of Neurology, Baylor College of Medicine, United States.
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10
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Vergani F, Landi A, Antonini A, Parolin M, Cilia R, Grimaldi M, Ferrarese C, Gaini SM, Sganzerla EP. Anatomical identification of active contacts in subthalamic deep brain stimulation. ACTA ACUST UNITED AC 2007; 67:140-6; discussion 146-7. [PMID: 17254868 DOI: 10.1016/j.surneu.2006.06.054] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2006] [Accepted: 06/26/2006] [Indexed: 11/18/2022]
Abstract
BACKGROUND Subthalamic Deep Brain Stimulation is a valid surgical procedure for the treatment of idiopathic PD, although its precise mechanism of action is still unclear; moreover, there are no conclusive data about the functional anatomy of the human subthalamic region. Identifying the location of active contacts for StnDBS can yield interesting insights on the mechanisms of action of DBS and the different role played by the anatomical structures of the subthalamic region. METHODS Twenty-five patients operated on for bilateral StnDBS were considered. During the surgical procedure, a complete intraoperative neurophysiological study was obtained by means of semimicrorecordings and stimulations. After surgery, an MRI study confirmed the position of the electrodes; MR images were subsequently superimposed onto a stereotactic atlas by using a dedicated workstation. The coordinates relative to the tip of the electrodes and active contacts were then calculated. RESULTS Most of the electrode tips are located inside the subthalamus or immediately ventrally to it. Of the active contacts used for chronic stimulation, 96.5% are located in a well-defined anatomical region, which includes subthalamus, zona incerta, and FF. CONCLUSIONS Our findings seem to suggest that other structures beyond the subthalamus itself play a clinical role in symptoms control after DBS for PD.
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Affiliation(s)
- Francesco Vergani
- Department of Neurosciences and Medical Biotechnologies, University of Milano-Bicocca, 20052 Monza, Italy.
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Lyoo CH, Aalto S, Rinne JO, Lee KO, Oh SH, Chang JW, Lee MS. Different cerebral cortical areas influence the effect of subthalamic nucleus stimulation on parkinsonian motor deficits and freezing of gait. Mov Disord 2007; 22:2176-82. [PMID: 17712844 DOI: 10.1002/mds.21609] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Inconsistent response in freezing of gait (FOG) with levodopa treatment or STN DBS makes the pathogenesis difficult to understand. We studied brain areas associated with the expression of STN DBS effect on parkinsonian motor deficits and FOG. Ten Parkinson's disease patients with typical FOG were included. One month before STN DBS, we performed [(18)F]-deoxyglucose PET scans and measured the UPDRS motor and modified FOG (mFOG) scores during levodopa off and on periods. At two months after STN DBS, same rating scores were measured. The percentage improvement of mFOG and UPDRS motor scores by STN DBS during levodopa off period was calculated. We searched for brain areas in which glucose metabolism correlated with the improvement of mFOG and UPDRS motor scores by DBS. During levodopa off period, STN DBS improved the UPDRS motor scores by 32.3% and the mFOG scores by 56.6%. There was no correlation between the improvements of both scores. The improvement of UPDRS motor score by DBS correlated with the metabolic activities of rostral supplementary motor area (Brodmann's area 8; BA8), anterior cingulate cortex (BA32), and prefrontal cortex (BA9). On the other hand, there was a positive correlation between the improvement of mFOG score by DBS and the metabolic activity of the parietal, occipital, and temporal sensory association cortices. In conclusion, dysfunction of different cerebral cortical areas limits the beneficial effects of DBS on parkinsonian motor deficits and FOG.
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Affiliation(s)
- Chul Hyoung Lyoo
- Department of Neurology, Youngdong Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea
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12
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Vergani F, Landi A, Antonini A, Sganzerla EP. BILATERAL SUBTHALAMIC DEEP BRAIN STIMULATION IN A PATIENT WITH PARKINSON'S DISEASE WHO HAD PREVIOUSLY UNDERGONE THALAMOTOMY AND AUTOLOGOUS ADRENAL GRAFTING IN THE CAUDATE NUCLEUS. Neurosurgery 2006; 59:E1140; discussion E1140. [PMID: 17143205 DOI: 10.1227/01.neu.0000245585.93284.15] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Abstract
OBJECTIVE
Subthalamic (Stn) deep brain stimulation (DBS) is a valid surgical therapy for the treatment of severe Parkinson's disease. In recent years, StnDBS has been proposed for patients who previously received other surgical treatments, such as thalamotomy and pallidotomy. Nonetheless, there is no consensus about the indications of DBS in patients who previously underwent surgery. To the best of our knowledge this is the first reported case of a patient treated with DBS after previous thalamotomy and adrenal grafting.
CLINICAL PRESENTATION
A 62-year-old man with a long history (more than 30 yr) of Parkinson's disease received unilateral thalamotomy and autologous adrenal graft on two independent occasions. Thalamotomy led to a significant improvement, although limited to the control of contralateral tremor. The autologous adrenal graft was of no benefit. For the subsequent occurrence of L-dopa related dyskinesias and severe “off” periods, the patient was referred to our center for StnDBS.
INTERVENTION
The patient underwent bilateral StnDBS, obtaining a satisfactory improvement of rigidity and bradykinesia on both sides. The 1-year follow-up evaluation showed a 46% improvement in the Unified Parkinson's Disease Rating Scale motor section, along with a noticeable reduction in antiparkinsonian therapy (81%).
CONCLUSION
This case is consistent with previous reports from the literature, suggesting that StnDBS is feasible and safe, even in patients who previously received other surgical treatments for Parkinson's disease, such as thalamotomy or cell grafting.
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Affiliation(s)
- Francesco Vergani
- Department of Neurosciences and Biomedical Technology, University of Milano-Bicocca, Milan, Italy
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Voon V, Kubu C, Krack P, Houeto JL, Tröster AI. Deep brain stimulation: neuropsychological and neuropsychiatric issues. Mov Disord 2006; 21 Suppl 14:S305-27. [PMID: 16810676 DOI: 10.1002/mds.20963] [Citation(s) in RCA: 229] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Parkinson's disease (PD) is a neurodegenerative disorder characterized by motor, cognitive, neuropsychiatric, autonomic, and other nonmotor symptoms. The efficacy of deep brain stimulation (DBS) for the motor symptoms of advanced PD is well established. However, the effects of DBS on the cognitive and neuropsychiatric symptoms are less clear. The neuropsychiatric aspects of DBS for PD have recently been of considerable clinical and pathophysiological interest. As a companion to the preoperative and postoperative sections of the DBS consensus articles, this article reviews the published literature on the cognitive and neuropsychiatric aspects of DBS for PD. The majority of the observed neuropsychiatric symptoms are transient, treatable, and potentially preventable. Outcome studies, methodological issues, pathophysiology, and preoperative and postoperative management of the cognitive and neuropsychiatric aspects and complications of DBS for PD are discussed.
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Affiliation(s)
- Valerie Voon
- Department of Psychiatry, Toronto Western Hospital, Toronto, Canada.
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De Gaspari D, Siri C, Di Gioia M, Antonini A, Isella V, Pizzolato A, Landi A, Vergani F, Gaini SM, Appollonio IM, Pezzoli G. Clinical correlates and cognitive underpinnings of verbal fluency impairment after chronic subthalamic stimulation in Parkinson's disease. Parkinsonism Relat Disord 2006; 12:289-95. [PMID: 16554183 DOI: 10.1016/j.parkreldis.2006.01.001] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2005] [Revised: 12/16/2005] [Accepted: 01/04/2006] [Indexed: 11/18/2022]
Abstract
A decline in verbal fluency is the most consistent neuropsychological sequela of deep brain stimulation (DBS) for Parkinson's disease. We assessed clinical correlates and switching and clustering subcomponents in 26 parkinsonians undergoing subthalamic DBS. Post-surgical motor improvement was accompanied by worsening at both letter and category fluency tasks. Total number of words and switches decreased, while average cluster size was unchanged. Worsening tended to be prominent in patients with baseline poorer cognitive status and more depressed mood. Impairment of shifting suggests prefrontal dysfunction, possibly due to disruption of fronto-striatal circuits along the surgical trajectory and/or to high frequency stimulation itself.
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Affiliation(s)
- D De Gaspari
- Department of Neuroscience, Center for Parkinson's Disease, Istituti Clinici di Perfezionamento, Milan, Italy
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Lang AE, Houeto JL, Krack P, Kubu C, Lyons KE, Moro E, Ondo W, Pahwa R, Poewe W, Tröster AI, Uitti R, Voon V. Deep brain stimulation: Preoperative issues. Mov Disord 2006; 21 Suppl 14:S171-96. [PMID: 16810718 DOI: 10.1002/mds.20955] [Citation(s) in RCA: 189] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Numerous factors need to be taken into account in deciding whether a patient with Parkinson's disease (PD) is a candidate for deep brain stimulation. Patient-related personal factors including age and the presence of other comorbid disorders need to be considered. Neuropsychological and neuropsychiatric concerns relate both to the presurgical status of the patient and to the potential for surgery to result in new problems postoperatively. A number of factors related to the underlying PD need to be considered, including the specific parkinsonian motor indications (e.g., tremor, bradykinesia, gait dysfunction), previous medical therapies, including benefit from current therapy and adverse effects, and past surgical treatments. Definable causes of Parkinsonism, particularly atypical Parkinsonisms, should be considered. Finally, methods of evaluating outcomes should be defined and formalized. This is a report from the Consensus on Deep Brain Stimulation for Parkinson's Disease, a project commissioned by the Congress of Neurological Surgeons and the Movement Disorder Society (MDS). The report has been endorsed by the Scientific Issues Committee of the MDS and the American Society of Stereotactic and Functional Neurosurgery. It outlines answers to a series of questions developed to address all aspects of deep brain stimulation preoperative decision-making.
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Affiliation(s)
- Anthony E Lang
- Department of Neurology, Toronto Western Hospital, Toronto, Ontario, Canada.
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Deuschl G, Herzog J, Kleiner-Fisman G, Kubu C, Lozano AM, Lyons KE, Rodriguez-Oroz MC, Tamma F, Tröster AI, Vitek JL, Volkmann J, Voon V. Deep brain stimulation: Postoperative issues. Mov Disord 2006; 21 Suppl 14:S219-37. [PMID: 16810719 DOI: 10.1002/mds.20957] [Citation(s) in RCA: 199] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Numerous factors need to be taken into account when managing a patient with Parkinson's disease (PD) after deep brain stimulation (DBS). Questions such as when to begin programming, how to conduct a programming screen, how to assess the effects of programming, and how to titrate stimulation and medication for each of the targeted sites need to be addressed. Follow-up care should be determined, including patient adjustments of stimulation, timing of follow-up visits and telephone contact with the patient, and stimulation and medication conditions during the follow-up assessments. A management plan for problems that can arise after DBS such as weight gain, dyskinesia, axial symptoms, speech dysfunction, muscle contractions, paresthesia, eyelid, ocular and visual disturbances, and behavioral and cognitive problems should be developed. Long-term complications such as infection or erosion, loss of effect, intermittent stimulation, tolerance, and pain or discomfort can develop and need to be managed. Other factors that need consideration are social and job-related factors, development of dementia, general medical issues, and lifestyle changes. This report from the Consensus on Deep Brain Stimulation for Parkinson's Disease, a project commissioned by the Congress of Neurological Surgeons and the Movement Disorder Society, outlines answers to a series of questions developed to address all aspects of DBS postoperative management and decision-making with a systematic overview of the literature (until mid-2004) and by the expert opinion of the authors. The report has been endorsed by the Scientific Issues Committee of the Movement Disorder Society and the American Society of Stereotactic and Functional Neurosurgery.
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Affiliation(s)
- Günther Deuschl
- Department of Neurology, Christian-Albrechts-Universität Kiel, Kiel, Germany.
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Goodman RR, Kim B, McClelland S, Senatus PB, Winfield LM, Pullman SL, Yu Q, Ford B, McKhann GM. Operative techniques and morbidity with subthalamic nucleus deep brain stimulation in 100 consecutive patients with advanced Parkinson's disease. J Neurol Neurosurg Psychiatry 2006; 77:12-7. [PMID: 16361585 PMCID: PMC2117411 DOI: 10.1136/jnnp.2005.069161] [Citation(s) in RCA: 92] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
OBJECTIVE Subthalamic nucleus (STN) stimulation for patients with medically refractory Parkinson disease (PD) is expanding. Reported experience has provided some indication of techniques, efficacy, and morbidity, but few centres have reported more than 50 patients. To expand this knowledge, we reviewed our experience with a large series of consecutive patients. METHODS From March 1999 to September 2003, 191 subthalamic stimulator devices (19 unilateral) were implanted in 100 patients with PD at New York Presbyterian Hospital/Columbia University Medical Center. Sixteen patients had undergone a prior surgery for PD (pallidotomy, thalamotomy, or fetal transplant). Microelectrode guided implantations were performed using techniques similar to those described previously. Electrode implantation occurred 1-2 weeks before outpatient pulse generator implantation. RESULTS Reductions of dyskinesias and off severity/duration were similar to prior published reports. Morbidity included: 7 device infections (3.7%), 1 cerebral infarct, 1 intracerebral haematoma, 1 subdural haematoma, 1 air embolism, 2 wound haematomas requiring drainage (1.0%), 2 skin erosions over implanted hardware (1.0%), 3 periprocedural seizures (1.6%), 6 brain electrode revisions (3.1%), postoperative confusion in 13 patients (6.8%), and 16 battery failures (8.4%). Of the 100 patients, there were no surgical deaths or permanent new neurological deficits. The average hospital stay for all 100 patients was 3.1 days. CONCLUSION Subthalamic stimulator implantation in a large consecutive series of patients with PD produced significant clinical improvement without mortality or major neurological morbidity. Morbidity primarily involved device infections and hardware/wound revisions.
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Affiliation(s)
- R R Goodman
- Departments of Neurological Surgery and Neurology, Columbia College of Physicians and Surgeons, New York, NY, USA.
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Hamani C, Richter E, Schwalb JM, Lozano AM. Bilateral Subthalamic Nucleus Stimulation for Parkinson's Disease: A Systematic Review of the Clinical Literature. Neurosurgery 2005; 56:1313-21; discussion 1321-4. [PMID: 15918948 DOI: 10.1227/01.neu.0000159714.28232.c4] [Citation(s) in RCA: 154] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2004] [Accepted: 01/13/2005] [Indexed: 11/19/2022] Open
Abstract
Abstract
OBJECTIVE:
To evaluate the benefits and adverse effects of bilateral subthalamic nucleus stimulation in the treatment of Parkinson's disease (PD) by systematically reviewing the published literature.
METHODS:
A search of the PubMed database using the key words subthalamic, nucleus, and stimulation yielded 624 articles published between 1966 and December 2003. Only articles that included original, nonduplicated descriptions of patients with PD treated with bilateral subthalamic nucleus stimulation were selected for further analysis.
RESULTS:
A total of 38 studies from 34 neurosurgical centers in 13 countries were identified for critical review. The outcomes for 471 patients with PD treated with bilateral subthalamic nucleus stimulation were assessed according to the Unified Parkinson's Disease Rating Scale in both on-medication and off-medication conditions. With stimulation, Unified Parkinson's Disease Rating Scale motor scores in the off-medication condition improved by 50% after 6 months, 56% after 12 months, 51% after 2 years, and 49% after 5 years compared with preoperative off-medication scores. At 12 months of subthalamic nucleus stimulation, the mean improvement in tremor was 81%, in rigidity was 63%, in bradykinesia was 52%, in gait was 64%, and in postural instability was 69% when compared with preoperative off-medication subscores. On-medication dyskinesias were reduced by 94%, as assessed 12 months after stimulation using the Unified Parkinson's Disease Rating Scale IV complications of therapy score. There was an overall 52% reduction in the l-dopa-equivalent dose intake after 12 months of stimulation. Most adverse effects were mild to moderate. There was a 1 to 2% incidence of severe adverse effects (death or permanent neurological deficits related to intracerebral hemorrhages). Nineteen percent of the patients had adverse effects related to stimulation that could be reversed by changing stimulation parameters. There was a 9% incidence of adverse effects related to the hardware (infections, lead and pulse generator problems).
CONCLUSION:
Bilateral subthalamic nucleus stimulation is effective in the treatment of PD. Further refinements in patient selection and surgical technique may lessen the incidence of complications associated with this procedure.
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Affiliation(s)
- Clement Hamani
- Division of Neurosurgery, University of Toronto, Toronto Western Hospital, Toronto, Ontario, Canada
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