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Saravanan CR, Eisa RFH, Gaviria E, Algubari A, Chandrasekar KK, Inban P, Prajjwal P, Bamba H, Singh G, Marsool MDM, Gadam S. The efficacy and safety of gene therapy approaches in Parkinson's disease: A systematic review. Dis Mon 2024; 70:101754. [PMID: 38849290 DOI: 10.1016/j.disamonth.2024.101754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2024]
Abstract
BACKGROUND Parkinson's disease (PD) is a neurodegenerative disorder characterized by the progressive loss of dopaminergic neurons in the brain. Despite existing treatments, there remains an unmet need for therapies that can halt or reverse disease progression. Gene therapy has been tried and tested for a variety of illnesses, including PD. The goal of this systematic review is to assess gene therapy techniques' safety and effectiveness in PD clinical trials. METHODS Online databases PubMed/Medline, and Cochrane were used to screen the studies for this systematic review. The risk of bias of the included studies was assessed using standard tools. RESULTS Gene therapy can repair damaged dopaminergic neurons from the illness or deal with circuit anomalies in the basal ganglia connected to Parkinson's disease symptoms. Rather than only treating symptoms, this neuroprotective approach alters the illness itself. Medication for gene therapy is currently administered at the patient's bedside. It can hyperactivate specific brain circuits associated with motor dysfunction. PD therapies are developing quickly, and there aren't enough head-to-head trials evaluating the safety and effectiveness of available treatments. When choosing an advanced therapy, patient-specific factors should be considered in addition to the effectiveness and safety of each treatment option. CONCLUSION In comparison to conventional therapies, gene therapy may be advantageous for PD. It may minimize side effects, relieve symptoms, and offer dependable dopamine replacement.
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Affiliation(s)
| | | | | | | | | | - Pugazhendi Inban
- Internal Medicine, St. Mary's General Hospital and Saint Clare's Health, NY, USA
| | | | - Hyma Bamba
- MBBS, Internal Medicine, Government Medical College and Hospital, Chandigarh, India
| | - Gurmehar Singh
- MBBS, Internal Medicine, Government Medical College and Hospital, Chandigarh, India
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Manes JL, Bullock L, Meier AM, Turner RS, Richardson RM, Guenther FH. A neurocomputational view of the effects of Parkinson's disease on speech production. Front Hum Neurosci 2024; 18:1383714. [PMID: 38812472 PMCID: PMC11133703 DOI: 10.3389/fnhum.2024.1383714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Accepted: 04/23/2024] [Indexed: 05/31/2024] Open
Abstract
The purpose of this article is to review the scientific literature concerning speech in Parkinson's disease (PD) with reference to the DIVA/GODIVA neurocomputational modeling framework. Within this theoretical view, the basal ganglia (BG) contribute to several different aspects of speech motor learning and execution. First, the BG are posited to play a role in the initiation and scaling of speech movements. Within the DIVA/GODIVA framework, initiation and scaling are carried out by initiation map nodes in the supplementary motor area acting in concert with the BG. Reduced support of the initiation map from the BG in PD would result in reduced movement intensity as well as susceptibility to early termination of movement. A second proposed role concerns the learning of common speech sequences, such as phoneme sequences comprising words; this view receives support from the animal literature as well as studies identifying speech sequence learning deficits in PD. Third, the BG may play a role in the temporary buffering and sequencing of longer speech utterances such as phrases during conversational speech. Although the literature does not support a critical role for the BG in representing sequence order (since incorrectly ordered speech is not characteristic of PD), the BG are posited to contribute to the scaling of individual movements in the sequence, including increasing movement intensity for emphatic stress on key words. Therapeutic interventions for PD have inconsistent effects on speech. In contrast to dopaminergic treatments, which typically either leave speech unchanged or lead to minor improvements, deep brain stimulation (DBS) can degrade speech in some cases and improve it in others. However, cases of degradation may be due to unintended stimulation of efferent motor projections to the speech articulators. Findings of spared speech after bilateral pallidotomy appear to indicate that any role played by the BG in adult speech must be supplementary rather than mandatory, with the sequential order of well-learned sequences apparently represented elsewhere (e.g., in cortico-cortical projections).
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Affiliation(s)
- Jordan L. Manes
- Department of Speech, Language, and Hearing Sciences, Boston University, Boston, MA, United States
- Department of Communicative Disorders and Sciences, University at Buffalo, Buffalo, NY, United States
| | - Latané Bullock
- Program in Speech and Hearing Bioscience and Technology, Division of Medical Sciences, Harvard Medical School, Boston, MA, United States
- Department of Neurosurgery, Massachusetts General Hospital, Boston, MA, United States
- Harvard Medical School, Boston, MA, United States
| | - Andrew M. Meier
- Department of Speech, Language, and Hearing Sciences, Boston University, Boston, MA, United States
| | - Robert S. Turner
- Department of Neurobiology, University of Pittsburgh, Pittsburgh, PA, United States
- Aligning Science Across Parkinson’s (ASAP) Collaborative Research Network, Chevy Chase, MD, United States
| | - R. Mark Richardson
- Department of Neurosurgery, Massachusetts General Hospital, Boston, MA, United States
- Harvard Medical School, Boston, MA, United States
| | - Frank H. Guenther
- Department of Speech, Language, and Hearing Sciences, Boston University, Boston, MA, United States
- Department of Biomedical Engineering, Boston University, Boston, MA, United States
- Picower Institute for Learning and Memory, Massachusetts Institute of Technology, Cambridge, MA, United States
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Kesarwani R, Mahajan UV, Wang AS, Kilbane C, Shaikh AG, Miller JP, Sweet JA. Improved Side-Effect Stimulation Thresholds and Postoperative Transient Confusion With Asleep, Image-Guided Deep Brain Stimulation. Oper Neurosurg (Hagerstown) 2024:01787389-990000000-01042. [PMID: 38305427 DOI: 10.1227/ons.0000000000001076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 12/01/2023] [Indexed: 02/03/2024] Open
Abstract
BACKGROUND AND OBJECTIVES Asleep, image-guided deep brain stimulation (DBS) is a modern alternative to awake, microelectrode recording (MER) guidance. Studies demonstrate comparable efficacy and complications between techniques, although some report lower stimulation thresholds for side effects with image guidance. In addition, few studies directly compare the risk of postoperative transient confusion (pTC) across techniques. The purpose of this study was to compare clinical efficacy, stimulation thresholds for side effects, and rates of pTC with MER-guided DBS vs intraoperative 3D-fluoroscopy (i3D-F) guidance in Parkinson's disease and essential tremor. METHODS Consecutive patients from 2006 to 2021 were identified from the departmental database and grouped as having either MER-guided DBS or i3D-F-guided DBS insertion. Directional leads were used once commercially available. Changes in Unified Parkinson's Disease Rating Scale (UPDRS)-III scores, levodopa equivalent daily dose, Fahn-Tolosa-Marin scores, and stimulation thresholds were assessed, as were rates of complications including pTC. RESULTS MER guidance was used to implant 487 electrodes (18 globus pallidus interna, GPi; 171 subthalamic nucleus; 76 ventrointermediate thalamus, VIM) in 265 patients. i3D-F guidance was used in 167 electrodes (19 GPi; 25 subthalamic nucleus; 41 VIM) in 85 patients. There were no significant differences in Unified Parkinson's Disease Rating III Scale, levodopa equivalent daily dose, or Fahn-Tolosa-Marin between groups. Stimulation thresholds for side effects were higher with i3D-F guidance in the subthalamic nucleus (MER, 2.80 mA ± 0.98; i3D-F, 3.46 mA ± 0.92; P = .002) and VIM (MER, 2.81 mA ± 1.00; i3D-F, 3.19 mA ± 1.03; P = .0018). Less pTC with i3D-F guidance (MER, 7.5%; i3D-F, 1.2%; P = .034) was also found. CONCLUSION Although clinical efficacy between MER-guided and i3D-F-guided DBS was comparable, thresholds for stimulation side effects were higher with i3D-F guidance and the rate of pTC was lower. This suggests that image-guided DBS may affect long-term side effects and pose a decreased risk of pTC.
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Affiliation(s)
- Rohit Kesarwani
- Case Western Reserve University School of Medicine, Cleveland, Ohio, USA
- Department of Neurological Surgery, University Hospitals Cleveland Medical Center, Cleveland, Ohio, USA
- Current Affiliation: Meritas Health Neurosurgery, North Kansas City Hospital, North Kansas City, Missouri, USA
| | - Uma V Mahajan
- Case Western Reserve University School of Medicine, Cleveland, Ohio, USA
| | - Alexander S Wang
- Case Western Reserve University School of Medicine, Cleveland, Ohio, USA
- Department of Neurology, University Hospitals Cleveland Medical Center, Cleveland, Ohio, USA
| | - Camilla Kilbane
- Case Western Reserve University School of Medicine, Cleveland, Ohio, USA
- Department of Neurology, University Hospitals Cleveland Medical Center, Cleveland, Ohio, USA
| | - Aasef G Shaikh
- Case Western Reserve University School of Medicine, Cleveland, Ohio, USA
- Department of Neurology, University Hospitals Cleveland Medical Center, Cleveland, Ohio, USA
- United States Department of Veterans Affairs, Washington, District of Columbia, USA
| | - Jonathan P Miller
- Case Western Reserve University School of Medicine, Cleveland, Ohio, USA
- Department of Neurological Surgery, University Hospitals Cleveland Medical Center, Cleveland, Ohio, USA
| | - Jennifer A Sweet
- Case Western Reserve University School of Medicine, Cleveland, Ohio, USA
- Department of Neurological Surgery, University Hospitals Cleveland Medical Center, Cleveland, Ohio, USA
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Horisawa S, Kawamata T, Taira T. Seven-year resolution of cervical dystonia after unilateral pallidotomy: A case report. Surg Neurol Int 2022; 13:586. [PMID: 36600748 PMCID: PMC9805625 DOI: 10.25259/sni_840_2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Accepted: 11/26/2022] [Indexed: 12/24/2022] Open
Abstract
Background Reports on the long-term effects of pallidotomy for cervical dystonia remain scarce. Case Description We report a case of cervical dystonia successfully treated by unilateral pallidotomy. The patient was a 29-year-old man without past medical and family history of cervical dystonia. At the age of 28 years, neck rotation to the right with right shoulder elevation developed and gradually became worse. After symptoms failed to respond to repetitive botulinum toxin injections and oral medications, he underwent left pallidotomy, which resulted in significant improvement of cervical dystonia and shoulder elevation without surgical complications. At the 3-month evaluation, the symptoms completely improved. The Toronto Western Spasmodic Torticollis Rating Scale score dramatically improved from 39 points before surgery to 0 points at 7-year postoperative evaluation. Conclusion This case suggests that unilateral pallidotomy can be an alternative treatment option for cervical dystonia.
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Affiliation(s)
- Shiro Horisawa
- Corresponding author: Shiro Horisawa, Department of Neurosurgery, Tokyo Women’s Medical University, Tokyo, Japan.
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Serva SN, Bernstein J, Thompson JA, Kern DS, Ojemann SG. An update on advanced therapies for Parkinson's disease: From gene therapy to neuromodulation. Front Surg 2022; 9:863921. [PMID: 36211256 PMCID: PMC9537763 DOI: 10.3389/fsurg.2022.863921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 08/30/2022] [Indexed: 11/13/2022] Open
Abstract
Advanced Parkinson's disease (PD) is characterized by increasingly debilitating impaired movements that include motor fluctuations and dyskinesias. At this stage of the disease, pharmacological management can result in unsatisfactory clinical benefits and increase the occurrence of adverse effects, leading to the consideration of advanced therapies. The scope of this review is to provide an overview of currently available therapies for advanced PD, specifically levodopa–carbidopa intestinal gel, continuous subcutaneous apomorphine infusion, radiofrequency ablation, stereotactic radiosurgery, MRI-guided focused ultrasound, and deep brain stimulation. Therapies in clinical trials are also discussed, including novel formulations of subcutaneous carbidopa/levodopa, gene-implantation therapies, and cell-based therapies. This review focuses on the clinical outcomes and adverse effects of the various therapies and also considers patient-specific characteristics that may influence treatment choice. This review can equip providers with updated information on advanced therapies in PD to better counsel patients on the available options.
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Affiliation(s)
- Stephanie N. Serva
- School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | - Jacob Bernstein
- Department of Neurosurgery, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | - John A. Thompson
- Department of Neurosurgery, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
- Department of Neurology, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | - Drew S. Kern
- Department of Neurosurgery, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
- Department of Neurology, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
- Correspondence: Steven G. Ojemann Drew S. Kern
| | - Steven G. Ojemann
- Department of Neurosurgery, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
- Department of Neurology, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
- Correspondence: Steven G. Ojemann Drew S. Kern
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Eisenberg HM, Krishna V, Elias WJ, Cosgrove GR, Gandhi D, Aldrich CE, Fishman PS. MR-guided focused ultrasound pallidotomy for Parkinson's disease: safety and feasibility. J Neurosurg 2021; 135:792-798. [PMID: 33481557 DOI: 10.3171/2020.6.jns192773] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Accepted: 06/29/2020] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Stereotactic radiofrequency pallidotomy has demonstrated improvement in motor fluctuations in patients with Parkinson's disease (PD), particularly levodopa (L-dopa)-induced dyskinesias. The authors aimed to determine whether or not unilateral pallidotomy with MR-guided focused ultrasound (MRgFUS) could safely improve Unified Dyskinesia Rating Scale (UDysRS; the primary outcome measure) scores over baseline scores in patients with PD. METHODS Twenty patients with PD and L-dopa responsiveness, asymmetrical motor signs, and motor fluctuations, including dyskinesias, participated in a 1-year multicenter open-label trial of unilateral MRgFUS ablation of the globus pallidus internus. RESULTS The sonication procedure was successfully completed in all 20 enrolled patients. MRgFUS-related adverse neurological events were generally mild and transient, including visual field deficit (n = 1), dysarthria (n = 4, 2 mild and 2 moderate), cognitive disturbance (n = 1), fine motor deficit (n = 2), and facial weakness (n = 1). Although 3 adverse events (AEs) were rated as severe (transient sonication-related pain in 2, nausea/vomiting in 1), no AE fulfilled US FDA criteria for a Serious Adverse Effect. Total UDysRS, the primary outcome measure, improved 59% after treatment (baseline mean score 36.1, 95% CI 4.88; at 3 months 14.2, 95% CI 5.72, p < 0.0001), which was sustained throughout the study (at 12 months 20.5, 95% CI 7.39, 43% improvement, p < 0.0001). The severity of motor signs on the treated side (Movement Disorder Society version of the United Parkinson's Disease Rating Scale [MDS-UPDRS] part III) in the "off" medication state also significantly improved (baseline mean score 20.0, 95% CI 2.4; at 3 months 10.6, 95% CI 1.86, 44.5% improvement, p < 0.0001; at 12 months 10.4, 95% CI 2.11, 45.2% improvement, p > 0.0001). The vast majority of patients showed a clinically meaningful level of improvement on the impairment component of the UDysRS or the motor component of the UPDRS, while 1 patient showed clinically meaningful worsening on the UPDRS at month 3. CONCLUSIONS This study supports the feasibility and preliminary efficacy of MRgFUS pallidotomy in the treatment of patients with PD and motor fluctuations, including dyskinesias. These preliminary data support continued investigation, and a placebo-controlled, blinded trial is in progress. Clinical trial registration no.: NCT02263885 (clinicaltrials.gov).
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Affiliation(s)
| | - Vibhor Krishna
- 2Department of Neurosurgery, Ohio State University Medical Center, Columbus, Ohio
| | - W Jeffrey Elias
- 3Department of Neurosurgery, University of Virginia Health Sciences Center, Charlottesville, Virginia; and
| | - G Rees Cosgrove
- 4Department of Neurosurgery, Brigham and Women's Hospital, Boston, Massachusetts
| | | | | | - Paul S Fishman
- 6Neurology, University of Maryland School of Medicine, Baltimore, Maryland
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Horisawa S, Fukui A, Nonaka T, Kawamata T, Taira T. Radiofrequency Ablation for Movement Disorders: Risk Factors for Intracerebral Hemorrhage, a Retrospective Analysis. Oper Neurosurg (Hagerstown) 2021; 21:143-149. [PMID: 34098579 DOI: 10.1093/ons/opab169] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Accepted: 03/14/2021] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND One of the greatest concerns associated with radiofrequency ablation is intracerebral hemorrhage (ICH). However, the majority of previous studies have mainly evaluated Parkinson disease patients with ablation of the globus pallidus internus (GPi). OBJECTIVE To investigate the hemorrhagic risk associated with radiofrequency ablation using ventro-oral (Vo) nucleus, ventral intermediate (Vim) nucleus, GPi, and pallidothalamic tract. METHODS Radiofrequency ablations for movement disorders from 2012 to 2019 at our institution were retrospectively analyzed. Multivariate analyses were performed to evaluate associations between potential risk factors and ICH. RESULTS A total of 558 patients underwent 721 stereotactic radiofrequency ablations for movement disorders. Among 558 patients, 356 had dystonia, 111 had essential tremor, and 51 had Parkinson disease. Among 721 procedures, the stereotactic targets used in this study were as follows: Vo: 230; Vim: 199; GPi: 172; pallidothalamic tract: 102; Vim/Vo: 18. ICH occurred in 37 patients (5.1%, 33 with dystonia and 4 with essential tremor). Symptomatic ICH developed in 3 Vo nuclei (1.3%), 3 Vim nuclei (1.5%), and 2 GPi (1.2%). Hypertension (odds ratio = 2.69, P = .0013), higher number of lesions (odds ratio = 1.23, P = .0221), and younger age (odds ratio = 1.04, P = .0055) were significant risk factors for ICH associated with radiofrequency ablation. CONCLUSION The present study revealed that younger age, higher number of lesions, and history of hypertension were independent risk factors for ICH associated with stereotactic radiofrequency ablation.
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Affiliation(s)
- Shiro Horisawa
- Department of Neurosurgery, Neurological Institute, TokyoWomen's Medical University, Tokyo, Japan
| | - Atsushi Fukui
- Department of Neurosurgery, Neurological Institute, TokyoWomen's Medical University, Tokyo, Japan
| | - Taku Nonaka
- Department of Neurosurgery, Neurological Institute, TokyoWomen's Medical University, Tokyo, Japan
| | - Takakazu Kawamata
- Department of Neurosurgery, Neurological Institute, TokyoWomen's Medical University, Tokyo, Japan
| | - Takaomi Taira
- Department of Neurosurgery, Neurological Institute, TokyoWomen's Medical University, Tokyo, Japan
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Moosa S, Martínez-Fernández R, Elias WJ, Del Alamo M, Eisenberg HM, Fishman PS. The role of high-intensity focused ultrasound as a symptomatic treatment for Parkinson's disease. Mov Disord 2019; 34:1243-1251. [PMID: 31291491 DOI: 10.1002/mds.27779] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 04/30/2019] [Accepted: 05/02/2019] [Indexed: 12/13/2022] Open
Abstract
MR-guided focused ultrasound is a novel, minimally invasive surgical procedure for symptomatic treatment of PD. With this technology, the ventral intermediate nucleus, STN, and internal globus pallidus have been targeted for therapeutic cerebral ablation, while also minimizing the risk of hemorrhage and infection from more invasive neurosurgical procedures. In a double-blinded, prospective, sham-controlled randomized controlled trial of MR-guided focused ultrasound thalamotomy for treatment of tremor-dominant PD, 62% of treated patients demonstrated improvement in tremor scores from baseline to 3 months postoperatively, as compared to 22% in the sham group. There has been only one open-label trial of MR-guided focused ultrasound subthalamotomy for patients with PD, demonstrating improvements of 71% for rigidity, 36% for akinesia, and 77% for tremor 6 months after treatment. Among the two open-label trials of MR-guided focused ultrasound pallidotomy for patients with PD, dyskinesia and overall motor scores improved up to 52% and 45% at 6 months postoperatively. Although MR-guided focused ultrasound thalamotomy is now approved by the U.S. Food and Drug Administration for treatment of parkinsonian tremor, additional high-quality randomized controlled trials are warranted and are underway to determine the safety and efficacy of MR-guided focused ultrasound subthalamotomy and pallidotomy for treatment of the cardinal features of PD. These studies will be paramount to aid clinicians to determine the ideal ablative target for individual patients. Additional work will be required to assess the durability of MR-guided focused ultrasound lesions, ideal timing of MR-guided focused ultrasound ablation in the course of PD, and the safety of performing bilateral lesions. © 2019 International Parkinson and Movement Disorder Society.
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Affiliation(s)
- Shayan Moosa
- Department of Neurological Surgery, University of Virginia Health System, Charlottesville, Virginia, USA
| | - Raul Martínez-Fernández
- CINAC (Centro Integral de Neurociencias), University Hospital HM Puerta del Sur, CEU-San Pablo University, Móstoles, Madrid, Spain
| | - W Jeffrey Elias
- Department of Neurological Surgery, University of Virginia Health System, Charlottesville, Virginia, USA
| | - Marta Del Alamo
- CINAC (Centro Integral de Neurociencias), University Hospital HM Puerta del Sur, CEU-San Pablo University, Móstoles, Madrid, Spain
| | | | - Paul S Fishman
- University of Maryland School of Medicine, Baltimore, Maryland, USA
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Krauss P, Marahori NA, Oertel MF, Barth F, Stieglitz LH. Better Hemodynamics and Less Antihypertensive Medication: Comparison of Scalp Block and Local Infiltration Anesthesia for Skull-Pin Placement in Awake Deep Brain Stimulation Surgery. World Neurosurg 2018; 120:e991-e999. [DOI: 10.1016/j.wneu.2018.08.210] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 08/24/2018] [Accepted: 08/27/2018] [Indexed: 11/26/2022]
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10
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Roberts DP, Lewis SJG. Considerations for general anaesthesia in Parkinson's disease. J Clin Neurosci 2017; 48:34-41. [PMID: 29133106 DOI: 10.1016/j.jocn.2017.10.062] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Accepted: 10/23/2017] [Indexed: 12/19/2022]
Abstract
Parkinson's disease is a common neurodegenerative disorder in the elderly which when present has a significant influence on surgical management. These patients necessitate additional perioperative and anaesthetic considerations across disease specific domains as well as in relation to the respiratory and cardiovascular systems. This brief review focuses on the factors which contribute to perioperative morbidity, including the use of medications that may exacerbate symptoms or adversely interact with treatments for Parkinson's disease. Recommended dosing practices to reduce complications during hospitalisation are covered. In addition, recent concerns regarding anaesthetic exposure in early childhood as a risk factor for the development of Parkinson's disease are discussed in light of data from animal models of anaesthetic neurotoxicity and epidemiological studies.
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Affiliation(s)
| | - Simon J G Lewis
- Parkinson's Disease Research Clinic, Brain and Mind Centre, University of Sydney, NSW, Australia.
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11
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Chen T, Mirzadeh Z, Ponce FA. "Asleep" Deep Brain Stimulation Surgery: A Critical Review of the Literature. World Neurosurg 2017; 105:191-198. [PMID: 28526642 DOI: 10.1016/j.wneu.2017.05.042] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Revised: 05/05/2017] [Accepted: 05/06/2017] [Indexed: 11/16/2022]
Abstract
OBJECTIVE Although performing deep brain stimulation (DBS) with the patient under general anesthesia without microelectrode recording (MER) or intraoperative test stimulation (ITS) for movement disorders ("asleep" DBS) has become increasingly popular, its feasibility is based on the untested assumption that stereotactic accuracy correlates with positive clinical outcomes. To investigate outcomes after asleep DBS without MER or neurophysiological testing, we reviewed the medical literature on the topic. METHODS We searched PubMed to identify all studies reporting clinical outcomes for patients who underwent DBS without MER or ITS for Parkinson disease (PD) or essential tremor (ET). RESULTS We identified 9 studies with level 3b (n = 3) or level 4 evidence (n = 6). Eight PD studies (220 patients) reported asleep placement of 431 electrodes (341 subthalamic nucleus, 90 globus pallidus interna). Unified Parkinson Disease Rating Scale motor examination-III scores for 208 patients demonstrated significant improvement (40.2%-65%) at 6-12 months. The levodopa equivalent daily dose for 115 patients was significantly reduced (14%-49.3%) at 6-12 months in 103 patients. Two studies with a comparison cohort undergoing "awake" DBS with MER found no differences in postoperative Unified Parkinson Disease Rating Scale-III improvement or levodopa equivalent daily dose reduction. One study of asleep DBS for ET found no difference in functional outcomes between 17 patients undergoing asleep ventral intermediate nucleus DBS and 40 patients undergoing awake placement with ITS. CONCLUSIONS Initial evidence suggests that asleep DBS can be performed safely for PD and ET with good clinical outcomes. Long-term follow-up, larger cohorts, and double-armed studies are needed to validate these initial results.
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Affiliation(s)
- Tsinsue Chen
- Department of Neurosurgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, Arizona, USA
| | - Zaman Mirzadeh
- Department of Neurosurgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, Arizona, USA
| | - Francisco A Ponce
- Department of Neurosurgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, Arizona, USA.
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12
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Burchiel KJ. Deep Brain Stimulation Targets, Technology, and Trials: Two Decades of Progress. Neurosurgery 2016; 63 Suppl 1:6-9. [PMID: 27399357 DOI: 10.1227/neu.0000000000001303] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
ABBREVIATIONS AD, Alzheimer diseaseDBS, Deep brain stimulationFDA, Food and Drug AdministrationMER, Microelectrode recording.
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Affiliation(s)
- Kim J Burchiel
- Department of Neurological Surgery, Oregon Health & Science University, Portland, Oregon
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13
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Higuchi Y, Matsuda S, Serizawa T. Gamma knife radiosurgery in movement disorders: Indications and limitations. Mov Disord 2016; 32:28-35. [DOI: 10.1002/mds.26625] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Revised: 02/29/2016] [Accepted: 03/02/2016] [Indexed: 11/09/2022] Open
Affiliation(s)
- Yoshinori Higuchi
- Department of Neurological Surgery; Chiba University Graduate School of Medicine; Chiba Japan
| | - Shinji Matsuda
- Department of Neurology and Strokology; Chiba Central Medical Center; Chiba Japan
| | - Toru Serizawa
- Tokyo Gamma Unit Center; Tsukiji Neurological Clinic; Tokyo Japan
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14
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Rughani AI, Hodaie M, Lozano AM. Acute complications of movement disorders surgery: Effects of age and comorbidities. Mov Disord 2013; 28:1661-7. [DOI: 10.1002/mds.25610] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2013] [Revised: 05/02/2013] [Accepted: 05/31/2013] [Indexed: 11/05/2022] Open
Affiliation(s)
- Anand I. Rughani
- Neuroscience Institute; Maine Medical Center; Portland Maine, United States
| | - Mojgan Hodaie
- Division of Neurosurgery; University of Toronto, Toronto Western Hospital/University Health Network; Toronto Canada
| | - Andres M. Lozano
- Division of Neurosurgery; University of Toronto, Toronto Western Hospital/University Health Network; Toronto Canada
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15
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Zrinzo L, Foltynie T, Limousin P, Hariz MI. Reducing hemorrhagic complications in functional neurosurgery: a large case series and systematic literature review. J Neurosurg 2012; 116:84-94. [PMID: 21905798 DOI: 10.3171/2011.8.jns101407] [Citation(s) in RCA: 235] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Object
Hemorrhagic complications carry by far the highest risk of devastating neurological outcome in functional neurosurgery. Literature published over the past 10 years suggests that hemorrhage, although relatively rare, remains a significant problem. Estimating the true incidence of and risk factors for hemorrhage in functional neurosurgery is a challenging issue.
Methods
The authors analyzed the hemorrhage rate in a consecutive series of 214 patients undergoing imageguided deep brain stimulation (DBS) lead placement without microelectrode recording (MER) and with routine postoperative MR imaging lead verification. They also conducted a systematic review of the literature on stereotactic ablative surgery and DBS over a 10-year period to determine the incidence and risk factors for hemorrhage as a complication of functional neurosurgery.
Results
The total incidence of hemorrhage in our series of image-guided DBS was 0.9%: asymptomatic in 0.5%, symptomatic in 0.5%, and causing permanent deficit in 0.0% of patients. Weighted means calculated from the literature review suggest that the overall incidence of hemorrhage in functional neurosurgery is 5.0%, with asymptomatic hemorrhage occurring in 1.9% of patients, symptomatic hemorrhage in 2.1% and hemorrhage resulting in permanent deficit or death in 1.1%. Hypertension and age were the most important patient-related factors associated with an increased risk of hemorrhage. Risk factors related to surgical technique included use of MER, number of MER penetrations, as well as sulcal or ventricular involvement by the trajectory. The incidence of hemorrhage in studies adopting an image-guided and image-verified approach without MER was significantly lower than that reported with other operative techniques (p < 0.001 for total number of hemorrhages, p < 0.001 for asymptomatic hemorrhage, p < 0.004 for symptomatic hemorrhage, and p = 0.001 for hemorrhage leading to permanent deficit; Fisher exact test).
Conclusions
Age and a history of hypertension are associated with an increased risk of hemorrhage in functional neurosurgery. Surgical factors that increase the risk of hemorrhage include the use of MER and sulcal or ventricular incursion. The meticulous use of neuroimaging—both in planning the trajectory and for target verification—can avoid all of these surgery-related risk factors and appears to carry a significantly lower risk of hemorrhage and associated permanent deficit.
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Affiliation(s)
- Ludvic Zrinzo
- 1Unit of Functional Neurosurgery, Sobell Department of Motor Neuroscience and Movement Disorders, Institute of Neurology, University College London
- 2Victor Horsley Department of Neurosurgery, National Hospital for Neurology and Neurosurgery, London, United Kingdom; and
| | - Thomas Foltynie
- 1Unit of Functional Neurosurgery, Sobell Department of Motor Neuroscience and Movement Disorders, Institute of Neurology, University College London
| | - Patricia Limousin
- 1Unit of Functional Neurosurgery, Sobell Department of Motor Neuroscience and Movement Disorders, Institute of Neurology, University College London
| | - Marwan I. Hariz
- 1Unit of Functional Neurosurgery, Sobell Department of Motor Neuroscience and Movement Disorders, Institute of Neurology, University College London
- 3Department of Neurosurgery, University Hospital, Umeå, Sweden
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Review article: anesthetic management of patients undergoing deep brain stimulator insertion. Anesth Analg 2010; 110:1138-45. [PMID: 20142347 DOI: 10.1213/ane.0b013e3181d2a782] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Deep brain stimulation is used for the treatment of patients with neurologic disorders who have an alteration of function, such as movement disorders and other chronic illnesses. The insertion of the deep brain stimulator (DBS) is a minimally invasive procedure that includes the placement of electrodes into deep brain structures for microelectrode recordings and intraoperative clinical testing and connection of the DBS to an implanted pacemaker. The anesthetic technique varies depending on the traditions and requirements of each institution performing these procedures and has included monitored anesthesia with local anesthesia, conscious sedation, and general anesthesia. The challenges and demands for the anesthesiologist in the care of these patients relate to the specific concerns of the patients with functional neurologic disorders, the effects of anesthetic drugs on microelectrode recordings, and the requirements of the surgical procedure, which often include an awake and cooperative patient. The purpose of this review is to familiarize anesthesiologists with deep brain stimulation by discussing the mechanism, the effects of anesthetic drugs, and the surgical procedure of DBS insertion, and the perioperative assessment, preparation, intraoperative anesthetic management, and complications in patients with functional neurologic disorders.
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Ben-Haim S, Asaad WF, Gale JT, Eskandar EN. Risk factors for hemorrhage during microelectrode-guided deep brain stimulation and the introduction of an improved microelectrode design. Neurosurgery 2009; 64:754-62; discussion 762-3. [PMID: 19349834 DOI: 10.1227/01.neu.0000339173.77240.34] [Citation(s) in RCA: 105] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE Hemorrhage is an infrequent but potentially devastating complication of deep brain stimulation (DBS) surgery. We examined the factors associated with hemorrhage after DBS surgery and evaluated a modified microelectrode design that may improve the safety of this procedure. METHODS All microelectrode-guided DBS procedures performed at our institution between January 2000 and March 2008 were included in this study. A new microelectrode design with decreased diameter was introduced in May 2004, and data from the 2 types of electrodes were compared. RESULTS We examined 246 microelectrode-guided lead implantations in 130 patients. Postoperative imaging revealed 7 hemorrhages (2.8%). Five of the 7 (2.0%) resulted in focal neurological deficits, all of which resolved within 1 month with the exception of 1 patient lost to follow-up. The new microelectrode design significantly decreased the number of hemorrhages (P = 0.04). A surgical trajectory traversing the ventricle also contributed significantly to the overall hemorrhage rate (P = 0.02) and specifically to the intraventricular hemorrhage rate (P = 0.01). In addition, the new microelectrode design significantly decreased the rate of intraventricular hemorrhage, given a ventricular penetration (P = 0.01). The mean age of patients with hemorrhage was significantly higher than that of patients without hemorrhage (P = 0.02). Hypertension, sex, and number of microelectrodes passed did not significantly contribute to hemorrhage rates in our population. CONCLUSION The rate of complications after DBS surgery is not uniformly distributed across all cases. In particular, the rates of hemorrhage were increased in older patients. Importantly, transventricular electrode trajectories appeared to increase the risk of hemorrhage. A new microelectrode design minimizing the volume of brain parenchyma penetrated during microelectrode recording leads to decreased rates of hemorrhage, particularly if the ventricles are breached.
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Affiliation(s)
- Sharona Ben-Haim
- Department of Neurosurgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
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Çoban A, Hanagasi HA, Karamursel S, Barlas O. Comparison of unilateral pallidotomy and subthalamotomy findings in advanced idiopathic Parkinson's disease. Br J Neurosurg 2009; 23:23-9. [DOI: 10.1080/02688690802507775] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Berger TW, Gerhardt G, Liker MA, Soussou W. The Impact of Neurotechnology on Rehabilitation. IEEE Rev Biomed Eng 2008; 1:157-97. [PMID: 22274903 DOI: 10.1109/rbme.2008.2008687] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Theodore W Berger
- Department of Biomedical Engineering, Center for Neural Engineering, Viterbi School of Engineering, University of Southern California, Los Angeles, CA 90089, USA
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21
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Abstract
BACKGROUND Deep brain stimulation (DBS) has emerged as an important treatment for medication refractory movement and neuropsychiatric disorders. General neurologists and even general practitioners may be called upon to screen potential candidates for DBS. The patient selection process plays an important role in this procedure. REVIEW SUMMARY In this article, we discuss "pearls" for the clinician who may be called upon to identify appropriate candidates for DBS. Additionally, we will discuss the important points that should be considered when referring patients for surgical intervention. CONCLUSION Diagnosis, response to levodopa, cognitive status, psychiatric status, access to care, and patient expectations are all essential elements of the patient selection process for DBS. These areas must be adequately addressed prior to any surgical procedure.
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Affiliation(s)
- Ramon L Rodriguez
- Department of Neurology, University of Florida Movement Disorders Center, McKnight Brain Institute, Gainesville, Florida, USA.
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York MK, Lai EC, Jankovic J, Macias A, Atassi F, Levin HS, Grossman RG. Short and long-term motor and cognitive outcome of staged bilateral pallidotomy: a retrospective analysis. Acta Neurochir (Wien) 2007; 149:857-66; discussion 866. [PMID: 17624489 DOI: 10.1007/s00701-007-1242-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2006] [Accepted: 06/11/2007] [Indexed: 10/23/2022]
Abstract
BACKGROUND We investigated retrospectively the short and long-term motor and cognitive functioning of staged bilateral pallidotomy using motor testing and a comprehensive neuropsychological battery before and after each procedure. METHODS Fifteen patients with idiopathic Parkinson's disease were assessed at baseline and at least 3 months after each of their two staged surgeries. Motor and neuropsychological results were compared to 15 non-surgical Parkinson's disease patients matched for disease stage and mental status. In addition, nine bilateral pallidotomy patients were evaluated for long-term cognitive changes (>2 years). FINDINGS Bilateral pallidotomy patients demonstrated significant improvements in motor functioning in the "on" and "off" states and with dyskinesias after the first surgery, with an additional improvement reported for dyskinesias after the second procedure. On long-term follow-up, dyskinesia improvements were maintained. Bilateral pallidotomy patients did not show significant cognitive declines following both procedures on the short-term follow-up and when compared to the Parkinson's disease group. However, significant cognitive declines were found on the long-term follow-up evaluation. CONCLUSIONS Parkinson's disease patients received significant short- and long-term motor benefits, particularly reduced dyskinesias, following staged bilateral pallidotomy without significant short-term cognitive consequences. Two years following the second procedure, bilateral pallidotomy patients tended to show an increase in both motor and non-motor symptoms of Parkinson's disease, particularly cognitive decline.
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Affiliation(s)
- M K York
- Department of Neurology, Baylor College of Medicine, Houston, Texas 77030, USA.
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Okun MS, Rodriguez RL, Mikos A, Miller K, Kellison I, Kirsch-Darrow L, Wint DP, Springer U, Fernandez HH, Foote KD, Crucian G, Bowers D. Deep brain stimulation and the role of the neuropsychologist. Clin Neuropsychol 2007; 21:162-89. [PMID: 17366283 DOI: 10.1080/13825580601025940] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Deep brain stimulation (DBS) now plays an important role in the treatment of Parkinson's disease, tremor, and dystonia. DBS may also have a role in the treatment of other disorders such as obsessive-compulsive disorder, Tourette's syndrome, and depression. The neuropsychologist plays a crucial role in patient selection, follow-up, and management of intra-operative and post-operative effects (Pillon, 2002; Saint-Cyr & Trepanier, 2000). There is now emerging evidence that DBS can induce mood, cognitive, and behavioral changes. These changes can have dramatic effects on patient outcome. There have been methodological problems with many of the studies of DBS on mood, cognition, and behavior. The neuropsychologist needs to be aware of these issues when following up patients, and constructing future studies. Additionally, this article will review all aspects of the DBS procedure that can result in mood, cognitive, and behavioral effects and what role(s) the neuropsychologist should play in screening and follow-up.
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Affiliation(s)
- Michael S Okun
- Department of Neurology, Movement Disorders Center, University of Florida, Gainesville, FL 32610, USA.
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Levy R, Lozano AM, Hutchison WD, Dostrovsky JO. DUAL MICROELECTRODE TECHNIQUE FOR DEEP BRAIN STEREOTACTIC SURGERY IN HUMANS. Oper Neurosurg (Hagerstown) 2007; 60:277-83; discussion 283-4. [PMID: 17415164 DOI: 10.1227/01.neu.0000255389.85161.03] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE To improve functional stereotactic microelectrode localization of small deep brain structures by developing and evaluating a recording system with two closely separated independently controlled microelectrodes. METHODS Data were obtained from 52 patients using this dual microelectrode technique and 38 patients using the standard single microelectrode technique for subthalamic nucleus localization in patients with Parkinson's disease. RESULTS There was a decrease in the incidence of noncontributory trajectories, defined as a single penetration made by the pair of closely spaced parallel microelectrodes, owing to microelectrode failure (from 7.2% to <1%), an improved localization and verification of nuclear borders, and a significant decrease in the number of trajectories used to localize the subthalamic nucleus from a median of three to two per initial operative side (P < 0.001). The technique also provides the novel opportunity to examine population activity by correlating the discharge between two closely spaced simultaneously recorded neurons and can be used to monitor the electrophysiological effects of local electrical stimulation or microinjections of pharmacological agents. CONCLUSION Our experience indicates that the use of two closely spaced microelectrodes improves the utility of microelectrode localization in minimally invasive functional neurosurgery.
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Affiliation(s)
- Ron Levy
- Department of Physiology, University of Toronto, Toronto, Canada
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Chung SJ, Hong SH, Kim SR, Lee MC, Jeon SR. Efficacy and safety of simultaneous bilateral pallidotomy in advanced Parkinson's disease. Eur Neurol 2006; 56:113-8. [PMID: 16960451 DOI: 10.1159/000095701] [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] [Received: 02/17/2006] [Accepted: 07/07/2006] [Indexed: 11/19/2022]
Abstract
BACKGROUND Although unilateral pallidotomy is generally considered a safe and effective neurosurgical treatment for advanced Parkinson's disease (PD), controversies concerning efficacy and adverse effects of bilateral posteroventral pallidotomy (PVP) exist and need to be resolved. METHODS We studied 8 patients with advanced PD who underwent simultaneous bilateral PVP. The patients were assessed preoperatively, immediately after surgery, and 6 and 12 months later. RESULTS Dyskinesia was almost entirely abolished immediately after surgery, as well as being significantly lower 1 year later (p < 0.05). The 'off' medication score of the Unified Parkinson's Disease Rating Scale motor part (UPDRS III) was significantly improved after surgery (p < 0.05) but increased gradually after 6 months. The off medication score of activities of daily living tended to improve immediately after surgery, but it returned to preoperative levels at 12 months. There were no major complications of surgery. CONCLUSIONS Simultaneous bilateral PVP may be a safe and highly effective method of reducing levodopa-induced dyskinesia. Our results suggest that simultaneous bilateral PVP may be a reasonable therapeutic option for advanced PD with severe levodopa-induced dyskinesia.
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Affiliation(s)
- Sun J Chung
- Department of Neurology, Center for Parkinsonism and Other Movement Disorders, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
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Blomstedt P, Hariz MI. Are Complications Less Common in Deep Brain Stimulation than in Ablative Procedures for Movement Disorders? Stereotact Funct Neurosurg 2006; 84:72-81. [PMID: 16790989 DOI: 10.1159/000094035] [Citation(s) in RCA: 94] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The side effects and complications of deep brain stimulation (DBS) and ablative lesions for tremor and Parkinson's disease were recorded in 256 procedures (129 DBS and 127 lesions). Perioperative complications (seizures, haemorrhage, confusion) were rare and did not differ between the two groups. The rate of hardware-related complications was 17.8%. In ventral intermediate (Vim) thalamotomies, the rate of side effects was 74.5%, in unilateral Vim-DBS 47.3%, while in 7 bilateral Vim-DBS 13 side effects occurred. Most of the side effects of Vim-DBS were reversible upon switching off, or altering, stimulation parameters. In unilateral pallidotomy, the frequency of side effects was 21.9%, while in bilateral staged pallidotomies it was 33.3%. Eight side effects occurred in 11 procedures with pallidal DBS. In 22 subthalamic nucleus DBS procedures, 23 side effects occurred, of which 8 were psychiatric or cognitive. Unilateral ablative surgery may not harbour more postoperative complications or side effects than DBS. Some of the side effects following lesioning are transient and most but not all DBS side effects are reversible. In the Vim DBS is safer than lesioning, while in the pallidum, unilateral lesions are well tolerated.
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Affiliation(s)
- Patric Blomstedt
- Department of Neurosurgery, University Hospital of Northern Sweden, Umeå, Sweden.
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Binder DK, Rau GM, Starr PA. Risk factors for hemorrhage during microelectrode-guided deep brain stimulator implantation for movement disorders. Neurosurgery 2006; 56:722-32; discussion 722-32. [PMID: 15792511 DOI: 10.1227/01.neu.0000156473.57196.7e] [Citation(s) in RCA: 223] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2004] [Accepted: 12/02/2004] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE Although hemorrhage is a well-known complication of microelectrode-guided deep brain stimulation (DBS) surgery, risk factors for the development of hemorrhage have not been well defined. We analyzed the risk factors for symptomatic and asymptomatic hemorrhage in a large series of DBS implantations into the subthalamic nucleus, ventrolateral thalamus, and internal globus pallidus. METHODS All DBS procedures performed by a single surgeon at our institution between June 1998 and May 2004 were included in this study. All patients had postoperative imaging (magnetic resonance imaging or computed tomography) 4 to 24 hours after surgery. Hematomas were noted and scored as symptomatic or asymptomatic. Statistical correlation of factors affecting risk of hematoma formation was performed by use of logistic regression analysis. RESULTS The total number of lead implantations was 481. There were 6 symptomatic hematomas and 10 asymptomatic hematomas. Three of the symptomatic hematomas resulted in permanent new neurological deficit. The risk of hematoma (of any type) per lead implantation was 3.3%, whereas the risk of permanent deficit from hematoma was 0.6%. Patients who developed hematomas had a slightly greater number of microelectrode recording penetrations than patients who did not have hematomas, but this difference did not reach statistical significance. There was not a statistically significant relationship between risk of hematoma and patient age or diagnosis. There was a significant effect of brain target (P = 0.001), with only 1 hemorrhage detected after thalamic DBS. CONCLUSION DBS is generally safe, with only 0.6% of implantations associated with permanent neurological deficit. The incremental risk of successive serial microelectrode penetrations is small.
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Affiliation(s)
- Devin K Binder
- Department of Neurological Surgery, Moffitt Hospital, University of California, San Francisco 94143-0112, USA.
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Venkatraghavan L, Manninen P, Mak P, Lukitto K, Hodaie M, Lozano A. Anesthesia for Functional Neurosurgery. J Neurosurg Anesthesiol 2006; 18:64-7. [PMID: 16369142 DOI: 10.1097/01.ana.0000181285.71597.e8] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The use of functional stereotactic neurosurgery is increasing for treatment of patients with movement disorders and other chronic illnesses. The anesthetic considerations include the influence of the anesthetic agents on the microelectrode recordings and stimulation testing of an awake patient. The purpose of this study was to review the anesthetic management and incidences of intraoperative complications during functional neurosurgery in our institution. One hundred seventy-eight patients underwent an ablative procedure (n = 6) or the insertion of deep brain stimulator (n = 172) under monitored anesthesia care for movement disorders (n = 124), chronic pain (n = 20), and other procedures (n = 34). Local anesthetic was used for head frame pin sites and burr holes. No sedation/analgesia was administered to 57 (32%) patients. One patient required conscious sedation and another general anesthesia for the entire procedure. The remainder received small increments (mean +/- SD) of propofol (113 +/- 73 mg), midazolam (1.6 +/- 0.8 mg), and/or fentanyl (93 +/- 55 mug). Intraoperative complications that occurred in 16% of the patients included seizures (n = 8), change in neurologic status (n = 5), airway obstruction (n = 2), and hypertension (n = 7). Functional neurosurgery can be performed with minimal anesthesia in many patients. Awareness and vigilance can improve the identification and early treatment of intraoperative complications such as seizures, loss of airway, and changes in the neurologic status.
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Affiliation(s)
- Lakshmi Venkatraghavan
- Department of Anesthesia, Toronto Western Hospital, University Health Network, University of Toronto, Toronto, Ontario, Canada
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Gorgulho A, De Salles AAF, Frighetto L, Behnke E. Incidence of hemorrhage associated with electrophysiological studies performed using macroelectrodes and microelectrodes in functional neurosurgery. J Neurosurg 2005; 102:888-96. [PMID: 15926715 DOI: 10.3171/jns.2005.102.5.0888] [Citation(s) in RCA: 131] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Object. The goal of this study was to analyze the incidence of intracranial bleeding in patients who underwent procedures guided by microelectrode recording (MER) rather than by macroelectrode stimulation alone.
Methods. Between March 1994 and July 2001, 178 patients underwent 248 functional neurosurgical procedures performed by the same team at the University of California at Los Angeles. The procedures included pallidotomy (122 patients), thalamotomy (19 patients), and implantation of deep brain stimulation electrodes in the subthalamic nucleus (36 patients), globus pallidus internus (17 patients), and ventralis intermedius nucleus (54 patients). One hundred forty-four procedures involved macroelectrode stimulation and 104 involved MER. Groups were analyzed according to the presence of arterial hypertension, MER or macroelectrode stimulation use, and occurrence of hemorrhage. Nineteen patients with arterial hypertension underwent 28 surgical procedures.
Five cases of hemorrhage (2.02%) occurred. One patient presented with hemiparesis and dysphasia but no surgery was required. The incidence of hemorrhage in patients in whom MER was performed was 2.9%, whereas the incidence in patients in whom MER was not used was 1.4% (p = 0.6529). Bleeding occurred in 10.71% of patients with hypertension and 0.91% of those who were nonhypertensive (p = 0.0111). Among the 104 patients in whom MER was performed, 12 had hypertension. Bleeding occurred in two (16.67%) of these 12 patients. An increased incidence of bleeding in hypertensive patients who underwent MER (p = 0.034) was noticed when compared with nonhypertensive patients who underwent MER. A higher number of electrode passes through the parenchyma was observed when MER was used (p = 0.0001). A positive trend between the occurrence of hemorrhage and multiple passes was noticed.
Conclusions. Based on the data the authors suggest that a higher incidence of hemorrhage occurs in hypertensive patients, and a higher incidence as well in hypertensive patients who underwent MER rather than macroeletrode stimulation. Special attention should be given to MER use in hypertensive patients and particular attention should be made to multiple passes.
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Affiliation(s)
- Alessandra Gorgulho
- Division of Neurosurgery, University of California at Los Angeles, California, USA
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Abstract
PURPOSE OF REVIEW Review of the anesthetic considerations for neuroendoscopy and stereotactic procedures. RECENT FINDINGS Minimally invasive procedures are increasingly applied in novel ways in the diagnosis and treatment of neurological pathologies. Endoscopic third ventriculostomy, endoscopic shunt revisions and drainage of intraventricular hematoma using a neuroendoscope have become routine neurosurgical procedures. Stereotaxis has expanded its scope from simple brain biopsy to functional neurosurgery and psychiatry. While these procedures are 'minimally invasive', perioperative critical events may still occur. SUMMARY Vigilance in preoperative assessment and intraoperative monitoring is essential in minimizing perioperative morbidity and mortality in patients undergoing neuroendoscopic and stereotactic procedures.
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Affiliation(s)
- Neus Fàbregas
- Anesthesiology Department, Hospital Clinic, University of Barcelona, Barcelona, Spain.
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Binder DK, Rau G, Starr PA. Hemorrhagic complications of microelectrode-guided deep brain stimulation. Stereotact Funct Neurosurg 2004; 80:28-31. [PMID: 14745205 DOI: 10.1159/000075156] [Citation(s) in RCA: 88] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
BACKGROUND The incidence of intracranial hemorrhage occurring during microelectrode-guided implantation of deep brain stimulators (DBS) for movement disorders has not been well defined. We report the incidence of hemorrhage in a large series of DBS implants into the subthalamic nucleus (STN), thalamus (VIM) and internal globus pallidus (GPi). METHODS All DBS procedures performed by a single surgeon (P.A.S.) between June 1998 and April 2003 were included in this study. Patients had postoperative imaging (MRI or CT) 4-24 h following surgery, and all hematomas >0.2 cm(3) in volume were noted and scored as symptomatic (associated with any new neurologic deficit lasting >24 h) or asymptomatic. RESULTS The total number of lead implants was 357. There were 5 symptomatic hematomas and 6 asymptomatic hematomas. The relative risk of hematoma (any type) per lead implant was 3.1%. The incidence of hematoma by target site was 2.5% per lead for STN-DBS, 6.7% for GPi-DBS and 0% for VIM-DBS. CONCLUSION The overall risk of intraoperative or early postoperative symptomatic hemorrhage with microelectrode-guided DBS, over all targets, was 1.4% per lead implant. The brain target had a significant effect on the risk of hemorrhage.
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Affiliation(s)
- Devin K Binder
- Department of Neurological Surgery, University of California, San Francisco, CA 94143-0112, USA.
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Abstract
No longer are only a limited number of treatments available to help children and their families deal with childhood hypertonia. It is now possible to provide a child with a treatment specific to his or her muscle tone problems and consequently meet the family's functional goals. The prospects can only improve over the next few years, given the level of interest exhibited by pediatric neuro- and orthopedic surgeons supported by pediatricians, pediatric physical and occupational therapists, pediatric neurologists, and pediatric physiatrists.
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Affiliation(s)
- Rick Abbott
- Institute for Neurology and Neurosurgery, Beth Israel Medical Center, 170 East End Avenue, New York, NY 10128, USA.
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