scholarly journals Subthalamic Nucleus Deep Brain Stimulation in Early Stage Parkinson’s Disease Is Not Associated with Increased Body Mass Index

2017 ◽  
Vol 2017 ◽  
pp. 1-4 ◽  
Author(s):  
Sarah H. Millan ◽  
Mallory L. Hacker ◽  
Maxim Turchan ◽  
Anna L. Molinari ◽  
Amanda D. Currie ◽  
...  

Previous studies suggest that deep brain stimulation of the subthalamic nucleus (STN-DBS) for Parkinson’s disease (PD) leads to weight gain. This study analyzes changes in body mass index (BMI) in 29 subjects from a prospective, single-blind trial of DBS in early stage PD (age 50–75, Hoehn & Yahr stage II off medication, treated with antiparkinsonian medications for ≥6 months but <4 years, and without a history of motor fluctuations, dyskinesias, or dementia). Subjects were randomized to DBS plus optimal drug therapy (DBS+ODT; n=15) or ODT (n=14) and followed for 24 months. Weight and height were recorded at baseline and each follow-up visit and used to calculate BMI. BMIs were compared within and between groups using nonparametric t-tests. Mean BMI at baseline was 29.7 in the ODT group and 32.3 in the DBS+ODT group (p>0.05). BMI change over two years was not different between the groups (p=0.62, ODT = −0.89; DBS+ODT = −0.17). This study suggests that STN-DBS is not associated with weight gain in subjects with early stage PD. This finding will be tested in an upcoming FDA-approved phase III multicenter, randomized, double-blind, placebo-controlled, pivotal clinical trial evaluating DBS in early stage PD (ClinicalTrials.gov identifier NCT00282152).

2021 ◽  
Author(s):  
Katsuki Eguchi ◽  
Shinichi Shirai ◽  
Masaaki Matsushima ◽  
Takahiro Kano ◽  
Kazuyoshi Yamazaki ◽  
...  

Abstract Background Weight gain is a frequently reported side effect of subthalamic deep brain stimulation; however, the underlying mechanisms remain unclear. The active contact locations influence the clinical outcomes of subthalamic deep brain stimulation, but it is unclear whether weight gain is directly associated with the active contact locations. We aimed to determine whether weight gain is associated with the subthalamic deep brain stimulation active contact locations.Methods We enrolled 14 patients with Parkinson’s disease who underwent bilateral subthalamic deep brain stimulation between 2013 and 2019. Bodyweight and body mass index were measured before and one year following surgery. The Lead-DBS Matlab toolbox was used to determine the active contact locations based on magnetic resonance imaging and computed tomography. Fluorodeoxyglucose-positron emission tomography data were also acquired before and one year following surgery, and statistical parametric mapping was used to evaluate changes in brain metabolism. The relationship between weight and active contact locations was evaluated with a Spearman rank test with a corrected p-value < 0.008. We examined which brain regions’ metabolism fluctuation significantly correlated with increased BMI scores and PET data.Results The body mass index increase was 2.03 kg/m2 1 year post-surgery. Weight gain was correlated with anterior and dorsal locations of the left-side active contacts, as well as with lateral locations of the right-side active contacts. Furthermore, weight gain was correlated with increased metabolism in the left-side limbic and associative regions, including the middle temporal gyrus, inferior frontal gyrus, and orbital gyrus.Conclusions Although the mechanisms underlying weight gain following subthalamic deep brain stimulation are possibly multifactorial, our findings suggest that anterior subthalamic deep brain stimulation alters the activities in the limbic and associative cortical regions, which may then lead to weight gain. Weight gain could be prevented by avoiding stimulation to the anterior part of the subthalamic nucleus.


2021 ◽  
Vol 15 ◽  
Author(s):  
Yu Diao ◽  
Yutong Bai ◽  
Tianqi Hu ◽  
Zixiao Yin ◽  
Huangguang Liu ◽  
...  

Pain from Parkinson's disease (PD) is a non-motor symptom affecting the quality of life and has prevalence of 20–80%. However, it is unclear whether subthalamic nucleus deep brain stimulation (STN–DBS), a well-established treatment for PD, is effective forPD-related pain. Thus, the objective of this meta-analysis was to investigate the efficacy of STN-DBS on PD-related pain and explore how its duration affects the efficacy of STN-DBS. A systematic search was performed using PubMed, Embase, and the Cochrane Library. Nine studies included numerical rating scale (NRS), visual analog scale (VAS), or non-motor symptom scale (NMSS) scores at baseline and at the last follow-up visit and therefore met the inclusion criteria of the authors. These studies exhibited moderate- to high-quality evidence. Two reviewers conducted assessments for study eligibility, risk of bias, data extraction, and quality of evidence rating. Random effect meta-analysis revealed a significant change in PD-related pain as assessed by NMSS, NRS, and VAS (P &lt;0.01). Analysis of the short and long follow-up subgroups indicated delayed improvement in PD-related pain. These findings (a) show the efficacy of STN-DBS on PD-related pain and provide higher-level evidence, and (b) implicate delayed improvement in PD-related pain, which may help programming doctors with supplement selecting target and programming.Systematic Review Registration: This study is registered in Open Science Framework (DOI: 10.17605/OSF.IO/DNM6K).


2021 ◽  
Vol 15 ◽  
Author(s):  
Lila H. Levinson ◽  
David J. Caldwell ◽  
Jeneva A. Cronin ◽  
Brady Houston ◽  
Steve I. Perlmutter ◽  
...  

Deep brain stimulation (DBS) of the subthalamic nucleus (STN) is a clinically effective tool for treating medically refractory Parkinson’s disease (PD), but its neural mechanisms remain debated. Previous work has demonstrated that STN DBS results in evoked potentials (EPs) in the primary motor cortex (M1), suggesting that modulation of cortical physiology may be involved in its therapeutic effects. Due to technical challenges presented by high-amplitude DBS artifacts, these EPs are often measured in response to low-frequency stimulation, which is generally ineffective at PD symptom management. This study aims to characterize STN-to-cortex EPs seen during clinically relevant high-frequency STN DBS for PD. Intraoperatively, we applied STN DBS to 6 PD patients while recording electrocorticography (ECoG) from an electrode strip over the ipsilateral central sulcus. Using recently published techniques, we removed large stimulation artifacts to enable quantification of STN-to-cortex EPs. Two cortical EPs were observed – one synchronized with DBS onset and persisting during ongoing stimulation, and one immediately following DBS offset, here termed the “start” and the “end” EPs respectively. The start EP is, to our knowledge, the first long-latency cortical EP reported during ongoing high-frequency DBS. The start and end EPs differ in magnitude (p &lt; 0.05) and latency (p &lt; 0.001), and the end, but not the start, EP magnitude has a significant relationship (p &lt; 0.001, adjusted for random effects of subject) to ongoing high gamma (80–150 Hz) power during the EP. These contrasts may suggest mechanistic or circuit differences in EP production during the two time periods. This represents a potential framework for relating DBS clinical efficacy to the effects of a variety of stimulation parameters on EPs.


Author(s):  
Azari H ◽  

Background: Deep Brain Stimulation (DBS) is regarded as a viable therapeutic choice for Parkinson’s Disease (PD). The two most common sites for DBS are the Subthalamic Nucleus (STN) and Globus Pallidus (GPi). In this study, the clinical effectiveness of these two targets was compared. Methods: A systematic literature search in electronic databases were restricted to English language publications 2010 to 2021. Specified MeSH terms were searched in all databases. Studies that evaluated the Unified Parkinson’s Disease Rating Scale (UPDRS) III were selected by meeting the following criteria: (1) had at least three months follow-up period; (2) compared both GPi and STN DBS; (3) at least five participants in each group; (4) conducted after 2010. Study quality assessment was performed using the Modified Jadad Scale. Results: 3577 potentially relevant articles were identified 3569 were excluded based on title and abstract, duplicate and unsuitable article removal. Eight articles satisfied the inclusion criteria and were scrutinized (458 PD patients). Majority of studies reported no statistically significant between-group difference for improvements in UPDRS III scores. Conclusions: Although there were some results in terms of action tremor, rigidity, and urinary symptoms, which indicated that STN DBS might be a better choice or regarding the adverse effects, GPi seemed better; but it cannot be concluded that one target is superior. Other larger randomized clinical trials with longer follow-up periods and control groups are needed to decide which target is more efficient for stimulation and imposes fewer adverse effects on the patients.


2014 ◽  
Vol 20 (7) ◽  
pp. 731-737 ◽  
Author(s):  
David Charles ◽  
Peter E. Konrad ◽  
Joseph S. Neimat ◽  
Anna L. Molinari ◽  
Michael G. Tramontana ◽  
...  

CNS Spectrums ◽  
2016 ◽  
Vol 21 (3) ◽  
pp. 258-264 ◽  
Author(s):  
Isabel Hindle Fisher ◽  
Hardev S. Pall ◽  
Rosalind D. Mitchell ◽  
Jamilla Kausar ◽  
Andrea E. Cavanna

ObjectiveApathy has been reported as a possible adverse effect of deep brain stimulation of the subthalamic nucleus (STN-DBS). We investigated the prevalence and severity of apathy in 22 patients with Parkinson’s disease (PD) who underwent STN-DBS, as well as the effects of apathy on quality of life (QOL).MethodsAll patients were assessed with the Lille Apathy Rating Scale (LARS), the Apathy Scale (AS), and the Parkinson’s Disease Questionnaire and were compared to a control group of 38 patients on pharmacotherapy alone.ResultsThere were no significant differences in the prevalence or severity of apathy between patients who had undergone STN-DBS and those on pharmacotherapy alone. Significant correlations were observed between poorer QOL and degree of apathy, as measured by the LARS (p<0.001) and the AS (p=0.021). PD-related disability also correlated with both apathy ratings (p<0.001 and p=0.017, respectively).ConclusionOur findings suggest that STN-DBS is not necessarily associated with apathy in the PD population; however, more severe apathy appears to be associated with a higher level of disability due to PD and worse QOL, but no other clinico-demographic characteristics.


Neurosurgery ◽  
2010 ◽  
Vol 67 (4) ◽  
pp. 1088-1093 ◽  
Author(s):  
Helen Brontë-Stewart ◽  
Stephanie Louie ◽  
Sara Batya ◽  
Jaimie M Henderson

Abstract BACKGROUND: Image-guided neuronavigation has largely replaced stereotactic frames when precise, real-time anatomic localization is required during neurosurgical procedures. However, some procedures, including placement of deep-brain stimulation (DBS) leads for the treatment of movement disorders, are still performed using frame-based stereotaxy. Despite the demonstration of comparable accuracy between frame-based and “frameless” image-guided approaches, the clinical efficacy of frameless DBS placement has never been reported. OBJECTIVE: To analyze the outcomes of subthalamic nucleus (STN) DBS using the frameless technique for the treatment of Parkinson's disease (PD). METHODS: Of 31 subjects (20 men) with PD for 10 ± 4 years, 28 had bilateral STN DBS and 3 had unilateral STN DBS. The Unified Parkinson's Disease Rating Scale (UPDRS) motor scale (III) and total medication doses were assessed before surgery on and off medication and off medication/ON DBS (off/ON) after 6 to 12 months of STN DBS. RESULTS: There was a 58% improvement from bilateral STN DBS in the UPDRS III (40 ± 16 preoperatively off, 17 ± 11 off/ON) 9.6 ± 1.9 months after surgery (P &lt; .001). This compared favorably with the published outcomes using the frame-based technique. All motor subscores improved significantly (P &lt; .01). The mean reduction in medication was 50%. No intraoperative complications occurred, but one subject with hypertension died of a delayed hemorrhage postoperatively. Two subjects developed postoperative infections that required lead removal and antibiotics. CONCLUSIONS: Bilateral STN DBS for PD performed by an experienced team using a frameless approach results in outcomes comparable to those reported with the use of the frame-based technique.


2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Yi Xie ◽  
Xiangyu Meng ◽  
Jinsong Xiao ◽  
Jie Zhang ◽  
Junjian Zhang

Background. Nowadays, it has been largely acknowledged that deep brain stimulation of subthalamic nucleus (STN DBS) can alleviate motor symptoms of Parkinson’s disease, but its effects on cognitive function remain unclear, which are not given enough attention by many clinical doctors and researchers. To date, 3 existing meta-analyses focusing on this issue included self-control studies and have not drawn consistent conclusions. The present study is the first to compare effect sizes of primary studies that include control groups, hoping to reveal the net cognitive outcomes after STN DBS and the clinical significance. Methods. A structured literature search was conducted using strict criteria. Only studies with control group could be included. Data on age, duration of disease, levodopa equivalent dosage (LED), and multiple cognitive scales were collected and pooled. Results. Of 172 articles identified, 10 studies (including 3 randomized controlled trials and 7 nonrandomized controlled studies) were eligible for inclusion. The results suggest that STN DBS results in decreased global cognition, memory, verbal fluency, and executive function compared with control group. No significant difference is found in other cognitive domains. Conclusions. STN DBS seems relatively safe with respect to cognitive function, and further studies should focus on the exact mechanisms of possible verbal deterioration after surgery in the future.


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