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COMPARING DIRECTIONAL AND OMNIDIRECTIONAL DEEP BRAIN STIMULATION IN PARKINSON'S DISEASE PATIENTS.
Stereotact Funct Neurosurg
January 2025
Introduction: In 2015, directional leads have been released in Europe for deep brain stimulation (DBS) and have been particularly used for subthalamic nucleus (STN) DBS for Parkinson's disease (PD). In this study we aimed to compare an omnidirectional and directional leads cohort of PD patients when it comes to clinical effectiveness and to assess the correlation with volume of tissue activated - target overlap (VTA-target).
Methods: A total of 60 consecutive patients were retrospectively included.
Efficacy comparison and outcome predictors of GPi- and STN-targeted deep brain stimulation for Meige syndrome: a systematic review of individual patient data.
J Neurosurg
January 2025
1Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing.
Objective: The aim of this study was to evaluate outcomes of deep brain stimulation (DBS) for Meige syndrome, compare the efficacy of globus pallidus internus (GPi) and subthalamic nucleus (STN) as targets, and identify potential outcome predictors.
Methods: The PubMed, Embase, and Web of Science databases were systematically searched to collect individual data from patients with Meige syndrome receiving DBS. Outcomes were assessed using the Burke-Fahn-Marsden Dystonia Rating Scale motor (BFMDRS-M) and disability (BFMDRS-D) scores.
Basal ganglia components have distinct computational roles in decision-making dynamics under conflict and uncertainty.
PLoS Biol
January 2025
Carney Institute for Brain Science, Department of Cognitive & Psychological Sciences, Brown University, Providence, Rhode Island, United States of America.
The basal ganglia (BG) play a key role in decision-making, preventing impulsive actions in some contexts while facilitating fast adaptations in others. The specific contributions of different BG structures to this nuanced behavior remain unclear, particularly under varying situations of noisy and conflicting information that necessitate ongoing adjustments in the balance between speed and accuracy. Theoretical accounts suggest that dynamic regulation of the amount of evidence required to commit to a decision (a dynamic "decision boundary") may be necessary to meet these competing demands.
View Article and Find Full Text PDFParkinson's disease and deep brain stimulation of the subthalamic nucleus (STN-DBS): long-term disease evaluation and neuropsychological outcomes in a 9-year matched-controlled study.
Neurosurg Rev
January 2025
Department of Neurosurgery, Hospital Universitario Fundación Jiménez Díaz, Av. De los Reyes Católicos, 2, Madrid, 28040, Spain.
Matched-controlled long-term disease evaluation and neuropsychological outcomes derived from deep brain stimulation of the subthalamic nucleus (STN-DBS) in Parkinson´s disease (PD) are lacking, with inconsistent results regarding the cognitive impact of this procedure. Here we study the long-term effects associated to DBS comparing outcomes with a matched control group. A prospective observational study of 40 patients with PD with bilateral STN-DBS, with a mean follow-up of 9 (6-12) years was conducted.
View Article and Find Full Text PDFProgressive supranuclear palsy: an updated approach on diagnosis, treatment, risk factors and outlook in Mexico.
Gac Med Mex
January 2025
Laboratorio de Reprogramación Celular y Enfermedades Crónico-Degenerativas, Department of Physiology, Universidad Nacional Autónoma de México, Mexico City, Mexico.
Progressive supranuclear palsy (PSP) is a rare, atypical parkinsonism, characterized by the presence of intracerebral tau protein aggregates and determined by a wide spectrum of clinical features. The definitive diagnosis is postmortem and is identified through the presence of neuronal death, gliosis, and aggregates of the tau protein presented in the form of neurofibrillary tangles (MNF) with a globose appearance in regions such as the subthalamic nucleus, the substantia nigra, and the globus pallidus The findings in ancillary imaging studies, as well as fluids biomarkers, are not sufficient to support diagnosis of PSP but are used to rule out similar pathologies because there are still no specific or validated biomarkers for this disease. The current treatment of PSP is focused on reducing symptoms, although emerging therapies seek to counteract its pathophysiological mechanisms.
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