ArticleJournal of neurology2021
Does pallidal neuromodulation influence cognitive decline in Huntington's disease?
Article in Journal of neurology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
8 authors at 2 institutions in 1 country.
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Abstract
objectiveHuntington's disease (HD) is an autosomal dominant neurodegenerative disorder associated with motor, psychiatric and cognitive deterioration over time. To date, Continuous Electrical Neuromodulation (CEN) of the globus pallidus internus (GPi) has been reported to improve chorea but little is known about cognitive progression in these patients. We propose to examine CEN impact on expected cognitive decline throughout long-term neuropsychological assessment of a cohort of HD patients.
method13 consecutive HD patients underwent GPi neuromodulation between January 2008 and February 2019. Over a 5-year follow-up period, they received systematic pre- and post-operative assessment according to the existing protocol in our unit. The main outcome measure was the total score obtained on the Mattis Dementia Rating Scale (MDRS) as an indicator of global cognitive function.
resultsChorea decreased in all patients postoperatively with a mean improvement of 56% despite disease progression over time, according to previous studies. Moreover we found that the global cognitive profile of HD patients treated with CEN was stable during the first 3 years of treatment.
conclusionWe report an unexpected positive influence of GPi continuous electrical neuromodulation on the progression of global cognitive functioning in operated HD patients. This is the most important group of patients treated with this method to our knowledge whatever the sample size remains small. This result provides promising evidence of GPi-CEN efficacy not only in reducing chorea, but also in delaying cognitive decline in HD patients operated at an early stage of the disease.
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