Daniel G Di Luca, Carolina Ramirez-Gomez, Brendan Santyr, Marco Fumagalli, Jürgen Germann, Suneil K Kalia, Andres M Lozano, Alfonso Fasano
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Clinical and Imaging Correlates of Medication Reduction in Globus Pallidus Stimulation for Parkinson's Disease.
Background: The magnitude and factors associated with levodopa equivalent daily dose (LEDD) reduction in deep brain stimulation (DBS) of the globus pallidus interna (GPi) for Parkinson's Disease (PD) remain unclear.
Objective: To investigate LEDD reduction in GPi DBS and its correlation with anatomical/clinical characteristics.
Methods: A consecutive cohort of 74 patients who had undergone GPi DBS was analyzed. Regression and probabilistic efficacy mapping were performed to evaluate factors predicting LEDD reduction.
Results: 32.4% of GPi individuals experienced significant LEDD reduction (>30%). Anteromedial GPi stimulation was associated with higher LEDD reduction.
Conclusion: Anteromedial stimulation of the GPi appears to be associated with medication reduction, challenging the idea that GPi DBS is ineffective at reducing LEDD. Further prospective study will be needed to validate these findings.
期刊介绍:
Movement Disorders Clinical Practice- is an online-only journal committed to publishing high quality peer reviewed articles related to clinical aspects of movement disorders which broadly include phenomenology (interesting case/case series/rarities), investigative (for e.g- genetics, imaging), translational (phenotype-genotype or other) and treatment aspects (clinical guidelines, diagnostic and treatment algorithms)