The medical treatment of patients with Parkinson's disease receiving subthalamic neurostimulation.

Abstract:

INTRODUCTION:Deep brain stimulation of subthalamic nucleus (STN-DBS) for Parkinson's disease allows for a reduction in medication dosage. Changes in total levodopa equivalent daily dose (LEDD) have been frequently reported, there is little information about changes within the drug classes. METHODS:We retrospectively assessed the changes in antiparkinsonian drugs dosages in 150 patients from one center who had preoperative and postoperative evaluations at 6 months and 3 years. Two long term subgroups with postoperative follow-up till the 5th-6th year (n = 58) and 10th year (n = 15) were included. RESULTS:The major modifications in medication dosage occurred during the initial postoperative period. LEDD was reduced by 53.4% compared to baseline at 6 months and 47.9% at 3 years. Fifty six percent and 41.3% of the patients were on monotherapy, 9.3% on no medication at 6 months and 6.7% at 3 years post surgery. Patients on levodopa, or dopamine agonists showed similar reductions. At the 3rd year the oldest group of patients showed a significant decrease in dopamine agonists. The number of patients treated with amantadine was significantly reduced; however the number of patients treated with antidepressants was significantly increased over the first 3 years. Annual medication costs per patient were decreased after the DBS-STN implantation by 61.3% at 6 months and 55.4% at 3 years. CONCLUSION:STN-DBS allows for a reduction in the dosage of medication and the costs are similarly reduced. In this cohort different medication groups were reduced to a similar extent. Patients' demographic factors did not play a major role in the selection of treatment.

authors

Alexoudi A,Shalash A,Knudsen K,Witt K,Mehdorn M,Volkmann J,Deuschl G

doi

10.1016/j.parkreldis.2015.03.003

subject

Has Abstract

pub_date

2015-06-01 00:00:00

pages

555-60; discussion 555

issue

6

eissn

1353-8020

issn

1873-5126

pii

S1353-8020(15)00098-X

journal_volume

21

pub_type

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