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@ARTICLE{Steffen:874450,
author = {Steffen, Julia K. and Reker, Paul and Mennicken, Fiona K.
and Dembek, Till A. and Dafsari, Haidar S. and Fink, Gereon
R. and Visser‐Vandewalle, Veerle and Barbe, Michael T.},
title = {{B}ipolar {D}irectional {D}eep {B}rain {S}timulation in
{E}ssential and {P}arkinsonian {T}remor},
journal = {Neuromodulation},
volume = {23},
number = {4},
issn = {1525-1403},
address = {Oxford [u.a.]},
publisher = {Wiley-Blackwell},
reportid = {FZJ-2020-01451},
pages = {543-549},
year = {2020},
abstract = {ObjectiveTo compare directional monopolar, bipolar, and
directional bipolar thalamic deep brain stimulation (DBS) in
tremor patients.MethodsFourteen tremor patients (7 Essential
Tremor and 7 Parkinson's Disease) implanted with directional
DBS electrodes in the ventral intermediate nucleus (VIM)
were enrolled. Side‐effect thresholds of monopolar
directional stimulation (DIRECT) were compared to circular
DBS as well as, in a randomized design, to those of two
different bipolar stimulation settings (BIPOLAR = circular
anode; BI‐DIRECT = directional anode). Tremor suppression
(Tremor Rating Scale, TRS) right below the side‐effect
threshold was also assessed.ResultsDirectional DBS in the
individually best direction showed higher side‐effect
thresholds than circular DBS (p = 0.0063). The thresholds
were raised further using either one of the bipolar
stimulation paradigms (BIPOLAR p = 0.0029, BI‐DIRECT p
= 0.0022). The side‐effect thresholds did not differ
between both bipolar settings, but side‐effects were less
frequent with BI‐DIRECT. No difference in TRS scores with
stimulation just below the side‐effect threshold was found
between all stimulation conditions.ConclusionsSide‐effect
thresholds of monopolar directional and bipolar stimulation
with both circular and directional anodes were higher
compared to traditional monopolar circular stimulation in
the VIM. Bipolar DBS with directional anodes evoked
side‐effect less frequently than bipolar and monopolar
directional stimulation. All stimulation settings had
comparable effects on tremor suppression just below their
side‐effect thresholds. Thus, directional and different
bipolar settings should be explored in patients with
bothersome side‐effects of thalamic stimulation when
monopolar stimulation settings are not satisfying. Further
studies are needed to explore the efficiency of the
different bipolar stimulation paradigms.},
cin = {INM-3},
ddc = {610},
cid = {I:(DE-Juel1)INM-3-20090406},
pnm = {572 - (Dys-)function and Plasticity (POF3-572)},
pid = {G:(DE-HGF)POF3-572},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:32040883},
UT = {WOS:000540114400017},
doi = {10.1111/ner.13109},
url = {https://juser.fz-juelich.de/record/874450},
}