Evidence map›Paper›PMID 38020603›Full record

ArticleFrontiers in neurology2023

Active contact proximity to the cerebellothalamic tract predicts initial therapeutic current requirement with DBS for ET: an application of 7T MRI.

Salman S Ikramuddin, Annemarie K Brinda, Rebecca D Butler, Meghan E Hill, Rajiv Dharnipragada, Joshua E Aman, Lauren E Schrock, Scott E Cooper, Tara Palnitkar, Rémi Patriat and 3 more

Open access · goldAbstract read
In one paragraph

Article in Frontiers in neurology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
0.2field-weighted citation impact, top 40% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed, 1 citations in OpenAlex.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

13 authors at 2 institutions in 1 country.

Salman S IkramuddinDepartment of Neurology, University of Minnesota, Minneapolis, MN, United States.
Annemarie K BrindaDepartment of Biomedical Engineering, University of Minnesota, Minneapolis, MN, United States.
Rebecca D ButlerDepartment of Biomedical Engineering, University of Minnesota, Minneapolis, MN, United States.
Meghan E HillDepartment of Neurology, University of Minnesota, Minneapolis, MN, United States.
Rajiv DharnipragadaUniversity of Minnesota Medical School, Minneapolis, MN, United States.
Joshua E AmanDepartment of Neurology, University of Minnesota, Minneapolis, MN, United States.
Lauren E SchrockDepartment of Neurology, University of Minnesota, Minneapolis, MN, United States.
Scott E CooperDepartment of Neurology, University of Minnesota, Minneapolis, MN, United States.
Tara PalnitkarCMRR, University of Minnesota, Minneapolis, MN, United States.
Rémi PatriatCMRR, University of Minnesota, Minneapolis, MN, United States.
Noam HarelCMRR, University of Minnesota, Minneapolis, MN, United States.
Jerrold L VitekDepartment of Neurology, University of Minnesota, Minneapolis, MN, United States.
Matthew D JohnsonDepartment of Biomedical Engineering, University of Minnesota, Minneapolis, MN, United States.
University of Minnesota · USUniversity of Minnesota Medical Center · US

Funding

Algorithms for programming deep brain stimulation systemsR01NS081118 · NINDS · UNIVERSITY OF MINNESOTA · PI HAREL, NOAM, JOHNSON, MATTHEW DOUGLAS · 2012 to 2023
$4.0M
Targeted Pathway Activation for PosturalInstability and Gait Disorder in Parkinson'sDiseaseR01NS124814 · NINDS · UNIVERSITY OF MINNESOTA · PI SCOTT E COOPER · 2022 to 2026
$3.7M
NINDS NIH HHS R01 NS081118NINDS NIH HHS R01 NS124814
6 · The paper itself

Abstract

Objective: To characterize how the proximity of deep brain stimulation (DBS) active contact locations relative to the cerebellothalamic tract (CTT) affect clinical outcomes in patients with essential tremor (ET). Background: DBS is an effective treatment for refractory ET. However, the role of the CTT in mediating the effect of DBS for ET is not well characterized. 7-Tesla (T) MRI-derived tractography provides a means to measure the distance between the active contact and the CTT more precisely. Methods: A retrospective review was conducted of 12 brain hemispheres in 7 patients at a single center who underwent 7T MRI prior to ventral intermediate nucleus (VIM) DBS lead placement for ET following failed medical management. 7T-derived diffusion tractography imaging was used to identify the CTT and was merged with the post-operative CT to calculate the Euclidean distance from the active contact to the CTT. We collected optimized stimulation parameters at initial programing, 1- and 2-year follow up, as well as a baseline and postoperative Fahn-Tolosa-Marin (FTM) scores. Results: The therapeutic DBS current mean (SD) across implants was 1.8 mA (1.8) at initial programming, 2.5 mA (0.6) at 1 year, and 2.9 mA (1.1) at 2-year follow up. Proximity of the clinically-optimized active contact to the CTT was 3.1 mm (1.2), which correlated with lower current requirements at the time of initial programming (R Conclusion: Active DBS contact proximity to the CTT was associated with lower therapeutic current requirement following DBS surgery for ET, but therapeutic current was increased over time. Distance to CTT did not predict the need for increased current over time, or longer term post-operative tremor control in this cohort. Further study is needed to characterize the role of the CTT in long-term DBS outcomes.

Indexed as

7-T MRIcerebellothalamic tractdeep brain stimulationdiffusion tractography imagingessential tremorstimulation amplitude

Identifiers

PMID38020603
PMCPMC10666159
OpenAlexW4388636196

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.