Evidence map›Paper›PMID 39452005›Full record

ArticleBrain sciences2024

Acute Levodopa Challenge in Atypical Parkinsonism: Comprehensive Analysis of Individual Motor Responses.

Lan Ye, Sam Sadeghi Sani, Linda Veith Sanches, Lea Farina Magdalena Krey, Florian Wegner, Matthias Höllerhage, Christoph Schrader, Günter Höglinger, Martin Klietz

Abstract read
In one paragraph

Article in Brain sciences, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

5 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Tremor in multiple system atrophy: a systematic literature review.Journal of neural transmission (Vienna, Austria : 1996) · 2026
    Pooled it
  2. Article
  3. Article
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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

9 authors.

Lan YeDepartment of Neurology, Hannover Medical School, 30625 Hannover, Germany.ORCID 0000-0002-3508-7359
Sam Sadeghi SaniDepartment of Neurology, Hannover Medical School, 30625 Hannover, Germany.
Linda Veith SanchesDepartment of Neurology, Hannover Medical School, 30625 Hannover, Germany.
Lea Farina Magdalena KreyDepartment of Neurology, Hannover Medical School, 30625 Hannover, Germany.ORCID 0009-0000-4768-0259
Florian WegnerDepartment of Neurology, Hannover Medical School, 30625 Hannover, Germany.
Matthias HöllerhageDepartment of Neurology, Hannover Medical School, 30625 Hannover, Germany.
Christoph SchraderDepartment of Neurology, Hannover Medical School, 30625 Hannover, Germany.ORCID 0000-0001-5323-8299
Günter HöglingerDepartment of Neurology, Hannover Medical School, 30625 Hannover, Germany.
Martin KlietzDepartment of Neurology, Hannover Medical School, 30625 Hannover, Germany.ORCID 0000-0002-3054-9905

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The acute levodopa challenge is widely used to distinguish Parkinson's disease (PD) from atypical parkinsonian syndromes (APSs) such as multiple system atrophy (MSA) and progressive supranuclear palsy (PSP). In APSs, very few patients present a clinically relevant response to levodopa. The aim of this study was to determine whether patients with atypical parkinsonism benefit from levodopa in any aspect of their multiple motor deficits despite the generally poor response. This retrospective study analyzed individual motor responses to the acute levodopa challenge using the MDS-UPDRS III in 47 PSP, 26 MSA, and 71 PD patients at Hannover Medical School. Despite the generally poor levodopa response in both PSP and MSA patients, bradykinesia and rigidity were the symptoms most notably affected by levodopa in PSP patients, while MSA patients experienced significant improvements in bradykinesia and action tremor. These findings underscore the variability in levodopa response among PSP and MSA patients and highlight the need for personalized treatment approaches in atypical parkinsonism.

Indexed as

acute levodopa challengemultiple system atrophyprogressive supranuclear palsytreatment

Identifiers

PMID39452005
PMCPMC11506334

What OpenQuestion holds

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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.