Evidence map›Paper›PMID 34449699›Full record

ArticleNeurology international2021

Surgical Management for Dystonia: Efficacy of Deep Brain Stimulation in the Long Term.

Walaa A Kamel, Pritam Majumdar, Georgios Matis, Albert J Fenoy, Shankar Balakrishnan, Ali T Zirh, Aslihan Cevik, Amit Kumar Tomar, Naoufel Ouerchefani

Abstract read
In one paragraph

Article in Neurology international, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–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

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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

2 citing papers in PubMed.

  1. Article
  2. Observational
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.

Walaa A KamelNeurology Department, Faculty of Medicine, Beni-Suef University, Beni-Suef 62511, Egypt.ORCID 0000-0002-3363-0370
Pritam MajumdarDepartment of Stereotactic and Functional Neurosurgery, University Cologne Hospital, 50931 Cologne, Germany.
Georgios MatisDepartment of Stereotactic and Functional Neurosurgery, University Cologne Hospital, 50931 Cologne, Germany.ORCID 0000-0002-1046-2829
Albert J FenoyDepartment of Neurosurgery, McGovern Medical School, The University of Texas at Houston, UTHealth Neurosciences, Houston, TX 77030, USA.
Shankar BalakrishnanDepartment of Neurology and Neuromodulation, MIOT International Hospital, Hennai 600089, India.
Ali T ZirhDepartment of Neurosurgery, Istanbul Medipol University, Istanbul 34810, Turkey.
Aslihan CevikDepartment of Neurosurgery, Istanbul Aydin University, Istanbul Medical Park Florya, Istanbul 34295, Turkey.
Amit Kumar TomarDepartment of Anesthesia and Neurosurgery, Indo-Gulf Hospital, Noida 201301, India.
Naoufel OuerchefaniDepartment of Neurosurgery, Foch Hospital, 92150 Paris, France.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionDystonia is a movement disorder substantially affecting the quality of life. Botulinum Neurotoxin (BoNT) is used intramuscularly as a treatment for dystonia; however, not all dystonia patients respond to this treatment. Deep brain stimulation (DBS) is an established treatment for Parkinson's disease (PD) and essential tremor, but it can help in dystonia as well.

objectivesWe studied a total of 67 dystonia patients who were treated with DBS over a period of 7 years to find out the long-term efficacy of DBS in those patients. First, we calculated patient improvement in post-surgery follow-up programs using the Global Dystonia Severity scale (GDS) and Burke-Fahn-Marsden dystonia rating scale (BFMDRS). Secondly, we analyzed the scales scores to see if there was any statistical significance.

methodsIn our study we analyzed patients with ages from 38 to 78 years with dystonia who underwent DBS surgery between January 2014 and December 2020 in four different centers (India, Kuwait, Egypt, and Turkey). The motor response to DBS surgery was retrospectively measured for each patient during every follow-up visit using the GDS and the BFMDRS scales.

resultsFive to 7 years post-DBS, the mean reduction in the GDS score was 30 ± 1.0 and for the BFMDRS score 26 ± 1.0. The longitudinal change in scores at 12 and 24 months post-op was also significant with mean reductions in GDS and BFMDRS scores of 68 ± 1.0 and 56 ± 1.0, respectively. The

conclusionsThis study illustrates DBS is an established, effective treatment option for patients with different dystonias, such as generalized, cervical, and various brain pathology-induced dystonias. Although symptoms are not completely eliminated, continuous improvements are noticed throughout the post-stimulation time frame.

Indexed as

Burke–Fahn–Marsden dystonia rating scale (BFMDRS)deep brain stimulation (DBS)Global Dystonia Severity scale (GDS)globus pallidus interna (GPi)subthalamic nucleus (STN)

Identifiers

PMID34449699
PMCPMC8395937

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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.