Evidence map›Paper›PMID 33691664›Full record

Observational studyBMC musculoskeletal disorders2021

Longitudinal study of MRI and functional outcome measures in facioscapulohumeral muscular dystrophy.

Leo H Wang, Dennis W W Shaw, Anna Faino, Christopher B Budech, Leann M Lewis, Jeffrey Statland, Katy Eichinger, Stephen J Tapscott, Rabi N Tawil, Seth D Friedman

Open access · goldAbstract readObservational Study
In one paragraph

Observational study in BMC musculoskeletal disorders, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
2.7field-weighted citation impact, top 9% 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

25 citing papers in PubMed, 43 citations in OpenAlex.

  1. Trial
  2. Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Observational
  14. Article
  15. Article
  16. Comparison of quantitative muscle ultrasound and whole-body muscle MRI in facioscapulohumeral muscular dystrophy type 1 patients.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2023
    Article
  17. Article
  18. Article
  19. Article
  20. 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

10 authors at 4 institutions in 1 country.

Leo H WangDepartment of Neurology, University of Washington, Seattle, Washington, USA. leowang@uw.edu.ORCID http://orcid.org/0000-0002-5079-1416
Dennis W W ShawDepartment of Radiology, University of Washington, Seattle, Washington, USA.
Anna FainoChildren's Core for Biomedical Statistics, Seattle Children's Research Institute, Seattle, Washington, USA.
Christopher B BudechDepartment of Radiology, University of Washington, Seattle, Washington, USA.
Leann M LewisDepartment of Neurology, University of Rochester, Rochester, New York, USA.
Jeffrey StatlandDepartment of Neurology, Kansas University Medical Center, Fairway, KS, USA.
Katy EichingerDepartment of Neurology, University of Rochester, Rochester, New York, USA.
Stephen J TapscottHuman Biology Division, Fred Hutchinson Research Center, Seattle, Washington, USA.
Rabi N TawilDepartment of Neurology, University of Rochester, Rochester, New York, USA.
Seth D FriedmanDepartment of Radiology, University of Washington, Seattle, Washington, USA.
University of Washington · USUniversity of Rochester · USFred Hutch Cancer Center · USUniversity Medical Center · US

Funding

Wellstone Muscular Dystrophy Specialized Research Center (Seattle)P50AR065139 · NIAMS · UNIVERSITY OF WASHINGTON · PI JEFFREY S CHAMBERLAIN · 2018 to 2026
$15.9M
NIAMS NIH HHS 2P50AR065139-05NIAMS NIH HHS P50 AR065139
6 · The paper itself

Abstract

backgroundFacioscapulohumeral muscular dystrophy (FSHD) is a patchy and slowly progressive disease of skeletal muscle. For MRI to be a useful biomarker in an FSHD clinical trial, it should reliably detect changes over relatively short time-intervals (~ 1 year). We hypothesized that fatty change over the study course would be most likely in muscles already demonstrating disease progression, and that the degree of MRI burden would be correlated with function.

methodsWe studied 36 patients with FSHD and lower-extremity weakness at baseline. Thirty-two patients returned in our 12-month longitudinal observational study. We analyzed DIXON MRI images of 16 lower-extremity muscles in each patient and compared them to quantitative strength measurement and ambulatory functional outcome measures.

resultsThere was a small shift to higher fat fractions in the summed muscle data for each patient, however individual muscles demonstrated much larger magnitudes of change. The greatest increase in fat fraction was observed in muscles having an intermediate fat replacement at baseline, with minimally (baseline fat fraction < 0.10) or severely (> 0.70) affected muscles less likely to progress. Functional outcome measures did not demonstrate marked change over the interval; however, overall MRI disease burden was correlated with functional outcome measures. Direct comparison of the tibialis anterior (TA) fat fraction and quantitative strength measurement showed a sigmoidal relationship, with steepest drop being when the muscle gets more than ~ 20% fatty replaced.

conclusionsAssessing MRI changes in 16 lower-extremity muscles across 1 year demonstrated that those muscles having an intermediate baseline fat fraction were more likely to progress. Ambulatory functional outcome measures are generally related to overall muscle MRI burden but remain unchanged in the short term. Quantitative strength measurement of the TA showed a steep loss of strength when more fatty infiltration is present suggesting that MRI may be preferable for following incremental change or modulation with drug therapy.

Indexed as

Muscular Dystrophy, FacioscapulohumeralHumansLongitudinal StudiesMagnetic Resonance ImagingMuscle, SkeletalOutcome Assessment, Health CareAll neuromuscular diseaseFacioscapulohumeral muscular dystrophy (FSHD)MRIMuscle diseaseOutcome measures

Identifiers

PMID33691664
PMCPMC7948347
OpenAlexW3135849156

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.