Evidence map›Paper›PMID 26432577›Full record

ArticleJournal of the neurological sciences2015

Quantitative muscle ultrasound measures rapid declines over time in children with SMA type 1.

Kay W Ng, Anne M Connolly, Craig M Zaidman

Registry-linked trialAbstract read
In one paragraph

Article in Journal of the neurological sciences, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06599606 (Investigation of the Relationship Between Ultrasonographic Muscle Thickness Measurement and Echogenicity Assessment With Functional Scales in Patients With Spinal Muscular Atrophy), which is not on this map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.4field-weighted citation impact, top 19% 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.

NCT06599606 active not recruitingnot on this mapstarted 2024, after this paper: background citation

Investigation of the Relationship Between Ultrasonographic Muscle Thickness Measurement and Echogenicity Assessment With Functional Scales in Patients With Spinal Muscular Atrophy: An Observational, Cross-Sectional, Case-Control Study

TypeobservationalSponsorIstanbul University - CerrahpasaRan2024 to 2025Enrolled34ConditionsSpinal Muscular Atrophy (SMA), Neuromuscular DiseaseArmsUltrasonographic Assessment
3 · Its place in the literature

Who cites it

11 citing papers in PubMed, 26 citations in OpenAlex.

  1. Trial
  2. Review
  3. Application of Biomarkers in Spinal Muscular Atrophy.International journal of molecular sciences · 2025
    Review
  4. Article
  5. Review
  6. Article
  7. Article
  8. Review
  9. Neuromuscular Ultrasound in the Pediatric Population.Diagnostics (Basel, Switzerland) · 2020
    Review
  10. Review
  11. 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

3 authors at 1 institution in 1 country.

Kay W NgWashington University School of Medicine, Department of Neurology, St. Louis, MO 63110, United States.
Anne M ConnollyWashington University School of Medicine, Department of Neurology, St. Louis, MO 63110, United States; Washington University School of Medicine, Department of Pediatrics, St. Louis, MO 63110, United States.
Craig M ZaidmanWashington University School of Medicine, Department of Neurology, St. Louis, MO 63110, United States; Washington University School of Medicine, Department of Pediatrics, St. Louis, MO 63110, United States. Electronic address: zaidmanc@neuro.wustl.edu.
Washington University in St. Louis · US

Funding

Washington University Institute of Clinical and Translational SciencesUL1TR000448 · NCATS · WASHINGTON UNIVERSITY · PI EVANOFF, BRADLEY A · 2012 to 2016
$41.4M
NEUROLOGICAL SCIENCES ACADEMIC DEVELOPMENT AWARD(INST)K12NS001690 · NINDS · WASHINGTON UNIVERSITY · PI WONG, MICHAEL · 1993 to 2018
$5.2M
NCATS NIH HHS UL1 TR000448NINDS NIH HHS K12 NS001690NINDS NIH HHS K12 NS00169009
6 · The paper itself

Abstract

Muscles are small in spinal muscular atrophy (SMA). It is not known if muscle size changes over time in SMA type 1. We quantified changes over time in muscle size and echointensity during two repeated ultrasound examinations of unilateral proximal (biceps brachii/brachialis and quadriceps) and distal (anterior forearm flexors and tibialis anterior) muscles in three children with SMA type 1. We compared muscle thickness (MT) to body weight-dependent normal reference values. Children were 1, 6, and 11months old at baseline and had 2, 2 and 4 months between ultrasound examinations, respectively. At baseline, MT was normal for weight in all muscles except an atrophic quadriceps in the oldest child. MT decreased and echointensity increased (worsened) over time. At follow up, MT was below normal for weight in the quadriceps in all three children, in the biceps/brachioradialis in two, and in the anterior forearm in one. Tibialis anterior MT remained normal for weight in all three children. Muscle echointensity increased over time in all muscles and, on average, more than doubled in two children. In children with SMA type 1, muscle atrophies and becomes hyperechoic over time. Quantitative muscle ultrasound measures disease progression in SMA type 1 that warrants additional study in more children.

Indexed as

Disease ProgressionFemaleHumansInfantMaleMuscle, SkeletalSpinal Muscular Atrophies of ChildhoodUltrasonographyBackscatterChildrenMuscleSpinal muscular atrophyUltrasound

Identifiers

PMID26432577
PMCPMC5931216
OpenAlexW1884483086

What OpenQuestion holds

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LicenceTDM
Read underepoch 390

Registered trials

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.