Evidence map›Paper›PMID 35527561›Full record

SynthesisJournal of neuromuscular diseases2022

Progression to Loss of Ambulation Among Patients with Autosomal Recessive Limb-girdle Muscular Dystrophy: A Systematic Review.

Ivana F Audhya, Antoinette Cheung, Shelagh M Szabo, Emma Flint, Conrad C Weihl, Katherine L Gooch

Open access · hybridAbstract readSystematic Review
In one paragraph

Synthesis in Journal of neuromuscular diseases, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.2field-weighted citation impact, top 22% 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

10 citing papers in PubMed, 15 citations in OpenAlex.

  1. Article
  2. Predicting Loss of Ambulation in Limb Girdle Muscular Dystrophy R9.Annals of clinical and translational neurology · 2026
    Observational
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Mild limb girdle muscular dystrophy R9 phenotype caused by novel compound heterozygous FKRP gene mutation.Acta myologica : myopathies and cardiomyopathies : official journal of the Mediterranean Society of Myology · 2023
    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

6 authors at 2 institutions in 1 country.

Ivana F AudhyaSarepta Therapeutics Inc, Cambridge MA, USA.
Antoinette CheungBroadstreet HEOR, Vancouver, BC, V6A 1A4 Canada.
Shelagh M SzaboBroadstreet HEOR, Vancouver, BC, V6A 1A4 Canada.
Emma FlintBroadstreet HEOR, Vancouver, BC, V6A 1A4 Canada.
Conrad C WeihlWashington University School of Medicine, St. Louis, MO, USA.
Katherine L GoochSarepta Therapeutics Inc, Cambridge MA, USA.
Sarepta Therapeutics (United States) · USWashington University in St. Louis · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BackgroundThe impact of age at autosomal recessive limb girdle muscular dystrophy (LGMDR) onset on progression to loss of ambulation (LOA) has not been well established, particularly by subtype.

objectivesTo describe the characteristics of patients with adult-, late childhood-, and early childhood-onset LGMDR by subtype and characterize the frequency and timing of LOA.

methodsA systematic review was conducted in MEDLINE, Embase and the Cochrane library. Frequency and timing of LOA in patients with LGMDR1, LGMDR2/Miyoshi myopathy (MM), LGMDR3-6, LGMDR9, and LGMDR12 were synthesized from published data.

resultsIn 195 studies, 695 (43.4%) patients had adult-, 532 (33.2%) had late childhood-, and 376 (23.5%) had early childhood-onset of disease across subtypes among those with a reported age at onset (n = 1,603); distribution of age at onset varied between subtypes. Among patients with LOA (n = 228), adult-onset disease was uncommon in LGMDR3-6 (14%) and frequent in LGMDR2/MM (42%); LGMDR3-6 cases with LOA primarily had early childhood-onset (74%). Mean (standard deviation [SD]) time to LOA varied between subtypes and was shortest for patients with early childhood-onset LGMDR9 (12.0 [4.9] years, n = 19) and LGMDR3-6 (12.3 [10.7], n = 56) and longest for those with late childhood-onset LGMDR2/MM (21.4 [11.5], n = 36).

conclusionsThis review illustrated that patients with early childhood-onset disease tend to have faster progression to LOA than those with late childhood- or adult-onset disease, particularly in LGMDR9. These findings provide a greater understanding of progression to LOA by LGMDR subtype, which may help inform clinical trial design and provide a basis for natural history studies.

Indexed as

Muscular Dystrophies, Limb-GirdleAdultChildChild, PreschoolDistal MyopathiesHumansMuscular AtrophyWalkingage of onsetdisease progressionlimb-girdleMuscular dystrophiessystematic reviewwalking

Identifiers

PMID35527561
PMCPMC9398075
OpenAlexW4229040311

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.