Evidence map›Paper›PMID 31196221›Full record

ArticleOrphanet journal of rare diseases2019

Recommendations for the management of MPS IVA: systematic evidence- and consensus-based guidance.

Mehmet Umut Akyol, Tord D Alden, Hernan Amartino, Jane Ashworth, Kumar Belani, Kenneth I Berger, Andrea Borgo, Elizabeth Braunlin, Yoshikatsu Eto, Jeffrey I Gold and 21 more

Open access · goldAbstract readConsensus Statement
In one paragraph

Article in Orphanet journal of rare diseases, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 61 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
61citing papers in PubMed, 1 pooled it
31.9field-weighted citation impact, top 1% 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

61 citing papers in PubMed, 1 synthesis or guideline pooled it, 114 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Advances in Therapies for Mucopolysaccharidoses.Current issues in molecular biology · 2026
    Review
  5. Article
  6. Natural History of Morquio A Syndrome.Journal of inherited metabolic disease · 2026
    Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Recent advances in mucopolysaccharidosis IVA treatment.Orphanet journal of rare diseases · 2025
    Review
  13. Molecular therapy. Methods & clinical development · 2025
    Article
  14. Article
  15. Prenatal Delivery of Enzyme Replacement Therapy to Fetuses Affected by Early-Onset Lysosomal Storage Diseases.American journal of medical genetics. Part C, Seminars in medical genetics · 2025
    Review
  16. Article
  17. Article
  18. Review
  19. Article
  20. Article

1 more citing papers are in PubMed but not listed here.

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

31 authors at 17 institutions in 10 countries.

Mehmet Umut AkyolDepartment of Otolaryngology, Hacettepe University, Ankara, Turkey.
Tord D AldenDepartment of Neurosurgery, Ann & Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
Hernan AmartinoChild Neurology Department, Hospital Universitario Austral, Buenos Aires, Argentina.
Jane AshworthDepartment of Paediatric Ophthalmology, Manchester Royal Eye Hospital, Manchester University NHS Foundation Trust, Manchester, UK.
Kumar BelaniDepartment of Anesthesiology, University of Minnesota, Minneapolis, MN, USA.
Kenneth I BergerDepartments of Medicine and Neuroscience and Physiology, New York University School of Medicine, André Cournand Pulmonary Physiology Laboratory, Bellevue Hospital, New York, NY, USA.
Andrea BorgoOrthopaedics Clinic, Padova University Hospital, Padova, Italy.
Elizabeth BraunlinDivision of Pediatric Cardiology, University of Minnesota, Minneapolis, MN, USA.
Yoshikatsu EtoAdvanced Clinical Research Centre, Institute of Neurological Disorders, Kanagawa, Japan and Department of Paediatrics/Gene Therapy, Tokyo Jikei University School of Medicine, Tokyo, Japan.
Jeffrey I GoldKeck School of Medicine, Departments of Anesthesiology, Pediatrics, and Psychiatry & Behavioural Sciences, Children's Hospital Los Angeles, Department of Anesthesiology Critical Care Medicine, 4650 Sunset Boulevard, Los Angeles, CA, USA.
Andrea JesterHand and Upper Limb Service, Department of Plastic Surgery, Birmingham Women's and Children's Hospital, Birmingham, UK.
Simon A JonesWillink Biochemical Genetic Unit, Manchester Centre for Genomic Medicine, St Mary's Hospital, Manchester University NHS Foundation Trust, Manchester, UK.
Cengiz KarsliDepartment of Anesthesiology and Pain Medicine, The Hospital for Sick Children, Toronto, Canada.
William MackenzieDepartment of Orthopedics, Nemours/Alfred I, Dupont Hospital for Children, Wilmington, DE, USA.
Diane Ruschel MarinhoDepartment of Ophthalmology, UFRGS, and Ophthalmology Service, HCPA, Porto Alegre, Brazil.
Andrew McFadyenThe Isaac Foundation, Campbellford, Ontario, Canada.
Jim McGillDepartment of Metabolic Medicine, Queensland Children's Hospital, Brisbane, Australia.
John J MitchellDivision of Pediatric Endocrinology, Montreal Children's Hospital, Montreal, QC, Canada.
Joseph MuenzerDepartment of Pediatrics, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
Torayuki OkuyamaDepartment of Clinical Laboratory Medicine, National Centre for Child Health and Development, Tokyo, Japan.
Paul J OrchardDivision of Blood and Marrow Transplantation, Department of Pediatrics, University of Minnesota, Minneapolis, MN, USA.
Bob StevensMPS Society, Amersham, Buckinghamshire, UK.
Sophie ThomasMPS Society, Amersham, Buckinghamshire, UK.
Robert WalkerDepartment of Paediatric Anaesthesia, Royal Manchester Children's Hospital, Manchester, UK.
Robert WynnDepartment of Paediatric Haematology, Royal Manchester Children's Hospital, Manchester, UK.
Roberto GiuglianiDepartment of Genetics, UFRGS, and Medical Genetics Service, HCPA, Porto Alegre, Brazil.
Paul HarmatzUCSF Benioff Children's Hospital Oakland, Oakland, CA, USA.
Christian HendrikszSteve Biko Academic Hospital, University of Pretoria, Pretoria, South Africa. chris@fymcamedical.co.uk.ORCID 0000-0003-2179-3639
Maurizio ScarpaCenter for Rare Diseases at Host Schmidt Kliniken, Wiesbaden, Germany and Department of Paediatrics University of Padova, Padova, Italy.
MPS Consensus Programme Steering Committee
MPS Consensus Programme Co-Chairs
University of Minnesota · USUniversidade Federal do Rio Grande do Sul · BRAmersham Hospital · GBJikei University School of Medicine · JPNorthwestern University · USSteve Biko Hospital · ZAUniversity of North Carolina at Chapel Hill · USAlfred I. duPont Hospital for Children · USChildren's Health Queensland Hospital and Health Service · AUChildren's Hospital of Los Angeles · USHacettepe University · TRHospital for Sick Children · CAManchester Royal Eye Hospital · GBMontreal Children's Hospital · CARoyal Manchester Children's Hospital · GBSt Mary's Hospital · GBUniversity of Padua · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionMucopolysaccharidosis (MPS) IVA or Morquio A syndrome is an autosomal recessive lysosomal storage disorder (LSD) caused by deficiency of the N-acetylgalactosamine-6-sulfatase (GALNS) enzyme, which impairs lysosomal degradation of keratan sulphate and chondroitin-6-sulphate. The multiple clinical manifestations of MPS IVA present numerous challenges for management and necessitate the need for individualised treatment. Although treatment guidelines are available, the methodology used to develop this guidance has come under increased scrutiny. This programme was conducted to provide evidence-based, expert-agreed recommendations to optimise management of MPS IVA.

methodsTwenty six international healthcare professionals across multiple disciplines, with expertise in managing MPS IVA, and three patient advocates formed the Steering Committee (SC) and contributed to the development of this guidance. Representatives from six Patient Advocacy Groups (PAGs) were interviewed to gain insights on patient perspectives. A modified-Delphi methodology was used to demonstrate consensus among a wider group of healthcare professionals with experience managing patients with MPS IVA and the manuscript was evaluated against the validated Appraisal of Guidelines for Research and Evaluation (AGREE II) instrument by three independent reviewers.

resultsA total of 87 guidance statements were developed covering five domains: (1) general management principles; (2) recommended routine monitoring and assessments; (3) disease-modifying interventions (enzyme replacement therapy [ERT] and haematopoietic stem cell transplantation [HSCT]); (4) interventions to support respiratory and sleep disorders; (5) anaesthetics and surgical interventions (including spinal, limb, ophthalmic, cardio-thoracic and ear-nose-throat [ENT] surgeries). Consensus was reached on all statements after two rounds of voting. The overall guideline AGREE II assessment score obtained for the development of the guidance was 5.3/7 (where 1 represents the lowest quality and 7 represents the highest quality of guidance).

conclusionThis manuscript provides evidence- and consensus-based recommendations for the management of patients with MPS IVA and is for use by healthcare professionals that manage the holistic care of patients with the intention to improve clinical- and patient-reported outcomes and enhance patient quality of life. It is recognised that the guidance provided represents a point in time and further research is required to address current knowledge and evidence gaps.

Indexed as

ChondroitinsulfatasesEnzyme Replacement TherapyFemaleHumansHypercapniaMaleMucopolysaccharidosis IVChondroitinsulfatasesGALNS protein, humanAnaestheticsElosulfase alfaEnzyme replacement therapyERTHaematopoietic stem cell transplantationHSCTManagement guidelinesMorquio a syndromeMPS IVAMucopolysaccharidosisSurgeryVIMIZIM

Identifiers

PMID31196221
PMCPMC6567385
OpenAlexW2947808138

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.