Evidence map›Paper›PMID 32927819›Full record

SynthesisInternational journal of environmental research and public health2020

The Value of Case Reports in Systematic Reviews from Rare Diseases. The Example of Enzyme Replacement Therapy (ERT) in Patients with Mucopolysaccharidosis Type II (MPS-II).

Miguel Sampayo-Cordero, Bernat Miguel-Huguet, Andrea Malfettone, José Manuel Pérez-García, Antonio Llombart-Cussac, Javier Cortés, Almudena Pardo, Jordi Pérez-López

Open access · goldAbstract readSystematic Review
In one paragraph

Synthesis in International journal of environmental research and public health, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 8 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 8 pooled it
2.0field-weighted citation impact, top 13% 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

23 citing papers in PubMed, 8 syntheses or guidelines pooled it, 27 citations in OpenAlex.

  1. Hepatic superscan on [Abdominal radiology (New York) · 2026
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  7. Simultaneous ipsilateral floating hip and knee: the double floating extremity-a systematic review and proposal of a treatment algorithm.European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2023
    Pooled it
  8. Sirolimus treatment for paediatric head and neck lymphatic malformations: a systematic review.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2023
    Pooled it
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  16. THE VALUE OF N-OF-1 DATA IN ZOOLOGICAL MEDICINE: A METHODOLOGICAL REVIEW.Journal of zoo and wildlife medicine : official publication of the American Association of Zoo Veterinarians · 2023
    Review
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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

8 authors at 4 institutions in 1 country.

Miguel Sampayo-CorderoMedica Scientia Innovation Research (MedSIR), Ridgewood, NJ 07450, USA.
Bernat Miguel-HuguetDepartment of Surgery, Hospital de Bellvitge, L'Hospitalet de Llobregat, 08907 Barcelona, Spain.
Andrea MalfettoneMedica Scientia Innovation Research (MedSIR), Ridgewood, NJ 07450, USA.
José Manuel Pérez-GarcíaMedica Scientia Innovation Research (MedSIR), Ridgewood, NJ 07450, USA.
Antonio Llombart-CussacMedica Scientia Innovation Research (MedSIR), Ridgewood, NJ 07450, USA.
Javier CortésMedica Scientia Innovation Research (MedSIR), Ridgewood, NJ 07450, USA.
Almudena PardoAlbiotech Consultores y Redacción Científica S.L., 28035 Madrid, Spain.
Jordi Pérez-LópezDepartment of Internal Medicine, Hospital Vall d'Hebron, 08035 Barcelona, Spain.
MedSIR (Spain) · ESBellvitge University Hospital · ESVall d'Hebron Hospital Universitari · ESVall d'Hebron Institute of Oncology

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCase reports are usually excluded from systematic reviews. Patients with rare diseases are more dependent on novel individualized strategies than patients with common diseases. We reviewed and summarized the novelties reported by case reports in mucopolysaccharidosis type II (MPS-II) patients treated with enzyme replacement therapy (ERT).

methodsWe selected the case reports included in a previous meta-analysis of patients with MPS-II treated with ERT. Later clinical studies evaluating the same topic of those case reports were reported. Our primary aim was to summarize novelties reported in previous case reports. Secondary objectives analyzed the number of novelties evaluated in subsequent clinical studies and the time elapsed between the publication of the case report to the publication of the clinical study.

resultsWe identified 11 innovative proposals in case reports that had not been previously considered in clinical studies. Only two (18.2%) were analyzed in subsequent nonrandomized cohort studies. The other nine novelties (81.8%) were analyzed in later case reports (five) or were not included in ulterior studies (four) after more than five years from their first publication.

conclusionsCase reports should be included in systematic reviews of rare disease to obtain a comprehensive summary of the state of research and offer valuable information for healthcare practitioners.

Indexed as

Enzyme Replacement TherapyGoalsHumansMucopolysaccharidosis IIRare Diseasescase reportclinical studiesenzyme replacement therapymeta-analysismucopolysaccharidosisnonrandomized studyrandomized clinical trialrare diseasesystematic review

Identifiers

PMID32927819
PMCPMC7558586
OpenAlexW3084102257

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.