Evidence map›Paper›PMID 34335876›Full record

ArticleTherapeutic advances in neurological disorders2021

Diagnosing small fiber neuropathy in clinical practice: a deep phenotyping study.

Nadine Egenolf, Caren Meyer Zu Altenschildesche, Luisa Kreß, Katja Eggermann, Barbara Namer, Franziska Gross, Alexander Klitsch, Tobias Malzacher, Daniel Kampik, Rayaz A Malik and 3 more

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in Therapeutic advances in neurological disorders, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 40 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed, 2 pooled it
6.0field-weighted citation impact, top 3% 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

40 citing papers in PubMed, 2 syntheses or guidelines pooled it, 67 citations in OpenAlex.

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  18. Current Perspectives in Pre- and Diabetic Peripheral Neuropathy Diagnosis and Management: An Expert Statement for the Gulf Region.Diabetes therapy : research, treatment and education of diabetes and related disorders · 2024
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

13 authors at 4 institutions in 2 countries.

Nadine EgenolfDepartment of Neurology, University of Würzburg, Germany.
Caren Meyer Zu AltenschildescheDepartment of Neurology, University of Würzburg, Germany.
Luisa KreßDepartment of Neurology, University of Würzburg, Germany.
Katja EggermannInstitute of Human Genetics, Medical Faculty, RWTH Aachen University, Aachen, Nordrhein-Westfalen, Germany.
Barbara NamerInstitute of Physiology, University of Erlangen, Bayern, Germany.
Franziska GrossDepartment of Neurology, University of Würzburg, Germany.
Alexander KlitschDepartment of Neurology, University of Würzburg, Germany.
Tobias MalzacherDepartment of Neurology, University of Würzburg, Germany.
Daniel KampikDepartment of Ophthalmology, University of Würzburg, Bayern, Germany.
Rayaz A MalikWeill Cornell Medicine-Qatar, Qatar Foundation, Education City, Doha, Qatar.
Ingo KurthInstitute of Human Genetics, Medical Faculty, RWTH Aachen University, Aachen, Nordrhein-Westfalen, Germany.
Claudia SommerDepartment of Neurology, University of Würzburg, Germany.
Nurcan ÜçeylerDepartment of Neurology, University of Würzburg, Josef-Schneider-Str. 11, Würzburg, 97080, Germany.ORCID https://orcid.org/0000-0001-6973-6428
University of Würzburg · DERWTH Aachen University · DEBayer (Germany) · DEWeill Cornell Medical College in Qatar · QA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

aimsSmall fiber neuropathy (SFN) is increasingly suspected in patients with pain of uncertain origin, and making the diagnosis remains a challenge lacking a diagnostic gold standard.

methodsIn this case-control study, we prospectively recruited 86 patients with a medical history and clinical phenotype suggestive of SFN. Patients underwent neurological examination, quantitative sensory testing (QST), and distal and proximal skin punch biopsy, and were tested for pain-associated gene loci. Fifty-five of these patients additionally underwent pain-related evoked potentials (PREP), corneal confocal microscopy (CCM), and a quantitative sudomotor axon reflex test (QSART).

resultsAbnormal distal intraepidermal nerve fiber density (IENFD) (60/86, 70%) and neurological examination (53/86, 62%) most frequently reflected small fiber disease. Adding CCM and/or PREP further increased the number of patients with small fiber impairment to 47/55 (85%). Genetic testing revealed potentially pathogenic gene variants in 14/86 (16%) index patients. QST, QSART, and proximal IENFD were of lower impact.

conclusionWe propose to diagnose SFN primarily based on the results of neurological examination and distal IENFD, with more detailed phenotyping in specialized centers.

Indexed as

algorithmdiagnosisneurological examinationskin punch biopsysmall fiber neuropathy

Identifiers

PMID34335876
PMCPMC8283814
OpenAlexW3138292339

What OpenQuestion holds

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LicenceCC BY-NC
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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.