Evidence map›Paper›PMID 31395076›Full record

ArticleOrphanet journal of rare diseases2019

An algorithm as a diagnostic tool for central ocular motor disorders, also to diagnose rare disorders.

Ludwig Kraus, Olympia Kremmyda, Tatiana Bremova-Ertl, Sebastià Barceló, Katharina Feil, Michael Strupp

Open access · goldAbstract read
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 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.3field-weighted citation impact, top 40% 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

2 citing papers in PubMed, 4 citations in OpenAlex.

  1. Article
  2. Review
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 3 institutions in 3 countries.

Ludwig KrausDepartment of Neurology and German Center for Vertigo and Balance Disorders, Ludwig-Maximilians University, Munich, Campus Grosshadern, Marchioninistr. 15, 81377, Munich, Germany. Ludwig-kraus@gmx.de.ORCID 0000-0003-0707-7812
Olympia KremmydaDepartment of Neurology and German Center for Vertigo and Balance Disorders, Ludwig-Maximilians University, Munich, Campus Grosshadern, Marchioninistr. 15, 81377, Munich, Germany.
Tatiana Bremova-ErtlDepartment of Neurology and German Center for Vertigo and Balance Disorders, Ludwig-Maximilians University, Munich, Campus Grosshadern, Marchioninistr. 15, 81377, Munich, Germany.
Sebastià BarcelóSyntax for Science, Parc Bit, Edif. Disset A2, 07121, Palma de Mallorca, Spain.
Katharina FeilDepartment of Neurology and German Center for Vertigo and Balance Disorders, Ludwig-Maximilians University, Munich, Campus Grosshadern, Marchioninistr. 15, 81377, Munich, Germany.
Michael StruppDepartment of Neurology and German Center for Vertigo and Balance Disorders, Ludwig-Maximilians University, Munich, Campus Grosshadern, Marchioninistr. 15, 81377, Munich, Germany.
Ludwig-Maximilians-Universität München · DEBalearic Islands Coastal Observing and Forecasting System · ESUniversity Hospital of Bern · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRecently an increasing number of digital tools to aid clinical work have been published. This study's aim was to create an algorithm which can assist physicians as a "digital expert" with the differential diagnosis of central ocular motor disorders, in particular in rare diseases.

resultsThe algorithm's input consists of a maximum of 60 neurological and oculomotor signs and symptoms. The output is a list of the most probable diagnoses out of 14 alternatives and the most likely topographical anatomical localizations out of eight alternatives. Positive points are given for disease-associated symptoms, negative points for symptoms unlikely to occur with a disease. The accuracy of the algorithm was evaluated using the two diagnoses and two brain zones with the highest scores. In a first step, a dataset of 102 patients (56 males, 48.0 ± 22 yrs) with various central ocular motor disorders and underlying diseases, with a particular focus on rare diseases, was used as the basis for developing the algorithm iteratively. In a second step, the algorithm was validated with a dataset of 104 patients (59 males, 46.0 ± 23 yrs). For 12/14 diseases, the algorithm showed a sensitivity of between 80 and 100% and the specificity of 9/14 diseases was between 82 and 95% (e.g., 100% sensitivity and 75.5% specificity for Niemann Pick type C, and 80% specificity and 91.5% sensitivity for Gaucher's disease). In terms of a topographic anatomical diagnosis, the sensitivity was between 77 and 100% for 4/8 brain zones, and the specificity of 5/8 zones ranged between 79 and 99%.

conclusionThis algorithm using our knowledge of the functional anatomy of the ocular motor system and possible underlying diseases is a useful tool, in particular for the diagnosis of rare diseases associated with typical central ocular motor disorders, which are often overlooked.

Indexed as

AlgorithmsAdultAgedFemaleHumansMaleMiddle AgedMotor DisordersNiemann-Pick DiseasesRare DiseasesYoung AdultAlgorithmAtaxia teleangiectasiaAtaxia with oculomotor apraxiaGaucher’s disease type 3Niemann pick type COcular motor disorderProgressive supranuclear palsyWernicke encephalopathy

Identifiers

PMID31395076
PMCPMC6688379
OpenAlexW2967082186

What OpenQuestion holds

Textmetadata
LicenceCC BY
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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.