Evidence map›Paper›PMID 37545257›Full record

ArticleJournal of neuromuscular diseases2023

Nerve Conduction Differences in a Large Clinical Population: The Role of Age and Sex.

Shahar Shelly, Roni Ramon-Gonen, Pritikanta Paul, Christopher J Klein, Eyal Klang, Nisim Rahman, Vera Nikitin, Merav Ben David, Amir Dori

Open access · bronzeAbstract read
In one paragraph

Article in Journal of neuromuscular diseases, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
3.9field-weighted citation impact, top 6% 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

12 citing papers in PubMed, 17 citations in OpenAlex.

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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

9 authors at 5 institutions in 2 countries.

Shahar ShellyDepartment of Neurology, Rambam Medical Center, Haifa, Israel.
Roni Ramon-GonenThe Graduate School of Business Administration, Bar-Ilan University, Ramat-Gan, Israel.
Pritikanta PaulDepartment of Neurology and Rehabilitation, University of Illinois at Chicago, Chicago, IL, USA.
Christopher J KleinDepartment of Neurology, Mayo Clinic, Rochester, MN, USA.
Eyal KlangDepartment of diagnostic imaging, Sheba Medical Center, Sackler Faculty Institute, Tel Aviv, Israel.
Nisim RahmanThe Sami Sagol AI Hub, ARC Innovation Center, Sheba Medical Center, Tel Hashomer, Israel.
Vera NikitinSackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
Merav Ben DavidSackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
Amir DoriSackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
Tel Aviv University · ILSheba Medical Center · ILBar-Ilan University · ILUniversity of Illinois Chicago · USWinnMed · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe normal limits of nerve conduction studies are commonly determined by testing healthy subjects. However, in comprehensive real-life nerve conduction electrodiagnostic (EDX) evaluations, multiple nerves are tested, including normal nerves, for purposes of comparison with abnormal ones.

objectiveThis study aims to evaluate the average values of normal nerve conduction studies in a large population and examined the influence of age and sex.

methodsEDX parameters were extracted from an electronic database of studies performed from May 2016 to February 2022. Established normal values were used to determine the classification of a nerve study as normal.

resultsWe identified 10,648 EDX reports with 5077 normally interpreted nerve conduction studies (47.6%) of which 57% (n = 2890) were for females. The median age of studies with no abnormalities was 45.1 years (range < 1 to 92) overall and 42.5 years (range: 0.16 -89.5 years) for males and 47.5 years (range:<1 -91.7) for females. Correlations between age and amplitude, latency, and velocity (p < 0.001) were observed in most nerves. Amplitude correlated negatively with age in adults in all nerves with a mean of -0.44 (range: -0.24 to -0.62). However, in the pediatric population (age < 18 years), amplitude as well as velocity increased significantly with age. In the adult cohort, sex differences were noted, where females had higher mean sensory nerve action potentials in ulnar, median, and radial evaluations (p < 0.001). In older patients (aged > 70 years) with normally interpreted EDX studies (845 records of 528 patients), sural responses were present in 97%.

conclusionsThis real-life study confirms that advanced aging is associated with decreased nerve conduction amplitudes, increased latency, and the slowing of conduction velocity. The findings also indicate higher sensory amplitudes and conduction velocities in females. Sural nerve responses were identified in most adults over age 70.

Indexed as

AgingNeural ConductionAdolescentAdultAgedAged, 80 and overChildChild, PreschoolFemaleHumansInfantMaleMiddle AgedNerve Conduction StudiesReference ValuesSural Nervenerve conduction testspersonalized medicinereference rangesSex differencesstandards

Identifiers

PMID37545257
PMCPMC10578272
OpenAlexW4385575328

What OpenQuestion holds

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LicenceCC BY-NC
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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.