Evidence map›Paper›PMID 38598105›Full record

ArticleJA clinical reports2024

Unilateral abnormality of initial motor-evoked potential in the upper limb detected during lumbar spine surgery: a case report.

Sirima Phoowanakulchai, Hironobu Hayashi, Ayako Oi, Yasuhiro Takeshima, Tsunenori Takatani, Masahiko Kawaguchi

Open access · goldAbstract read
In one paragraph

Article in JA clinical reports, 2024. 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
0.6field-weighted citation impact, top 36% 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, 1 citations in OpenAlex.

  1. Trial
  2. Article
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 2 countries.

Sirima PhoowanakulchaiDepartment of Anesthesiology, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand.
Hironobu HayashiDepartment of Anesthesiology, Nara Medical University, Kashihara, Nara, 634-8522, Japan. payashi77@hotmail.com.ORCID http://orcid.org/0000-0002-4352-0423
Ayako OiDepartment of Anesthesiology, Nara Medical University, Kashihara, Nara, 634-8522, Japan.
Yasuhiro TakeshimaDepartment of Neurosurgery, Nara Medical University, Kashihara, Nara, Japan.
Tsunenori TakataniDivision of Central Operation, Nara Medical University Hospital, Kashihara, Nara, Japan.
Masahiko KawaguchiDepartment of Anesthesiology, Nara Medical University, Kashihara, Nara, 634-8522, Japan.
Nara Medical University · JPNara Medical University Hospital · JPSiriraj Hospital · TH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundWe present a case with abnormal findings of initial motor-evoked potential (MEP) in the left upper limb after prone positioning during lumbar spine surgery. CASE PRESENTATION: A 71-year-old man with bilateral lower extremity numbness without a history of preexisting motor weakness underwent L3-5 spinal fenestration. Initial MEP monitoring after prone positioning revealed markedly prolonged latency and lower amplitude in the left abductor pollicis brevis (APB). Because the left upper limb somatosensory-evoked potentials had normal values, a position-related impending peripheral nerve injury located between the neck and the forearm was excluded. Postoperative examination revealed that MEP abnormality in the left APB was caused by carpal tunnel syndrome.

conclusionsAbnormal initial MEP from the upper limb was unexpectedly detected after prone positioning during lumbar spine surgery. The condition was caused by preexisting carpal tunnel syndrome.

Indexed as

Lumber spine surgeryMotor-evoked potentialPeripheral nerve injuryProne positioningSomatosensory-evoked potentialTrain-of-four test

Identifiers

PMID38598105
PMCPMC11006633
OpenAlexW4394684790

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.