Evidence map›Paper›PMID 37626247›Full record

SynthesisEuropean spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society2023

Utility of transcranial motor-evoked potential changes in predicting postoperative deficit in lumbar decompression and fusion surgery: a systematic review and meta-analysis.

Rajiv P Reddy, Vamsi K Gorijala, Varun R Kaithi, Varun Shandal, Katherine M Anetakis, Jeffrey R Balzer, Donald J Crammond, Jeremy D Shaw, Joon Y Lee, Parthasarathy D Thirumala

Abstract readMeta-AnalysisSystematic Review
PubMed Publisher
In one paragraph

Synthesis in European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
0.6field-weighted citation impact, top 29% 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

1 citing paper in PubMed, 2 citations in OpenAlex.

  1. 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

10 authors at 2 institutions in 1 country.

Rajiv P ReddyPittsburgh Orthopaedic Spine Research, University of Pittsburgh Medical Center, Pittsburgh, PA, USA. rpr17@pitt.edu.ORCID http://orcid.org/0000-0001-8862-1458
Vamsi K GorijalaPittsburgh Orthopaedic Spine Research, University of Pittsburgh Medical Center, Pittsburgh, PA, USA.
Varun R KaithiDepartment of Neurology, University of Pittsburgh Medical Center, Pittsburgh, PA, USA.
Varun ShandalDepartment of Neurological Surgery, University of Pittsburgh, Pittsburgh, PA, USA.
Katherine M AnetakisDepartment of Neurological Surgery, University of Pittsburgh, Pittsburgh, PA, USA.
Jeffrey R BalzerDepartment of Neurological Surgery, University of Pittsburgh, Pittsburgh, PA, USA.
Donald J CrammondDepartment of Neurological Surgery, University of Pittsburgh, Pittsburgh, PA, USA.
Jeremy D ShawPittsburgh Orthopaedic Spine Research, University of Pittsburgh Medical Center, Pittsburgh, PA, USA.
Joon Y LeePittsburgh Orthopaedic Spine Research, University of Pittsburgh Medical Center, Pittsburgh, PA, USA.
Parthasarathy D ThirumalaDepartment of Neurological Surgery, University of Pittsburgh, Pittsburgh, PA, USA.
University of Pittsburgh · USUniversity of Pittsburgh Medical Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe primary aim of this study was to evaluate whether TcMEP alarms can predict the occurrence of postoperative neurological deficit in patients undergoing lumbar spine surgery. The secondary aim was to determine whether the various types of TcMEP alarms including transient and persistent changes portend varying degrees of injury risk.

methodsThis was a systematic review and meta-analysis of the literature from PubMed, Web of Science, and Embase regarding outcomes of transcranial motor-evoked potential (TcMEP) monitoring during lumbar decompression and fusion surgery. The sensitivity, specificity, and diagnostic odds ratio (DOR) of TcMEP alarms for predicting postoperative deficit were calculated and presented with forest plots and a summary receiver operating characteristic curve.

resultsEight studies were included, consisting of 4923 patients. The incidence of postoperative neurological deficit was 0.73% (36/4923). The incidence of deficits in patients with significant TcMEP changes was 11.79% (27/229), while the incidence in those without changes was 0.19% (9/4694). All TcMEP alarms had a pooled sensitivity and specificity of 63 and 95% with a DOR of 34.92 (95% CI 7.95-153.42). Transient and persistent changes had sensitivities of 29% and 47%, specificities of 96% and 98%, and DORs of 8.04 and 66.06, respectively.

conclusionTcMEP monitoring has high specificity but low sensitivity for predicting postoperative neurological deficit in lumbar decompression and fusion surgery. Patients who awoke with new postoperative deficits were 35 times more likely to have experienced TcMEP changes intraoperatively, with persistent changes indicating higher risk of deficit than transient changes. LEVEL OF EVIDENCE II: Diagnostic Systematic Review.

Indexed as

Evoked Potentials, MotorIntraoperative Neurophysiological MonitoringDecompressionHumansLumbosacral RegionNeurosurgical ProceduresSensitivity and SpecificityIntraoperative neuromonitoringLumbarMotor-evoked potentialSpineTcMEP

Identifiers

PMID37626247
OpenAlexW4386157311

What OpenQuestion holds

Textmetadata
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.