Evidence map›Paper›PMID 28778151›Full record

ArticleBMC anesthesiology2017

Development of an algorithm using clinical tests to avoid post-operative residual neuromuscular block.

Christoph Unterbuchner, Manfred Blobner, Friedrich Pühringer, Matthias Janda, Sebastian Bischoff, Berthold Bein, Annette Schmidt, Kurt Ulm, Viktor Pithamitsis, Heidrun Fink

2 registry-linked trialsOpen access · goldAbstract readControlled Clinical Trial
In one paragraph

Article in BMC anesthesiology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
2.4field-weighted citation impact, top 11% 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.

NCT03219138 nacompletednot on this map

Development of an Algorithm Using Clinical Tests to Avoid Post-operative Residual Neuromuscular Block

TypeinterventionalSponsorUniversity of RegensburgRan2008 to 2009Enrolled265ConditionsPostoperative Residual CurarizationArmsAcceleromyography
NCT03893058 unknown statusnot on this mapstarted 2018, after this paper: background citation

Evaluation of the NeuroMuscular Junction Using the Single Fiber Electromyography and Reliability of Train-Of-Four in Critically Ill Patients.

TypeobservationalSponsorAzienda Socio Sanitaria Territoriale degli Spedali Civili di BresciaRan2018 to 2022Enrolled85ConditionsCritical Illness Polyneuropathy, Critical Illness Myopathy, Weakness Due to Disease, Neuromuscular Blockade
3 · Its place in the literature

Who cites it

6 citing papers in PubMed, 13 citations in OpenAlex.

  1. Review
  2. Article
  3. Review
  4. Neuromuscular Block and Blocking Agents in 2018.Turkish journal of anaesthesiology and reanimation · 2018
    Article
  5. Neuromuscular monitoring: an update.Romanian journal of anaesthesia and intensive care · 2018
    Review
  6. 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

10 authors at 6 institutions in 1 country.

Christoph UnterbuchnerKlinik für Anaesthesiologie, Klinikum rechts der Isar, Technische Universität München, Munich, Ismaninger Str. 22, 81675, Munich, Germany. Christoph.unterbuchner@ukr.de.ORCID http://orcid.org/0000-0002-7991-8361
Manfred BlobnerKlinik für Anaesthesiologie, Klinikum rechts der Isar, Technische Universität München, Munich, Ismaninger Str. 22, 81675, Munich, Germany.
Friedrich PühringerKlinik für Anaesthesiologie und operative Intensivmedizin, Klinikum am Steinenberg, Steinenbergstr. 31, 72764, Reutlingen, Germany.
Matthias JandaKlinik und Poliklinik für Anästhesiologie und Intensivtherapie, Universität Rostock, Schillingallee 35, 18057, Rostock, Germany.
Sebastian BischoffKlinik und Poliklinik für Anästhesiologie und operative Intensivmedizin, Universitätsklinikum Münster, Albert-Schweitzer-Campus 1, 48149, Münster, Germany.
Berthold BeinKlinik für Anästhesiologie und Operative Intensivmedizin, Universitätsklinikum Schleswig-Holstein, Campus Kiel, Arnold-Heller-Str. 3, 24105, Kiel, Germany.
Annette SchmidtKlinik für Anaesthesiologie, Universitätsmedizin der Johannes Gutenberg-Universität Mainz, Langenbeckstr. 1, 55131, Mainz, Germany.
Kurt UlmKlinik für Anaesthesiologie, Klinikum rechts der Isar, Technische Universität München, Munich, Ismaninger Str. 22, 81675, Munich, Germany.
Viktor PithamitsisKlinik für Anaesthesiologie, Klinikum rechts der Isar, Technische Universität München, Munich, Ismaninger Str. 22, 81675, Munich, Germany.
Heidrun FinkKlinik für Anaesthesiologie, Klinikum rechts der Isar, Technische Universität München, Munich, Ismaninger Str. 22, 81675, Munich, Germany.
TUM Klinikum · DEJohannes Gutenberg University Mainz · DEKreiskliniken Reutlingen · DEUniversity Hospital Münster · DEUniversity Hospital Schleswig-Holstein · DEUniversity of Rostock · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundQuantitative neuromuscular monitoring is the gold standard to detect postoperative residual curarization (PORC). Many anesthesiologists, however, use insensitive, qualitative neuromuscular monitoring or unreliable, clinical tests. Goal of this multicentre, prospective, double-blinded, assessor controlled study was to develop an algorithm of muscle function tests to identify PORC.

methodsAfter extubation a blinded anesthetist performed eight clinical tests in 165 patients. Test results were correlated to calibrated electromyography train-of-four (TOF) ratio and to a postoperatively applied uncalibrated acceleromyography. A classification and regression tree (CART) was calculated developing the algorithm to identify PORC. This was validated against uncalibrated acceleromyography and tactile judgement of TOF fading in separate 100 patients.

resultsAfter eliminating three tests with poor correlation, a model with four tests (r = 0.844) and uncalibrated acceleromyography (r = 0.873) were correlated to electromyographical TOF-values without losing quality of prediction. CART analysis showed that three consecutively performed tests (arm lift, head lift and swallowing or eye opening) can predict electromyographical TOF. Prediction coefficients reveal an advantage of the uncalibrated acceleromyography in terms of specificity to identify the EMG measured train-of-four ratio < 0.7 (100% vs. 42.9%) and <0.9 (89.7% vs. 34.5%) compared to the algorithm. However, due to the high sensitivity of the algorithm (100% vs. 94.4%), the risk to overlook an awake patient with a train-of-four ratio < 0.7 was minimal. Tactile judgement of TOF fading showed poorest sensitivity and specifity at train of four ratio < 0.9 (33.7%, 0%) and <0.7 (18.8%, 16.7%).

conclusionsResidual neuromuscular blockade can be detected by uncalibrated acceleromyography and if not available by a pathway of four clinical muscle function tests in awake patients. The algorithm has a discriminative power comparable to uncalibrated AMG within TOF-values >0.7 and <0.3.

trial registrationClinical Trials.gov (principal investigator's name: CU, and identifier: NCT03219138) on July 8, 2017.

Indexed as

AlgorithmsPredictive Value of TestsAdolescentAdultAgedDelayed Emergence from AnesthesiaDouble-Blind MethodElectromyographyFemaleHumansKinetocardiographyMaleMiddle AgedYoung Adultacceleromyographyalgorithmclinical muscle function testselectromyographyPostoperative residual curarization

Identifiers

PMID28778151
PMCPMC5545011
OpenAlexW2744719071

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

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.