Evidence map›Paper›PMID 23093994›Full record

ArticleDeutsches Arzteblatt international2012

Technical aids in the diagnosis of brain death: a comparison of SEP, AEP, EEG, TCD and CT angiography.

Stefan Welschehold, Stephan Boor, Katharina Reuland, Frank Thömke, Thomas Kerz, André Reuland, Christian Beyer, Martin Gartenschläger, Wolfgang Wagner, Alf Giese and 1 more

Abstract read
In one paragraph

Article in Deutsches Arzteblatt international, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed, 2 pooled it
5.3field-weighted citation impact, top 4% 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

32 citing papers in PubMed, 2 syntheses or guidelines pooled it, 65 citations in OpenAlex.

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  14. Observational
  15. Impact of Skull Defects on the Role of CTA for Brain Death Confirmation.AJNR. American journal of neuroradiology · 2019
    Observational
  16. Article
  17. Article
  18. The Role of Neuroimaging in the Determination of Brain Death.Journal of neuroimaging : official journal of the American Society of Neuroimaging · 2018
    Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

11 authors at 1 institution in 1 country.

Stefan WelscheholdDepartment of Neurotraumatology and Neurosurgery, Asklepios Hospital Weißenfels, Trauma Center.
Stephan Boor
Katharina Reuland
Frank Thömke
Thomas Kerz
André Reuland
Christian Beyer
Martin Gartenschläger
Wolfgang Wagner
Alf Giese
Wibke Müller-Forell
University Medical Center of the Johannes Gutenberg University Mainz · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe use of technical aids to confirm brain death is a controversial matter. Angiography with the intra-arterial administration of contrast medium is the international gold standard, but it is not allowed in Germany except in cases where it provides a potential mode of treatment. The currently approved tests in Germany are recordings of somatosensory evoked potentials (SSEP), brain perfusion scintigraphy, transcranial Doppler ultrasonography (TCD), and electroencephalography (EEG). CT angiography (CTA), a promising new alternative, is being increasingly used as well.

methodsIn a prospective, single-center study that was carried out from 2008 to 2011, 71 consecutive patients in whom brain death was diagnosed on clinical grounds underwent recording of auditory evoked potentials (AEP) and SSEP as well as EEG, TCD and CTA.

resultsThe validity of CTA for the confirmation of brain death was 94%; the validity of the other tests was: 94% for EEG, 92% for TCD, 82% for SSEP, and 2% for AEP. In 61 of the 71 patients (86%), the EEG, TCD and CTA findings all accorded with the clinical diagnosis. The diagnosis of brain death was established beyond doubt in all patients.

conclusionIn this study, the technical aids yielded discordant results in 14% of cases, necessitating interpretation by an expert examiner. The perfusion tests, in particular, can give false-positive results in patients with large cranial defects, skull fractures, or cerebrospinal fluid drainage. In such cases, electrophysiologic tests or a repeated clinical examination should be performed instead. CTA is a promising, highly reliable new method for demonstrating absent intracranial blood flow. In our view, it should be incorporated into the German guidelines for the diagnosis of brain death.

Indexed as

Cerebral AngiographyElectroencephalographyTomography, X-Ray ComputedUltrasonography, Doppler, TranscranialAdolescentAdultAgedAged, 80 and overBrain DeathBrain StemEvoked Potentials, AuditoryEvoked Potentials, SomatosensoryFalse Positive ReactionsFemaleHumansMale

Identifiers

PMID23093994
PMCPMC3475291
OpenAlexW2129434451

What OpenQuestion holds

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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.