Evidence map›Paper›PMID 19565357›Full record

ArticleNeurocritical care2009

Diagnosing brain death by CT perfusion and multislice CT angiography.

Dolores Escudero, Jesús Otero, Lara Marqués, Diego Parra, José Antonio Gonzalo, Guillermo M Albaiceta, Luis Cofiño, Armando Blanco, Pedro Vega, Eduardo Murias and 3 more

Registry-linked trialAbstract read
PubMed Publisher
In one paragraph

Article in Neurocritical care, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02045407 (Computed Tomography Angiography Accuracy in Brain Death Diagnosis), which is not on this map. Cited by 30 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 3 pooled it
7.2field-weighted citation impact, top 3% 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.

NCT02045407 completednot on this mapstarted 2014, after this paper: background citation

Computed Tomography Angiography Accuracy in Brain Death Diagnosis

TypeobservationalSponsorSergio Brasil, MD MScRan2014 to 2019Enrolled106ConditionsBrain Death
3 · Its place in the literature

Who cites it

30 citing papers in PubMed, 3 syntheses or guidelines pooled it, 98 citations in OpenAlex.

  1. Guideline
  2. Pooled it
  3. Pooled it
  4. Article
  5. Review
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Observational
  13. Article
  14. Impact of Skull Defects on the Role of CTA for Brain Death Confirmation.AJNR. American journal of neuroradiology · 2019
    Observational
  15. Article
  16. The Role of Neuroimaging in the Determination of Brain Death.Journal of neuroimaging : official journal of the American Society of Neuroimaging · 2018
    Article
  17. Article
  18. Article
  19. Article
  20. 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

13 authors at 1 institution in 1 country.

Dolores EscuderoDepartment of Intensive Care Medicine, Hospital Universitario Central de Asturias, C/Celestino Villamil s/n, 33006 Oviedo, Spain. dolores.escudero@sespa.princast.es
Jesús Otero
Lara Marqués
Diego Parra
José Antonio Gonzalo
Guillermo M Albaiceta
Luis Cofiño
Armando Blanco
Pedro Vega
Eduardo Murias
Angela Meilan
Ricardo López Roger
Francisco Taboada
Hospital Universitario Central de Asturias · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionAlthough the diagnosis of brain death (BD) is usually based on clinical criteria, in sedated patients, ancillary techniques are needed. This study was designed to assess the accuracy of cerebral multislice computed tomographic angiography (CTA) and CT perfusion (CTP) in diagnosing BD.

methodsProspective observational study in 27 BD patients.

resultsAll patients were diagnosed as BD based on clinical and electroencephalogram findings. After BD diagnosis, CTP was performed followed by 64-detector multislice CTA from the aortic arch to the vertex. Images were reconstructed from 0.5 mm sections. In 24 patients, a lack of cerebral blood flow (CBF) was detected by CTP, and CTA revealed luminal narrowing of the internal carotid artery in the neck and absence of anterior and posterior intracranial circulation (sensitivity 89%). CTA detected CBF exclusively in extracranial portions of the internal carotid and vertebral arteries. Two patients with anoxic brain injury and decompressive craniectomy showed CBF in the CTA such that the CTP results were considered false negatives, given BD had been confirmed by clinical and EEG findings, along with evoked potentials. In one clinically BD patient, in whom an alpha rhythm was detected in the electroencephalogram, CBF was only observed in the intracranial internal carotid with no posterior circulation noted. This patient was therefore considered exclusively brain stem dead.

conclusionsThe radiological protocol used shows a high sensitivity and excellent specificity for detecting the cerebral circulatory arrest that accompanies BD. As a rapid, non-invasive, and widely available technique it is a promising alternative to conventional 4-vessel angiography.

Indexed as

AdultAgedAlpha RhythmBlood Flow VelocityBrainBrain DeathCerebral AngiographyCerebrovascular CirculationElectroencephalographyEvoked PotentialsFemaleHumansMaleMiddle AgedTomography, X-Ray ComputedUltrasonography, Doppler, Transcranial

Identifiers

PMID19565357
OpenAlexW2059368743

What OpenQuestion holds

Textmetadata
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.