Evidence map›Paper›PMID 31610775›Full record

SynthesisFluids and barriers of the CNS2019

B waves: a systematic review of terminology, characteristics, and analysis methods.

Isabel Martinez-Tejada, Alexander Arum, Jens E Wilhjelm, Marianne Juhler, Morten Andresen

Abstract readSystematic Review
In one paragraph

Synthesis in Fluids and barriers of the CNS, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
–field-weighted citation impact
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

19 citing papers in PubMed.

  1. Article
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  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Intracranial pressure for clinicians: it is not just a number.Journal of anesthesia, analgesia and critical care · 2023
    Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. 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

5 authors.

Isabel Martinez-TejadaClinic of Neurosurgery, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark. imate@dtu.dk.ORCID http://orcid.org/0000-0003-4717-8597
Alexander ArumClinic of Neurosurgery, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark.
Jens E WilhjelmDepartment of Health Technology, Technical University of Denmark, Kongens Lyngby, Denmark.
Marianne JuhlerClinic of Neurosurgery, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark.
Morten AndresenClinic of Neurosurgery, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark.

Funding

Novo Nordisk Fonden NNF17OC0024718
6 · The paper itself

Abstract

backgroundAlthough B waves were introduced as a concept in the analysis of intracranial pressure (ICP) recordings nearly 60 years ago, there is still a lack consensus on precise definitions, terminology, amplitude, frequency or origin. Several competing terms exist, addressing either their probable physiological origin or their physical characteristics. To better understand B wave characteristics and ease their detection, a literature review was carried out.

methodsA systematic review protocol including search strategy and eligibility criteria was prepared in advance. A literature search was carried out using PubMed/MEDLINE, with the following search terms: B waves + review filter, slow waves + review filter, ICP B waves, slow ICP waves, slow vasogenic waves, Lundberg B waves, MOCAIP.

resultsIn total, 19 different terms were found, B waves being the most common. These terminologies appear to be interchangeable and seem to be used indiscriminately, with some papers using more than five different terms. Definitions and etiologies are still unclear, which makes systematic and standardized detection difficult.

conclusionsTwo future lines of action are available for automating macro-pattern identification in ICP signals: achieving strict agreement on morphological characteristics of "traditional" B waveforms, or starting a new with a fresh computerized approach for recognition of new clinically relevant patterns.

Indexed as

Monitoring, PhysiologicAlgorithmsCerebrovascular CirculationHumansIntracranial PressureSignal Processing, Computer-AssistedB wavesIntracranial pressureSlow wavesVasogenic waves

Identifiers

PMID31610775
PMCPMC6792201

What OpenQuestion holds

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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.