Evidence map›Paper›PMID 26268137›Full record

ArticleNeurocritical care2015

Doppler Non-invasive Monitoring of ICP in an Animal Model of Acute Intracranial Hypertension.

Chiara Robba, Joseph Donnelly, Rita Bertuetti, Danilo Cardim, Mypinder S Sekhon, Marcel Aries, Peter Smielewski, Hugh Richards, Marek Czosnyka

Open access · bronzeAbstract read
PubMed Publisher
In one paragraph

Article in Neurocritical care, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
2.9field-weighted citation impact, top 10% 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

12 citing papers in PubMed, 39 citations in OpenAlex.

  1. Review
  2. Observational
  3. Article
  4. Article
  5. Observational
  6. Ultrasound non-invasive intracranial pressure assessment in paediatric neurocritical care: a pilot study.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2020
    Article
  7. Article
  8. How I use Transcranial Doppler.Critical care (London, England) · 2019
    Article
  9. Review
  10. Use of a Doppler-Based Pulsatility Index to Evaluate Cerebral Hemodynamics in Neurocritical Patients After Hemicraniectomy.Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine · 2019
    Article
  11. Cerebral haemodynamics during experimental intracranial hypertension.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2017
    Article
  12. 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

9 authors at 4 institutions in 2 countries.

Chiara RobbaNeurocritical Care Unit, Addenbrooke's Hospital, Cambridge University, Cambridge University Hospitals Trust, Box 1, Hills Road, Cambridge, CB2 0QQ, UK. kiarobba@gmail.com.
Joseph DonnellyDivision of Neurosurgery, Department of Clinical Neurosciences, Addenbrooke's Hospital, Cambridge University Hospitals Trust, Hills Road, Cambridge, CB2 0QQ, UK.
Rita BertuettiNeurocritical Care Unit, Addenbrooke's Hospital, Cambridge University, Cambridge University Hospitals Trust, Box 1, Hills Road, Cambridge, CB2 0QQ, UK.
Danilo CardimDivision of Neurosurgery, Department of Clinical Neurosciences, Addenbrooke's Hospital, Cambridge University Hospitals Trust, Hills Road, Cambridge, CB2 0QQ, UK.
Mypinder S SekhonDepartment of Medicine, Division of Critical Care Medicine, Vancouver General Hospital, University of British Columbia, West 12th Avenue, Vancouver, BC, V5Z 1M9, Canada.
Marcel AriesDivision of Neurosurgery, Department of Clinical Neurosciences, Addenbrooke's Hospital, Cambridge University Hospitals Trust, Hills Road, Cambridge, CB2 0QQ, UK.
Peter SmielewskiDivision of Neurosurgery, Department of Clinical Neurosciences, Addenbrooke's Hospital, Cambridge University Hospitals Trust, Hills Road, Cambridge, CB2 0QQ, UK.
Hugh RichardsDivision of Neurosurgery, Department of Clinical Neurosciences, Addenbrooke's Hospital, Cambridge University Hospitals Trust, Hills Road, Cambridge, CB2 0QQ, UK.
Marek CzosnykaDivision of Neurosurgery, Department of Clinical Neurosciences, Addenbrooke's Hospital, Cambridge University Hospitals Trust, Hills Road, Cambridge, CB2 0QQ, UK.
Addenbrooke's Hospital · GBCambridge University Hospitals NHS Foundation Trust · GBUniversity of Cambridge · GBUniversity of British Columbia · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIn many neurological diseases, intracranial pressure (ICP) is elevated and needs to be actively managed. ICP is typically measured with an invasive transducer, which carries risks. Non-invasive techniques for monitoring ICP (nICP) have been developed. The aim of this study was to compare three different methods of transcranial Doppler (TCD) assessment of nICP in an animal model of acute intracranial hypertension.

methodsIn 28 rabbits, ICP was increased to 70-80 mmHg by infusion of Hartmann's solution into the lumbar subarachnoid space. Doppler flow velocity in the basilar artery was recorded. nICP was assessed through three different methods: Gosling's pulsatility index PI (gPI), Aaslid's method (AaICP), and a method based on diastolic blood flow velocity (FVdICP).

resultsWe found a significant correlation between nICP and ICP when all infusion experiments were combined (FVdICP: r = 0.77, AaICP: r = 0.53, gPI: r = 0.54). The ability to distinguish between raised and 'normal' values of ICP was greatest for FVdICP (AUC 0.90 at ICP >40 mmHg). When infusion experiments were considered independently, FVdICP demonstrated again the strongest correlation between changes in ICP and changes in nICP (mean r = 0.85).

conclusionsTCD-based methods of nICP monitoring are better at detecting changes of ICP occurring in time, rather than absolute prediction of ICP as a number. Of the studied methods of nICP, the method based on FVd is best to discriminate between raised and 'normal' ICP and to monitor relative changes of ICP.

Indexed as

AnimalsDisease Models, AnimalIntracranial HypertensionIntracranial PressureMaleRabbitsUltrasonography, Doppler, TranscranialIntracranial pressurePulsatility indexRabbitTranscranial Doppler

Identifiers

PMID26268137
OpenAlexW1161147050

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.