Evidence map›Paper›PMID 24985500›Full record

Trial reportNeurocritical care2014

Does prone positioning increase intracranial pressure? A retrospective analysis of patients with acute brain injury and acute respiratory failure.

Christian Roth, Andreas Ferbert, Wolfgang Deinsberger, Jens Kleffmann, Stefanie Kästner, Jana Godau, Marc Schüler, Michael Tryba, Markus Gehling

Abstract readClinical Trial
PubMed Publisher
In one paragraph

Trial report in Neurocritical care, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed, 3 pooled it
4.1field-weighted citation impact, top 6% 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

48 citing papers in PubMed, 3 syntheses or guidelines pooled it, 108 citations in OpenAlex.

  1. Guideline
  2. Pooled it
  3. Pooled it
  4. Article
  5. Mechanical ventilation in acute brain injury.Breathe (Sheffield, England) · 2026
    Review
  6. Review
  7. Acute management of spinal fractures: What you need to know.The journal of trauma and acute care surgery · 2026
    Review
  8. Bridging brain and lung: optimizing mechanical ventilation in acute brain injury.Journal of anesthesia, analgesia and critical care · 2025
    Review
  9. Article
  10. Article
  11. Observational
  12. Review
  13. Article
  14. Organ crosstalk: brain-lung interaction.Frontiers in medicine · 2025
    Review
  15. Article
  16. Article
  17. Article
  18. Observational
  19. Review
  20. 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 2 institutions in 1 country.

Christian RothDepartment of Neurology, Klinikum Kassel, Mönchebergstraße 41-43, 34125, Kassel, Germany, roth99@web.de.
Andreas Ferbert
Wolfgang Deinsberger
Jens Kleffmann
Stefanie Kästner
Jana Godau
Marc Schüler
Michael Tryba
Markus Gehling
Klinikum Kassel · DEPhilipps University of Marburg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe objective of our trial was to obtain more comprehensive data on the risks and benefits of kinetic therapy in intensive care patients with intracerebral pathology.

methodsStandardized data of prone positioning in our NeuroIntensive Care Unit were collected from 2007 onward. A post hoc analysis of all available data was undertaken, with special consideration given to values of intracranial pressure (ICP), cerebral perfusion pressure (CPP) and oxygenation in correlation to prone (PP), or supine positioning (SP) of patients. Cases were considered eligible if kinetic therapy and ICP were documented. Prone positioning was performed in a 135° position for 8 h per treatment unit.

resultsA total of 115 patients treated with prone positioning from 2007 to 2013 were identified in our medical records. Of these, 29 patients received ICP monitoring. Overall, 119 treatment units of prone positioning with a mean duration of 2.5 days per patient were performed. The mean baseline ICP in SP was 9.5 ± 5.9 mmHg and was increased significantly during PP (p < 0.0001). There was no significant difference between CPP in SP (82 ± 14.5 mmHg) compared to PP (p > 0.05). ICP values >20 mmHg occurred more often during PP than SP (p < 0.0001) and were associated with significantly more episodes of decreased CPP <70 mmHg (p < 0.0022). The mean paO(2)/FiO(2) ratio (P/F ratio) was increased significantly in prone positioning of patients (p < 0.0001).

conclusionsThe analyzed data allow a more precise understanding of changes in ICP and oxygenation during prone positioning in patients with acute brain injury and almost normal baseline ICP. Our study shows a moderate, yet significant elevation of ICP during prone positioning. However, the achieved increase of oxygenation by far exceeded the changes in ICP. It is evident that continuous monitoring of cerebral pressure is required in this patient group.

Indexed as

AdultBrain InjuriesCerebrovascular CirculationFemaleHumansIntracranial PressureMaleMiddle AgedMonitoring, PhysiologicOxygen ConsumptionProne PositionRespiration, ArtificialRespiratory InsufficiencyRetrospective StudiesSupine PositionYoung Adult

Identifiers

PMID24985500
OpenAlexW2036310004

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.