Evidence map›Paper›PMID 36282423›Full record

Observational studyEuropean archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery2023

Assessment of intracranial pressure with ultrasonographic measurement of optic nerve sheath diameter on patients undergoing suspension direct laryngoscopy.

Elif Karali, Abdullah Demirhan, Akif Günes, Isa Yildiz, Ahmet Ural

Abstract readObservational Study
PubMed Publisher
In one paragraph

Observational study in European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.4field-weighted citation impact, top 37% 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

3 citing papers in PubMed, 4 citations in OpenAlex.

  1. Observational
  2. Observational
  3. Effect of twin block on intracranial pressure.Clinical oral investigations · 2025
    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

5 authors at 1 institution in 1 country.

Elif KaraliDepartment of Otorhinolaryngology, Faculty of Medicine, Bolu Abant Izzet Baysal University, Golkoy, Bolu, 14280, Turkey. elifkarali8181@gmail.com.ORCID http://orcid.org/0000-0002-8164-4056
Abdullah DemirhanDepartment of Anesthesiology and Reanimation, Faculty of Medicine, Bolu Abant Izzet Baysal University, Bolu, Turkey.
Akif GünesDepartment of Otorhinolaryngology, Faculty of Medicine, Bolu Abant Izzet Baysal University, Golkoy, Bolu, 14280, Turkey.
Isa YildizDepartment of Anesthesiology and Reanimation, Faculty of Medicine, Bolu Abant Izzet Baysal University, Bolu, Turkey.
Ahmet UralDepartment of Otorhinolaryngology, Faculty of Medicine, Bolu Abant Izzet Baysal University, Golkoy, Bolu, 14280, Turkey.
Bolu Abant İzzet Baysal University · TR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe study aims to examine the effect on intracranial pressure by calculating the optic nerve sheath diameter (ONSD) using ultrasound in patients who underwent suspension direct laryngoscopy.

methodsThirty-three patients who underwent suspension direct laryngoscopy were included in this prospective observational study. ONSD measurement was performed using a high-frequency linear probe. The ONSD basal (T0) value was determined using ultrasound in the supine position before the induction. Ultrasonography was used to record ONSD in the Boyce Jackson position (T1) just before inserting the laryngeal blade, in the Boyce Jackson position just before removing the laryngeal blade (T2), and in the supine position (T3) just before extubation.

resultsA statistically significant rise (p < 0.001) was seen between the patients' baseline ONSD values and the values at T1, T2, and T3. The optic nerve sheat diameter level recorded prior to withdrawing the laryngeal blade (T2) was considerably greater than the ONSD level calculated instantly before insertion of the laryngeal blade (T1) (p < 0.001). The ONSD value prior to extubation (T3) following the removal of the laryngeal blade was considerably smaller than the ONSD value prior removing the laryngeal blade (T2) (p < 0.001).

conclusionsThis study found that when the laryngeal blade is mounted during the suspension direct laryngoscopy surgery, there is a significant increase in ultrasonographically measured ONSD and increased the ONSD even further during the time the mouth gag was remained in situ. This is the first research to indicate that measuring ONSD with ultrasonography during suspension direct laryngoscopy raises intracranial pressure.

Indexed as

Intracranial HypertensionLaryngoscopyHumansIntracranial PressureOptic NerveProspective StudiesUltrasonographyIntracranial pressureMicrolaryngoscopic surgeryOptic nerve sheath diameterSuspension laryngoscopyUltrasound

Identifiers

PMID36282423
OpenAlexW4307230001

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.