Evidence map›Paper›PMID 40522589›Full record

ArticleThe ultrasound journal2025

Efficacy of a theoretical-practical course for the ultrasound measurement of the optic nerve diameter in different healthcare operators.

Eugenio Garofalo, Giuseppe Neri, Vincenzo Bosco, Zaninni Caroleo, Fabiola Virdò, Helenia Mastrangelo, Giusy Guzzi, Gianmaria Cammarota, Chiara Robba, Federico Longhini and 2 more

Erratum issuedAbstract read
In one paragraph

Article in The ultrasound journal, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. Review
  2. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

12 authors.

Eugenio Garofalo *Anesthesia and Intensive Care, Department of Medical and Surgical Sciences, "Magna Graecia" University, Catanzaro, Italy.
Giuseppe Neri *Anesthesia and Intensive Care, Department of Medical and Surgical Sciences, "Magna Graecia" University, Catanzaro, Italy.
Vincenzo BoscoAnesthesia and Intensive Care, Department of Medical and Surgical Sciences, "Magna Graecia" University, Catanzaro, Italy.
Zaninni CaroleoAnesthesia and Intensive Care, Department of Medical and Surgical Sciences, "Magna Graecia" University, Catanzaro, Italy.
Fabiola VirdòAnesthesia and Intensive Care, Department of Medical and Surgical Sciences, "Magna Graecia" University, Catanzaro, Italy.
Helenia MastrangeloAnesthesia and Intensive Care, Department of Medical and Surgical Sciences, "Magna Graecia" University, Catanzaro, Italy.
Giusy GuzziDepartment of Neurosurgery, "R Dulbecco" University Hospital, Catanzaro, Italy.
Gianmaria CammarotaDepartment of Translational Medicine, Eastern Piedmont University, Novara, Italy.
Chiara RobbaDepartment of Surgical Science and Integrated Diagnostic, University of Genova, Genoa, Italy.
Federico LonghiniAnesthesia and Intensive Care, Department of Medical and Surgical Sciences, "Magna Graecia" University, Catanzaro, Italy. longhini.federico@gmail.com.ORCID http://orcid.org/0000-0002-6970-7202
Andrea BruniAnesthesia and Intensive Care, Department of Medical and Surgical Sciences, "Magna Graecia" University, Catanzaro, Italy.
ONSD study group

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe measurement of the optic nerve sheath diameter (ONSD) via ultrasound is a non-invasive technique to estimate intracranial pressure. Brief training has been shown to be effective in accurately teaching the ONSD technique in specialized healthcare providers. This study evaluates the ability of medical and nursing students, Intensive Care Unit (ICU) nurses, and ICU residents to perform ONSD measurements after a brief training.

methodsForty participants underwent a 4-h training session consisting of 30 min of lecture focusing on the key principles of the technique for ONSD measurement, followed by at least 20 measurements with an expert tutor. Thereafter, all participants assessed 5 ONSD measurements on healthy volunteers and their assessments were compared to those by the expert tutor.

resultsAll participants successfully visualized the optic nerve and recorded similar values among groups (p > 0.05 for all comparisons). ICU nurse residents and medical students demonstrated a good accuracyof measurements, as defined by an upper and lower limits of agreement with the expert tutor not exceeding 0.5 mm in the Bland-Altman analysis. On the opposite, nurse students had the highest error rates and poor accuracy in ONSD assessment.

conclusionsThese findings highlight the feasibility of training medical students, ICU nurses and residents in ONSD measurement, opening the possibility of a wider application of this technique. After dedicated training, ONSD assessment and monitoring could be performed not only by specialists but also by other healthcare providers, including specialized nurses. This may serve as an additional tool for the rapid triage of patients, even in out-of-hospital settings.

Indexed as

AccuracyIntensive care unitIntracranial pressureNurseOptic nerve sheath diameterStudentTrainingUltrasound

Identifiers

PMID40522589
PMCPMC12170489

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Registered trials

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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.