Evidence map›Paper›PMID 31521153›Full record

Trial reportBMC medical education2019

Acquisition of basic ear surgery skills: a randomized comparison between endoscopic and microscopic techniques.

Lukas Anschuetz, Daniel Stricker, Abraam Yacoub, Wilhelm Wimmer, Marco Caversaccio, Sören Huwendiek

Abstract readComparative StudyRandomized Controlled Trial
In one paragraph

Trial report in BMC medical education, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing 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

9 citing papers in PubMed.

  1. Conventional one-handed compared to two-handed endoscopic ear surgery using an endoscope holder: a single center study.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 · 2025
    Article
  2. First evaluation of an ovine training model for sialendoscopy.Laryngoscope investigative otolaryngology · 2023
    Article
  3. Otoendoscopy in the era of narrow-band imaging: a pictorial review.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
    Article
  4. Current Trends in Endoscopic Ear Surgery.Otology & neurotology open · 2022
    Article
  5. Article
  6. [Clinical study on repairing subtotal perforation of tympanic membrane with cartilage island technique combined with palisade technique under otoscope].Lin chuang er bi yan hou tou jing wai ke za zhi = Journal of clinical otorhinolaryngology head and neck surgery · 2021
    Article
  7. Learning curve for endoscopic tympanoplasty type I: comparison of endoscopic-native and microscopically-trained surgeons.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 · 2021
    Article
  8. [Clinical application of transcanal endoscopic ear surgery in the diagnosis and treatment of conductive hearing loss with intact tympanic membrane].Lin chuang er bi yan hou tou jing wai ke za zhi = Journal of clinical otorhinolaryngology head and neck surgery · 2020
    Article
  9. 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

6 authors.

Lukas AnschuetzDepartment of Otorhinolaryngology, Head and Neck Surgery, Inselspital, University Hospital and University of Bern, Freiburgstrasse, CH-3010, Bern, Switzerland. anschuetz.lukas@gmail.com.ORCID http://orcid.org/0000-0001-6927-0664
Daniel StrickerInstitute for Medical Education, Department for Assessment and Evaluation, University of Bern, Bern, Switzerland.
Abraam YacoubDepartment of Otorhinolaryngology, Head and Neck Surgery, Inselspital, University Hospital and University of Bern, Freiburgstrasse, CH-3010, Bern, Switzerland.
Wilhelm WimmerDepartment of Otorhinolaryngology, Head and Neck Surgery, Inselspital, University Hospital and University of Bern, Freiburgstrasse, CH-3010, Bern, Switzerland.
Marco CaversaccioDepartment of Otorhinolaryngology, Head and Neck Surgery, Inselspital, University Hospital and University of Bern, Freiburgstrasse, CH-3010, Bern, Switzerland.
Sören HuwendiekInstitute for Medical Education, Department for Assessment and Evaluation, University of Bern, Bern, Switzerland.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundEndoscopic ear surgery is gaining increasing popularity and has an important impact on teaching middle ear anatomy and basic surgical skills among residents and fellows. Due to the wide-angled views offered, the approach significantly differs from the established microscopic technique. This randomized study compares the acquisition of basic ear-surgery skills using the endoscopic and microscopic technique under standardized conditions. We aim to investigate the required surgical times, attempts and accidental damages to surrounding structures (errors) in surgeons with different training levels.

methodsFinal-year medical students (n = 9), residents (n = 14) and consultants (n = 10) from the Department of Otorhinolaryngology, Head and Neck Surgery at the University Hospital of Bern, Switzerland were enrolled in the present study. After randomization every participant had to complete a standard set of grasping and dissecting surgical tasks in a temporal bone model. After the first session the participants were crossed over to the other technique.

resultsTime required for completion of the surgical tasks was similar for both techniques, but highly dependent on the training status. A significant increase in the number of damages to the ossicular chain was observed with the microscopic as compared to the endoscopic technique (p < 0.001). Moreover, students beginning with the endoscopic technique showed an overall significantly lower amount of time to complete the tasks (p = 0.04). From the subjective feedback a preference towards the endoscopic technique mainly in medical students was observed.

conclusionsThe endoscopic approach is useful and beneficial for teaching basic surgical skills, mainly by providing a reduction of damage to surrounding tissues with similar operating times for both techniques. Moreover, medical students performed significantly faster, when first taught in the endoscopic technique. Especially for young surgeons without previous training in ear surgery, the endoscope should be considered to improve surgical skills in the middle ear.

Indexed as

EndoscopyInternship and ResidencyMicroscopyClinical CompetenceHumansOtologic Surgical ProceduresStudents, MedicalSwitzerlandEducationEndoscopeEndoscopic ear surgeryMicroscopeSurgical skillsTeaching

Identifiers

PMID31521153
PMCPMC6744647

What OpenQuestion holds

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LicenceCC BY
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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.