Evidence map›Paper›PMID 40927180›Full record

ArticleResuscitation plus2025

Avalanche transceiver search times during avalanche companion rescue - A prospective randomized single-blinded cross-over simulation study.

Bernd Wallner, Simon Woyke, Manuel Winkler, Fabio Caramazza, Ivo B Regli, Gabriel Putzer, Giacomo Strapazzon, Markus Falk, Hermann Brugger, Katharina Hüfner and 1 more

Abstract read
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In one paragraph

Article in Resuscitation plus, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Emergency care for avalanche buried patients - a narrative review.Scandinavian journal of trauma, resuscitation and emergency medicine · 2026
    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

11 authors.

Bernd WallnerDepartment of Anaesthesiology and Intensive Care Medicine, Innsbruck Medical University Hospital, Medical University of Innsbruck, Anichstrasse 35, 6020 Innsbruck, Austria.
Simon WoykeDepartment of Anaesthesiology and Intensive Care Medicine, Innsbruck Medical University Hospital, Medical University of Innsbruck, Anichstrasse 35, 6020 Innsbruck, Austria.
Manuel WinklerDepartment of Anaesthesiology and Intensive Care Medicine, Innsbruck Medical University Hospital, Medical University of Innsbruck, Anichstrasse 35, 6020 Innsbruck, Austria.
Fabio CaramazzaDepartment of Anaesthesiology and Intensive Care Medicine, Innsbruck Medical University Hospital, Medical University of Innsbruck, Anichstrasse 35, 6020 Innsbruck, Austria.
Ivo B RegliInstitute of Mountain Emergency Medicine, Eurac Research, Via Ipazia 2, 39100 Bolzano, Italy.
Gabriel PutzerDepartment of Anaesthesiology and Intensive Care Medicine, Innsbruck Medical University Hospital, Medical University of Innsbruck, Anichstrasse 35, 6020 Innsbruck, Austria.
Giacomo StrapazzonInstitute of Mountain Emergency Medicine, Eurac Research, Via Ipazia 2, 39100 Bolzano, Italy.
Markus FalkInstitute of Mountain Emergency Medicine, Eurac Research, Via Ipazia 2, 39100 Bolzano, Italy.
Hermann BruggerInstitute of Mountain Emergency Medicine, Eurac Research, Via Ipazia 2, 39100 Bolzano, Italy.
Katharina HüfnerDepartment of Psychiatry, Psychotherapy, Psychosomatics, and Medical Psychology, University Clinic for Psychiatry II, Innsbruck Medical University, Anichstrasse 35, 6020 Innsbruck, Austria.
Peter MairDepartment of Anaesthesiology and Intensive Care Medicine, Innsbruck Medical University Hospital, Medical University of Innsbruck, Anichstrasse 35, 6020 Innsbruck, Austria.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: The aim of this study was to analyse the influence of voice navigation in a new generation of transceivers on the time and success rate of transceiver search in a simulated avalanche rescue scenario. Methods: Fifty participants performed two randomized test runs, using two different transmitters with and without voice navigation. Primary outcome was success rate, total transceiver search and total location time, secondary outcome parameters comprised predefined time intervals (coarse search time, fine search time, probing time) and deviations from the recommended standard search procedure. Results: The study shows comparable results in success rate, total transceiver search time (111.1 s ± SD84.3 s) and total location time (134.4 s ± SD 112.6 s) for trials with and without voice navigation. Wrong initial search direction was corrected earlier in trials with voice (49.6 ± 6.9 s versus 93.7 ± 18.4 s p = 0.011). Participants were significantly faster in the second search trial (first 203.0 s versus 143.2 s; p = 0.002), a learning effect, more pronounced with voice navigation (voice 119.8 s vs. no-voice 164.8 s; p = 0.014). Deviations from the recommended standard search procedure were common (55 % of trials), without any difference between voice and no-voice navigation. Conclusions: This study demonstrated a wide inter-individual variation in total transceiver search times and total location time in participants without experience. Voice navigation did not result in a significant reduction of transceiver search times but led to a faster correction of a wrong initial search direction and improved the learning effect significantly in second trials. Voice navigation could possibly optimize performance in participants without prior experience in stressful situations.

Indexed as

Avalanche rescueAvalanche transceiverFirst responderTrainingVoice navigation

Identifiers

PMID40927180
PMCPMC12415072

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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.