Evidence map›Paper›PMID 40963146›Full record

Trial reportBMC anesthesiology2025

Comparison of the oropharyngeal leak pressure in head rotation between a first-generation laryngeal mask and the i-gel laryngeal mask during general anesthesia - a randomized controlled trial.

Philipp Brandhorst, Valentina Palella, Konstantin Cloeren, Stephan Voegeler, Sascha Treskatsch, Moritz Weigeldt

Abstract readRandomized Controlled TrialComparative Study
In one paragraph

Trial report in BMC anesthesiology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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.

Philipp BrandhorstDepartment of Anaesthesiology and Intensive Care Medicine, Campus Benjamin Franklin, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität and Humboldt Universität zu Berlin, Hindenburgdamm 30, Berlin, D-12203, Germany.
Valentina PalellaDepartment of Anaesthesiology and Intensive Care Medicine, Campus Benjamin Franklin, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität and Humboldt Universität zu Berlin, Hindenburgdamm 30, Berlin, D-12203, Germany.
Konstantin CloerenDepartment of Anaesthesiology and Intensive Care Medicine, Campus Benjamin Franklin, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität and Humboldt Universität zu Berlin, Hindenburgdamm 30, Berlin, D-12203, Germany.
Stephan VoegelerDepartment of Anaesthesiology and Intensive Care Medicine, Campus Benjamin Franklin, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität and Humboldt Universität zu Berlin, Hindenburgdamm 30, Berlin, D-12203, Germany.
Sascha TreskatschDepartment of Anaesthesiology and Intensive Care Medicine, Campus Benjamin Franklin, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität and Humboldt Universität zu Berlin, Hindenburgdamm 30, Berlin, D-12203, Germany.
Moritz WeigeldtDepartment of Anaesthesiology and Intensive Care Medicine, Campus Benjamin Franklin, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität and Humboldt Universität zu Berlin, Hindenburgdamm 30, Berlin, D-12203, Germany. moritz.weigeldt@charite.de.ORCID http://orcid.org/0000-0002-0052-9604

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe laryngeal mask airway (LMA) is essential in anesthesia, using an air-inflatable cuff for optimal pharyngeal fit. The i-gel

methodsPatients undergoing elective surgery securing the airway with either cLMA or i-gel were included. Exclusion criteria included a Body Mass Index > 30 kg/m², cervical spine pathologies or restricted head rotation. OLP was measured after induction at 60° bilateral head rotation for primary outcome. Secondary outcomes were OLP at 0° head rotation and postoperative complications on postoperative day 1.

results116 patients were randomized to either the cLMA (n = 60) or i-gel (n = 56) group. No significant difference was found in the OLP with 60° head rotation to the left (cLMA 20 cmH

conclusionsThis study demonstrated comparable OLP between cLMA and i-gel during head rotation. This indicates equivalent efficacy and seal integrity of both LMAs during head rotation, resulting in sufficient tidal volumes during rotated head positions.

trial registrationGerman Clinical Trials Register, retrospectively registered under DRKS00031785 (date of registration 26.04.2023).

Indexed as

Anesthesia, GeneralLaryngeal MasksOropharynxAdultAgedFemaleHeadHumansMaleMiddle AgedPostoperative ComplicationsPressureProspective StudiesRotationAirway head and neck position laryngeal mask airway i-gel OLP

Identifiers

PMID40963146
PMCPMC12445029

What OpenQuestion holds

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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.