Evidence map›Paper›PMID 26495289›Full record

Trial reportBioMed research international2015

Comparison of five 2nd-generation supraglottic airway devices for airway management performed by novice military operators.

Tomas Henlin, Michal Sotak, Petr Kovaricek, Tomas Tyll, Lukas Balcarek, Pavel Michalek

Abstract readComparative StudyRandomized Controlled Trial
In one paragraph

Trial report in BioMed research international, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 1 pooled it
–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

17 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  4. Randomized Prospective Comparison of the SingularityJournal of clinical medicine · 2025
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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.

Tomas HenlinDepartment of Anesthesia and Intensive Medicine, 1st Medical Faculty and University Military Hospital, U Vojenske Nemocnice 1, 169 02 Prague, Czech Republic.
Michal SotakDepartment of Anesthesia and Intensive Medicine, 1st Medical Faculty and University Military Hospital, U Vojenske Nemocnice 1, 169 02 Prague, Czech Republic.
Petr KovaricekDepartment of Anesthesia and Intensive Medicine, 1st Medical Faculty and University Military Hospital, U Vojenske Nemocnice 1, 169 02 Prague, Czech Republic.
Tomas TyllDepartment of Anesthesia and Intensive Medicine, 1st Medical Faculty and University Military Hospital, U Vojenske Nemocnice 1, 169 02 Prague, Czech Republic.
Lukas BalcarekDepartment of Anesthesia and Intensive Medicine, 1st Medical Faculty and University Military Hospital, U Vojenske Nemocnice 1, 169 02 Prague, Czech Republic.
Pavel MichalekDepartment of Anesthesia and Intensive Medicine, 1st Medical Faculty and General University Hospital, U Nemocnice 2, 128 08 Prague, Czech Republic ; University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, UK.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesFive different second-generation supraglottic airway devices, ProSeal LMA, Supreme LMA, i-gel, SLIPA, and Laryngeal Tube Suction-D, were studied. Operators were inexperienced users with a military background, combat lifesavers, nurses, and physicians.

methodsThis was a prospective, randomized, single-blinded study. Devices were inserted in the operating room in low light conditions after induction of general anesthesia. Primary outcome was successful insertion on the first attempt while secondary aims were insertion time, number of attempts, oropharyngeal seal pressure, ease of insertion, fibre optic position of device, efficacy of ventilation, and intraoperative trauma or regurgitation of gastric contents.

resultsIn total, 505 patients were studied. First-attempt insertion success rate was higher in the Supreme LMA (96%), i-gel (87.9%), and ProSeal LMA (85.9%) groups than in the Laryngeal Tube Suction-D (80.6%) and SLIPA (69.4%) groups. Insertion time was shortest in the Supreme LMA (70.4 ± 32.5 s) and i-gel (74.4 ± 41.1 s) groups (p < 0.001). Oropharyngeal seal pressures were higher in the Laryngeal Tube Suction-D and ProSeal LMA groups than in other three devices.

conclusionsMost study parameters for the Supreme LMA and i-gel were found to be superior to the other three tested supraglottic airway devices when inserted by novice military operators.

Indexed as

Laryngeal MasksAdultAgedAged, 80 and overAirway ManagementClinical CompetenceCzech RepublicDouble-Blind MethodEquipment DesignEquipment Failure AnalysisFemaleHumansMaleMiddle AgedMilitary MedicineMilitary Personnel

Identifiers

PMID26495289
PMCPMC4606395

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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.