Trial reportBMC anesthesiology2019
Conditions for laryngeal mask airway placement in terms of oropharyngeal leak pressure: a comparison between blind insertion and laryngoscope-guided insertion.
Trial report in BMC anesthesiology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 23 papers.
What it found
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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.
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.
Comparison of Airway Placement Conditions and Postoperative Effects of Laryngoscope-guided Laryngeal Mask Placement Methods in Sniffing Position in Geriatric Edentulous Patients
Comparison of the Airway Sealing Pressures for Three Different Placement Techniques When Using Lma Proseal in Children
Who cites it
23 citing papers in PubMed, 38 citations in OpenAlex.
- Comparison of oropharyngeal leak pressure between the SaCoVLM™ video laryngeal mask and LMA supreme in adult elective surgery patients: a prospective randomized controlled trial.BMC anesthesiology · 2025Trial
- Comparison of sacovlm™ video laryngeal mask-guided intubation and fastrach combined with flexible bronchoscopy-guided intubation -a prospective study.BMC anesthesiology · 2025Trial
- Comparison between the standard method and the 30° curved tongue depressor-aided technique for insertion of a laryngeal mask airway: a randomized controlled trial.BMC anesthesiology · 2024Trial
- Guided vs. non-guided insertion of Ambu AuraGain™ in edentulous patients.Der Anaesthesist · 2021Trial
- Comparison of videolaryngoscope-guided versus standard digital insertion techniques of the ProSeal™ laryngeal mask airway: a prospective randomized study.BMC anesthesiology · 2019Trial
- Evaluation of the SaCoVLM, a novel third-generation video laryngeal mask: a prospective observational pilot study.BMC anesthesiology · 2026Observational
- Comparison of Laryngoscope-Guided Insertion and Standard Blind Insertion of the Laryngeal Mask Airway: A Systematic Review and Meta-Analysis.Anesthesiology research and practice · 2025Review
- Comparison of patient outcomes between video and non-video laryngeal mask airway insertion performed by novices: a prospective randomized controlled study.Frontiers in medicine · 2025Article
- Comparative analysis of LMA BlockbusterIndian journal of anaesthesia · 2024Article
- How does head position affect laryngeal vision with a video laryngeal mask airway?Frontiers in medicine · 2024Article
- Comparison of four different techniques of i-gel insertion by anaesthesia trainees in children undergoing daycare surgery: A single-blind, randomised, comparative study.Indian journal of anaesthesia · 2023Article
- New Devices, Innovative Technologies, and Non-Standard Techniques for Airway Management: A Narrative Review.Healthcare (Basel, Switzerland) · 2023Review
- Comparison of Clinical Performance of C-MAC Video Laryngoscope Guided vs Blind Placement of I-Gel® in Paediatric Patients: A Randomized Controlled Open-Label Trial.Turkish journal of anaesthesiology and reanimation · 2023Article
- Supraglottic Airway Devices with Vision Guided Systems: Third Generation of Supraglottic Airway Devices.Journal of clinical medicine · 2023Review
- Comparison of McGrath videolaryngoscope-assisted insertion versus standard blind technique for flexible laryngeal mask airway insertion in adults.Singapore medical journal · 2022Article
- Comparison of the efficacy of Macintosh laryngoscope-guided insertion of I-gel™ with the conventional blind insertion technique - A randomised study.Indian journal of anaesthesia · 2022Article
- Preliminary evaluation of SaCoVLM™ video laryngeal mask airway in airway management for general anesthesia.BMC anesthesiology · 2022Observational
- Wooden Disposable Tongue Depressor: Can Facilitate Appropriate Reinforced Laryngeal Mask Insertion? A Randomized Controlled Trial.Medical journal of the Islamic Republic of Iran · 2022Article
- Article
- Impact of visually guided versus blind techniques of insertion on the incidence of malposition of AmbuIndian journal of anaesthesia · 2020Article
Corrections and comments
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundInsertion under laryngoscopic guidance has been used to achieve ideal positioning of the laryngeal mask airway (LMA). However, to date, the efficacy of this technique has been evaluated only using fiberoptic evaluation, and the results have been conflicting. Other reliable tests to evaluate the efficacy of this technique have not been established. Recently, it has been suggested that the accuracy of LMA placement can be determined by clinical signs such as oropharyngeal leak pressure (OPLP). The aim of this study was to assess the efficacy of LMA insertion under laryngoscopic guidance using OPLP as an indicator.
methodsAfter approved by the institutional ethics committee, a prospective comparison of 100 patients divided into 2 groups (50 with blind technique and 50 with the laryngoscope technique) were evaluated. An LMA (LarySeal™, Flexicare medical Ltd., UK) was inserted using the blind approach in the blind insertion group and using laryngoscopy in the laryngoscope-guided insertion group. The OPLP, fiberoptic position score, whether the first attempt at LMA insertion was successful, time taken for insertion, ease of LMA insertion, and adverse airway events were recorded.
resultsData were presented as mean ± standard deviation. The OPLP was higher in the laryngoscope-guided insertion group than in the blind insertion group (21.4 ± 8.6 cmH
conclusionLaryngoscope-guided insertion of LMA improves the airway seal pressure compared to blind insertion. Our result suggests that it may be a useful technique for LMA insertion.
trial registrationcris.nih.go.kr , identifier: KCT0001945 (2016-06-17).
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Registered trials
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.