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Effect of Neuromuscular Blockade on Video Laryngeal Mask Airway Ventilation

15. september 2026 opdateret af: Seok Kyeong Oh, Korea University Guro Hospital

The Relationship Between the Degree of Neuromuscular Blockade and the Conditions of Laryngeal Mask Ventilation: A Prospective Randomized Double-Blind Study

This prospective, randomized, double-blind study aims to evaluate the effect of different degrees of neuromuscular blockade on the performance of a video laryngeal mask airway (LMA) during general anesthesia. Participants will be randomly assigned to receive rocuronium at 0, 0.3, or 0.6 mg/kg, corresponding to 0, 1, or 2 times the ED95, respectively. The primary outcome is oropharyngeal leak pressure measured after LMA insertion. Secondary outcomes include LMA insertion conditions, insertion time and number of attempts, laryngeal view, respiratory parameters, and postoperative airway-related complications.

Studieoversigt

Status

Ikke rekrutterer endnu

Betingelser

Intervention / Behandling

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

96

Fase

  • Fase 4

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Voksen
  • Ældre voksen

Tager imod sunde frivillige

Ingen

Beskrivelse

Inclusion Criteria:

  • Scheduled for elective surgery under general anesthesia with a video
  • laryngeal mask airway
  • Expected duration of surgery less than 3 hours
  • Surgery performed in the supine position
  • Provision of written informed consent

Exclusion Criteria:

  • Symptoms or signs of upper respiratory tract infection
  • Increased risk of pulmonary aspiration
  • Anticipated difficult airway
  • Limited mouth opening (<3 cm)
  • Limited head or neck movement
  • Mallampati class IV
  • Body mass index ≥35 kg/m²

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Andet
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Aktiv komparator: 0 × ED95 Group
Participants receive rocuronium 0 mg/kg (0 × ED95) before video LMA insertion.
Andet: Normal Saline (Rocuronium 0 mg/kg)
Normal saline is administered intravenously as the control study drug before video LMA insertion.
Aktiv komparator: 1 × ED95 Group
Participants receive rocuronium 0.3 mg/kg (1 × ED95) before video LMA insertion.
Medicin: Rocuronium 0.3 mg/kg
Rocuronium 0.3 mg/kg (1 × ED95) is administered intravenously before video LMA insertion.
Aktiv komparator: 2 × ED95 Group
Participants receive rocuronium 0.6 mg/kg (2 × ED95) before video LMA insertion.
Medicin: Rocuronium 0.6 mg/kg
Rocuronium 0.6 mg/kg (2 × ED95) is administered intravenously before video LMA insertion.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Oropharyngeal Leak Pressure (OLP)
Tidsramme: 5 minutes after successful video LMA insertion
Oropharyngeal leak pressure will be measured 5 minutes after successful video LMA insertion and compared among the three neuromuscular blockade groups. OLP is expressed in cmH2O.
5 minutes after successful video LMA insertion

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Oropharyngeal Leak Pressure at Later Time Points
Tidsramme: 15 and 30 minutes after successful video LMA insertion
15 and 30 minutes after successful video LMA insertion
Number of LMA Insertion Attempts
Tidsramme: During anesthetic induction before surgery, assessed for up to 5 minutes
The number of attempts required for successful video LMA insertion will be recorded. A maximum of two insertion attempts is permitted. Failure will be recorded if successful insertion is not achieved after two attempts.
During anesthetic induction before surgery, assessed for up to 5 minutes
LMA Insertion Time
Tidsramme: During anesthetic induction before surgery, assessed for up to 5 minutes
LMA insertion time will be measured in seconds from mouth opening to confirmation of the first capnographic waveform.
During anesthetic induction before surgery, assessed for up to 5 minutes
Laryngeal View Grade
Tidsramme: Immediately after successful video LMA insertion
The laryngeal view obtained through the video LMA will be graded on a 4-point scale. The need for real-time adjustment and any change in laryngeal view after adjustment will also be recorded.
Immediately after successful video LMA insertion
Neuromuscular Blockade at LMA Insertion
Tidsramme: Immediately before video LMA insertion
Neuromuscular response will be recorded immediately before video LMA insertion using train-of-four monitoring, including TOF count and/or quantitative twitch response according to the available monitor.
Immediately before video LMA insertion
Number of Participants With Sore Throat, Hoarseness, and Dysphagia
Tidsramme: Postoperatively in the PACU and at 24 hours after surgery
The presence or absence of sore throat, hoarseness, and dysphagia will be assessed separately for each participant.
Postoperatively in the PACU and at 24 hours after surgery

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Korea University Guro Hospital

Samarbejdspartnere

Korean Society for Airway Management

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Anslået)

7. september 2026

Primær færdiggørelse (Anslået)

28. februar 2027

Studieafslutning (Anslået)

30. august 2027

Datoer for studieregistrering

Først indsendt

4. september 2026

Først indsendt, der opfyldte QC-kriterier

15. september 2026

Først opslået (Faktiske)

18. september 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

18. september 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

15. september 2026

Sidst verificeret

1. september 2026

Mere information

Begreber relateret til denne undersøgelse

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • 2026GR0199

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