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Usefulness of Light Wand-guided Insertion of Flexible Reinforced Laryngeal Mask Airway

A

Ajou University School of Medicine

Status

Completed

Conditions

Laryngeal Mask Airway

Treatments

Device: light wand

Study type

Interventional

Funder types

Other

Identifiers

NCT03224611
AJIRB-MED-OBS-17-108

Details and patient eligibility

About

Flexible LMA (Laryngeal mask airway) is very useful for variable situation but it is hard to insert in correct position because of it's flexible structure. Especially in classical way of manual LMA insertion, when the index finger could not guide the flexible LMA to the optimal position, we could not guarantee the correct position of the LMA. Therefore several studies have been investigated to improve this.

The light wand is a kind of stylet which have a light on the tip. Recently some studies demonstrated the usefulness of the light wand which could be used for indicating correct position of the LMA. We hypothesised there will be two advantages if the light wand is used as a stylet of the flexible LMA. First the stylet could support the mildness of the flexible LMA, and second the lightness could confirm the correct position of the flexible LMA.

Enrollment

54 patients

Sex

All

Ages

19 to 75 years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  • The patient need general anesthesia using LMA and belonged to the ASA(American society of Anesthesiologist) class I or II

Exclusion criteria

  • The patient who has URI(upper respiratory infection) symptom within 14 days or
  • The patient's BMI(body mass index) exceeds 35 kg/m2
  • The patient has severe GERD(gastroesophageal reflux disease) or hiatus hernia
  • The patient who has any contraindication for LMA insertion

Trial design

Primary purpose

Other

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

Double Blind

54 participants in 2 patient groups

Control group
No Intervention group
Description:
The flexible LMA is inserted using "index finger technique"
Light wand group
Active Comparator group
Description:
The flexible LMA is inserted using light wand as a stylet
Treatment:
Device: light wand

Trial contacts and locations

1

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Data sourced from clinicaltrials.gov

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