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Correlation and variation of cuff inflating volumes and pressures in the adult laryngeal mask airways

Correlation and variation of cuff inflating volumes and pressures in the adult laryngeal mask airways

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
TCTR
Registry ID
TCTR20150602001
Enrollment
Unknown
Registered
2015-06-02
Start date
2015-06-08
Completion date
Unknown
Last updated
2026-08-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Hyperinflation of laryngeal mask airway cuff Laryngeal mask airway Laryngeal mask airway cuff Intracuff pressure Inflating volume

Interventions

After insertion of LMA&#44
the cuff was inflated with 5&#45
ml increments of air up to the maximum recommended volume. After each 5&#45
ml intracuff pressure was measured and the volume of air that generated intracuff pressure 60 cmH2O was recorded. ,After insertion of LMA&#44

Sponsors

Ramathibodi Hospital
Lead Sponsor
Ramathibodi Hospital
Collaborator

Eligibility

Sex/Gender
All
Age
18 Years to 90 Years

Inclusion criteria

Inclusion criteria: 1.The patients who were older than 18 years old 2.Anesthetized patients who need LMA during surgery 3.The patients who NPO more than 6 hours before surgery 4.The patients who have body weight 30-70 kilograms (30-50 kg for LMA size 3, 51-70 kg for LMA size 4)

Exclusion criteria

Exclusion criteria: 1.The patients with abnormal respiratory and upper gastrointestinal tract 2.The patients with risk of aspiration 3.The patients with body mass index > 30 4.The patients who can not be inserted LMA more than 2 attempts

Design outcomes

Primary

MeasureTime frame
The volume of air that generated intracuff pressure 60 cmH2O Anticipated date is December 2015 Data was collected and recorded by physicians and nurses working in the OR

Secondary

MeasureTime frame
The intracuff pressure after each 5-ml increments of air inflation Anticipated date is December 2015 Data was collected and recorded by physicians and nurses working in the OR

Countries

Thailand

Contacts

Public ContactJittiya Watcharotayangul

Ramathibodi Hospital

now_cool@hotmail.com+66818400486

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 9, 2026