A comparison of choosing the optimal size of Streamlined liner of Pharyngeal Airway(SLIPA) estimated by patient's height and the width of thyroid cartilage in normal adults

A comparison of choosing the optimal size by measuring OLP(oropharyngeal leakage pressure) and inspiratory and expiratory tidal volume, of Streamlined liner of Pharyngeal Airway(SLIPA) estimated by patient's height and the width of thyroid cartilage in normal adults undergoing minor surgery in 2 hours with supine position.

Status

Not yet recruiting

Phases

Unknown

Study type

Interventional

Source

ANZCTR

Registry ID

ACTRN12612000253808

Enrollment

Registered

2012-02-29

Start date

2012-03-01

Completion date

Unknown

Last updated

2020-01-13

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

Conditions

None listed

Brief summary

SLIPA is an widespread supraglottic airway. But, the size selection criteria provided from manufacturer is inaccurate and the height is overlapped. Therefore we performed a study to find the factors influencing selection of the optimal size of Streamlined liner of Pharyngeal Airway(SLIPA) in normal adults, especially the width of thyroid.

Interventions

Sizing is performed before induction of anesthesia.It takes approximately 5 minutes. The SLIPA size is chosen by matching the width across the thyroid cartilage with that of the bridge of the SLIPA. Dimension is sized between left and right cornu of thyroid cartilage by palpation and matching the dimension at level the widest diameter of SLIPA bridge.

Study design

Allocation

Randomised controlled trial

Intervention model

Parallel

Primary purpose

Treatment

Masking

Open (masking not used)

Eligibility

Sex/Gender

All

Age

20 Years to 65 Years

Healthy volunteers

Inclusion criteria

ASA 1,2 patients undergoing minor surgery in 2 hours with supine position. upper and lower limbs surgery and transurethral approach, for example.

Exclusion criteria

obesity (body mass index > 30 kg m–2), existing respiratory disease, history of upper gastrointestinal surgery, hiatus hernia, gastroesophagus reflux disease, gastric ulcer, risk of aspiration or regurgitation.

Outcome results