Simulated Comparison of Standard Versus Rotational Laryngeal Mask Airway Insertion in Novice Anaesthesiologists. (LMA)

Aga Khan University

Status: Completed

Conditions: Training Group, Sensitivity

Treatments: Device: LMA insertion with standard technique

Study type: Interventional

Funder types: Other

Identifiers

NCT05544838

2022-6256-22361

Details and patient eligibility

About

The primary objective of study was to compare insertion ease by standard and rotational LMA insertion technique on basis of LMA insertion attempts and insertion time duration. The secondary objective of study was to analyse impact of prior information for airway device, insertion techniques, general or specific work experience in airway management with ease of both insertion techniques. And, tertiary objective of study was to analyse the trainee's preference insertion technique on basis of learning method and practical adaptability.

Hypothesis:

The rotational LMA insertion technique is easy to understand and practice than the standard LMA insertion technique at the beginning of airway management training among the novice anesthesiologists.

Hypothesis:

The rotational LMA insertion technique is easy to understand and practice than the standard LMA insertion technique at the beginning of airway management training among the novice anesthesiologists.

Full description

• LMA insertion attempts are the number of LMA insertion attempts with each study's insertion technique. The 10 insertion attempts will be performed with each insertion technique by trainees.
• LMA insertion time duration is the time taken to complete LMA insertion; from the holding of device till the confirmation of chest movement (artificial lungs inflation in manikin).
• The correlation of previous information for airway device, insertion techniques, general or specific work experience in airway management with the ease of both study's insertion techniques will be asked by participant's through the questionnaire at the start of study.
• The trainees will be asked at the end of study for preferred insertion method at novice level on the basis of learning method and practical conduct (user friendly)

Enrollment: 13 patients

Sex: All

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• First year anaesthesia trainee
• Using adult mannequin

Exclusion criteria

• Paediatric mannequin
• Participant's refusal

Trial design

Primary purpose: Prevention

Allocation: Randomized

Interventional model: Crossover Assignment

Masking: None (Open label)

---

13 participants in 2 patient groups

LMA with standard insertion technique

No Intervention group

Description:

Standard LMA insertion technique; LMA held like a pen and index finger placed at the junction of LMA tube and cuff. Index finger used to press LMA against hard palate and posterior pharyngeal wall until definite resistance felt at the base of hypopharynx. LMA then held with non- dominant hand and index finger removed.

Rotational LMA insertion technique

Experimental group

Description:

Rotational LMA insertion; LMA inserted like guedel airway insertion: LMA proximally grasped close to anaesthesia circuit attachment. Insertion was conducted with LMA cuff facing towards nose, hard palate and then advanced into the base of hypopharynx until resistance was felt. At this point, LMA rotated at 180 degree anti-clockwise and LMA tube black line positioned and confirmed on the nasal side.

Treatment:

Device: LMA insertion with standard technique