Prospective randomised trial comparing Parker tip and Magill tip endotracheal tubes for cricothyroidotomy

Prospective randomised trial of anaesthetists comparing Parker tip and Magill tip endotracheal tubes for insertion into the trachea over a bougie.

Status

Completed

Phases

Unknown

Study type

Interventional

Source

ANZCTR

Registry ID

ACTRN12611001121954

Enrollment

Registered

2011-10-27

Start date

2011-11-17

Completion date

2011-11-17

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

The aim of this study is to simulate cricothyroidotomy using two different types of endotracheal tube, a Magill (rigid) tip and a Parker (soft) tip. The procedure is called a Scalpel bougies technique, where a scalpel stab incision is made through the skin over the cricothyroid membrane. A bougie ( a long hollow tube guide) is inserted through this incision into the treachea, and an endotracheal tube is then advanced over the bougie into the trachea. This endotracheal tube is used to administer life saving oxygen. This technique is only used in an extreme emergency when a patients airway has obstructed, and a doctor is unable to ventilate or intubate any other way. The procedure will be performed on cadavers, and the participants will be specialists anaesthetists. The study will be a prospective randomised controlled trial.

Interventions

Emergency cricothyroidotomy using a scalpel bougie endotracheal tube technique will be performed. This technique involves a transverse stab incision through the skin and cricothyroid membrane or trachea. Once inserted, the scalpel is rotated 90 degrees creating a triangular hole through which a bougie can be inserted down the trachea. This bougie is then used to railroad an endotracheal tube. This trial will compare the Magill tip (firm) and the Parker tip (soft) endotracheal tubes. Three anaesthetists will perform this procedure on 9 cadavers, and will use equal numbers of Magill or Parker tip tubes in a randomised fashion using a crossover design. Each cadaver will be used three times, with one cricothyroid and two tracheal incisions resulting in a total of 27 procedures.

Study design

Allocation

Randomised controlled trial

Intervention model

Crossover

Primary purpose

Educational / counselling / training

Masking

Open (masking not used)

Eligibility

Sex/Gender

All

Age

30 Years to 40 Years

Healthy volunteers

Yes

Inclusion criteria

Specialist anaesthetists of at least two years experience

Exclusion criteria

Completed previous training or performed a cricothyroidotomy in the last two years.

Outcome results