Hand Position for Stylet Removal During Tracheal Intubation

Study Overview
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Brief Summary
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Investigators compared the tube movement between two situations; the one was that the practitioner's hand holding the tracheal tube was placed in the air, and the other was that the hand was placed on the manikin's cheek, while two residents took the roles of the practitioner and the assistant in tracheal intubation with a stylet for a manikin.

Detailed Description
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Residents who accepted spontaneous participation were randomly combined into teams of two each. For two residents in a team, each sequentially took on the role of a practitioner and once as an assistant for tracheal intubations by changing the position of the hand holding the tube; one time, the position of the hand holding the tube was placed in the air, and the other time, the position of the hand holding the tube was placed on the cheek of the manikin. For the assistant role, residents performed stylet removal with two hands. Investigators filmed a video of the tube movement while the assistant pulling up the stylet at 1/8x speed. While analyzing the captured videos, it was measured how much the tube held by the intubation practitioner went in front or how far back during the process of pulling the stylet.

Official Title
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The Effect of Practitioner's Hand Position on Tracheal Tube Movement While Removal of Stylet During Tracheal Intubation

Conditions
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Manikin

Intervention / Treatment
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* Procedure: hand position


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: residents in the department of Anesthesia and Pain Medicine Exclusion Criteria: refusal for participation
Sexes Eligible for Study
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All

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| in the air<br>the position of the practitioner's hand holding the tube was placed in the air while the assistant pulling back the stylet. | Procedure: hand position<br>* For tracheal intubation with a stylet for a manikin, one time, the position of the hand holding the tube was placed in the air, and the other time, the position of the hand holding the tube was placed on the cheek of the patient, while the assistant pulling back the stylet.<br>|
| on the cheek of a manikin<br>the position of the practitioner's hand holding the tube was placed on the cheek of a manikin while the assistant pulling back the stylet. | Procedure: hand position<br>* For tracheal intubation with a stylet for a manikin, one time, the position of the hand holding the tube was placed in the air, and the other time, the position of the hand holding the tube was placed on the cheek of the patient, while the assistant pulling back the stylet.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| tube movement distance | tube movement distance in the process of pulling out the stylet by the assistant | procedure (at the time when the assistant pulling back the stylet) |