An Investigation Into the Dispersion Pattern During Coughing and Open Nasopharyngeal Suction Using Various Barrier Devices

Completed

• Conditions: Airway Aspiration
• Interventions: Device: Enclosure barrier

• Registration Number: NCT06380023
• Lead Sponsor: North District Hospital

Brief Summary

The aim of the study is to examine the air dispersion pattern and the environmental influence of open airway suction in general ward setting. Secondly, the study is aimed at identifying a simple \& practical enclosure device in general ward. Suction will be performed in manikin in supine lying.

Nasopharyngeal suction will be performed by physiotherapist with working experience more than 1 years. Besides, surgical mask \& enclosure tent will be adopted as the enclosure barrier device in this study.

Research Question

1. To assess the extent of the environmental contamination during coughing and simulated airway suction

2. To measure the air particle count during coughing and simulated open airway suction.

3. To evaluate how effective the enclosure barrier in reducing the air particle dispersion during open airway suction.

Detailed Description

Not available

Study Timeline

• Study Start: 2022-09-01
• Primary Completion: 2024-03-03
• Study Completion: 2024-03-03
• Status Verified: 2024-04
• Study First Submitted: 2024-04-09
• Study First Submitted QC: 2024-04-17
• Last Update Submitted: 2024-04-17
• Study First Posted: 2024-04-23
• Last Update Posted: 2024-04-23

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 13

Inclusion Criteria

• physiotherapists with working experience more than one year

Exclusion Criteria

• physiotherapists with working experience less than one year

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Arm && Interventions

Group	Intervention	Description
coughing with suction covered by surgical mask	Enclosure barrier	Suction performed on manikin in simulated setting
coughing with suction covered by enclosure tent	Enclosure barrier	Suction performed on manikin in simulated setting

Primary Outcome Measures

Name	Time	Method
Air particle count	one minute	The calibrated sizes are 0.3, 0.5. 1.0, 2.0, 5.0 and 10 microns

Secondary Outcome Measures

Name	Time	Method
A fluorescent Dye	one minute	The extent and area of the fluorescent dye spreading are measured

Trial Locations

Locations (1)

North District Hospital; 🇭🇰 Hong Kong, Hong Kong