Device for Performing Spirometry in Total Laryngectomized Patients

Area of Science:

• Pulmonology
• Biomedical Engineering
• Medical Device Design

Background:

• Patients undergoing total laryngectomy (TL) often have smoking-related lung disease.
• Standard spirometry requires oral breathing, posing a challenge for patients with tracheostomies.
• Accurate lung function assessment is crucial for post-TL follow-up.

Purpose of the Study:

• To develop and validate a novel device for spirometry testing in total laryngectomy patients.
• To enable lung function assessment through a tracheostoma.

Main Methods:

• A biocompatible, 3D-printed device was designed for hermetic connection between the spirometer and tracheostoma.
• The device was tested on five patients who had undergone total laryngectomy.
• Patient comfort, safety, and diagnostic validity were assessed.

Main Results:

• The novel tracheostoma spirometry device was successfully used in five post-TL patients.
• The device was found to be comfortable and safe for patients.
• The results indicated the device is valid for diagnostic purposes.

Conclusions:

• A 3D-printed device facilitates spirometry testing in total laryngectomy patients via their tracheostoma.
• This innovation allows for essential lung function monitoring in a previously underserved patient group.
• The device offers a comfortable, safe, and diagnostically valid solution for respiratory assessment post-TL.