Application of Digitized Respiratory Sounds for Confirmation of the Position of the Balloon of Endobronchial Blockers

Respiratory Sounds Clinical Trial

Official title:

The Application of the Spectral Analysis and Characteristic Parameters of Digitized Respiratory Sounds in the Confirmation of the Position of the Balloon of Endobronchial Blockers - an Observational Study

Clinical Trial Details — Status: Not yet recruiting

Administrative data

• NCT number: NCT03061695
• Other study ID #: 201611044RINA
• Status: Not yet recruiting
• Phase: N/A
• First received: February 1, 2017
• Last updated: February 19, 2017
• Start date: February 28, 2017
• Est. completion date: December 31, 2017

Study information

• Verified date: January 2017
• Source: National Taiwan University Hospital
• Contact: Hui-Hsun Huang, MD, PhD
• Phone: +886-927-651-602
• Email: huihsunhuang[@]gmail.com
• Is FDA regulated: No
• Study type: Observational

Clinical Trial Summary

This observation study is to evaluate the application of the spectral analysis and characteristic parameters of digitized respiratory sounds in the confirmation of the position of the balloon of endobronchial blockers

Description:

This is an observational study. We will recruit 30 patients who are scheduled for thoracic surgery under general anesthesia with tracheal intubation and need endobronchial blocker for unilateral lung ventilation during the operation. The standard procedures for confirming the position of the balloon of the endobronchial blocker, including the stethoscopic inspection and the fiberoptic examination, will be performed as routine practice. But in our study, besides the above routine practice, a microphone will be connected to the distal end of the stethoscope (the microphone will not contact directly with the patients) during the checking procedure to record the breathing sound into a digital computer as electronic files. These breathing sound files will be analyzed in a later time with spectral transformation and the characteristics are extracted. These digital signal processing results will be compared with the results of fibroptic exmination and the stethoscopic auscultation in the correct rate of diagnosing the position of the endobronchial balloon. The aim of this study is to examine the usefulness of the spectral parameters of the digitalized breathing sound in confirming the position of the endobronchial blocker balloon.

Recruitment information / eligibility

• Status: Not yet recruiting
• Enrollment: 30
• Est. completion date: December 31, 2017
• Est. primary completion date: December 31, 2017
• Gender: All
• Age group: 20 Years and older

Eligibility

Inclusion Criteria:

• Thoracic disease patients who are scheduled for thoracic surgery and lung isolation requiring endobronchial blocker placement during the surgery

• Adult patients (no younger than 20 years old)

Exclusion Criteria:

• Patients with significant thoracic diseases which result in abnormal respiratory sounds

Related Conditions & MeSH terms

• Respiratory Sounds

Locations

Country	Name	City	State
n/a

Sponsors (1)

Lead Sponsor	Collaborator
National Taiwan University Hospital

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Position of the endobronchial blocker	Position of the ballon of the endobronchial blocker (cm)	1 day