Oscillation Mechanics of the Respiratory System Asbestos Exposed: Early Diagnosis

Asbestosis Clinical Trial

Official title:

OSCILLATION MECHANICS OF THE RESPIRATORY SYSTEM ASBESTOS EXPOSED : Early Diagnosis

Clinical Trial Details — Status: Recruiting

Administrative data

• NCT number: NCT02280343
• Other study ID #: UERJ
• Status: Recruiting
• Phase: N/A
• First received: October 24, 2014
• Last updated: June 30, 2015
• Start date: March 2013
• Est. completion date: March 2016

Study information

• Verified date: June 2015
• Source: Rio de Janeiro State University
• Contact: Paula Sá, research
• Phone: 552123340705
• Email: paulamorisco[@]hotmail.com
• Is FDA regulated: No
• Health authority: Brazil: National Committee of Ethics in Research
• Study type: Observational

Clinical Trial Summary

Inhalation of dust containing asbestos results in a process of interstitial pulmonary fibrosis called asbestosis. The Forced Oscillation Technique (FOT) evaluates the respiratory mechanics describing resistive, elastic and inertial properties. We believe that this technique may contribute to the early diagnosis of asbestosis.

Description:

The aims of this study were (1) to use the FOT to analyze how respiratory mechanics is affected in patients with asbestos exposed, (2) to identify the best FOT parameters for the diagnosis of respiratory changes in these patients (3) Assess whether the presence of obstructive changes is associated with the smoking habit.The control group (CG) included 24 subjects with normal spirometric data and without a history of smoking or pulmonary disease formed by workers and students UERJ and FioCruz. Volunteers with asbestos exposure were from the Department of CESTEH/ FioCruz, totaling 24 exposed and 7 with diagnoses of asbestosis.

The diagnosis of asbestosis was established based on a history of substantial exposure to asbestos dusts and compatible radiological features, together with exclusion of other competing diagnoses.

The tests included a standardized questionnaire on respiratory symptoms, clinical evaluation; Plain radiography of the chest; FOT, plethysmography and spirometry, in that order.

Recruitment information / eligibility

• Status: Recruiting
• Enrollment: 2
• Est. completion date: March 2016
• Est. primary completion date: March 2016
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: Both
• Age group: N/A and older

Eligibility

Inclusion Criteria:

• diagnosis of asbestosis

Exclusion Criteria:

• other diseases

Study Design

Time Perspective: Cross-Sectional

Related Conditions & MeSH terms

• Asbestosis

Intervention

Other:
• evaluated lung function
lung function tests

Locations

Country	Name	City	State
Brazil	Paula Morisco de Sá	Rio de Janeiro

Sponsors (1)

Lead Sponsor	Collaborator
Rio de Janeiro State University

Country where clinical trial is conducted

Brazil, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	changes in pulmonary mechanicals		1 year	No