Oscillation Mechanics of the Respiratory System Asbestos Exposed: Early Diagnosis

June 30, 2015 updated by: Paula Morisco de Sá, Rio de Janeiro State University

OSCILLATION MECHANICS OF THE RESPIRATORY SYSTEM ASBESTOS EXPOSED : Early Diagnosis

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.

Study Overview

Status

Unknown

Conditions

Intervention / Treatment

Detailed 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.

Study Type

Observational

Enrollment (Anticipated)

2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

  • Brazil
      • Rio de Janeiro, Brazil, 20550-013
        • Recruiting
        • Paula Morisco de Sá
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Sampling Method

Probability Sample

Study Population

exposed to asbesto

Description

Inclusion Criteria:

  • diagnosis of asbestosis

Exclusion Criteria:

  • other diseases

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
changes in pulmonary mechanicals
Time Frame: 1 year
1 year

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Rio de Janeiro State University

Investigators

  • Principal Investigator: Paula Sá, research, Universidade do Estado do Rio de Janeiro:Brazil

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

March 1, 2013

Primary Completion (Anticipated)

March 1, 2016

Study Completion (Anticipated)

March 1, 2016

Study Registration Dates

First Submitted

October 24, 2014

First Submitted That Met QC Criteria

October 29, 2014

First Posted (Estimate)

October 31, 2014

Study Record Updates

Last Update Posted (Estimate)

July 1, 2015

Last Update Submitted That Met QC Criteria

June 30, 2015

Last Verified

June 1, 2015

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • UERJ

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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