Activity of Inspiratory Muscles With the Use of Positive Pressure in Patients With Chronic Obstructive Pulmonary Disease

September 25, 2011 updated by: Dannuey Machado Cardoso, Hospital de Clinicas de Porto Alegre

Inspiratory Muscle Recruitment in COPD Patients With the Use of Expiratory Positive Airways Pressure

The objective is to evaluate whether the use of expiratory positive airway pressure (EPAP) reduces the electrical activity of the sternocleidomastoid muscle and enhances the action of the muscle in the patient parasternal ported from Chronic Obstructive Pulmonary Disease. Noting also, if the set pressure level (10 or 15 cmH2O) affects this relationship.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

The chronic obstructive pulmonary disease (COPD) is characterized by chronic obstruction to airflow, which leads to respiratory muscle overload and greater activation of accessory muscles of respiration, especially those active in the inspiratory phase. It is believed that the positive expiratory pressure (EPAP) reduces respiratory work, producing less activation of these muscles. Thus, we evaluate the behavior of the electrical activity of inspiratory muscles of COPD patients in response to application of expiratory positive airway pressure (EPAP), and to observe the influence of pressure level in inspiratory muscle recruitment. This will be implemented for a clinical single blinded trial (blinded to gauge the outcome) developed in the Department of Pneumology, Hospital de Clinicas de Porto Alegre (HCPA). Will be evaluated in COPD patients with a clinical diagnosis of pathology, and of both genders and should be aged between 40 and 70 years. In a first day will be collected anthropometric data, performed the lung function test for the staging of pathology and muscle strength testing. These same individuals will return to evaluate the electromyographic activity of sternocleidomastoid (SCM), and parasternal, both from the right hemisphere. This evaluation will consist in the measurement during breathing at rest (control), with the implementation of EPAP mask 10 or 15 cmH2O (state intervention) and 10 minutes after its removal. To test the lung function will be assessed using a spirometer and the lung capacity compared to the predicted in literature. As the electrical activity of muscle, will be observed the percentage of activation obtained for the highest activity (% RMS). Thus, it is expected that the implementation of EPAP promotes reduction of the electrical activity of muscle ECM and leverage the action of the parasternal muscle, affected by dynamic hyperinflation. It is also hoped that the use of blood pressure level of 15 cmH2O, compared to 10 cmH2O, the leverage effect of EPAP on the muscles of interest. The surface electromyographic evaluation is a method of relatively inexpensive and noninvasive, and is effective in evaluating the electrical potential that lies on the muscle membrane. So, will describe the effect of EPAP on the inspiratory muscles, which will be important to guide treatment of COPD patients using positive airway pressure therapy.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Anticipated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
40

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

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

Study Locations

  • Brazil
    • Rio Grande do Sul
      • Porto Alegre, Rio Grande do Sul, Brazil, 90040-060
        • Federal University of Rio Grande do Sul
      • Porto Alegre, Rio Grande do Sul, Brazil, 90035-903
        • HCPA - Hospital of Clinicas of Porto Alegre
      • Santa Cruz do Sul, Rio Grande do Sul, Brazil, 96815-900
        • University of Santa Cruz do Sul

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

40 years to 70 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Diagnosis of COPD in stage II or III according to classification of the Global Initiative for Chronic Obstructive Lung Disease (GOLD);
  • Signing the consent form;
  • Stability of clinical pathology, with no signs of exacerbation in the 30 (thirty) days prior to the inclusion in the study.

Exclusion Criteria:

  • Individuals would use artificial airway;
  • Hemodynamic instability;
  • Body mass index (BMI) above the values considered as obese (> 30Kg/m2).

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

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Active Comparator: Group I
This group will use a pressure level of 10 cmH2O.
Device: Expiratory positive airway pressure (EPAP) by face mask.
Implementation of the EPAP as group pressure, 10 or 15 cmH2O, for 20 minutes then evaluated the electromyographic activity of muscles and sternocleidomastoid parasternal the tenth and twentieth minutes of your application.
Other Names:
  • PEP-mask
Active Comparator: Group II
This group will use a pressure level of 15 cmH2O.
Device: Expiratory positive airway pressure (EPAP) by face mask.
Implementation of the EPAP as group pressure, 10 or 15 cmH2O, for 20 minutes then evaluated the electromyographic activity of muscles and sternocleidomastoid parasternal the tenth and twentieth minutes of your application.
Other Names:
  • PEP-mask

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Electromyographic activity of muscles and sternocleidomastoid parasternal
Time Frame: 20 minutes
An average baseline, before the use of expiratory positive airway pressure (EPAP) to be compared with two-mediated during the 20 minutes of application of EPAP and 10 minutes after its removal.
20 minutes

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Hospital de Clinicas de Porto Alegre

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Sérgio S Menna Barreto, Dr, Hospital of Clinicas of Porto Alegre

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
November 1, 2009

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
August 1, 2011

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
September 1, 2011

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
April 26, 2010

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 26, 2010

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
April 27, 2010

Study Record Updates

Last Update Posted (Estimate)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
September 27, 2011

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 25, 2011

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
September 1, 2011

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 09-500

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.

Clinical Trials on Chronic Obstructive Pulmonary Disease (COPD)

Clinical Trials on Expiratory positive airway pressure (EPAP) by face mask.

Search Similar Trials

Sponsors and Collaborators

Medical Conditions

Drug Interventions

Conditions

Rare Diseases

Drug Interventions

Dietary Supplements

Sponsor/Collaborators

Locations

Cookie Settings

We use cookies to ensure that we give you the best experience on our website. For more details carefully read our Privacy and Cookies Policy. ...>>>You can change your preferences or withdraw your consent at any time by deleting the cookies from your website or computer as described in the policy. Please accept it and choose your preferences by ticking the corresponding boxes in the "Manage Settings" section below. Please carefully read our Terms of Service before you proceed with using any part of this website.
«Manage Settings