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Effects of Exhalation Valve on the Lack of Air and Exercise Tolerance in Patients With COPD

COPD Clinical Trial

Official title:
Effects of Expiratory Positive Airway Pressure on Dyspnea and Exercise Tolerance in Patients With Chronic Obstructive Pulmonary Disease

Clinical Trial Summary

The purpose of this study is to evaluate the effects of the application of Expiratory Positive Airway Pressure (EPAP) on Dynamic Hyperinflation, dyspnea and exercise tolerance in patients with Chronic Obstructive Pulmonary Disease (COPD).

Clinical Trial Description

Initially will be collected clinical and anthropometric data of the participants, and they are packaged in self-evaluation form. The evaluation of pulmonary function at rest (spirometry, body plethysmography and lung diffusion capacity for carbon monoxide) will be rescued from patient charts. When carried out for over six months, will be repeated by the researchers. Patients will conduct incremental CPET of 5-10W / min limited by symptoms (FEV1 <1L - 5W or FEV1> 1L - 10W) (Visit 1). After a period of 2-7 days the CPET will be performed submaximal with 75% of the peak load reached in the incremental CPET (visits 2 and 3). The application of EPAP (10cmH2O) via face mask (Vital RHDSON Signs®, New Jersey, USA) will be randomized with the help of opaque envelopes to be given in one visit. During the visit without EPAP will be maintained using the facial mask applied without resistance. IC serial measurements will be carried out before, during and immediately after the exercise. Participants will be instructed to maintain the use of long-acting bronchodilator as prescribed by the medical assistant usually before the methodological stages of the study. ;

Study Design

Allocation: Randomized, Intervention Model: Crossover Assignment, Masking: Double Blind (Subject, Caregiver, Outcomes Assessor), Primary Purpose: Supportive Care

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT02566915
Study type Interventional
Source Hospital de Clinicas de Porto Alegre
Contact
Status Enrolling by invitation
Phase N/A
Start date August 2015
Completion date December 2016
View Details
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