Chronic Obstructive Pulmonary Disease
Conditions
Keywords
COPD, Hypertonic saline, Quality of life, Dyspnoea.
Brief summary
The use of inhaled hypertonic saline has been extensively documented in asthma, bronchiectasis, cystic fibrosis and COPD as method of bronchial challenge and sputum induction, but studies that evaluated others endpoints are required. The objective of this study was to analyse the effects of inhaling hypertonic saline compared with placebo with respect to functional exercise capacity, dyspnoea and quality of life. In a double-blind randomised parallel placebo-controlled trial, conducted at the Clínicas Integradas of the Evangelical Faculty of Paraná,sixty-eight patients (age 67 ± 6.5 years; FEV1 38.9 ± 16.2 predicted) were randomised to inhale 3% hypertonic saline (n=34) or placebo (n=34), combined with a program of exercise, three times a week, for 8-weeks.
Detailed description
Background: The use of inhaled hypertonic saline has been extensively documented in asthma, bronchiectasis, cystic fibrosis and COPD as method of bronchial challenge and sputum induction, but studies that evaluated others endpoints are required. Objective: To analyse the effects of inhaling hypertonic saline compared with placebo with respect to functional exercise capacity, dyspnoea and quality of life. Design and Setting: This was a double-blind randomised parallel placebo-controlled trial, conducted at the Clínicas Integradas of the Evangelical Faculty of Paraná. Methods: sixty-eight patients (age 67 ± 6.5 years; FEV1 38.9 ± 16.2 predicted) were randomised to inhale 3% hypertonic saline (n=34) or placebo (n=34), combined with a program of exercise, three times a week, for 8-weeks. Results: After the 8-weeks the treatment period, both groups showed significant changes in functional exercise capacity (p\<0,001), dyspnoea (p\<0,001) and quality of life. When compared both groups, there was a significant improvement in placebo group in functional exercise capacity (p\<0,001). Conclusion: the present study concluded that inhaling HS reduces the functional capacity, compared to placebo and being associated with the appearance of coughs and bronchial spasms.
Interventions
OTHERhypertonic saline
inhaled hypertonic saline (at a dose of 5 ml of a 3% solution) three times a week, combined with a program of physical exercises.
Sponsors
Federal University of São Paulo
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Investigator, Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
40 Years to 75 Years
Healthy volunteers
No
Inclusion criteria
* Patients with COPD diagnosis based on clinical findings and spirometry (FEV1 \< 60% predict) according to American Thoracic Society20 clinically stable for at least the last month * aged between 40 and 75 years old * ex-smokers * without severe and/or unstable heart disease or any other pathologic conditions that could impair physical activities (e.g., cerebrovascular diseases and rheumatism), were included. * Respiratory medication was permitted, prior and throughout the duration of the study, such as bronchodilators and corticosteroids.
Exclusion criteria
* Patients with unstable lung disease (as evidenced by the administration of intravenous antibiotics for four weeks before screening) * evidence of reactive airways (FEV1 ≥ 20 percent response to bronchodilatation or clinical diagnosis of asthma) were excluded
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Functional exercise capacity | measured by the 6-minute walking distance (6MWD) test |
Secondary
| Measure | Time frame |
|---|---|
| Dyspnoea | measured by the Medical Research Council dyspnoea score |
Outcome results
None listed