Chest
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Randomized Controlled Trial
Short-term effects of supplemental oxygen on 6-minute walk test outcomes in COPD patients - a randomized, placebo-controlled, single-blind, cross-over trial.
The acute effect of supplemental oxygen during exercise has been shown to differ largely among patients with COPD. It is unknown what factors influence oxygen response. ⋯ In contrast to patients with NOX, patients with HYX and EIH generally benefit from supplemental oxygen by increasing exercise capacity. However, less than one-half of patients reached the threshold of clinically relevant improvements. These oxygen responders were characterized by significantly lower exercise capacity levels.
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Randomized Controlled Trial
Improved cough and cough-specific quality of life in patients treated for scleroderma-related interstitial lung disease (SSc-ILD): Results of Scleroderma Lung Study II.
Cough is a common symptom of scleroderma-related interstitial lung disease (SSc-ILD), but its relationship to other characteristics of SSc-ILD, impact on cough-specific quality of life (QoL), and response to therapy for SSc-ILD have not been well studied. ⋯ FC occurs commonly in SSc-ILD, correlates with both the presence and severity of GERD and ILD at baseline, and declines in parallel with improvements in both ILD and GERD over a 2-year course of therapy. Frequent cough might serve as a useful surrogate marker of treatment response in SSc-ILD trials.