International journal of chronic obstructive pulmonary disease
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Int J Chron Obstruct Pulmon Dis · Jan 2009
The repeatability of interleukin-6, tumor necrosis factor-alpha, and C-reactive protein in COPD patients over one year.
Many of the systemic manifestations of chronic obstructive pulmonary disease (COPD) are mediated through increased systemic levels of inflammatory proteins. We assessed the long term repeatability of interleukin-6 (IL-6), tumor necrosis factor-alpha (TNF-alpha), and C-reactive protein (CRP) over one year and examined the relationships between these systemic markers in COPD. ⋯ Systemic inflammatory biomarkers IL-6, CRP, and TNF-alpha were moderately repeatable over a twelve month period in COPD patients. We have also shown that a robust and repeatable association between IL-6 and CRP exists.
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Int J Chron Obstruct Pulmon Dis · Jan 2009
Randomized Controlled Trial Comparative StudyDesensitization to dyspnea in COPD with specificity for exercise training mode.
Patients with chronic obstructive pulmonary disease (COPD) exhibit improved exercise capacity after physical training due to reconditioning and improved ventilatory efficiency. Other possible effects are improved ventilatory muscle function and desensitization to dyspnea. We compared general physical training (GPT), consisting of walking and stair climbing exercises, with inspiratory muscle training (IMT), consisting of targeted breathing through inspiratory resistances, in two groups with severe COPD. ⋯ Breathlessness by visual analog scale was reduced following 6-minute walks after GPT (P < 0.05) but not after IMT. Following maximal incremental tests, breathlessness scores were unchanged for both groups. COPD patients performing regular physical exercise report reductions in breathlessness which are specific to the exercise training mode.
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Int J Chron Obstruct Pulmon Dis · Jan 2009
Impact of frequency of COPD exacerbations on pulmonary function, health status and clinical outcomes.
COPD exacerbations are responsible for the morbidity and mortality of this disease. The relationship between exacerbations and patient-related clinical outcomes is not clearly understood. ⋯ In the placebo-treated patients increased frequency of exacerbations was associated with larger decrements in FEV(1), TDI, and SGRQ. A reduction in the frequency of exacerbations is associated with changes that are considered meaningful in these clinical outcomes.
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Int J Chron Obstruct Pulmon Dis · Jan 2009
Comparative StudyChange in inflammation in out-patient COPD patients from stable phase to a subsequent exacerbation.
Inflammation increases during exacerbations of COPD, but only a few studies systematically assessed these changes. Better identification of these changes will increase our knowledge and potentially guide therapy, for instance by helping with quicker distinction of bacterially induced exacerbations from other causes. ⋯ Sputum eosinophil, neutrophil, and lymphocyte counts increase during COPD exacerbations. The increase in systemic inflammation during exacerbations seems to be limited to exacerbations caused by bacterial infections of the lower airways. Sputum TNF-alpha is a candidate marker for predicting airway bacterial infection.
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Int J Chron Obstruct Pulmon Dis · Jan 2009
Randomized Controlled Trial Multicenter Study Comparative StudyEfficacy of amoxycillin versus amoxycillin/clavulanate in acute exacerbations of chronic pulmonary obstructive disease in primary care.
Amoxycillin/clavulanate is considered first-line treatment for ambulatory exacerbations of COPD. However, narrow-spectrum antibiotics may be as useful for mild to moderate patients. ⋯ Amoxycillin was at least as effective clinically and as safe as amoxycilin/ clavulanate in the treatment of acute exacerbations of COPD in mild to moderate patients in primary care.