Respiratory medicine
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Respiratory medicine · Jul 2007
Multicenter Study Comparative StudyEnhanced persistence with tiotropium compared with other respiratory drugs in COPD.
Tiotropium is a once-daily inhaled anticholinergic maintenance treatment with demonstrated effectiveness in chronic obstructive pulmonary disease (COPD). ⋯ Persistence with tiotropium was higher compared to other inhaled respiratory drugs in COPD in clinical practice.
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Respiratory medicine · Jul 2007
Multicenter StudySurvival and future need of long-term oxygen therapy for chronic obstructive pulmonary disease--gender differences.
We aimed to study trends in gender-related differences in incidence, and prevalence for long-term oxygen therapy due to chronic obstructive pulmonary disease. Another aim was to study survival after onset of oxygen therapy. Prospectively followed were 5689 Swedish patients, who were prescribed oxygen therapy because of chronic obstructive pulmonary disease from 1987 to 2000. ⋯ In conclusion, the incidence and prevalence for long-term oxygen therapy increases more rapidly among women than in men. This is probably due to the increased frequency of smoking in women compared with men and a higher susceptibility to develop severe hypoxaemia in women. The survival is better in women with long-term oxygen therapy than in men.
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Respiratory medicine · Mar 2007
Randomized Controlled Trial Multicenter StudyAdjunct armodafinil improves wakefulness and memory in obstructive sleep apnea/hypopnea syndrome.
Armodafinil is the R-enantiomer of racemic modafinil and has a significantly longer half-life than the S-enantiomer. This study evaluated armodafinil 150 mg/day as an adjunct treatment for residual excessive sleepiness in patients with obstructive sleep apnea/hypopnea syndrome (OSA/HS) who were otherwise well controlled with nasal continuous positive airway pressure (nCPAP). We assessed the ability of armodafinil to improve wakefulness and cognition and reduce fatigue in this population. ⋯ Adjunct treatment with armodafinil significantly improved alertness, overall clinical condition, and long-term memory. Armodafinil also reduced fatigue and the impact of sleepiness on daily activities in patients with OSA/HS who have residual excessive sleepiness notwithstanding regular use of nCPAP. Armodafinil was well tolerated.
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Respiratory medicine · Feb 2007
Randomized Controlled Trial Multicenter Study Comparative StudyRelative responsiveness of the Chronic Respiratory Questionnaire, St. Georges Respiratory Questionnaire and four other health-related quality of life instruments for patients with chronic lung disease.
Selection of heath-related quality of life (HRQL) instruments that are most responsive to changes in HRQL prevents investigators from drawing false-negative conclusions about the effectiveness of an intervention. The objective of this study was to compare the responsiveness of the Chronic Respiratory Questionnaire (CRQ), the St. Georges Respiratory Questionnaire (SGRQ) and four other HRQL instruments. ⋯ This study confirms that the CRQ and SGRQ are substantially more responsive than generic measures, and suggests particularly strong responsiveness for the self-administered CRQ.
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Respiratory medicine · Oct 2006
Multicenter StudyCharacteristics of COPD phenotypes classified according to the findings of HRCT.
The present study was performed to clarify the clinical characteristics of chronic obstructive pulmonary disease (COPD) patients classified into phenotypes according to the dominancy of emphysema and the presence of bronchial wall thickening evaluated by chest high-resolution computed tomography (HRCT). Eighty-five patients with stable COPD (FEV1 < or = 80%) were examined by chest HRCT. Emphysematous changes and bronchial wall thickening were evaluated visually, and COPD patients were classified into three phenotypes: absence of emphysema, with little emphysema with or without bronchial wall thickening (A phenotype), emphysema without bronchial wall thickening (E phenotype), and emphysema with bronchial wall thickening phenotype (M phenotype). ⋯ The degree of emphysema was significantly associated with Brinkman index, lower BMI, decrease in DLco, lower FEV1/FVC. The presence of bronchial wall thickening in A- and M- phenotype was significantly associated with reversibility responsive to treatment with inhaled corticosteroid and sputum eosinophilia. These findings suggest that the morphological phenotypes of COPD show several clinical characteristics and different responsiveness to treatment with bronchodilators and inhaled corticosteroids.