Archivos de bronconeumología
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Arch. Bronconeumol. · Jun 2011
Review[Inhaled antibiotics in the treatment of noncystic fibrosis bronchiectasis].
Inhaled antibiotics are increasingly used in patients with non-cystic fibrosis (CF) bronchiectasis. Currently, there is no formal indication for the use of this therapy in these patients as inhaled antibiotics are currently only indicated in patients with CF. Therefore, prescription in patients with non-CF bronchiectasis will continue to be based on compassionate use until scientific evidence from ongoing clinical trials becomes available. ⋯ Adverse effects are usually mild and consist of local irritation of the airway, although their frequency is greater than that in patients with CF. Currently, various clinical trials are being carried out that aim to establish the indications for inhaled antibiotic therapy in these patients. Due to its special characteristics (high local concentrations of the drug with scarce systemic adverse effects), inhaled antibiotic therapy will undoubtedly be an excellent future option for the management of bronchiectasis, as well as of many other diseases of the airways.
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Aerosolized antimicrobial agents have been used in clinical practice since the 1950s. The main advantage and aim of using this route of administration is delivery of the drug to the site of infection in the lung. Achieving this aim may produce high concentrations in the site of infection or colonization and reduce systemic toxicity to a minimum. ⋯ In addition to this indication, the use of aerosolized antimicrobials has also been studied in the treatment or prevention of a series of other diseases, including noncystic fibrosis bronchiectasis, ventilator-associated pneumonia, prophylaxis against fungal lung infections, mycobacterial lung infections and, more recently, in chronic obstructive pulmonary disease. Although the theoretical bases underlying aerosol antibiotic administration seem convincing, there is insufficient evidence to support its routine use. Due to the gaps in knowledge that persist in the routine use of aerosolized antibiotics, caution should be exercised in situations without clearly established indications for this modality, such as the treatment of patients with cystic fibrosis, bronchiectasis or Pneumocystis pneumonia.
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Arch. Bronconeumol. · Apr 2011
ReviewRelationship between gastro-oesophageal reflux and airway diseases: the airway reflux paradigm.
Our understanding of the relationship between gastro-oesophageal reflux and respiratory disease has recently undergone important changes. The previous paradigm of airway reflux as synonymous with the classic gastro-oesophageal reflux disease (GORD) causing heartburn has been overturned. Numerous epidemiological studies have shown a highly significant association of the acid, liquid, and gaseous reflux of GORD with conditions such as laryngeal diseases, chronic rhinosinusitis, treatment resistant asthma, COPD and even idiopathic pulmonary fibrosis. ⋯ The evidence for such a relationship relies on the clinical history pointing to symptom associations with known precipitants of reflux. The tools for the diagnosis of extra-oesophageal reflux, in contrast to the oesophageal reflux of GORD, lack sensitivity and reproducibility. Unfortunately, methodology for detecting such reflux is only just becoming available and much additional work is required to properly delineate its role.
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Arch. Bronconeumol. · Apr 2011
Multicenter StudyReliability and validity of a short version of the STAI anxiety measurement scale in respiratory patients.
There is comorbidity between respiratory disease and anxiety. In order to measure the anxiety of hospitalized patients it is necessary to use reliable and valid, and preferably short questionnaires. ⋯ The short version of the state subscale of the STAI has showed good metric properties in hospitalized respiratory patients.
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Arch. Bronconeumol. · Apr 2011
Review[Physiology and physiopathology of the distal airways in asthma].
The small airways are those with an internal diameter of less than 2 mm. The contribution of these airways to total airflow resistance is small in healthy individuals but can represent 50-90 % of total airflow resistance in asthmatics. Suspicion of small airways disease has been based on reduction of midexpiratory and instantaneous flows, although wide variability in their values and the absence of a sufficiently validated cut-off point has limited their clinical application. ⋯ The characteristic pattern of peripheral obstruction includes a decrease in frequency-dependent resistance, reduced reactivity and an increase in resonance frequency. Single-or multiple-breath nitrogen washout can also provide specific information on the small airways, although the apparatus required is less frequently available. Analysis through bicompartmental models of exhaled nitric oxide allows alveolar nitric oxide concentrations to be determined, which seems to provide information on inflammatory activity in the small airways.