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PubMed2004

Safety of research bronchoscopy, biopsy and bronchoalveolar lavage in asthma.

Bronchoscopy with endobronchial biopsy (EBB) and/or bronchoalveolar lavage (BAL) has become an important research tool in asthma. A recent report has suggested audit and reporting of the safety of these procedures. A total of 159 asthmatic patients (84 males, 75 females), aged 18-52 (median 27) yrs, forced expiratory volume in one second 53-120 (median 88) % predicted, underwent 273 bronchoscopies in six clinical research studies. On 228 occasions, EBB and BAL were performed and, on 45 occasions, EBB was performed alone. On 48 occasions, bronchoscopy was performed 24 h post-allergen challenge. Adverse events occurred on 34 out of 273 occasions, none of which were following allergen challenge. Post-EBB and BAL, four patients developed pleuritic chest pain, shortness of breath and fever. A further two patients experienced pleuritic chest pain alone post-EBB/BAL. Bronchospasm or worsening of asthma symptoms occurred on 14 occasions, 13 post-EBB/BAL and on one occasion post-EBB alone. Fever/flu-like symptoms were reported on nine occasions following EBB and BAL. One subject had haemoptysis post-EBB/BAL, but required no intervention. In conclusion, bronchoscopy, endobronchial biopsy and bronchoalveolar lavage can be performed safely in asthmatic patients. Most of the complications were seen where bronchoalveolar lavage and endobronchial biopsy were both performed, suggesting that bronchoalveolar lavage accounts for most of the adverse events.

Adult↗

PubMed2001

What are the alternatives to increasing inhaled corticosteroids for the long term control of asthma?

The Global Initiative for Asthma (GINA) guidelines stated the therapeutic goals for the management of asthma and, through a stepwise approach to treatment, defined the various grades of asthma severity and the therapeutic options available to the clinician at each step. This article considers the options at step 3; the management of a patient with poorly controlled asthma who is already taking low-dose inhaled corticosteroids. Before considering a change in therapy, the clinician should rule out alternative diagnoses, confirm compliance with treatment, explore potential exacerbants in the patient's environment and, where possible, remove them. If a change in medication is necessary, the choice of drug will depend on the therapeutic goal that needs to be achieved. If the most important goal is the control of symptoms and optimisation of lung function, most studies support the addition of a long-acting beta(2)-agonist to low dose inhaled corticosteroids. If recurrent severe exacerbations are a major feature of the poor control, increasing the dosage of inhaled corticosteroids may be most effective. The addition of a leukotriene antagonist may be the best choice if exercise-induced symptoms are prominent or in the setting of aspirin-sensitive asthma. General recommendations supported by the findings of large therapeutic trials do not allow for significant variability in the individual response to a particular drug. Receptor polymorphisms have recently been discovered that may account for variability in the response to beta(2)-agonists and leukotriene receptor antagonists. However, until more is known about the reasons behind this variability, a therapeutic trial may be the most effective way of determining the best drug for an individual patient. One of the key developments in asthma over the past decade has been the acceptance of the concept of asthma as a chronic inflammatory disorder of the airways. However, the long term significance of this inflammation is not clear and the importance of control of inflammation beyond the suppression of symptoms, reduction of exacerbation frequency and the optimisation of lung function has not been established.

Adrenal Cortex Hormones↗

PubMed1997

Multiple tracheal strictures following mechanical ventilation.

Patients presenting with features of airway narrowing (cough, wheeze, exertional breathlessness and obstructive spirometry) may be suffering from either localized or generalized airway obstruction. Doctors sometimes overlook the possibility of localized obstruction (whether due to tumour, foreign body aspiration or stenosis), and patients may experience symptoms for a long time before the correct diagnosis is made.

Humans↗