Publications by authors named "N Migueres"
Background: Exposure-related changes in exhaled nitric oxide (FeNO) and sputum eosinophils have not been thoroughly compared in the investigation of occupational asthma.
Objective: This study aimed at comparing the accuracies of the changes in FeNO concentrations and sputum eosinophil counts in identifying asthmatic reactions induced by occupational agents during specific inhalation challenges (SICs).
Methods: This retrospective multicenter study included 321 subjects who completed an assessment of FeNO and sputum eosinophils before and 24 h after SICs with various occupational agents, of whom 156 showed a positive result.
Background: Bronchial thermoplasty (BT) is a bronchoscopic procedure for patients with severe uncontrolled asthma, but randomized controlled studies of its efficacy in severe asthma with frequent exacerbations are lacking. The current aim was to assess BT efficacy in this patient population.
Methods: Thirty patients with asthma (GINA 5) who had experienced at least four severe exacerbations in the preceding year were randomized to BT (n = 15) or control groups (n = 15).
Article Synopsis
- The study evaluated the effectiveness of specific IgE (sIgE) testing for wheat and rye flour in diagnosing occupational asthma compared to a specific inhalation challenge (SIC), which is considered the gold standard.
- Results showed that sIgE levels of 0.35 kU/L or greater had similar diagnostic sensitivity and specificity to the SIC, but higher sIgE thresholds increased specificity significantly.
- The findings suggest that high sIgE levels can effectively indicate flour-induced occupational asthma, while low levels in patients with a positive SIC may correlate with lower T2 inflammatory biomarkers.
Airway Diseases Related to the Use of Cleaning Agents in Occupational Settings.
J Allergy Clin Immunol Pract
August 2024
Exposure to disinfectants and cleaning products (DCPs) is now a well-established risk factor for work-related asthma (WRA). However, questions remain on the specific causal agents and pathophysiological mechanisms. Few studies have also reported an association between DCPs and rhinitis or chronic obstructive pulmonary disease.
View Article and Find Full Text PDFThe environment of an asthmatic patient can contain numerous sources of pollutants that degrade the quality of indoor air and have major repercussions on the occurrence and control of asthma. Assessment and improvement of the quality of indoor air should be assigned a major role in pneumology and allergology consultations. Characterization of an asthmatic's environment entails a search for biological pollutants with mite allergens, mildew, and allergens resulting from the proximity of pets.
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