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L'essentiel de la littérature réçente en Pneumologie

Dans cette rubrique on vous propose une revue de la littérature à travers une sélection d'abstracts d'articles originaux.
On essaiera de vous tenir informé des dernières nouveautés de recherche en matière de Pneumologie. On ne vous fournit que le résumé de l'article et le lien correspondant, pour accéder à l'article en full text vous devez être inscrits à la revue correspondante.
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Clinical relevance of molecular diagnosis in pet allergy Imprimer Envoyer
Mercredi, 27 Avril 2016 06:05
We describe the pattern of sensitisation to pet IgE components and its association with clinical symptoms. 159 consecutive patients with rhinitis/asthma sensitised to dog, cat, and horse were recruited. Specific IgE to whole extracts and to pet recombinant allergens were performed. Only 5% of patients were monosensitised to animal allergens. Specific IgE to Can f 1 was significantly associated with persistent rhinitis, Can f 2 with asthma diagnosis, Can f 3 with moderate/severe rhinitis (M/S-R) and asthma diagnosis (AD), and Can f 5 with persistent and M/S-R. Positive IgE to Fel d 2 was significantly associated with M/S-R and AD, Equ c 1 with M/S-R and Equ c 3 with persistent rhinitis, AD and severe asthma. Sensitisation to ≥2 molecules or to pet albumins was associated with more severe respiratory symptoms. Molecular diagnosis in patients with pet allergy may also help clinicians to predict clinical symptoms and their severity. This article is protected by copyright. All rights reserved.
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Prick Test: Evolution toward Automated Reading Imprimer Envoyer
Mercredi, 27 Avril 2016 06:05
The Prick Test is one the most common medical methods for diagnosing allergies, and it has been carried out in a similar and laborious manner over many decades. In an attempt to standardize the reading of the test, many researchers have tried to automate the process of measuring the allergic reactions found by developing systems and algorithms based on multiple technologies. This work reviews the techniques for automatic wheal measurement with the aim of pointing out their advantages and disadvantages and the progress in the field. Furthermore, it provides a classification scheme for the different technologies applied. The works discussed herein provide evidence that significant challenges still exist for the development of an automatic wheal measurement system that not only helps allergists in their medical practice but also allows for the standardization of the reading and data exchange. As such, the aim of the work is to serve as guideline for the development of a proper and feasible system. This article is protected by copyright. All rights reserved.
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The role of allergen components for the diagnosis of latex-induced occupational asthma Imprimer Envoyer
Mercredi, 27 Avril 2016 06:05
Background Recombinant Hevea brasiliensis (rHev b) natural rubber latex (NRL) allergen components have been developed to assess the patients’ allergen sensitization profile and to improve the diagnosis of NRL allergy. Objective To examine whether the determination of specific IgE (sIgE) reactivity to a panel of recombinant allergen components would be helpful for diagnosing NRL-induced occupational asthma (OA) in predicting the outcome of a specific inhalation test. Methods sIgE levels to NRL extract and 12 recombinant NRL allergen components were assessed in 82 subjects with OA ascertained by a positive specific inhalation challenge (SIC) with NRL gloves and in 25 symptomatic subjects with a negative challenge. Results The sensitivity, specificity, positive predictive value, and negative predictive value of a NRL-sIgE level ≥0.35 kUA/l as compared to the result of SICs were 94%, 48%, 86%, and 71%, respectively. The positive predictive value increased above 95% when increasing the cutoff value to 5.41 kUA/l. Subjects with a positive SIC showed a significantly higher rate of sIgE reactivity to rHev b 5, 6.01, 6.02, and 11 than those with a negative SIC. A sIgE sum score against rHev b 5 plus 6.01/6.02 ≥ 1.46 kUA/l provided a positive predictive value >95% with a higher sensitivity (79%) and diagnostic efficiency (Youden index: 0.67) as compared with a NRL-sIgE ≥5.41 kUA/l (49% and 0.41, respectively). Conclusion In suspected OA, high levels of sIgE against rHev b 5 combined with rHev b 6.01 or 6.02 are the most efficient predictors of a bronchial response to NRL.
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