[Treatment of acute and bacterial lower respiratory tract infections with roxithromycin].
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Biomedical subjects
Publications and source records attributed to A Chabbou.
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Primary malignant melanoma of the lower airways is very rare. 24 cases have been collected over the past century. Our case was a patient of 52 years of age who had been discovered to have a tracheal tumour which was found to be a malignant melanoma and was treated with a Laser. The major problem is to establish that the tumour is primary. The combination of clinical evidence, paraclinical, subsequent outcome and in certain cases the autopsy enables the diagnosis of a primary tumour to be retained without having absolute certainty because a cutaneous melanoma can disappear after having metastasised.
Eosinophilic pleural effusion accounts for 5 to 10% of all clear liquid pleurisies. Its pathogenic significance is unclear and its relation to the causative diagnosis of pleural eosinophilia is diversely evaluated. In this study, 86 cases of eosinophilic pleural effusion observed at the Ariana Pneumophthisiology Hospital over a 5-year period are reviewed. At first aspiration, the proportion of pleural fluid eosinophils varied from 12% to 85% (54% on average). Blood eosinophilia was present in 60% of the patients. The main cause of effusion was tuberculosis (39.6%, but many other diseases were observed; despite numerous investigations, no cause could be found in 23.2% of the cases. The discovery of a pleural eosinophilia has an impact on the probable cause of the pleurisy, and this can be determined by applying Bayes' rule. The probability of tuberculous being the cause falls from 70.3% for clear liquid pleurisies generally to 44.6% for eosinophilic pleurisy. The probability of cancer as a cause falls from 4.5% to 0.66%; whereas that of "idiopathic" pleurisy rises from 13.5% to 59.56%. These findings are concordant with Adelman's conclusions. In other words, the finding of a pleural eosinophilia decreases the probability of tuberculous or malignant pleural effusion and increases the probability of benign or "idiopathic" effusion. Clinicians confronted with an eosinophilic pleural effusion should be particularly careful and accurate since this diagnosis may spare the patient an unnecessary exploratory thoracotomy and an unwarranted antituberculous treatment.
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Phadiatop is a new in vitro screening test for respiratory allergy. This test, based on the RAST procedure, detects in serum, the presence of specific IgE to a mixture of common inhalent allergens. Among 70 patients (26 children and 44 adults) consulting for respiratory syndrome, Phadiatop was positive in 31 cases. There were a good correlation between this new test and skin tests (59% for adults and 92% for children), total IgE (70% for adults and 65% for children) and RAST (93% for adults and 96% for children). Phadiatop, with a specificity of 100%, a sensitivity of 82% (76% for adults and 92% for children) and an efficiency of 90% (86% for adults and 96% for children), is a more accurate test than total IgE and could be an excellent in vitro screening test for respiratory allergy.