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Biomedical subjects

A A Yazidi

Publications and source records attributed to A A Yazidi.

4 recordsLinked to original sources
PubMed2001

[Prevalence of respiratory problems in workers at two manufacturing centers of ready-made concrete in Morocco].

SETTING: Employees at factories for ready-made concrete are exposed to the dust emanating from the products (such as sand, gravel and cement); however, there have been few studies on the subject. METHODS: A retrospective cohort analysis was conducted in a male population: 120 employees working in cement production and 120 non-exposed civil servants working at the Casa-Anfa prefecture. Each employee underwent interview by standardised questionnaire, spirometry test and standard chest radiography. RESULTS: Statistical analysis of the results revealed an increase in the prevalence of exposed symptomatic subjects compared to non-exposed subjects (57.5% vs. 24.2%) and increased prevalence of all of the symptoms: cough (15.8% vs. 15%), dyspnea (21.6% vs. 5%), chronic bronchitis (11.7% vs. 6.7%), asthma (14.2% vs. 7.5%), rhinitis (40% vs. 19.2%), conjunctivitis (48.3% vs. 10%) and dermatitis (22.5% vs. 6.7%). This increase is only statistically significant for dyspnea, rhinitis, conjunctivitis and dermatitis. Changes in lung function parametres were much more frequent among the workers at the two factories than among the non-exposed workers (40.8% vs. 11.7%). Tobacco also seemed to have an effect on respiratory deficit. Analysis of the chest radiographs of the exposed subjects, using the ILO international classification, revealed 19 (15.8%) abnormal films. CONCLUSIONS: Working conditions in cement factories must be improved rapidly (particularly collective technical prevention) and a medical service should be set up for regular management and follow-up of the workers.

Adult↗
PubMed2001

[Skin sensitization to pollens in Morocco. Multicenter study].

The objective of this study was to determine the prevalence of skin sensitization to certain pollens in some regions of Morocco. This multicentric study involving 10 centres included a consecutive series of 640 patients consulting for the first time between february and april 1998 for asthma and/or rhinitis and/or conjunctivitis. Skin prick tests (SPT) were performed with stallerpointes (Stallergenes) and interpreted according to standard procedures. Pollinosis was ascertained when SPT was positive to one or more pollens. Epi-Info was used to analyze the data. SPT were positive in 75.9% and prevalence of sensitization to pollens was equal to 28% (179 cases). It ranked second after house dust mites (63%), olive, 5 grass, cupressus, parietaria and corylus sensitization were encountered in 19.8%, 10.9%, 3.8%, 1.7% and 1.3% respectively. Prevalence of sensitization to pollens didn't vary significatively according to age: 25.4% in females versus 31.1% in males (p = 0.13). Prevalence of pollen sensitization was 26.6% in case of asthma versus 30.9% in non asthmatics patients (p = 0.30), 30.1% in case of rhinitis versus 16.9% in non rhinitics (p = 0.009), 36.4% in case of conjunctivitis versus 22.7% in case without conjunctivitis (p < 0.0002). According to the regions, prevalence was significatively high in areas like Meknes (56%), Beni-Mellal (48.1%), Marrakech (43.5%) where olive is abundant in comparison with Oujda (30.8%), Agadir (30.8%), Tanger (27.3%), Rabat (21.8%), Safi (21.3%), Casablanca (11.6%) and El Jadida (10%). The prevalence was up to 84.3% when symptoms were predominant in spring versus 16.8% in other seasons (p < 0.0001). Thus, although SPT did not include numerous other pollens, olive pollinosis seems to be prevalent in Morocco, followed by allergy to grass pollen. Such studies need to be carried out in line with pollen count.

Adolescent↗
PubMed1999

[Phantom thoracic opacity].

The etiology of the respiratory distress syndrome is dominated by pulmonary edema and the septic shock. We report a rare etiology of a respiratory distress secondary to a rupture of a well treated tuberculous latero-tracheal adenopathy. A 24-year-old woman was treated a year ago for a peripheral and mediastinal lymph node tuberculosis confirmed by the biopsy of a left supra clavicular adenopathy, by two months of isoniazid-rifampicin-pyrazinamide-ethambutol and seven months of isoniazid-rifampicin. The patient completed 9 month treatment with a good clinical and radiology course. Two months after stopping the antibacillary treatment, the patient was admitted to an intensive care unit with a respiratory distress syndrome requiring both intubation and artificial ventilation. The bronchial aspiration brought back plain pus. The telethorax from admission was normal and the retrospective history suggested the diagnostic of a ganglio-bronchial fistula which was confirmed by bronchial fibroscopy demonstrating right latero-tracheal fistula. The course was good with recovery of consciousness on the seventh day. Direct bacilloscopies and culture were negative. The digestive fibroscopy was normal. Finally, fistulization of a tuberculous adenopathy must be considered among the etiologies of respiratory distress even in a patient appropriately treated for mediastinal lymph node tuberculosis.

Acute Disease↗