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Query: UMLS:C0042109 (urticaria)
 6,569 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Allergies to Ficus benjamina (Fb, weeping fig) have been described first as an occupational disease in plant keepers and later in clearly atopic subjects with known sensitizations to other inhalant allergens. We report a case of a hitherto nonatopic man with allergic rhinoconjunctivitis, contact urticaria, and asthma caused by a Fb kept in his bedroom for 18 months. Rubbing and skin prick test with native fig leaves and sap, and RAST to Fb were clearly positive. No other sensitization could be detected. After eliminating his Fb, he became asymptomatic within a few months. This case shows that private close contact to Fb can also induce allergy even in hitherto nonatopic subjects. Therefore, Fb should not be kept in bedrooms.
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PMID:Severe isolated allergy to Ficus benjamina after bedroom exposure. 823 4

Data on occupational contact urticaria (protein contact dermatitis included) in Finland during 1990-1994 were analyzed. Altogether 815 cases were reported to the Finnish Register of Occupational Diseases during this period, compared with 1944 cases of occupational allergic contact dermatitis. Accordingly, the total number of occupational allergic contact dermatoses was 2759, 29.5% being contact urticaria and 70.5% being allergic contact dermatitis. Occupational contact urticaria was much more common in women (70%) than in men (30%). The 6 most common causes of contact urticaria were (1) cow dander (362 cases = 44.4%), (2) natural rubber latex (193 cases = 23.7%), (3) flour, grains and feed (92 cases = 11.3%), (4) handling of foodstuffs (25 cases = 3.1%), (5) industrial enzymes (14 cases = 1.7%) and (6) decorative plants (13 cases = 1.6%). The occupations with the highest numbers of occupational contact urticaria were farmers (341 cases), domestic animal attendants (61), bakers (53), nurses (42), chefs (40) and dental assistants (28). The ranking list of the most common occupations with occupational contact urticaria per 100,000 employed workers was as follows: (1) bakers (140.5 cases per 100,000 employed persons), (2) preparers of processed food, (3) dental assistants, (4) veterinary surgeons, (5) domestic animal attendants, (6) farmers and silviculturalists, (7) chefs, cooks and cold buffet managers, (8) dairy workers, (9) horticultural supervisors, (10) laboratory technicians and radiographers, (11) physicians, (12) butchers and sausage makers, (13) laboratory assistants, (14) dentists and (15) nurses (21.2 cases per 100,000 employed person). Low-molecular-weight chemicals caused very few cases of occupational contact urticaria, the most common being 2-ethylhexyl acrylate (5 cases). To summarize, occupational contact urticaria forms a large group of occupational contact dermatoses, and dermatologists need to be able to diagnose IgE-mediated immediate skin allergic diseases.
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PMID:Statistical data on occupational contact urticaria. 895 43

Occupational diseases of dentists and dental nurses were compiled from the Finnish Register of Occupational Diseases. The cases were recorded during 3 3-year observation periods, namely 1982-1984, 1986-1988, and 1992-1994 (i.e., 9 observation years). The relative risk of developing occupational allergic contact dermatitis in different occupations was calculated from the statistics of the years 1986-1991, and was expressed as the age-standardized rate ratio (SRR). During the 9 observation years, the majority of registered occupational diseases of dentists and dental nurses were skin diseases (221/312; 70.8%), followed by occupational repetitive strain injuries (61/312; 19.6%) and occupational respiratory diseases (20/312; 6.4%). The incidence rate (IR) for allergic contact dermatoses/10,000 workers (contact urticaria included) increased from 26 (95% confidence interval (CI) 16-40) in 1982-1984 to 79 (95%, CI 64-97) in 1992-1994. The IR/10,000 of allergic contact dermatoses increased especially for dentists, from 5.4 (95% CI 0.7-19) in 1982 to 67 (95% CI 45-95) in 1992-1994. The increase of the IR/10,000 dental nurses was smaller: from 43 (95%, CI 26-66) in 1982-1984 to 87 (95% CI 67-111) in 1992-1994. There was no increase in the IR/10,000 cases of irritant dermatoses. The most common causes of allergic contact dermatitis were plastics, disinfectants and antimicrobials, rubber chemicals, and mercury/mercury salts. The most common causes of irritant contact dermatitis were detergents, wet and dirty work, plastic chemicals and antimicrobials. Currently, Finnish dentists have the highest risk and dental nurses have the 4th highest risk of any occupation for developing occupational allergic contact dermatitis: the risk was 6.4-fold (SRR 6.4) in dentists and 6.1-fold in dental nurses, as compared to the general working population. It is evident that safer acrylics and protective gloves, better product declarations and material safety data sheets, as well as more information about protective measures, including non-touch working techniques, are needed.
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PMID:Increase in occupational skin diseases of dental personnel. 1004 56

Dermatological investigation and study of allergy in occupational medicine requires careful interrogation and clinical examination, a study of professional gesture, patch tests and other tests to research a possible contact allergen, and open tests and prick tests if a contact urticaria is suspected. Tests have to be interpreted with clinical data and environment to try to establish their relevance. This investigation will sometimes result on a possible change of post or occupation, and declaration of occupational disease.
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PMID:[Dermatology-allergy study in occupational medicine]. 1238 50

Asparagus (Asparagus officinalis) is a widely grown vegetable; together with garlic, the onion and the leek, it belongs to the Liliaceae family. Both delayed cell-mediated reactions and IgE-mediated reactions secondary to asparagus have been described. While the former (allergic contact dermatitis) are a fairly common cause of occupational disease, only a few case-reports of IgE-mediated reactions have been published. IgE-mediated reactions can be further grouped into food allergy and reactions due to cutaneous or respiratory exposure, which is often occupational. Anaphylaxis is the most common clinical picture of food allergy, while contact urticaria, rhinitis and asthma, appearing either isolated or associated, are clinical pictures of the latter. Sensitization to different allergens is the likely cause of the different clinical pictures due to asparagus. Their detection and early diagnosis is of prime importance due to the different prognosis and treatment. In the present article we resume our experience over the last 5 years.
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PMID:[Allergy to asparagus]. 1367 59

In Germany the most frequent initial report of occupational disease is due to occupational skin diseases ("Berufskrankheitenanzeige nach Nr. 5101 der Berufskrankheitenverordnung") defined as "severe or recurrent skin diseases that force the discontinuation of any activity that causes or that could be causing the development, the worsening, or the recurrence of the skin disease". The majority of these occupational skin diseases consists of irritant and allergic contact dermatitis. In contrast, work place- related Type I allergy (contact urticaria syndrome) is less frequent, but carries the risk of systemic reactions. The clinical manifestations and pattern of exposure to Type I allergens in the work place are described.
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PMID:[Dermatologic occupationally relevant type I allergies]. 1474 60

Out of 923 female dental nurses in the Helsinki district, 799 were interviewed using a computer-assisted telephone interview. A structured questionnaire was used to inquire about skin, respiratory symptoms, atopy, work history and methods, and exposure at work. The 328 nurses, who reported work-related dermatitis on their hands, forearms or face, were invited to an interview by an occupational physician; 245 nurses participated. 31 nurses had previously been diagnosed with an occupational skin disease (OSD). 133 nurses with a suspected OSD were selected for further clinical examinations with prick and patch testing. Among the 107 nurses examined, 22 new cases of OSD were diagnosed. There were altogether 29 cases of allergic contact dermatitis, 15 of contact urticaria, 12 of irritant contact dermatitis, and 1 case of onychomycosis. Rubber chemicals and natural rubber latex (NRL) in protective gloves, as well as dental-restorative plastic materials [(meth)acrylates], were the most common causes of allergy. 42% of the OSD cases in the studied population had been missing from the statistics (Finnish Register of Occupational Diseases). Plastic gloves or NRL gloves with a low-protein content are recommended for dental work. Skin exposure to (meth)acrylates should be avoided.
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PMID:Occupational skin diseases among dental nurses. 1512 17

Hyperreactivity to environmental factors is objectively expressed as respiratory, cutaneous and gastrointestinal disease. Approaching the diagnosis of an occupational disorder, a practical distinction was made between toxicity and allergy. The study of occupational allergic disease included particular procedures that led to standardized models and concepts. The contribution to the improvement of medical knowledge is reviewed according to selected experiences. The diagnostic aspects of asthma, rhinitis, dermatitis and urticaria are considered as regards to methodology of assessment of the occupational etiology with attention to demonstrative examples, which are worthwhile for the general medicine, too. Basic steps of risk agent identification, exposure assessment, threshold dose response measurement, allergen challenges and interaction are the original contribution of the occupational medicine to the diagnosis of allergic disorder. The clinical picture of asthma was clarified by the results of the specific bronchial provocation test, proving the important role of di-isocyanates and metal salts. Occupational rhinitis showed to be connected to asthma with predictive aspects in bakers' disease. Occupational dermatitis was linked to the development of experimental patch tests. Occupational urticaria included the concept of airborne contact allergy or nickel interactive food and occupational sensitivity. Occupational allergic diseases are emerging as a consequence of low environmental exposure, but they were remarkably studied in the past either for pathogenesis or for diagnostic procedures. Methods and acquisition are available also for the general medicine when an individual's specific reactivity is under investigation.
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PMID:Occupational allergic diseases as a clinical model to approach specific environmental reactivity. 1635 May 49

The purpose of this study was to establish hand dermatitis (HD) risk factors among Japanese nurses. A questionnaire was administered to 1,162 clinical nurses, from whom 860 replies were received (response rate of 74.0%). Their overall HD prevalence was 53.3%. Several risk factors were identified: using latex gloves (odds ratio [OR] 1.9), allergies in adulthood (OR 2.7), urticaria as an adult (OR 1.5), atopic dermatitis as an adult (OR 2.7), any allergies to latex products (OR 5.2), skin irritation following contact with latex (OR 4.1), contact dermatitis following contact with latex (OR 3.5), family history of hay fever (OR 1.6), and family history of atopic dermatitis (OR 1.9). The use of hand cream was associated with a 50% reduction in HD risk (OR 0.5). In this study, we found that Japanese clinical nurses suffer a significant occupational burden from HD. As such, it is essential that hospital managers consider interventions to reduce this troublesome occupational disease among clinical nurses in Japan, as elsewhere.
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PMID:Hand dermatitis risk factors among clinical nurses in Japan. 1680 59

Respiratory problems or urticaria are well known in patients sensitized to tobacco. This occurs mainly as an occupational disease in tobacco workers, but also occasionally in those who smoke tobacco or dip snuff. Similar respiratory problems and anaphylactoid reactions have been observed in patients sensitized to cannabis. This may occur in those allergic to cannabis pollen when the plants bloom, in those with agricultural exposure and rarely in the end consumer. We describe a patient with generalized itching provoked by tobacco and cannabis smoking. Skin prick tests and specific IgE towards tobacco and cannabis were positive. Because of the close correlation of smoking tobacco or cannabis and the onset of symptoms, we put forward the diagnosis of a type I allergic reaction towards tobacco and cannabis.
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PMID:Generalized pruritus in a patient sensitized to tobacco and cannabis. 1737 95


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