Síndrome Látex-frutas y su importancia en odontología / Latex-fruit syndrome and its importance in dentistry

Diversos estudios han demostrado que entre un 20% y un 60% de los individuos alérgicos a látex presentan reacciones mediadas por inmunoglobulina E (IgE) a una amplia variedad de alimentos, principalmente a frutas como el cambur (banana, plátano) el aguacate, la castaña y el kiwi, lo cual se conoce como síndrome látex-frutas. El odontólogo debe conocer esta reacción cruzada de alergia a fin de evitar situaciones que puedan poner en riesgo al paciente si no se toman las medidas que garanticen un ambiente seguro libre de látex

Studies have shown that between 20% and 60% of individuals allergic to latex have IgE-mediated reactions (IgE) to a wide variety of foods, mainly fruits like banana, avocado, sweet chestnut and kiwi, which is called latex-fruit syndrome. The dentist should be aware of this allergy cross-reaction to avoid situations that may endanger the patient if not taken measures to ensure a safe environment free of latex

Sensitization to common allergens, especially pollens, among children with respiratory allergy in the Trakya region of Turkey.

Asthma and allergic rhinitis are common problems in children and the causative pollen allergens vary according to the geographical area. The aim of this study was to investigate patterns of sensitization to common inhalant allergens, especially pollens, in Turkish children living in the Trakya region and to determine differences between rural and urban areas. Allergen skin testing was prospectively performed on 539 children aged between 4 and 17 years with respiratory allergy. The reaction was considered to be positive if the mean wheal diameter was at least 3 mm greater than that of the negative controls. We detected positive skin reactions in 420 (77.9%) children. Two hundred and eighty-one (52.1%) mite, 277 (51.4%) pollen, 174 (32.3%) mold, 65 (12.1%) animal dander, 12 (2.2%) cockroach and 6 (1.1%) latex skin sensitivities were detected. Among the pollen allergies 173 were cereal pollen (32.1%), 170 grass pollen (31.5%) and 144 tree pollen allergies (26.7%). The most common positive skin test among the pollens was to cultivated wheat (Titicum vulgare) (n = 116, 21,5%), followed by rye grass (Lolium perenne) and orchard grass (Dactylis glomerata). Positive skin reactions to Alternaria, to Candida albicans, and to all pollens except Ulmus competris, Pinus sylvetris, Platanus vulgaris and Tilia platyphyllos, were higher in children with allergic rhinitis than in those with asthma. In children from rural areas, allergic skin reactivity was found to be more common against Candida albicans, sheep dander and all pollens except Corylus avellana, Fraxinus excelsior, Populus alba, Pinus sylvetris, Platanus vulgaris and Chenopodium album, than in urban children. Although Trakya is close to Greece and other Mediterranean countries, this study suggests that the pollens, which sensitize children, are not similar.

Alergia al látex: presentación de un caso / Latex allergy: case report

Antecedentes: La alergia al látex es una entidad clínica de baja incidencia que es necesario conocer y reconocer, porque constituye una amenaza a la vida en pacientes susceptibles. Objetivos: Presentación de un caso con revisión de los mecanismos fisiopatológicos, medidas de prevención y tratamiento del shock anafiláctico intraoperatorio. Presentación del caso: Embarazada de término con fuerte antecedente de alergia al látex. Se programa colocar un catéter peridural durante el trabajo de parto pero luego es descartado, por no disponerse de guantes que no sean de látex. Para efectuar la operación cesárea fue necesario retirar previamente todos los elementos del quirófano que contenían látex. La anestesia y cirugía transcurrieron sin inconvenientes.

Alergia látex-fruta / Latex-fruit allergy

O látex está sendo considerado o alergênico do ano 2000, tendo em vista que inúmeros indivíduos, principalmente profissionais da área de saúde e pacientes submetidos a várias intervenções diagnósticas e terapêuticas, estão freqüentemente expostos aos alérgenos do látex, presentes em produtos de borracha natural. As manifestações clínicas conseqüentes às reações alérgicas de hipersensibilidade imediata vão desde rinite, urticária, conjuntivite, angioedema, asma, até anafilaxia. Estudos recentes estão demonstrando que pacientes alérgicos ao látex desenvolvem concomitantemente sensibilização a certos alimentos de origem vegetal, especialmente frutas como papaia, figo, banana, abacate, kiwi, pêssego, abacaxi, melão e castanha, acreditando-se numa provável ocorrência de reações cruzadas entre os alérgenos do látex e destas frutas. Faz-se, então, uma revisão sobre a alergia ao látex, em particular sobre os grupos de risco, incluindo a presença de reatividade cruzada entre o látex e as frutas.