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4.
Artigo em Inglês | MEDLINE | ID: mdl-16599251

RESUMO

UNLABELLED: Chironomids are insects which inhabit wetlands. In countries such as Sudan, The United States. Egypt and Japan they are the cause of serious environmental allergy. In Europe, and particularly in Spain, allergy to Chironomids is infrequent and has only been described in patients who handle Chironomid larvae which form part of certain fish foods. MATERIALS AND METHODS: We report a case of hypersensitivity to the Chironomid Midge (Chironomus thummi thummi) in a 23-year-old patient who on two occasions, after being in contact with fishfood, suffered rash, rhinoconjunctivitis, dyspnea and dysphagia. A Prick test was carried out with the habitual pneumoallergens, Chironomid Midge extract (PBS: 1.3 mg/ml), Common Mosquito (Culex pipiens), Squid, Mussel, Prawn and Anisakis. Conjunctival provocation was also carried out with Chironomid Midge extract; detection of specific IgE for Chironomid Midge, Common Mosquito (Aedes comunis), Mussel, Squid, Shrimp, Anisakis, house dust and house mites by means of the CAP technique; detection of IgE by means of ELISA in response to Chironomid Midge, Aedes mosquito, Squid, Prawn, Mussel and Anisakis; ELISA-inhibition and Immunoblott-inhibition. RESULTS: The positive results of the cutaneous tests, the detection of specific IgE and conjunctival provocation confirmed the existence of an IgE-mediated mechanism. In our patient, the in vitro techniques demonstrated cross reactivity with the Common Mosquito. CONCLUSIONS: We report on a patient with a case history of rhinoconjunctivitis, rash, dyspnea, and dysphagia after handling fish food. The etiological agent was the Chironomid larvae. The sensitization of our patient has been demonstrated by means of in vivo and in vitro techniques.


Assuntos
Ração Animal/efeitos adversos , Chironomidae/imunologia , Hipersensibilidade/etiologia , Adulto , Animais , Peixes , Humanos , Hipersensibilidade/diagnóstico , Larva/imunologia , Masculino , Testes Cutâneos
6.
Alergol. inmunol. clín. (Ed. impr.) ; 20(6): 275-278, dic. 2005. ilus
Artigo em Es | IBECS | ID: ibc-055363

RESUMO

Antecedentes: La henna se obtiene de las hojas de una arbusto llamado Lawsonia irnermes. Los tatuajes con henna son frequentes entre las personas hindúes y árabes que se decoran la piel con henna, que da un tinte rojizo. Actualmente están de moda los tatuajes temporales (tattoos) con henna. Aunque la henna tiene poco poder sensibilizante, con frecuencia se ve adulterada con otras sustancias, como la parafenilendiamina y aceites, con mucho mayor poder sensibilizante. Caso clínico: Mujer sana, de 16 años de edad que durante unas vacaciones se realiza un tatuaje temporal con henna en extremidad superior izquierda. Cuatro días más tarde comienza con eritema, edema, prurito, pápulas y vesículas en el lugar del tatuaje que posteiormente confluyeron y dieron lugar a ampollas. Precisó acudir durante un mes a realizarse curas en su centro de salud y recibió además corticoides por vía oral. Su hermana se había realizado un tatuaje similar sin presentar ningún tipo de reacción. Material y métodos: Cuando acudió a nuestra consulta dos meses después se le realizaron pruebas epicutáneas con lARa batería estándar y la de peluquería que mostraron una reacción positiva a las 48 y 96 horas frente al níquel, parafenildiamina, paraminodifenilamina, 4-fenilendiamina, pirogalol y 2,5-difenilaminotolueno. Discusión: Presentamos un caso de una mujer joven que presentó un eccema de contacto por la parafenilendiamina con la que probablemente se había adulterado la henna. El aumento de sensibilizaciones a la parafenilendiamina está siendo espectacular debido a estas prácticas de moda, sobre todo entre adolescentes


Introduction: ENA dye is obtained from the leaves of a small shrub, Lawsonia inermis. Skin painting with henna is traditionally performed in Muslim or Hindu persons on their skin that gives a red color. Temporary tattoos are widely applied today all over the world. Although henna rarely causes contact dermatitis, some additives like oils or paraphenylendiamine cause this reaction. Case report: A henna tattoo was applied on the arm of a healthy 16-years-old girl on holiday in a Mediterranean beach. Four days later, the girl developed erythema, oedema, pruritus, papules and vesicles. She was trated with topical and oral corticosteroids, with produce improvement and resolution in a month. Material and methods: Patch tests were performed on her back and we observed positive reactions after 48 and 96 hurs to niquel, paraphenylendiamne, para minodiphenylamine and 4-phenylendiamina. Discussion: We report a case of contact dermatitis after temporary tattoo with henna that probably contained paraphenylendiamine. Because of the worldwide fashion of skin painting, sensitisation to paraphenylendiamine is increasing dramatically


Assuntos
Feminino , Adolescente , Humanos , Dermatite Alérgica de Contato/etiologia , Dermatite Alérgica de Contato/diagnóstico , Fenilenodiaminas/efeitos adversos , Alérgenos/efeitos adversos , Tatuagem/efeitos adversos , Diagnóstico Diferencial , Testes do Emplastro
7.
Alergol. inmunol. clín. (Ed. impr.) ; 20(2): 73-76, abr. 2005. ilus
Artigo em Es | IBECS | ID: ibc-042304

RESUMO

Antecedentes: El ketoconazol es un antimicótico imidazólico de uso frecuente tanto por vía tópica como oral. A pesar de ello se han descrito pocas reacciones alérgicas. Material y métodos: Presentamos dos pacientes que sufrieron cuadros de anafilaxia tras la administración de ketoconazol. En ambos casos las pacientes habían utilizado antes diversos antimicóticos sin presentar ninguna reacción adversa. Tan sólo bastó una dosis oral de ketoconazol para desencadenar la reacción anafiláctica, con una latencia de entre 30 y 90 minutos. Resultados y conclusiones: Las pruebas cutáneas en prick y la determinación de IgE específica mediante la técnica de ELISA fueron negativas. No procedimos a la provocación con ketoconazol ya que se trataba de reacciones anafilácticas. Ambas pacientes toleraron sin problemas otros antimicóticos tanto del grupo de los imidazoles como de otros grupos farmacológicos. En la literatura hay pocos casos descritos de reacciones sistémicas a ketoconazol y con frecuencia se desconoce el mecanismo implicado


Introduction: Ketoconazole is an imidazolic antifungal which is frequently used both topically and orally. In spite of this, few allergic reactions have been reported. Materials and methods: Two patients who suffered symptoms of anaphylaxis after the administration of ketoconazole are presented. In both cases the patients had previously used different antifungals without any adverse effect. One dose of ketoconazole sufficed to unleash the anaphylactic reaction with a latent period of 30-90 minutes. Results and conclusions: The cutaneous tests and the determination of specific IgE by means of ELISA techniques were negative. We did not proceed to provocation with ketoconazole since the reaction was anaphylactic. Both patients tolerated other antifungals without any problem, both from the imidazole and other pharmacological groups. In the literature there are few reported cases of systemic reactions with ketoconazole and the mechanism implied is frequently unknown


Assuntos
Feminino , Adulto , Humanos , Cetoconazol/efeitos adversos , Hipersensibilidade Imediata/complicações , Hipersensibilidade Imediata/diagnóstico , Imunoglobulina E/efeitos adversos , Imidazóis/efeitos adversos , Antifúngicos/efeitos adversos , Ensaio de Imunoadsorção Enzimática/métodos
8.
Alergol. inmunol. clín. (Ed. impr.) ; 20(2): 81-83, abr. 2005. ilus
Artigo em Es | IBECS | ID: ibc-042305

RESUMO

Antecedentes y objetivos: La nitrofurantoína y la nitrofurazona son antibacterianos de amplio espectro que se emplean como antinfecciosos urinario y dermatológico, respectivamente. Material y métodos: Presentamos dos casos de hipersensibilidad a los nitrofuranos, uno con una anafilaxia tras la ingestión de nitrofurantoína y otro con una reacción local de dermatitis de contacto tras la aplicación tópica de nitrofurazona. Resultados y conclusiones: El estudio alergológico con pruebas cutáneas y determinación de IgE frente a nitrofurantoína en el caso de la anafilaxia (mecanismo de hipersensibilidad del tipo I) y con pruebas epicutáneas a nitrofurazona en el caso de la dermatitis de contacto (mecanismo de hipersensibilidad del tipo IV) fue positivo; ambos pacientes toleraron otros nitrofuranos no implicados en la reacción. Encontramos pocos casos de alergia a estos fármacos en la literatura revisada. Aunque en el caso de nuestros pacientes no existió reactividad cruzada con otros fármacos que contienen el anillo furano, para poder confirmar esta observación se necesitan más estudios


Introduction: Nitrofurantoin and nitrofurazone are antibacterial agents used in urinary tract and cutaneous infections respectively. Material and methods: Two cases of hypersensitivity are presented, one with anaphylaxis after taking nitrofurantoin and another with a localized reaction of contact dermatitis after using nitrofurazone. Results and conclusions: In both cases the allergic examination including skin tests and IgE determinations with nitrofurantoin in the case of anaphilaxis and with epicutaneous tests for nitrofurazone in the case of contact dermatitis was positive; both tolerated other nitrofurans not involved in the reaction. We found few cases of allergy to these drugs in the revised literature. Although in our cases there was no cross reactivity among nitrofurans, more estudies are necessary in order to confirm that this is a general rule


Assuntos
Masculino , Feminino , Adulto , Pessoa de Meia-Idade , Humanos , Nitrofuranos/efeitos adversos , Nitrofuranos , Hipersensibilidade/complicações , Nitrofurantoína/efeitos adversos , Nitrofurazona/efeitos adversos , Dermatite de Contato/diagnóstico , Anti-Infecciosos Locais/administração & dosagem , Anti-Infecciosos Locais/efeitos adversos , Antibacterianos/efeitos adversos , Dermatite/diagnóstico , Nitrofuranos/toxicidade , Dermatite/complicações , Hipersensibilidade/diagnóstico , Nitrofuranos/uso terapêutico , Dermatite/terapia
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