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1.
Artigo em Inglês | MEDLINE | ID: mdl-21370718

RESUMO

BACKGROUND: Burnout is a worrying problem in the medical profession and has proven to be highly prevalent in all the care settings and specialty areas in which it has been studied.We applied 2 widely used questionnaires to analyze the working conditions of Spanish allergists in terms of quality of professional life and degree of burnout perceived. METHODS: Participants completed 2 questionnaires: the 22-item Maslach scale, a structured questionnaire covering different aspects of the feelings and attitudes of professionals toward their work and patients; and the Spanish Quality of Professional Life Questionnaire (CPV-35), a 35-item questionnaire evaluating job satisfaction and perceived quality of life at work. RESULTS: We received 404 questionnaires from throughout Spain. The main sources of motivation were better pay (94.4%), more available resources/technology (85.1%), access to research activities (81%), and promotion in one's professional career (80.1%). Analysis of the scores from the Maslach scale revealed that two-thirds of the allergists interviewed experienced medium and high levels of negative burnout (67.9% and 66.2%, respectively, for emotional exhaustion and depersonalization). This situation was in part compensated for by the fact that a slightly lower proportion of the group (59.2%) obtained very high scores on personal accomplishment in their work. Analysis of the scores from the CPV-35 questionnaire revealed 3 complementary aspects of job satisfaction: perceptions of the workload borne (5.8), management support available to cope with daily patient workload (5.6), and levels of intrinsic motivation for work (7.7), which was the highest value. The score for the item summarizing self-perceived overall quality of working life was acceptable (6.4). CONCLUSION: Promoting intrinsic motivation of Spanish allergists using the motivating factors identified in this study could protect against professional burnout.


Assuntos
Esgotamento Profissional/epidemiologia , Esgotamento Profissional/etiologia , Satisfação no Emprego , Médicos/psicologia , Adulto , Idoso , Estudos Transversais , Feminino , Humanos , Hipersensibilidade/terapia , Masculino , Pessoa de Meia-Idade , Motivação , Qualidade de Vida , Espanha/epidemiologia , Carga de Trabalho/estatística & dados numéricos
2.
Arch. alerg. inmunol. clin ; 40(3): 91-94, 2009.
Artigo em Espanhol | LILACS | ID: biblio-966491

RESUMO

Antecedentes. Se ha descripto una relación entre la hipersensibilidad respiratoria tipo I frente a antígenos aviares y la alergia alimentaria a la yema de huevo. Dicha asociación se denomina síndrome ave-huevo, y el responsable de dicho cuadro es la alfa-livetina o seroalbúmina de pollo, un antígeno presente tanto en la yema del huevo como en las plumas, suero y excrementos de las aves. Materiales y métodos. Estudiamos una paciente con síntomas de alergia alimentaria tras la ingesta de huevo, quien además sufría de síntomas respiratorios (rinitis/asma) causados por la exposición a aves. Se realizaron pruebas cutáneas con huevo, alfa-livetina, pollo crudo y cocido, y plumas. La IgE sérica específica fue identificada por técnica de microarrays de alérgenos (Immuno CAP ISAC). Resultados. Los prick test fueron positivos para alfa-livetina (8 mm), pollo crudo (8 mm) y plumas de gallina (7 mm). La determinación de IgE sérica específica fue de 16,61 (kU/l) para alfa­livetina. Conclusiones. El síndrome ave-huevo es producido por la sensibilización a la alfa livetina, un alérgeno que puede actuar tanto por vía alimentaria como por vía inhalatoria. Según nuestro conocimiento, es el primer caso diagnosticado a través de la técnica de microarray de alérgenos.(AU)


Background: A relationship between type I hypersensitivity with respiratory symptoms due to bird antigens and allergy to egg yolk has been described. This association is known as bird-egg syndrome, which is caused by sensitization to chicken serum albumin (alpha-livetin), present in bird feathers and serum, and egg yolk. Material and methods: We studied one patient with food allergy to egg yolk who also suffered from respiratory symptoms (rhinitis- asthma) caused by exposure to birds. Sensitization to egg yolk and bird antigens was investigated by skin prick test. Specific IgE was investigated using allergens Microarrays (Immuno CAP ISAC). Results:Our patient had a positive skin prick test to: chicken serum albumin (alpha livetin): 8 mm, bird feathers: 7 mm, raw chicken: 8 mm. Specific IgE to alpha livetin was 16.61 (kU/l). Conclusions: Bird-egg syndrome is due to a sensitization to alpha-livetin, an allergen that can act either on the respiratory or the digestive way. In our knowledgement, this is the first case described using allergen Microarrays technique.(AU)


Assuntos
Humanos , Feminino , Pessoa de Meia-Idade , Hipersensibilidade a Ovo , Asma , Rinite
3.
Allergol Immunopathol (Madr) ; 36(5): 291-302, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-19080802

RESUMO

Continuing medical education (CME) is a critical tool as well as a generally accepted concern for physicians, while being both a commitment and an obligation for the Administration. In Spain, during the past decades, CME has been a constant concern of many groups; however, it was not until the end of the eighties when efforts at accreditation began to emerge. A significant step was the establishment of the Commission on Continuing Education of Health Professions of the National Health System, an agency of the Consejo Interterritorial (Inter-regional Council), whose accreditation system started in 1998, using the figure of Sector Conference, included in Articles 5 and 8 of the Ley de Régimen Jurídico de las Administraciones Públicas y del Procedimiento Administrativo Común (Law on Legal Regime of Public Administration and Common Administrative Procedures), as Senior Technical Body on the matter. Since then, various Regional Committees and the Spanish Accreditation System of Continuing Medical Education (SEAFORMEC) have been created. Although we earlier published a guide, in this manuscript we have updated the steps that must be taken to apply for accreditation of CME activity in Allergology, explaining the different items in the official application form, clarifying to whom the request should be addressed, and outlining the foundations on which the activities will be evaluated for accreditation purposes, in order to ensure that the training meets the highest standards for quality, so that the objectives that lead to achieving maximum performance and competence of health professionals may be reached.


Assuntos
Acreditação/normas , Alergia e Imunologia/educação , Educação Médica Continuada/normas , Ocupações em Saúde/normas , Acreditação/organização & administração , Alergia e Imunologia/normas , Protocolos Clínicos/normas , Educação Médica Continuada/organização & administração , Humanos , Sociedades Científicas/organização & administração , Sociedades Científicas/normas , Espanha
4.
Allergol Immunopathol (Madr) ; 36(2): 101-9, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-18479662

RESUMO

The aim of this article is to provide an introduction to using databases from the Thomson ISI Web of Knowledge, with special reference to Citation Indexes as an analysis tool for publications, and also to explain the meaning of the well-known Impact Factor. We present the partially modified new Consultation Interface to enhance information search routines of these databases. It introduces distinctive methods in search bibliography, including the correct application of analysis tools, paying particular attention to Journal Citation Reports and Impact Factor. We finish this article with comment on the consequences of using the Impact Factor as a quality indicator for the assessment of journals and publications, and how to ensure measures for indexing in the Thomson ISI Databases.


Assuntos
Bibliografias como Assunto , Bases de Dados Factuais , Hipersensibilidade Imediata , Internet/estatística & dados numéricos , Medical Subject Headings/estatística & dados numéricos , Animais , Metodologias Computacionais , Humanos , National Library of Medicine (U.S.) , Estados Unidos
5.
Arch. alerg. inmunol. clin ; 39(1): 22-31, 2008. ilus, tab
Artigo em Espanhol | LILACS | ID: biblio-966906

RESUMO

La Alergología Clínica y las ciencias médicas generan día a día preguntas a los que las practicamos. Para responder a estas preguntas existen distintos tipos de fuentes; sin embargo, estamos obligados a buscar la mejor información posible para resolverlas. Los tiempos en los que vivimos y desarrollamos la profesión médica exigen información de calidad dado el mar de datos disponibles en las fuentes a nuestra disposición; de entre todas las conocidas, es Internet la que mayor volumen nos ofrece. El adecuado manejo de este recurso nos permitirá acceder a información que debería ser por regla general basada en la evidencia. El objetivo de este artículo es proponer una guía de recursos web de utilidad para la práctica diaria en alergología.(AU)


Clinic Allergology and medical sciences practice are constant generators of questions. To answer these questions there are multiple sources; however, we most search for the best possible information. Times we are living in and practice medical profession require high quality information because of the great sea of data we find in the available sources; from all of these, internet is the one that offers a great volume of information. An appropriate use of this resource will allow us to achieve information that should be always evidence based medicine. The objective of this article is to propose a guide of web resources useful in daily Allergology practice. (AU)


Assuntos
Medicina Baseada em Evidências , Alergia e Imunologia , Centros de Informação , Internet
6.
Allergol Immunopathol (Madr) ; 35(6): 264-75, 2007.
Artigo em Inglês | MEDLINE | ID: mdl-18047819

RESUMO

INTRODUCTION: PubMed is the most important of the non-specialized databases on biomedical literature. International and quickly updated is elaborated by the American Government and contains only information about papers published in scientific journal/s. Although it can be used as an unique Data Base, as a matter of fact is the addition of several subgroups (among them MEDLINE) that can be searched simultaneously. OBJECTIVES: To present the main characteristics of PubMed, as well as the most important procedures of search, for obtaining efficient results in searches on allergology. CHARACTERISTICS AND SEARCH PROCEDURES: PubMed is elaborated by the American Administration, that condition the character of the registered papers, 90 % of them are written in English in American (50 %) or British (20 %) Journals. Because of this, the information for certain specialties or countries must be obtained from other sources. This paper shows how PubMed allows to search in natural language due to the Automatic Term Mapping that links terms from the natural language with the descriptors producing searches with a higher sensitivity although with a low specificity. Nevertheless the MeSH (Medical Subject Headings) thesaurus allows to translate those terms from the natural language to the equivalent descriptor, as well as to make queries in the PubMed's documental language with a high specificity but with lower sensitivity than the natural language. The use of union (OR), intersection (AND) and exclusion (NOT) operators, as well as tags, such as delimiters of the search fields, allows to increase the specificity of the results. Similar results may be obtained with the use of Limits. Searches done using Clinical Queries are very interesting due to their direct clinical application and because allow to find systematic reviews, metaanalysis or clinically oriented papers (treatment, diagnostic, etiology, prognosis or clinical prediction guides) on the area of interest. Other procedures such as the Index, History of searches, and the widening of the selection using Related Articles and the storing of separate results in the Clipboard to be kept by the user, are presented in this paper.


Assuntos
Alergia e Imunologia , Bibliografias como Assunto , MEDLINE/estatística & dados numéricos , Medical Subject Headings/estatística & dados numéricos , PubMed/estatística & dados numéricos , Indexação e Redação de Resumos , Alergia e Imunologia/educação , Armazenamento e Recuperação da Informação , Sistemas de Informação/estatística & dados numéricos , Automação de Bibliotecas , Processamento de Linguagem Natural , Descritores , Unified Medical Language System
7.
Allergol Immunopathol (Madr) ; 35(5): 216-20, 2007.
Artigo em Inglês | MEDLINE | ID: mdl-17923077

RESUMO

BACKGROUND: Anisakis simplex is a helmintic parasite of fish and shellfish that can induce in humans, after consumption, an immunoallergic response with multiorganic affectation, especially cutaneous (urticaria and angioedema), gastrointestinal and anaphylactic symptoms. Nephrotic syndrome can be produced by helmintic infection, especially schistosomiasis. OBJECTIVE: To report the unusual case of nephrotic syndrome associated to an allergic response to A. simplex. METHODS: A 60-year-old woman suffered from nephrotic syndrome three weeks after a generalized urticaria, angioedema and nauseas episode, following a raw anchovy's ingestion. Etiological study of nephrotic syndrome and urticaria/angioedema, cutaneous test, serum total and specific IgE determination, IgE-immunoblotting, and HLA typing were performed for diagnostic evaluation. RESULTS: Prick-test with A. simplex extract was positive. It was observed a significance increase of total IgE to the three weeks of anchovy's ingestion and then it diminished progressively. Specific IgE to A. simplex was > 100 UI/ml. Immunoblotting to A. simplex, revealed the existence of IgE-binding proteins with molecular mass ranging from 20 kDa to 99 kDa. Class I HLA expressed by the patient was type HLA-B12. Other secondary causes of nephrotic syndrome were carefully ruled out. CONCLUSIONS: These data suggest, for the first time, the association between allergy to A. simplex and nephrotic syndrome.


Assuntos
Anisaquíase/diagnóstico , Hipersensibilidade Imediata/diagnóstico , Hipersensibilidade Imediata/imunologia , Síndrome Nefrótica/diagnóstico , Síndrome Nefrótica/imunologia , Anisaquíase/imunologia , Feminino , Humanos , Imunoglobulina E/sangue , Pessoa de Meia-Idade
8.
Allergol Immunopathol (Madr) ; 35(4): 136-44, 2007.
Artigo em Inglês | MEDLINE | ID: mdl-17663922

RESUMO

BACKGROUND: Non-compliance is a common cause of failed medical action, contributing to absence of regular check-ups. Our group has already published studies that analyse the level of non-compliance with appointments amongst patients attending our Allergology clinic, and we have made proposals for improvement. OBJECTIVE: This article evaluates the results obtained three years after setting up and launching telephone reminders for patients' first appointments. METHODS: All patients who were given appointments for first and subsequent visits during 2005 were included. A total of 18215 appointments were studied (3115 first appointments and 15100 subsequent ones). Of these, there were 2479 missed appointments (438 first appointments and 2041 subsequent ones), corresponding to 2215 patients (412 first visits and 1803 subsequent ones), with a mean of 1.12 appointments/patient/year. RESULTS: The non-compliance rate was 13.61%. The most common non-compliers were men (14.11% missed appointments against 13.24% missed appointments in women) and in the age range 20-29 years and 30-39 years (16.46% and 15.28% non-compliance, respectively). The mean age of non-compliers was 34.55 +/- 14.73 years. We observed a significant number of patients who missed more than one appointment (5.12% of all non-compliers and 0.7% of all patients). Differences were found in the degree of non-compliance depending on the type of appointment (14.06% non-compliance with first visits and 13.52% with subsequent visits). We observed a significant increase in missed appointments during the Summer holidays; July and August showed the highest percentage of missed appointments for both the first visit (20.62% in July and 23.59% in August) and subsequent visits alike (16.14% in July and 14.23% in August). CONCLUSIONS: A slight reduction in non-compliance was observed after implementing the proposals made in our previous study. In view of the high costs incurred from missed appointments, the government should finance studies to reduce this problem. The causes of non-compliance may be difficult to control, including present access to the public health service. We must be alert to and/or take preventive measures in young patients and cases of previous non-compliance. The degree of non-compliance is a quality indicator, because it reduces the yield of appointments, and it evidences a lack of cohesion of patients with Primary Health Care Units for first appointments, and with Specialist Care Units for subsequent appointments. Once certain levels of attendance have been attained, it is difficult to achieve an effect on this point in order to improve attendance rates.


Assuntos
Alergia e Imunologia , Agendamento de Consultas , Ambulatório Hospitalar/estatística & dados numéricos , Pacientes Ambulatoriais/estatística & dados numéricos , Sistemas de Alerta , Recusa do Paciente ao Tratamento/estatística & dados numéricos , Adulto , Idoso , Algoritmos , Feminino , Hospitais Universitários , Humanos , Masculino , Pessoa de Meia-Idade , Avaliação de Programas e Projetos de Saúde , Estações do Ano , Espanha
9.
Allergol Immunopathol (Madr) ; 34(6): 252-6, 2006.
Artigo em Inglês | MEDLINE | ID: mdl-17173842

RESUMO

Health resources are limited and consequently real cost generators must be identified to optimize resources. In the present article, we describe the structure of the Homogeneous Functional Groups (HFG) for Diagnostic Techniques in the Allergy Department of the Virgen de la Arrixaca University Hospital in Murcia (Spain) and the healthcare products generated. Based on the 2005 budget, variable costing was used to calculate the costs of the healthcare products generated (skin tests, investigation of drug allergies, etc.) by one of the three HFG (the HFG for complementary investigations). On the basis of these costs, and taking as the unit the cost of one skin prick test, we assigned relative units of value (RUV) to each of the products in our services portfolio. The following conclusions can be drawn: 1) the current system of variable costing provides information, which should be useful to health professionals; 2) the real cost generators in the microcosm of daily clinical practice should be identified to allow resource reallocation; 3) the costing system used enables modifications to be made that allow decision making on optimal use of the budget; 4) to take the decisions required to optimize resources, clinical management and complementary tests should go hand-in-hand.


Assuntos
Alergia e Imunologia/economia , Custos e Análise de Custo/normas , Testes Diagnósticos de Rotina/economia , Hipersensibilidade/diagnóstico , Testes Respiratórios , Coleta de Dados , Custos de Cuidados de Saúde/estatística & dados numéricos , Departamentos Hospitalares/economia , Hospitais/estatística & dados numéricos , Humanos , Hipersensibilidade/economia , Imunoquímica/economia , Imunoglobulina E/análise , Recursos Humanos em Hospital/economia , Testes Cutâneos/economia , Espanha , Espirometria/economia
10.
Allergol Immunopathol (Madr) ; 34(4): 150-5, 2006.
Artigo em Inglês | MEDLINE | ID: mdl-16854348

RESUMO

Health resources are limited and consequently real cost generators must be identified to optimize resources. In the present article, we describe the structure of the Allergy Unit of the University Hospital Virgen de la Arrixaca in Murcia (Spain), the health area in which allergic patients are attended, and the final healthcare products generated. Based on the 2004-2005 budget, variable costing was used to calculate the costs of the healthcare products generated (first visits, subsequent visits, and diverse laboratory tests) by two of the three homogeneous functional groups (HFG), i.e., HFG of the ambulatory service and HFG of complementary tests. The following conclusions can be drawn: 1) the current system of variable costing provides information, which should be useful to health professionals; 2) the real cost generators in the microcosm of daily clinical practice should be identified to allow resource reallocation; 3) the costing system used enables modifications to be made that allow decision making on optimal use of the budget; 4) clinical management and complementary tests should go hand in hand with a view to optimizing resources.


Assuntos
Alergia e Imunologia/economia , Custos Diretos de Serviços , Custos Hospitalares/estatística & dados numéricos , Departamentos Hospitalares/economia , Hospitais Universitários/economia , Ambulatório Hospitalar/economia , Alergia e Imunologia/estatística & dados numéricos , Orçamentos/estatística & dados numéricos , Administração de Caso/economia , Administração de Caso/estatística & dados numéricos , Técnicas de Laboratório Clínico/economia , Técnicas de Laboratório Clínico/estatística & dados numéricos , Alocação de Custos/estatística & dados numéricos , Custos Diretos de Serviços/estatística & dados numéricos , Custos de Cuidados de Saúde/estatística & dados numéricos , Mão de Obra em Saúde/economia , Mão de Obra em Saúde/estatística & dados numéricos , Departamentos Hospitalares/estatística & dados numéricos , Hospitais Universitários/estatística & dados numéricos , Humanos , Ambulatório Hospitalar/estatística & dados numéricos , Educação de Pacientes como Assunto/economia , Educação de Pacientes como Assunto/estatística & dados numéricos , Recursos Humanos em Hospital/economia , Recursos Humanos em Hospital/estatística & dados numéricos , Espanha
11.
Allergol Immunopathol (Madr) ; 33(3): 172-4, 2005.
Artigo em Inglês | MEDLINE | ID: mdl-15946632

RESUMO

Cold urticaria is defined as a urticarial and/or angioedematous reaction of the skin to contact with cold objects, water or air. Types of urticaria associated with infectious diseases, such as mononucleosis, rubeola, varicella, syphilis, hepatitis, and HIV infection have been reported. We present the case of a patient who developed cold urticaria associated with acute serologic toxoplasmosis. The patient was a 34-year-old man who for the previous 2 months had presented cutaneous pruritus accompanied by several papular lesions in parts of the skin exposed to cold as well as those in contact with cold water. The result of an "ice-cube test" was positive. Serologic tests for Toxoplasma gondii showed an IgG level of 68 UI/ml and were positive for IgM, while a test for cryoglobulins was positive. One month later cryoglobulins were negative and a serologic test for T. gondii showed an IgG concentration of 75 UI/ml and positive IgM. Three months later cryoglobulins were still negative, IgG for T. gondii was 84 UI/ml, and IgM was positive. After 6 months cryoglobulins were still negative, IgG level was 68 UI/ml and IgM was still slightly positive. In the final evaluation, 14 months later, IgG level was 32 UI/ml and IgM was negative. The patient continues to present clinical manifestations of cold urticaria, although he has experienced some improvement and his tolerance to cold has increased after treatment with cetirizine.


Assuntos
Temperatura Baixa/efeitos adversos , Crioglobulinemia/etiologia , Toxoplasmose/complicações , Urticária/etiologia , Doença Aguda , Adulto , Animais , Anticorpos Antiprotozoários/sangue , Crioglobulinas/análise , Crioglobulinas/imunologia , Hipersensibilidade Alimentar/complicações , Humanos , Imunoglobulina G/sangue , Imunoglobulina G/imunologia , Imunoglobulina M/sangue , Imunoglobulina M/imunologia , Masculino , Hipersensibilidade Respiratória/complicações , Toxoplasma/imunologia , Toxoplasmose/diagnóstico , Toxoplasmose/imunologia
14.
Allergol Immunopathol (Madr) ; 30(4): 245-9, 2002.
Artigo em Inglês | MEDLINE | ID: mdl-12199971

RESUMO

OBJECTIVE: To compare the clinical effectiveness of pressurized metered-dose inhalers (MDIs) with that of dry powder inhalers (DPIs) in delivering short-acting b2-agonists in children with asthma. METHODS: Searches were performed in Medline (1997-March 2002), the Cochrane Library Database and the Embase reference lists of review articles and clinical trials. In addition, the international headquarters of b2-agonist manufacturers were contacted. We performed a review of randomized controlled trials. RESULTS: Ten randomized controlled trials were included. No differences in clinical effectiveness were found between MDIs and PDIs. Two studies reported that fewer adverse events occurred when the Turbuhaler was used. Two long-term studies in children found that children preferred the MDI to the Rotohaler. CONCLUSIONS: 1) In stable asthma, short-acting b2 bronchodilators in standard MDIs are as effective as dry powder inhalers. 2) Pooling of results was limited by the small number of studies and therefore no overall conclusions could be drawn. 3) From the limited data available, we found little or no evidence for an additional clinical benefit of DPI devices over standard MDIs in children with asthma.


Assuntos
Agonistas Adrenérgicos beta/administração & dosagem , Antiasmáticos/administração & dosagem , Asma/tratamento farmacológico , Broncodilatadores/administração & dosagem , Agonistas Adrenérgicos beta/efeitos adversos , Agonistas Adrenérgicos beta/uso terapêutico , Albuterol/administração & dosagem , Albuterol/efeitos adversos , Albuterol/uso terapêutico , Antiasmáticos/efeitos adversos , Antiasmáticos/uso terapêutico , Broncodilatadores/efeitos adversos , Broncodilatadores/uso terapêutico , Criança , Pré-Escolar , Estudos Cross-Over , Humanos , Inaladores Dosimetrados , Nebulizadores e Vaporizadores , Aceitação pelo Paciente de Cuidados de Saúde , Pós , Ensaios Clínicos Controlados Aleatórios como Assunto , Receptores Adrenérgicos beta 2/efeitos dos fármacos , Terbutalina/administração & dosagem , Terbutalina/efeitos adversos , Terbutalina/uso terapêutico
15.
Allergol Immunopathol (Madr) ; 30(2): 94-9, 2002.
Artigo em Inglês | MEDLINE | ID: mdl-11958741

RESUMO

The causal role of immunoglobulin E (IgE) in triggering the cascade of biochemical events leading to allergic disease is well established. Treatments that selectively inhibit IgE activity are a logical approach in managing the allergic response. Omalizumab is a recombinant humanised monoclonal antibody which specifically binds to the Cε3 domain of immunoglobulin (Ig) E, the site of high-affinity IgE receptor binding. The clinical benefit and steroid-sparing effect of treatment with the anti-immunoglobulin-E (IgE) antibody, Omalizumab, was assessed in patients with moderate-to-severe allergic asthma and seasonal allergic rhinitis. Intravenous and subcutaneous administration of anti-IgE mAb reduces circulating levels of IgE in atopic patients to low levels commonly seen in non-atopic individuals. Anti-IgE therapy offers protection against allergen-induced bronchoconstriction, reduces the need for short acting inhaled beta 2-agonist and corticosteroids among asthmatic patients and reduces severity of symptoms of allergic rhinitis. Adverse events were infrequent in clinical trials of omalizumab, and not significantly different from placebo. The most frequent drug-related event was mild to moderate urticaria. They do not induce anaphylaxis and the occurrence of antibodies against anti-IgE mAb is sporadic. The results of cited studies suggest that humanized anti-IgE monoclonal antibodies may have important immunotherapeutic benefit for treatment of allergic disorders.


Assuntos
Antialérgicos/uso terapêutico , Antiasmáticos/uso terapêutico , Anticorpos Anti-Idiotípicos/uso terapêutico , Anticorpos Monoclonais Humanizados/uso terapêutico , Asma/tratamento farmacológico , Rinite Alérgica Sazonal/tratamento farmacológico , Humanos , Omalizumab
16.
Allergol Immunopathol (Madr) ; 29(4): 129-32, 2001.
Artigo em Inglês | MEDLINE | ID: mdl-11674926

RESUMO

Chronic idiopathic urticaria (CIU) is a common skin condition that affects 0.1-3 % of people in the USA and Europe and accounts for nearly 75 % of all chronic urticaria cases. Up to 40 % of patients who have chronic urticaria for more than 6 months still have urticarial wheals 10 years later. The therapeutic management should first be oriented towards palliation of symptoms. A 2 % solution of ephedrine as a local spray is very useful for oropharyngeal edema. H1 antihistamines with a low potential for sedation are the most important first-line treatment. Combinations of various antihistamines may be useful in suppressing symptomatology. These include: a) First generation H1 antihistamines; b) Combinations of first and second generations using non-sedating agents in the morning and first generation drugs at night; c) Combinations of second generation antihistamines; d) Combination of doxepin with a first or second generation antihistamine; e) Combination of an H2 anti-receptor antihistamine (eg, cimetidine or ranitidine) with a first or second generation antihistamine. Preliminary reports suggest that desloratadine and anti-leukotrienes may be effective in treating some patients with chronic idiopathic urticaria.


Assuntos
Antagonistas dos Receptores Histamínicos H1/uso terapêutico , Urticária/tratamento farmacológico , Adulto , Anafilaxia/tratamento farmacológico , Angioedema/tratamento farmacológico , Anti-Inflamatórios/uso terapêutico , Antidepressivos Tricíclicos/uso terapêutico , Criança , Doença Crônica , Método Duplo-Cego , Doxepina/uso terapêutico , Custos de Medicamentos , Efedrina/uso terapêutico , Europa (Continente)/epidemiologia , Glucocorticoides/uso terapêutico , Antagonistas dos Receptores Histamínicos H1/efeitos adversos , Antagonistas dos Receptores Histamínicos H1/classificação , Humanos , Imunossupressores/uso terapêutico , Estudos Multicêntricos como Assunto , Cuidados Paliativos , Plasmaferese , Prevalência , Qualidade de Vida , Ensaios Clínicos Controlados Aleatórios como Assunto , Esteroides , Estados Unidos/epidemiologia , Urticária/economia , Urticária/epidemiologia , Urticária/terapia
18.
Allergol Immunopathol (Madr) ; 25(5): 249-58, 1997.
Artigo em Inglês | MEDLINE | ID: mdl-9395010

RESUMO

Platelet-activating factor (PAF), identified as 1-O-alkyl-2-acetyl-sn-glyceryl-3-phosphorylcholine, exhibits potent proinflammatory properties. PAF is produced by numerous cell types, including endothelial cells, neutrophils, monocytes, macrophages, basophils, eosinophils and mastocytes. Since the discovery and identification of the chemical structure of PAF, a large variety of specific PAF-receptor antagonists, both natural and synthetic compounds, have been described. Intensive research has been conducted and development programs set up by more 25 pharmaceutical companies world-wide, studying the therapeutic interest of more than 50 PAF-receptors antagonists in various pathophysiological conditions. Medline (1966-1996), Embase (Excerpta Medica; 1974-1996), and other biomedical and drug directory databases were searched to identify English-language articles (basic science, clinical trial research, and review articles) and abstracts of conference proceedings on PAF receptor antagonists and related terms. The most important PAF receptor antagonists are reviewed with their effectiveness in various experimental tests. Fundamentally, PAF antagonists may be divided in two groups: natural and synthetic compounds. Natural (Ginkgolides, Kadsurenone, Chantancin, Phomactin, Swietemohonin A, Prehispalone, THC-7-oic acid, Aglafoline, FR 900452, PCA 4248 and SCH 37370), and synthetic antagonists (CV-3988, CV-6209, SRI 63-072, SRI 63-441, UR-10324, UR-11353, E-5880, CL 184005, 6-Mono and Bis-aryl phosphate antagonists, TCV-309, Ro-74719, WEB 2086, Y 24180, BN 50726, BN 50727, BN 50730, BN 50739, Ro 24-4736, Ro 24-0238, RP 55778, RP 59227, RP 66681, YM 264, YM 461, SM 10661, SR 27417, UK 74505, BB 182, BB 823, BB 654, SDZ 64-412, SDZ 65-123, L 652731, L 659898, L 668750, L 671284, L680573, L 680574, CIS 19, ABT-299 and Pinusolide) have a great variability in their chemical structure that might have importance in their different pharmacological profile. The great majority of these drugs are under development, and only a few have undergone clinical trials.


Assuntos
Fator de Ativação de Plaquetas/antagonistas & inibidores , Humanos
19.
Allergol Immunopathol (Madr) ; 25(1): 36-51, 1997.
Artigo em Inglês | MEDLINE | ID: mdl-9111875

RESUMO

Treatment of chronic urticaria presents a challenge to both practitioner and patient. Traditional H1 antagonists with good efficacy but substantial side effects are being supplanted in many cases by nonsedating H1. Combinations of H1 and H2 antagonists offer improved results for selected patients. Second-line therapies include a wide range of drugs such as doxepin, dapsone, attenuated androgens, calcium antagonists, antimalarials, gold and methotrexate. The most effective and regularly used second-line agents are corticosteroids. These are best limited to short term crisis management, except in severe recalcitrant cases, and in patients with pressure urticaria or urticarial vasculitis. Further development and investigation of mast cell stabilisers and inhibitors of urticaria mediators other than histamine hold promise. A better understanding of the underlying pathogenesis remains the greatest hope of formulating rational and effective therapy.


Assuntos
Antagonistas dos Receptores Histamínicos H1/uso terapêutico , Urticária/tratamento farmacológico , Doença Crônica , Antagonistas dos Receptores Histamínicos H1/farmacocinética , Antagonistas dos Receptores H2 da Histamina/farmacocinética , Antagonistas dos Receptores H2 da Histamina/uso terapêutico , Humanos
20.
Allergol Immunopathol (Madr) ; 25(6): 302-9, 1997.
Artigo em Inglês | MEDLINE | ID: mdl-9469207

RESUMO

Epidemiological data demonstrate that viral infections are the most important trigger for acute asthma symptoms in children, and this association persists in many adults with asthma. Studies on volunteers experimentally infected with rhinoviruses (RV) suggest that atopy alone does not predispose to unusually severe symptoms. In contrast, experimental models combining viral infection and allergen exposure have identified potential links between virus-induced and allergen-induced inflammation. While in vitro studies suggest that cytokines may be an important part of this association, their role must be verified by sampling lower airway fluids and tissues in vivo after experimental and/or natural rhinovirus infections. Although it has long been recognized that the common cold is a potent trigger for symptoms of asthma, the mechanisms underlying the association between upper respiratory infection and increased lower airway obstruction remain obscure. The use of experimental infection of volunteers with or without respiratory allergies has enabled direct comparisons of common cold symptoms in these two groups. Furthermore, techniques such as bronchoalveolar lavage and segmental antigen challenge have been used to directly sample lower airway fluids and tissues during acute viral infection.


Assuntos
Bronquite/virologia , Resfriado Comum/virologia , Hipersensibilidade Respiratória/etiologia , Rhinovirus/fisiologia , Bronquite/imunologia , Humanos
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