RESUMO
Etiologic factors and incidence of bronchial hyperreactivity as a 'stigma' of bronchial asthma were studied in 237 patients suffering from perennial atopic rhinitis. All pateints underwent detailed laryngologic and allergologic examiniation and pulmonary function tests at rest, after exercise, and after histamine inhalation. Most often the patients were sensitized tungal allergens. Bronchial hyperreactivity, typical of bronchial asthma, was observed in 48.52% of patients. Results were analysed statistically. It was concluded that early institution of causal therapy can cure the symptoms of rhinitis and prevent evolution of the disease into atopic bronchial asthma in patients already suffering from bronchial hyperreactivity.
Assuntos
Asma/etiologia , Rinite Alérgica Perene/complicações , Adolescente , Adulto , Fatores Etários , Alérgenos , Asma/diagnóstico , Asma/prevenção & controle , Asma Induzida por Exercício , Feminino , Histamina , Humanos , Imunoglobulina E/análise , Medidas de Volume Pulmonar , Masculino , Pessoa de Meia-Idade , Rinite Alérgica Perene/diagnóstico , Testes CutâneosRESUMO
A trial was undertaken to evaluate the occurrence of bronchial hyperreactivity, typical of bronchial asthma, in 50 patients with hay fever (rhinitis allergica) and 45 patients with rhinitis vasomotorica nonallergica, as opposed to a group of healthy subjects and patients with bronchial asthma. All the patients were subjected to spirographic examinations at rest (VC, FEV1, ETT, SI), after exercise (PWC170), and after histamine inhalation. The authors believe that it is expedient to study bronchial hyperreactivity in patients with hay fever and rhinitis vasomotorica nonallergica in that it affords possibilities for the prevision of the conceivable unfavourable evolution of the disease towards the atopic or non-atopic bronchial asthma, as well as for the taking of adequate preventive and therapeutic measures.