The study involved 197 patients at Clinical Immunology - Allergy Department of Bach Mai Hospital. These patients were diagnosed with asthma based on diagnostic criteria of the American Thoracic Association. Method: Clinical examination. Time of disease onset and factors that related to the arise of first breath difficulty. Date was processed by statistic method. The results showed that asthma could arise at any age. The prevalence is highest (39.59%) in children and teens (0-20 years of old) and lowest (4.06%) in group of 60 years of old or more. Among causal factors of asthma, respiratory inflammations such as bronchitis, pneumonia, tonsillitis and allergic rhinitis were most common (67.5%).
Asthma ; etiology

Asthma is one of the common chronic respiratory diseases, and its incidence has been increasing worldwide in recent years. In the context of climate change, the frequency and intensity of extreme weather events are increasing. A large body of evidence suggests that exposure to extreme temperatures can increase the risk of asthma attacks, but the underlying mechanisms that trigger asthma attacks are still unclear. This study aims to systematically review the research progress on the association between extreme temperature and asthma attacks, and to elucidate the synergistic effects of extreme temperatures, indoor/outdoor environments, and individual vulnerabilities on asthma attacks. Additionally, this review discusses the potential mechanisms of asthma attacks triggered by extreme temperature, and highlights the important role of immune regulation and neuroregulation in the inflammatory response of asthma induced by extreme temperature. Moreover, we propose a potential mechanism framework to explain the disease pathogenesis of asthma which is induced by the interactions between extreme temperature and environmental factors, in order to provide a scientific basis for addressing the adverse impacts of extreme weather events and climate change.
Humans ; Temperature ; Asthma/etiology* ; Climate Change

Animals ; Asthma ; etiology ; Eosinophils ; physiology ; Mice

The manifestations of pediatric gastroesohageal reflux (GER) are varied and complex. Extra-oesophageal symptoms, including GER-related respiratory diseases, ear, nose and throat diseases, oral diseases and neuropsychiatric symptoms, are thought to be major manifestations of pediatric GER, but the causal relationship between GER and these extra-oesophageal symptoms is still unclear. Therefore, we describe the progress of research on the relationship between GER and asthma, chronic cough, laryngitis, pharyngitis, laryngeal papilloma, sinusitis, otitis media, dental erosion, apparent life-threatening event, and the crying baby syndrome in this review. It provides new strategies for the diagnosis and treatment of GER-related diseases in children.
Asthma ; etiology ; Cough ; etiology ; Gastroesophageal Reflux ; complications ; Humans ; Laryngitis ; etiology ; Sinusitis ; etiology ; Tooth Erosion ; etiology

Asthma ; etiology ; Congresses as Topic ; Humans ; Rhinitis, Allergic, Perennial ; etiology

The incidence of allergic diseases (asthma, allergic rhinitis, atopic dermatitis and food allergy) increased gradually over recent decades, and an increasing number of patients are suffering from allergic diseases, thus the rise in allergic disease incidence warrants concern. Researchers have already had a deeper understanding of the pathogenesis of allergic diseases. Mounting evidence has shown that the eosinophils play an important role in the pathogenesis of allergic diseases. Many systematic studies have been conducted about eosinophils, therefore, this review will provide a summary on recent progress in eosinophils and allergic diseases.
Asthma ; etiology ; immunology ; Dermatitis, Atopic ; etiology ; immunology ; Eczema ; etiology ; immunology ; Eosinophils ; Food Hypersensitivity ; etiology ; immunology ; Humans ; Rhinitis, Allergic ; etiology ; immunology

Anxiety ; etiology ; Asthma ; psychology ; Child ; Child, Preschool ; Depression ; etiology ; Female ; Humans ; Male ; Mental Disorders ; etiology

Antigen Presentation ; Asthma ; blood ; etiology ; therapy ; Eosinophils ; physiology ; Humans

Airway Remodeling ; Asthma ; physiopathology ; Bronchial Hyperreactivity ; etiology ; Bronchitis ; physiopathology ; Humans

Asthma, often begins in childhood, can affect dental health. In return, dental treatment and dental anxiety can lead to an acute asthmatic attack. This article reviews the potential influence of asthma on dental treatment and dental medications and specifically describes the modes of dental conscious sedation in asthmatic patients.
Anesthesia, Dental ; methods ; Asthma ; etiology ; Dental Anxiety ; complications ; Humans