acute or slow onset, prior to the onset of asthma infants and young children tend to have 1 or 2 days of upper respiratory infection symptoms, including nasal itching, sneezing, flow of clear tears, rubbed my eyes, rubbed his nose and so th
acute or slow onset, prior to the onset of asthma infants and young children tend to have 1 or 2 days of upper respiratory infection symptoms, including nasal itching, sneezing, flow of clear tears, rubbed my eyes, rubbed his nose and so the performance can be significantly cough, wheezing . Older children are often more sudden onset, often with bursts of coughing as the start was followed by wheezing, breathing difficulties.
(A) acute onset of symptoms
Acute attack, the children with irritability, sitting breathing, shrugging wheezing, difficulties in order to breath even more significant, pale nose fan, bluish lips and nails, body cold sweats, auxiliary respiratory muscle contraction, private prosecution chest tightness, shortness of breath even when the words can not speak straight. After appropriate treatment, if the cough can be discharged after the white sticky sputum, the symptoms may offer some relief. Infants and young children with abdominal breathing mainly because of its thorax soft, and often does not appear to sit breathing, but often the parents holding Xi, overlooking the head affixed to the shoulders of the parents, emotional anxiety, irritability and so on. Inhale when the "three concave sign", that is, suprasternal fossa, supraclavicular fossa, the lower rib cage showed depression, and in the breath due to increased intrathoracic pressure, the Ministry of Counter-see protruding upper and lower sternum. Older children can be seen jugular vein engorgement. Auscultation may have wheezing sound, or wet and dry rale, and sometimes his breath sounds may be concealed, such as severe airway obstruction, respiratory sounds may be significantly reduced. Speed up the heart rate often occurred when emphysema palpable liver and spleen in the ribs, severe cases can be complicated by heart failure.
(B) the onset of symptoms of intermittent period
In the meantime patients often consciously chest discomfort, chest auscultation, diminished breath sounds with no wheezing sound, but most children with symptoms and signs all but disappeared.
(C) the symptoms of cough variant asthma
Airway hyperresponsiveness is the basis of bronchial asthma, airway hyperresponsiveness due to different degrees of clinical symptoms is also not the same, only a small number of patients showed symptoms of respiratory allergies, such as recurrent cough, cough timing array and the stimulation of the cough spasm. These patients can not breathe, not even dry sex rale, but there may be a history of allergic diseases such as eczema, allergic rhinitis or urticaria. The serum IgE may be increased, effective anti-allergy or asthma drugs. If you make determination of airway responsiveness (in the past said the bronchial provocation test), may be abnormal. This kind of cough as the main manifestations of asthma, also known as cough variant asthma, is often an early onset, mostly in the age of 3 had problems, such as, without special treatment, can develop typical asthma, cough may also have been expressed as variant asthma.
Repeated asthma attacks after a long period of time may lead to emphysema, then deepen the anteroposterior diameter of the thorax was barrel chest. In severe cases, growth retardation, its tall thin short, these children often accompanied by allergic rhinitis and sinusitis. Changes in childhood than if access to effective treatment, most will be restored.