Bronchial Asthma Symptoms

In the World Health Organization and the US National Institutes of Health Organization revised "Global asthma control strategy" (2002) definition of asthma as "bronchial asthma by a variety of cells and cellular components involved in chronic airway inflammation, such inflammation is often associated with airway hyperresponsiveness, resulting in recurrent symptoms of wheezing, shortness of breath, chest tightness, and (or) cough, occurs at night and (or) in the morning, often accompanied by symptoms such extensive and varied airflow obstruction, or through self-treatment can be reversed. "

1. asthma symptoms manifested as paroxysmal cough, chest tightness and difficulty breathing. Some patients sputum, phlegm gradually eased when more than attack, without infection, often white sticky sputum, quality and tough, and sometimes rice-like or columnar mucus. The severity of the onset and duration of individual differences, the light only chest tightness, continued a few minutes, severe extreme difficulty in breathing, for several weeks or longer. Characteristic symptoms are reversible, that is, after treatment in a relatively short period of remission, partial remission natural, of course, no small part of which was sustained remission status. Often attack certain predisposing factors, many patients have episodes of apparent biological laws, daily at 2 to 6 attack or worsen, usually occurs in the spring and summer when the transfer or winter, some women (about 20%) before menstruation or during an asthma attack or worse. Note that atypical asthma. Some patients often paroxysmal cough as the only symptoms, often clinically misdiagnosed as bronchitis; some places adolescent patients with chest tightness during exercise, tight gas as the only clinical manifestations.

2. Signs Signs are wheezing breath, and breathing difficulties appear and disappear at the same time, in general, the higher the wheeze, fine, appeared in the end of expiration, the more severe asthma symptoms. Attack may have symptoms such as lung hyperinflation and barrel chest, percussion too voiceless, decreased breath sounds, etc., respiratory assistance and sternocleidomastoid muscle contraction increased, it can have severe cyanosis, expiratory jugular vein engorgement, odd mai, some critically ill patients, severe airflow limitation, wheezing disappeared, showing a "silent lung."