What does airway hyperresponsiveness mean?

Airway hyperresponsiveness (AHR) is one of the hallmarks of asthma, which invariably correlates with the disease severity, and is defined as increased sensitivity and reactivity of the airways to numerous types of stimuli.

What are bronchial diseases?

Bronchial disorders can make it hard for you to breathe. The most common problem with the bronchi is bronchitis, an inflammation of the tubes. It can be acute or chronic. Other problems include. Bronchiectasis – a condition in which damage to the airways causes them to widen and become flabby and scarred.

Does asthma cause hyperactive bronchi?

Bronchial hyperresponsiveness is currently defined as an increase in sensitivity to a wide variety of airway narrowing stimuli. Most patients with asthma and chronic obstructive pulmonary disease (COPD) exhibit such an enhanced sensitivity.

What does hyperresponsiveness mean?

Introduction. Airway hyperresponsiveness (AHR) is defined as the predisposition of the airways of patients to narrow excessively in response to stimuli that would produce little or no effect in healthy subjects (Figure 1).

Do asthmatics exhibit hyperactive bronchi?

Does lung inflammation go away?

Generally, with a mild self-limited infection, lung inflammation should clear up as the infection resolves. Severe lung infections may cause acute respiratory distress syndrome (ARDS), a life-threatening condition in which lung function suddenly declines.

What does it look like when you have bronchitis?

Bronchitis is an inflammation of the lining of your bronchial tubes, which carry air to and from your lungs. People who have bronchitis often cough up thickened mucus, which can be discolored. Bronchitis may be either acute or chronic.

What are the symptoms of an infected bronchial tube?

Your bronchial tubes, which carry air to your lungs, can get infected and swollen. When that happens, it’s called bronchitis. Symptoms of this condition include a nagging cough, and you might hack up mucus that’s yellow or green.

Is there such a thing as bronchial hyperresponsiveness?

Here there is no bronchial hyperresponsiveness but evidence, usually obtained at induced sputum, of eosinophilic inflammation within the airways. Is this a form of asthma? Some would suggest that this is a separate condition.

How does bronchitis affect the lining of the lungs?

Bronchitis is an inflammation of the lining of your bronchial tubes, which carry air to and from your lungs. People who have bronchitis often cough up thickened mucus, which can be discolored. Bronchitis may be either acute or chronic. Often developing from a cold or other respiratory infection, acute bronchitis is very common.