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AERD affects an estimated 0.3–0.9% of the general population in the US, including around 7% of all asthmatics, about 14% of adults with severe asthma, and ~5-10% of patients with adult onset asthma. [2] [3] [8] AERD is uncommon among children, with around 6% of patients, predominantly female, reporting disease onset during childhood. [9]
Acute severe asthma. Silent chest, worsening symptoms despite use of medication. [1] Acute severe asthma, also known as status asthmaticus, is an acute exacerbation of asthma that does not respond to standard treatments of bronchodilators (inhalers) and corticosteroids. [2] Asthma is caused by multiple genes, some having protective effect, with ...
An overall prevalence of 2.5% has been reported in patients presenting with asthma. [19] Among adults with asthma considered "difficult to control", 10% were found to have VCD while 30% were found to have both VCD and asthma. [6] Among children with severe asthma, a VCD prevalence rate of 14% has been reported. [6]
Reactive airway disease. Reactive airway disease ( RAD) is an informal label that physicians apply to patients with symptoms similar to those of asthma. [ 1] An exact definition of the condition does not exist. [ 1][ 2] Individuals who are typically labeled as having RAD generally have a history of wheezing, coughing, dyspnea, and production of ...
Asthma is a long-term inflammatory disease of the airways of the lungs. [4] It is characterized by variable and recurring symptoms, reversible airflow obstruction, and easily triggered bronchospasms. [9] [10] Symptoms include episodes of wheezing, coughing, chest tightness, and shortness of breath. [3]
Brittle asthma is a type of asthma distinguishable from other forms by recurrent, severe attacks. [1] [2] [3] There are two subtypes divided by symptoms: Type 1 and Type 2, [4] depending on the stability of the patient's maximum speed of expiration, or peak expiratory flow rate (PEFR). Type 1 is characterized by a maintained wide PEF ...
Moderate to high intensity exercise. Exercise-induced bronchoconstriction ( EIB) occurs when the airways narrow as a result of exercise. This condition has been referred to as exercise-induced asthma ( EIA ); however, this term is no longer preferred. [ 1] While exercise does not cause asthma, it is frequently an asthma trigger.
Postural orthostatic tachycardia syndrome (POTS) is a condition characterized by an abnormally large increase in heart rate upon sitting up or standing. [1] POTS is a disorder of the autonomic nervous system that can lead to a variety of symptoms, [10] including lightheadedness, brain fog, blurred vision, weakness, fatigue, headaches, heart palpitations, exercise intolerance, nausea ...