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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 ...
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]
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]
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. Asthma is caused by multiple genes , some having protective effect, with each gene having its own tendency to be influenced by the environment although a ...
Asthma-COPD overlap. Asthma-Chronic Obstructive Pulmonary Disease (COPD) Overlap (ACO), also known as Asthma-COPD Overlap Syndrome (ACOS) is a chronic inflammatory, obstructive airway disease in which features of both asthma and COPD predominate. Asthma and COPD were once thought of as distinct entities, however in some, there are clinical ...
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 ...
Respiratory failure results from inadequate gas exchange by the respiratory system, meaning that the arterial oxygen, carbon dioxide, or both cannot be kept at normal levels. A drop in the oxygen carried in the blood is known as hypoxemia; a rise in arterial carbon dioxide levels is called hypercapnia. Respiratory failure is classified as ...
Pneumomediastinum (from Greek pneuma – "air", also known as mediastinal emphysema) [1] is pneumatosis (abnormal presence of air or other gas) in the mediastinum, the central part of the chest cavity. First described in 1819 by René Laennec, [2] [3] the condition can result from physical trauma or other situations that lead to air escaping ...