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Laryngitis is categorized as acute if it lasts less than 3 weeks and chronic if symptoms last more than 3 weeks. [1] Acute cases usually occur as part of a viral upper respiratory tract infection, [1] other infections, and trauma such as from coughing or other causes. [1]
[3] [4] This commonly includes nasal obstruction, sore throat, tonsillitis, pharyngitis, laryngitis, sinusitis, otitis media, and the common cold. [5]: 28 Most infections are viral in nature, and in other instances, the cause is bacterial. [6] URTIs can also be fungal or helminthic in origin, but these are less common. [7]: 443–445
Laryngotracheal stenosis is an umbrella term for a wide and heterogeneous group of very rare conditions. The population incidence of adult post-intubation laryngotracheal stenosis which is the commonest benign sub-type of this condition is approximately 1 in 200,000 adults per year. [10] The main causes of adult laryngotracheal stenosis are:
Strep throat, a bacterial infection, is the cause in about 25% of children and 10% of adults. [2] Uncommon causes include other bacteria such as gonococcus, fungi, irritants such as smoke, allergies, and gastroesophageal reflux disease. [2] [4] Specific testing is not recommended in people who have clear symptoms of a viral infection, such as a ...
It is the cause of 15–40% of sore throats among children [7] [13] and 5–15% among adults. [8] Cases are more common in late winter and early spring. [13] Potential complications include rheumatic fever and peritonsillar abscess. [1] [2]
Laryngopharyngeal reflux (LPR) or laryngopharyngeal reflux disease (LPRD) is the retrograde flow of gastric contents into the larynx, oropharynx and/or the nasopharynx. [4] [5] LPR causes respiratory symptoms such as cough and wheezing [6] and is often associated with head and neck complaints such as dysphonia, globus pharyngis, and dysphagia. [7]
Laryngitis can be a short term illness or a prolonged problem. The majority of cases of laryngitis are due to viral infections that only last a few days. Laryngitis is often a common complaint in individuals who sing. Opera singers or those who yell at sporting events strain the throat muscles and develop a case of laryngitis.
The above statistical analysis is dated, necessarily. A 2015 study of young adult students presenting to a single clinic in Alabama had F. necrophorum as the predominant causative organism for pharyngitis 21% of the time (and found in 9% of asymptomatic students). [11]