The paranasal sinuses are air cavities located inside the bones of the skull.\u00a0A person has 4 pairs of sinuses: <\/p>
Each sinus connects to the nasal cavity so that the secretions they produce can evacuate, and air from outside gets in and ventilates the inside of the sinuses.\u00a0This ensures the absence of bacteria inside the paranasal sinuses in a physiological state.<\/p>
In sinus infections, inflammation and swelling\u00a0affect the lining of the sinuses.\u00a0This causes<\/a> blockage of the mouth-ductal complex (i.e., the opening of the sinuses to the nasal cavity) and the inability to evacuate the secretions from the sinuses, which favors their accumulation.\u00a0Recently, the term “rhinosinusitis” has been used more often\u00a0because\u00a0the infection of the mucosa in one place spreads quickly to cover the entire nasal cavity.<\/p> Due to its duration, we can distinguish acute, subacute or chronic sinusitis. Acute sinusitis has a rapid onset and lasts no more than 4 weeks. In the case of the subacute condition, the disease<\/a> period lasts from 4 to 8 weeks, and if it exceeds 8 weeks or frequently recurs, it is called chronic paranasal sinusitis.<\/p> The cause of any type of sinusitis, like most upper respiratory tract infections, can be viral, bacterial, fungal, or allergic.\u00a0The most common causes<\/a> of acute sinusitis are viruses, such as rhinoviruses, coronaviruses,\u00a0adenoviruses<\/a>\u00a0and\u00a0the influenza<\/a>\u00a0virus .\u00a0Bacterial colonization (the three most common being\u00a0Streptococcus pneumoniae\u00a0,\u00a0Haemofilus influenzae,\u00a0and\u00a0\u00a0Moraxella catarrhalis<\/em>\u00a0) usually occurs as a result of superinfection during a viral infection or an allergic reaction.\u00a0Fungal sinusitis can occur in people with impaired immunity (after transplantation, with bone marrow diseases, AIDS) or with diabetes.<\/p> Currently, the cause is more and more often unrecognized or poorly controlled allergy. Occasionally, sinusitis can be caused by chronic irritation of the mucosa by physical agents (e.g., cigarette smoke) or an infection of a root-derived tooth. Also, a significant deviation of the nasal septum may contribute to frequent inflammations of the paranasal sinuses, especially unilateral sinuses.<\/p> In this article, Niketrainers.com.co will tell you:<\/p>\n