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上部 / 英文内容可以手触上下移动 Sinusitis is the inflammation of the mucosal lining of the paranasal sinuses leading to infection and pus formation. Sinus infections may involve all or only a few of the sinus cavities, including the frontal sinuses located above the eyes, maxillary sinuses located in the cheeks, ethmoid sinuses located between the eyes, and sphenoid sinuses located behind the eyes.
Normally, the sinuses are air-filled spaces with openings that allow ventilation of not only air but also mucus to freely flow into the nasal cavity. With infection, the mucosal line starts to swell and eventually close off the sinus opening. With closure, mucus is no longer able to escape leading to pus accumulation.
At this point, symptoms of pain, pressure and congestion may be experienced by the patient. With medication, the infection may resolve along with resolution of mucosal swelling.
However, should mucosal swelling persist even though the infection has resolved. This may lead to another infection with pus formation. This cycle may repeat over and over again. . 下部 / 英文内容可以手触上下移动 Surgical intervention is when the sinus openings are physically opened up allowing for pus removal as well as restoring normal ventilation. Surgery may involve a balloon which is inserted over a light guide wire and inflated to enlarge the sinus opening. Here we see this balloon sinuplasty being performed on the frontal as well as the maxillary sinus cavities. Traditional sinus surgery involves physically removing bone and mucosa around sinus openings using instruments. The openings are made much larger than normal to minimize the chance they will clog closed in the future.
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