Endoscopic Sinus Surgery opens swollen or blocked sinus passages. Sinus cavities are hollow, air filled chambers in the bones around the nose. There are four pairs of sinuses. The frontal are located in the forehead above the eyebrows. The ethmoid sinus are between the eyes. The sphenoid sinus are deep inside the head, behind the nose. The maxillary sinus are below the eyes, near the cheek bones. Mucus is produced in these sinus openings. Certain disorders such as infection, unusually narrowed openings or allergens can cause this path of drainage to be blocked. This blockage causes symptoms such as congestion, drainage, decreased sense of smell or taste, impaired breathing, ear fullness, facial pain and headaches. Irritation can also be caused by nasal polyps which are tiny sacs of swollen tissue that grow and block the drainage path.
A CT Scan is usually taken prior to surgery to obtain an overview of the sinuses. Surgery is done under general anesthesia. Using advanced technology and cameras, the sinuses are entered through the nose and closely examined using lights and magnification. Using special micro-instruments, narrow openings to the sinuses are enlarged and widened. Infected nasal lining can be removed. Polyps and bony partitions can be removed to form a passage for mucus to drain. Sometimes Endoscopic Sinus Surgery is combined with Septoplasty or Turbinoplasty.