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Dr. Andrew Rynne
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Article Home Ear Nose and Throat Disorders Functional endoscopic sinus surgery

Functional endoscopic sinus surgery

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FESS helps in diagnosis and treatment of diseases of the nose and sinuses using endoscopes and CT scans. Most FESS operations are done under general anesthesia.


FESS is the most common surgery done for chronic sinus inflammation. It is performed under the magnification of a small telescopic endoscope. In this operation the diseased tissue and bone is removed, the sinuses are opened and help to restore the nose and sinus to healthy condition. It is less invasive surgery than the other conventional methods. After surgery the chronic inflammation takes months to years to disappear.

They are highly effective in the treatment of complicated acute sinusitis and chronic sinusitis. FESS is also used to treat non cancerous tumors.

It is also used to close the rare defect in the passage between the nose and intracranial cavity which causes spinal fluid to leak (cebrospinal fluid rhinorrhea)

Indications for FESS surgery

  • Chronic sinusitis not responding to medical treatment.
  • Nasal polyps.
  • CSF leakage.
  • Foreign body removal.
  • Optic nerve decompression.
  • Excision of benign tumors.
  • To control nasal bleeding.
  • Optic nerve decompression.

  • As a diagnostic procedure to diagnose the polyps.

Complications of the FESS surgery.

  • Bleeding.
  • Scarring and synechiae.
  • Injury to the nearby structures.
  • Injury to the nasolacrimal duct