Voice, Swallowing & Throat Disorders

About Nasolaryngoscopy

Nasolaryngoscopy is a comfortable and safe procedure where a thin, flexible endoscope is passed through the nose to allow your doctor to visualise your throat and voice box. 

When symptoms might indicate the need for nasolaryngoscopy?

  • Change or loss of voice
  • Pain or discomfort in the throat
  • Blood stained phlegm
  • Difficulty or pain swallowing
  • Chronic cough

Transnasal flexible endoscopy allows the most detailed digital video imaging of the throat and voice box. It is also the most comfortable method of assessing these parts of your upper airway. Our endoscopic systems also feature Narrow Band Imaging (NBI) technology that improves visualisation for cancer detection.

Procedure for Nasolaryngoscopy

Nasolaryngoscopy is a quick, safe and painless procedure. Transnasal flexible endoscopes are very relatively thin (usually 3 mm) and you should expect minimal discomfort from the procedure. Very fine paediatric scopes are available for examination of small children and most children are able to tolerate a diagnostic nasal endoscopy in the clinic.

Your nose is first prepared by application of a nasal spray that anaesthetises and decongests the lining of the nose i.e makes the lining numb and temporarily shrinks the nasal tissue to allow more space for the scope to pass easily. 

When you are comfortable, your doctor will gently then insert the endoscope through the nasal passages. At the back of the nose, the endoscope is turned downwards to get a top-down view of the throat and voice box.  

As part of the evaluation, your doctor will ask you to produce various sounds with your voice box to assess the movement of the vocal cords. 

For a detailed assessment of your vocal box function, your doctor may perform laryngeal videostroboscopy. A small microphone is attached close to your neck and a slow-motion view of your voice box is obtained as you produce various types of sounds. 

Each of our private examination rooms features a monitor that allows you to see, in real-time, the same images that we see. This allows us to better explain your condition as we view the images together. In some instances, we may also capture images and photographs from the procedure for further review. This allows us to provide you with periodic and optimal follow-up care.