Thank you for visiting Gastro IQ.
We have recently merged with Eastern Gastroenterology where we continue to provide
high quality care to patients with a range of digestive health issues.
Please visit us at or call 03 9895 7628 for all appointments and endoscopy enquiries.


2023年4月20日起,Gastro IQ 将与Eastern Gastroenterology 合并。详见以下新地址及联络方式:
Epworth Eastern East Wing Tower, Level 9.4, 25 Nelson Road, 3128, Box Hill
电话: 03 9895 7628 传真:03 9454 9330 email:

Endoscopic Ultrasound (EUS)

What is an Endoscopic ultrasound?

An EUS is a medical procedure during which an endoscope (a long flexible tube with a tiny camera at the tip) is passed through the mouth and into the stomach. A miniature ultrasound probe in the scope allows your specialist to examine the deeper layers of the stomach wall as well as surrounding organs including the liver, pancreas and bile ducts. An EUS is usually performed in hospital while under sedation.

Why is an Endoscopic ultrasound performed?

An EUS is usually done to gather further information about the pancreas, liver and bile ducts that cannot be obtained by other methods (CT/MRI). Because the ultrasound probe is within the body it provides high quality pictures which can assist with diagnosing a variety of conditions. EUS is also used to obtain tissue samples, and can be used to drain fluid collections inside the body without the need for surgery.

How do I prepare for an EUS?

It is important for the safety and accuracy of the procedure that your stomach is completely empty. You should therefore have nothing to eat or drink for 6 hours prior to your EUS.

Whilst most medications can be taken as usual with a sip of water on the day of your procedure, some medications need to be stopped, or have their dose altered. 

You should notify your doctor at least 7 days prior to your procedure if you are taking:

  • Blood thinners (plavix, warfarin, pradaxa, eliquis, xarelto etc) or
  • Diabetes medications (metformin, insulin etc)

Please bring your referral, a full list of your medications and your medicare card/private health fund information on the day of your procedure.

What will happen on the day?

After registering at reception, you will be met by Dr. Paul Urquhart and an Anaesthetist who will discuss your medical history and the procedure. You will then be given a light anaesthetic (sedative). While this is not a full anaesthetic, most patients are very comfortable during the procedure and don’t experience any pain. Once sedated and lying in a comfortable position on your left side the endoscope is passed through your mouth and into your stomach. The procedure using lasts for between 15 and 20 mins.

What happens after my EUS?

Following the procedure you will be monitored in the recovery area until most of the sedative medication has worn off. You will then be offered something to eat and drink. Because of the sedative medication, it is essential that you have a friend or relative take you home and stay with you for several hours. It is strongly recommended that you do not drive, operate machinery or sign legal documents on the same day after the test.

Are there any risks or side effects?

Overall an EUS is a very safe procedure that most patients tolerate extremely well. The most common side effects include mild throat soreness, and abdominal discomfort related to retained air in the stomach. More serious but rare complications can occur and include bleeding, or a tear in the lining of the stomach (perforation). If this happens you may be admitted to hospital for an operation to repair it. If samples are taken during the procedure there is also a very small risk of infection and pancreatitis (inflammation of the pancreas).

Please contact Gastro IQ or your nearest emergency department if you experience any of the following symptoms after your EUS:

  • Increasing chest or abdominal pain
  • Fevers
  • Trouble swallowing
  • Other symptoms that cause you concern.

Dr. Paul Urquhart will discuss the EUS with you in detail on the day of your procedure, however if you have any questions or concerns prior to, or after, the procedure please don’t hesitate to contact us.