Endoscopic Ultrasound (EUS) is a minimally invasive procedure used to assess disorders of the digestive (gastrointestinal) tract and other nearby organs and tissues. The procedure combines the use of a thin, flexible tube (endoscope) inserted into the gastrointestinal tract and a device that uses sound waves to create images (Ultrasound).
The surrounding organs and tissues, including the lungs, pancreas, gallbladder, liver, and lymph nodes, are also clearly visible in the high-resolution images created by high-frequency sound waves.
Possible Risks of Endoscopic Ultrasound
An endoscopy is considered to be a fairly safe procedure. Physicians often ensure that the advantages of undergoing an endoscopy exceed any potential complications.
Possible risks include:
The Need for Endoscopic Ultrasound
Endoscopic ultrasound and endoscopic-guided procedures can be used for the following:
Preparation for an Endoscopic Ultrasound
The patient might have a blood test two days beforehand to check how well his/her blood clots. The doctor should be informed if the patient is taking any medication that affects how blood clots.
One should not eat for 6 to 8 hours before the test. However, he/she might be able to drink sips of water up to 2 hours before the appointment.
After the Procedure
After the procedure, the patient will stay in the endoscopy unit for a couple of hours to recover. One might not be able to eat or drink for about an hour until the local anesthetic throat spray wears off.
The patient can go home the same day, though one can’t drive for 24 hours after having been sedated.