0 a medical examination of the inside of the stomach and part of the small intestine (= the upper part of the bowels between the stomach and the large intestine) using a gastroscope (= a long, thin medical device with a light and camera):
70 pernicious anaemia patients below the age of 76 years were screened by gastroscopy.
The patient was diagnosed with acid reflux by a gastroscopy.
To investigate the cause of the pain a gastroscopy was performed.
The sedative is used mainly before and during gastroscopy, endoscopy and other investigations.
