Gastroscopy, also called upper endoscopy, is an examination of the upper digestive tract (the oesophagus, stomach and duodenum) using a long, thin, flexible tube containing a camera and a light (gastroscope). The gastroscope is inserted through the throat, and guided down your oesophagus and into your stomach. This allows for viewing of the lining of these organs. If abnormalities are detected, a tissue sample (biopsy) can be removed and sent to a laboratory for closer examination.
A colonoscopy is performed to detect abnormalities in the large intestine (colon) and rectum. A long, flexible tube with a tiny video camera at the tip (colonoscope) is inserted through the rectum to allow the doctor to examine the entire colon. During a colonoscopy, tissue samples can be taken for analysis (biopsy), or abnormal tissue can be removed, if necessary.
Capsule endoscopy is performed to visually examine the midsection of the gastrointestinal tract, which includes portions of the small intestine. A small capsule containing a tiny wireless camera (about the size of a large vitamin pill), is swallowed, and images are captured as it passes through the small intestine. These images are recorded on a device worn as a belt, and your doctor will be able to view these images to examine for any abnormalities.
Therapeutic paracentesis, or large volume paracentesis, refers to the removal of as much ascites fluid (abnormal build-up of fluid) as possible to relieve symptoms of a tense abdomen and dyspnea (difficulty in breathing) in patients who have cirrhosis of the liver, cancer within the abdomen and congestive heart failure.