Upper gastrointestinal endoscopy. When to perform, what to expect.

As endoscopy of the upper gastrointestinal tract becomes available to more and more physicians, questions may arise about its use. For example, what is the endoscopic approach to gastrointestinal bleeding? When is endoscopic follow-up useful? In this article, Dr Sivak describes the indications for upper gastrointestinal endoscopy, pointing out its advantages and limitations in each of six broad categories.