Although not the only cause of chest pain, these heart problems are common causes: Coronary Artery Disease, or CAD. A blockage in the heart blood vessels that reduces blood flow and oxygen to the heart muscle itself. This can cause pain known as angina. It's a symptom of heart disease but typically does not cause permanent damage to the heart. It is, though, a sign that you are a candidate for a heart attack at some point in the future. The chest pain may spread to your arm, shoulder, jaw, or back.
Esophagogastroduodenoscopy, also called by various other names, is a diagnostic endoscopic procedure that visualizes the upper part of the gastrointestinal tract up to the duodenum.
It is also often called just upper endoscopy, upper GI, or even just endoscopy; because EGD is the most commonly performed type of endoscopy, the ambiguous term endoscopy is sometimes informally used to refer to EGD by default.