This video demonstrate basics of Upper and Lower GI Endoscopy. Several types of endoscopes have been developed to examine different parts of the body. Different procedures which use endoscopes that are inserted through a natural opening in the body include: Gastroscopy or upper endoscopy: a gastroscope is inserted into the mouth and used to examine the upper parts of the digestive tract e.g. the oesophagus (food pipe), stomach and first part of the small intestine. Colonoscopy: endoscope is inserted into the anus and used to examine lower parts of the digestive tract e.g. the rectum and colon. Sometimes, a shorter tube is used to examine just the lower part of the colon (the sigmoid colon). This procedure is called a sigmoidoscopy. Complications from an endoscopy are very uncommon. Some people may feel soreness or tenderness after the procedure, but this usually settles quickly. Complications may include: Piercing a hole or tearing in the area being examined. Excessive bleeding. Infection. People who have been sedated may occasionally have some side effects, for example they may feel sick or vomit, feel a burning sensation at the site of the injection, have trouble breathing, or develop low blood pressure or an irregular heartbeat.

Endoscopy is a minimally invasive diagnostic and therapeutic procedure that allows doctors to visualize the internal organs of the digestive tract. It is a cornerstone in modern gastroenterology, enabling early diagnosis and treatment of a wide range of gastrointestinal disorders. The two most commonly performed endoscopic procedures are Upper GI Endoscopy and Colonoscopy.

What is Endoscopy?

Endoscopy involves the use of a flexible tube called an endoscope, equipped with a light and camera, which is inserted into the digestive tract. This allows physicians to examine the lining of the esophagus, stomach, small intestine, and colon in real-time. Endoscopy can also be used to perform biopsies, remove polyps, or treat certain conditions without the need for major surgery.

Upper GI Endoscopy (Esophagogastroduodenoscopy)

Purpose:

Upper GI Endoscopy, also known as EGD, is used to examine the esophagus, stomach, and the first part of the small intestine (duodenum).

Indications:

• Persistent heartburn or acid reflux

• Difficulty swallowing (dysphagia)

• Upper abdominal pain

• Nausea, vomiting, or unexplained weight loss

• Suspected ulcers, gastritis, or tumors

Procedure:

The patient is usually sedated to minimize discomfort. The endoscope is gently inserted through the mouth and guided down the esophagus into the stomach and duodenum. The camera transmits images to a monitor, allowing the doctor to examine the lining of these organs. Biopsies or minor treatments can be performed during the procedure.

Benefits:

• Early detection of cancers or pre-cancerous conditions

• Minimally invasive, usually outpatient

• Quick recovery with minimal discomfort

Colonoscopy

Purpose:

Colonoscopy is used to examine the entire colon (large intestine) and rectum. It is the gold standard for detecting colorectal cancer and other colon-related diseases.

Indications:

• Screening for colorectal cancer

• Chronic diarrhea or constipation

• Blood in stool or unexplained anemia

• Polyps or colon tumors

• Inflammatory bowel diseases like Crohn’s disease or ulcerative colitis

Procedure:

Before the procedure, patients undergo bowel preparation to clear the colon. Sedation is given for comfort. The colonoscope, a flexible tube with a camera, is inserted through the rectum to visualize the colon. Polyps can be removed, and biopsies can be taken if necessary.

Benefits:

• Prevents colorectal cancer by removing polyps early

• Detects inflammation, ulcers, and other colon abnormalities

• Minimally invasive with low complication risk

Safety and Risks

Both Upper GI Endoscopy and Colonoscopy are generally safe procedures. Mild side effects may include temporary sore throat, bloating, or cramping. Serious complications are rare but can include bleeding or perforation, particularly if a polyp is removed.

Conclusion

Endoscopy, including Upper GI Endoscopy and Colonoscopy, is a critical tool in the diagnosis and management of gastrointestinal disorders. These procedures are minimally invasive, highly effective, and can often detect conditions at an early stage, improving patient outcomes. If you experience persistent digestive issues or are due for routine screening, consulting a gastroenterologist about endoscopy can be life-saving.