What Is an Endoscopy? Procedure, Sedation, Risks and Recovery

What is an endoscopy?

An endoscopy is a procedure that lets a doctor look directly inside your digestive tract using an endoscope, a thin flexible tube with a camera and light at its tip. It shows the lining of the food pipe, stomach or bowel live on a monitor, so the cause of pain, bleeding or reflux can be seen rather than guessed. At KDRC on Shantipath, Amarsingh Chowk, Pokhara-10, endoscopy is performed with high-definition (HD) equipment.

Because the image is live, the doctor can steer through the digestive tract, look closely at suspicious areas and even treat some problems, such as bleeding points or small growths, during the same session. MedlinePlus explains that an upper endoscopy can check for ulcers, inflammation, narrowing and bleeding, and that tissue samples can be taken at the same time.

HD imaging matters when the question is subtle. It reveals small ulcers, early inflammation and fine surface patterns that standard-definition scopes can miss, which is most important when the goal is to catch problems early. Timings and preparation are on our Endoscopy in Pokhara page.

When do you need an endoscopy?

An endoscopy is worth discussing with your doctor when digestive symptoms keep returning or do not settle with medicine. These signs deserve a direct look rather than continued guessing.

• Persistent heartburn or indigestion. Acid reflux or upper abdominal burning that does not improve with tablets is a common reason for gastroscopy.
• Difficulty swallowing. Food sticking in the chest or throat needs the food pipe to be examined.
• Signs of bleeding. Vomiting blood or passing black, tarry stools can signal bleeding from the stomach or duodenum.
• Change in bowel habit. Long-standing diarrhoea or constipation, or blood or mucus in the stool, usually points toward colonoscopy.
• Weight loss or anaemia. Unexplained weight loss or iron-deficiency anaemia on a blood test needs a cause to be found.
• Ulcers and H. pylori. Endoscopy can test for Helicobacter pylori, the stomach infection linked to ulcers, and check whether a known ulcer is healing.

A family history of bowel cancer, or long-standing bowel complaints in someone over middle age, also pushes strongly toward colonoscopy. If any of this sounds like you, call 061-553538 rather than waiting for symptoms to worsen.

Vomiting blood, vomit that looks like coffee grounds, black tarry stools, heavy bleeding from the back passage, or severe abdominal pain with dizziness or fainting can mean serious bleeding. Seek emergency care straight away rather than waiting for a routine endoscopy appointment.

How to prepare for an endoscopy

Good preparation gives the doctor a clear view and keeps the procedure safe. The rules differ for the upper and lower tests.

Fasting for gastroscopy

Do not eat anything for at least six hours before a gastroscopy, and stop drinking fluids about two hours before. Food left in the stomach hides the view and increases the risk of vomiting during the test. Planning your last meal for the evening before a morning appointment makes this easy. Our gastroscopy preparation checklist walks through each step.

Bowel cleansing for colonoscopy

For colonoscopy you will be given a bowel-cleansing medicine to drink the day before, along with dietary instructions, so the bowel wall is fully visible. The NHS colonoscopy guide explains that the bowel must be empty for the doctor to see it clearly. Follow the instructions exactly, because an incompletely prepared bowel is the most common reason a colonoscopy has to be repeated.

Medicines and cost

Tell the team in advance about your regular medicines and allergies. Some need special advice before the procedure.

The cost depends on the type of procedure, whether sedation is used and whether a biopsy or laboratory test is needed. Call 061-553538 or 9856077433 for KDRC's current charges for your case.

Gastroscopy vs colonoscopy: which endoscopy do you need?

The two most common digestive endoscopies examine opposite ends of the digestive tract, so they are not interchangeable. Gastroscopy, also called upper GI endoscopy, passes the scope through the mouth to inspect the oesophagus, stomach and duodenum. It is the standard test for heartburn, ulcer-type pain, swallowing problems and upper digestive bleeding.

Colonoscopy passes the scope through the back passage to examine the large bowel. It is used for a changed bowel habit, rectal bleeding, unexplained anaemia and bowel cancer checks. KDRC performs both with HD equipment. Our article on endoscopy vs colonoscopy explains the difference in more detail.

What to expect on the day at KDRC

You will be in the department for two to three hours in total, but the gastroscopy itself usually takes five to ten minutes and a colonoscopy around twenty to thirty minutes. Most of the visit is preparation beforehand and recovery afterwards.

Most patients find endoscopy uncomfortable rather than painful. For gastroscopy you can choose a numbing throat spray, a light sedative injection that makes you drowsy and relaxed, or both. With spray alone you stay awake, and some people feel pressure or mild gagging at the start that settles as the examination goes on. Colonoscopy is normally done with sedation, and most sedated patients remember little of the procedure. Discuss which option suits you when you book.

If the doctor sees an area that looks inflamed, ulcerated or suspicious, tiny tissue samples, typically one to three millimetres across, can be taken through the scope. You will not feel this. The samples go to a laboratory, which is how ulcers, infections and cancers are confirmed. Doing the biopsy during the endoscopy avoids a second procedure; learn more on our biopsy and in our guide to the biopsy results.

Is endoscopy safe? Recovery and results

Endoscopy is a routine, very safe test and serious complications are rare. A sore throat, bloating or mild cramping usually settles within a day. Rare risks include bleeding, especially after a biopsy, and a small tear in the gut wall, which is why the procedure is done by trained staff. The NHS gastroscopy guide describes the same low risk profile.

After the procedure you rest for thirty minutes to an hour while sedation wears off. If you had throat spray, wait until feeling returns before eating or drinking. If you had sedation, a responsible adult must take you home, and you should not drive, sign documents or operate machinery for twenty-four hours. Most people return to work the next day. Mild bloating after colonoscopy is normal, caused by the air used to open the bowel.

Preliminary findings are often explained before you leave. Biopsy results usually take several days and are discussed at follow-up. Call 061-553538 promptly if you develop severe or worsening abdominal pain, fever, repeated vomiting or significant bleeding.

Common mistakes and myths about endoscopy

• Myth: endoscopy is very painful. Most people describe it as uncomfortable, and throat spray or sedation makes it easier.
• Mistake: eating a late breakfast before gastroscopy. Food in the stomach blocks the view and can mean the test is rebooked.
• Mistake: skipping part of the bowel preparation. A poorly cleaned bowel is the most common reason a colonoscopy is repeated.
• Myth: a biopsy means the doctor suspects cancer. Biopsies are routine and often check for inflammation or H. pylori.
• Mistake: driving home after sedation. Sedation affects judgement for the rest of the day, so arrange an escort.
• Myth: gastroscopy also checks the bowel. Each test examines a different part of the gut.

KDRC combines HD scopes, experienced gastroenterology staff, sedation options and on-site biopsy support, with Doppler ultrasound and CT angiography available under the same roof. To book, visit our HD endoscopy at KDRC or contact KDRC on 061-553538.