How does colonoscopy work?

The article was consulted professionally by Master, Dr. Le Phuc Lien – Doctor of Urology – General Surgery Department – Share99 Central Park International Health Hub. The doctor has more than 12 years of experience in the field of intensive urology and urology.

Colonoscopy is also considered an effective method for colon cancer screening, early detection and removal of prec cancer lesions (polyps) and small tumors in the intestinal tract before symptoms appear.

1. What is colonoscopy?

Colonoscopy is a soft endoscopic diagnostic technique that allows the doctor to easily observe the inside of the patient's colon. Thanks to this diagnostic technique helps detect intestinal abnormalities such as tumors, ulcers, polyps and areas that are inflamed or bleeding.

2. When to get screening for colon cancer?

Doctors recommend that people who are 50 years of age or older and have an average risk of colon cancer should have colonoscopy every 10 years or earlier for colon cancer screening.

Colonoscopy can find the main causes of abdominal pain, rectal bleeding, constipation and prolonged diarrhea, or other intestinal problems.

In the event that the patient has had polyps before, the doctor may request to perform a follow-up endoscopy to quickly search for and remove any new polyps that appear. This reduces the risk of colon cancer.

2.1 Cases of colonoscopy

Colonoscopy will be in place for the following cases:

  • Abdominal pain
  • There is blood in the stool, or the stool is black like coffee grounds
  • Change your habit of foreing
  • Sharp anemia
  • Detection of colonoscopy abnormalities, such as polyps
  • People with a previous history of polyps or colon cancer
  • Suffers from inflammatory boweldisease , ulcerative colitis of the,..

How does colonoscopy work?

Suffers from inflammatory boweldisease , ulcerative colitis of the,..
  • Over 40 years old with colonoscopy needs, or family with a history of colon cancer

2.2 Preparation before colonoscopy

Before performing a colonoscopy, you should note the following:

  • Tell your doctor about the medications you are taking at least 1 week before the endoscopy, such as anti-freezing drugs or aspirin. Ask your doctor what medications are used or discontinued on the day of colonoscopy. You should also inform your doctor if you are allergic to any medications, including anesthesithesies.
  • Inform your doctor that you are pregnant or suspected of getting pregnant.
  • Your colon should be empty during an endoscopy. You will need to avoid eating solid food and drink liquids only for 1 day before the procedure. You will also need to take laxatives in the form of tablets or powders, or enema on the day or night before the endoscopy to empty the colon.
  • Arrange for a friend or family member to take you home, since after performing the procedure you may be a little stunned by the use of sedatives.
  • You will be required to sign a commitment that says you understand the risks and benefits of an endoscopy and agree to take a test.
  • Ask your doctor about any questions you may have regarding colonoscopy as well as the necessity, risks and implications of the procedure.

3. The process of colonoscopy

3.1 Implementation

Usually, the process of performing a colonoscopy will take about 30-60 minutes to complete. When you go to the endoscopy, you will have to take off your outfit and change the hospital gown. After that, you will lie on your side on the inspection table in a separate room. The lying position is usually tilted to the left and the legs fold up close to the abdomen. The nurse will give you painkillers and sedatives through intravenous injections to limit your discomfort. You can stay awake, but not be aware or remember what happened during the procedure.

Next, your doctor will insert an endoscope and blow air into your colon. The colon will swell, making it possible for the doctor to better see the lining of the colon and rectum through a screen connected to the camera attached to the end of the endoscope. If there is abnormal growth, or polyps appear in your colon, the doctor will use a tool at the end of the endoscope to remove it or perform a biopsy. This procedure usually does not cause pain, but bleeding can occur at the site where the tissue is removed. Rarely, endoscopy can puncture the wall of the colon. If this happens, surgery will be required to repair the hole.

colonoscopy

Colonoscopy

Throughout the process, you may feel discomfort when lying still for a long time or suffering from cramps. Take a slow, deep breath to alleviate this pain.

3.2 After colonoscopy

It is recommended to stay in the check-in room for up to 2 hours to wait for the effects of sedatives or anesthesies to disappear. You should not drive afterwards, but should ask your family to bring it back.

After performing colonoscopy, you can completely perform your daily activities (such as eating).

The result will be paid after 5-7 days. Contact your doctor immediately if the following complications occur:

  • Severe abdominal pain
  • Fever, vomiting
  • Bowel movements
  • Dizziness
  • Weak body
  • High blood-inging

Other complications of colonoscopy include:

  • Endoscopic tubes cause tearing or perforation of the colon wall
  • Removing polyps or taking a biopsy sample can cause bleeding, however the level of bleeding is not much and can be controlled.
  • There are some reactions to anesthesies

However, these complications are rare, with only about 1 in 1,000 patients experiencing it.

Colonoscopy is rated as safe, non-hazardous and very rare complications occur if you perform in a reputable medical facility, skilled doctors and modern medical equipment.

Share99 International Health Hub with a system of modern facilities, medical equipment and a team of experts and doctors with many years of experience in medical examination and treatment, patients can be assured of examination and treatment at the Health Hub.

Gastrointestinal cancer screening is a scientific and effective way to detect early gastrointestinal cancer(esophaguscancer, stomach cancer, colon cancer) and offer the best treatment regimen. Currently, Share99 International Health Hub has a screening package and early detection of gastrointestinal cancer (esophagus – stomach – colon) combining clinical and subclinical examination to bring the most accurate results possible.

When screening for gastrointestinal cancer at Share99, you will be:

  • Endoscopic examination with an oncologist (appointment).
  • Gastroscopy and colonoscopy with anesthesia NBI endoscopy machine.
  • Test for total peripheral blood cell analysis (by laser counter).
  • Prothrombin time test by automatic machine.
  • Automatic machine thrombin time test.
  • Partial thromboplastin time test (APTT: Activated Partial Thromboplastin Time) by automatic machine.
  • General abdominal ultrasound

For direct advice, please click hotline number or register online HERE. In addition, you can register for remote consultation HERE

SEE MORE:

  • Procedures and notes when colonoscopy
  • Q&A: What diseases do colonoscopy images detect?
  • Q&A: How does the colonoscopy technique work?

About: John Smith

b1ffdb54307529964874ff53a5c5de33?s=90&r=gI am the author of Share99.net. I had been working in Vinmec International General Hospital for over 10 years. I dedicate my passion on every post in this site.

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