Colonoscopy

Colonoscopy

Colonoscopy is the visual examination of the large intestine (colon) using a lighted, flexible fiberoptic or video endoscope. The colon begins in the right-lower abdomen and looks like a big question mark as it moves up and around the abdomen, ending in the rectum. It is 5 to 6 feet long. The colon has a number of functions including withdrawing water from the liquid stool that enters it so that a formed stool is produced.

Equipment:

The flexible colonscope is a remarkable piece of equipment that can be directed and moved around the many bends in the colon.  These colonscopes now come in two ways. The original purely fiberoptic instrument has a flexible bundle of glass fibers that collects the light image at one end and transfers the image to the eye piece. The newer video endoscopes use a tiny, optically sensitive computer chip at the end. Electronic signals are then transmitted up the scope to a computer which displays the image on a large video screen. An open channel in these scopes allows other instruments to be passed through in order to perform biopsies, remove polys or inject solutions.

Reasons for the Exam:

There are many types of problems that can occur in the colon. The medical history, physical exam, laboratory tests and x-rays can provide information useful in making a diagnosis. Directly viewing the inside of the colon by colonoscopy is usually the best exam. Colonoscopy is used for:

*Colon cancer-a serious but highly curable malignancy.

*Polyps-fleshy tumors which usually are the forerunner of colon cancer.

*Colitis (Ulcerative or Crohn’s)-chronic, recurrent inflammation of the colon.

*Diverticulosis and Diverticulitis-pockets along the intestinal wall that develop over time and can become infected.

*Bleeding lesions-bleeding may occur from different points in the colon.

*Abdominal symptoms, such as pain or discomfort, particularly if associated with weight loss or anemia.

*Abnormal barium x-ray exam.

*Chronic diarrhea, constipation or a change in bowel habits.

*Anemia

Preparation:

To obtain the full benefits of the exam, the colon must be clean and free of stool. The patient receiver instructions on how to do this. It involves drinking a solution which flushes the colon clean or taking laxatives and enemas. Usually the patient drinks only clear liquids and eats no food for the day before the exam. The physician advises the patient regarding the use of regular medications during that time.

The Procedure:

Colonoscopy is usually performed on an outpatient basis. The patient is mildly sedated, the endoscope is inserted through the anus and moved gently around the bends of the colon. If a polyp is encountered, a thin wire snare is used to lasso it. Electroncautery  (electrical heat) is applied to painlessly remove it. Other tests can be performed during colonoscopy, including biopsy to obtain a small tissue specimen for microscopic analysis.

The procedure takes 15 to 30 minutes and is seldom remembered by the sedated patient. A recovery area is available to monitor vital signs until the patient is fully awake. It is normal to experience mild cramping or abdominal pressure following the exam. This usually subsides in an hour or so.

Results:

After the exam, the physician explains the findings to the patient and family. If the effects of the sedatives are prolonged, the physician may suggest an appointment at a later date. If a biopsy has been performed or a polyp removed, the results of these are not available for three to seven days.

Benefits:

A colonoscopy is performed to identify and/or correct a problem in the colon. The test enables a diagnosis to be made and specific treatment can be given. If a polyp is found during the exam, it can be removed at that time, eliminating the need for a major operation later.

If a bleeding site is identified, treatment can be administered to stop the bleeding. Other treatments can be given through the endoscope when necessary.

Alternative Testing:

Alternative tests to colonoscopy include a barium enema or other types of x-ray exams that outline the colon and allow a diagnosis to be made. Study of the stools and blood can provide indirect information about a colon condition. These exams, however, do not allow direct viewing of the colon, removal of polyps or the completion of the biopsies.

Side Effects and Risks:

Bloating and distension typically occur for about an hour after the exam until the air is expelled. Serious risks with colonoscopy, however, are very uncommon. One such risk is excessive bleeding, especially with the removal of a large polyp. In rare instances, a teat in the lining of the colon can occur. These complications may require hospitalization and rarely surgery. Quite uncommonly a diagnostic error or oversight may occur.

Due to the mild sedation, the patient should not drive or operate machinery following the exam. For this reason, someone should be available to drive the patient home.

Summary:

Colonoscopy is an outpatient exam that is performed with the patient lightly sedated. the procedure provides significant information used to determine which specific treatment will be given. In certain cases, therapy can be administered directly through the endoscope. Serious complications rarely occur from colonoscopy. The physician can answer any questions the patient has.

Disclaimer: This information was provided by the Hackensack Gastroenterology Associates pamphlet for patients. It is important if you are over 50 years old to take this test if there is a history in your family. Please check with your doctor on this test. Please do not delay.

Advertisements

About jwatrel

I am a free-lance writer and Blogger. I am the author of the book "Firehouse 101" (IUniverse.com 2005) part of trilogy of books centered in New York City. My next book "Love Triangles" is finished being edited and should be ready for release in the Fall. My latest book, "Dinner at Midnight", a thriller is on its last chapter. My long awaited book explains the loss of the 2004 Yankee game to Boston. I work as a Consultant, Adjunct College Professor, Volunteer Fireman and Ambulance member and Blogger. I have a blog site for caregivers called 'bergencountycaregiver', a step by step survival guide to all you wonderful folks taking care of your loved ones, a walking project to walk every block, both sides, of the island of Manhattan "MywalkinManhattan" and discuss what I see and find on the streets of New York and three sites to accompany it. One is an arts site called "Visiting a Museum", where I showcase small museums, historical sites and parks that are off the beaten track both in Manhattan and outside the city to cross reference with "MywalkinManhattan" blog site. Another is "DiningonaShoeStringNYC", featuring small restaurants I have found on my travels in this project, that offer wonderful meals for $10.00 and under. So be on the lookout for updates on all three sites and enjoy 'MywalkinManhattan'. The third is my latest site, "LittleShoponMainStreet", which showcases all the unique and independent shops that I have found on my travels throughout and around Manhattan. I have started two new blog sites for the fire department, one "EngineOneHasbrouck HeightsFireDepartmentnj" for the Hasbrouck Heights Fire Department to discuss what our Engine Company is doing and the other is "BergenCountyFireman'sHomeAssociation" for the Bergen County Fireman's Association, which fire fighters from Bergen County, NJ, go to the Fireman's Home in Boonton, NJ to bring entertainment and cheer to our fellow brother fire fighters quarterly.
This entry was posted in Uncategorized. Bookmark the permalink.

One Response to Colonoscopy

  1. jwatrel says:

    Please, if you are over the age of 50, take this test. It is very important!

    Liked by 1 person

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s