Jeffrey Schratz, M. D., FACS Robert Hodge, M. D., FACS
GENERAL, VASCULAR AND LAPAROSCOPIC SURGERY
160 East Avenue, Lockport, New York 14094
Phone: (716) 434-6141
Fax: (716) 434-0594
What is a colonoscopy?
Colonoscopy enables the doctor to examine the lining of your colon (large intestine) for abnormalities by
inserting a flexible tube as thick as your finger into your anus and slowly advancing it into your rectum and
colon. After your medical history is reviewed, an intravenous (IV) line will be inserted. You will receive a
sedative that will allow you to be unaware of the events during the test. The procedure itself usually takes 20 to
30 minutes, although you should plan on two to three hours for waiting, preparation, and recovery.
Why is a colonoscopy done?
There are many indications for a colonoscopy. It is currently the standard of care for colorectal cancer
screening. It can also be helpful in the evaluation of gastrointestinal bleeding, anemia, diarrhea, constipation,
diverticular disease and abdominal pain.
What if a polyp is found?
Polyps are abnormal growths in the colon lining that are usually benign (noncancerous). They vary in size from a
tiny dot to several inches and are fairly common. The doctor cannot always tell a benign polyp from a malignant
(cancerous) polyp by its outer appearance, so he might send removed polyps for analysis. Removal of
adenomatous polyps dramatically reduces the risk of developing cancer.
Are there risks associated with a colonoscopy?
Bleeding and creating a hole in the colon wall (perforation) are the main potential complications associated with
colonoscopy. Bleeding occurs in fewer than 3% of patients who undergo colonoscopy. When bleeding occurs, it
usually stops spontaneously. Occasionally, it is necessary to repeat the procedure to stop the bleeding by
cauterizing the bleeding site or injecting it with a substance to stop the hemorrhage. Perforation is a serious
complication. Urgent surgery is almost always required to repair the colon. Fortunately, perforation occurs in
less than 1 in 1000 patients (0.1%) who undergo colonoscopy.
What training and experience does my doctor have in colonoscopies?
In addition to training in General and Vascular Surgery, both of our physicians have completed five or more
years of subspecialty training in the evaluation and management of gastrointestinal disorders and
gastrointestinal endoscopy. Each of our physicians performs more than 500 colonoscopies every year.
What do I have to do to prepare for the colonoscopy?
It is essential that the colon be completely cleared of fecal material to perform the procedure. You will receive
detailed instructions concerning the preparation. Please follow those instructions to the letter.
Can I continue my current medications while preparing for a colonoscopy?
Most medications can be continued as usual, but some medications can interfere with the preparation of the
examination. Inform the doctor about medications you’re taking, particularly aspirin products, arthritis
medications, anticoagulants (blood thinners), insulin or iron products. Also, be sure to mention allergies you
have to medications.
I have read and understand the above
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