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Doctor insights on: Risk Of Perforation With Virtual Colonoscopy

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What is the risk of bowel perforation from CT colonography "virtual colonoscopy"??

What is the risk of bowel perforation from CT colonography "virtual colonoscopy"??

Not invasive.: A traditional colonoscopy is invasive; the fiber optic camera is passed through the colon, and therein causes the low risk of perforation of the colon. A CT colonography is not invasive; it's just a fancier CT scan, so there's nothing to directly cause a perforation. ...Read more

Dr. Charles Cattano
2,048 doctors shared insights

Colonoscopy (Definition)

Colonoscopy is the procedure of using a long flexible camera to visualize the entire colon from the inside with the option to take pictures, video, perform biopsies, remove polyps, etc. Generally people are sedated and do ...Read more


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Big risk of bowel perforation during a routine colonoscopy?

Big risk of bowel perforation during a routine colonoscopy?

Very small: The literature quotes rates of 1 in 3000. I have done over 10, 000 with no perforations. The risk increases with age and previous abdominal surgeries as well as nutritional status. ...Read more

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Any risk of bowel perforation during hysterectomy?

Yes: The bowel is adjacent to the uterus so it is at risk of injury during surgery to remove the uterus. This is especially of concern if there are adhesions or scar tissue due to endometriosis, previous surgery, or cancer. I recommend bowel preps before a davinci or laparoscopic hysterectomy to minimize risks of a bowel perforation and to facilitate repair if it should occur. ...Read more

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Is golytely (polyethylene glycol) fatal to pts with partial obstruction with colon perforation? (Stage 4 CRC with mets to lung)

Is golytely (polyethylene glycol) fatal to pts with partial obstruction with colon perforation?  (Stage 4 CRC with mets to lung)

No: Golytely (polyethylene glycol) is a bowel diuretic drawing fluid into the colon. If there is a patient with partial obstruction and with possible colonic performation, why would a bowel diuretic be employed that could cause a greater leak of GI fluid into the periotoneal cavaity, especially in the face of lung mets.? Laparoscopic evaluation of a possible leak may be necessary if not proven by radiologic evaluation ...Read more

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Complications of a collapsed colon with ovarian cancer?

Complications of a collapsed colon with ovarian cancer?

Call surgeon: If ovarian cancer has caused obstruction of the large intestine, common humanity would call for a surgeon to see if he/she can relieve the obstruction by whatever means even if the cancer is uncurable long-term. ...Read more

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Bowel issues 3 years, 4 Ct scans over that time with oral contrast, sigmoidoscopy to 35 cm, only diverticulosis seen, chances of missed cancer?

Bowel issues 3 years, 4 Ct scans over that time with oral contrast, sigmoidoscopy to 35 cm, only diverticulosis seen, chances of missed cancer?

Slim: in spite of the low chance of missing a cancer, a complete colonoscopy would examine the rest of the colon not visualized on sigmoidoscopy. CT is only fair to see colon cancers unless large because stool may get in the way. If you are still concerned then talking to your doctor may resolve these issues. ...Read more

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Can a colon infection raise your risk of colon cancer?

Can a colon infection raise your risk of colon cancer?

Possibly.: There is a high prevalence of colon cancer in patients with streptococcus bovis bacteremia. Whether or not it causes colon cancer does not seem to be known. But patients with >10 year history of crohn's or ulcerative colitis, familial polposis symdromes, and a diet high in animal fat do have inccreased risk for colon cancer. ...Read more

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What is the risk of uterine perforation with an IUD placement?

What is the risk of uterine perforation with an IUD placement?

Very low: This procedure very seldom causes any perforation of the uterine wall. ...Read more

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Can CT with rectal and IV contrast rule out small polyps or lessions in the colon?proctoscope and rectal exam are clean.no blood in stool.

Can CT with rectal and IV contrast rule out small polyps or lessions in the colon?proctoscope and rectal exam are clean.no blood in stool.

Small polyps: would be very difficult to diagnose on such an exam. A tailored "CT Colonography" would be better. Standard colonoscopy would be best. ...Read more

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What percentage of colonoscopy screenings end up damaging or perforating the colon? 1/1000? 1/2000?

What percentage of colonoscopy screenings end up damaging or perforating the colon? 1/1000? 1/2000?

Very low: For screening colonoscopies the rate of serious complications is generally less than 0.1%. The rate is higher if polyps are removed and the rate also goes up with age of the patient. The rate is lower for doctors who do a lot of them, ie, gastroenterologists. ...Read more

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If there is past family history of 2 deaths from bowel perforation (1 colonoscopy, 1 cdif) could there be increased risk for other family members?

If there is past  family history of 2 deaths from bowel perforation (1 colonoscopy, 1 cdif) could there be increased risk for  other family members?

Not clear: If i understand what you are asking, there is no risk to have bowel perforation because others had it. Specially from a colonoscopy. Cdiff is an infection and the only risk is to get the infection from the relative that had it. ...Read more

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Any complications with the gastroscopy?

Any complications with the gastroscopy?

Endoscopy: Complications rate is very low(less than 1%) but includes aspiration, perforation , bleeding, infection , missed findings , reaction to sedation including death. As stated, complications are rare. They should be discussed with you by the person performing the examination. Risks & benefits are discussed prior to the examination. This is referred to as "informed consent .". ...Read more

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Would bleeding associated with bowel cancer or small cancer get worse over time?

Would bleeding associated with bowel cancer or small cancer get worse over time?

Sometimes: Sometimes bowel cancers bleed, but not always, and they may or may not get worse. If you are concerned please see your oncologist or gastroenterologist to discuss. ...Read more

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Can I be screened for colon cancer with a CT scan instead of a colonoscopy?

Can I be screened for colon cancer with a CT scan instead of a colonoscopy?

Sometimes: Ct colography is never meant to replace a colonoscopy. At high volumn centers, the detection sensitivity of ct exam is indeed comparable to colonoscopy but you need to know the rate of detection of your imaging facility. Bowel prep is required for both procedures - no way around the unpleasant process. Beware that there is significant radiation exposure with the exam. ...Read more

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Doc could not complete colonoscopy due to severe angulation in sigmoid and thickened colon had anesthesia. Any future problem?What next?

Doc could not complete colonoscopy due to severe angulation in sigmoid and thickened colon  had anesthesia.  Any future problem?What next?

Sounds complicated: Given your history, it sounds very complicated! recovering from a perforated colon, a colonoscopy is good to help get answers. There are very advanced docs who do colonoscopies with special equipment. It might be worth getting a referral to someone with more specialized training and tools who can try to navigate. ...Read more

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What are the chances of colon cancer with a 1.5cm polyp?

What are the chances of colon cancer with a 1.5cm polyp?

Very rare: Polyp is a premalignant condition, which means that if you let it go without removing it, it will turn into cancer. Usually takes an average of 10 years for a polyp to turn into cancer. The larger the polyp the greater the chance to have cancer, the size of 2cm could be worrisome. It is recommended to have repeat colonoscopy 3 years after removing the polyp for surveillance. ...Read more

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What type of bowel movements should be expected with a stent put in for colon cancer ?

Depends on location: If the obstruction being treated if up in the colon and successfully opens up the blockage, the bowel movements may be normal. If the stent is in the rectum, close to the anus, the stools will likely be more thin than normal. ...Read more

Dr. Michael Puckett
46 doctors shared insights

Virtual Colonoscopy (Definition)

A virtual colonoscopy is a specialized abdominal ct scan. Using special software the abodminal ct images can be read for colon ...Read more