Most recent edit on 2007-11-28 07:50:54 by KathyFromEngland [Restored to Original Version by Kathy]
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~*CT Colonography Alternative For Older Patients Who "Can't" Undergo Traditional Colonoscopy
CT Colonography Alternative For Older Patients Who "Can't" Undergo Traditional Colonoscopy
09 May 2007
CT colonography (CTC) is well tolerated by older patients and is successful in imaging the entire colon, in the vast majority of patients, despite presence of diverticular disease and colonic redundancy, according to a study conducted by researchers from Thomas Jefferson University in Philadelphia, PA.
"Many of the many referred for CTC were older patients who had experienced problems with conventional colonoscopy," said Anna Lev-Toaff, MD, lead author of the study.
The study consisted of 42 patients, age 60 and up. Twenty-nine percent of these patients were referred to CTC because conventional colonoscopy was contraindicated while 71% were referred because colonoscopy was incomplete, most commonly due to diverticular disease and colonic redundancy.
According to the study, successful imaging of the entire colon was achieved in 90% of the patients and no complications were observed. As might be expected given the history in these older patients, 93% of the patients had positive findings on CTC such as: diverticular disease and one or more polyps. Extracolonic findings were also commonly identified, with 62% having findings that could require further radiologic investigation, follow-up or medical or surgical treatment was needed in 25% of the patients.
"We were pleasantly surprised at the success rate in imaging the entire colon in these challenging patients," said Dr. Lev-Toaff. "Additional imaging was often required to optimally image the colon, most commonly imaging while the patient is lying on the right side to distend the left colon," she said.
The full results of the study will be presented on Monday, May 7, 2007 during the American Roentgen Ray Society Annual Meeting in Orlando, FL
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Edited on 2006-07-27 02:24:42 by KathyFromEngland
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Edited on 2006-07-23 08:14:30 by KathyFromEngland
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Articles about CT Colonography (CTC)
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Articles about CT colonography (CTC)
Edited on 2006-07-23 08:13:56 by KathyFromEngland
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Articles about CT colonography (CTC)
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*CT Colonography Even Safer Than Previously Reported, Says Study
*Title 2
*Title 3
CT Colonography Even Safer Than Previously Reported, Says Study
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CT Colonography Even Safer Than Previously Reported, Says Study
Oldest known version of this page was edited on 2006-07-19 06:50:18 by KathyFromEngland []
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CT Colonography Even Safer Than Previously Reported, Says Study
04 May 2006
The safety profile for CT colonography (CTC) is extremely favorable, particularly for the purposes of screening patients with no symptoms and when distending the
colon using an automated carbon dioxide technique, a finding that goes against the higher complication rates for CTC reported by other groups, according to a new study.
For this study, researchers analyzed 21,923 CTC procedures, including both diagnostic and screening procedures. Colonic distention was achieved by manual room air insufflation in 60% of cases and by automated carbon dioxide delivery in 40%. No perforations were recorded in patients undergoing screening CTC or with those who underwent the automated carbon dioxide delivery technique. Perforations were recorded in only two patients undergoing diagnostic CTC, and manual room air insufflation was employed in both cases. Only one of the two needed treatment for the perforation, and the one who was treated was already symptomatic prior to CTC due to annular sigmoid carcinoma. Overall, the researchers found that the complication rate for this procedure was 0.018%, or 4 out of 21,923 procedures.
According to the researchers, automated carbon dioxide delivery is much simpler and safer for the CT technologist to employ than manual room air insufflation, which was the method of distention used in the previous studies that reported a higher complication rate due to perforations. "The automated nature of carbon dioxide delivery removes the guesswork and patient coaching necessary with manual distention. In addition, this automated approach with low-pressure carbon dioxide provides improved distention and reduced post-procedure discomfort," said Perry J. Pickhardt, MD, of the University of Wisconsin Medical School and lead author of the study.
"Our results provide reassurance to patients that this minimally invasive examination is a very safe colorectal screening tool. 'Primum non nocere' (first do no harm) is particularly applicable to the screening of asymptomatic adults, which raises some important issues for screening with invasive colonoscopy," said Dr. Pickhardt.
The full results of the study will be presented in May 2006 during the American Roentgen Ray Society Annual Meeting in Vancouver, BC.
http://www.medilexicon.com/medicalnews.php?newsid=42641∞