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 24 May 2018

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News

Awareness of colorectal cancer genetic testing among gastroenterologists

Although the majority of gastroenterologists do obtain a family history on their patients, further physician education regarding genetic testing for colorectal cancer predisposition is needed, finds a study in March's American Journal of Gastroenterology.

News image

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A team from New York, USA, investigated the awareness of genetic testing for colorectal cancer predisposition among specialists in gastroenterology.

Adult gastroenterologists practicing in New York State were surveyed to determine their practice with regard to identifying family histories consistent with inherited forms of colorectal cancer.

Their awareness of cancer genetic counseling and molecular genetic testing for familial adenomatous polyposis (FAP) and hereditary nonpolyposis colorectal cancer (HNPCC) was also assessed.

A closed-ended questionnaire was mailed to 815 gastroenterologists identified through the membership Directory of the American Gastroenterological Association (1998).

Two mailings resulted in a response rate of 35%.

Physicians' awareness of genetic tests:
FAP: 52%
HNPCC: 34%
American Journal of Gastroenterology

In all, 99% of the gastroenterologists obtained a family history from their patients, and 95% were aware of cancer genetic counseling.

However, only 51% would routinely refer patients for genetic counseling before providing cancer predisposition testing.

In addition, the researchers found that only 52% were aware of the availability of genetic tests for FAP, and 34% for HNPCC.

Presented with a family history consistent with HNPCC, 79% could identify the syndrome, 26% recommended genetic counseling for the consultand, and 16% advised appropriate screening, according to current recommendations.

Author S. Batra, of the Mount Sinai School of Medicine, New York, concluded on behalf of fellow colleagues, "The majority of gastroenterologists do obtain a family history on their patients.

"However, there is a need for physician education regarding the recognition of pedigrees consistent with inherited colorectal cancer, the genetic counseling process, and the availability of mutation testing for FAP and HNPCC."

Am J Gastroenterol 2002; 97 (3): 729-33
09 April 2002

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