Human papilloma virus test increases cancer detection rate, study finds

Adding a simple, highly sensitive test for the human papilloma virus (HPV) to the administration of the routine Pap test significantly increases the detection rate for cervical cancer and lowers death rates from this invasive disease, researchers at Georgetown University Medical Centers Lombardi Cancer Center have found. Their findings are published in the May 8 Journal of the American Medical Association.

Using a computer model to simulate a large population of women 20 and older, the researchers evaluated the effectiveness of screening women with a combination of screening strategieswith both the HPV and Pap tests, with the Pap smear alone, or with only the HPV test. They found that using both screening tests, as opposed to the Pap test alone, would detect an additional 225 cancers per 100,000 women. The detection of these cancers would decrease cervical cancer mortality by 59%. HPV is a sexually transmitted virus and one of the leading causes of cervical cancer.

Current clinical guidelines recommend that women receive the Pap test alone every one to three years. Guidelines recently published by the American Society for Colposcopy and Cervical Pathology recommend HPV testing for women whose Pap test results are abnormal but inconclusive. The Georgetown study goes a step further by suggesting that adding the HPV test to biennial Pap tests at the outset is a cost-effective and potentially life-saving alternative for routine screening.

The incidence and death rates from cervical cancer have declined substantially in the United States over the last 50 years due to widespread Pap smear screening programs, but prior studies have shown that as many as half of all precancers or cancers could be missed by the Pap test. The HPV test detects the presence of the virus, whereas the Pap test (named for test designer George Papanicolaou) detects early abnormal cell changes that could lead to cervical cancer.

For years, Pap smears have been the st

Contact: Beth Porter
Georgetown University Medical Center

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