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How to prevent death from silent killer ovarian cancer
Highlights
Regular testing for ovarian cancer could reduce deaths from this \"silent killer\" of women by a fifth, researchers said.There is no standard or routine test for early detection of ovarian cancer a process known as \"screening\" to boost survival chances by allowing for treatment to begin as soon as possible after disease onset.
Regular testing for ovarian cancer could reduce deaths from this "silent killer" of women by a fifth, researchers said.There is no standard or routine test for early detection of ovarian cancer a process known as "screening" to boost survival chances by allowing for treatment to begin as soon as possible after disease onset.
The rare but deadly disease, with few early symptoms, is often diagnosed at a very advanced stage, and about 60 percent of patients die within five years.
To test whether screening would be useful, researchers conducted a trial with more than 200,000 women between the ages of 50 and 74 in England, Northern Ireland and Wales.
The research team from Britain and Australia divided the women into three groups.
Over an average period of 11.1 years, 50,624 women were given an annual blood test as well as ultrasound scan, another 50,623 an annual scan only, and 101,299 women received no screening.
By the end, 649 of the women in the trial died of ovarian cancer, the team reported in The Lancet medical journal.
Comparing the groups, the researchers calculated a "mortality reduction" ranging from 15-28 percent depending on the number of years of screening.
On average, death was reduced by 20 percent.
The researchers calculated that 641 women would need to be screened to prevent one ovarian cancer death over a 14-year period.
"The findings are of importance given the limited progress in treatment outcomes for ovarian cancer over the last 30 years," said study co-author Usha Menon of University College London.
Screening improves the chances of diagnosing the disease, but there is also the question as to whether it helps the patient, or whether the money spent on investing in testing could be put to other uses.
Ovarian cancer mainly hits older women after menopause, with an added risk from an inherited faulty gene.
Experts who were not involved in the study pointed to the cost implications of screening for this rare cancer.
So-called "false-positive" results meant that three women had surgery for every one case diagnosed, said Adam Shaw of the Guys & St Thomas' NHS Foundation Trust, a research institution.
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