TUESDAY, April 30 (HealthDay News) -- Women with breast implants
could run the risk of having breast cancer diagnosed at later
stages, when survival might be worse, according to Canadian
Breast implants can make it more difficult to diagnose breast
cancer early because they block some areas of the breast on
mammograms, experts say.
"Women who currently have breast implants and those considering breast augmentation should be aware of the possible long-term health effects of cosmetic breast implants," said lead author Eric Lavigne, a Ph.D. graduate in epidemiology with the faculty of medicine at University Laval, in Quebec City.
"They should also be reassured that physicians and other health professionals will continue to offer the best medical practices to these women," he added.
To see whether breast implants had an effect on breast cancer
diagnosis and survival, Lavigne's team reviewed studies published
after 1993. This process, known as a meta-analysis, attempts to
find a consistent pattern from different studies. In many cases,
these patterns aren't the focus of or apparent from each individual
study, but emerge only after the data are combined.
In this case, by analyzing 12 studies, the researchers found
that women with breast implants had a 26 percent increased risk of
being diagnosed with late-stage breast cancer compared to women
When Lavigne's group looked at another five studies, they found
that women with breast implants had a 38 percent increased risk of
dying from breast cancer than women without implants.
This finding "may be explained by the advanced breast cancer
diagnosis received," Lavigne said.
These results, however, need to be interpreted with caution
since only a small number of studies were included in this summary,
and many factors in each study can affect the overall results, he
Although the analysis linked breast implants to later-stage
breast cancer diagnoses, it did not establish a cause-and-effect
The report was published online April 30 in the journal
Dr. Stephanie Bernik, chief of surgical oncology at Lenox Hill
Hospital in New York City, said she will be more cautious with
"Patients ask if it's OK to do implants," Bernik said. "We don't tell them not to, but they have to understand that it comes with a risk of obscuring some of the breast tissue."
If someone has a family history of breast cancer, they should be
cautious, Bernik said. "Everybody should be informed that there is
this problem," she said. "It will limit the ability for cancer
detection with mammography."
Bernik suggested that women with breast implants also have an
ultrasound or MRI to get around the problem of the implant hiding
breast tissue during a mammogram. She said, however, that for this
purpose MRIs aren't covered by insurance.
To learn more about breast cancer, visit the
American Cancer Society.
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