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June 26, 2017

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US panel urges closer scrutiny of pelvic surgical plastic mesh

WASHINGTON -- Trouble-prone medical products widely used to surgically repair women's pelvic problems need more stringent tests for safety and effectiveness, government advisers recommended Thursday.

In another case of a problem that was not flagged until patients got hurt, a panel of technical advisers urged the U.S. Food and Drug Administration (FDA) to reclassify plastic surgical mesh used to repair pelvic collapse.

If the FDA agrees with the consensus recommendation, manufacturers would be required to prove the safety and effectiveness of the products before they could continue to market them. The process could take several years.

Consumer groups want the agency to issue a recall now, but medical device manufacturers say mesh offers important advantages in the hands of a trained surgeon and the rate of serious complications is low.

An FDA review found problems that include pain, bleeding and infection, prompting the agency to warn patients and doctors. Some women have needed multiple surgeries to remove the mesh.

Safety concerns could prompt a shift back to traditional surgery with stitches to repair pelvic prolapse, a common condition affecting older women. Weakness of the muscles and tissues in the pelvic area allows the bladder, reproductive organs or rectum to bulge or slip into the vagina.

Mesh products were initially seen as a high-tech improvement over traditional surgery, which also has complications. Since similar mesh already was used in other types of surgery, the products received fast-track approval from the FDA without the tests that could now be required. Mesh was thought to make repairs last longer.

Then came the problems.

In July, the FDA issued a mea culpa, saying that it erred in its initial assessment that safety issues with mesh for pelvic collapse were rare. The agency said 10 percent of women experienced erosion or exposure of the mesh within 12 months of their initial surgery. More than half these women required follow-up surgery to remove the mesh. Some required two or three surgeries.

At the same time, the FDA said it saw no evidence that using mesh led to better outcomes over traditional surgery with stitches.

"If they had done studies on this product in the first place, we wouldn't be in this situation," said Diana Zuckerman, president of the National Center for Women and Families, a consumer group for women's health.

The FDA also is reviewing the use of mesh to treat urinary incontinence. But there have been fewer complications among incontinence patients than among those who underwent surgery for pelvic collapse.

The FDA is considering reclassifying the mesh products for pelvic collapse, an action that would require the manufacturers to submit evidence of safety and effectiveness to continue to market.

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