IN early March 2009, Erin Izumi, a woman in her 30s from Tacoma, Wash., underwent robotically assisted surgery to treat endometriosis. The operation at Franciscan Health System dragged on for nearly 11 hours. Ten days later, Izumi was rushed to an emergency room, where doctors discovered that her colon and rectum had been torn during the operation. She was hospitalized for five weeks, undergoing a series of procedures to repair the damage, including a temporary colostomy, according to her attorney Chris Otorowski.
But even though medical device manufacturers and hospitals are required to report every device-related death and serious injury to a database maintained by the Food and Drug Administration within 30 days of learning about an incident, no report about the case was made in 2009. Hospital officials declined to comment, and a spokeswoman for the manufacturer said it became aware of the incident only when Izumi filed a lawsuit. It disputed the claim and settled the case in May 2012.
That was not the only lapse in reporting problems with robotic surgical equipment, a new study has found. The equipment, called the da Vinci system, is made by Intuitive Surgical Inc. of Sunnyvale, Calif. It has been on the market for more than a decade; more than a million procedures have been
performed with it. Between January 2000 and August 2012, thousands of mishaps were reported to the FDA. In the vast majority of cases, the patient was not harmed, but among the reports were 174 injuries and 71 deaths related to da Vinci surgery,
according to a study published last week in The Journal for Healthcare Quality.
Yet by combing news reports and court records, researchers at Johns Hopkins were able to find examples of botched operations
that were not reported to the agency. They concluded that adverse events associated with theda Vinci were "vastly underreported." It is fairly well known that reports made to the FDA represent only "the tip of the iceberg" of surgical complications and adverse drug reactions, said Diana Zuckerman, the president of the National Research Center for Women and Families and an expert on the safety of medical devices, who was not involved in the study.
The consequence is that little is known of the real disadvantages of the equipment, and the injuries and deaths it may cause, even as robotic surgery is widely marketed to consumers, Zuckerman said. In a statement, Angela Wonson, vice president of
corporate communications at Intuitive, said that the new study "gives the misleading impression that Intuitive Surgical
has systematically failed in its obligation to timely report known adverse events to the FDA."
On the contrary, she said, "We take this requirement very seriously and make every effort to account for all reportable events - even those from several years prior."
The new study follows a series of reports critical of robotically assisted surgery. Documents surfacing in the course of legal action against Intuitive have outlined the aggressive tactics used to market the equipment and raised questions about the quality of training provided to surgeons, as well as the pressure on doctors and hospitals to use it - even in cases where it is not the physician's first choice and she has little hands-on experience.
Nevertheless, robotic surgery has grown dramatically, increasing more. than 400 per cent in the United States between
2007 and 2011. About 1,400 da Vinci systems, which cost $1.5m to $2.5m, have been purchased by hospitals, according to Intuitive's investor reports.
The expansion has occurred without proper evaluation and monitoring of the benefits, said Dr. Martin A. Makary, an associate professor of surgery at Johns Hopkins and the senior author of the paper.
"This whole issue is symbolic of a larger problem in American health care, which is the lack of proper evaluation of what we do," Makary said.
"We adopt expensive new technologies, but we don't even know what we're getting for our money - if it's of good vaue or that the reporting mandate "has no teeth," Makary added.
"In health care, one fifth of the wconomy, we have this haphazard smattering of reporting with no oversight,no enforcement and no consequences."
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