Bard Filter Study

Major IVC Filter Study Conducted

On November 8, 2010,  the Archives of Internal Medicine published a study conducted by William Nicholson M.D. and researchers from York Hospital in Pennsylvania.  This study examined the rate of IVC filter complications (fracture and migration) in patients who had been implanted with either the Bard Recovery and Bard G2 filter.  In short, the study concluded that the Bard Recovery and Bard G2 filters had a high rate of fracture and migration, which could be potentially life-threatening.

Nicholson and his colleagues evaluated 189 patients with an implanted Bard IVC filters between April 2004 and January 2009.  Among this group, 35 patients had died before the study was conducted, 10 had had their filter removed already, and one patient was pregnant.  Of the remaining 143 patients, only 84 patients were reached, and 80 agreed to participate in the study.  These 80 patients underwent fluoroscopy to assess the integrity of the filter.  Patients who experienced any kind of fragmentation of the filter underwent echocardiography and cardiac CT.  Out of the 80 patients, 52 had the Bard redesigned G2 filter.

IVC Filter Study Findings:

The Nicholson study found that 16 percent of the implanted filters fractured.  With the original Recovery filter, the researchers found that 25% had fractured (one or more arms of the filter had broken off).  Approximately 71% of the fragmented pieces migrated through the veins of the patient to the heart, presenting life threatening symptoms such as rapid heartbeat and fluid buildup, including sudden death.

Although Bard redesigned the original Recovery filter, renaming it the Bard G2, the study showed that 12 percent of the patients that had the G2 filter still experienced filter fractures.

If you have been implanted with a Bard filter, please call us immediately to discuss a potential IVC filter lawsuit, and allow us to determine if you may be entitled to compensation current situation.