Bard G2 Filter Problems and Complications
The Bard G2 IVC Filter System is a medical device created by C.R. Bard and approved by FDA in 2005. It was introduced as a successor or replacement for the Bard Recovery IVC Filter system, which was associated with a high number of fractures and other problems that occurred when the retrievable filter was left in place for extended periods of time.
Bard marketed the G2 IVC filter as having “enhanced fracture resistance”, “improved centering” and “increased migration resistance.” Unfortunately, the Bard G2 IVC filter has also been linked to a high rate of fractures and migrations.
According to an August 2010 study published in the Archives of Internal Medicine, the Bard G2 IVC filter fracture rate was 12%. In some of the cases, fractured pieces of the Bard G2 filter migrated to the hepatic vein or the lung. Researchers concluded that the incidence of Bard IVC filter fractures was proportional to the length of time that the retrievable device was left in place. Therefore, the rate of Bard G2 filter problems and complications may increase as time passes.
The Bard G2 IVC filter is designed to stop or catch blood clots travelling through the inferior vena cava, to prevent a pulmonary embolism. They are implanted in patients at risk for a pulmonary embolism, who are unable to take a medication to reduce the risk of blood clots or if such anticoagulants have failed.
When the Bard G2 IVC filter is left in place after the risk of a pulmonary embolism has passed, the legs or struts that extend out in a spider-like fashion may fracture or break. This could allow the pieces of the filter to travel through the bloodstream and get lodged in other parts of the body, usually the heart or lungs.
Symptoms of problems from a Bard G2 filter fracture or migration may result in severe and persistent chest pain and shortness of breath. This often results in emergency medical treatment to determine whether the symptoms are a heart attack or fracture of the IVC filter.