The Science Behind Silence: What Clinical Trials Revealed About IVC Filters

IVC filter side effects
Inferior Vena Cava (IVC) filters have been in use since the 1970s to prevent traveling blood clots. During that time, there have been hundreds of thousands of the filters implanted in patients across the country. Retractable IVC filters are designed to be used on a temporary basis, but they are often left in place long after they are needed. The longer they remain in your body, the more likely you will develop problems much as separation, perforation, or migration of the IVC filter. These IVC filter side effects can cause severe health problems, and even be fatal. Retractable IVC filters can also fail to stop blood clots effectively when they are not functioning properly, negating their use in many cases.

IVC Filters and Clinical Trials

In clinical trials, the retractable IVC filters tested were removed after a period of time, but there is also evidence that some of the difficulties encountered in the trials were suppressed, and that manufacturers of the filters may have known that the filters could put patients at risk. According to NBC News, medical device manufacturer C.R. Bard had a study commissioned for its IVC filters that showed a higher risk for complications than its competitor’s filters, yet the company kept the product on the market.

This evidence never came to light, leaving doctors and patients in the dark about risks of using a retractable IVC filter. Additionally, there were IVC filter risk factors that made these filters more dangerous for people with certain health conditions. Without that knowledge from the manufacturer, doctors might have unknowingly put you or a loved one at risk for a greater chance of harm.

Have You Experienced Side Effects From an IVC Filter?

The harmful side effects of an IVC filter may have been first been reported in clinical trials that were never made public. Documents were allegedly forged, allowing IVC filter manufacturer C.R. Bard to get FDA approval even though a human clinical trial had proved that filter migration could be a potentially fatal. In some clinical trials, the filter broke free of its surgically implanted location and migrated to the heart.

The clinical trials showed a high rate of risk for fractured filters and perforation of vital organs, yet over the course of a decade, C.R. Bard sold 34,000 of its Recovery retractable IVC filters that have been linked to 27 deaths and hundreds of complications. Perforation, fractured filters, poor deployment, pulmonary embolism, and device infection were also named IVC filter side effects.

How Science Supports Your Claim

If you’re experiencing IVC filter side effects, you may need the help of an attorney who understands how to investigate defective medical device cases. In many cases, your side effects may be coming from an IVC filter that was left inside your body when it should have been removed much earlier. Very few people need permanent filters of this type, and leaving one in when it should be removed is a major cause of many IVC filter side effects.

If you or a loved one has experienced any of these IVC filter side effects, submit your case for a free legal review today. We can review your case and help you determine the legal steps to take next, as you could be entitled to significant legal compensation for your injuries.


  • Stay up-to-date with the latest news, upcoming cases, attorney profiles and new changes in the law direct to your inbox.