August 10, 2015 — A new study has linked Cook Medical’s Celect IVC filter with a 43% rate of vena cava perforation, compared to a 0% rate for the Option filter made by Rex Medical.
The conclusions of the study were published in June 2015 by the Journal of Vascular Interventional Radiology.
Researchers looked at outcomes for 86 people who were implanted with the Cook Celect and 86 patients implanted with the Option filter during a 33-month period. After an average of two months, the filters were retrieved. There was no significant difference in the rate of retrieval.
However, there was a significant difference in the rate of vena cava perforation by struts of the filter — 43% for the Celect versus 0% for the Option.
Several other studies have also linked the Celect filter to higher rates of perforation than other IVC filters. In 2012, a study of 27 patients implanted with the Celect found some degree of perforation for all patients after 71 days.
Another study published in 2009 involved 115 patients implanted with the Celect filter. Retrieval rates were good, but in some cases doctors struggled to remove the filter because it had become embedded in the vena caval wall.
In general, studies have found that IVC filters cause perforation in 9-25% of cases. This suggests the Celect may have higher rates of perforation than other filters. Perforation does not always cause injury, but it can damage surrounding tissues or organs and cause life-threatening complications.
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