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Vena Tech vena cava filter: experience and early follow-up
F C Taylor1, M H Awh, C E Kahn
1Department of Radiology, University of Chicago.
Journal of Vascular and Interventional Radiology : JVIR
|November 11, 1991
Summary
The Vena Tech filter, used for preventing pulmonary embolism, demonstrated safety and effectiveness in 81 patients. While minor complications occurred, they were not clinically significant, indicating its reliable performance.
Area of Science:
- Vascular Surgery
- Interventional Radiology
Background:
- Vena caval filters are crucial devices for preventing pulmonary embolism.
- Low-profile introducer systems enhance percutaneous placement options for physicians.
Purpose of the Study:
- To evaluate the safety and efficacy of the Vena Tech filter for percutaneous placement.
- To assess the filter's performance in preventing pulmonary embolism, maintaining caval patency, and ensuring mechanical stability.
Main Methods:
- Percutaneous placement of the Vena Tech filter in 81 patients over a one-year period.
- Follow-up evaluation of filter performance, including pulmonary embolism prevention, caval patency, and mechanical integrity.
Main Results:
- Two cases of pulmonary embolism occurred post-placement.
- Three cases of caval thrombosis were observed, with two instances of recanalization.
- One filter fracture and one incomplete opening were noted; filter tilting and migration were minimal and not clinically significant.
Conclusions:
- The Vena Tech filter is a safe and effective option for the percutaneous prevention of pulmonary embolism.
- The device exhibits acceptable mechanical stability and maintains caval patency in most cases.