Related Experiment Videos
Deployment problems with the titanium Greenfield filter
1Division of Cardiovascular and Interventional Radiology, Ohio State University Hospital, Columbus.
Journal of Vascular and Interventional Radiology : JVIR
|September 1, 1993
Summary
The modified hook titanium Greenfield filter showed promising initial results in preventing pulmonary embolism. Further investigation into its deployment mechanism is recommended for optimal performance.
Area of Science:
- Vascular Surgery
- Interventional Radiology
- Medical Device Technology
Background:
- Inferior vena cava filters (IVCFs) are crucial for preventing pulmonary embolism.
- The modified hook titanium Greenfield filter represents a novel approach to IVCF deployment.
- Evaluating the initial clinical experience with this new device is essential.
Purpose of the Study:
- To assess the initial experience and safety of deploying the modified hook titanium Greenfield filter.
- To evaluate the filter's positioning, leg distribution, and potential complications.
- To determine the early clinical outcomes associated with this IVCF.
Main Methods:
- Retrospective review of 23 patients undergoing filter placement over one year.
- Immediate post-placement radiographs to confirm filter position.
- Follow-up imaging in 15 patients (65%) to assess long-term outcomes.
Main Results:
- Twenty-four filters were successfully placed in 23 patients.
- Filter tilting (>15 degrees) occurred in 23% of cases without complications.
- Poor leg distribution was observed in 71% of placements, with limited success in corrective manipulation.
- Follow-up revealed three cases of asymptomatic inferior vena caval thrombosis and one recurrent pulmonary embolism.
Conclusions:
- No immediate adverse events directly attributed to filter placement were observed.
- The modified hook titanium Greenfield filter demonstrated a degree of safety in initial use.
- Further research into the filter's deployment mechanism is warranted to optimize performance and leg distribution.