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Optease vena cava filter optimal indwelling time and retrievability.
Uri Rimon1, Paul Bensaid, Gil Golan
1Department of Diagnostic Imaging, Chaim Sheba Medical Center, Affiliated to the Sackler School of Medicine, Tel-Aviv University, Tel-Aviv, 52621, Tel-Hashomer, Israel. rimonu@sheba.health.gov.il
Cardiovascular and Interventional Radiology
|June 18, 2010
Summary
Retrieving the Optease Inferior Vena Cava (IVC) filter is feasible, but success rates decrease with longer indwelling times. Early retrieval attempts, within 60 days, are recommended to minimize retrieval failures.
Area of Science:
- Medical Devices
- Interventional Radiology
- Vascular Surgery
Background:
- Inferior Vena Cava (IVC) filters are used to prevent pulmonary embolism in patients with venous thromboembolic disease.
- The Optease IVC filter is one such device, and its retrieval characteristics are important for patient safety and treatment efficacy.
- Assessing the indwelling time and retrievability of the Optease filter is crucial for understanding its performance in clinical practice.
Purpose of the Study:
- To evaluate the indwelling duration and success rate of retrieving the Optease IVC filter.
- To compare retrieval outcomes based on different time periods and retrieval policies.
- To identify factors influencing retrieval success and failure.
Main Methods:
- A retrospective analysis of 811 Optease IVC filter insertions between 2002 and 2009.
- Filter retrieval was attempted in 139 patients, divided into two groups based on retrieval policy changes (before and after December 31, 2006).
- Data collected included filter indwelling time, retrieval success/failure, reasons for failure, and fluoroscopy time.
Main Results:
- A total of 128 out of 139 attempted filter retrievals were successful (92%).
- The mean filter indwelling time was 25 days, with longer indwelling times observed in the later group (Group B: 31 days vs. Group A: 18 days).
- Eleven retrieval failures occurred, primarily due to inability to engage the hook (4) or filter sheathing (7) caused by intimal overgrowth. Retrieval failures were associated with longer indwelling times and significantly increased fluoroscopy duration.
Conclusions:
- The Optease IVC filter can be retrieved successfully in most cases.
- Retrieval attempts are feasible up to 60 days, but the likelihood of failure increases with prolonged indwelling time, particularly due to intimal overgrowth.
- Optimizing retrieval timing is essential to maximize success rates and minimize complications associated with Optease IVC filter removal.
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