Abstract
BACKGROUND
Use of inferior vena cava (IVC) filters has been increasing over time. However, because of the increased risk of deep vein thrombosis with permanent filters, placement of retrievable filters has been recommended. Little is known about the factors associated with planned retrieval of IVC filters.
OBJECTIVE
To describe rates and predictors of plans to retrieve IVC filters in hospitalized patients.
DESIGN
We identified all IVC filter placements from 2001–2006 at an academic medical center and reviewed medical charts to obtain data about patient characteristics, filter retrieval plans, and retrieval success rates. Multivariable logistic regression was used to identify independent predictors of planned filter retrieval in patients with retrievable filters.
RESULTS
Out of 240 patients who underwent placement of retrievable IVC filters, only 73 (30.4%) had documented plans for filter retrieval. Factors associated with lower rates of planned filter retrieval included a history of cancer [adjusted odds ratio (OR) and 95% confidence interval 0.2 (0.1–0.5)] and not being discharged on anticoagulants [OR 0.1 (0.1–0.3)]. In addition, 36 (21.6%) of patients without retrieval plans had no contraindications to retrieval. Of the 62 patients who underwent attempted filter retrieval, 25.8% of filters could not be successfully removed.
CONCLUSIONS
Only 30.4% of patients who underwent placement of a retrievable IVC filter had documented plans for filter removal. Although most patients had justifiable reasons for filter retention, 21.6% of patients had no clear contraindications to filter removal. Efforts to improve rates of filter retrieval in appropriate patients may help reduce the long-term complications of IVC filters.
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Abbreviations
- IVC:
-
inferior vena cava
- SD:
-
standard deviation
- VTE:
-
venous thromboembolism
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Acknowledgements
This work was supported by a National Institute on Aging Paul B. Beeson Career Development award AG28978 (MF) and a University of California, San Francisco School of Medicine Student Summer Research Program grant (JM).
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None disclosed.
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Mission, J.F., Kerlan, R.K., Tan, J.H. et al. Rates and Predictors of Plans for Inferior Vena Cava Filter Retrieval in Hospitalized Patients. J GEN INTERN MED 25, 321–325 (2010). https://doi.org/10.1007/s11606-009-1227-y
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DOI: https://doi.org/10.1007/s11606-009-1227-y