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Optimizing IVC Filter Utilization: A Prospective Study of the Impact of Interventional Radiologist Consultation.
MedLine Citation:
PMID:  22954548     Owner:  NLM     Status:  In-Data-Review    
PURPOSE: The use of inferior vena cava filters (IVCFs) is under increasing scrutiny because of device safety and economic considerations. The aim of this study was to test the hypothesis that interventional radiologist (IR) consultation results in better utilization of optional and permanent filters.
METHODS: Over 6 months, an IVCF decision-making database at a single institution was prospectively studied. After IR consultation, each case was classified as concordant (agreement between the referring physician and the IR over filter choice) or discordant (disagreement over filter choice). The consulting IR estimated the likelihood of retrieval attempt for all optional filters at the time of placement (0%-100%). Chi-square and t tests were used for statistical analyses. The null hypotheses were rejected at P < .05.
RESULTS: Sixty-six IVCFs (23 permanent, 43 optional) were placed in 66 patients. Sixteen of 66 decisions were discordant. In 7 of the 16 discordant cases, patients received optional filters; of these, 6 (86%) were declared permanent by the referring physician. For this group, the IR's prospective estimate of subsequent retrieval was 6.4% (0%-15%; P < .001). Fifty of 66 decisions were concordant. Of these, 36 patients received optional filters. Thirty-one of 36 concordant optional filters (86%) were successfully retrieved (P < .001). For this group, the IR's prospective estimate of subsequent retrieval was 88.3% (80%-100%; P < .001). Of the 5 concordant devices not retrieved, 2 patients died, and 3 devices were declared permanent. There were no IVCF placement or retrieval failures. No patients were lost to follow-up.
CONCLUSIONS: Interventional radiologists can prospectively predict the likelihood of optional filter retrieval. Significantly higher retrieval rates are achieved as a result of IR consultation. Interventional radiologist consultation positively affects IVCF device choice, patient safety, and effective utilization.
Robert K Ryu; Pankit Parikh; Ramona Gupta; Aaron C Eifler; Riad Salem; Reed A Omary; Robert J Lewandowski
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of the American College of Radiology : JACR     Volume:  9     ISSN:  1558-349X     ISO Abbreviation:  J Am Coll Radiol     Publication Date:  2012 Sep 
Date Detail:
Created Date:  2012-09-07     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101190326     Medline TA:  J Am Coll Radiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  657-60     Citation Subset:  IM    
Copyright Information:
Copyright © 2012 American College of Radiology. Published by Elsevier Inc. All rights reserved.
Section of Interventional Radiology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois.
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