|Long-term follow-up of Vena Tech-LGM filter: predictors and frequency of caval occlusion.|
|PMID: 10082099 Owner: NLM Status: MEDLINE|
|PURPOSE: To report the frequency of caval occlusion after Vena Tech-LGM filter placement and identify related factors and their potential clinical significance. MATERIALS AND METHODS: The filter was inserted into 243 patients, 142 of whom met inclusion criteria for this prospective study. Follow-up examinations performed every 2 years included clinical evaluation, plain frontal radiography of the abdomen, duplex scanning of the inferior vena cava (IVC), and/or phlebocavography. RESULTS: A progressive decrease in IVC patency was observed, reaching 66.8% at 9 years of follow-up. Complete caval occlusion occurred in 28 patients and was significantly (P < 10(-6)) associated with retraction in 24 cases. Caval occlusion was not related to age, sex, pulmonary embolism (PE), deep venous thrombosis level, underlying conditions predisposing to a thromboembolic disease before filter insertion, the level of filter placement, use of anticoagulant therapy, and death during follow-up. PE with anticoagulation failure was a predictive factor (P = .016) of subsequent filter occlusion during follow-up as compared to all other clinical indications for filter placement. Filter patency at 9 years of follow-up was 35.2% in the PE group with anticoagulation failure and 80% for other patients (odds ratio, 2.5; 95% confidence interval 1.16-5.4). CONCLUSION: PE with anticoagulation failure was the only factor predictive of subsequent caval occlusion observed in patients after Vena Tech-LGM filter placement. Caval occlusion was also related to Vena Tech-LGM filter retraction, which usually occurred at the time of occlusion.|
|D P Crochet; P Brunel; S Trogrlic; R Grossetëte; J L Auget; C Dary|
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|Type: Comparative Study; Journal Article|
|Title: Journal of vascular and interventional radiology : JVIR Volume: 10 ISSN: 1051-0443 ISO Abbreviation: J Vasc Interv Radiol Publication Date: 1999 Feb|
|Created Date: 1999-04-05 Completed Date: 1999-04-05 Revised Date: 2006-11-15|
Medline Journal Info:
|Nlm Unique ID: 9203369 Medline TA: J Vasc Interv Radiol Country: UNITED STATES|
|Languages: eng Pagination: 137-42 Citation Subset: IM|
|Department of Thoracic Radiology, Hemodynamics Center, Hôpital G. et R. Laënnec, CHRU Nantes, France.|
|APA/MLA Format Download EndNote Download BibTex|
Anticoagulants / therapeutic use
Leg / blood supply
Proportional Hazards Models
Pulmonary Embolism / etiology
Ultrasonography, Doppler, Duplex
Vena Cava Filters*
Vena Cava, Inferior / pathology*, radiography, ultrasonography
Venous Thrombosis / etiology*, radiography, ultrasonography
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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