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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
3
|
| pubmed:dateCreated |
1985-9-16
|
| pubmed:abstractText |
Sixty-nine patients with a Greenfield inferior vena cava (IVC) filter in place for 1-9 years were evaluated with supine abdominal radiographs. In 22 patients (32%) the filter span diameter had increased by 3-11 mm, and in six patients (9%) it had decreased by 3-18 mm. Twenty patients (29%) had caudad migration of 3-18 mm, and four (6%) had cephalad migration. In five patients (7%) the filter was at an angle of more than 16 degrees from the vertical. A decrease in filter span of 7 mm or more may result in IVC occlusion, whereas an increase of 6 mm or more may result in caval wall penetration. Caudad migration may be caused by a fibrous reaction around the struts which slowly draws the filter caudally. A change in filter angle may result from displacement of a strut into the right renal vein as well as from physiologic changes. The abdominal radiograph is a valuable method for follow-up study of patients with Greenfield filters if the filter position, span, migration, and angle are noted in the report.
|
| pubmed:language |
eng
|
| pubmed:journal | |
| pubmed:citationSubset |
AIM
|
| pubmed:status |
MEDLINE
|
| pubmed:month |
Sep
|
| pubmed:issn |
0033-8419
|
| pubmed:author | |
| pubmed:issnType |
Print
|
| pubmed:volume |
156
|
| pubmed:owner |
NLM
|
| pubmed:authorsComplete |
Y
|
| pubmed:pagination |
613-8
|
| pubmed:dateRevised |
2004-11-17
|
| pubmed:meshHeading | |
| pubmed:year |
1985
|
| pubmed:articleTitle |
Greenfield caval filters: long-term radiographic follow-up study.
|
| pubmed:publicationType |
Journal Article
|