Switch to
| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
3
|
| pubmed:dateCreated |
1991-10-3
|
| pubmed:abstractText |
Initial efforts to modify the stainless steel Greenfield filter for percutaneous insertion led to development of a titanium Greenfield filter, which could be inserted by use of a 12F carrier. This device functioned well as a filter but had an unacceptable 30% rate of migration, tilting, and penetration. Therefore a titanium Greenfield filter with modified hooks was developed and has been tested in 186 patients at 10 institutions. Successful placement occurred in 181 (97%); placement of the remainder was precluded by unfavorable anatomy. A contraindication to anticoagulation was the most frequent indication for insertion (75%). All but two were inserted percutaneously, predominantly via the right femoral vein (70%). Initial incomplete opening was seen in four patients (2%), which was corrected by guide wire manipulation and asymmetry of the legs in 10 (5.4%). Insertion site hematoma occurred in one patient, and apical penetration of the cava during insertion occurred in a second patient. Both events were without sequelae. Follow-up examinations were performed at 30 days at which time 35 deaths had occurred. Recurrent embolism was suspected in six patients (3%) and two of three deaths were confirmed by autopsy. Filter movement greater than 9 mm was seen in 13 patients, (11%) and increase in base diameter greater than or equal to 5 mm was seen in 17 patients (14%). CT scanning showed evidence of caval penetration in only one patient (0.8%). Insertion site venous thrombosis was seen in 4/46 (8.7%) patients screened. The modified hook titanium Greenfield filter is inserted percutaneously or operatively through a sheath, eliminating concern for misplacement from premature discharge.(ABSTRACT TRUNCATED AT 250 WORDS)
|
| pubmed:language |
eng
|
| pubmed:journal | |
| pubmed:citationSubset |
IM
|
| pubmed:chemical | |
| pubmed:status |
MEDLINE
|
| pubmed:month |
Sep
|
| pubmed:issn |
0741-5214
|
| pubmed:author | |
| pubmed:issnType |
Print
|
| pubmed:volume |
14
|
| pubmed:owner |
NLM
|
| pubmed:authorsComplete |
N
|
| pubmed:pagination |
253-7
|
| pubmed:dateRevised |
2004-11-17
|
| pubmed:meshHeading |
pubmed-meshheading:1880833-Adolescent,
pubmed-meshheading:1880833-Adult,
pubmed-meshheading:1880833-Aged,
pubmed-meshheading:1880833-Aged, 80 and over,
pubmed-meshheading:1880833-Catheterization, Peripheral,
pubmed-meshheading:1880833-Equipment Design,
pubmed-meshheading:1880833-Equipment Failure,
pubmed-meshheading:1880833-Female,
pubmed-meshheading:1880833-Follow-Up Studies,
pubmed-meshheading:1880833-Humans,
pubmed-meshheading:1880833-Male,
pubmed-meshheading:1880833-Middle Aged,
pubmed-meshheading:1880833-Prospective Studies,
pubmed-meshheading:1880833-Surface Properties,
pubmed-meshheading:1880833-Survival Rate,
pubmed-meshheading:1880833-Thromboembolism,
pubmed-meshheading:1880833-Titanium,
pubmed-meshheading:1880833-United States,
pubmed-meshheading:1880833-Vena Cava, Inferior,
pubmed-meshheading:1880833-Vena Cava Filters
|
| pubmed:year |
1991
|
| pubmed:articleTitle |
Results of a multicenter study of the modified hook-titanium Greenfield filter.
|
| pubmed:affiliation |
University of Michigan, Ann Arbor.
|
| pubmed:publicationType |
Journal Article,
Clinical Trial,
Multicenter Study
|