Simon Nitinol IVC filter

• straightened form at cool temperatures (4-10C)
• reforms into predetermined filter shape at body temperatures

EFFICACY

• recurrent PE: 0 - 4.8%
• IVC thrombosis: 7 - 11% (by clinical symptoms)
• access site thrombosis: 2 - 10%

ADVANTAGES

• narrow introducer sheath (9 Fr)
• largest choice of access: brachial or left CFV approach without difficulty
• only mild MRI artifacts

DISADVANTAGES

• IVC thrombosis: symptomatic occlusion rates higher than reported wtih Greenfield or bird's nest filters
• caval penetration: 1 - 33%
• caudal drop: exact filter location difficult to predict

Related CHORUS documents: Vena-Tech IVC filter inferior vena cava (IVC) filters bird's nest IVC filter titanium Greenfield IVC filter inferior vena cava (IVC) filter: indications angiomyolipoma

Copyright © 2013, Charles E. Kahn, Jr.