Long-term optional retrievability of a new inferior vena cava filter in an ovine model.
Long-term retrievability of a new optional retrieval inferior vena cava (IVC) filter composed of a modified square stent and a modified Günther Tulip filter was tested in eight sheep. Eleven filters were placed into the IVC and eight were successfully retrieved 3-5 months after implantation. Incorporation of the filter struts into the IVC wall prevented its retrieval in three sheep at 3, 4, and 5 months after placement.
Hamada
Ayumi
A
Department of Radiology, Mie University School of Medicine, Japan.
Goktay
Ahmet Yigit
AY
Pavcnik
Dusan
D
Kaufman
John A
JA
Uchida
Barry T
BT
Timmermans
Hans A
HA
Correa
Luiz Otavio
LO
Keller
Frederick S
FS
Rösch
Josef
J
D000818:Animals; D019917:Blood Vessel Prosthesis Implantation; D020878:Device Removal; D004195:Disease Models, Animal; D005260:Female; D005500:Follow-Up Studies; D010690:Phlebography; D011474:Prosthesis Design / Q000145:classification; D012756:Sheep; D015607:Stents / Q000145:classification; D013997:Time Factors; D014654:Vascular Patency; D016306:Vena Cava Filters; D014682:Vena Cava, Inferior / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*