Abstract
Retrieval of an optional inferior vena cava (IVC) filter with retained thrombus may result in pulmonary emboli if the trapped thrombus is not removed along with the filter. An in vitro model was developed to determine the fate of trapped thrombus during filter removal. An in vitro IVC flow model was created with 25-mm inner diameter tubing and a 50% glycerol/water solution. Three different optional filters-Recovery (Bard, Tempe, AZ), Günther-Tulip (Cook Inc., Bloomington IN), and OptEase (Cordis Endovascular/Johnson & Johnson, Warren, NJ)-were evaluated in the study. A known mass of mature thrombus (porcine, aged 1 wk) was trapped within the optional filters. The filters were then retrieved according to the manufacturers' protocol, and the mass of thrombus recovered with the filter was determined. For each filter, five iterations were performed with initial thrombus sizes less than 1 g (group A) and an additional five iterations with initial thrombus sizes greater than 1 g (group B). Thrombi from group A were statistically significantly smaller than those from group B (P < .0001). Retrieval of the Recovery filter resulted in an average of 25% (range, 0%-53%) and 4% (range, 0%-7%) of the clot being removed in group A and group B...Continue Reading
References
Jul 1, 1996·Abdominal Imaging·C E Ray, J A Kaufman
Feb 12, 1998·The New England Journal of Medicine·H DecoususG Simonneau
Feb 29, 2000·Journal of Vascular and Interventional Radiology : JVIR·S F MillwardP S Wells
Feb 29, 2000·Journal of Vascular and Interventional Radiology : JVIR·H LorchM Zwaan
Jul 11, 2000·Radiology·C A AthanasoulisC M Fan
Aug 29, 2000·Cardiovascular and Interventional Radiology·H LorchH D Weiss
Dec 1, 2000·Journal of Vascular and Interventional Radiology : JVIR·J A Reekers
Feb 17, 2001·Heart·M Riedel
Sep 6, 2001·Journal of Vascular and Interventional Radiology : JVIR·S F MillwardJ R Kachura
Dec 4, 2002·Radiology·Murray R Asch
Apr 12, 2003·Journal of Vascular and Interventional Radiology : JVIR·Thomas B Kinney
Jun 12, 2003·Archives of Surgery·Patrick J OffnerCharles Maines
Jun 21, 2003·Journal of Vascular and Interventional Radiology : JVIR·Elias N BrountzosAdrian C Ravenscroft
Sep 27, 2003·The British Journal of Radiology·T YamagamiT Nishimura
Oct 11, 2003·Journal of Vascular and Interventional Radiology : JVIR·Miguel Angel de GregorioRamón Alfonso
Nov 15, 2003·Stroke; a Journal of Cerebral Circulation·J KellyA Rudd
Dec 5, 2003·Journal of Vascular and Interventional Radiology : JVIR·Thomas B Kinney
Mar 19, 2004·Journal of Vascular and Interventional Radiology : JVIR·Jim A ReekersVincent L Oliva
Mar 26, 2004·Thrombosis Research·Timothy D GirardDaniel M Becker
May 6, 2004·Journal of Vascular and Interventional Radiology : JVIR·Richard L LeaskMatadial Ojha
Jun 11, 2004·Journal of Intensive Care Medicine·Michael B Streiff
Jul 28, 2004·Archives of Internal Medicine·Paul D SteinRonald E Olson
Apr 2, 2005·Journal of Vascular and Interventional Radiology : JVIR·Robert K KerlanRoy L Gordon