BACKGROUND: An Inferior vena cava filter (IVCF) provides prophylaxis against pulmonary embolism in patients that cannot be anticoagulated. A removable IVCF (R-IVCF) provides prophylaxis during a high-risk period while potentially eliminating long-term complications associated with a permanent IVCF. Factors influencing success of R-IVCF removal are ill-defined. METHODS: The study was a retrospective review of a prospectively maintained patient registry comprising patients who received an R-IVCF (Bard Recovery and G2) at an academic level 1 trauma center. The influence of time in vivo, filter design, and filter head position on computed abdominal tomographic (CAT) scan (touching caval wall vs. free) on removal success was examined. RESULTS: Ninety-two patients each received an R-IVCF. Thirty-nine patients underwent removal attempt and 30 R-IVCFs were removed. Time in vivo did not affect removal success (success: 228 +/- 104 days versus unsuccessful: 289 +/- 158 days, p = 0.18). Filter design impacted filter head position (Recovery: 43% touching versus G2: 6% touching, p = 0.023). Position of the filter head influenced removal success (touching: 50% success versus free: 88% success, p = 0.021). CONCLUSIONS: Position of the filter head is the key determinant of removal success. Specific device designs may impact filter head position as was the case with the two designs in this analysis. Time in vivo does not affect removal success.
BACKGROUND: An Inferior vena cava filter (IVCF) provides prophylaxis against pulmonary embolism in patients that cannot be anticoagulated. A removable IVCF (R-IVCF) provides prophylaxis during a high-risk period while potentially eliminating long-term complications associated with a permanent IVCF. Factors influencing success of R-IVCF removal are ill-defined. METHODS: The study was a retrospective review of a prospectively maintained patient registry comprising patients who received an R-IVCF (Bard Recovery and G2) at an academic level 1 trauma center. The influence of time in vivo, filter design, and filter head position on computed abdominal tomographic (CAT) scan (touching caval wall vs. free) on removal success was examined. RESULTS: Ninety-two patients each received an R-IVCF. Thirty-nine patients underwent removal attempt and 30 R-IVCFs were removed. Time in vivo did not affect removal success (success: 228 +/- 104 days versus unsuccessful: 289 +/- 158 days, p = 0.18). Filter design impacted filter head position (Recovery: 43% touching versus G2: 6% touching, p = 0.023). Position of the filter head influenced removal success (touching: 50% success versus free: 88% success, p = 0.021). CONCLUSIONS: Position of the filter head is the key determinant of removal success. Specific device designs may impact filter head position as was the case with the two designs in this analysis. Time in vivo does not affect removal success.
Authors: Riyad Karmy-Jones; Gregory J Jurkovich; George C Velmahos; Thomas Burdick; Konstantinos Spaniolas; Samuel R Todd; Michael McNally; Robert C Jacoby; Daniel Link; Randy J Janczyk; Felicia A Ivascu; Michael McCann; Farouck Obeid; William S Hoff; Nathaniel McQuay; Brandon H Tieu; Martin A Schreiber; Ram Nirula; Karen Brasel; Julie A Dunn; Debbie Gambrell; Roger Huckfeldt; Jayna Harper; Kathryn B Schaffer; Gail T Tominaga; Fausto Y Vinces; David Sperling; David Hoyt; Raul Coimbra; Mathew R Rosengart; Raquel Forsythe; Clay Cothren; Ernest E Moore; Elliott R Haut; Awori J Hayanga; Linda Hird; Christopher White; Jodi Grossman; Kimberly Nagy; West Livaudais; Rhonda Wood; Imme Zengerink; John B Kortbeek Journal: J Trauma Date: 2007-01
Authors: Ronald F Sing; Steven M Camp; B Todd Heniford; Edmund J Rutherford; Stephanie Dix; Patrick M Reilly; James H Holmes; Elliott Haut; Awori Hayanga Journal: J Trauma Date: 2006-04
Authors: Matthew A Corriere; Kenneth J Sauve; Kenneth J Suave; Juan Ayerdi; Brandon L Craven; Jeanette M Stafford; Randolph L Geary; Matthew S Edwards Journal: J Vasc Surg Date: 2007-04 Impact factor: 4.268