Final Two-Year Outcomes for the Sentry Bioconvertible Inferior Vena Cava Filter in Patients Requiring Temporary Protection from Pulmonary Embolism.
Aged; Humans; Male; Adult; Female; Aged 80 and over; United States; Risk Factors; Middle Aged; Treatment Outcome; Time Factors; Young Adult; Prosthesis Design; Vena Cava Filters; Phlebography; Computed Tomography Angiography; Belgium; Chile; Vena Cava Inferior/diagnostic imaging; Prosthesis Implantation/adverse effects/instrumentation; Pulmonary Embolism/diagnostic imaging/prevention & control; Venous Thrombosis/diagnostic imaging/prevention & control
PURPOSE: To report final 2-year outcomes with the Sentry bioconvertible inferior vena cava (IVC) filter in patients requiring temporary protection against pulmonary embolism (PE). MATERIALS AND METHODS: In a prospective multicenter trial, the Sentry filter was implanted in 129 patients with documented deep vein thrombosis (DVT) and/or PE (67.5%) or who were at temporary risk of developing DVT/PE (32.6%). Patients were monitored and bioconversion status ascertained by radiography, computed tomography (CT), and CT venography through 2 years. RESULTS: The composite primary 6-month endpoint of clinical success was achieved in 97.4% (111/114) of patients. The rate of new symptomatic PE was 0% (n = 126) through 1 year and 2.4% (n = 85) through the second year of follow-up, with 2 new nonfatal cases at 581 and 624 days that were adjudicated as not related to the procedure or device. Two patients (1.6%) developed symptomatic caval thrombosis during the first month and underwent successful interventions without recurrence. No other filter-related symptomatic complications occurred through 2 years. There was no filter tilting, migration, embolization, fracture, or caval perforation and no filter-related deaths through 2 years. Filter bioconversion was successful for 95.7% (110/115) of patients at 6 months, 96.4% (106/110) of patients at 12 months, and 96.5% (82/85) of patients at 24 months. Through 24 months of follow-up, there was no evidence of late-stage IVC obstruction or thrombosis after filter bioconversion or of thrombogenicity associated with retracted filter arms. CONCLUSIONS: The Sentry IVC filter provided safe and effective protection against PE, with a high rate of intended bioconversion and a low rate of device-related complications, through 2 years of follow-up.
Dake MD; Murphy TP; Krämer AH; Darcy MD; Sewall LE; Curi MA; Johnson MS; Arena F; Swischuk JL; Ansel GM; Silver MJ; Saddekni S; Brower JS; Mendes R
Journal of Vascular and Interventional Radiology
2020
2020-02
Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).
journalArticle
<a href="http://doi.org/10.1016/j.jvir.2019.08.036" target="_blank" rel="noreferrer noopener">10.1016/j.jvir.2019.08.036</a>
Dual inferior vena cava: two inferior vena cava filters.
*Vena Cava Filters; Aged; Humans; Inferior/*abnormalities/anatomy & histology/*surgery; Male; Phlebography; Vena Cava
The formation of the venous drainage system of the human body is a complex process involving structures forming and regressing in a predefined order. Interruption of any one of these steps results in the formation of a congenital anomaly. Knowledge of these anomalies can prevent us from potential serious and sometimes fatal complications. Variations from the normal anatomy of the inferior vena cava (IVC) occur in 3% of the population. The complex embryology of the IVC stems from three pairs of fetal veins: (1) posterior cardinal veins, (2) subcardinal veins, and (3) supracardinal veins. The cardinal veins constitute the main venous drainage system of the embryo. Although venous anomalies are rare, their knowledge is crucial in diagnosis and treatment. These variations should not be mistaken for pathologic finding, but should be viewed as normal findings of abnormal embryogenesis. We present a case here identifying a dual IVC, subsequently leading us to place two IVC filters.
Hashmi Zubair A; Smaroff Gregory G
The Annals of thoracic surgery
2007
2007-08
Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).
<a href="http://doi.org/10.1016/j.athoracsur.2007.03.076" target="_blank" rel="noreferrer noopener">10.1016/j.athoracsur.2007.03.076</a>