Final Two-Year Outcomes for the Sentry Bioconvertible Inferior Vena Cava Filter in Patients Requiring Temporary Protection from Pulmonary Embolism.

Authors

• Michael D Dake
• Timothy P Murphy
• Albrecht H Krämer
• Michael D Darcy
• Luke E Sewall
• Michael A Curi
• Matthew S Johnson
• Frank Arena
• James L Swischuk
• Gary M Ansel, OhioHealth
• Mitchell J Silver, OhioHealth
• Souheil Saddekni
• Jayson S Brower
• Robert Mendes
• SENTRY Trial Investigators

Document Type

Article

Publication Title

Journal of vascular and interventional radiology : JVIR

Abstract

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.

First Page

221

Last Page

230

DOI

10.1016/j.jvir.2019.08.036

Publication Date

2-1-2020

Recommended Citation

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; SENTRY Trial Investigators. Final Two-Year Outcomes for the Sentry Bioconvertible Inferior Vena Cava Filter in Patients Requiring Temporary Protection from Pulmonary Embolism. J Vasc Interv Radiol. 2020 Feb;31(2):221-230.e3. doi: 10.1016/j.jvir.2019.08.036. Epub 2019 Nov 8. PMID: 31711748.