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

Area of Science:

• Vascular Surgery
• Interventional Radiology
• Cardiovascular Medicine

Background:

• Pulmonary embolism (PE) remains a significant cause of morbidity and mortality.
• Inferior vena cava (IVC) filters are used to prevent PE in high-risk patients.
• Bioconvertible IVC filters offer a temporary solution, reducing long-term risks.

Purpose of the Study:

• To evaluate the 2-year outcomes of the Sentry bioconvertible IVC filter.
• To assess the safety and efficacy of the Sentry filter for temporary PE protection.

Main Methods:

• Prospective, multicenter trial involving 129 patients.
• Implantation of the Sentry IVC filter in patients with DVT/PE or at temporary risk.
• 2-year follow-up including radiographic and CT imaging to monitor filter status and bioconversion.

Main Results:

• 97.4% clinical success at 6 months.
• 0% symptomatic PE through 1 year; 2.4% through 2 years (non-procedure related).
• High bioconversion rates (95.7% at 6 months, 96.5% at 24 months) with no late IVC obstruction or thrombosis.

Conclusions:

• The Sentry IVC filter demonstrated safety and efficacy in preventing PE over 2 years.
• High rates of successful filter bioconversion were observed.
• Low incidence of device-related complications, including no filter migration, fracture, or death.