• Transfusion · Nov 2019

    Implementation and 2-year outcomes of the first FDA-approved implantable apheresis vascular access device.

    • Kristin L Gray, Isabella G Steidley, Hollie L Benson, Christine L Pearce, Amy M Bachman, and Jill Adamski.
    • Department of Nursing, Mayo Clinic Arizona, Phoenix, Arizona.
    • Transfusion. 2019 Nov 1; 59 (11): 3461-3467.

    BackgroundPatients requiring chronic apheresis treatments typically lack sufficient peripheral venous access to support long-term therapy. Historically, central venous tunneled catheters, septum-bearing subcutaneous ports, and fistulas were used to obtain required blood flow rates for apheresis procedures. In 2017, the US Food and Drug Administration approved the first intravascular device specifically designed for apheresis therapy, the PowerFlow Implantable Apheresis IV Port.MethodsSeveral preimplementation meetings with key hospital stakeholders were held to determine the most efficient and safest strategy for integrating the PowerFlow device into our practice. Interventional radiologists implanted the apheresis port in patients meeting specified criteria. Performance metrics and adverse events were evaluated over a 2-year period, July 2017 through June 2019.ResultsEighteen patients underwent apheresis therapy using the PowerFlow port. The most common apheresis therapy provided was extracorporeal photopheresis, followed by therapeutic plasma exchange and low-density lipoprotein apheresis. Flow rates up to 90 mL/min were obtained; the rates were limited by patient tolerance for the apheresis procedure. Complications included infection, obstruction due to fibroblastic sleeve, and migration of the vascular device. The estimated risk of PowerFlow-associated bloodstream infection in the study population was 0.18 per 1000 intravascular device days.ConclusionThe PowerFlow Implantable Apheresis IV Port can achieve flow rates necessary for all apheresis therapies and is a promising alternative vascular access device for patients undergoing apheresis.© 2019 AABB.

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