Cryofiltration apheresis for treatment of cryoglobulin-induced glomerulonephritis in renal transplant.

Transplant Proc

Vanderbilt University School of Medicine, Department of Veteran Affairs Medical Center,Nashville, TN 37212, USA.

Published: October 1995

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Introduction: Therapeutic apheresis (TA) is commonly used for cryoglobulinemic vasculitis (CV) patients, but its efficacy remains uncertain. This systematic review aimed to assess the efficacy of different TA modalities, such as plasma exchange (PE), plasmapheresis (PP), and cryofiltration (CF), in treating CV patients with renal involvement.

Methods: Literature search of MEDLINE, EMBASE, and Cochrane Databases was conducted up to December 2022.

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Article Synopsis
  • A 65-year-old male with nephrotic syndrome was hospitalized due to severe edema and skin issues, revealing impaired kidney function and cryoglobulinemia.
  • He received treatment that included corticosteroids and immunosuppressants, but initially struggled with steroid resistance, necessitating cryofiltration.
  • After treatment adjustments, the patient achieved complete remission and maintained it without symptoms for three years.
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Cryoglobulinemia can induce systemic vasculitis affecting various organs such as skin, peripheral nerves, and kidney. The disease can induce chronic organ failure and even be life-threatening. Cryofiltration has been applied for the treatment of cryoglobulinemic vasculitis.

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A system providing both appropriate cooling and warming are needed for the efficacy and safety of cryofiltration (CF) plasmapheresis. We measured some points of CF circuit temperatures with varying plasma flow rates (QP  = 10-40 mL/min) and the numbers of connecting cooling coils (one or two) under the conditions of blood flow rate (QB ) 100 mL/min with 7700-mm coil length, 19 turns, and 50-mL priming volume. We measured the respective temperatures of each point of starting/returning for an extracorporeal circuit (TA /TV ), intracooling coil (TC ), and post-plasma fractionator (PF) (TPF ).

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