Partial plasma exchange, and adjunct in therapy to complex clinical problems

Area of Science:

• Hematology
• Transfusion Medicine
• Clinical Nephrology

Background:

• Partial plasma exchange (PPE) is a therapeutic apheresis technique used to manage complex clinical conditions.
• The procedure involves removing and replacing a portion of the patient's plasma with various solutions.
• Understanding the efficacy of PPE in specific patient populations is crucial for optimizing treatment strategies.

Purpose of the Study:

• To review the use of therapeutic partial plasma exchange (PPE) as an adjunct therapy.
• To evaluate the effectiveness of PPE in patients with procoagulant deficiency and hyperviscosity syndrome.
• To assess the impact of PPE on plasma protein levels and clinical outcomes.

Main Methods:

• The study reviewed the application of PPE in 12 patients over 15 months.
• PPE was performed using a Haemonetics Blood Cell Separator, exchanging plasma with fresh frozen plasma, cryoprecipitate-removed fresh frozen plasma, or plasma protein fraction.
• Patients were categorized into groups based on their underlying condition: procoagulant deficiency or hyperviscosity syndrome/platelet antibody.

Main Results:

• Five of six patients with procoagulant deficiency showed a satisfactory rise in procoagulant levels, leading to cessation of bleeding.
• One patient with suspected procoagulant inhibitor had only a minimal change in procoagulant levels.
• Six patients with hyperviscosity syndrome or platelet antibody showed responses dependent on the intensity of the PPE procedure.

Conclusions:

• Therapeutic partial plasma exchange (PPE) can be effective in managing bleeding associated with procoagulant deficiency.
• More intensive or repeated PPE, or plasmapheresis, may be necessary for conditions like hyperviscosity syndrome or when targeting humoral antibodies.
• PPE offers a valuable adjunctive treatment modality for specific complex hematological and immunological disorders.