Leukapheresis and Hyperleukocytosis, Past and Future

Area of Science:

• Hematology
• Oncology
• Medical Technology

Background:

• Hyperleukocytosis is a life-threatening hematologic crisis characterized by excessive leukemic cell proliferation.
• It leads to severe complications and high early mortality, necessitating rapid and effective interventions.

Purpose of the Study:

• To review the development and clinical application of leukapheresis for treating hyperleukocytic leukemia.
• To highlight leukapheresis as an imperative adjuvant therapy.

Main Methods:

• Leukapheresis utilizes apheresis equipment to selectively remove leukocytes from peripheral blood.
• Autologous plasma, platelets, and erythrocytes are returned to the patient during the procedure.

Main Results:

• Leukapheresis rapidly removes excessive leukocytes, correcting metabolic abnormalities.
• It effectively alleviates leukostasis symptoms and is generally well-tolerated.
• This procedure is crucial for patients unsuitable for cytoreduction with Ara-C or hydroxyurea.

Conclusions:

• Leukapheresis is a critical intervention for managing hyperleukocytosis.
• It serves as an essential adjuvant therapy, particularly in specific patient populations.
• The review underscores the significance of leukapheresis in clinical practice for hyperleukocytic leukemia.