Value-based flow testing of chronic lymphoproliferative disorders: a quality improvement project to develop an...

Area of Science:

• Hematology
• Immunology
• Clinical Pathology

Background:

• Flow cytometry is crucial for diagnosing lymphoproliferative disorders (LPDs).
• Current flow cytometry panels are often extensive, increasing complexity and cost.
• Many LPD diagnoses are straightforward, potentially not requiring comprehensive panels.

Purpose of the Study:

• To develop a cost-effective flow cytometry strategy for LPDs in blood.
• To optimize LPD testing by analyzing retrospective flow study data.
• To reduce unnecessary antibody utilization in LPD diagnostics.

Main Methods:

• Retrospective analysis of flow cytometry studies for suspected LPDs.
• Identification of LPD frequencies, types, and correlations with patient age and absolute lymphocyte count.
• Development of flow-testing algorithms including screening and reflex testing.

Main Results:

• LPD likelihood increases with patient age and absolute lymphocyte count.
• CD5-positive LPDs are the most common type, accounting for 71% of cases.
• A new algorithm was devised, incorporating screening for low-risk patients and targeted CD5-positive LPD detection.

Conclusions:

• The proposed flow cytometry strategy is projected to decrease antibody utilization by 40%.
• This approach offers a more economical method for LPD evaluation.
• Optimized flow cytometry protocols can improve diagnostic efficiency and reduce healthcare costs.