Simulation analysis of platelet production and inventory management

Area of Science:

• Blood banking and transfusion medicine
• Operations research
• Health services management

Background:

• Platelet concentrate (PC) availability and minimizing outdating are critical competing objectives in blood banking.
• Current production and distribution methods may not optimally balance these competing criteria.

Purpose of the Study:

• To develop and evaluate a computer simulation model for optimizing platelet concentrate production and distribution.
• To determine the impact of different inventory management strategies on PC availability and outdating.

Main Methods:

• A computer simulation model was developed using 2 years of actual platelet order data from a regional blood center.
• The model calculated daily PC demand, mean demand, and standard deviation for each day of the week.
• Production levels were determined using a formula balancing mean demand, standard deviation, and current inventory, with 'T' as a variable multiplier.

Main Results:

• At a demand of 735 PC/week with a 3-day storage life, 99% availability correlated with 1% outdate and <1 day average age.
• 100% availability with 0% outdate was predicted with a 5-day storage life.
• Extending storage life to 7 days offered no further logistical improvement at this demand level.

Conclusions:

• A simulation-based approach enables predictive, rather than reactive, platelet production planning.
• Optimizing inventory management through simulation can significantly improve both PC availability and reduce waste.
• The model's principles are broadly applicable to various blood center logistics.