Pediatric donor heart utilization variability among organ procurement organizations

Area of Science:

• Pediatric transplantation
• Organ procurement and utilization

Background:

• Organ procurement organizations (OPOs) manage organ donors, but pediatric donor heart utilization varies significantly.
• Understanding factors influencing this variability is crucial for improving pediatric heart transplant access.

Purpose of the Study:

• To investigate the reasons behind the observed variability in pediatric donor heart utilization rates among different OPOs.
• To identify key factors influencing the acceptance of pediatric donor heart offers.

Main Methods:

• Analysis of the Organ Procurement and Transplant Network database (2010-2019) for pediatric heart donors and recipients.
• Stratification of OPOs by utilization rates and comparison of top/bottom quintiles.
• Application of a machine learning algorithm to identify predictive factors for heart offer acceptance.

Main Results:

• No significant differences found in donor characteristics, management, or organ quality between high and low utilization OPOs.
• Machine learning identified prior donor offer refusals and listing center acceptance practices as primary drivers of organ acceptance.
• Neither OPO donor management nor cardiac function alone determined organ acceptance.

Conclusions:

• Variations in OPO clinical practices do not appear to explain disparities in pediatric donor heart utilization.
• Listing center acceptance behavior and the number of previous offer rejections are critical factors influencing heart utilization.
• These factors may partially account for observed OPO utilization rate variations due to regional OPO-listing center associations.