Long-term mortality in pediatric solid organ recipients-A nationwide study

Area of Science:

• Transplantation research
• Pediatric medicine
• Public health

Background:

• Long-term survival after childhood solid organ transplantation is a critical concern.
• Understanding mortality patterns in pediatric transplant recipients is essential for improving outcomes.

Purpose of the Study:

• To investigate long-term mortality in pediatric solid organ transplant (SOT) recipients.
• To identify the primary causes of death in this vulnerable patient group.

Main Methods:

• A cohort of 233 pediatric SOT recipients (kidney, liver, heart) in Finland (1982-2015) was analyzed.
• Matched controls (n=1157) were identified using the Population Register Center.
• Causes of death were determined using the Causes of Death Registry.

Main Results:

• A 130-fold increased mortality risk was observed in transplant recipients versus controls.
• 20-year survival rates varied by organ: kidney (86.1%), liver (58.5%), heart (61.4%).
• Leading causes of death included cardiovascular diseases (23%), infections (22%), and malignancies (17%).

Conclusions:

• Pediatric SOT recipients exhibit substantially higher late mortality rates compared to controls.
• Cardiovascular complications, infections, and cancers remain the primary drivers of mortality.
• Close monitoring of pediatric transplant patients is crucial for mitigating long-term mortality.