Outcomes after splenectomy in children: a 48-year population-based study.

Area of Science:

• Pediatric Surgery
• Infectious Disease Epidemiology
• Immunology

Background:

• Splenectomy in children can impair immune function, increasing infection risk.
• Long-term data on post-splenectomy infection rates and risk factors in pediatric populations are limited.

Purpose of the Study:

• To determine the long-term incidence of and risk factors for infection after splenectomy in children.
• To inform clinical management and preventative strategies for pediatric post-splenectomy patients.

Main Methods:

• Population-based cohort study utilizing the Rochester Epidemiology Project (REP) from 1966-2011.
• Inclusion of all children (<18 years) who underwent splenectomy.
• Statistical analyses included descriptive statistics, Kaplan-Meier estimates, and Cox proportional hazard ratios.

Main Results:

• Ninety pediatric patients underwent splenectomy; indications varied (trauma, hematologic disease, malignancy).
• Nineteen patients developed infections; risk factors identified were non-traumatic/non-malignant disease (HR 4.83) and multiple surgical procedures (HR 2.80).
• Estimated 15- and 20-year infection-free survival rates were 97%.

Conclusions:

• The majority of children do not experience post-splenectomy infections.
• Vaccination rates were 72%, with lower rates in trauma cases.
• Multiple surgical procedures significantly increased infection risk in pediatric splenectomy patients.