Burns and long-term infectious disease morbidity: A population-based study.

Area of Science:

• Immunology
• Epidemiology
• Public Health

Background:

• Serious injuries, including burns, are known to suppress immune function, increasing susceptibility to infections.
• Emerging evidence indicates long-term immune dysfunction even after less severe burns.
• Understanding the long-term infectious disease burden after burns is crucial for patient outcomes.

Purpose of the Study:

• To investigate infectious disease morbidity in individuals following burn injuries.
• To determine if burn patients experience increased long-term hospital utilization for infectious diseases.
• To assess the long-term impact of burns on immune function related to infection risk.

Main Methods:

• A population-based longitudinal study utilized linked hospital morbidity and death data from Western Australia (1980-2012).
• Included 30,997 individuals hospitalized for a first burn, compared to a frequency-matched uninjured cohort (123,399).
• Multivariate regression models analyzed infectious disease admissions, hospital length of stay, and mortality rates.

Main Results:

• Burn survivors had double the infectious disease admissions and 3.5 times more hospital days than the uninjured cohort.
• Increased infectious disease admissions were observed for both severe and minor burns, persisting for over 10 years post-burn.
• The burn cohort showed a 1.75 times greater rate of mortality from infectious diseases within 5 years post-discharge.

Conclusions:

• Burn injuries have lasting detrimental effects on immune system function, leading to increased long-term infectious disease risk.
• The commonality of infections across different epithelial tissues suggests shared underlying pathophysiology post-burn.
• Further research into the mechanisms of post-burn immune dysfunction is needed to develop effective clinical interventions.