Predictors of Severity in Pediatric Scrub Typhus

Area of Science:

• Pediatric Infectious Diseases
• Epidemiology
• Clinical Medicine

Background:

• Scrub typhus is a significant cause of febrile illness in children in endemic areas.
• Identifying predictors of severe scrub typhus is crucial for risk stratification and management.
• Current criteria for severe scrub typhus in children are adapted from adult studies.

Purpose of the Study:

• To determine clinical and laboratory factors that predict the severity of scrub typhus in pediatric patients.
• To identify specific indicators for early recognition of severe cases in children.

Main Methods:

• A prospective study conducted in a tertiary care hospital from November 2014 to October 2016.
• Included children under 12 years old with fever >7 days and positive IgM ELISA for scrub typhus.
• Utilized multivariate analysis to identify significant predictors of severe scrub typhus based on established criteria.

Main Results:

• Out of 230 children with scrub typhus, 91 (40.6%) had severe disease.
• Multivariate analysis identified five significant predictors: breathlessness (OR: 6.85), altered sensorium (OR: 11.48), leucocytosis (OR: 3.38), hypoalbuminemia (OR: 10.78), and hyponatremia (OR: 10.08).
• These factors were strongly associated with severe scrub typhus in the pediatric cohort.

Conclusions:

• Breathlessness, altered sensorium, leucocytosis, hypoalbuminemia, and hyponatremia are significant predictors of severe scrub typhus in children.
• These findings can assist clinicians in identifying high-risk pediatric patients requiring intensive monitoring and prompt treatment.
• Early recognition of these warning signs is vital for improving patient outcomes in childhood scrub typhus.