A Multicenter Study of Real-world Practice for Management of Abnormal Liver Function Tests in Children with Acute

Yoon Lee1, Dae Yong Yi2, Yoo Min Lee3

  • 1Department of Pediatrics, Korea University Medical Center Anam Hospital, Seoul, Korea.

Insights

Abnormal liver function tests (LFTs) are common in young children with infections, particularly respiratory ones. Recovery depends on age and infection history, with variations in practice observed among physicians.

Area of Science:

  • Pediatric Infectious Diseases
  • Hepatology
  • Clinical Practice Research

Background:

  • Abnormal liver function tests (LFTs) are frequently observed in pediatric patients diagnosed with acute infectious diseases.
  • Limited studies and a lack of definitive clinical guidelines exist for managing these cases.
  • This study investigates the causes and contributing factors of prolonged liver enzyme elevation in children.

Purpose of the Study:

  • To identify the causes and factors associated with prolonged liver enzyme elevation in pediatric patients with acute infectious diseases.
  • To analyze real-world clinical practices in Korea regarding the management of elevated liver enzymes in this population.
  • To understand the relationship between patient characteristics, infection types, and liver enzyme recovery.

Main Methods:

  • A retrospective study involving 613 pediatric patients (<18 years) with elevated alanine aminotransferase (ALT) levels due to acute infections across six Korean tertiary hospitals in 2018.
  • Infections were categorized into six groups: respiratory, gastrointestinal, urinary tract, other febrile disease, Epstein-Barr virus, and cytomegalovirus.
  • Data collected included physician specialty, follow-up duration, loss to follow-up rates, and diagnostic investigations performed.

Main Results:

  • Respiratory infections were the most common cause (45.0%), with rhinovirus being the most frequent pathogen (9.8%).
  • Older age correlated with better ALT recovery, while a higher number of infection episodes was linked to poorer recovery.
  • Pediatric gastroenterologists had higher follow-up rates; diagnostic tool utilization and hepatitis workup varied significantly by physician specialty and institution.

Conclusions:

  • Elevated LFTs post-systemic infection are common in pediatric respiratory infections and in infants under one year old.
  • Age, infection history, and initial LFT results influence ALT recovery time.
  • Significant inter-physician, inter-institution, and inter-specialty variations exist in clinical practice for managing these cases.
Abstract

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