Unintentional Pediatric Lithium Exposure: A 15-Year Retrospective Analysis

Area of Science:

• Pediatric Toxicology
• Environmental Health
• Clinical Pharmacology

Background:

• Lithium exposure in children is rare and its effects are not well understood.
• Accidental or exploratory ingestions pose a unique challenge in pediatric care.

Purpose of the Study:

• To examine the clinical effects and outcomes of unintentional lithium ingestions in patients up to 16 years old.
• To characterize the safety profile of pediatric lithium exposure.

Main Methods:

• A single-state Poison Control System database was queried for pediatric lithium exposures managed in healthcare facilities from 2006-2021.
• Inclusion criteria focused on acute, oral lithium exposure in individuals 16 years or younger.

Main Results:

• 118 cases were analyzed, with 97% of patients 7 years or younger; 96% were exploratory ingestions.
• 85% of patients had no coded effects; 3% experienced mild to major effects, all associated with polydrug ingestions and fully recovered.
• Only 28% of available serum lithium concentrations were detectable, with 4 cases being supratherapeutic; no morbidity or mortality was reported.

Conclusions:

• The majority of unintentional pediatric lithium ingestions are exploratory and asymptomatic.
• Isolated lithium exposures appear benign, even with detectable serum concentrations.
• Further research is needed to establish clear guidelines for home care versus healthcare facility evaluation.