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Untoward effects of lithium treatment in children aged four through six years
O R Hagino1, E B Weller, R A Weller
1Department of Psychiatry and Human Behavior, Brown University School of Medicine, Providence, RI 02903, USA.
Insights
Lithium treatment in young children frequently causes side effects, particularly in the first two weeks. Higher doses and serum lithium levels correlate with increased adverse events, especially in children with concurrent infections.
Area of Science:
- Pediatric Psychiatry
- Pharmacology
- Child Psychology
Background:
- Lithium is a mood stabilizer used in treating various psychiatric conditions.
- Its use in young children (4-6 years) requires careful monitoring due to potential side effects.
- Understanding dose-serum level relationships is crucial for safe pediatric treatment.
Purpose of the Study:
- To investigate the link between lithium dosage and serum levels with adverse effects.
- To identify the frequency and types of side effects in young children undergoing lithium treatment.
- To explore factors influencing lithium-induced toxicity in this age group.
Main Methods:
- Retrospective review of clinical and research records for 20 hospitalized children (4-6 years).
- Children were treated with lithium following a standard inpatient protocol.
- Side effects were systematically categorized by organ system and severity based on psychiatric staff reports.
Main Results:
- 60% of children experienced side effects within the first two weeks of lithium treatment.
- Central nervous system effects were the most commonly reported adverse events.
- Side effects occurred at doses of 25.6–52.1 mg/kg/day and serum levels of 0.65–1.37 mEq/L, generally increasing with higher doses/levels.
Conclusions:
- Adverse effects are common in children aged 6 and under during initial lithium therapy.
- Higher milligram per kilogram doses and serum lithium levels are associated with increased side effects.
- Concurrent medical conditions may exacerbate lithium-induced adverse events in young patients.
Objective:
To explore the relationship between lithium dose and serum lithium level on the occurrence of untoward or toxic effects of lithium in the treatment of 20 hospitalized aggressive and/or mood-disordered children aged 4 through 6 years.
Method:
Clinical and research records of 20 children treated with lithium according to an established inpatient protocol were reviewed. Side effects as reported by psychiatric staff were categorized by organ system affected and severity.
Results:
During the initial 2 weeks of lithium treatment, 60% of the children manifested one or more types of side effects, most commonly central nervous system effects. Side effects were seen at doses of 25.6 to 52.1 mg/kg per day and at serum levels from 0.65 to 1.37 mEq/L. In general, adverse effects were associated with higher lithium doses and lithium levels and were most common during the first week of treatment. A potential interaction between concurrent infection and more severe side effects was seen.
Conclusions:
Side effects occur frequently in children aged 6 years and younger during the initiation phase of lithium treatment; are related to higher milligram per kilogram doses, higher serum lithium levels, and phase of treatment; and may be related to concurrent medical illness.