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Published on: August 30, 2010
[Theophylline toxicity in infants]
M J López García1, M García Ballester, A Escribano Montaner
1Servicio de Pediatría, Hospital Clínico Universitario de Valencia.
Insights
Theophylline intoxication in infants is a significant risk, occurring in 9.5% of cases. Infants under 3 months are most vulnerable, highlighting the need for careful serum concentration monitoring.
Area of Science:
- Pediatric Pharmacology
- Neonatal Toxicology
- Clinical Therapeutics
Context:
- Theophylline is a bronchodilator used in infants.
- Assessing risks and clinical features of theophylline intoxication is crucial for patient safety.
- A 4-year comparative study was conducted to evaluate these factors.
Purpose:
- To identify risk factors for theophylline intoxication in infants.
- To describe the clinical manifestations of theophylline toxicity in this age group.
- To provide evidence-based recommendations for theophylline use in neonates.
Summary:
- The study found a 9.5% incidence of theophylline intoxication in infants.
- Infants aged 3 months or younger showed a higher tendency towards intoxication.
- Clinical manifestations included tachycardia, irritability, seizures, and severe metabolic disturbances, with no clear correlation between serum levels and severity.
Impact:
- Theophylline should be used cautiously in infants, especially those under 3 months.
- Close monitoring of serum theophylline concentrations is essential to prevent toxicity.
- Findings emphasize the need for individualized dosing and vigilant observation in pediatric patients.
Abstract:
In order to evaluate risk factors and clinical manifestations of theophylline intoxication in the infant, a comparative study between intoxicated and non intoxicated during a period of 4 years has been made. The incidence of this complication was 9.5% (7/74). Except for the cases of 2 children where there was an administrative error, everyone received a similar dose, finding great variability in the reaction to the drug. Only age seems to contribute to an increased tendency to intoxication (6/7 less than or equal to 3 months). Concerning the clinical manifestations, we do not find any correlation between the theophylline levels and severity. All the infants presented tachicardia and irritability, 3/4 tonic-clonic seizures and/or episodes and 1/7 severe metabolic disturbances. Only 1/7 had prodromic symptoms, therefore in view of the variability in individual tolerance, we believe that theophylline should not be used for small without an appropriate control of its serum concentrations.
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