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Atypical antipsychotic poisoning in young children: a multicentre analysis of poisons centres data

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Abstract

Although paediatric patients frequently suffer from intoxications with atypical antipsychotics, the number of studies in young children, which have assessed the effects of acute exposure to this class of drugs, is very limited. The aim of this study was to achieve a better characterization of the acute toxicity profile in young children of the atypical antipsychotics clozapine, olanzapine, quetiapine, and risperidone. We performed a multicentre retrospective analysis of cases with atypical antipsychotics intoxication in children younger than 6 years, reported by physicians to German, Austrian, and Swiss Poisons Centres for the 9-year period between January 1, 2001 and December 31, 2009. One hundred and six cases (31 clozapine, 29 olanzapine, 12 quetiapine, and 34 risperidone) were available for analysis. Forty-seven of the children showed minor, 28 moderate, and 2 severe symptoms. Twenty-nine cases were asymptomatic. No fatalities were recorded. Symptoms predominantly involved the central nervous and cardiovascular systems. Minor reduction in vigilance (Glasgow Coma Scale score >9) (62 %) was the most frequently reported symptom, followed by miosis (12 %) and mild tachycardia (10 %). Extrapyramidal motor symptoms were observed in one case (1 %) after ingestion of risperidone. In most cases, surveillance and supportive care were sufficient to achieve a good outcome, and all children made full recovery. Conclusions: Paediatric antipsychotic exposure can result in significant poisoning; however, in most cases only minor or moderate symptoms occurred and were followed by complete recovery. Symptomatic patients should be monitored for central nervous system depression and an electrocardiogram should be obtained.

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Abbreviations

Bpm:

beats per minute

CI:

confidence interval

ECG:

electrocardiogram

EPS:

extrapyramidal symptoms

GCS:

Glasgow Coma Scale

GfKT:

Society of Clinical Toxicology

HR:

heart rate

PSS:

Poisoning Severity Score

QTc:

QT interval corrected for heart rate

STIC:

Swiss Toxicological Information Centre

WHO:

World Health Organization

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The authors declare that they have no conflict of interest.

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Correspondence to Alessandro Ceschi.

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Meli, M., Rauber-Lüthy, C., Hoffmann-Walbeck, P. et al. Atypical antipsychotic poisoning in young children: a multicentre analysis of poisons centres data. Eur J Pediatr 173, 743–750 (2014). https://doi.org/10.1007/s00431-013-2241-y

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  • DOI: https://doi.org/10.1007/s00431-013-2241-y

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