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Cardiac dysrhythmia with the use of clonidine in explosive disorder
P M Dawson1, J A Vander Zanden, S L Werkman
1University of Colorado School of Medicine, Denver.
Insights
Clonidine can cause heart rhythm problems, even at low doses in children without heart issues. This case highlights potential cardiac risks of clonidine in pediatric patients.
Area of Science:
- Pediatric Cardiology
- Pharmacology
- Neuropsychiatry
Background:
- Clonidine is a medication commonly used for hypertension in adults.
- Cardiac dysrhythmia is a rare side effect, typically seen with pre-existing conditions or high drug concentrations.
Observation:
- A case study involving a child treated for intermittent explosive disorder with low-dose clonidine.
- The child had no prior history of cardiac disease.
Findings:
- The patient developed bradycardia (slow heart rate).
- Irregular sinoatrial node firing, indicative of cardiac dysrhythmia, was observed.
- These cardiac events were attributed to clonidine, despite low dosage and absence of underlying heart conditions.
Implications:
- This case suggests clonidine may induce cardiac dysrhythmia in pediatric patients even at low doses.
- Highlights the need for careful cardiac monitoring in children prescribed clonidine.
- Expands understanding of clonidine's potential adverse cardiac effects beyond adult populations or toxic levels.
Abstract:
Clonidine has been used in the management of hypertension in adults with few cases of cardiac dysrhythmia reported. These appear to occur most frequently in association with preexisting cardiac disease or toxic concentrations of the drug. We observed a case of clonidine-induced bradycardia and irregular firing of the sinoatrial node in a child who does not have cardiac disease given low doses of the drug in the treatment of intermittent explosive disorder.