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Efficacy of long duration resuscitation and magnesium sulphate treatment in amitriptyline poisoning
A Citak1, D Demirkol Soysal, R Uçsel
1Department of Paediatric Emergency, Institute of Child Health, University of Istanbul, Turkey.
Insights
Tricyclic antidepressant overdose in children can be fatal. Extended cardiopulmonary resuscitation and magnesium sulfate treatment proved effective in a severe amitriptyline poisoning case.
Area of Science:
- Emergency Medicine
- Pediatric Toxicology
- Cardiology
Background:
- Cyclic antidepressants, like amitriptyline, are common in pediatric overdose cases.
- Overdose can cause severe myocardial depression and life-threatening ventricular arrhythmias.
- Prompt recognition and management are critical for survival.
Observation:
- A 23-month-old child ingested a significant dose of amitriptyline (36 mg/kg).
- The child experienced cardiac and respiratory arrest, requiring 70 minutes of cardiopulmonary resuscitation (CPR).
- Ventricular tachycardia refractory to standard treatments (lidocaine, bicarbonate, cardioversion) developed.
Findings:
- Magnesium sulfate administration successfully normalized the cardiac rhythm.
- The patient experienced no adverse effects following magnesium sulfate treatment.
- Prolonged resuscitation efforts (at least 1 hour) are recommended for cyclic antidepressant-induced cardiopulmonary arrest.
Implications:
- Magnesium sulfate is a potentially life-saving treatment for refractory ventricular arrhythmias in cyclic antidepressant overdose.
- Extended CPR duration should be considered in pediatric cyclic antidepressant intoxication.
- This case highlights the critical need for advanced toxicological interventions in severe pediatric poisonings.
Abstract:
A single dose of cyclic antidepressants leads to death in childhood. Myocardial depression and ventricular arrhythmia are the severe side effects in cyclic antidepressant overdose. A 23-month-old boy was brought to hospital because 36 mg/kg of amitriptyline had been taken. Cardiopulmonary resuscitation was applied for 70 minutes due to cardiac and respiratory arrest. Circulation was restored after resuscitative efforts. However, ventricular tachycardia was detected which did not respond to lidocaine, bicarbonate and cardioversion treatment. Magnesium sulphate treatment was started and cardiac rhythm normalized. No side effects were observed. The duration of resuscitation should be extended in cases of cardiopulmonary arrest secondary to tricyclic antidepressants intoxication. It should be continued at least for 1 hour. Magnesium sulphate was found to be extremely effective in a case of amitriptyline intoxication refractory to treatment.
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