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.

Related Concept Videos

Prevention of Further Absorption of Poison01:14

Prevention of Further Absorption of Poison

In cases of acute poisoning, the primary objective is to prevent further absorption of the toxic substance into the body. Immediate interventions using various decontamination techniques targeting the gastrointestinal (GI) tract can achieve this. Decontamination is crucial to prevent poison from entering the systemic circulation, which involves washing affected areas with water and mild soap and removing contaminated clothing. Once external decontamination is done, attention must be turned to...
Anticholinesterase Agents: Poisoning and Treatment01:26

Anticholinesterase Agents: Poisoning and Treatment

Anticholinesterases, also known as cholinesterase inhibitors, work by blocking the breakdown of acetylcholine, leading to its accumulation in the synaptic cleft. This accumulation indirectly enhances both muscarinic and nicotinic actions. These agents are classified as reversible or irreversible based on their mechanism of action.     
Irreversible agents form a strong bond with the cholinesterase enzyme, making it inactive. The breakdown of the phosphorylated enzyme is slower than the...
Heart Failure Drugs: Inotropic Agents01:26

Heart Failure Drugs: Inotropic Agents

Positive inotropic agents are commonly used as the first line of treatment for heart failure. One such agent is digoxin, derived from the genus Digitalis, which has been known for centuries but effectively utilized since 1785. However, these cardiac glycosides can have potentially toxic effects due to their mechanism of action, which involves inhibiting Na+/K+-ATPase and increasing contractility. Digoxin is absorbed orally and distributed in various tissues, including the CNS. It has a long...
Pharmaceutical Poisoning: Treatment Strategies01:26

Pharmaceutical Poisoning: Treatment Strategies

Treatment strategies for poisoning are a critical aspect of emergency medicine, focusing on preventing the absorption of toxins and enhancing their elimination. When a poisoning incident occurs, the first response is to halt exposure and decontaminate the patient, particularly through gastrointestinal (GI) methods if the poison was ingested.Gastrointestinal Decontamination Techniques:Activated charcoal is the cornerstone of GI decontamination. It works through adsorption, binding the toxin to...
Cardiopulmonary Resuscitation IV: Pharmacological Management01:25

Cardiopulmonary Resuscitation IV: Pharmacological Management

Pharmacologic intervention is crucial in treating cardiac arrest patients during ACLS or Advanced Cardiovascular Life Support. The ACLS algorithms guide the administration of specific drugs based on the patient's cardiac arrest rhythm, which includes pulseless ventricular tachycardia (VT), ventricular fibrillation (VF), asystole, and pulseless electrical activity (PEA).EpinephrineIndication: Epinephrine is the first-line drug for all cardiac arrest rhythms.Mechanism of Action: Epinephrine...
Electroconvulsive Therapy01:30

Electroconvulsive Therapy

Electroconvulsive therapy (ECT), or shock therapy, remains a critical biomedical intervention for severe, treatment-resistant depression. While its origins can be traced back to Hippocrates' observations that malaria-induced convulsions alleviated mental illness, modern ECT has evolved significantly from its earlier, more primitive applications. First introduced in 1938 by Ugo Cerletti and his colleagues, ECT involves inducing controlled seizures using electrical currents. In its early years,...