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[Ventricular arrhythmia following thioridazine poisoning]
J Quieffin1, E Brochet, G Gamerman
1Service de Cardiologie, Hôpital Beaujon, Clichy.
Annales De Cardiologie Et D'Angeiologie
|April 1, 1991
Summary
Acute thioridazine poisoning can cause dangerous heart rhythm problems like torsades de pointes and affect consciousness. This case highlights Melleril
Area of Science:
- Cardiology
- Clinical Toxicology
- Pharmacology
Background:
- Thioridazine (Melleril) is an antipsychotic medication with known cardiac risks.
- Understanding its quinidine-like effect is crucial for managing poisoning.
Observation:
- A case of acute thioridazine poisoning presented with polymorphous ventricular tachycardia (torsades de pointes).
- Impaired conscious level was a significant clinical manifestation.
Findings:
- Electrocardiographic changes indicative of delayed repolarization were observed.
- Cardiac complications, specifically torsades de pointes, are directly linked to thioridazine's quinidine-like action.
Implications:
- Highlights the critical need for cardiac monitoring in thioridazine overdose.
- Emphasizes the proarrhythmic potential of thioridazine and the importance of recognizing its electrocardiographic signature.