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Myocardial necrosis after envenomation by the scorpion Tityus serrulatus
L A Benvenuti1, K V Douetts, J L C Cardoso
1Laboratory of Pathology, Heart Institute (InCor), University of São Paulo Medical School, Av. Dr Eneas de Carvalho Aguiar 44, São Paulo, SP, 05403-000, Brazil. anpluiz@incor.usp.br
Abstract:
A 4 years old boy died a few hours after he had been stung by a scorpion (Tityus serrulatus). At necropsy, there were multiple foci of coagulative myocytolysis in the myocardium and pulmonary oedema. Myocardial necrosis was probably associated with the sympathetic storm induced by scorpion envenomation, and may have contributed to cardiac failure and death.
Insights
A fatal scorpion sting in a child caused myocardial necrosis and pulmonary edema. This suggests envenomation can lead to severe cardiac events and death.
Area of Science:
- Toxicology
- Cardiology
- Pediatrics
Background:
- Scorpion stings, particularly from Tityus serrulatus, represent a significant public health concern, especially in pediatric populations.
- Understanding the pathophysiology of severe envenomation is crucial for effective clinical management and reducing mortality.
Observation:
- A 4-year-old boy experienced a fatal outcome within hours of a scorpion sting.
- Autopsy revealed widespread coagulative myocytolysis in the heart muscle and significant pulmonary edema.
Findings:
- The observed myocardial necrosis is strongly linked to the sympathetic surge triggered by the scorpion venom.
- This cardiac damage likely played a pivotal role in the development of cardiac failure and the fatal outcome.
Implications:
- This case highlights the potential for Tityus serrulatus envenomation to induce severe, life-threatening cardiac complications in children.
- Early recognition and aggressive management of cardiovascular effects are critical in pediatric scorpion stings.
- Further research into the cardiotoxic mechanisms of scorpion venom is warranted to improve treatment strategies.