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Acute myocarditis following Tityus trinitatis envenoming: morphological and pathophysiological characteristics
H Daisley1, D Alexander, P Pitt-Miller
1Department of Pathology, University of the West Indies, St. Augustine, Trinidad and Tobago.
Summary
Tityus trinitatis scorpion stings cause acute myocarditis, evidenced by toxic myocardial damage and coagulative myocytolysis. These findings support the theory of an adrenergic surge following scorpion envenoming.
Area of Science:
- Toxicology
- Cardiology
- Pathology
Background:
- Scorpion envenoming by Tityus trinitatis can lead to severe systemic effects.
- Cardiac complications are a significant concern in envenomed patients.
- Understanding the cardiac pathology is crucial for effective treatment.
Observation:
- Clinicopathological features of four Tityus trinitatis scorpion envenoming cases were analyzed.
- Cardiac histopathology revealed acute myocarditis with toxic and coagulative myocytolysis in two fatal cases.
Findings:
- The observed cardiac lesions resemble those in catecholamine-induced cardiotoxicity.
- Findings support the hypothesis of an adrenergic surge following Tityus trinitatis envenoming.
Implications:
- This study provides insights into the pathophysiology of scorpion envenoming-induced myocarditis.
- Results may inform treatment strategies for severe scorpion stings affecting the cardiovascular system.