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Second-degree heart block associated with envenomation by Vipera berus
1Accident and Emergency Department, Morrison Hospital, Swansea, England.
Archives of Emergency Medicine
|June 1, 1988
Summary
European adder bites cause significant illness but rarely death. While cardiac issues are uncommon, this case is the first to report heart block following a Vipera berus envenomation.
Area of Science:
- Herpetology
- Toxicology
- Cardiology
Background:
- Vipera berus (common European adder) envenomation is a recognized medical concern.
- Systemic effects of adder bites typically overshadow cardiac complications.
- Cardiac manifestations are usually limited to non-specific electrocardiogram (ECG) changes.
Observation:
- A case of a patient presenting with symptoms consistent with a European adder bite is described.
- The patient exhibited classical features of Vipera berus envenomation.
- This case uniquely involved the development of heart block.
Findings:
- The study details a rare cardiac complication of Vipera berus envenomation.
- Heart block was identified as a direct consequence of the snakebite.
- This represents the first documented instance of heart block following an adder bite.
Implications:
- Highlights the potential for severe cardiac complications beyond typical systemic effects in Vipera berus bites.
- Suggests the need for increased cardiac monitoring in patients with significant adder envenomation.
- Underscores the importance of reporting rare clinical presentations to advance understanding of snakebite pathophysiology.
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