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Related Experiment Videos

Scorpion venom cardiomyopathy.

E B Kumar1, R S Soomro, A al Hamdani

  • 1Department of Cardiology, King Fabad Hospital, Al Baha, Saudi Arabia.

American Heart Journal
|March 1, 1992
PubMed
Summary

Scorpion stings can cause serious heart problems in children, affecting left ventricular function. Echocardiography helps monitor cardiac function, with prompt improvement indicating a better prognosis.

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Area of Science:

  • Pediatric Cardiology
  • Toxicology
  • Echocardiography

Background:

  • Scorpion stings are a significant health concern in children, potentially leading to cardiac complications.
  • Myocardial dysfunction following scorpion envenomation requires thorough investigation and monitoring.

Purpose of the Study:

  • To evaluate cardiac function in children with scorpion stings using serial echocardiography.
  • To identify echocardiographic predictors of myocardial toxicity and prognosis in pediatric scorpion sting cases.

Main Methods:

  • Serial echocardiography was performed on 30 children with scorpion stings.
  • Children were categorized into two groups based on initial left ventricular function: normal and compromised.
  • Ejection fraction, fractional shortening, left ventricular end-systolic dimension, and interventricular septal thickening fraction were assessed.

Main Results:

  • 12 children (group 2) presented with compromised left ventricular function (EF < 0.55, FS < 27%).
  • Group 2 showed increased left ventricular end-systolic dimension and depressed interventricular septal thickening fraction compared to group 1.
  • Nine children in group 2 improved within 24-48 hours; one child died, and another showed slow recovery.

Conclusions:

  • Myocardial toxicity is a frequent and severe complication of scorpion stings in children, predominantly affecting systolic function.
  • Serial echocardiography is valuable for tracking left ventricular function changes and clinical recovery.
  • Children with persistent cardiac dysfunction beyond 48 hours need close monitoring due to higher risk.

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