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Acute myocardial infarction in a child with myocardial bridge

Xiao-Dong Liu1, Chun-Lei Sun1, Su-Ping Mu1

  • 1Department of Pediatrics, Weifang People's Hospital Affiliated to Weifang Medical College, Weifang 261041, China.

World Journal of Emergency Medicine
|September 13, 2014
PubMed

Insights

Myocardial bridge (MB) can cause myocardial infarction (MI) in children, a rare condition typically linked to Kawasaki disease. This case highlights MB as a potential pediatric MI cause.

Area of Science:

  • Pediatric Cardiology
  • Cardiovascular Pathology

Background:

  • Myocardial infarction (MI) is uncommon in children.
  • Kawasaki disease is the leading cause of pediatric MI.
  • Myocardial bridges (MB) are congenital anomalies where a segment of coronary artery travels through heart muscle.

Observation:

  • A 7.5-year-old boy presented with symptoms of acute myocardial infarction.
  • Diagnostic evaluations included ECG, coronary CT angiography, and emission computed tomography.
  • Differential diagnoses included MI, fulminant myocarditis, and coronary myocardial bridge.

Findings:

  • The patient received treatment including thrombolysis, supportive care, and anti-inflammatory agents.
  • Biomarkers (myocardial enzymes, troponin-I) normalized within 21 days.
  • Electrocardiogram abnormalities persisted, indicating myocardial damage.

Implications:

  • Myocardial bridging should be considered in the differential diagnosis of pediatric myocardial infarction.
  • This case expands the understanding of rare causes of MI in pediatric populations.
  • Further research is needed to elucidate the pathophysiology and management of MB-induced MI in children.
Abstract

Keywords:
Acute myocardial infarctionElectrocardiogramMyocardial bridge

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