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Related Experiment Videos

Coronary spasm in two sisters

Y Fujiwara1, O Yamanaka, T Nakamura

  • 1Department of Cardiology International Goodwill Hospital, Yokohama, Japan.

Japanese Circulation Journal
|May 1, 1993
PubMed
Summary
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Two sisters experienced coronary artery spasm, a condition causing chest pain and heart attacks. Genetic factors may play a role in this vasospastic disorder, even with typical risk factors present.

Area of Science:

  • Cardiology
  • Genetics
  • Vascular Medicine

Background:

  • Coronary artery spasm (CAS) is a temporary narrowing of the coronary arteries.
  • It can lead to angina, myocardial infarction, and arrhythmias.
  • Risk factors include smoking, hypertension, and certain drug use.

Observation:

  • Two sisters presented with symptoms suggestive of coronary artery spasm.
  • Neither sister had significant obstructive coronary artery disease.
  • The elder sister experienced resting angina and ST-segment depression on stress testing.

Findings:

  • Intracoronary acetylcholine provocation induced diffuse vasospasm in the elder sister's left anterior descending artery.
  • The younger sister suffered an acute inferior myocardial infarction after methylergonovine use.

Related Experiment Videos

  • Coronary angiography revealed a thrombus in the right coronary artery, which was successfully treated with urokinase without residual stenosis.

    • Implications:

    • This case highlights the potential role of inherited factors in the pathogenesis of coronary artery spasm.
    • Understanding genetic predispositions may improve risk stratification and treatment strategies for vasospastic angina.
    • Further research into genetic links could offer novel insights into preventing and managing this condition.