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Anterior ST-segment elevation with right coronary artery occlusion: a unique case of isolated right ventricular

Kamran I Muhammad1, Samir R Kapadia

  • 1Department of Cardiovascular Medicine, Cleveland Clinic, Cleveland, Ohio 44195, USA. muhammk@ccf.org

Angiology
|April 5, 2008
PubMed

Insights

An unusual case showed anterior ST-segment elevation mimicking anterior myocardial infarction. This was caused by right coronary artery occlusion, leading to isolated right ventricular infarction, not left ventricular damage.

Area of Science:

  • Cardiology
  • Electrocardiography
  • Myocardial Infarction

Background:

  • Anterior ST-segment elevation typically indicates anterior left ventricular myocardial infarction from left anterior descending artery occlusion.
  • Anterior ST-segment elevation can also occur with right coronary artery occlusion, usually with concurrent inferior ST-segment elevation.

Observation:

  • This article reports a unique case of proximal right coronary artery occlusion.
  • The occlusion caused anterior ST-segment elevation without the typical inferior ST-segment elevation.

Findings:

  • Coronary angiography revealed left-to-right collaterals protecting the inferior left ventricular wall.
  • This protection led to isolated right ventricular infarction despite proximal right coronary artery occlusion.

Implications:

  • This case highlights that anterior ST-segment elevation can result from isolated right ventricular infarction.
  • Understanding this electrocardiographic pattern is crucial for accurate diagnosis and treatment of coronary artery disease.

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