Korean Circ J.  2010 Oct;40(10):536-538. 10.4070/kcj.2010.40.10.536.

Acute Myocardial Infarction by Right Coronary Artery Occlusion Presenting as Precordial ST Elevation on Electrocardiography

  • 1Division of Cardiology, Department of Internal Medicine, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea. jhleemd@hallym.or.kr


It is rare to observe ST-segment elevation in only the anterior leads and not the inferior leads during right coronary artery occlusion. We describe a case with acute myocardial infarction (MI) by right coronary artery occlusion who developed ST-segment elevation only in the precordial leads V1 to V3.


Electrocardiography myocardial infarction

MeSH Terms

Coronary Vessels
Myocardial Infarction


  • Fig. 1 Standard 12-lead electrocardiography recorded from a patient with chest pain. Note the presence of ST-segment elevations in leads from V1 to V3, and no ST-segment deviation in leads II, III, and aVF.

  • Fig. 2 Coronary angiographic findings of the patient. A: angiographically normal left coronary system. B: the inferior wall of the left ventricle was supplied with rich collaterals from left coronary system. C: coronary angiography showing complete luminal occlusion of the RCA proximally. D: the RCA after percutaneous coronary intervention. RCA: right coronary artery.


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