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Updated: Mar 22, 2026

A Research Method For Detecting Transient Myocardial Ischemia In Patients With Suspected Acute Coronary Syndrome Using Continuous ST-segment Analysis
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Precordial ST-Segment Elevation Caused by Proximal Occlusion of a Non-Dominant Right Coronary Artery

Yen-Nien Lin1, Hsin-Yueh Liang1, Ping-Han Lo1

  • 1Division of Cardiology, Department of Internal Medicine, China Medical University Hospital, China Medical University;

Acta Cardiologica Sinica
|April 29, 2016
PubMed

Insights

This case report details a rare instance of isolated right ventricular infarction in a 49-year-old man. The study highlights electrocardiography findings and pathophysiologic mechanisms in ST-segment elevation myocardial infarction.

Area of Science:

  • Cardiology
  • Interventional Cardiology
  • Diagnostic Electrocardiography

Background:

  • ST-segment elevation myocardial infarction (STEMI) requires prompt primary percutaneous coronary intervention (PCI).
  • Electrocardiography (ECG) is crucial for guiding PCI to the culprit lesion.
  • Right coronary artery (RCA) occlusions can present with varied ECG manifestations.

Observation:

  • A 49-year-old male presented with STEMI, specifically ST-segment elevation in precordial leads.
  • Coronary angiography revealed a total occlusion of the proximal non-dominant right coronary artery.
  • The clinical presentation was unusual, prompting further investigation into its underlying mechanisms.

Findings:

  • The case demonstrates isolated right ventricular infarction, a less common manifestation of myocardial infarction.
  • Specific electrocardiography findings were analyzed in correlation with the coronary angiography results.
  • Pathophysiologic mechanisms contributing to this rare presentation were evaluated.

Implications:

  • This case underscores the importance of comprehensive ECG interpretation in STEMI, even with atypical presentations.
  • Understanding isolated right ventricular infarction improves diagnostic accuracy and therapeutic strategies.
  • The findings contribute to the literature on rare coronary artery disease presentations and their management.
Abstract

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