ST elevation in the anterior precordial leads during right ventricular infarction: lessons learned during primary
C Cafri1, G Orlov, J M Weinstein
1Cardiology Department, Soroka Medical Center, Beer Sheva, Israel. cafricar@kruhama.org.il
Insights
ST elevation can indicate isolated right ventricular infarction. This case highlights extensive damage from percutaneous coronary intervention compromising left coronary artery collaterals to a dominant right coronary artery.
Area of Science:
- Cardiology
- Interventional Cardiology
- Myocardial Infarction
Background:
- ST elevation in anterior leads typically suggests anterior myocardial infarction.
- Isolated right ventricular infarction is often linked to non-dominant or codominant right coronary artery occlusion.
- Collateral circulation plays a crucial role in myocardial perfusion during coronary artery disease.
Observation:
- A rare case of isolated right ventricular infarction was observed.
- The infarction resulted from proximal occlusion of a dominant right coronary artery.
- Collateral circulation from the left coronary artery was present.
Findings:
- Primary coronary angioplasty led to the compromise of these vital collateral vessels.
- This compromise resulted in extensive myocardial damage.
- An unusual angiographic pattern for isolated right ventricular infarction was noted.
Implications:
- Percutaneous coronary interventions carry risks to collateral circulation.
- Understanding collateral vessel dynamics is critical in managing complex coronary artery disease.
- This case underscores the importance of assessing collateral flow before intervention.
Abstract:
ST elevation in the anterior leads may be due to isolated right ventricular infarction associated with occlusion of a nondominant or codominant right coronary artery. The authors report a case of isolated right ventricular infarction from a dominant right coronary artery's proximal occlusion in the presence of collateral circulation provided by the left coronary artery. Extensive damage occurred owing to compromise of the collateral circulation during primary coronary angioplasty. This is an unusual angiographic pattern for isolated right ventricular infarction. The potential consequences of percutaneous interventions to collateral vessels is discussed.
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