Acute chest pain with ST-segment elevation in lead V1-V3: when you hear hoofbeats, also look for zebras
Patrizio Pascale1, Anna Giulia Pavon2, Jan Bogaert3
1Cardiology Division, Heart and Vessels Department, Lausanne University Hospital, BH 10-982, Rue de Bugnon 46, 1011, Lausanne, Switzerland. Patrizio.Pascale@chuv.ch.
Insights
ST-segment elevation (STE) in anterior leads usually indicates anterior myocardial infarction. However, this pattern can rarely signify isolated right ventricular infarction, a diagnostic pitfall discussed in this study.
Area of Science:
- Cardiology
- Electrocardiography
- Diagnostic Imaging
Background:
- ST-segment elevation (STE) in anterior precordial leads (V1-V3) is a primary indicator of anterior myocardial infarction.
- The right ventricular free wall is closely approximated by these anterior leads.
- Diagnostic errors can occur when STE in these leads is attributed solely to anterior myocardial infarction.
Observation:
- This study presents a series of 4 patients with ST-segment elevation in anterior leads.
- These patients exhibited electrocardiographic patterns mimicking anterior myocardial infarction.
- The underlying cause in these cases was isolated right ventricular infarction.
Findings:
- Anterior precordial STE can be an uncommon manifestation of isolated right ventricular infarction.
- Leads V1-V3's proximity to the right ventricle can lead to this diagnostic confusion.
- Recognizing this pattern is crucial for accurate diagnosis and timely treatment.
Implications:
- Clinicians must consider right ventricular infarction in the differential diagnosis of anterior STE.
- Differentiating between anterior and right ventricular infarction is critical for appropriate therapeutic strategies.
- Awareness of this diagnostic pitfall can improve patient outcomes by preventing delayed or incorrect management.
Abstract:
ST-segment elevation (STE) in the anterior precordial leads is the hallmark of anterior myocardial infarction. In rare cases, this ECG pattern may be due to isolated infarction of the right ventricle since leads V1-V3 directly overlie the right ventricular free wall. Herein, we aimed to provide clues to recognize and understand this diagnostic pitfall through a series of 4 patients presenting with STE in the anterior leads.
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