The painless ST-elevation myocardial infarction equivalent: a case report.
Martin Medvid1, Salome Glauser, Fabian Zürcher
1Martin Medvid, Emergency Center, SRO Langenthal, St. Urbanstraße 67, Langenthal, Switzerland, m.medvid@sro.ch.
Croatian Medical Journal
|May 9, 2025
Summary
This case study emphasizes recognizing STEMI equivalents, like specific T-wave abnormalities on ECG, for diagnosing myocardial infarction. Early identification of non-ST-elevation myocardial infarction (NSTEMI) equivalents is crucial for timely intervention and preventing missed diagnoses.
Area of Science:
- Cardiology
- Diagnostic Imaging
Background:
- Chest pain evaluation requires nuanced interpretation of electrocardiogram (ECG) findings.
- Traditional ST-elevation myocardial infarction (STEMI) criteria may miss critical diagnoses.
Observation:
- A 61-year-old patient presented with intermittent chest pain and non-specific ECG changes.
- Biphasic T waves and met Wellens criteria, suggesting specific repolarization abnormalities.
Findings:
- Coronary angiography revealed left anterior descending artery occlusion and circumflex artery stenosis.
- Percutaneous transluminal coronary angioplasty with a drug-eluting stent treated the LAD occlusion.
Implications:
- Recognizing STEMI equivalents is vital for accurate diagnosis of myocardial infarction.
- The occlusion myocardial infarction (OMI)/non-OMI paradigm offers a more comprehensive approach than STEMI/NSTEMI classification.
Related Concept Videos
01:26Exercise Stress Test
141
Introduction
Exercise stress testing, commonly known as a treadmill test, is a noninvasive procedure used to evaluate cardiovascular function and diagnose heart conditions.
Definition
An exercise stress test measures the heart's response to exertion using a treadmill or stationary bicycle. Chest electrodes record the heart's electrical activity through an ECG, and blood pressure is monitored regularly.
Purposes
Exercise stress testing, commonly known as a treadmill test, is a noninvasive procedure used to evaluate cardiovascular function and diagnose heart conditions.
Definition
An exercise stress test measures the heart's response to exertion using a treadmill or stationary bicycle. Chest electrodes record the heart's electrical activity through an ECG, and blood pressure is monitored regularly.
Purposes
141
01:17Imaging Studies for Cardiovascular System I:Echocardiography
267
Cardiac imaging studies encompass a wide range of noninvasive and minimally invasive techniques designed to visualize the heart's structure and function in detail. One such technique is echocardiography, which uses high-frequency ultrasound waves to produce detailed images of the heart, known as echocardiograms.
Indications: Echocardiography is utilized to diagnose heart failure, valve disorders, and myocardial infarction. It also assesses cardiac structures' size, shape, and motion,...
Indications: Echocardiography is utilized to diagnose heart failure, valve disorders, and myocardial infarction. It also assesses cardiac structures' size, shape, and motion,...
267
01:29Electrocardiogram
1.6K
An electrocardiogram (ECG or EKG) is a critical diagnostic tool that records the electrical signals produced by the heart during each heartbeat. This recording is achieved through electrodes placed strategically on the arms, legs, and chest. The electrocardiograph amplifies these signals and produces 12 distinct tracings, offering a comprehensive understanding of the heart's electrical activity.
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and...
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and...
1.6K
01:20Blood Studies for Cardiovascular System I: Cardiac Biomarkers
69
Cardiac biomarkers are enzymes, proteins, and hormones released into the blood when cardiac cells are injured. They are powerful tools for triaging.
The essential diagnostic tools for detecting myocardial necrosis and monitoring individuals suspected of having acute coronary syndrome (ACS) include:
Troponins
Troponins, particularly cardiac troponins I and T, are the most precise and sensitive markers of myocardial injury. They are detectable within 4-6 hours of myocardial injury and remain...
The essential diagnostic tools for detecting myocardial necrosis and monitoring individuals suspected of having acute coronary syndrome (ACS) include:
Troponins
Troponins, particularly cardiac troponins I and T, are the most precise and sensitive markers of myocardial injury. They are detectable within 4-6 hours of myocardial injury and remain...
69