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Related Concept Videos

Acute Coronary Syndrome I: Introduction01:30

Acute Coronary Syndrome I: Introduction

180
Acute Coronary Syndrome (ACS) encompasses a spectrum of heart conditions caused by sudden obstruction of coronary arteries, typically resulting from the rupture of an atherosclerotic plaque and subsequent thrombus (blood clot) formation. This obstruction can lead to partial or complete blockage of blood flow, causing varying degrees of myocardial ischemia or infarction.ACS includes the following clinical entities:Unstable Angina (UA)Non-ST-Elevation Myocardial Infarction (NSTEMI)ST-Elevation...
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Acute Coronary Syndrome II: Pathophysiology and Clinical Manifestations01:19

Acute Coronary Syndrome II: Pathophysiology and Clinical Manifestations

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The pathophysiology of Acute Coronary Syndrome [ACD] involves several key processes:The main underlying cause of ACD is atherosclerosis, a chronic inflammatory disease characterized by the buildup of lipid-laden plaques within the coronary arteries.As the atherosclerotic plaque grows in the coronary artery, it may become unstable due to the formation of a lipid-rich core and a thin fibrous cap. Inflammatory cells within the plaque, such as macrophages, secrete enzymes that degrade the...
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Acute Coronary Syndrome III: Diagnostic Studies01:30

Acute Coronary Syndrome III: Diagnostic Studies

54
Diagnosing acute coronary syndrome or ACS begins with a thorough patient history. Notable symptoms include central, crushing chest pain radiating to the left arm, neck, jaw, or back, along with shortness of breath, sweating (diaphoresis), nausea, vomiting, dizziness, and palpitations.It is crucial to note any history of cardiac illnesses and assess risk factors, including age, gender, smoking, hypertension, diabetes, hyperlipidemia, and a sedentary lifestyle.During physical examination, vital...
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Electrocardiogram01:29

Electrocardiogram

4.1K
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...
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Angina III: Clinical Manifestations and Assessment01:29

Angina III: Clinical Manifestations and Assessment

62
Angina manifests as chest pain, tightness, or squeezing discomfort typically located behind the breastbone. It can radiate to the neck, jaw, shoulders, and inner aspects of the upper arms, most commonly the left arm. Patients may experience shortness of breath, fatigue, profuse sweating, dizziness, indigestion, heartburn, palpitations, anxiety, and vomiting as accompanying symptoms. This pain often lasts a few minutes and is triggered by physical exertion, emotional stress, heavy meals, or cold...
62
Ischemic Heart Disease: Overview01:17

Ischemic Heart Disease: Overview

2.1K
Ischemic heart disease occurs when the heart's blood supply dwindles, causing an ominous lack of oxygen and nutrients. This deficiency, stemming from reduced or obstructed blood flow, spells danger, leading to heart muscle damage and dysfunction.
Atherosclerosis, the primary malefactor, orchestrates this dangerous condition. It manifests as the accumulation of fatty deposits, akin to insidious plaques, within arterial walls. As time elapses, these plaques metamorphose, hardening and...
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Related Experiment Video

Updated: Oct 26, 2025

A Research Method For Detecting Transient Myocardial Ischemia In Patients With Suspected Acute Coronary Syndrome Using Continuous ST-segment Analysis
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A Research Method For Detecting Transient Myocardial Ischemia In Patients With Suspected Acute Coronary Syndrome Using Continuous ST-segment Analysis

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Not Every ST-Segment Elevation Is a STEMI.

Andrea C Merlo1, Fabio Pescetelli1, Pietro Ameri1,2

  • 1Department of Internal Medicine, University of Genova, Genova, Italy.

JACC. Case Reports
|July 28, 2021
PubMed
Summary
This summary is machine-generated.

Electrocardiograms are vital for diagnosing ST-segment elevation myocardial infarction. However, severe dysionia can mimic these ECG findings, highlighting the need for careful differential diagnosis in chest pain patients.

Keywords:
ECG, electrocardiogramRWMA, regional wall motion abnormalitiesSTEMI, ST-segment elevation myocardial infarctionelectrocardiogramelectrolyte imbalancemyocardial infarction

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Confirmation of Myocardial Ischemia and Reperfusion Injury in Mice Using Surface Pad Electrocardiography
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A Research Method For Detecting Transient Myocardial Ischemia In Patients With Suspected Acute Coronary Syndrome Using Continuous ST-segment Analysis
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Delayed Intramyocardial Delivery of Stem Cells after Ischemia Reperfusion Injury in a Murine Model
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Area of Science:

  • Cardiology
  • Medical Diagnostics

Background:

  • Electrocardiograms (ECG) are essential for diagnosing ST-segment elevation myocardial infarction (STEMI).
  • Chest pain, specific symptoms, and echocardiographic findings often accompany STEMI.
  • Differential diagnosis is crucial as other conditions can present with STEMI-like ECG changes.

Purpose of the Study:

  • To highlight that conditions other than STEMI can mimic ECG findings.
  • To present a case study of severe dysionia causing STEMI-like ECG changes.

Main Methods:

  • Case report presentation.
  • Review of electrocardiogram findings in a patient with severe dysionia.

Main Results:

  • The case demonstrated an electrocardiogram pattern mimicking STEMI.
  • Severe dysionia was identified as the cause of the electrocardiogram abnormality.

Conclusions:

  • Physicians must consider non-STEMI causes for ST-segment elevation on ECG.
  • Severe dysionia is a potential mimic of STEMI that requires clinical awareness.