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Related Concept Videos

Acute Coronary Syndrome I: Introduction01:30

Acute Coronary Syndrome I: Introduction

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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

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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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Myocarditis II: Clinical Features and Diagnostic Tests01:27

Myocarditis II: Clinical Features and Diagnostic Tests

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Myocarditis is an inflammation of the heart muscle. The symptoms vary widely, encompassing asymptomatic presentations to severe, acute manifestations.Clinical PresentationAsymptomatic cases: In some instances, myocarditis may be asymptomatic, with the infection resolving without intervention. These cases often go undetected unless discovered incidentally through diagnostic imaging or tests conducted for other reasons.General Early Symptoms: Early symptoms of myocarditis are non-specific and can...
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Angina III: Clinical Manifestations and Assessment01:29

Angina III: Clinical Manifestations and Assessment

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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...
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Myocarditis I: Introduction01:21

Myocarditis I: Introduction

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Myocarditis is inflammation of the myocardium, which is the muscular layer of the heart.EtiologyMyocarditis has a diverse etiology, including a wide range of infectious and non-infectious causes:Infectious CausesViral: Common viruses include Coxsackie A and B, adenovirus, parvovirus B19, enteroviruses, and influenza A.Bacterial: Examples include infections caused by Streptococcus, Staphylococcus, and Mycoplasma species.Rickettsial: Infections like Rocky Mountain spotted fever can result in...
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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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ST-segment Elevation: Myocardial Infarction or Simulacrum?

Nachiket Patel1, Elizabeth Ngo1, Timothy E Paterick1

  • 1Division of Cardiology, University of Florida College of Medicine, Jacksonville, FL.

Reviews in Cardiovascular Medicine
|February 2, 2017
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Summary
This summary is machine-generated.

Rapid diagnosis of ST-elevation myocardial infarction (STEMI) is crucial. This review highlights rare but critical STEMI mimickers that require careful consideration during acute coronary syndrome evaluation.

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Area of Science:

  • Cardiology
  • Emergency Medicine
  • Diagnostic Imaging

Background:

  • ST-segment elevation myocardial infarction (STEMI) requires prompt diagnosis and treatment.
  • A subset of patients with suspected STEMI present with conditions that mimic the electrocardiographic findings.
  • These STEMI mimickers can lead to diagnostic delays and inappropriate management.

Purpose of the Study:

  • To review and present rare but important clinical conditions that can mimic STEMI.
  • To enhance clinician awareness of these alternative diagnoses.
  • To improve the accuracy of STEMI diagnosis and patient outcomes.

Main Methods:

  • Literature review of rare conditions presenting as STEMI.
  • Case examples and discussion of diagnostic challenges.
  • Emphasis on differential diagnosis in suspected STEMI.

Main Results:

  • Identified several critical STEMI mimickers including coronary vasospasm, Takotsubo cardiomyopathy, Brugada syndrome, and aortic dissection.
  • Highlighted the importance of considering non-coronary causes for ST-segment elevation.
  • Demonstrated the potential for misdiagnosis without thorough evaluation.

Conclusions:

  • Recognizing STEMI mimickers is essential for appropriate patient care.
  • A broad differential diagnosis should be considered in STEMI alerts.
  • Timely identification of these conditions prevents unnecessary interventions and guides correct treatment.