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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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Pathophysiology of Vomiting01:22

Pathophysiology of Vomiting

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Vomiting is a complex physiological response to expel harmful or irritating substances from the body. It's a defensive mechanism triggered by stimuli like poisons, microbial toxins, cytotoxic drugs, and mechanical abdominal distension. The process is centrally coordinated by the vomiting (or emetic) center located in the medulla of the brainstem. This area, rich in muscarinic M1, histamine H1, neurokinin 1 (NK1), and serotonin 5-HT3 receptors, coordinates the act of vomiting through...
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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 III: Medical Management01:14

Myocarditis III: Medical Management

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Myocarditis: Comprehensive Medical ManagementMyocarditis, the heart muscle inflammation, requires a comprehensive medical management strategy that addresses the underlying cause, provides supportive care, manages symptoms, and reduces cardiac workload.Infections and Autoimmune CausesAdminister appropriate antimicrobial therapy when an infectious agent causes myocarditis. For instance, penicillin treats infections caused by Group A Streptococcus. In cases where autoimmune processes are...
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Acute Coronary Syndrome V: Nursing Management01:26

Acute Coronary Syndrome V: Nursing Management

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Nursing Assessment:Nursing management of acute coronary syndrome (ACS) involves taking the patient's history, focusing on primary complaints such as chest pain, dyspnea, and excessive sweating (diaphoresis), as well as other symptoms like back or jaw pain, nausea, vomiting, palpitations, dizziness, and fatigue. The nurse also reviews the patient's history of cardiac events, risk factors such as hypertension, diabetes, smoking, family history, and current medications.In the objective assessment,...
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Related Experiment Video

Updated: Aug 31, 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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Acute ST-Elevation Myocardial Infarction Presenting With Persistent Vomiting.

Zoheb Backer1, Bola Nashed1, Arshan A Khan1

  • 1Internal Medicine, Ascension St. John Hospital, Detroit, USA.

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|August 19, 2022
PubMed
Summary
This summary is machine-generated.

Atypical acute coronary syndrome (ACS) presentations are often missed, leading to misdiagnosis and increased mortality. Prompt evaluation with EKG and troponins is crucial for patients with risk factors for non-characteristic myocardial infarctions.

Keywords:
acute coronary syndrome (acs) and stemidiabetes type 2ekg abnormalitiesnausea and vomitingst-elevation myocardial infarction (stemi)

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Area of Science:

  • Cardiology
  • Internal Medicine

Background:

  • Atypical presentations of acute coronary syndrome (ACS) are frequently overlooked in clinical practice.
  • Risk factors such as female gender, diabetes, hypertension, age >55, and smoking are linked to non-characteristic ACS.
  • Delayed diagnosis of ACS contributes to increased patient mortality.

Observation:

  • Female gender, diabetes, hypertension, age >55, and smoking are associated with atypical myocardial infarction presentations.
  • These non-characteristic symptoms often lead to exclusion from differential diagnoses.
  • Misdiagnosis of ACS results in elevated mortality rates.

Findings:

  • Patients with risk factors for atypical ACS require a low threshold for suspicion.
  • Electrocardiogram (EKG) and troponin testing are essential for prompt diagnosis.
  • Early intervention is critical for improving outcomes in ACS patients.

Implications:

  • Healthcare providers should consider atypical ACS presentations in at-risk populations.
  • Implementing routine EKG and troponin screening can reduce ACS misdiagnosis.
  • Timely diagnosis and intervention are vital for mitigating mortality associated with myocardial infarctions.