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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 IV: Interprofessional Care01:28

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IntroductionThe management of Acute Coronary Syndrome (ACS) aims to minimize myocardial damage, preserve myocardial function, and prevent complications.Initial ManagementInpatient management involves continuous cardiac monitoring, preferably in an ICU, focusing on blood pressure, serum sodium, potassium, and creatinine levels, and urine output. Ongoing pharmacologic management is crucial for stabilizing the patient.Supplemental Oxygen: Administer supplemental oxygen if oxygen saturation is...
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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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Introduction Cardiac Emergencies01:30

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Cardiac emergencies are critical situations involving the heart that require immediate medical intervention to prevent severe complications or death. These emergencies often arise from underlying heart conditions that impair the heart's ability to function correctly.Types of Cardiac EmergenciesThe most common types of cardiac emergencies include Acute Coronary Syndrome (ACS), myocardial infarction (MI), cardiac arrest, and heart failure.Acute Coronary Syndrome (ACS)Acute Coronary Syndrome (ACS)...
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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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Cardiopulmonary Resuscitation III: AED Use01:23

Cardiopulmonary Resuscitation III: AED Use

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Introduction to AEDAn Automated External Defibrillator (AED) is a portable medical device that analyzes the heart's rhythm and, if necessary, delivers an electrical shock to help the heart re-establish an effective rhythm during sudden cardiac arrest (SCA). SCA occurs when the heart suddenly and unexpectedly stops beating, leading to a loss of blood flow to the brain and other vital organs. In such emergencies, time is of the essence, and using an AED, combined with Cardiopulmonary...
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Signal Acquisition, Score Interpretation, and Economics of a Non-Invasive Point-of-Care Test for Coronary Artery Disease
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Emergency Department Utilization for Acute Myocardial Infarction, U.S., May-September 2018-2023.

Essi M Havor1,2,3, LaTonia C Richardson2, Omoye E Imoisili2,3

  • 1Epidemic Intelligence Service, Centers for Disease Control and Prevention, Atlanta, Georgia.

AJPM Focus
|November 17, 2025
PubMed
Summary
This summary is machine-generated.

Emergency department visits for acute myocardial infarction rose by 16.5% in May-September 2023 compared to the previous five years, coinciding with increased heat and wildfire smoke exposure in the U.S.

Keywords:
Acute myocardial infarctionNSSPemergency department visitssyndromic surveillance

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Area of Science:

  • Environmental Health
  • Cardiovascular Epidemiology
  • Public Health Surveillance

Background:

  • Extreme heat and wildfire smoke exposure are linked to increased risks of acute cardiovascular events.
  • The U.S. experienced significant heat and wildfire smoke during the summer of 2023, prompting concern for public health.

Purpose of the Study:

  • To assess if emergency department visits for acute myocardial infarction (heart attack) increased in 2023 compared to the preceding five years.
  • To analyze trends in acute myocardial infarction-related emergency department visits during a period of heightened environmental hazards.

Main Methods:

  • A serial cross-sectional study utilized National Syndromic Surveillance Program data for adults aged 18 years and older.
  • Discharge diagnosis codes identified acute myocardial infarction-related emergency department visits.
  • Daily visit rates from May-September 2023 were compared to the combined rates from May-September 2018-2022.

Main Results:

  • The daily rate of acute myocardial infarction-related emergency department visits was 16.5% higher in May-September 2023 compared to the 2018-2022 period.
  • Increased visit rates were observed across various age groups, sexes, and most U.S. Department of Health and Human Services (HHS) regions.
  • HHS Regions 2 and 4 showed the largest relative increases in acute myocardial infarction-related emergency department visit rates.

Conclusions:

  • Emergency department visits for acute myocardial infarction were significantly higher in May-September 2023 than in the preceding five-year period.
  • Near real-time surveillance data is valuable for monitoring acute cardiovascular conditions and informing public health strategies.
  • Findings highlight the potential impact of environmental factors like heat and wildfire smoke on cardiovascular health.