[Enterovirus infection as a risk factor of acute coronary syndrome and its complications]

Insights

Enterovirus infection is a key factor in acute coronary syndrome (ACS), directly contributing to its pathogenesis. This viral presence promotes the development of severe complications like cardiogenic shock and cardiac rupture in patients.

Area of Science:

  • Cardiology
  • Virology
  • Pathogenesis

Context:

  • Acute coronary syndrome (ACS) encompasses conditions like myocardial infarction (MI) and unstable angina (UA).
  • Cardiogenic shock and cardiac rupture are severe, often fatal, complications of MI.
  • The role of viral infections, specifically enteroviruses, in ACS pathogenesis is an area of ongoing research.

Purpose:

  • To quantitatively detect enterovirus antigens in patients with ACS.
  • To investigate the correlation between enterovirus antigen levels and the severity of ACS, including complications like cardiogenic shock and cardiac rupture.
  • To determine if enterovirus infection is a contributing factor to ACS and its severe outcomes.

Summary:

  • Enterovirus antigens were detected in blood (49%), coronary artery (95.8%), and heart tissues (54.3%) of ACS patients.
  • Elevated relative levels of enterovirus antigen in blood (RLEVA) were observed in patients with MI, particularly those with cardiogenic shock/cardiac rupture, compared to UA patients.
  • Higher RLEVA was found in necrotized myocardial areas and associated coronary vessels in patients with MI complicated by cardiogenic shock/cardiac rupture.

Impact:

  • Enterovirus infection is identified as a significant factor in ACS.
  • The findings suggest direct involvement of enteroviruses in the pathogenesis of ACS.
  • Enterovirus infection appears to promote the development of cardiogenic shock and/or cardiac rupture, highlighting potential therapeutic targets.

Related Concept Videos

Acute Coronary Syndrome II: Pathophysiology and Clinical Manifestations01:19

Acute Coronary Syndrome II: Pathophysiology and Clinical Manifestations

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...
Acute Coronary Syndrome III: Diagnostic Studies01:30

Acute Coronary Syndrome III: Diagnostic Studies

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...
Acute Coronary Syndrome I: Introduction01:30

Acute Coronary Syndrome I: Introduction

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...
Endocarditis II: Clinical Features of Infective Endocarditis01:25

Endocarditis II: Clinical Features of Infective Endocarditis

Endocarditis can present various clinical features depending on the causative organism and the patient's underlying health conditions. Initially, the clinical features of infective endocarditis develop gradually, presenting with nonspecific symptoms that can be easily mistaken for other illnesses.General SymptomsEarly symptoms of infective endocarditis are fever, chills, weakness, malaise, fatigue, and weight loss. These symptoms reflect the systemic nature of the infection and the body's...
Coronary Artery Disease III: Clinical Manifestations01:30

Coronary Artery Disease III: Clinical Manifestations

Coronary Artery Disease (CAD) is a primary health risk worldwide, leading to significant morbidity and mortality. The condition arises from the buildup of atherosclerotic plaques within the coronary arteries, resulting in diminished blood supply to the heart muscle.The clinical manifestations of CAD vary widely, from asymptomatic stages to severe, life-threatening conditions. Understanding these manifestations is crucial for early diagnosis and effective management.Angina Pectoris: The Warning...
Endocarditis I: Introduction01:25

Endocarditis I: Introduction

Introduction:Endocarditis is the infection of the endocardium, the inner lining of the heart and its valves. When the heart muscle is involved, the condition is termed myocarditis, while an infection of the outer lining is called pericarditis. Infective endocarditis (IE) primarily affects the endocardium, where pathogens adhere to the valves or lining, forming vegetation that can lead to severe complications. Infective endocarditis occurs when microorganisms, usually bacteria from other body...