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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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Coronary Artery Disease II: Pathophysiology01:26

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Coronary Artery Disease (CAD) originates from a series of events that impair the function of coronary arteries, the blood vessels responsible for delivering oxygen-rich blood to the heart muscle. The pathophysiology of CAD is closely linked to atherosclerosis, a chronic inflammatory and lipid-driven condition affecting the vascular endothelium.1. Endothelial DamageThe process begins with damage to the vascular endothelium, which serves as a protective barrier between the blood and the vessel...
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Postconditioning with Lactate-enriched Blood for Cardioprotection in ST-segment Elevation Myocardial Infarction
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[Exercise-induced coronary thrombosis].

A Sghaier1, S Milouchi1, L Ghannem2

  • 1Service universitaire de cardiologie, hôpital Habib Bourguiba, Médenine, Tunisie.

Annales De Cardiologie Et D'Angeiologie
|November 4, 2017
PubMed
Summary
This summary is machine-generated.

Heavy exertion can trigger myocardial infarction (MI), particularly in inactive men with risk factors. Despite this risk, regular exercise improves overall cardiovascular health and reduces mortality.

Keywords:
Contraintes hémodynamiquesEffort physiqueHemodynamic stressInfarctus du myocardeMyocardial infarctionPhysical effortPlaque ruptureRupture de plaqueThrombus

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Area of Science:

  • Cardiology
  • Exercise Physiology

Background:

  • Cardiac events triggered by heavy exertion have been historically documented.
  • Myocardial infarction (MI) following physical exertion accounts for approximately 4% of all MIs.

Purpose of the Study:

  • To investigate the characteristics and pathophysiology of exercise-induced myocardial infarction.
  • To highlight the association between intense physical activity, risk factors, and acute coronary events.

Main Methods:

  • Review of historical accounts and clinical data on exercise-triggered cardiac events.
  • Analysis of patient demographics, exertion levels, and clinical severity markers (ECG, troponin, GRACE score).
  • Examination of the pathophysiological mechanisms involving atherosclerotic plaque rupture and thrombus formation.

Main Results:

  • Exercise-induced MI is more prevalent in men and younger individuals, often occurring during intense efforts in previously inactive people with multiple risk factors.
  • These events tend to be more severe, indicated by increased necrosis (Q waves), higher troponin levels, and elevated GRACE scores.
  • Pathophysiology involves hemodynamic stress on coronary arteries, promoting plaque rupture and thrombus formation, exacerbated by biochemical and rheological changes.

Conclusions:

  • While heavy exertion can precipitate myocardial infarction, especially in at-risk individuals, regular physical activity remains crucial for improving quality of life and reducing cardiovascular morbidity and mortality.