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Acute Coronary Syndrome II: Pathophysiology and Clinical Manifestations01:19

Acute Coronary Syndrome II: Pathophysiology and Clinical Manifestations

308
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...
308
Acute Coronary Syndrome III: Diagnostic Studies01:30

Acute Coronary Syndrome III: Diagnostic Studies

162
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...
162
Coronary Artery Disease III: Clinical Manifestations01:30

Coronary Artery Disease III: Clinical Manifestations

263
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...
263
Acute Coronary Syndrome I: Introduction01:30

Acute Coronary Syndrome I: Introduction

637
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...
637
Ischemic Heart Disease: Overview01:17

Ischemic Heart Disease: Overview

2.7K
Ischemic heart disease occurs when the heart's blood supply dwindles, causing an ominous lack of oxygen and nutrients. This deficiency, stemming from reduced or obstructed blood flow, spells danger, leading to heart muscle damage and dysfunction.
Atherosclerosis, the primary malefactor, orchestrates this dangerous condition. It manifests as the accumulation of fatty deposits, akin to insidious plaques, within arterial walls. As time elapses, these plaques metamorphose, hardening and...
2.7K
Pulmonary Embolism II: Diagnostic Studies and Interprofessional Care01:29

Pulmonary Embolism II: Diagnostic Studies and Interprofessional Care

238
Diagnosing Pulmonary EmbolismDiagnosing pulmonary embolism (PE) involves clinical assessment and advanced imaging tests. The preferred diagnostic tool is the spiral (helical) CT scan or CT angiography (CTA), which uses intravenous contrast media to visualize the pulmonary vasculature and identify emboli.A ventilation-perfusion (V/Q) scan is an alternative for patients unable to receive contrast media. This scan includes both perfusion and ventilation scanning. Perfusion scanning involves...
238

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Related Experiment Video

Updated: Dec 31, 2025

Author Spotlight: Enhancing Coronary Artery Revascularization
05:25

Author Spotlight: Enhancing Coronary Artery Revascularization

Published on: September 15, 2023

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Spotlight on comorbidities in STEMI patients.

Raphael Romano Bruno1, Malte Kelm1, Christian Jung1

  • 1Division of Cardiology, Pulmonology, and Vascular Medicine Medical Faculty University Hospital Düsseldorf Dusseldorf Germany.

Endocrinology, Diabetes & Metabolism
|January 11, 2020
PubMed
Summary

Mortality from myocardial infarction is decreasing. However, comorbidities like hyperglycemia increase risks. Continuous insulin infusion therapy in STEMI patients unexpectedly raised mortality risks significantly.

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Area of Science:

  • Cardiology
  • Endocrinology
  • Critical Care Medicine

Background:

  • Myocardial infarction (MI) mortality is at a 20-year low.
  • Comorbidities like anemia, renal failure, and hyperglycemia are emerging as critical risk modifiers in acute MI.
  • Stress hyperglycemia is common in ST-elevation myocardial infarction (STEMI).

Discussion:

  • Continuous insulin infusion therapy (CIIT) in STEMI patients was investigated for its impact on mortality.
  • The study examined in-hospital and 1-year mortality rates associated with CIIT in STEMI.

Key Insights:

  • CIIT was associated with a >threefold increase in in-hospital mortality.
  • CIIT showed a >twofold increase in 1-year mortality for STEMI patients.
  • These findings highlight a potential adverse effect of CIIT in this patient population.

Outlook:

  • Further research is needed to understand the mechanisms behind CIIT's adverse effects in STEMI.
  • Investigating alternative glycemic control strategies for STEMI patients with stress hyperglycemia is crucial.
  • Identifying safer interventions for managing comorbidities in acute MI is a priority.