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Acute Coronary Syndrome II: Pathophysiology and Clinical Manifestations01:19

Acute Coronary Syndrome II: Pathophysiology and Clinical Manifestations

489
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...
489
Acute Coronary Syndrome III: Diagnostic Studies01:30

Acute Coronary Syndrome III: Diagnostic Studies

316
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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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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Coronary Artery Disease II: Pathophysiology01:26

Coronary Artery Disease II: Pathophysiology

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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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Ischemic Heart Disease: Overview01:17

Ischemic Heart Disease: Overview

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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...
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Updated: Feb 22, 2026

Myocardial Infarction and Functional Outcome Assessment in Pigs
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Published on: April 25, 2014

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新しく改変された北部の閉塞性心筋梗塞のパターン.

Honglin Ni1, Xiao Wan1, Ting Shi1

  • 1Department of Electrocardiology, Affiliated Hospital of Jiaxing University, Jiaxing 314001, China.

Journal of electrocardiology
|February 20, 2026
PubMed
まとめ

非典型的閉塞性心筋梗塞 (OMI) を特定することは困難です. この研究では,北部のOMIに対するEKG基準を改定し,STセグメントの上昇をaVR/aVLで利用し,II,III,aVFで相互低下を提案しています.

キーワード:
急性脳出血が起こりました.左側主動脈冠動脈疾患について多血管性疾患は多血管性疾患である.閉塞性心筋梗塞 閉塞性心筋梗塞 閉塞性心筋梗塞 閉塞性心筋梗塞aVRとaVLのリードにおけるSTセグメントの高さ.

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In Vivo Quantitative Assessment of Myocardial Structure, Function, Perfusion and Viability Using Cardiac Micro-computed Tomography
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関連する実験動画

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科学分野:

  • 心臓病学 心臓病学
  • 医療診断 医療診断
  • エレクトロカーディオグラフィーです.

背景:

  • 非典型的閉塞性心筋梗塞 (OMI) は,臨床実務において診断上の課題を提示する.
  • 最近提案された北極閉塞性心筋梗塞 (北極OMI) は,さらなる定義が必要である.
  • 心電図 (ECG) の発見は,心筋梗塞の診断に極めて重要です.

研究 の 目的:

  • 急性冠動脈症候群 (ACS) の北方OMIの潜在的なEKGの表れを分析する.
  • 北部OMI.で関連する冠動脈血管タイプを調査する.
  • 北部OMI.の診断基準を変更することを提案する.

主な方法:

  • STセグメント上昇 (ST-segment elevation, STE) を有する9人の患者の遡及的分析により,aVRとaVLを導き出しました.
  • 典型的なSTセグメント上昇閉塞性心筋梗塞 (STE-OMI) ECG基準を有する患者の除外.
  • 冠動脈動脈造影は,冠動脈の病変の原因を特定するために行われます.

主要な成果:

  • 9人の患者のうち8人はOMIと診断され,単体または多管の病変が関与しました.
  • 7人の患者はタイムリーな冠動脈介入を受け,1人は保守的な治療を選択した.
  • 1例は急性脳幹出血によるものであった.

結論:

  • 北部OMIの現在の診断モデルは限られている可能性があります.
  • 提案された改定基準: aVRとaVLにおけるSTEと,リードII,III,aVFにおける相互のSTセグメント低圧 (STD)
  • これらの発見は,非典型OMIの識別を改善する可能性があります.