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相关概念视频

Pulse rhythm01:30

Pulse rhythm

Pulse rhythm refers to the pattern of pulsations within specific intervals, offering valuable insights into the regularity or irregularity of the heart's beats as observed through the pattern of pulsation within specific intervals. A regular pulse exhibits a consistent heart rate with uniform waveforms and pulsation force, variations of which can be classified as normal, weak, or bounding.
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac muscle...
Disturbances in Heart Rhythm01:29

Disturbances in Heart Rhythm

Arrhythmia or dysrhythmia refers to an abnormal heart rhythm caused by a defect in the heart's conduction system. It can cause the heart to beat irregularly, too quickly, or too slowly, leading to symptoms like chest pain, shortness of breath, and fainting. Factors such as stress, caffeine, alcohol, nicotine, cocaine, certain drugs, congenital defects, diseases, and electrolyte abnormalities can trigger arrhythmias.
Arrhythmias are categorized by their speed, rhythm, and origin. A slow heart...
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...
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...
Heart Failure IV: Classification and Diagnostic Evaluation01:30

Heart Failure IV: Classification and Diagnostic Evaluation

Heart failure can be classified in various ways, with the most common classifications based on physical activity limitations, disease progression, severity, and treatment strategies.The Functional Classification of Heart Failure divides patients into four categories based on physical activity limitation due to symptom burden.Class I: Patients in this class have cardiac disease but no physical activity limitations. Ordinary activities like walking, climbing stairs, or routine tasks do not cause...

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相关实验视频

Updated: Jul 16, 2026

A Research Method For Detecting Transient Myocardial Ischemia In Patients With Suspected Acute Coronary Syndrome Using Continuous ST-segment Analysis
18:11

A Research Method For Detecting Transient Myocardial Ischemia In Patients With Suspected Acute Coronary Syndrome Using Continuous ST-segment Analysis

Published on: December 28, 2012

患有急性缺血综合征的患者有或没有ST段升高的心脏性休克.

D R Holmes1, P B Berger, J S Hochman

  • 1Mayo Clinic and Foundation, Rochester, MN 55905, USA. dholmes@mayo.edu

Circulation
|November 16, 1999
PubMed
概括

在急性缺血综合征中,即使没有ST段升高,心脏性休克也可能发生. 虽然发病率和患者概况不同,但ST升高和非ST升高的心肌梗塞患者的死亡率仍然很高,他们经历了冲击.

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Postconditioning with Lactate-enriched Blood for Cardioprotection in ST-segment Elevation Myocardial Infarction
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Postconditioning with Lactate-enriched Blood for Cardioprotection in ST-segment Elevation Myocardial Infarction

Published on: May 28, 2019

Evaluation of Hydration Status by Bioelectrical Impedance Vector Analysis in Patients with Ischemic Heart Disease Undergoing Exercise Stress Test
10:21

Evaluation of Hydration Status by Bioelectrical Impedance Vector Analysis in Patients with Ischemic Heart Disease Undergoing Exercise Stress Test

Published on: September 22, 2023

相关实验视频

Last Updated: Jul 16, 2026

A Research Method For Detecting Transient Myocardial Ischemia In Patients With Suspected Acute Coronary Syndrome Using Continuous ST-segment Analysis
18:11

A Research Method For Detecting Transient Myocardial Ischemia In Patients With Suspected Acute Coronary Syndrome Using Continuous ST-segment Analysis

Published on: December 28, 2012

Postconditioning with Lactate-enriched Blood for Cardioprotection in ST-segment Elevation Myocardial Infarction
05:26

Postconditioning with Lactate-enriched Blood for Cardioprotection in ST-segment Elevation Myocardial Infarction

Published on: May 28, 2019

Evaluation of Hydration Status by Bioelectrical Impedance Vector Analysis in Patients with Ischemic Heart Disease Undergoing Exercise Stress Test
10:21

Evaluation of Hydration Status by Bioelectrical Impedance Vector Analysis in Patients with Ischemic Heart Disease Undergoing Exercise Stress Test

Published on: September 22, 2023

科学领域:

  • 心脏病学 心脏病学
  • 急性冠状动脉综合征是什么
  • 心肌梗塞的心脏病发作

背景情况:

  • 心脏性休克通常与ST段升高心肌梗塞有关.
  • 关于非ST段升高心肌梗塞 (NSTEMI) 的冲击发生率和结果的数据有限.
  • 全球使用策略打开封闭的冠状动脉 (GUSTO) -IIb试验提供了一个大数据集来调查这一点.

研究的目的:

  • 确定有或没有ST段升高的患者心脏性休克的发生率和结果.
  • 为了比较这两个群体之间的心血管性休克的特征,时间,临床过程和血管学发现.

主要方法:

  • 分析了来自GUSTO-IIb试验的12,084名患者,这些患者最初没有出现心脏性休克.
  • 基于在入学电心图 (ECG) 上的ST段升高的患者分类.
  • 在ST-elevation和非ST-elevation组之间比较冲击发生率,发育时间,基线特征和死亡率.

主要成果:

  • 心脏性休克发生在ST升高患者的4.2%,而非ST升高患者的2.5% (OR0.581,P<0.001).
  • 在没有ST升高的患者中,冲击发生较晚,这些患者年龄较大,患有更多的糖尿病和三血管疾病,但TIMI级0流量较少.
  • 两组患者的死亡率都很高:ST升高患者为63%,非ST升高患者为73%.

结论:

  • 心脏性休克是急性缺血综合征的重要并发症,无论ST段的升高.
  • 在ST升高和非ST升高心脏病性休克之间存在明显的发病率,患者资料,时间和血管学发现的差异.
  • 心脏性休克的死亡率在ST升高和非ST升高心肌梗塞中相对较高.