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相关概念视频

Pathophysiology of Heart Failure01:17

Pathophysiology of Heart Failure

Heart failure (HF) is a progressive syndrome involving ventricles that leads to inadequate cardiac output. It can be classified based on location and output or ejection fraction. Ejection fraction (EF) is an essential measurement in the diagnosis and surveillance of HF. Reduced EF corresponds to systolic heart failure (HFrEF). However, HF with preserved ejection fraction (HFpEF) is becoming increasingly prevalent. Also known as diastolic HF, this form of HF is related to aging. The...
Heart Failure I: Introduction01:27

Heart Failure I: Introduction

Heart failure refers to a clinical syndrome caused by structural or functional cardiac disorders that prevent the heart from pumping an adequate amount of blood to meet the body's metabolic needs. This condition often arises from myocardial infarction or ischemia, leading to decreased cardiac output, reduced tissue perfusion, impaired gas exchange, fluid volume imbalance, and decreased functional ability.Heart failure can result from disruptions in the mechanisms that regulate cardiac output...
Heart Failure II: Pathophysiology01:29

Heart Failure II: Pathophysiology

Systolic Heart Failure and Compensatory MechanismsSystolic heart failure (also termed HFrEF, Heart Failure with Reduced Ejection Fraction) is the most prevalent type of heart filure. It results in a decreased volume of blood being pumped from the ventricle. The aortic arch and carotid sinuses have baroreceptors that detect reduced blood pressure, triggering the sympathetic nervous system (SNS) to release epinephrine and norepinephrine. Initially, this response aims to boost heart rate and...
Heart Failure III: Clinical Manifestations01:26

Heart Failure III: Clinical Manifestations

Heart failure (HF) manifests primarily as dyspnea, fatigue, and fluid retention, resulting in peripheral and pulmonary edema. Symptoms may vary depending on which ventricle is more affected, left or right.Left-Sided Heart FailureAlso known as left ventricular failure, this condition results from the left ventricle's inability to fill or eject sufficient blood into the systemic circulation. It leads to pulmonary congestion, which occurs when the left ventricle fails to eject blood effectively...
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...
Heart Failure VII: Nursing Interventions01:30

Heart Failure VII: Nursing Interventions

The first step in nursing management of a patient with heart failure involves thoroughly assessing the patient's medical history.Subjective Data: Obtain the patient's medical history of coronary artery disease, hypertension, myocardial infarction, and symptoms like dyspnea, orthopnea, and paroxysmal nocturnal dyspnea.Objective Data: Conduct a physical examination to identify findings such as jugular vein distention, pulmonary crackles, tachycardia, murmurs, peripheral edema, and vital signs,...

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相关实验视频

Updated: Jul 10, 2026

Percutaneous Contrast Echocardiography-guided Intramyocardial Injection and Cell Delivery in a Large Preclinical Model
14:24

Percutaneous Contrast Echocardiography-guided Intramyocardial Injection and Cell Delivery in a Large Preclinical Model

Published on: January 21, 2018

在一个明确的老年人群中,心力衰竭的发病率和存活率的变化,1970-1974年和1990-1994年.

William H Barker1, John P Mullooly, William Getchell

  • 1University of Rochester School of Medicine, Rochester, NY, USA. William_Barker@URMC.Rochester.edu

Circulation
|February 8, 2006
PubMed
概括
此摘要是机器生成的。

1970年代至1990年代,老年人心力衰竭 (HF) 的发病率和存活率在老年人中增加. 这种心力衰竭 (HF) 的增加在男性中更为明显,这表明随着病例增加,结果有所改善.

更多相关视频

Post-Myocardial Infarction Heart Failure in Closed-chest Coronary Occlusion/Reperfusion Model in Göttingen Minipigs and Landrace Pigs
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Post-Myocardial Infarction Heart Failure in Closed-chest Coronary Occlusion/Reperfusion Model in Göttingen Minipigs and Landrace Pigs

Published on: April 17, 2021

Cutoff Value of Phase Angle by Bioelectrical Impedance Analysis at Admission as a Prognostic Factor in Patients with Acute Heart Failure
05:16

Cutoff Value of Phase Angle by Bioelectrical Impedance Analysis at Admission as a Prognostic Factor in Patients with Acute Heart Failure

Published on: June 10, 2025

相关实验视频

Last Updated: Jul 10, 2026

Percutaneous Contrast Echocardiography-guided Intramyocardial Injection and Cell Delivery in a Large Preclinical Model
14:24

Percutaneous Contrast Echocardiography-guided Intramyocardial Injection and Cell Delivery in a Large Preclinical Model

Published on: January 21, 2018

Post-Myocardial Infarction Heart Failure in Closed-chest Coronary Occlusion/Reperfusion Model in Göttingen Minipigs and Landrace Pigs
14:35

Post-Myocardial Infarction Heart Failure in Closed-chest Coronary Occlusion/Reperfusion Model in Göttingen Minipigs and Landrace Pigs

Published on: April 17, 2021

Cutoff Value of Phase Angle by Bioelectrical Impedance Analysis at Admission as a Prognostic Factor in Patients with Acute Heart Failure
05:16

Cutoff Value of Phase Angle by Bioelectrical Impedance Analysis at Admission as a Prognostic Factor in Patients with Acute Heart Failure

Published on: June 10, 2025

科学领域:

  • 老年学是指老年学的学科.
  • 心血管医学 心血管医学
  • 流行病学 流行病学

背景情况:

  • 在老年人中观察到心力衰竭 (HF) 死亡率,住院和患病率的流行性增加.
  • 不确定这一趋势是否反映出发病率增加或生存率改善.

研究的目的:

  • 在两个不同的时期之间调查65岁及以上个体心力衰竭 (HF) 发病率和存活率的变化.
  • 为了比较特定年龄和年龄调整的发病率,死亡率和存活率随着时间的推移.

主要方法:

  • 追溯队列研究,比较了1970-1974年和1990-1994年的HF病例.
  • 利用弗雷明汉临床标准在一个大,明确的群体中识别HF病例.
  • 采用考克斯的比例风险模型来分析并发症和药物的对生存的影响.

主要成果:

  • 在这两个时期之间,观察到HF发病率的年龄调整后增加了14%.
  • 在老年人和男性中,发病率的增加更为明显.
  • 在调整年龄和并发症后,男性的五年死亡风险比率下降了33%,女性下降了24%.

结论:

  • 从20世纪70年代到90年代,老年人心力衰竭 (HF) 的增加归因于发病率增加和生存率提高.
  • 与心力衰竭 (HF) 相关的发病率增加和生存率改善在男性中更为显著.