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相关概念视频

Exercise Stress Test01:26

Exercise Stress Test

236
Introduction
Exercise stress testing, commonly known as a treadmill test, is a noninvasive procedure used to evaluate cardiovascular function and diagnose heart conditions.
Definition
An exercise stress test measures the heart's response to exertion using a treadmill or stationary bicycle. Chest electrodes record the heart's electrical activity through an ECG, and blood pressure is monitored regularly.
Purposes
236
Pathophysiology of Heart Failure01:17

Pathophysiology of Heart Failure

1.6K
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...
1.6K
Heart Failure Drugs: Inhibitors of Renin-Angiotensin System01:26

Heart Failure Drugs: Inhibitors of Renin-Angiotensin System

436
The activation of the sympathetic nervous system and the renin-angiotensin-aldosterone system (RAAS) contributes to cardiac remodeling, and inhibiting the RAAS is a pharmacological target in heart failure management. As a result, neurohumoral modulation is a crucial treatment principle for managing heart failure. This approach involves using medications like ACE inhibitors (ACEIs), angiotensin receptor blockers (ARBs), β-blockers, mineralocorticoid receptor antagonists (MRAs), and neutral...
436
Heart Failure Drugs: β-Blockers01:22

Heart Failure Drugs: β-Blockers

344
β-adrenergic antagonists, commonly known as β-blockers, block the effects of sympathetic neurotransmitters such as noradrenaline (NA) and adrenaline (ADR). They have several beneficial effects in heart failure treatment. They reduce heart rate, the force of contraction, and cardiac muscle relaxation. They also slow the atrial-ventricular conduction rate and raise the threshold for arrhythmias. The concentration of β-blockers determines their effects on bronchodilation,...
344
Increased pulse rate01:17

Increased pulse rate

673
Tachycardia is a condition marked by an abnormally fast or irregular heart rate, surpassing the typical resting rate. In adults, tachycardia is characterized by a pulse rate ranging from 100 to 180 beats per minute. The increased heart rate can result in inadequate blood flow to various body parts, ultimately diminishing the oxygen supply to organs and tissues.
Many factors can elevate the risk of developing tachycardia. These include advanced age, a family history of arrhythmias, and an...
673
Imaging Studies for Cardiovascular System I:Echocardiography01:17

Imaging Studies for Cardiovascular System I:Echocardiography

340
Cardiac imaging studies encompass a wide range of noninvasive and minimally invasive techniques designed to visualize the heart's structure and function in detail. One such technique is echocardiography, which uses high-frequency ultrasound waves to produce detailed images of the heart, known as echocardiograms.
Indications: Echocardiography is utilized to diagnose heart failure, valve disorders, and myocardial infarction. It also assesses cardiac structures' size, shape, and motion,...
340

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相关实验视频

Updated: Jul 10, 2025

Implantation of the Syncardia Total Artificial Heart
16:11

Implantation of the Syncardia Total Artificial Heart

Published on: July 18, 2014

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你的心脏功能正常化了-在TRED-HF之后接下来会发生什么?

Alexandros Kasiakogias1, Aaraby Ragavan1,2, Brian P Halliday3,4

  • 1Inherited Cardiac Conditions Care Group, Royal Brompton and Harefield Hospitals, Part of Guy's and St Thomas' NHS Foundation Trust, London, UK.

Current heart failure reports
|November 24, 2023
PubMed
概括
此摘要是机器生成的。

心力衰竭治疗是增加喷射分数的正常化. 缓解,而不是完全康复,是扩张性心肌病患者的典型特征,强调需要持续的管理策略.

关键词:
扩展性心肌病变异症 扩展性心肌病变异症药物戒断 药物戒断是什么心脏衰竭是因为心脏衰竭.改进了弹射分数的改善.恢复的喷射分数.

更多相关视频

Benefits of Cardiac Resynchronization Therapy in an Asynchronous Heart Failure Model Induced by Left Bundle Branch Ablation and Rapid Pacing
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Benefits of Cardiac Resynchronization Therapy in an Asynchronous Heart Failure Model Induced by Left Bundle Branch Ablation and Rapid Pacing

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Implantation of Total Artificial Heart in Congenital Heart Disease
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相关实验视频

Last Updated: Jul 10, 2025

Implantation of the Syncardia Total Artificial Heart
16:11

Implantation of the Syncardia Total Artificial Heart

Published on: July 18, 2014

35.3K
Benefits of Cardiac Resynchronization Therapy in an Asynchronous Heart Failure Model Induced by Left Bundle Branch Ablation and Rapid Pacing
12:45

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Implantation of Total Artificial Heart in Congenital Heart Disease
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Implantation of Total Artificial Heart in Congenital Heart Disease

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科学领域:

  • 心脏病学 心脏病学
  • 心脏衰竭研究研究
  • 药理学 药理学是指药理学的学科.

背景情况:

  • 当代疾病修饰性心力衰竭疗法正在改善喷射分数正常化率.
  • TRED-HF试验表明,心力衰竭缓解在扩张性心肌病症的响应患者中比完全康复更为常见.
  • 越来越多的异常射出分数患者群体面临着独特的管理挑战.

研究的目的:

  • 审查患者的关键管理策略,以正常化的喷射分数.
  • 识别这种患者群体的护理方面的知识差距.
  • 在此背景下,专注于非缺血性扩张性心肌病.

主要方法:

  • 关于心力衰竭治疗和结果的当前文献的审查.
  • 对TRED-HF等试验结果的分析.
  • 讨论先进的诊断和治疗方法.

主要成果:

  • 在患者中存在显著的异质性,正常化的射出分数,受病因和遗传易感性的影响.
  • 目前正在进行的病理生理过程可以使用先进的心脏成像,生物标志物,多omics和机器学习来阐明.
  • 如果没有堵塞,可以取消利尿剂,但继续修改疾病的治疗通常是维持缓解的必要.

结论:

  • 了解患有正常射出分数的患者的潜在机制对于预测复发和个性化治疗至关重要.
  • 需要全面的表征来识别多因素疾病表型.
  • 未来的个性化治疗方法将由正在进行的临床试验来告知.