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相关概念视频

Pulse rhythm01:30

Pulse rhythm

937
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...
937
Dysrhythmias VI: Management of Dysrhythmias01:25

Dysrhythmias VI: Management of Dysrhythmias

114
Dysrhythmia management involves a multifaceted approach, incorporating pharmacological treatments, medical procedures, surgical interventions, lifestyle modifications, and patient education.Pharmacological ManagementAntiarrhythmic Drugs:Class I (Sodium Channel Blockers): This class includes quinidine and procainamide, which reduce the speed of impulse conduction in the heart, stabilize the cardiac membrane, and control arrhythmias. Quinidine and procainamide are Class IA agents that prolong the...
114
Decreased pulse rate01:14

Decreased pulse rate

626
Bradycardia is a medical condition in which the heart rate is slower than normal. It occurs when the heart's natural pacemaker, the sinus node, generates slower electrical impulses than the standard rhythm. In adults, bradycardia is diagnosed when the pulse rate falls below 60 beats per minute, indicating a deviation from the normal heart rate range.
There are specific risk factors that can elevate the likelihood of developing bradycardia. Advanced age is a significant factor, with...
626
Disturbances in Heart Rhythm01:29

Disturbances in Heart Rhythm

1.3K
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...
1.3K
Cardiomyopathy V: Interprofessional Care01:29

Cardiomyopathy V: Interprofessional Care

41
Managing cardiomyopathy involves addressing underlying or precipitating causes, treating heart failure with medications, and implementing dietary changes and a balanced exercise and rest regimen.Lifestyle ModificationsCardiomyopathy patients should adopt a low-sodium diet to reduce fluid retention and manage heart failure. A personalized exercise and rest plan helps maintain physical fitness without overstraining the heart. Avoiding alcohol and tobacco is essential to prevent further damage to...
41
Conduction System of the Heart01:19

Conduction System of the Heart

10.0K
Autorhythmicity is a term that refers to the heart's inherent ability to generate electrical signals and instigate muscle contractions. This self-regulating conduction system within the heart consists of two key components: the pacemaker cells and specialized conducting cells.
The pacemaker cells are located in two primary nodes: the sinoatrial (SA) node and the atrioventricular (AV) node. The SA node pacemaker cells can autonomously depolarize, triggering an action potential that leads to the...
10.0K

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相关实验视频

Updated: Sep 18, 2025

Translational Rabbit Model of Chronic Cardiac Pacing
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心脏起器是一种起器.

Omar M Aldaas1, Anne-Sophie Roberge-Lacharite1, Ulrika Birgersdotter-Green1

  • 1Division of Cardiology, University of California, San Diego, La Jolla.

NEJM evidence
|June 24, 2025
PubMed
概括

本综述涵盖了心脏起器的基础知识,使用方法和治疗慢心律 (心律失常症) 的类型. 它还探讨了心力衰竭中的起器,新技术和现有挑战.

科学领域:

  • 心脏病学 心脏病学
  • 生物医学工程 生物医学工程

背景情况:

  • 布拉迪心律失常症需要心脏起器植入,以保持血液动力学稳定.
  • 心脏起器是控制慢心律的重要设备.

研究的目的:

  • 为了提供关于心脏起器技术的全面概述.
  • 讨论心脏节拍的当前应用和未来方向.

主要方法:

  • 关于心脏起器基本原理,适用情况和设备分类的文献综述.
  • 对心脏起器在心力衰竭管理中的作用的分析.
  • 探索心脏节拍中的新兴进展和局限性.

主要成果:

  • 心脏起器对于管理各种类型的肌节律不良至关重要.
  • 不同类型的起器满足患者的特定需求.
  • 心脏起器在改善心力衰竭患者的治疗结果方面发挥着重要作用.

结论:

  • 心脏起器技术不断发展,为患者提供了更好的治疗结果.
  • 了解心脏起器的基本原理,应用和局限性对于临床医生来说至关重要.
  • 未来的进展有望进一步提升心脏节拍疗法.

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