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Related Concept Videos

Disturbances in Heart Rhythm01:28

Disturbances in Heart Rhythm

904
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...
904
Mechanism of Cardiac Arrhythmias01:28

Mechanism of Cardiac Arrhythmias

889
Arrhythmias are irregular heart rhythms occurring when the heart's electrical impulses become abnormal. These disturbances can lead to various symptoms, depending on their severity and the underlying cause. Some common factors contributing to arrhythmias include hypoxia, ischemia, electrolyte imbalances, excessive catecholamine exposure, drug toxicity, and muscle overstretching. Arrhythmias can be classified into two main types based on the rate and site of origin of abnormal heart rhythms.
889
ECG Interpretation of Arrhythmias I: Sinus Arrhythmias01:16

ECG Interpretation of Arrhythmias I: Sinus Arrhythmias

191
Arrhythmias are disturbances in the heart's rhythm that lead to abnormal heartbeats. These irregularities can originate from different parts of the heart and are classified based on their origin and nature.
Types of Arrhythmias
Sinus Node Arrhythmias
Sinus Bradycardia: Originating from the sinoatrial (SA) node, sinus bradycardia involves slower impulses, resulting in a heart rate of less than 60 beats per minute (bpm). Causes include sleep, vagal stimulation, beta-blockers, hypothyroidism,...
191
Pulse rhythm01:30

Pulse rhythm

763
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...
763
Decreased pulse rate01:14

Decreased pulse rate

534
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...
534
Electrophysiology of Normal Cardiac Rhythm01:19

Electrophysiology of Normal Cardiac Rhythm

2.1K
The normal cardiac rhythm is a synchronized electrical activity that facilitates the regular and coordinated contraction of the heart muscle. This process is essential for efficient blood circulation throughout the body. The fundamental elements involved in establishing and maintaining this rhythm include the unique electrical properties of cardiac muscle cells, the sinoatrial (SA) node's pacemaker function, the specialized conducting system, and the ionic mechanisms underlying each phase...
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Analyzing Long-Term Electrocardiography Recordings to Detect Arrhythmias in Mice
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Analyzing Long-Term Electrocardiography Recordings to Detect Arrhythmias in Mice

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[Arrhythmia].

Kengo Kusano1

  • 1Division of Arrhythmia, Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center Hospital.

No Shinkei Geka. Neurological Surgery
|December 2, 2024
PubMed
Summary

Atrial fibrillation (AF) treatment focuses on stroke prevention and symptom control. Advances in catheter ablation and minimally invasive surgery are improving outcomes and expanding treatment options for AF patients.

Area of Science:

  • Cardiology
  • Electrophysiology
  • Medical Technology

Background:

  • Atrial fibrillation (AF) management involves stroke prevention, rate/rhythm control, and non-pharmacological therapies.
  • Current treatment guidelines emphasize a comprehensive approach to AF care.
  • Non-pharmacological treatments, particularly catheter ablation, are increasingly vital for improving patient outcomes.

Purpose of the Study:

  • To review current treatment principles for atrial fibrillation (AF).
  • To highlight advancements in non-pharmacological AF therapies, including catheter ablation and surgical techniques.
  • To discuss the evolving landscape and future directions in AF management.

Main Methods:

  • Review of current atrial fibrillation (AF) treatment guidelines and emerging therapeutic modalities.

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Optimization of Transesophageal Atrial Pacing to Assess Atrial Fibrillation Susceptibility in Mice
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  • Analysis of technological advancements in catheter ablation (radiofrequency, balloon, pulsed-field) and surgical procedures (robotic, thoracoscopic, minimally invasive).
  • Discussion of evolving indications and strategies for AF ablation, particularly for persistent AF.

    • Main Results:

    • Catheter ablation has evolved significantly, with new technologies like pulsed-field ablation promising minimal complications.
    • Surgical interventions are becoming less invasive, including robotic and thoracoscopic approaches.
    • Ablation strategies for paroxysmal AF are established, while persistent AF management is a growing focus.

    Conclusions:

    • Non-pharmacological treatments, especially catheter ablation and minimally invasive surgery, are crucial for improving AF patient outcomes.
    • Ongoing technological advancements are enhancing the safety and efficacy of AF interventions.
    • Future research should focus on integrated heart team approaches and optimized treatment systems for complex AF cases.