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Related Concept Videos

Dysrhythmias III: Characteristics of Dysrhythmias01:29

Dysrhythmias III: Characteristics of Dysrhythmias

206
Dysrhythmias, also known as arrhythmias, are irregular heart rhythms that result from abnormal electrical activity in the heart, affecting its ability to circulate blood efficiently. Tachyarrhythmias, a subset of dysrhythmias, are characterized by abnormally fast heart rates exceeding 100 beats per minute. Here are some types of tachyarrhythmias with their distinct ECG features:Sinus Tachycardia:Sinus tachycardia presents a regular heart rhythm with an increased rate of 101-180 beats per...
206
Disturbances in Heart Rhythm01:29

Disturbances in Heart Rhythm

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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...
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ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias01:25

ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias

225
Arrhythmia is a condition characterized by an irregular heart rhythm, with ECG changes that differ based on its origin and nature. The types of arrhythmias discussed below include atrial, junctional, and ventricular arrhythmias.Atrial ArrhythmiasPremature Atrial Complexes (PACs): PACs are early atrial beats caused by stress, caffeine, alcohol, electrolyte imbalances, hypoxia, hyperthyroidism, or certain medications (e.g., bronchodilators and decongestants). The ECG shows early P waves with an...
225
Dysrhythmias II: Classification of Tachyarrhythmias01:28

Dysrhythmias II: Classification of Tachyarrhythmias

273
Tachyarrhythmias are a type of dysrhythmia where the heart rate exceeds 100 beats per minute. Here are some common types of tachyarrhythmias:Sinus TachycardiaSinus tachycardia originates from increased impulses from the sinus node, leading to an elevated heart rate. It is often triggered by stress, fever, or exercise.Patients may experience palpitations, a sensation of a racing heart, dizziness, and chest discomfort.Causes and Risk Factors: Common causes include physical exertion, emotional...
273
Dysrhythmias IV: Characteristics of Bradyarrhythmias01:18

Dysrhythmias IV: Characteristics of Bradyarrhythmias

259
Bradyarrhythmias are cardiac rhythm disorders characterized by a slower-than-normal heart rate, typically defined as fewer than 60 beats per minute. Some of which are discussed here:Sinus BradycardiaSinus bradycardia presents a heart rate lower than 60 beats per minute, with a regular rhythm originating from the SA node. The ECG typically shows normal P waves preceding each QRS complex, a normal PR interval (0.12 to 0.20 seconds), and a normal QRS duration (0.06 to 0.10 seconds).First-Degree AV...
259
Dysrhythmias VI: Management of Dysrhythmias01:25

Dysrhythmias VI: Management of Dysrhythmias

186
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...
186

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Interactions of blood biomolecules with early rhythm control in atrial fibrillation patients: Exploratory analysis of the EAST-AFNET 4 Biomolecule Study.

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Analgosedation for catheter ablation in deep sedation: comparison between cryoballoon and pulsed field ablation.

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Related Experiment Video

Updated: Oct 31, 2025

Estimating Bilateral Atrial Function by Cardiovascular Magnetic Resonance Feature Tracking in Patients with Paroxysmal Atrial Fibrillation
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Estimating Bilateral Atrial Function by Cardiovascular Magnetic Resonance Feature Tracking in Patients with Paroxysmal Atrial Fibrillation

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[Atrial fibrillation].

Renate B Schnabel, Andreas Rillig, Paulus Kirchhof1

  • 1Klinik und Poliklinik für Kardiologie, Universitäres Herz- und Gefäßzentrum UKE Hamburg, Martinistraße 52, 20246, Hamburg, Deutschland. p.kirchhof@uke.de.

Der Internist
|June 29, 2021
PubMed
Summary
This summary is machine-generated.

Atrial fibrillation management can reduce severe risks like stroke. Early rhythm control, including catheter ablation, improves quality of life compared to antiarrhythmic drugs.

Keywords:
Antiarrhythmic therapyAnticoagulantAtrial fibrillationCatheter ablationStroke

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Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation
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Area of Science:

  • Cardiology
  • Electrophysiology

Background:

  • Atrial fibrillation is a common arrhythmia with serious consequences including stroke, cardiovascular death, and heart failure.
  • Effective management involves anticoagulation, treating comorbidities, and early rhythm control.

Purpose of the Study:

  • To evaluate the benefits of early rhythm-preserving treatment in atrial fibrillation patients.
  • To compare catheter ablation with antiarrhythmic agents for rhythm control and quality of life.

Main Methods:

  • Review of current treatment strategies for atrial fibrillation.
  • Comparison of outcomes between catheter ablation and antiarrhythmic drug therapy.

Main Results:

  • Catheter ablation demonstrates superior preservation of sinus rhythm compared to antiarrhythmic agents.
  • Symptomatic atrial fibrillation patients experience improved quality of life with catheter ablation.

Conclusions:

  • Early rhythm-maintaining treatment is crucial for managing atrial fibrillation.
  • Catheter ablation should be considered in the early treatment plan for symptomatic atrial fibrillation patients due to better rhythm and quality of life outcomes.