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Disturbances in Heart Rhythm

Disturbances in Heart Rhythm

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...

Dysrhythmias VI: Management of Dysrhythmias

Dysrhythmias VI: Management of Dysrhythmias

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...

Mechanism of Cardiac Arrhythmias

Mechanism of Cardiac Arrhythmias

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.

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Updated: May 18, 2026

Remote Magnetic Navigation for Accurate, Real-time Catheter Positioning and Ablation in Cardiac Electrophysiology Procedures

Remote Magnetic Navigation for Accurate, Real-time Catheter Positioning and Ablation in Cardiac Electrophysiology Procedures

Published on: April 21, 2013

Remote magnetic navigation and arrhythmia ablation.

Antoine Da Costa¹, Patrick Lafond, Cécile Romeyer-Bouchard

¹Service de cardiologie, hôpital Nord, université Jean-Monnet, CHU de Saint-Étienne, 42055 Saint-Étienne cedex 2, France. dakosta@aol.com

Archives of Cardiovascular Diseases

|September 11, 2012

Summary

Robotic magnetic navigation offers a safer, more effective alternative for treating complex arrhythmias like atrial fibrillation, reducing procedure risks and X-ray exposure compared to traditional radiofrequency ablation.

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Robotic Ablation of Atrial Fibrillation

Robotic Ablation of Atrial Fibrillation

Published on: May 29, 2015

Area of Science:

Cardiology
Medical Technology
Electrophysiology

Background:

Radiofrequency (RF) ablation is a primary treatment for cardiac arrhythmias, particularly atrial fibrillation, offering a favorable benefit/risk profile over antiarrhythmic drugs.
Complex arrhythmias necessitate lengthy procedures, increasing risks like radiation exposure and complications such as cardiac tamponade.

Purpose of the Study:

To evaluate robotic magnetic navigation (RMN) as an advanced technique for treating complex cardiac arrhythmias.
To compare the safety and efficacy of RMN against traditional radiofrequency ablation methods.

Main Methods:

Utilized robotic magnetic navigation systems for catheter manipulation during arrhythmia ablation procedures.
Focused on complex cases, including persistent atrial fibrillation, to assess RMN's performance.

Main Results:

Robotic magnetic navigation demonstrated high efficacy and reliability in treating complex arrhythmias.
Significant reductions in X-ray exposure for patients and operators were observed.
The technique exhibited a very low risk of serious complications, such as perforation.

Conclusions:

Robotic magnetic navigation is a highly suitable technique for complex arrhythmia treatment, offering improved safety and reduced radiation exposure.
Ongoing technological advancements are expected to further enhance procedure efficiency and outcomes, positioning RMN as a leading arrhythmia treatment modality.