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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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Dysrhythmias VI: Management of Dysrhythmias

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Updated: Jun 4, 2026

Non-fluoroscopic Catheter Tracking for Fluoroscopy Reduction in Interventional Electrophysiology

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Published on: May 26, 2015

Atrial fibrillation ablation induces reverse remodelling and impacts cardiac function.

G Santarpino¹, A S Rubino, F Onorati

¹Cardiac Surgery Unit, Magna Graecia University, Catanzaro, Italy.

Minerva Cardioangiologica

|February 3, 2011

Summary

Surgical radiofrequency ablation for atrial fibrillation (AF) successfully restored sinus rhythm (SR) in 76.8% of patients. Maintaining SR significantly improved clinical outcomes and cardiac function, reducing hospital readmissions and heart failure.

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Robotic Ablation of Atrial Fibrillation

Robotic Ablation of Atrial Fibrillation

Published on: May 29, 2015

Area of Science:

Cardiology
Cardiac Surgery
Electrophysiology

Background:

The atrio-ventricular response to surgical atrial fibrillation (AF) ablation is not well understood.
Factors influencing AF recurrence after surgical ablation remain a subject of debate.

Purpose of the Study:

To investigate the anatomo-functional response to successful surgical AF ablation.
To identify determinants of AF recurrence following surgical ablation.

Main Methods:

Sixty-nine patients underwent AF ablation during major cardiac surgery.
Clinical and echocardiographic results were assessed post-ablation.
Freedom from AF, rehospitalization, and congestive heart failure (CHF) were secondary outcomes; predictors of AF recurrence were evaluated.

Main Results:

76.8% of patients achieved sinus rhythm (SR) at a mean follow-up of 31.4 months.
SR patients showed significantly better freedom from re-hospitalization (98.1% vs. 62.5%) and CHF (94.7% vs. 77.8%).
SR was associated with atrial and ventricular reverse remodeling and improved left ventricular systolic and diastolic function.

Conclusions:

Radiofrequency AF ablation achieves a high rate of SR recovery (76.8%).
Maintenance of SR post-ablation leads to improved clinical, hemodynamic, and echocardiographic results.
Preoperative atrial diameter and tricuspid insufficiency predict AF recurrence.