Related Experiment Video
Updated: Aug 27, 2025
10:46
Non-fluoroscopic Catheter Tracking for Fluoroscopy Reduction in Interventional Electrophysiology
Published on: May 26, 2015
13.4K
Sinus node dysfunction after radiofrequency catheter ablation of atrial flutter: A case report
Haiwei Li1, Zefeng Wang1, Yongquan Wu1
1Beijing Anzhen Hospital, Capital Medical University, Beijing, China.
Summary
Catheter ablation for atrial flutter can sometimes lead to sick sinus syndrome. Preoperative prediction of this risk is crucial, as it may necessitate pacemaker implantation.
Area of Science:
- Cardiology
- Electrophysiology
- Cardiac Arrhythmias
Background:
- Atrial flutter (AFL) is a common atrial tachyarrhythmia, with catheter ablation (CA) being a standard treatment.
- While CA for typical AFL is effective, it can occasionally unmask or induce sick sinus syndrome (SSS).
- Assessing sinus node function pre-ablation is challenging during persistent AFL.
Observation:
- This case report details a patient who developed SSS following CA for persistent AFL.
- The underlying sinus node dysfunction was not apparent before the ablation procedure.
- The patient required pacemaker implantation due to the post-ablation SSS.
Findings:
- Persistent AFL CA can lead to the occurrence of SSS.
- Preoperative prediction of SSS in AFL patients undergoing CA has not been previously investigated.
- SSS post-ablation may necessitate interventions like pacemaker implantation.
Implications:
- Highlights the potential complication of SSS after AFL CA.
- Emphasizes the need for further research into preoperative prediction of SSS.
- Informs clinical practice regarding the management of patients with AFL undergoing CA.
Related Concept Videos
01:29Disturbances in Heart Rhythm
1.2K
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...
Arrhythmias are categorized by their speed, rhythm, and origin. A slow heart...
1.2K
01:16ECG Interpretation of Arrhythmias I: Sinus Arrhythmias
378
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,...
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,...
378
01:18Dysrhythmias IV: Characteristics of Bradyarrhythmias
108
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...
108
01:25Dysrhythmias VI: Management of Dysrhythmias
104
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...
104
01:25ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias
144
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...
144
01:29Dysrhythmias III: Characteristics of Dysrhythmias
101
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...
101