Related Experiment Video

Updated: Mar 7, 2026

Ablation of Ischemic Ventricular Tachycardia Using a Multipolar Catheter and 3-dimensional Mapping System for High-density Electro-anatomical Reconstruction
06:57

Ablation of Ischemic Ventricular Tachycardia Using a Multipolar Catheter and 3-dimensional Mapping System for High-density Electro-anatomical Reconstruction

Published on: January 31, 2019

15.5K

Premature Ventricular Complex Ablation in Structural Heart Disease

Rakesh Latchamsetty1, Frank Bogun1

  • 1Division of Electrophysiology, Department of Internal Medicine, University of Michigan Health System, CVC, SPC 5853, 1500 East Medical Center Drive, Ann Arbor, MI 48109-5853, USA.

Cardiac Electrophysiology Clinics
|February 8, 2017
PubMed

Insights

Frequent premature ventricular complexes (PVCs) in patients with heart disease increase mortality risk. Catheter ablation effectively eliminates PVCs, improving cardiac function and preventing dangerous arrhythmias.

Area of Science:

  • Cardiology
  • Electrophysiology
  • Cardiac Surgery

Background:

  • Frequent premature ventricular complexes (PVCs) in patients with structural heart disease, especially post-myocardial infarction, are linked to increased mortality.
  • Antiarrhythmic drug therapy for PVCs in this population can paradoxically increase mortality.
  • High PVC burdens can induce or exacerbate cardiomyopathy and trigger life-threatening ventricular arrhythmias.

Purpose of the Study:

  • To evaluate the impact of PVCs on mortality and cardiac function in patients with structural heart disease.
  • To assess the efficacy and safety of catheter ablation as a treatment for frequent PVCs in this high-risk group.
  • To explore the role of PVC ablation in preventing malignant ventricular arrhythmias.

Main Methods:

  • Retrospective analysis of patients with structural heart disease and frequent PVCs.
  • Comparison of outcomes between patients treated with antiarrhythmic drugs versus catheter ablation.
  • Mapping and ablation of PVCs guided by electrophysiological studies.

Main Results:

  • Catheter ablation successfully eliminated PVCs in a significant majority of patients.
  • Elimination of PVCs led to improvement or normalization of cardiac function and reduced cardiomyopathy.
  • Patients undergoing ablation experienced a lower incidence of malignant ventricular arrhythmias compared to those on antiarrhythmic drugs.

Conclusions:

  • Catheter ablation is a safe and effective strategy for managing frequent PVCs in patients with structural heart disease.
  • PVC elimination through ablation improves cardiac function and reduces mortality risk.
  • Ablation of PVCs is crucial for preventing further cardiac events, particularly in post-myocardial infarction patients.

Keywords:
AblationCardiomyopathyPremature ventricular complexesStructural heart disease

More Related Videos

Robotic Ablation of Atrial Fibrillation11:21

Robotic Ablation of Atrial Fibrillation

Published on: May 29, 2015

20.3K
Benefits of Cardiac Resynchronization Therapy in an Asynchronous Heart Failure Model Induced by Left Bundle Branch Ablation and Rapid Pacing12:45

Benefits of Cardiac Resynchronization Therapy in an Asynchronous Heart Failure Model Induced by Left Bundle Branch Ablation and Rapid Pacing

Published on: December 11, 2017

11.1K

Related Concept Videos

Disturbances in Heart Rhythm01:29

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...
3.4K
ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias01:25

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

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...
734
Dysrhythmias IV: Characteristics of Bradyarrhythmias01:18

Dysrhythmias IV: Characteristics of Bradyarrhythmias

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...
708
Dysrhythmias VI: Management of Dysrhythmias01:25

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...
551
Cardiomyopathy V: Interprofessional Care01:29

Cardiomyopathy V: Interprofessional Care

Managing cardiomyopathy involves addressing underlying or precipitating causes, treating heart failure with medications, and implementing dietary changes and a balanced exercise and rest regimen.Lifestyle ModificationsCardiomyopathy patients should adopt a low-sodium diet to reduce fluid retention and manage heart failure. A personalized exercise and rest plan helps maintain physical fitness without overstraining the heart. Avoiding alcohol and tobacco is essential to prevent further damage to...
564
Dysrhythmias II: Classification of Tachyarrhythmias01:28

Dysrhythmias II: Classification of Tachyarrhythmias

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...
709