[Catheter ablation of ventricular arrhythmias. Complications and emergency situations]
Kristina Wasmer1,2, Lars Eckardt3,4
1Division of Clinical and Experimental Electrophysiology, Department of Cardiology and Angiology, University Hospital Münster, Münster, Deutschland. wasmerk@ukmuenster.de.
Insights
Catheter ablation effectively treats ventricular arrhythmias in patients with or without structural heart disease. While complications occur, especially in those with heart disease, the procedure offers significant benefits for symptom relief and improved outcomes.
Area of Science:
- Cardiology
- Electrophysiology
- Medical Devices
Background:
- Catheter ablation is a recognized therapy for ventricular arrhythmias.
- Treatment goals differ based on the presence of structural heart disease: symptomatic relief for those without, and reduced ICD therapies/improved prognosis for those with.
Purpose of the Study:
- To summarize the efficacy and safety of catheter ablation for ventricular arrhythmias.
- To differentiate outcomes and complication rates in patients with and without structural heart disease.
Main Methods:
- Review of established treatment protocols for catheter ablation of ventricular arrhythmias.
- Analysis of complication rates and mortality associated with the procedure.
Main Results:
- Major complication rates range from 6-10% in patients with structural heart disease, with vascular complications being most frequent.
- Life-threatening complications like pericardial tamponade and stroke are less common.
- Procedure-associated mortality is reported between 0-3%.
- Patients with idiopathic ventricular tachycardia experience significantly lower complication rates compared to those with structural heart disease.
Conclusions:
- Catheter ablation is a valuable treatment for ventricular arrhythmias.
- Risk stratification is crucial, with higher complication rates observed in patients with structural heart disease.
- The procedure demonstrates an acceptable safety profile, particularly in patients without structural heart disease.
Abstract:
Catheter ablation of ventricular arrhythmias is an established treatment for patients with and without structural heart disease. For patients without structural heart disease, the aim is symptomatic relief, while the ultimate goals for patients with underlying structural heart disease are reduction of ICD therapies and improved prognosis. Rates for major complications range between 6-10% in patients with structural heart disease. Vascular complications are most common; life-threatening complications (e.g., pericardial tamponade and stroke) are less frequent. Procedure-associated mortality is reported to be 0-3%. In patients with idiopathic ventricular tachycardia, the complication rate is much lower compared to patients with structural heart disease.
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