Epicardial ventricular tachycardia substrate visualized by magnetic resonance imaging: need for a transpericardial ablation approach?
Autor: | Bernhard Herkommer, Christopher Reithmann, Michael Fiek |
---|---|
Rok vydání: | 2016 |
Předmět: |
Male
medicine.medical_specialty Myocarditis medicine.medical_treatment Epicardial ablation 030204 cardiovascular system & hematology Ventricular tachycardia Electrocardiography Young Adult 03 medical and health sciences QRS complex 0302 clinical medicine Predictive Value of Tests Internal medicine Humans Medicine 030212 general & internal medicine Aged Retrospective Studies Aged 80 and over Heart transplantation medicine.diagnostic_test business.industry Cardiac Pacing Artificial Magnetic resonance imaging General Medicine Middle Aged medicine.disease Ablation Fibrosis Magnetic Resonance Imaging Heart failure Catheter Ablation Tachycardia Ventricular Cardiology Female Cardiomyopathies Electrophysiologic Techniques Cardiac Cardiology and Cardiovascular Medicine business Pericardium Endocardium |
Zdroj: | Clinical Research in Cardiology. 105:827-837 |
ISSN: | 1861-0692 1861-0684 |
Popis: | Sustained ventricular tachycardia (VT) in patients with nonischemic cardiomyopathy (NICM) often involves midmyocardial and epicardial structures. Delayed-enhancement magnetic resonance imaging (DE-MRI) of scar and fibrosis is the method of choice to define the substrate of monomorphic VT. The aim of the study was to compare the outcome of endocardial vs. epicardial VT ablation in patients with epicardial DE-MRI substrates in NICM. Among 44 patients with NICM referred for VT ablation who underwent DE-MRI, 12 patients had an epicardial-only (n = 4) or predominantly epicardial DE-MRI substrate (n = 8). 9 of the 12 patients had a prior myocarditis. Endocardial-only VT ablation was successful in two patients with epicardial DE-MRI substrate. A pericardial access for epicardial mapping and ablation was attempted in 8 patients and could be accomplished in seven. Epicardial low voltage ( |
Databáze: | OpenAIRE |
Externí odkaz: |