Left atrial scar burden determined by delayed enhancement cardiac magnetic resonance at post radiofrequency ablation: association with atrial fibrillation recurrence
نویسندگان
چکیده
Background Left atrial (LA) radiofrequency (RF) ablation has become routine treatment for atrial fibrillation (AF) but still suffers from AF recurrence requiring a repeat procedure. LA-RF ablation success rates vary between 53% and 85%. Delayed-enhancement Cardiac Magnetic Resonance (DE-CMR) can be used to noninvasively visualize LA hyperenhancement (scar). We have utilized DECMR to quantify LA scar extent post LA-RF-ablation and related this measure to AF recurrence.
منابع مشابه
Detection of left atrial scar and changes of cardiac function in relation to AF ablation, by 3D late gadolinium enhancement
Background Atrial Fibrillation (AF) is the most common arrhythmia in clinical practice; catheter ablation (AFCA) is a widespread treatment. Determinants of AFCA success and post-AFCA left atrial remodeling are poorly understood. Delayed Enhancement Cardiac Magnetic Resonance (DE-CMR) has been used to image LA scar post-AFCA and its relation to ablation outcome. Here we explored the role of post...
متن کاملThree dimensional delayed enhancement cardiovascular magnetic resonance imaging of the left atrium and pulmonary veins for atrial fibrillation ablation
Background Atrial fibrillation (AF) is the commonest sustained arrhythmia afflicting the adult population. Identifying and ablating triggers in the left atrium (LA) or more often the pulmonary veins (PV) with radiofrequency energy to restore sinus rhythm is fast becoming the mainstay of treatment. The success of the procedure often requires a combination of imaging techniques with an electroana...
متن کاملNew magnetic resonance imaging-based method for defining the extent of left atrial wall injury after the ablation of atrial fibrillation.
OBJECTIVES We describe a noninvasive method of detecting and quantifying left atrial (LA) wall injury after pulmonary vein antrum isolation (PVAI) in patients with atrial fibrillation (AF). Using a 3-dimensional (3D) delayed-enhancement magnetic resonance imaging (MRI) sequence and novel processing methods, LA wall scarring is visualized at high resolution after radiofrequency ablation (RFA). ...
متن کاملDark regions of no-reflow on late gadolinium enhancement magnetic resonance imaging result in scar formation after atrial fibrillation ablation.
OBJECTIVES The aim of this study was to assess acute ablation injuries seen on late gadolinium enhancement (LGE) magnetic resonance imaging (MRI) immediately post-ablation (IPA) and the association with permanent scar 3 months post-ablation (3moPA). BACKGROUND Success rates for atrial fibrillation catheter ablation vary significantly, in part because of limited information about the location,...
متن کاملNew magnetic resonance imaging based method to define extent of left atrial wall injury after the ablation of atrial fibrillation
Background. We describe a non-invasive method to detect and quantify left atrial (LA) wall injury after pulmonary vein antrum isolation (PVAI) in patients with atrial fibrillation (AF). Using a 3D delayed enhancement MRI sequence and novel processing methods, LA wall scarring is visualized at high resolution after radiofrequency ablation. Methods and Results. LA wall imaging with a 3D delayed-e...
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