Sonia M Azzopardi

  • Citations Per Year
Learn More
BACKGROUND Circumferential pulmonary vein (PV) isolation is the cornerstone of catheter ablation for atrial fibrillation (AF); however, PV reconnection remains problematic. OBJECTIVE To assess the impact of PV anatomy on outcome after AF ablation. METHODS One hundred two patients with paroxysmal AF underwent cardiac magnetic resonance (60%) or computed(More)
BACKGROUND The impact of diffuse atrial fibrosis detected by T1 mapping on the clinical outcome after atrial fibrillation (AF) ablation is unknown. OBJECTIVE This study aimed to validate and assess the impact of post-contrast cardiac magnetic resonance (CMR) imaging atrial T1 mapping on the clinical outcome after catheter ablation for AF. METHODS CMR(More)
BACKGROUND AND RESEARCH OBJECTIVE The primary objective of this longitudinal study was to examine patient-perceived health-related quality of life (HRQOL) and depressive symptoms 2 years after coronary artery bypass graft surgery (CABGS) compared with the results from preoperative and 1 year postoperative data and to compare the 2-year follow-up data with(More)
AIMS Pulmonary vein isolation (PVI) is the cornerstone of catheter ablation of atrial fibrillation (AF). The intervenous ridge (IVR) may be incorporated into ablation strategies to achieve PVI; however, randomized trials are lacking. We performed a randomized multi-centre international study to compare the outcomes of (i) circumferential antral PVI (CPVI)(More)
BACKGROUND There is a complex interplay between the atria and ventricles in atrial fibrillation (AF). Cardiac magnetic resonance (CMR) imaging provides detailed tissue characterization, identifying focal ventricular fibrosis with late gadolinium enhancement (ventricular late gadolinium enhancement) and diffuse fibrosis with postcontrast-enhanced T1 mapping.(More)
INTRODUCTION ELECTROPHYSIOLOGICAL AND HEMODYNAMIC ASSESSMENT. DORMANT-AF STUDY The significance of adenosine induced dormant pulmonary vein (PV) conduction in atrial fibrillation (AF) ablation remains controversial. The optimal dose of adenosine to determine dormant PV conduction is yet to be systematically explored. METHODS AND RESULTS(More)
BACKGROUND Atrial fibrillation (AF) and left ventricular systolic dysfunction (LVSD) frequently co-exist despite adequate rate-control. Existing randomized studies of AF and LVSD of varying etiologies have demonstrated modest benefits with a rhythm control strategy. OBJECTIVE To determine whether catheter ablation (CA) for AF could improve LVSD compared(More)
INTRODUCTION The right atrium (RA) is readily accessible; however, it is unclear whether changes in the RA are representative of the LA. We performed detailed biatrial electroanatomic mapping to determine the electrophysiological relationship between the atria. METHODS AND RESULTS Consecutive patients with persistent AF underwent biatrial(More)
  • 1