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1. Objective randomised blinded investigation of therapeutic ablation versus cardioversion for persistent atrial fibrillation- outcomes of the feasibility

3. POSTERS (1)59MULTIPOLAR CONTACT MAPPING GUIDED ABLATION OF TEMPORALLY STABLE HIGH FREQUENCY AND COMPLEX FRACTIONATED ATRIAL ELECTROGRAM SITES IN PATIENTS WITH PERSISTENT ATRIAL FIBRILLATION60INTRA-CARDIAC AND PERIPHERAL LEVELS OF BIOCHEMICAL MARKERS OF FIBROSES IN PATIENTS UNDERGOING CATHETER ABLATION FOR ATRIAL FIBRILATION61THE DON'T WAIT TO ANTICOAGULATE PROJECT (DWAC) BY THE WEST OF ENGLAND ACADEMIC HEALTH SCIENCE NETWORK (AHSN) OPTIMISES STROKE PREVENTION FOR PATIENTS WITH ATRIAL FIBRILLATION (AF) WITHIN PRIMARY CARE IN LINE WITH NICE CG180 IN THE WEST OF ENGLAND62ILLNESS AND TREATMENT REPRESENTATIONS, COPING AND DISTRESS: VICIOUS CYCLES OF EVERYDAY EXPERIENCES IN PATIENTS WITH PERSISTENT ATRIAL FIBRILLATION63THE NEEDS OF THE ADOLESCENT LIVING WITH AN INHERITED CARDIAC CONDITION: THE PATIENTS' PERSPECTIVE64SAFETY AND EFFICACY OF PARAMEDIC TREATMENT OF REGULAR SUPRAVENTRICULAR TACHYCARDIA (PARA-SVT)65NATURAL PROGRESSION OF QRS DURATION FOLLOWING IMPLATABLE CARDIOVERTER DEFIBRILLATORS (ICD) - IMPLANTATION66COMPARISON OF EFFICACY OF VOLTAGE DIRECTED CAVOTRICUSPID ISTHMUS ABLATION USING MINI VS CONVENTIONAL ELETRODES67CRYOBALLOON ABLATION (CRYO) FOR ATRIAL FIBRILLATION (AF) CANNOT BE GUIDED BY TEMPERATURE END-POINTS ALONE68MODERATOR BAND ECTOPY UNMASKED BY ADENOSINE AS A CAUSE OF ECTOPIC TRIGGERED IDIOPATHIC VF69EARLY CLINICAL EXPERIENCE WITH TARGETED SITE SELECTION FOR THE WiCS-LV ELECTRODE FOR CRT70DOES VECTOR MAPPING PRIOR TO IMPLANTABLE LOOP RECORDER INSERTION IMPROVE THE DETECTION OF ARRHYTHMIA?71THE ROLE OF SPECKLE TRACKING STRAIN IMAGING IN ASSESSING LEFT VENTRICULAR RESPONSE TO CARDIAC RESYNCHRONISATION THERAPY IN RESPONDERS AND NON-RESPONDERS72EVALUATING PATIENTS' EXPERIENCE AND SATISFACTION OF THE ATRIAL FIBRILLATION ABLATION PROCEDURE: A RETROSPECTIVE ANALYSIS73TROUBLESHOOTING LV LEAD IMPLANTATION - NOVEL “UNIRAIL TECHNIQUE”74SUBCLINICAL ATHEROSCELEROSIS AND COGNITIVE IMPAIRMENT75EFFECT OF LOZARTANE ON DEVELOPMENT OF THE ELECTRICAL INSTABILITY OF THE MYOCARDIUM76THE INTERPLAY BETWEEN BODY COMPOSITION AND LEFT VENTRICULAR REMODELLING IN CARDIAC RESYNCHRONISATION THERAPY77FAMILY SCREENING IN IDIOPATHIC VENTRICULAR FIBRILLATION78MANAGEMENT OF ATRIAL FIBRILLATION IN A LARGE TEACHING HOSPITAL79THE EFFECT OF LEFT VENTRICULAR LEAD POSITION ON SURVIVAL IN PATIENTS WITH BINVENTRICULAR PACEMAKRS/DEFIBRILLATORS80ACUTE DEVICE IMPLANT-RELATED COMPLICATIONS DO NOT INCREASE LATE MORTALITY81ABORTED CARIDAC ARREST AS THE SENTINEL PRESENTATION IN A COHORT OF PATIENTS WITH THE CONCEALED BRUGADA PHENOTYPE82POST-CARDIAC DEVICE IMPLANTATION MOBILISATION ADVICE: A NATIONAL SURVEY83DO RISK SCORES DEVELOPED TO PROTECT ONE-YEAR MORTALITY ACTUALLY HELP IN ACCURATELY SELECTING PATIENTS RECEIVING PRIMARY PREVENTION ICD?84ATRIAL TACHYCARDIA ARISING FROM THE NON-CORONARY AORTIC CUSP85THE EFFECT OF DIFFERENT ATRIAL FIBRILLATION ABLATION STRATEGIES ON SURFACE ECG P WAVE DURATION86PRESCRIBING DRONEDARONE: HOW IS IT DONE ACROSS THE UK AND IS IT SAFE?87A CASE OF WIDE COMPLEX TACHYCARDIA88TRANSITION TO DEDICATED DAY CASE DEVICES - SAFETY AND EFFICACY IN A LARGE VOLUME CENTRE89SEQUENTIAL REGIONAL DOMINANT FREQUENCY MAPPING DURING ATRIAL FIBRILLATION: A NOVEL TEQUNIQUE90ELECTIVE CARDIOVERSION ENERGY PROTOCOLS: A RETROSPECTIVE COMPARISON OF ESCALATION STRATEGIES91THE INCIDENCE OF CLINCALLY RELEVANT HAEMATOMAS WITH PERIOPERATIVE USE OF NEWER P2Y12 INHIBITORS AND INTERRUPTED NOAC THERAPY IN CARDIAC IMPLANTABLE ELECTRONIC DEVICE INSERTION92AN AUDIT OF THE OUTCOMES FOR CHEMICAL AND DIRECT CURRENT CARDIOVERSION FOR ATRIAL FIBRILLATION AT OUR DGH OVER A 3 YEAR DURATION93REAL LIFE ACUTE MANAGEMET OF HAEMODYNAMICALLY TOLERATED MONOMORPHIC VENTRICULAR TACHYCARDIA. ARE WE MAKING EVIDENCE BASED ON DECISIONS?94A SERVICE EVALUATION TO ASSESS THE EFFICACY AND SAFETY OF NOVEL ORAL ANTICOAGULANTS VERSUS WARFARIN FOR ELECTIVE CARDIVERSION IN PATIENTS WITH NON VALVULAR AF IN A NURSE LED CARDIOVERSION SERVICE95PICK UP RATE OF IMPLANTED LOOP RECORDER AT A DISTRICT HOSPITAL

4. ORAL ABSTRACTS (3)EP & Ablation31LEFT ATRIAL POSTERIOR WALL ISOLATION (THE “BOX LESION PATTERN”) IN THE TREATMENT OF ATRIAL FIBRILLATION: A SINGLE CENTRE EXPERIENCE32DAY CASE CRYOBLATION (CRYO) FOR PAROXYSMAL ATRIAL FIBRILLATION (pAF) IN THE DISTRICT GENERAL HOSPITAL IS SAFE AND EFFECTIVE IF DONE IN HIGH VOLUME WITH EXPERIENCED OPERATORS33ABLATION INDEX-GUIDED PULMONARY VEIN ISOLATION FOR ATRIAL FIBRILLATION MAY IMPROVE CLINICAL OUTCOMES IN COMPARISON TO CONTACT FORCE-GUIDED ABLATION34THE PROCEDURAL COMPLICATION RATES AND SHORT-TERM SUCCESS RATES OF THORACOSCOPIC AF ABLATION DURING THE INSTITUTIONAL LEARNING CURVE35INITIAL PROCEDURAL RESULTS FROM DDRAMATIC-SVT STUDY: DD MECHANISM IDENTIFICATION AND LOCALISATION USING DIPOLE DENSITY MAPPING TO GUIDE ABLATION STRATEGY36MORBIDITY AND MORTALITY IN MIDDLE-AGED INDIVIDUALS WITH ATRIAL FIBRILLATION: UK BIOBANK DATAClinical EP37THE GM AHSN AF LANDSCAPE TOOL: A SHARED PUBLIC DATA PLATFORM TO PROMOTE QUALITY IMPROVEMENTS AND IDENTIFY OPPORTUNITIES TO PREVENT AF-RELATED STROKE IN THE DEVOLVED GREATER MANCHESTER HEALTH SYSTEM38REAL WORLD PERSISTENCE, ADHERENCE AND SWITCH-OVER ACROSS ANTICOAGULANTS IN ATRIAL FIBRILLATION-A NATIONAL POPULATION-BASED STUDY39ORTHOSTATIC HYPOTENSION AND ATRIAL FIBRILLATION40PREVALENCE OF SHORT QT AND CRITERIA OF SEVERITY IN A YOUNG ASYMPTOMATIC COHORT41SURFACE ELECTROCARDIOGRAPHIC FEATURES AND PREVALENCE OF ARRHYTHMIAS IN PAEDIATRIC FRIEDREICH'S ATAXIA42RISK STRATIFICATION OF TYPE 1 MYOTONIC DYSTROPHY: IS THE ECG ACCURATE ENOUGH TO SELECT PATIENTS AT RISK OF BRADYARRHYTHMIC EVENTS?

5. ORAL ABSTRACTS (1)Allied Professionals7CRYOABLATION FOR PAROXYSMAL ATRIAL FIBRILLATION - IS AN EP LAB REQUIRED?8A PATHWAY TO SAFETY - ANTICOAGULATION COMPLIANCE IN CIED PATIENTS WITH AF9UNDERSTANDING THE WAYS IN WHICH OCCUPATION IS AFFECTED BY POSTURAL TACHYCARDIA SYNDROME: A UK OCCUPATIONAL THERAPY PERSPECTIVE10DEVELOPMENT OF AN INTERGRATED SUPPORT PATHWAY FOR PATIENTS FULFILLING NICE CRITERIA FOR AN INTERNAL CARDIOVASCULAR DEBRIBRILLATOR (ICD) IN A DISTRICT GENERAL HOSPITAL11ARE CARDIOVASCULAR RISK FACTORS ALSO ASSOCIATED WITH THE INCIDENCE OF ATRIAL FIBRILLATION? A SYSTEMATIC REVIEW AND FIELD SYNOPSIS OF 23 FACTORS IN 32 INITIALLY HEALTHY COHORTS OF 20 MILLION PARTICIPANTS12BRAIN MRI FINDINGS IN PATIENTS WITH ATRIAL FIBRILLATION UNDERGOING CARDIOVERSIONBasic Science/Sudden Cardiac Death13PRELIMINARY ASSESSMENT OF THE “RE-ENTRY VULNERABILITY INDEX” AS A MARKER OF CARDIAC INSTABILITY IN THE HUMAN HEART USING WHOLE-HEART CONTACT EPICARDIAL MAPPING14OPTOGENETIC STIMULATION OF BRAINSTEM'S VAGAL PREGANGLIONIC NEURONES IS ASSOCIATED WITH NEURONAL NITRIC OXIDE SYNTHASE-DEPENDENT PROLONGATION OF VENTRICULAR EFFECTIVE REFRACTORY PERIOD15A DYNAMIC-CLAMP STUDY OF L-TYPE Ca2+ CURRENT IN RABBIT AND HUMAN ATRIAL MYOCYTES: THE CONTRIBUTION OF WINDOW ICaL TO EARLY AFTERDEPOLARISATIONS16WHOLE EXOME SEQUENCING IN SUDDEN INFANT DEATH SYNDROME17MEDIUM TERM SURVIVAL AND FAMILY SCREENING OUTCOMES IN AN IDIOPATHIC VENTRICULAR FIBRILLATION COHORT - A MULTICENTRE EXPERIENCE18CLINICAL CHARACTERISTICS OF SCD SURVIVORS WITH BRUGADA SYNDROME:- ARE SPONSANEOUS TYPE I ECG AND PREVIOUS SYNCOPE REALLY ASSOCIATED WITH HIGH RISK?

6. MODERATED POSTERS (2)51GLOBAL HIGH DENSITY MAPPING OF RE-ENTRY VULNERABILITY INDEX INDENTIFIES SITES OF RIGHT VENTRICULAR ARRHYTHMIA INITIATION IN BRUGADA SYNDROME AND ARVC52THE ROLE OF ADENOSINE-GUIDED PULMONARY VEIN ISOLATION IN PATIENTS UNDERGOING ATRIAL FIBRILLATION ABLATION:AN UPDATED META-ANALYSIS53FIRST EVIDENT THAT T-PEAK AND TPEAK-TEND CORRELATE WITH RIGHT TO LEFT AND TRANSMURAL DYNAMIC DISPERSION OF REPOLARIZATION IN THE INTACT HUMAN HEART54RIPPLE MAPPING VENTRICULAR SCAR TO CHARACTERIZE CHANNELS SUPPORTING RE-ENTRANT TACHYCARDIA AS A GUIDE TO ABLATION55LONG TERM DURABILITY OF PULMONARY VEIN ISOLATION: INSIGHTS FROM A RANDOMISED TRIAL OF CRYOBALLOON VERSUS RADIOFREQUENCY ABLATION FOR A COMBINED APPROACH56A SINGLE-CENTRE EXPERIENCE OF THE CONVERGENT PROCEDURE FOR THE TREATMENT OF LONG-STANDING PERSISTENT ATRIAL FIBRILLATION57MODERATE SEDATION IN THE CARDIAC ELECTROPHYSIOLOGY LABORATORY: A RETROSPECTIVE ANALYSIS TO ASSESS SAFETY58USE OF GENERAL ANAESTHESIA IN CATHETER ABLATION OF PERSISTENT AF: IMPROVED OUTCOME AND COST EFFECTIVENESS

7. Moderated Posters 251Gap junction uncoupling during ischaemia activates normally quiescent purkinje-myocardial junctions resulting in accelerated and more complex activation patterns52The role of gαi2 signalling in cardiac electrophysiology53Midline atrial tachycardia: mapping and differentiation54A multicentre experience of percutaneous left atrial appendage occlusion using different technologies in the united kingdom55Opportunistic screening for atrial fibrillation during flu clinics56Primary care achievement of anticoagulation in atrial fibrillation: as assessed by the quality and outcomes framework57Is combined ablation for paroxysmal atrial fibrillation using balloon cryoablation and radiofrequency ablation superior to either technique alone? long-term follow up and cost analysis58Impact of voltage mapping to guide whether or not to perform ablation of the posterior wall in patient with persistent atrial fibrillation

8. Devices & Sudden death31Quadripolar left ventricular leads should be the gold standard in crt due to efficacy and cost effectiveness: an analysis from a multi-centre uk registry32Cardiac computed tomography is a feasible imaging modality for pre procedural planning in patients undergoing upgrade from pacemakers to CRT33Derivation and external validation of a cardiac resynchronization therapy response score34Generation and validation of transformation coefficients to reconstruct 12-lead electrocardiograms from 3 subcutaneous implantable cardioverter defibrillator electrodes35Risk stratification of sudden cardiac death: positive evaluation of novel surface electrocardiogram biomarkers in a brugada syndrome cohort36The real world cost of cardiac implantable electronic device transvenous extractions37Advances in technology for rapid and reliable ecg acquisition38Excellent symptom rhythm correlation in patients with palpitations using a novel smartphone based event recorder39Differential ventricular repolarisation responses during sympathetic surge versus sustained sympathetic stimulation–in vivo evidence from humans40Approaching a fluro free daily life ep lab41Development and validation of the cardiff cardiac ablation prom (C-CAP) for patients with symptomatic cardiac arrhythmias42The changing tide of novel oral anti-coagulant use in england

9. Mapping & Ablation19Novel global ultrasound imaging and continuous dipole density mapping: initial findings in AF patients20Low voltage functional myocardium is critical in determining the substrate of post-ablation atrial tachycardia: results from a prospective study using ripple mapping distinguishing low-voltage scar from conducting tissue21Ripple mapping of post infarct ventricular scar to identify conduction channels and guide substrate based ablation22Effect of chamber geometry and activation pattern on optimal local activation time sampling density for tachycardia diagnosis25Clinical measures of good basket placement predict successful outcome from atrial fibrillation rotor ablation26Unipolar electrogram amplitude is reduced at rotor sites critical to focal termination of human persistent AF27Cryoballoon versus point by point radiofrequency ablation or a novel combined approach: long term follow up and comparison of patterns of pulmonary vein reconnection between different ablation strategies in a randomised controlled trial28Recurrent high dominant frequency patterns in persistent atrial fibrillation29Optimisation of late gadolinium enhanced (LGE) cmr imaging of atrial ablation scar30Hyperacute and chronic changes in cerebral magnetic resonance images after PVAC, NMARQ and epicardial thoracoscopic surgical ablation for paroxysmal atrial fibrillation

11. POSTER SESSION 2, HRC 2013

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