Home > EUROPEAN JOURNAL OF ARRHYTHMIA & ELECTROPHYSIOLOGY – VOLUME 5 SUPPLEMENT 1 – 2019

EUROPEAN JOURNAL OF ARRHYTHMIA & ELECTROPHYSIOLOGY – VOLUME 5 SUPPLEMENT 1 – 2019

The official abstracts from the Heart Rhythm Congress (HRC) 2019.

Young Investigators Competition – Basic Science

Young Investigators Competition – Clinical Science

Oral Abstracts (1) – Allied Professionals & Service Improvement

Oral Abstracts (1) – AF – Clinical

Oral Abstracts (2) – Arrhythmia Mechanisms

Oral Abstracts (2) – Imaging and Clinical EP

Oral Abstracts (3) – Devices

Oral Abstracts (3) – Mapping and Ablation

Moderated Posters (1)

Moderated Posters (2)

Posters (1)

Posters (2)

Abstracts – Paediatric Session

Young Investigators Competition - Basic Science

Atrial Fibrillation
Atrial Fibrillation
3/Left atrial cardiomyocyte PITX2 expression predicts recurrent atrial fibrillation after atrial fibrillation ablation in patients
JS Reyat (Presenting Author) - Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, Medical School, University of Birmingham, Birmingham, UK W Chua - Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, Medical School, University of Birmingham, Birmingham, UK; JR de Groot - Amsterdam University Medical Centres, University of Amsterdam, Department of Cardiology, Amsterdam, The Netherlands; L Fabritz - Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, Medical School, University of Birmingham and Department of Cardiology, University Hospital Birmingham, Birmingham, UK; P Kirchhof - Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, Medical School, University of Birmingham and Department of Cardiology, University Hospital Birmingham and Department of Cardiology, Sandwell and West Birmingham NHS Trust, Birmingham, UK

Introduction: Atrial fibrillation (AF) is the most common sustained cardiac arrythmia characterised by abnormal electrical impulse conduction throughout the atria. Although many patients with AF respond well to rhythm control therapy (medication to restore sinus rhythm), others experience early AF recurrences. Our understanding of which patients will experience an AF recurrent event whilst on rhythm control […]

Young Investigators Competition - Clinical Science

Oral Abstracts (1) - Allied Professionals & Service Improvement

Oral Abstracts (1) - AF – Clinical

Atrial Fibrillation
Atrial Fibrillation
13/Prognostic model development for prevalent atrial fibrillation using individual patient data from European cohorts: preliminary results from CATCH ME
W Chua (Presenting Author) - University of Birmingham, Birmingham, UK; CL Easter - University of Birmingham, Birmingham, UK; E Guasch - Institute of Biomedical Research August Pi Sunyer (IDIBAPS), Barcelona, Spain; AJ Sitch - University of Birmingham, Birmingham, UK; B Casadei - University of Oxford, Oxford, UK; JJ Deeks - University of Birmingham, Birmingham, UK; D Haase - Atrial Fibrillation NETwork (AFNET), Muenster, Germany; S Hatem - IHU-ICAN Institute of Cardiometabolism and Nutrition, Paris, France; K Hemming - University of Birmingham, Birmingham, UK; S Kaab - Ludwig-Maximilians University, Munich, Germany; L Mont - Hospital Clinic de Barcelona, Barcelona, Spain; U Schotten - Cardiovascular Research Institute Maastricht (CARIM), Maastricht, The Netherlands; MF Sinner - Ludwig-Maximilians University, Munich, Germany; A Ziegler - Roche Diagnostics International AG, Rotkreuz, Switzerland; P Kirchhof - University of Birmingham, Birmingham, UK; L Fabritz - University of Birmingham, Birmingham, UK

Background and introduction: Atrial fibrillation (AF) can be challenging to diagnose due to asymptomatic and paroxysmal presentation. Identifying predictors associated with prevalent AF would elucidate different underlying mechanisms causing AF and potentially refine screening procedures of at-risk patients. We developed a prognostic model for prevalent AF by repurposing deeply phenotyped individual patient data from four independent […]

Atrial Fibrillation, Devices, Interventional Cardiology
Atrial Fibrillation, Devices, Interventional Cardiology
16/Continuous reduction in irrigation rate during irrigated radiofrequency catheter ablation results in a more optimised lesion shape through reduced endocardial sparing
M Dewi (Presenting Author) - Institute of Genetic Medicine, Newcastle University, Newcastle Upon Tyne, UK; ER Dookun - Institute for Ageing, Newcastle University; Institute of Genetic Medicine, Newcastle University, Newcastle Upon Tyne, UK; A Walaszczyk - Institute for Ageing, Newcastle University; Institute of Genetic Medicine, Newcastle University, Newcastle Upon Tyne, UK; RI Martin - Department of Cardiology, Freeman Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle Upon Tyne, UK; GD Richardson (Presenting Author) - Institute for Ageing, Newcastle University; Institute of Genetic Medicine, Newcastle University, Newcastle Upon Tyne, UK; M Das (Presenting Author) - Institute of Genetic Medicine, Newcastle University; Department of Cardiology, Freeman Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle Upon Tyne, UK

Introduction: Irrigated catheters are the standard tool for radiofrequency (RF) ablation in the left atrium and ventricles. However, pathological studies of irrigated RF lesions show a “tear-drop” shape, with the widest diameter some depth below the endocardial surface and relative endocardial sparing. This results in the need for overlap of lesions to achieve contiguity at the […]

Oral Abstracts (2) - Arrhythmia Mechanisms

Arrhythmia
Arrhythmia
19/The immunohistochemical characteristics of ectopy-triggering ganglionated plexuses in Langendorff-perfused porcine hearts
MY Kim (Presenting Author) - Myocardial Function, Imperial College London, London, UK; J Nesbitt - Myocardial Function, Imperial College London, London, UK; S Koutsoftidis - Department of Bioengineering, Imperial College London, London, UK; SM Rothery - National Heart & Lung Institute, Imperial College London, London, UK; J Brook - Myocardial Function, Imperial College London, London, UK;DS Pitcher - Myocardial Function, Imperial College London, London, UK; CD Cantwell - Myocardial Function, Imperial College London, London, UK; BS Handa - Myocardial Function, Imperial College London, London, UK; C Jenkins - Myocardial Function, Imperial College London, London, UK; C Houston - Myocardial Function, Imperial College London, London, UK; L Lorrence - National Heart & Lung Institute, Imperial College London, London, UK; A Jothidasan - Harefield Hospital, Royal Brompton and Harefield NHS Foundation Trust, London, UK; J Perkins - Royal Veterinary College, London, UK; P Bristow - Royal Veterinary College, London, UK; K Petkos - Department of Bioengineering, Imperial College London, London, UK; G Zafeiropoulos - Department of Bioengineering, Imperial College London, London, UK; NWF Linton - Myocardial Function, Imperial College London, London, UK; E Drakakis - Department of Bioengineering, Imperial College London, London, UK; RA Chowdhury - Myocardial Function, Imperial College London, London, UK; NS Peters - Myocardial Function, Imperial College London, London, UK; P Kanagaratnam - Myocardial Function, Imperial College London, London, UK; FS Ng - Myocardial Function, Imperial College London, London, UK

Introduction: The intrinsic cardiac autonomic nervous system comprises interconnected epicardial ganglionated plexuses (GP) that are implicated in the initiation of atrial fibrillation (AF). GPs can be stimulated and functionally identified by delivering high frequency stimulation (HFS) within the local atrial refractory period, which can cause atrial ectopy and AF. These GPs are called ’ectopy-triggering GP‘ (ET-GP). […]

Oral Abstracts (2) - Imaging and Clinical EP

Oral Abstracts (3) - Devices

Electrophysiology
Electrophysiology
32/ECGI-derived left ventricular activation patterns predict correction of LBBB by His bundle pacing
AD Arnold (Presenting Author) – National Heart & Lung Institute, Imperial College London, London, UK; MJ Shun-Shin – National Heart and Lung Institute, Imperial College London, London, UK; D Keene – National Heart and Lung Institute, Imperial College London, London, UK; JP Howard – National Heart and Lung Institute, Imperial College London, London, UK; JJ Chow – National Heart and Lung Institute, Imperial College London, London, UK; SMA Sohaib – St Bartholomew’s Hospital, Barts HBarts Health NHS Trust, London, UK; IJ Wright – National Heart and Lung Institute, Imperial College London, London, UK; GD Cole – National Heart and Lung Institute, Imperial College London, London, UK; A Miyazawa – National Heart and Lung Institute, Imperial College London, London, UK; A Muthumala – St Bartholomew’s Hospital, Barts HBarts Health NHS Trust, London, UK; M Tanner – National Heart and Lung Institute, Imperial College London, London, UK; DP Francis – National Heart and Lung Institute, Imperial College London, London, UK; ZI Whinnett – National Heart and Lung Institute, Imperial College London, London, UK

Introduction: Biventricular pacing (BVP) improves morbidity and mortality in patients with heart failure and Left Bundle Branch Block (LBBB), but there is considerable scope for improved outcomes if more effective resynchronisation could be achieved. His bundle pacing (HBP) appears to be able to overcome LBBB and is a new method for Cardiac Resynchronisation Therapy (CRT). We […]

Electrophysiology
Electrophysiology
34/Improved electromechanical stability of a novel active fixation coronary sinus lead compared to passive fixation leads – A multi-centre study
D Gerontitis (Presenting Author) – Cardiology Department, University Hospital Southampton NHS Foundation Trust, Southampton, UK; J Wardley – Department of Cardiology, Norfolk and Norwich University Hospital, Norwich, UK; M Chapman – Department of Cardiology, The James Cook University Hospital, Middlesbrough, UK; Zegard – Aston Medical Research Institute, Aston Medical School, Aston University, Birmingham, UK; E Sammut – Bristol Heart Institute, University Hospitals Bristol NHS Foundation Trust, Bristol, UK; MGD Bates – Department of Cardiology, The James Cook University Hospital, Middlesbrough, UK; PR Roberts – Cardiology Department, University Hospital Southampton NHS Foundation Trust, Southampton, UK; J Paisey – Cardiology Department, University Hospital Southampton NHS Foundation Trust, Southampton, UK; A Yue – Cardiology Department, University Hospital Southampton NHS Foundation Trust, Southampton, UK; I Diab – Bristol Heart Institute, University Hospitals Bristol NHS Foundation Trust, Bristol, UK; AWC Chow – Barts Heart Centre, St Bartholomew’s Hospital, London, UK; P Waddingham – Barts Heart Centre, St Bartholomew’s Hospital, London, UK; F Leyva – Aston Medical Research Institute, Aston Medical School, Aston University, Birmingham, UK; AJ Turley – Department of Cardiology, The James Cook University Hospital, Middlesbrough, UK; L Williams – Department of Cardiology, Norfolk and Norwich University Hospital, Norwich, UK; W Ullah – Cardiology Department, University Hospital Southampton NHS Foundation Trust, Southampton, UK

Introduction: Cardiac resynchronisation is an effective therapy in patients with heart failure with reduced ejection fraction (EF). A novel active fixation coronary sinus (CS) lead, Attain Stability, has been released in a bipolar and quadripolar configuration, with the hypothesis it will improve targeted lead positioning and stability independent of vessel anatomy. We sought to compare implant […]

Oral Abstracts (3) - Mapping and Ablation

Moderated Posters (1)

Moderated Posters (2)

Atrial Fibrillation, Devices, Interventional Cardiology
Atrial Fibrillation, Devices, Interventional Cardiology
54/Hybrid surgical ablation versus catheter ablation alone in longstanding persistent atrial fibrillation: A single centre propensity-matched cohort study
E Maclean (Presenting Author) – Queen Mary University of London, London, UK; J Yap – St Bartholomew’s Hospital, London, UK; S Kolvekar – St Bartholomew’s Hospital, London, UK; W Lim – St Bartholomew’s Hospital, London, UK; B Saberwal – St Bartholomew’s Hospital, London, UK; G Dhillon – St Bartholomew’s Hospital, London, UK; N Wijesuriya – St Bartholomew’s Hospital, London, UK; N Papageorgiou – St Bartholomew’s Hospital, London, UK; R Hunter – St Bartholomew’s Hospital, London, UK; M Lowe – St Bartholomew’s Hospital, London, UK; P Lambiase – St Bartholomew’s Hospital, London, UK; A Chow – St Bartholomew’s Hospital, London, UK; H Abbas – St Bartholomew’s Hospital, London, UK; R Schilling – St Bartholomew’s Hospital, London, UK; Rowland – St Bartholomew’s Hospital, London, UK; S Ahsan – St Bartholomew’s Hospital, London, UK

Introduction: Maintenance of sinus rhythm is challenging in patients with longstanding persistent atrial fibrillation (PeAF); outcomes from catheter ablation are suboptimal. We investigated whether combining minimally invasive surgical ablation with catheter ablation (‘Hybrid ablation’) improved outcomes versus catheter ablation alone. Methods: Forty-three consecutive patients (mean age 68.6 ± 7.7 years, median LVEF 50%, mean left atrial diameter […]

Posters (1)

Atrial Fibrillation
Atrial Fibrillation
78/The ganglionated plexuses and their electrophysiological phenomena – Evidence for their role in pathogenesis of atrial fibrillation
MY Kim (Presenting Author) - Myocardial Function, Imperial College London, London, UK; B Sandler - Myocardial Function, Imperial College London, London, UK; KM Leong - Imperial College NHS Trust, London, UK; V Luther - Imperial College NHS Trust, London, UK; L Malcolme-Lawes - Imperial College NHS Trust, London, UK; MB Sikkel - Imperial College NHS Trust, London, UK; A Sohaib - Imperial College NHS Trust, London, UK; M Koa-Wing - Imperial College NHS Trust, London, UK; FS Ng - Myocardial Function, Imperial College London, London, UK; NA Qureshi - Imperial College NHS Trust, London, UK; ZI Whinnett - Imperial College NHS Trust, London, UK; DR Tomlinson - Derriford Hospital, University Hospitals Plymouth NHS Trust, Plymouth, UK; RJ Hunter - St Bartholomew’s Hospital, Barts Health NHS Trust, London, UK; NS Peters - Myocardial Function, Imperial College London, London, UK; PB Lim - Imperial College NHS Trust, London, UK; NWF Linton - Imperial College NHS Trust, London, UK; P Kanagaratnam - Imperial College NHS Trust, London, UK

Introduction: The left atrial ganglionated plexus (GP) are implicated in atrial fibrillation (AF) and can be located by high frequency endocardial stimulation (HFS). In order to understand the role of GP in AF pathogenesis, we report reproducible electrophysiological phenomena seen during GP stimulation and ablation. Methods: Ninety-five patients with paroxysmal AF with or without previous pulmonary vein […]

Arrhythmia
Arrhythmia
82/Insights from a real-world assessment of response to cardiac resynchronisation therapy in patients with right bundle branch block
V Mehta (Presenting Author) - St Bartholomew’s Hospital, London, UK; F Bangash - St Bartholomew’s Hospital, London, UK; C Monkhouse - St Bartholomew’s Hospital, London, UK; S Ahsan - St Bartholomew’s Hospital, London, UK; R Ang - St Bartholomew’s Hospital, London, UK; A Chow - St Bartholomew’s Hospital, London, UK; M Dhinoja - St Bartholomew’s Hospital, London, UK; M Earley - St Bartholomew’s Hospital, London, UK; F Farooqi - St Bartholomew’s Hospital, London, UK; C Hayward - St Bartholomew’s Hospital, London, UK; R Hunter - St Bartholomew’s Hospital, London, UK; F Khan - St Bartholomew’s Hospital, London, UK; P Lambiase - St Bartholomew’s Hospital, London, UK; M Lowe - St Bartholomew’s Hospital, London, UK; P Moore - St Bartholomew’s Hospital, London, UK; R Providencia - St Bartholomew’s Hospital, London, UK; E Rowland - St Bartholomew’s Hospital, London, UK; O Segal - St Bartholomew’s Hospital, London, UK; A Sohaib - St Bartholomew’s Hospital, London, UK; R Schilling - St Bartholomew’s Hospital, London, UK; S Sporton - St Bartholomew’s Hospital, London, UK; M Thomas - St Bartholomew’s Hospital, London, UK; A Muthumala - St Bartholomew’s Hospital, London, UK

Introduction: Cardiac resynchronisation therapy (CRT) is an effective treatment for patients with severe heart failure and a wide QRS duration (QRSd). This is particularly the case for patients with left bundle branch block (LBBB), where it is a class I recommendation by the European Society of Cardiology (ESC). In individuals with right bundle branch block (RBBB), […]

Arrhythmia
Arrhythmia
94/The WiSE-CRT system leads to left ventricular remodelling and improved symptoms in patients who are classified as non-responders to conventional CRT
B Sidhu (Presenting Author) - Kings College London, London, UK; TR Betts - Oxford University Hospitals NHS Foundation Trust, Oxford, UK; S James - The James Cook Hospital, Middlesbrough, UK; A Turley - James Cook Hospital, Middlesbrough, UK; C Butter - Immanuel Klinikum Bernau Herzzentrum Brandenburg, Germany; M Seifert - Immanuel Klinikum Bernau Herzzentrum Brandenburg, Germany; LVA Boersma - St Antonius Ziekenhuis, The Netherlands; S Riahi - Aalborg University Hospital, Denmark; P Neuzil - Na Homolce Hospital, Czech Republic; M Biffi - Policlinico S’Orsola, Bologna, Italy; I Diemberger - Policlinico S’Orsola, Bologna, Italy; M Arnold - University Hospital Erlangen, Germany; DT Keane - St. Vincent’s University Hospital, Dublin, Ireland; P Defaye - St. Vincent’s University Hospital, Dublin, Ireland; JC Deharo - CHU Grenoble Alpes, France; R Schilling - Barts Hospital, London, UK; A Chow - Barts Hospital, London, UK; CA Rinaldi - Kings College London, London, UK

Background: Cardiac resynchronisation therapy (CRT) reduces patient morbidity and mortality, however, nearly 30–40% of patients fail to respond. The management of these so-called CRT non-responders (who remain symptomatic and have no evidence of reverse left ventricular (LV) remodelling following epicardial CRT) remains limited with few treatment options available. Studies have shown that endocardial LV pacing is […]

Arrhythmia, Devices, Interventional Cardiology
Arrhythmia, Devices, Interventional Cardiology
102/Symptomatic venous thromboembolism after catheter ablation
D Shah (Presenting Author) - Department of Cardiology, Manchester University Foundation Trust, Manchester, UK; C Bruce - Department of Cardiology, Manchester University Foundation Trust, Manchester, UK; K Saraf - Centre for Cardiac Research, University of Manchester; Department of Cardiology, Manchester University Foundation Trust, Manchester, UK; S Chowdhury - Centre for Cardiac Research, University of Manchester; Department of Cardiology, Manchester University Foundation Trust, Manchester, UK; G Kirkwood - Sheffield Teaching Hospital, Sheffield, UK; J Thatchil - Department of Cardiology, Manchester University Foundation Trust, Manchester, UK; D Fox - Department of Cardiology, Manchester University Foundation Trust, Manchester, UK; C McCollum - Centre for Cardiac Research, University of Manchester; Department of Cardiology, Manchester University Foundation Trust, Manchester, UK; GM Morris - Centre for Cardiac Research, University of Manchester; Department of Cardiology, Manchester University Foundation Trust, Manchester, UK,

Background: Catheter ablation is a routine and effective treatment for supraventricular tachycardia (SVT). Femoral venous catheterisation presents an increased risk of venous thromboembolism (VTE). VTE can result in excess patient morbidity and mortality; however, data is limited regarding the incidence of post-procedure VTE in patients undergoing ablation. Current data comes from retrospective database studies. We […]

Arrhythmia
Arrhythmia
108/Relationship between left atrial wall thickness left atrial morphology and stroke history in the SCOT-HEART trial
M Decroocq - Université Paris Diderot, UFR Medicine, Paris, France, Paris; RK Mukherjee (Presenting Author) - King’s College London, London, UK; J Whitaker - King’s College London, London, UK; I Sim - King’s College London, London, UK; L O’Neill - King’s College London, London, UK; D O’Hare - King’s College London, London, UK; R Rajani - Guy’s and St Thomas’ Hospital, London, UK; A Bhalla - Guy’s and St Thomas’ Hospital, London, UK; J Birns - Guy’s and St Thomas’ Hospital, London, UK; M O’Neill - King’s College London, London, UK; MC Williams - University of Edinburgh/British Heart Foundation Centre for Cardiovascular Science, Edinburgh, United Kingdom, Edinburgh, Scotland, UK; DE Newby - University of Edinburgh/British Heart Foundation Centre for Cardiovascular Science, Edinburgh, United Kingdom, Edinburgh, Scotland, UK; S Niederer - King’s College London, London, UK; SE Williams - King’s College London, London, UK

Background: Detection of atrial fibrillation after stroke may be challenging and often requires prolonged monitoring. Atrial fibrillation is known to be associated with imaging markers of atrial structural remodelling such as left atrial dilatation and fibrosis. However, assessment of atrial morphology is challenging with previous approaches lacking standardisation. Objective: To determine if left atrial morphological […]

Arrhythmia
Arrhythmia
128/Generator changes in complex high energy devices – How risky is it in the long term?
M Zuhair (Presenting Author) - Royal Brompton and Harefield NHS Foundation Trust, London, UK; C Butcher - Royal Brompton and Harefield NHS Foundation Trust, London, UK; N Jayaratne - Royal Brompton and Harefield NHS Foundation Trust, London, UK; D Chhatralia - Royal Brompton and Harefield NHS Foundation Trust, London, UK; E Dhillon - Royal Brompton and Harefield NHS Foundation Trust, London, UK; E Cantor - Royal Brompton and Harefield NHS Foundation Trust, London, UK; N Margerison - Royal Brompton and Harefield NHS Foundation Trust, London, UK; L Edmondson - Royal Brompton and Harefield NHS Foundation Trust, London, UK; S Haldar - Royal Brompton and Harefield NHS Foundation Trust, London, UK; W Hussain - Royal Brompton and Harefield NHS Foundation Trust, London, UK; T Wong - Royal Brompton and Harefield NHS Foundation Trust, London, UK; D Jones - Royal Brompton and Harefield NHS Foundation Trust, London, UK; MJ Mason - Royal Brompton and Harefield NHS Foundation Trust, London, UK; R Lane - Royal Brompton and Harefield NHS Foundation Trust, London, UK

Background: Internal cardioverter defibrillator (ICD) and cardiac resynchronisation defibrillator (CRTD) implantation rates have increased significantly. As these escalate, and patient survival improves, so has the need for generator change (GC), which carries important inherent risk. Objective: To assess the effect of GC on mortality in patients with ICD and CRTD. Methods: Consecutive patients implanted in […]

Posters (2)

Devices, Interventional Cardiology
Devices, Interventional Cardiology
134/Significant reduction in sedation related events following implementation of new catheter laboratory sedation guidelines at Imperial College Healthcare NHS Trust
LC Malcolme-Lawes (Presenting Author) - Imperial College Healthcare NHS Trust, London, UK; V Tsampasian - Imperial College Healthcare NHS Trust, London, UK; V Luther - Imperial College Healthcare NHS Trust, London, UK; K Leong - Imperial College Healthcare NHS Trust, London, UK; PB Lim - Imperial College Healthcare NHS Trust, London, UK; N Linton - Imperial College Healthcare NHS Trust, London, UK; N Qureshi - Imperial College Healthcare NHS Trust, London, UK; FS Ng - Imperial College Healthcare NHS Trust, London, UK; M Koa-Wing - Imperial College Healthcare NHS Trust, London, UK; D Lefroy - Imperial College Healthcare NHS Trust, London, UK; NS Peters - Imperial College Healthcare NHS Trust, London, UK; A Varnava - Imperial College Healthcare NHS Trust, London, UK; P Kanagaratnam - Imperial College Healthcare NHS Trust, London, UK; ZI Whinnett - Imperial College Healthcare NHS Trust, London, UK

Introduction: New safe sedation guidelines were introduced by the Academy of Royal Colleges in 2013. We subsequently designed and introduced a new protocol to guide the use of conscious sedation in our electrophysiology labs in 2014. The protocol included pre-procedural risk assessment, routine capnography monitoring, protocolised prescribing of midazolam and fentanyl, dose-up titration guidance and […]

Arrhythmia
Arrhythmia
147/Implantable cardiac monitors (ICM) – 3-year quality assurance audit outcomes of an innovative allied professional led service
A Rice (Presenting Author) - South Tees NHS Foundation Trust - James Cook University Hospital, Middlesbrough, UK; A Theakston - South Tees NHS Foundation Trust - James Cook University Hospital, Middlesbrough, UK; J Mudd - South Tees NHS Foundation Trust - James Cook University Hospital, Middlesbrough, UK; J Owen - South Tees NHS Foundation Trust - James Cook University Hospital, Middlesbrough, UK; C Wyatt - South Tees NHS Foundation Trust - James Cook University Hospital, Middlesbrough, UK; A Hall - South Tees NHS Foundation Trust - James Cook University Hospital, Middlesbrough, UK; A Bennett - South Tees NHS Foundation Trust - James Cook University Hospital, Middlesbrough, UK; K Potts - South Tees NHS Foundation Trust - James Cook University Hospital, Middlesbrough, UK; AJ Turley - South Tees NHS Foundation Trust - James Cook University Hospital, Middlesbrough, UK; NJ Linker - South Tees NHS Foundation Trust - James Cook University Hospital, Middlesbrough, UK

Background/objective: A cardiac rhythm management (CRM) allied professional service was developed in 2015 utilising Medtronic Reveal LINQ ICM devices and advanced remote monitoring technology. Advances in technology have allowed for implantation in a procedure room by CRM specialist nurses and a cardiac physiologist. Following implant, all patients received remote monitoring equipment and access to a […]

Atrial Fibrillation
Atrial Fibrillation
148/Canadian Community Stroke Prevention Study – Emergency Department (C-CUSP ED) – Optimising the uptake of oral anticoagulation in eligible patients with atrial fibrillation presenting to the emergency department
D Banner (Presenting Author) - University of Northern British Columbia, Prince George, BC, Canada; R Parkash - Queen Elizabeth II Health Sciences Centre, Halifax, NS, Canada; K Magee - Queen Elizabeth II Health Sciences Centre, Halifax, NS, Canada; M McMullen - Queen Elizabeth II Health Sciences Centre, Halifax, NS, Canada; M Clory - Queen Elizabeth II Health Sciences Centre, Halifax, NS, Canada; M D’Astous - George-Dumont Hospital, Moncton, NB, Canada; M Robichaud - George-Dumont Hospital, Moncton, NB, Canada; G Andolfatto - Lion’s Gate Hospital, Vancouver, BC, Canada; B Read - Ottawa Hospital General Campus, Ottawa, ON, Canada; S Wang - Population Health Research Institute, Hamilton, ON, Canada; L Thabane - Population Health Research Institute, Hamilton, ON, Canada; C Atzema - Sunnybrook Health Sciences Centre, Toronto, ON, Canada; P Dorian - St. Michael’s Hospital, Toronto, ON, Canada; J Kaczorowski - University of Montreal, Montreal, QC, Canada; R Nieuwlaat - Population Health Research Institute, Hamilton, ON, Canada; N Ivers - University of Toronto, Toronto, ON, Canada; T Huynh - McGill University, Montreal, QC, Canada; J Curran - Queen Elizabeth II Health Sciences Centre, Halifax, NS, Canada; D Kandola - University of Northern British Columbia, Prince George, BC, Canada; I Graham - University of Ottawa, Ottawa, ON, Canada; S Connolly - Population Health Research Institute, Hamilton, ON, Canada; J Healey - Population Health Research Institute, Hamilton, ON, Canada

Introduction: Oral anticoagulation (OAC) is known to reduce stroke risk by 60–80% in patients with Atrial Fibrillation (AF), however, only 50% of eligible patients receive OAC. While many AF patients present to the ED, few are offered OAC. This represents a significant gap in AF care. Methods: This was a multi-centre, pragmatic, three-phase before-after study, […]

Arrhythmia, Interventional Cardiology
Arrhythmia, Interventional Cardiology
159/Early experience using the advisor HD grid multielectrode mapping catheter for post-ablation atrial arrhythmias
A Creta (Presenting Author) - Barts Heart Centre, St Bartholomew’s Hospital, London, UK; J William - Abbott, London, UK; N Ahluwalia - Barts Heart Centre, St Bartholomew’s Hospital, London, UK; N Papageorgiou - Barts Heart Centre, St Bartholomew’s Hospital, London, UK; A Singal - Barts Heart Centre, St Bartholomew’s Hospital, London, UK; M Lowe - Barts Heart Centre, St Bartholomew’s Hospital, London, UK; P Waddingham - Barts Heart Centre, St Bartholomew’s Hospital, London, UK; R Ang - Barts Heart Centre, St Bartholomew’s Hospital, London, UK; R Till - Barts Heart Centre, St Bartholomew’s Hospital, London, UK; V Ezzat - Barts Heart Centre, St Bartholomew’s Hospital, London, UK; S Ahsan - Barts Heart Centre, St Bartholomew’s Hospital, London, UK; R Providencia - Barts Heart Centre, St Bartholomew’s Hospital, London, UK; S Sporton - Barts Heart Centre, St Bartholomew’s Hospital, London, UK; M Dhinoja - Barts Heart Centre, St Bartholomew’s Hospital, London, UK; M Finlay - Barts Heart Centre, St Bartholomew’s Hospital, London, UK; RJ Schilling - Barts Heart Centre, St Bartholomew’s Hospital, London, UK; PD Lambiase - Barts Heart Centre, St Bartholomew’s Hospital, London, UK; AW Chow - Barts Heart Centre, St Bartholomew’s Hospital, London, UK

Introduction: Post ablation atrial tachycardias can be complex and challenging. The Advisor HD Grid multielectrode catheter (Abbott, St Paul, MN, USA) is a high-density mapping catheter developed for mapping complex re-entrant atrial arrhythmias independent of activation wavefronts to electrode orientation, reducing the so-called “bipolar blindness”. The aim of this study was to compare the mapping […]

Arrhythmia
Arrhythmia
170/Ripple mapping guided ablation of conduction channel entrances with loss of latest potentials as an endpoint for substrate modification for ischaemic ventricular tachycardia
GD Katritsis (Presenting Author) – Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, UK; V Luther – Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, UK; M Koa-Wing – Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, UK; N Qureshi – Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, UK; PB Lim – Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, UK; Z Whinnett – Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, UK; D Lefroy – Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, UK; N Linton – Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, UK; NS Peters – Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, UK; P Kanagaratnam – Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, UK

Introduction: Surviving myocardium within ischaemic ventricular scar can form a substrate for electrical re-entry. Several approaches have been described for ”substrate modification” of this surviving myocardium; targeting late abnormal ventricular activities (LAVAs) or late potentials (LP), scar homogenisation and scar encirclement amongst others. We have previously used ripple mapping (RM) to demonstrate distinct channels of surviving […]

Atrial Fibrillation
Atrial Fibrillation
171/Audit on catheter ablation using the cryoballoon for persistent atrial fibrillation – Comparison with radiofrequency catheter ablation on procedural characteristics arrhythmia recurrence and symptom improvement in a UK tertiary centre
SH Man (Presenting Author) – Glenfield Hospital, University of Leicester, Leicester, UK; M Tawil – Glenfield Hospital, University Hospitals of Leicester, Leicester, UK; UK Ihekwaba – Glenfield Hospital, University Hospitals of Leicester, Leicester, UK; R Dsouza – Glenfield Hospital, University Hospitals of Leicester, Leicester, UK; K Safwan – Glenfield Hospital, University Hospitals of Leicester, Leicester, UK; PJ Stafford – Glenfield Hospital, University Hospitals of Leicester, Leicester, UK; AJ Sandilands – Glenfield Hospital, University Hospitals of Leicester, Leicester, UK; GA Ng – Glenfield Hospital, University Hospitals of Leicester, Leicester, UK; M Lazdam – Golden Jubilee National Hospital, Glasgow, UK; R Somani – Glenfield Hospital, University Hospitals of Leicester, Leicester, UK

Background: Pulmonary vein isolation (PVI) with radiofrequency (RF) catheter ablation is an established treatment for symptomatic persistent atrial fibrillation (AF). Data from the international CRYO4PERSISTENT AF trial had recently demonstrated 61% single-procedural success at 12 months in treating persistent AF with Cryoablation (Cryo) using the Achieve catheter with a Cryoballoon. We propose to conduct a local […]

Arrhythmia
Arrhythmia
174/Comparison of subcutaneous ICD implant techniques at a single centre – pocket between serratus and latissimus dorsi versus sub-serratus implant
LC Malcolme-Lawes (Presenting Author) – Imperial College Healthcare NHS Trust, London, UK; V Tsampasian – Imperial College Healthcare NHS Trust, London, UK; V Luther – Imperial College Healthcare NHS Trust, London, UK; K Leong – Imperial College Healthcare NHS Trust, London, UK; PB Lim – Imperial College Healthcare NHS Trust, London, UK; N Linton – Imperial College Healthcare NHS Trust, London, UK; N Qureshi – Imperial College Healthcare NHS Trust, London, UK; FS Ng – Imperial College Healthcare NHS Trust, London, UK; M Koa-Wing – Imperial College Healthcare NHS Trust, London, UK; D Lefroy – Imperial College Healthcare NHS Trust, London, UK; NS Peters – Imperial College Healthcare NHS Trust, London, UK; A Varnava – Imperial College Healthcare NHS Trust, London, UK; P Kanagaratnam – Imperial College Healthcare NHS Trust, London, UK; ZI Whinnett – Imperial College Healthcare NHS Trust, London, UK

Introduction: Subcutaneous implantable cardio-defibrillators (S-ICDs) can either be implanted in a pocket between latissimus dorsi and serratus anterior muscles or behind the serratus anterior muscle. Both techniques are used by operators at our centre. We performed a retrospective, observational study of outcomes including complications, patient discomfort, aesthetics and device circuit shock impedance to see if any […]

Arrhythmia
Arrhythmia
182/Same-day discharge after SQ-ICD implantation is safe and cost effective
K Fox (Presenting Author) – OhioHealth – Riverside Methodist Hospital, Columbus, OH, USA; D Shah – OhioHealth – Riverside Methodist Hospital, Columbus, OH, USA; J Swinning – OhioHealth – Riverside Methodist Hospital, Columbus, OH, USA; S Billakanty – OhioHealth – Riverside Methodist Hospital, Columbus, OH, USA; N Chopra – OhioHealth – Riverside Methodist Hospital, Columbus, OH, USA; E Fu – OhioHealth – Riverside Methodist Hospital, Columbus, OH, USA; S Nelson – OhioHealth – Riverside Methodist Hospital, Columbus, OH, USA; A Nichols – OhioHealth – Riverside Methodist Hospital, Columbus, OH, USA; G Kidwell – OhioHealth – Riverside Methodist Hospital, Columbus, OH, USA; J Kleman – OhioHealth – Riverside Methodist Hospital, Columbus, OH, USA; S Brown – OhioHealth – Riverside Methodist Hospital, Columbus, OH, USA; J James – OhioHealth – Riverside Methodist Hospital, Columbus, OH, USA; V Murnane – OhioHealth – Riverside Methodist Hospital, Columbus, OH, USA; K Nichols – OhioHealth – Riverside Methodist Hospital, Columbus, OH, USA; A Robinson – OhioHealth – Riverside Methodist Hospital, Columbus, OH, USA; A Amin (Presenting Author) – OhioHealth – Riverside Methodist Hospital, Columbus, OH, USA

Background: The feasibility and safety of same day discharge for transvenous ICD systems is well established. Subcutaneous implantable cardioverter defibrillators (SQ-ICD) are increasingly being implanted as an alternative to transvenous ICDs. The feasibility as well as time and cost savings associated with same day discharge after implantation of these devices needs to be investigated. Purpose: To evaluate […]

Arrhythmia
Arrhythmia
187/Activation-repolarisation dynamics for the delineation of the arrhythmogenic substrate of ventricular tachycardia – Formal evaluation of the re-entry vulnerability index
M Orini (Presenting Author) – University College London, London, UK; AJ Graham – Barts Heart Centre, London, UK; NT Srinivasan – Barts Heart Centre, London, UK; FO Campos – King’s College London, London, UK; BM Hanson – UCL, London, UK; A Chow – Barts Heart Centre, London, UK; RJ Hunter – Barts Heart Centre, London, UK; RJ Schilling – Barts Heart Centre, London, UK; M Finlay – Barts Heart Centre, London, UK; MJ Earley – Barts Heart Centre, London, UK; S Sporton – Barts Heart Centre, London, UK; M Dhinoja – Barts Heart Centre, London, UK; M Lowe – Barts Heart Centre, London, UK; B Porter – Guys and St Thomas’ Hospital, London, UK; N Child – Guys and St Thomas’ Hospital, London, UK; CA Rinaldi – Guys and St Thomas’ Hospital, London, UK; J Gill – Guys and St Thomas’ Hospital, London, UK; M Bishop – King’s College London, London, UK; P Taggart – UCL, London, UK; PD Lambiase – Barts Heart Centre, London, UK

Aim: Recurrence rate of ventricular tachycardia (VT) after catheter ablation remains sub-optimal. The re-entry vulnerability index (RVI) is a metric combining activation and repolarisation timings designed to identify sites critical for re-entrant arrhythmia initiation without inducing VT. This study uses high-density mapping to test its capability of identifying VT sites of origin (VTSO). Methods: Eighteen VT […]

Arrhythmia
Arrhythmia
188/A new near-zero fluoroscopy technique for cardiac electronic device implantation – A validation study
A Creta (Presenting Author) – Barts Heart Centre, St Bartholomew’s Hospital, London, UK; M Finlay – Barts Heart Centre, St Bartholomew’s Hospital, London, UK; M Dhinoja – Barts Heart Centre, St Bartholomew’s Hospital, London, UK; R Providencia – Barts Heart Centre, St Bartholomew’s Hospital, London, UK; C Monkhouse – Barts Heart Centre, St Bartholomew’s Hospital, London, UK; S Sporton – Barts Heart Centre, St Bartholomew’s Hospital, London, UK; A Chow – Barts Heart Centre, St Bartholomew’s Hospital, London, UK; MJ Earley – Barts Heart Centre, St Bartholomew’s Hospital, London, UK; RJ Hunter – Barts Heart Centre, St Bartholomew’s Hospital, London, UK; M Lowe – Barts Heart Centre, St Bartholomew’s Hospital, London, UK;A Muthumala – Barts Heart Centre, St Bartholomew’s Hospital, London, UK; PD Lambiase – Barts Heart Centre, St Bartholomew’s Hospital, London, UK; RJ Schilling – Barts Heart Centre, St Bartholomew’s Hospital, London, UK

Introduction: There is growing concern regarding radiation hazards for both patients and staff. The aim of this study was to investigate the efficacy and safety of a new low-dose fluoroscopy technique for cardiac electronic device implantation, and compare it with a conventional approach. Methods: Low-dose fluoroscopy technique: Radiation exposure during fluoroscopy is directly proportional to the […]

Abstracts - Paediatric Session

Atrial Fibrillation
Atrial Fibrillation
206/Aetiology and efficacy of atrial fibrillation ablation in young adults
RY Zhang (Presenting Author) – Royal Papworth Hospitals NHS Foundation Trust, Cambridge, UK; IT Fazmin – Royal Papworth Hospitals NHS Foundation Trust, Cambridge, UK; A Porto – Royal Papworth Hospitals NHS Foundation Trust, Cambridge, UK; K Divulwewa – Royal Papworth Hospitals NHS Foundation Trust, Cambridge, UK; A Reddy – Royal Papworth Hospitals NHS Foundation Trust, Cambridge, UK; J Gonzalez-Panizo – Royal Papworth Hospitals NHS Foundation Trust, Cambridge, UK; B di Nubila – Royal Papworth Hospitals NHS Foundation Trust, Cambridge, UK; MF Mausa – Royal Papworth Hospitals NHS foundation trust, Cambridge, UK; S Agarwal – Royal Papworth Hospitals NHS Foundation Trust, Cambridge, UK; D Begley – Royal Papworth Hospitals NHS foundation trust, Cambridge, UK; S Fynn – Royal Papworth Hospitals NHS foundation trust, Cambridge, UK; A Grace – Royal Papworth Hospitals NHS Foundation Trust, Cambridge, UK; P Heck – Royal Papworth Hospitals NHS foundation trust, Cambridge, UK; G Mellor – Royal Papworth Hospitals NHS foundation trust, Cambridge, UK; M Virdee – Royal Papworth Hospitals NHS foundation trust, Cambridge, UK; CA Martin – Royal Papworth Hospitals NHS Foundation Trust, Cambridge, UK

Introduction: Little is known regarding the aetiology or outcome of atrial fibrillation (AF) occurring in young adults. This retrospective analysis was performed to explore the demographics and efficacy of AF ablation in this population. Methods: Patients were included who had undergone ≥1 AF ablation under the age of 40 between 2006–18. Recurrence, defined as return of […]

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