Home > EUROPEAN JOURNAL OF ARRHYTHMIA & ELECTROPHYSIOLOGY – VOLUME 7 SUPPLEMENT 1 – 2021

EUROPEAN JOURNAL OF ARRHYTHMIA & ELECTROPHYSIOLOGY – VOLUME 7 SUPPLEMENT 1 – 2021

The official abstracts from the Heart Rhythm Congress (HRC) 2021:

Young Investigators Competition
Oral Abstracts 1 – Allied & Service Development
Oral Abstracts 1 – AF Clinical
Oral Abstracts 2 – Highest Scoring Abstracts
Oral Abstracts 2 – Arrhythmia Mechanisms
Oral Abstracts 3 – Devices
Oral Abstracts 3 – Mapping & Ablation
Posters
Paediatric

Young Investigators Competition

Arrhythmia
Arrhythmia
1/Cardiac resynchronisation by His bundle and left bundle area pacing compared to biventricular pacing; an acute electrical and haemodynamic study
N Ali (Presenting Author) - National Heart and Lung Institute, Imperial College London, London; AA Miyazawa - National Heart and Lung Institute, Imperial College London, London; AD Arnold - National Heart and Lung Institute, Imperial College London, London; P Kanagratnam - National Heart and Lung Institute, Imperial College London, London; NS Peters - National Heart and Lung Institute, Imperial College London, London; N Qureshi - National Heart and Lung Institute, Imperial College London, London; B Lim - National Heart and Lung Institute, Imperial College London, London; F Ng - National Heart and Lung Institute, Imperial College London, London; N Linton - National Heart and Lung Institute, Imperial College London, London; D Lefroy - National Heart and Lung Institute, Imperial College London, London; A Muthumala - St Bartholomews Hospital and North Middlesex University Hospital, London; MA Tanner - St Richards Hospital, University Hospitals Sussex NHS Foundation Trust, London; D Keene - National Heart and Lung Institute, Imperial College London, London; GD Cole - National Heart and Lung Institute, Imperial College London, London; D Francis - National Heart and Lung Institute, Imperial College London, London; ZA Whinnett - Imperial College London, London

Introduction: Conduction system pacing in the form of His bundle pacing (HBP) can deliver more effective ventricular resynchronization compared to biventricular pacing, which translates to greater acute haemodynamic benefit. Left bundle branch pacing (LBBP) has potential advantages over HBP; capture thresholds are typically lower and it can correct left bundle branch block occurring as a […]

Arrhythmia
Arrhythmia
4/Overcoming delayed right ventricular activation associated with left bundle area pacing by additional right septal capture does not offer any haemodynamic advantage
KA Saqi (Presenting Author) - Imperial College School of Medicine, London; N Ali - National Heart and Lung Institute, Imperial College London, London; AD Arnold- National Heart and Lung Institute, Imperial College London, London; AA Miyazawa - National Heart and Lung Institute, Imperial College London, London; D Keene - National Heart and Lung Institute, Imperial College London, London; NS Peters - National Heart and Lung Institute, Imperial College London, London; P Kanagratnam- National Heart and Lung Institute, Imperial College London, London; N Qureshi - National Heart and Lung Institute, Imperial College London, London; FS Ng - National Heart and Lung Institute, Imperial College London, London; N Linton - National Heart and Lung Institute, Imperial College London, London; D Lefroy - National Heart and Lung Institute, Imperial College London, London; D Francis - National Heart and Lung Institute, Imperial College London, London; PB Lim - National Heart and Lung Institute, Imperial College London, London; GD Cole - National Heart and Lung Institute, Imperial College London, London; MA Tanner - St Richard’s Hospital, University Hospitals Sussex NHS Foundation Trust, London; A Muthumala - St Bartholomew’s Hospital and North Middlesex University Hospital, London; ZI Whinnett - National Heart and Lung Institute, Imperial College London, London

Introduction: Left bundle area pacing is a novel conduction system technique that is rapidly expanding. When the left bundle branch (LBB) alone is captured the 12-lead ECG shows an R prime in lead V1 indicative of delayed right ventricular activation. This is usually seen in unipolar pacing. Right septal myocardial capture can be achieved by […]

Oral Abstracts 1 – Allied & Service Development

Oral Abstracts 1 – AF Clinical

Oral Abstracts 2 – Highest Scoring Abstracts

Arrhythmia
Arrhythmia
23/An active fixation quadripolar left ventricular lead for cardiac resynchronization therapy with a lower displacement and reintervention rate compared to passive fixation quadripolar leads
C Robertson (Presenting Author) - Oxford Heart Centre, John Radcliffe Hospital, Oxford University Hospitals NHS Foundation Trust, Oxford; O Duffey - Oxford Heart Centre, John Radcliffe Hospital, Oxford University Hospitals NHS Foundation Trust, Oxford; P-T Tang - Oxford Heart Centre, John Radcliffe Hospital, Oxford University Hospitals NHS Foundation Trust, Oxford; N Fairhurst - Oxford Heart Centre, John Radcliffe Hospital, Oxford University Hospitals NHS Foundation Trust, Oxford; C Monteiro - Oxford Heart Centre, John Radcliffe Hospital, Oxford University Hospitals NHS Foundation Trust, Oxford; P Green - Oxford Heart Centre, John Radcliffe Hospital, Oxford University Hospitals NHS Foundation Trust, Oxford; J Grogono - Oxford Heart Centre, John Radcliffe Hospital, Oxford University Hospitals NHS Foundation Trust, Oxford; M Davies - Oxford Heart Centre, John Radcliffe Hospital, Oxford University Hospitals NHS Foundation Trust, Oxford; A Lewis - Oxford Heart Centre, John Radcliffe Hospital, Oxford University Hospitals NHS Foundation Trust, Oxford; R Wijesurendra - Oxford Heart Centre, John Radcliffe Hospital, Oxford University Hospitals NHS Foundation Trust, Oxford; J Ormerod - Oxford Heart Centre, John Radcliffe Hospital, Oxford University Hospitals NHS Foundation Trust, Oxford; J Gamble - Oxford Heart Centre, John Radcliffe Hospital, Oxford University Hospitals NHS Foundation Trust, Oxford; M Ginks - Oxford Heart Centre, John Radcliffe Hospital, Oxford University Hospitals NHS Foundation Trust, Oxford; K Rajappan - Oxford Heart Centre, John Radcliffe Hospital, Oxford University Hospitals NHS Foundation Trust, Oxford; Y Bashir - Oxford Heart Centre, John Radcliffe Hospital, Oxford University Hospitals NHS Foundation Trust, Oxford; TR Betts - Oxford Heart Centre, John Radcliffe Hospital, Oxford University Hospitals NHS Foundation Trust, Oxford; N Herring - Oxford Heart Centre, John Radcliffe Hospital, Oxford University Hospitals NHS Foundation Trust, Oxford

Aims: The rate of left ventricular (LV) lead displacement after cardiac resynchronization therapy (CRT) remains high (2–10%) despite recent improvements in lead technology. This post-operative complication often results in an increase in pacing threshold and subsequent loss of ventricular capture, thus negating the benefits of resynchronisation therapy. Under the circumstances where there is loss of […]

Oral Abstracts 2 – Arrhythmia Mechanisms

Arrhythmia
Arrhythmia
26/Frequency and time-frequency domain features from unipolar and omnipolar electrograms identify KATP channel opening in the ex vivo porcine heart
JKC Toh (Presenting Author) - National Heart and Lung Institute, Faculty of Medicine, Imperial College London, London; J Brook - National Heart and Lung Institute, Faculty of Medicine, Imperial College London, London; D Agha-Jaffar - National Heart and Lung Institute, Faculty of Medicine, Imperial College London, London; S Savvidou - National Heart and Lung Institute, Faculty of Medicine, Imperial College London, London; K Ntagiantas - National Heart and Lung Institute, Faculty of Medicine, Imperial College London, London; C Houston - Faculty of Engineering, Imperial College London, London; D Panagopoulos - National Heart and Lung Institute, Faculty of Medicine, Imperial College London, London; N Qureshi - National Heart and Lung Institute, Faculty of Medicine, Imperial College London, London; J Perkins - Royal Veterinary College, University of London, London; FS Ng - National Heart and Lung Institute, Faculty of Medicine, Imperial College London, London; S Harding - National Heart and Lung Institute, Faculty of Medicine, Imperial College London, London; AA Bharath - Faculty of Engineering, Imperial College London, London; NS Peters - National Heart and Lung Institute, Faculty of Medicine, Imperial College London, London; CD Cantwell - Faculty of Engineering, Imperial College London, London; RA Chowdhury - National Heart and Lung Institute, Faculty of Medicine, Imperial College London, London

Clinically, bipolar electrograms (EGMs) are interpreted based on time and voltage characteristics such as amplitude and fractionation index. However, this discards much of the information within the signal. EGMs can also be analysed in the frequency and time-frequency domain. Omnipolar EGMs are a direction-independent form of bipolar EGMs and can be calculated from unipolar EGMs. […]

Oral Abstracts 3 – Mapping & Ablation

Arrhythmia
Arrhythmia
33/Ripple mapping to enhance 3D visualisation of low amplitude, abnormal bipolar electrograms
G Katritsis (Presenting Author) - Imperial College London, London; V Luther - Imperial College London, London; S Jamil-Copley - Nottingham University Hospitals Trust, Nottingham; M Koa-Wing - Imperial College Healthcare NHS Trust, London; Z Whinnett - Imperial College London, London; N Qureshi - Imperial College Healthcare NHS Trust, London; FS Ng - Imperial College London, London; P-B Lim - Imperial College Healthcare NHS Trust, London; L Malcolme-Lawes - Imperial College Healthcare NHS Trust, London; N Cortez-Dias - Hospital De Santa Maria, Lisbon; L Carpinteiro - Hospital De Santa Maria, Lisbon; J de Sousa - Hospital De Santa Maria, Lisbon; R Martin - Newcastle Hospitals NHS Foundation Trust, Newcastle; S Murray - Newcastle Hospitals NHS Foundation Trust, Newcastle; M Das - Newcastle Hospitals NHS Foundation Trust, Newcastle; A Chow - Queen Mary University London and Barts Health NHS Trust, London; NS Peters - Imperial College London, London; NWF Linton - Imperial College London, London; P Kanagaratnam - Imperial College London, London

Background: Ripple mapping (RM) displays the entire morphology of bipolar electrograms in 3D, facilitating identification of low amplitude pathways often obscured by large far-field signals. We tested the hypothesis that RM improves characterisation of low amplitude signals in three subgroups where such signals are common: atrial tachycardia, the LV conduction system and post infarct LV […]

Posters

Arrhythmia
Arrhythmia
43/Cardiac tamponade as a complication of transseptal puncture: associations and operatordependent variables during left atrial ablation at Barts Heart Centre
E Maclean (Presenting Author) - St Bartholomew’s Hospital, London; K Mahtani - St Bartholomew’s Hospital, London; C Butcher - St Bartholomew’s Hospital, London; N Ahluwalia - St Bartholomew’s Hospital, London; M Finlay - St Bartholomew’s Hospital, London; S Honarbakhsh - St Bartholomew’s Hospital, London; A Creta - St Bartholomew’s Hospital, London; A Chow - St Bartholomew’s Hospital, London; V Sawhney - St Bartholomew’s Hospital, London; V Ezzat - St Bartholomew’s Hospital, London; MJ Earley - St Bartholomew’s Hospital, London; M Dhinoja - St Bartholomew’s Hospital, London; S Sporton - St Bartholomew’s Hospital, London; MD Lowe - St Bartholomew’s Hospital, London; PD Lambiase - St Bartholomew’s Hospital, London; F Khan - St Bartholomew’s Hospital, London; SY Ahsan - St Bartholomew’s Hospital, London; RJ Hunter - St Bartholomew’s Hospital, London; RJ Schilling - St Bartholomew’s Hospital, London; O Sega - St Bartholomew’s Hospital, London

Introduction: Cardiac tamponade is a high morbidity complication of transseptal puncture (TSP). We examined the incidence and predictors of TSP-related cardiac tamponade (TRCT) for all patients undergoing left atrial ablation at our centre from 2016-2020. Methods: Patient and procedural variables were extracted retrospectively. Cases of cardiac tamponade were scrutinised to adjudicate TSP culpability. Adjusted multivariate […]

Electrophysiology
Electrophysiology
46/Predictors and clinical outcomes in patients undergoing cardiac resynchronization therapy (CRT) versus CRT upgrade in a real-world tertiary centre
C Sohrabi (Presenting Author) - Electrophysiology Department, Barts Heart Centre, St Bartholomew’s Hospital, London; N Papageorgiou - Electrophysiology Department, Barts Heart Centre, St Bartholomew’s Hospital, London; JSC Del Mundo - Electrophysiology Department, Barts Heart Centre, St Bartholomew’s Hospital, London; N Aziminia - Electrophysiology Department, Barts Heart Centre, St Bartholomew’s Hospital, London; M Finlay - Electrophysiology Department, Barts Heart Centre, St Bartholomew’s Hospital, London; A Creta - Electrophysiology Department, Barts Heart Centre, St Bartholomew’s Hospital, London; PD Lambiase - Electrophysiology Department, Barts Heart Centre, St Bartholomew’s Hospital, London; S Ahsan - Electrophysiology Department, Barts Heart Centre, St Bartholomew’s Hospital, London; P Moore - Electrophysiology Department, Barts Heart Centre, St Bartholomew’s Hospital, London; M Dhinoja - Electrophysiology Department, Barts Heart Centre, St Bartholomew’s Hospital, London; S Sporton - Electrophysiology Department, Barts Heart Centre, St Bartholomew’s Hospital, London; MJ Earley - Electrophysiology Department, Barts Heart Centre, St Bartholomew’s Hospital, London; RJ Schilling - Electrophysiology Department, Barts Heart Centre, St Bartholomew’s Hospital, London; C Hayward - Electrophysiology Department, Barts Heart Centre, St Bartholomew’s Hospital, London; R Providência - Electrophysiology Department, Barts Heart Centre, St Bartholomew’s Hospital, London; R Hunter - Electrophysiology Department, Barts Heart Centre, St Bartholomew’s Hospital, London; AW Chow - Electrophysiology Department, Barts Heart Centre, St Bartholomew’s Hospital, London; A Muthumala - Electrophysiology Department, Barts Heart Centre, St Bartholomew’s Hospital, London

Introduction: The role of pre-implant and intra-procedural parameters on mortality and hospitalisation for heart failure (HHF) in patients undergoing implantation with cardiac resynchronization therapy pacemaker (CRT-P) or defibrillator (CRT-D) versus CRT upgrade is poorly defined. In the present study we aimed to evaluate mortality predictors and clinical outcomes in patients undergoing CRT-P/D versus CRT upgrade. […]

Paediatric

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