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Margulescu AD, Thomas DE, Awadalla M, Shah P, Khurana A, Aldalati O, Obaid DR, Chase AJ, Smith D. Prevalence and progression of LV dysfunction and dyssynchrony in patients with new-onset LBBB post TAVR. CARDIOVASCULAR REVASCULARIZATION MEDICINE 2024:S1553-8389(24)00154-4. [PMID: 38604832 DOI: 10.1016/j.carrev.2024.04.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 04/04/2024] [Accepted: 04/04/2024] [Indexed: 04/13/2024]
Abstract
BACKGROUND The impact of new-onset left bundle branch block (N-LBBB) developing after Transcatheter Aortic Valve Replacement (TAVR) on cardiac function and mechanical dyssynchrony is not well defined. METHODS We retrospectively screened all patients who underwent TAVR in our centre between Oct 2018 and Sept 2021 (n = 409). We identified 38 patients with N-LBBB post-operatively (of which 28 were persistent and 10 were transient), and 17 patients with chronic pre-existent LBBB (C-LBBB). We excluded patients requiring pacing post TAVR. For all groups, we retrospectively analysed stored echocardiograms at 3 time points: before TAVR (T0), early after TAVR (T1, 1.2 ± 1.1 days), and late follow-up (T2, 1.5 ± 0.8 years), comparing LV mass and volumes, indices of LV function (LV ejection fraction, LVEF; global longitudinal strain, GLS), and mechanical dyssynchrony indices (systolic stretch index, severity of septal flash). RESULTS At baseline (T0), C-LBBB had worse cardiac function, and larger LV volumes and LV mass, compared with patients with N-LBBB. At T1, N-LBBB resulted in mild dyssynchrony and decreased LVEF and GLS. Dyssynchrony progressed at T2 in persistent N-LBBB but not C-LBBB. In both groups however, LVEF remained stable at T2, although individual response was variable. Patients with better LVEF at baseline demonstrated a higher proportion of developing LBBB-induced LV dysfunction at T2. Lack of improvement of LVEF immediately after TAVR predicted deteriorating LVEF at T2. In transient LBBB, cardiac function and most dyssynchrony indices returned to baseline. CONCLUSIONS N-LBBB after TAVR results in an immediate reduction of cardiac function, in spite of only mild dyssynchrony. When LBBB persists, patients with better cardiac function before TAVR are more likely to have LBBB-induced LV dysfunction after TAVR.
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Affiliation(s)
- Andrei D Margulescu
- Department of Cardiology, Morriston Regional Cardiac Centre, Morriston Hospital, Heol Maes Eglwys, Swansea SA6 6NL, UK.
| | - Dewi E Thomas
- Department of Cardiology, Morriston Regional Cardiac Centre, Morriston Hospital, Heol Maes Eglwys, Swansea SA6 6NL, UK; Swansea University Medical School, Singleton Park, Swansea SA2 8PP, UK.
| | - Magid Awadalla
- Mater Private Network Hospital, Eccles Street, Dublin 7 D07 WKW8, Ireland.
| | - Parin Shah
- Department of Cardiology, Morriston Regional Cardiac Centre, Morriston Hospital, Heol Maes Eglwys, Swansea SA6 6NL, UK.
| | - Ayush Khurana
- Department of Cardiology, Morriston Regional Cardiac Centre, Morriston Hospital, Heol Maes Eglwys, Swansea SA6 6NL, UK.
| | - Omar Aldalati
- Department of Cardiology, University Hospital of Wales, Heath Park, Cardiff CF14 4XW, UK.
| | - Daniel R Obaid
- Department of Cardiology, Morriston Regional Cardiac Centre, Morriston Hospital, Heol Maes Eglwys, Swansea SA6 6NL, UK; Swansea University Medical School, Singleton Park, Swansea SA2 8PP, UK.
| | - Alexander J Chase
- Department of Cardiology, Morriston Regional Cardiac Centre, Morriston Hospital, Heol Maes Eglwys, Swansea SA6 6NL, UK; Swansea University Medical School, Singleton Park, Swansea SA2 8PP, UK.
| | - David Smith
- Department of Cardiology, Morriston Regional Cardiac Centre, Morriston Hospital, Heol Maes Eglwys, Swansea SA6 6NL, UK; Swansea University Medical School, Singleton Park, Swansea SA2 8PP, UK.
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Calle S, Coeman M, Demolder A, Philipsen T, Kayaert P, De Buyzere M, Timmermans F, De Pooter J. Aortic valve implantation-induced conduction block as a framework towards a uniform electrocardiographic definition of left bundle branch block. Neth Heart J 2021; 29:643-653. [PMID: 33929708 PMCID: PMC8630173 DOI: 10.1007/s12471-021-01565-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/17/2021] [Indexed: 11/25/2022] Open
Abstract
Introduction New-onset left bundle branch block (LBBB) following transcatheter or surgical aortic valve replacement (LBBBAVI) implies a proximal pathogenesis of LBBB. This study compares electrocardiographic characteristics and concordance with LBBB definitions between LBBBAVI and non-procedure-induced LBBB controls (LBBBcontrol). Methods All LBBBAVI patients at Ghent University Hospital between 2013 and 2019 were enrolled in the study. LBBBAVI patients were matched for age, sex, ischaemic heart disease and ejection fraction to LBBBcontrol patients in a 1:2 ratio. For inclusion, a non-strict LBBB definition was used (QRS duration ≥ 120 ms, QS or rS in V1, absence of Q waves in V5-6). Electrocardiograms were digitally analysed and classified according to three LBBB definitions: European Society of Cardiology (ESC), Strauss and American Heart Association (AHA). Results A total of 177 patients (59 LBBBAVI and 118 LBBBcontrol) were enrolled in the study. LBBBAVI patients had more lateral QRS notching/slurring (100% vs 85%, p = 0.001), included a higher percentage with a QRS duration ≥ 130 ms (98% vs 86%, p = 0.007) and had a less leftward oriented QRS axis (−15° vs −30°, p = 0.013) compared to the LBBBcontrol group. ESC and Strauss criteria were fulfilled in 100% and 95% of LBBBAVI patients, respectively, but only 18% met the AHA criteria. In LBBBcontrol patients, concordance with LBBB definitions was lower than in the LBBBAVI group: ESC 85% (p = 0.001), Strauss 68% (p < 0.001) and AHA 7% (p = 0.035). No differences in electrocardiographic characterisation or concordance with LBBB definitions were observed between LBBBAVI and LBBBcontrol patients with lateral QRS notching/slurring. Conclusion Non-uniformity exists among current LBBB definitions concerning the detection of proximal LBBB. LBBBAVI may provide a framework for more consensus on defining proximal LBBB. Supplementary Information The online version of this article (10.1007/s12471-021-01565-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- S Calle
- Department of Cardiology, University Hospital Ghent, Ghent, Belgium.
| | - M Coeman
- Department of Cardiology, University Hospital Ghent, Ghent, Belgium
| | - A Demolder
- Department of Cardiology, University Hospital Ghent, Ghent, Belgium
| | - T Philipsen
- Department of Cardiac Surgery, University Hospital Ghent, Ghent, Belgium
| | - P Kayaert
- Department of Cardiology, University Hospital Ghent, Ghent, Belgium
| | - M De Buyzere
- Department of Cardiology, University Hospital Ghent, Ghent, Belgium
| | - F Timmermans
- Department of Cardiology, University Hospital Ghent, Ghent, Belgium
| | - J De Pooter
- Department of Cardiology, University Hospital Ghent, Ghent, Belgium
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Wang Y, Cai L, Luo X, Ying W, Gao H. Simulation of action potential propagation based on the ghost structure method. Sci Rep 2019; 9:10927. [PMID: 31358816 PMCID: PMC6662858 DOI: 10.1038/s41598-019-47321-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Accepted: 07/15/2019] [Indexed: 12/30/2022] Open
Abstract
In this paper, a ghost structure (GS) method is proposed to simulate the monodomain model in irregular computational domains using finite difference without regenerating body-fitted grids. In order to verify the validity of the GS method, it is first used to solve the Fitzhugh-Nagumo monodomain model in rectangular and circular regions at different states (the stationary and moving states). Then, the GS method is used to simulate the propagation of the action potential (AP) in transverse and longitudinal sections of a healthy human heart, and with left bundle branch block (LBBB). Finally, we analyze the AP and calcium concentration under healthy and LBBB conditions. Our numerical results show that the GS method can accurately simulate AP propagation with different computational domains either stationary or moving, and we also find that LBBB will cause the left ventricle to contract later than the right ventricle, which in turn affects synchronized contraction of the two ventricles.
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Affiliation(s)
- Yongheng Wang
- NPU-UoG International Cooperative Lab for Computation and Application in Cardiology, Northwestern Polytechnical University, Xi'an, 710129, China.
| | - Li Cai
- NPU-UoG International Cooperative Lab for Computation and Application in Cardiology, Northwestern Polytechnical University, Xi'an, 710129, China. .,Xi'an Key Laboratory of Scientific Computation and Applied Statistics, Northwestern Polytechnical University, Xi'an, 710129, China.
| | - Xiaoyu Luo
- School of Mathematics and Statistics, University of Glasgow, Glasgow, G12 8QQ, UK
| | - Wenjun Ying
- Zhiyuan College, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Hao Gao
- School of Mathematics and Statistics, University of Glasgow, Glasgow, G12 8QQ, UK
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His-Bundle Pacing in a Patient with Transcatheter Aortic Valve Implantation-Induced Left Bundle Branch Block. Case Rep Cardiol 2018; 2018:4606271. [PMID: 30210877 PMCID: PMC6126070 DOI: 10.1155/2018/4606271] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 07/24/2018] [Accepted: 08/05/2018] [Indexed: 11/17/2022] Open
Abstract
Transcatheter aortic valve implantation (TAVI) is an effective intervention for severe aortic stenosis in patients at intermediate or high surgical risk, but damage to the native conduction system such as left bundle branch block (LBBB) may offset its benefits. New onset LBBB is associated with a higher risk of cardiovascular morbidity and mortality. His-bundle pacing (HBP) may be useful to treat TAVI-induced LBBB but has yet to be reported. We present the case of a 76-year-old man with severe symptomatic aortic stenosis treated with TAVI. His preoperative electrocardiogram showed sinus rhythm with a narrow QRS complex. Insertion of a CoreValve Evolut R transcatheter aortic valve was uneventful apart from the development of LBBB with a long PR interval. A dual-lead DDD pacemaker was implanted via the left cephalic vein on the following day. HV was mildly prolonged at 60 ms. Capture of the proximal His restored AV synchrony without correction of LBBB. Repositioning of the lead with capture of the left bundle branch enabled complete ventricular resynchronisation with a single lead. Our case demonstrates that LBBB in the setting of TAVI may be corrected by HBP.
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Nguyên UC, Verzaal NJ, van Nieuwenhoven FA, Vernooy K, Prinzen FW. Pathobiology of cardiac dyssynchrony and resynchronization therapy. Europace 2018; 20:1898-1909. [DOI: 10.1093/europace/euy035] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Accepted: 02/16/2018] [Indexed: 02/04/2023] Open
Affiliation(s)
- Uyên Châu Nguyên
- Department of Physiology, Cardiovascular Research Institute Maastricht, Universiteitssingel 50, ER Maastricht, The Netherlands
- Department of Cardiology, Cardiovascular Research Institute Maastricht, Universiteitssingel 50, ER Maastricht, The Netherlands
| | - Nienke J Verzaal
- Department of Physiology, Cardiovascular Research Institute Maastricht, Universiteitssingel 50, ER Maastricht, The Netherlands
| | - Frans A van Nieuwenhoven
- Department of Physiology, Cardiovascular Research Institute Maastricht, Universiteitssingel 50, ER Maastricht, The Netherlands
| | - Kevin Vernooy
- Department of Cardiology, Cardiovascular Research Institute Maastricht, Universiteitssingel 50, ER Maastricht, The Netherlands
| | - Frits W Prinzen
- Department of Physiology, Cardiovascular Research Institute Maastricht, Universiteitssingel 50, ER Maastricht, The Netherlands
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Maffessanti F, Wanten J, Potse M, Regoli F, Caputo ML, Conte G, Sürder D, Illner A, Krause R, Moccetti T, Auricchio A, Prinzen FW. The relation between local repolarization and T-wave morphology in heart failure patients. Int J Cardiol 2017; 241:270-276. [DOI: 10.1016/j.ijcard.2017.02.056] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Accepted: 02/15/2017] [Indexed: 11/16/2022]
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Bogossian H, Frommeyer G, Zarse M. Reply: QT interval measurements in patients with left bundle branch block. There is yet more to learn about repolarization. Ann Noninvasive Electrocardiol 2017; 22. [PMID: 28590020 DOI: 10.1111/anec.12475] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Indexed: 11/27/2022] Open
Affiliation(s)
- Harilaos Bogossian
- Märkische Kliniken GmbH, Department of Cardiology and Angiology, Klinikum Luedenscheid, Germany.,Department of Cardiology, University Witten/Herdecke, Witten, Germany
| | - Gerrit Frommeyer
- Division of Electrophysiology, Department of Cardiovascular Medicine, University of Münster, Münster, Germany
| | - Markus Zarse
- Märkische Kliniken GmbH, Department of Cardiology and Angiology, Klinikum Luedenscheid, Germany.,Department of Cardiology, University Witten/Herdecke, Witten, Germany
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