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Ross S, Nestaas E, Kongsgaard E, Odland HH, Haland TF, Hopp E, Haugaa KH, Edvardsen T. Septal contraction predicts acute haemodynamic improvement and paced QRS width reduction in cardiac resynchronization therapy. Eur Heart J Cardiovasc Imaging 2020; 21:845-852. [PMID: 31925420 DOI: 10.1093/ehjci/jez315] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2019] [Revised: 11/08/2019] [Accepted: 12/10/2019] [Indexed: 11/13/2022] Open
Abstract
AIMS Three distinct septal contraction patterns typical for left bundle branch block may be assessed using echocardiography in heart failure patients scheduled for cardiac resynchronization therapy (CRT). The aim of this study was to explore the association between these septal contraction patterns and the acute haemodynamic and electrical response to biventricular pacing (BIVP) in patients undergoing CRT implantation. METHODS AND RESULTS Thirty-eight CRT candidates underwent speckle tracking echocardiography prior to device implantation. The patients were divided into two groups based on whether their septal contraction pattern was indicative of dyssynchrony (premature septal contraction followed by various amount of stretch) or not (normally timed septal contraction with minimal stretch). CRT implantation was performed under invasive left ventricular (LV) pressure monitoring and we defined acute CRT response as ≥10% increase in LV dP/dtmax. End-diastolic pressure (EDP) and QRS width served as a diastolic and electrical parameter, respectively. LV dP/dtmax improved under BIVP (737 ± 177 mmHg/s vs. 838 ± 199 mmHg/s, P < 0.001) and 26 patients (68%) were defined as acute CRT responders. Patients with premature septal contraction (n = 27) experienced acute improvement in systolic (ΔdP/dtmax: 18.3 ± 8.9%, P < 0.001), diastolic (ΔEDP: -30.6 ± 29.9%, P < 0.001) and electrical (ΔQRS width: -23.3 ± 13.2%, P < 0.001) parameters. No improvement under BIVP was observed in patients (n = 11) with normally timed septal contraction (ΔdP/dtmax: 4.0 ± 7.8%, P = 0.12; ΔEDP: -8.8 ± 38.4%, P = 0.47 and ΔQRS width: -0.9 ± 11.4%, P = 0.79). CONCLUSION Septal contraction patterns are an excellent predictor of acute CRT response. Only patients with premature septal contraction experienced acute systolic, diastolic, and electrical improvement under BIVP.
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Affiliation(s)
- Stian Ross
- Department of Cardiology, Center for Cardiological Innovation, Oslo University Hospital, Rikshospitalet, Sognsvannveien 20, Pb 4950 Nydalen, 0424 Oslo, Norway.,University of Oslo, Faculty of Medicine, Institute of Clinical Medicine, Pb 1072 Blindern, 0316 Oslo Norway
| | - Eirik Nestaas
- Department of Cardiology, Center for Cardiological Innovation, Oslo University Hospital, Rikshospitalet, Sognsvannveien 20, Pb 4950 Nydalen, 0424 Oslo, Norway.,University of Oslo, Faculty of Medicine, Institute of Clinical Medicine, Pb 1072 Blindern, 0316 Oslo Norway.,Department of Pediatrics, Vestfold Hospital Trust, Pb 2168, 3103 Tonsberg, Norway
| | - Erik Kongsgaard
- Department of Cardiology, Center for Cardiological Innovation, Oslo University Hospital, Rikshospitalet, Sognsvannveien 20, Pb 4950 Nydalen, 0424 Oslo, Norway.,University of Oslo, Faculty of Medicine, Institute of Clinical Medicine, Pb 1072 Blindern, 0316 Oslo Norway
| | - Hans H Odland
- Department of Cardiology, Center for Cardiological Innovation, Oslo University Hospital, Rikshospitalet, Sognsvannveien 20, Pb 4950 Nydalen, 0424 Oslo, Norway.,University of Oslo, Faculty of Medicine, Institute of Clinical Medicine, Pb 1072 Blindern, 0316 Oslo Norway
| | - Trine F Haland
- Department of Cardiology, Center for Cardiological Innovation, Oslo University Hospital, Rikshospitalet, Sognsvannveien 20, Pb 4950 Nydalen, 0424 Oslo, Norway.,University of Oslo, Faculty of Medicine, Institute of Clinical Medicine, Pb 1072 Blindern, 0316 Oslo Norway
| | - Einar Hopp
- Department of Cardiology, Center for Cardiological Innovation, Oslo University Hospital, Rikshospitalet, Sognsvannveien 20, Pb 4950 Nydalen, 0424 Oslo, Norway.,Division of Radiology and Nuclear Medicine, Oslo University Hospital, Rikshospitalet, Sognsvannveien 20, Pb 4950 Nydalen, 0424 Oslo, Norway
| | - Kristina H Haugaa
- Department of Cardiology, Center for Cardiological Innovation, Oslo University Hospital, Rikshospitalet, Sognsvannveien 20, Pb 4950 Nydalen, 0424 Oslo, Norway.,University of Oslo, Faculty of Medicine, Institute of Clinical Medicine, Pb 1072 Blindern, 0316 Oslo Norway
| | - Thor Edvardsen
- Department of Cardiology, Center for Cardiological Innovation, Oslo University Hospital, Rikshospitalet, Sognsvannveien 20, Pb 4950 Nydalen, 0424 Oslo, Norway.,University of Oslo, Faculty of Medicine, Institute of Clinical Medicine, Pb 1072 Blindern, 0316 Oslo Norway
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Deshmukh A, Sattur S, Bechtol T, Heckman LIB, Prinzen FW, Deshmukh P. Sequential His bundle and left ventricular pacing for cardiac resynchronization. J Cardiovasc Electrophysiol 2020; 31:2448-2454. [DOI: 10.1111/jce.14674] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 06/23/2020] [Accepted: 07/10/2020] [Indexed: 11/30/2022]
Affiliation(s)
- Amrish Deshmukh
- Department of Internal Medicine, Division of Cardiovascular Medicine, Samuel and Jean Frankel Cardiovascular Center University of Michigan Ann Arbor Michigan USA
| | - Sudhakar Sattur
- Department of Internal Medicine, Division of Cardiology, Arrhythmia Center Robert Packer Hospital Sayre Pennsylvania USA
| | - Tim Bechtol
- Department of Field CRM Abbott Williamsport Pennsylvania USA
| | | | - Frits W. Prinzen
- Cardiovascular Research Institute Maastricht Maastricht The Netherlands
| | - Pramod Deshmukh
- Department of Internal Medicine, Division of Cardiology, Arrhythmia Center Robert Packer Hospital Sayre Pennsylvania USA
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Okafor O, Umar F, Zegard A, van Dam P, Walton J, Stegemann B, Marshall H, Leyva F. Effect of QRS area reduction and myocardial scar on the hemodynamic response to cardiac resynchronization therapy. Heart Rhythm 2020; 17:2046-2055. [PMID: 32717314 DOI: 10.1016/j.hrthm.2020.07.025] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 07/08/2020] [Accepted: 07/22/2020] [Indexed: 11/25/2022]
Abstract
BACKGROUND Vectorcardiographic QRS area (QRSarea) predicts clinical outcomes after cardiac resynchronization therapy (CRT). Myocardial scar adversely affects clinical outcomes after CRT. OBJECTIVE The purpose of this study in patients with an ideally deployed quadripolar left ventricular (LV) lead (QUAD) was to determine whether reducing QRSarea leads to an acute hemodynamic response (AHR) and whether scar affects this interaction. METHODS Patients (n = 26; age 69.2 ± 9.12 years [mean ± SD]) underwent assessment of the maximum rate of change of LV pressure (ΔLV dP/dtmax) during CRT using various left ventricular pacing locations (LVPLs). Cardiac magnetic resonance (CMR) scan was used to localize LV myocardial scar. RESULTS Interindividually, ΔQRSarea (area under the receiver operating characteristic curve [AUC] 0.81; P <.001) and change in QRS duration (ΔQRSd) (AUC 0.76; P <.001) predicted ΔLV dP/dtmax after CRT. Scar burden correlated with ΔQRSarea (r = 0.35; P = .003), ΔQRSarea (r = 0.35; P = .003), and ΔQRSd (r = 0.46; P <.001). A reduction in QRSarea was observed with LVPLs remote from scar (-3.28 ± 38.1 μVs) or in LVPLs in patients with no scar at all (-43.8 ± 36.8 μVs), whereas LVPLs over scar increased QRSarea (22.2 ± 58.4 μVs) (P <.001 for all comparisons). LVPLs within 1 scarred LV segment were associated with lower ΔLV dP/dtmax (-2.21% ± 11.5%) than LVPLs remote from scar (5.23% ± 10.3%; P <.001) or LVPLs in patients with no scar at all (10.2% ± 7.75%) (both P <.001). CONCLUSION Reducing QRSarea improves the AHR to CRT. Myocardial scar adversely affects ΔQRSarea and the AHR. These findings may support the use of ΔQRSarea and CMR in optimizing CRT using QUAD.
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Affiliation(s)
- Osita Okafor
- Aston Medical Research Institute, Aston Medical School, Aston University, Birmingham, United Kingdom
| | - Fraz Umar
- Centre for Cardiovascular Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Abbasin Zegard
- Aston Medical Research Institute, Aston Medical School, Aston University, Birmingham, United Kingdom
| | | | - Jamie Walton
- Queen Elizabeth Hospital, Birmingham, United Kingdom
| | - Berthold Stegemann
- Aston Medical Research Institute, Aston Medical School, Aston University, Birmingham, United Kingdom
| | | | - Francisco Leyva
- Aston Medical Research Institute, Aston Medical School, Aston University, Birmingham, United Kingdom.
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