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Guaricci AI, Santobuono VE, Soldato N, Basile P, Bozza N, Carella MC, Siena P, Forleo C, Pontone G, Ciccone MM. Improvement of myocardial contractility with leadless endocardial single-lead atrial sensing ventricular pacing in patients with prolonged PQ interval. Future Cardiol 2024; 20:21-25. [PMID: 38223918 DOI: 10.2217/fca-2023-0112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 12/20/2023] [Indexed: 01/16/2024] Open
Abstract
Aim: Micra AV represents a leadless endocardial pacing system able to detect atrial contractions providing atrioventricular synchrony. A reduction of myocardial contractility may be detected in case of first-degree atrioventricular block (AVB). Materials & methods: In six patients with first-degree AVB (PQ interval ≥220 msec) was evaluated the left ventricle global longitudinal strain (LV GLS) by speckle tracking (ST) echocardiography during single-lead atrial sensing ventricular pacing (VDD) stimulation as compared with spontaneous rhythm (SR), 24-48 h after Micra AV implantation. Results: A statistically significant difference between the two modalities was observed (LV GLS during SR: -14.7% [interquartile range (IQR) 5.5], LV GLS during VDD pacing: -16.1% [IQR 5.2]; p value = 0.041). Conclusion: Our preliminary results suggest an improvement of myocardial contractility with VDD pacing as compared with SR.
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Affiliation(s)
- Andrea Igoren Guaricci
- University Cardiology Unit, Interdisciplinary Department of Medicine, Polyclinic University Hospital, Bari, 70124, Italy
| | - Vincenzo Ezio Santobuono
- University Cardiology Unit, Interdisciplinary Department of Medicine, Polyclinic University Hospital, Bari, 70124, Italy
| | - Nicolò Soldato
- University Cardiology Unit, Interdisciplinary Department of Medicine, Polyclinic University Hospital, Bari, 70124, Italy
| | - Paolo Basile
- University Cardiology Unit, Interdisciplinary Department of Medicine, Polyclinic University Hospital, Bari, 70124, Italy
| | - Nicola Bozza
- University Cardiology Unit, Interdisciplinary Department of Medicine, Polyclinic University Hospital, Bari, 70124, Italy
| | - Maria Cristina Carella
- University Cardiology Unit, Interdisciplinary Department of Medicine, Polyclinic University Hospital, Bari, 70124, Italy
| | - Paola Siena
- University Cardiology Unit, Interdisciplinary Department of Medicine, Polyclinic University Hospital, Bari, 70124, Italy
| | - Cinzia Forleo
- University Cardiology Unit, Interdisciplinary Department of Medicine, Polyclinic University Hospital, Bari, 70124, Italy
| | - Gianluca Pontone
- Department of Perioperative Cardiology & Cardiovascular Imaging, Centro Cardiologico Monzino IRCCS, Milan, 20138, Italy
| | - Marco Matteo Ciccone
- University Cardiology Unit, Interdisciplinary Department of Medicine, Polyclinic University Hospital, Bari, 70124, Italy
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Manocha K, Kandola MS, Kalil R, Sciria C, Bassil G, Patel N, Lerman BB, Kim J, Abdelrahman M, Cheung JW. Reduction of left ventricular global longitudinal strain in patients with permanent pacemakers as a predictor of heart failure and mortality outcomes. Pacing Clin Electrophysiol 2023; 46:385-391. [PMID: 37087556 PMCID: PMC10288370 DOI: 10.1111/pace.14701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Revised: 03/27/2023] [Accepted: 04/03/2023] [Indexed: 04/24/2023]
Abstract
INTRODUCTION Frequent right ventricular (RV) pacing is associated with cardiomyopathy. The impact of RV pacing on left ventricular (LV) global longitudinal strain (GLS) and clinical outcomes is unclear. METHODS We analyzed GLS via two-dimensional speckle tracking and LV ejection fraction (EF) on pre- and post-implantation transthoracic echocardiograms of patients undergoing dual chamber pacemaker implantation. We collected long-term data on strain, LVEF, and clinical outcomes. RESULTS One hundred and ten patients (mean age 76 ± 12 years; 59 [54%] female) were followed for mean 23 ± 17 months. Mean baseline LVEF was 58 ± 11% and mean GLS was -17 ± 4%. Twenty-four (22%) patients had an absolute decrease in LVEF > 10% and 43 (39%) patients had a relative reduction of GLS > 15%. Among patients with a reduction of GLS, a larger proportion of patients had RV pacing burden ≥20% (67% vs. 46%; p = .048). Compared to patients without GLS reduction, more patients with a reduction in GLS reached a composite endpoint of HF hospitalization, CRT upgrade or death (47% vs. 16%; p = .001). CONCLUSION Reduction in LV GLS was seen in nearly four in 10 patients undergoing pacemaker implantation and was significantly associated with increased RV pacing burden. LV GLS reduction was associated with increased risk of adverse outcomes. LV GLS may have utility in predicting outcomes among patients with RV pacing.
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Affiliation(s)
- Kevin Manocha
- Department of Medicine, Division of Cardiology Weill Cornell Medicine - New York Presbyterian Hospital, New York, New York, USA
| | - Manjinder S Kandola
- Department of Medicine, Division of Cardiology Weill Cornell Medicine - New York Presbyterian Hospital, New York, New York, USA
| | - Ramsey Kalil
- Department of Medicine, Division of Cardiology Weill Cornell Medicine - New York Presbyterian Hospital, New York, New York, USA
| | - Christopher Sciria
- Department of Medicine, Division of Cardiology Weill Cornell Medicine - New York Presbyterian Hospital, New York, New York, USA
| | - Guillaume Bassil
- Department of Medicine, Division of Cardiology Weill Cornell Medicine - New York Presbyterian Hospital, New York, New York, USA
| | - Nishi Patel
- Department of Medicine, Division of Cardiology Weill Cornell Medicine - New York Presbyterian Hospital, New York, New York, USA
| | - Bruce B Lerman
- Department of Medicine, Division of Cardiology Weill Cornell Medicine - New York Presbyterian Hospital, New York, New York, USA
| | - Jiwon Kim
- Department of Medicine, Division of Cardiology Weill Cornell Medicine - New York Presbyterian Hospital, New York, New York, USA
| | - Mohamed Abdelrahman
- Department of Medicine, Division of Cardiology Weill Cornell Medicine - New York Presbyterian Hospital, New York, New York, USA
| | - Jim W Cheung
- Department of Medicine, Division of Cardiology Weill Cornell Medicine - New York Presbyterian Hospital, New York, New York, USA
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Huizar JF, Kaszala K, Tan A, Koneru J, Mankad P, Kron J, Ellenbogen KA. Abnormal Conduction-Induced Cardiomyopathy: JACC Review Topic of the Week. J Am Coll Cardiol 2023; 81:1192-1200. [PMID: 36948737 DOI: 10.1016/j.jacc.2023.01.040] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 12/16/2022] [Accepted: 01/17/2023] [Indexed: 03/24/2023]
Abstract
Nonischemic cardiomyopathies are a frequent occurrence. The understanding of the mechanism(s) and triggers of these cardiomyopathies have led to improvement and even recovery of left ventricular function. Although chronic right ventricular pacing-induced cardiomyopathy has been recognized for many years, left bundle branch block and pre-excitation have been recently identified as potential reversible causes of cardiomyopathy. These cardiomyopathies share a similar abnormal ventricular propagation that can be recognized by a wide QRS duration with left bundle branch block pattern; thus, we coined the term abnormal conduction-induced cardiomyopathies. Such abnormal propagation results in an abnormal contractility that can only be recognized by cardiac imaging as ventricular dyssynchrony. Appropriate diagnosis and treatment will not only lead to improved left ventricular ejection fraction and functional class, but may also reduce morbidity and mortality. This review presents an update of the mechanisms, prevalence, incidence, and risk factors, as well as their diagnosis and management, while highlighting current gaps of knowledge.
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Affiliation(s)
- Jose F Huizar
- Department of Internal Medicine, Cardiology Division, Central Virginia VA Health Care System, Richmond Veterans Affairs Medical Center, Richmond, Virginia, USA; Department of Internal Medicine, Cardiology Division/Pauley Heart Center, Virginia Commonwealth University, Richmond, Virginia, USA.
| | - Karoly Kaszala
- Department of Internal Medicine, Cardiology Division, Central Virginia VA Health Care System, Richmond Veterans Affairs Medical Center, Richmond, Virginia, USA; Department of Internal Medicine, Cardiology Division/Pauley Heart Center, Virginia Commonwealth University, Richmond, Virginia, USA
| | - Alex Tan
- Department of Internal Medicine, Cardiology Division, Central Virginia VA Health Care System, Richmond Veterans Affairs Medical Center, Richmond, Virginia, USA; Department of Internal Medicine, Cardiology Division/Pauley Heart Center, Virginia Commonwealth University, Richmond, Virginia, USA
| | - Jayanthi Koneru
- Department of Internal Medicine, Cardiology Division/Pauley Heart Center, Virginia Commonwealth University, Richmond, Virginia, USA
| | - Pranav Mankad
- Department of Internal Medicine, Cardiology Division/Pauley Heart Center, Virginia Commonwealth University, Richmond, Virginia, USA
| | - Jordana Kron
- Department of Internal Medicine, Cardiology Division/Pauley Heart Center, Virginia Commonwealth University, Richmond, Virginia, USA
| | - Kenneth A Ellenbogen
- Department of Internal Medicine, Cardiology Division/Pauley Heart Center, Virginia Commonwealth University, Richmond, Virginia, USA
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Yamasaki S, Miyake M, Sakamoto J, Tamura A, Yamagami S, Nisiuchi S, Yamane K, Tamaki Y, Enomoto S, Kondo H, Tamura T. A case of systemic sclerosis with worsened subclinical left ventricular systolic dysfunction after pacemaker implantation. J Cardiol Cases 2022; 26:134-138. [PMID: 35949580 PMCID: PMC9352417 DOI: 10.1016/j.jccase.2022.03.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 03/17/2022] [Accepted: 03/26/2022] [Indexed: 11/29/2022] Open
Abstract
A 58-year-old man suffering from systemic sclerosis was admitted to our hospital because of heart failure. He developed atrioventricular block 4 months previously and had a pacemaker implanted, after which left ventricular wall motion markedly worsened. The global longitudinal strain was already decreased before the onset of atrioventricular block, although the left ventricular ejection fraction was normal. Right ventricular pacing was suspected to have caused overt left ventricular systolic dysfunction. Therefore, right ventricular pacing was upgraded to cardiac resynchronization therapy. After this change, the left ventricular ejection fraction improved to almost normal, but global longitudinal strain remained decreased. The findings in our case suggest that some patients with systemic sclerosis already have subclinical left ventricular systolic dysfunction before the onset of atrioventricular block. Additionally, right ventricular pacing may cause further deterioration of left ventricular systolic function and heart failure. Learning objective The possibility of subclinical left ventricular systolic dysfunction associated with systemic sclerosis should be considered when implanting a pacemaker. Speckle-tracking echocardiography may also be useful in the management of patients with systemic sclerosis.
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Chin JY, Kang KW, Park SH, Choi YJ, Jung KT, Lee S, Youn HJ. Pre-implant global longitudinal strain as an early sign of pacing-induced cardiomyopathy in patients with complete atrioventricular block. Echocardiography 2021; 38:175-182. [PMID: 33406280 PMCID: PMC7986095 DOI: 10.1111/echo.14942] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 10/22/2020] [Accepted: 11/11/2020] [Indexed: 11/29/2022] Open
Abstract
Introduction Long‐term right ventricular pacing is the only treatment for patients with a complete atrioventricular block (CAVB); however, it frequently triggers ventricular dys‐synchrony with left ventricular (LV) dysfunction. Previous studies showed that an early decline of LV global longitudinal strain (GLS) predicts pacing‐induced LV dysfunction. We aimed to investigate the potential ability of the initial LV strain to predict pacing‐induced cardiomyopathy (PICM) through long‐term follow‐ups. Methods We retrospectively enrolled 80 patients with CAVB with normal LV function who were implanted with dual‐chamber pacemakers between 2008 and 2018. Echocardiographic data and parameters (including longitudinal, radial, and circumferential strain based on speckle‐tracking) were analyzed for the pre‐implant (≤6 months) and post‐implant periods. PICM was defined as a ≥10% reduction in the left ventricular ejection fraction (LVEF) resulting in an LVEF of <50% during the post‐implant period. Predictors of PICM were identified using Cox proportional hazard models. Results Patients who developed PICM were more likely to exhibit lower baseline LV GLS, as well as wider native and pacing QRS durations, than those who did not develop PICM (P = .016, P = .011, and P = .026, respectively). In the multivariate analysis, pre‐implant LV GLS (hazard ratio: 1.27; 95% confidence interval 1.009–1.492; P = .004) was independently associated with the development of PICM. Conclusion A lower baseline LV GLS predicts an increased risk of PICM. Patients with CAVB exhibiting low GLS are at increased risk of PICM. More frequent follow‐up visits are warranted in these patients, who may also require de novo His‐bundle pacing or an upgrade to biventricular pacing.
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Affiliation(s)
- Jung Yeon Chin
- Cardiovascular Center, Division of Cardiology, Department of Internal Medicine, College of Medicine, Eulji University Hospital, Eulji University of Korea, Daejeon, Korea
| | - Ki-Woon Kang
- Cardiovascular Center, Division of Cardiology, Department of Internal Medicine, College of Medicine, Eulji University Hospital, Eulji University of Korea, Daejeon, Korea
| | - Sang Hyun Park
- Cardiovascular Center, Division of Cardiology, Department of Internal Medicine, College of Medicine, Eulji University Hospital, Eulji University of Korea, Daejeon, Korea
| | - Yu Jeong Choi
- Cardiovascular Center, Division of Cardiology, Department of Internal Medicine, College of Medicine, Eulji University Hospital, Eulji University of Korea, Daejeon, Korea
| | - Kyung Tae Jung
- Cardiovascular Center, Division of Cardiology, Department of Internal Medicine, College of Medicine, Eulji University Hospital, Eulji University of Korea, Daejeon, Korea
| | - Soyoung Lee
- Cardiovascular Center, Division of Cardiology, Department of Internal Medicine, College of Medicine, Eulji University Hospital, Eulji University of Korea, Daejeon, Korea
| | - Ho-Joong Youn
- Cardiovascular Center, Division of Cardiology, Department of Internal Medicine, College of Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Korea
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