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Kaya E, Andresen K, Lie ØH, Aaberge L, Haugaa KH, Edvardsen T, Skulstad H. Left ventricular mechanical dispersion as a predictor of the need for pacemaker implantation after transcatheter aortic valve implantation: MeDiPace TAVI study. Eur Heart J Cardiovasc Imaging 2024; 25:539-547. [PMID: 37976177 DOI: 10.1093/ehjci/jead315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 11/06/2023] [Accepted: 11/14/2023] [Indexed: 11/19/2023] Open
Abstract
AIMS Permanent pacemaker (PM) implantation is common after transcatheter aortic valve implantation (TAVI). Left ventricular mechanical dispersion (MeDi) by speckle tracking echocardiography is a marker of fibrosis that causes alterations in the conduction system. We hypothesized that MeDi can be a predictor of the need for PM implantation after TAVI. METHODS AND RESULTS Consecutively, 200 TAVI patients were enrolled. Transthoracic echocardiography and electrocardiography examinations were recorded before TAVI to evaluate global longitudinal strain (GLS), MeDi, and conduction disturbances. PM implantation information was obtained 3 months after TAVI. Patients were stratified into PM or no PM group. Mean age was 80 + 7 years (44% women). Twenty-nine patients (16%) received PM. MeDi, QRS duration, existence of right bundle branch abnormality (RBBB), and first-degree atrioventricular (AV) block were significantly different between groups. MeDi was 57 ± 15 ms and 48 ± 12 ms in PM and no PM groups, respectively (P < 0.001). In multivariate analysis, MeDi predicted the need for PM after TAVI independently of GLS, QRS duration, RBBB, and first-degree AV block [odds ratio (OR): 1.73, 95% confidence interval (CI): 1.22-2.45] with an area under the curve (AUC) of 0.68 in receiver operating characteristic (ROC) curves. Moreover, RBBB was an independent predictor of PM need after TAVI (OR: 8.98, 95% CI: 1.78-45.03). When added to RBBB, MeDi had an incremental predictive value with an AUC of 0.73 in ROC curves (P = 0.01). CONCLUSION MeDi may be used as an echocardiographic functional predictor of the need for PM after TAVI.
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Affiliation(s)
- Esra Kaya
- Department of Cardiology, Clinic of Heart, Lung and Vessel Disease, Rikshospitalet, Oslo University Hospital, Sognsvannsveien 20, 0372 Oslo, Norway
- Clinic of Heart, Lung and Vessel Disease, Rikshospitalet, Institude for Surgical Research, Oslo University Hospital, Sognsvannsveien 20,0372 Oslo, Norway
- PROCARDIO-Center for Innovation, Clinic of Heart, Lung and Vessel Disease, Rikshospitalet, Oslo University Hospital, Oslo, Norway
| | - Kristoffer Andresen
- Department of Cardiology, Clinic of Heart, Lung and Vessel Disease, Rikshospitalet, Oslo University Hospital, Sognsvannsveien 20, 0372 Oslo, Norway
- PROCARDIO-Center for Innovation, Clinic of Heart, Lung and Vessel Disease, Rikshospitalet, Oslo University Hospital, Oslo, Norway
- Institude of Clinical Medicine, University of Oslo, Blindern 0318, Oslo, Norway
| | - Øyvind H Lie
- Department of Cardiology, Clinic of Heart, Lung and Vessel Disease, Rikshospitalet, Oslo University Hospital, Sognsvannsveien 20, 0372 Oslo, Norway
- PROCARDIO-Center for Innovation, Clinic of Heart, Lung and Vessel Disease, Rikshospitalet, Oslo University Hospital, Oslo, Norway
| | - Lars Aaberge
- Department of Cardiology, Clinic of Heart, Lung and Vessel Disease, Rikshospitalet, Oslo University Hospital, Sognsvannsveien 20, 0372 Oslo, Norway
| | - Kristina H Haugaa
- Department of Cardiology, Clinic of Heart, Lung and Vessel Disease, Rikshospitalet, Oslo University Hospital, Sognsvannsveien 20, 0372 Oslo, Norway
- PROCARDIO-Center for Innovation, Clinic of Heart, Lung and Vessel Disease, Rikshospitalet, Oslo University Hospital, Oslo, Norway
- Institude of Clinical Medicine, University of Oslo, Blindern 0318, Oslo, Norway
| | - Thor Edvardsen
- Department of Cardiology, Clinic of Heart, Lung and Vessel Disease, Rikshospitalet, Oslo University Hospital, Sognsvannsveien 20, 0372 Oslo, Norway
- PROCARDIO-Center for Innovation, Clinic of Heart, Lung and Vessel Disease, Rikshospitalet, Oslo University Hospital, Oslo, Norway
- Institude of Clinical Medicine, University of Oslo, Blindern 0318, Oslo, Norway
| | - Helge Skulstad
- Department of Cardiology, Clinic of Heart, Lung and Vessel Disease, Rikshospitalet, Oslo University Hospital, Sognsvannsveien 20, 0372 Oslo, Norway
- Clinic of Heart, Lung and Vessel Disease, Rikshospitalet, Institude for Surgical Research, Oslo University Hospital, Sognsvannsveien 20,0372 Oslo, Norway
- PROCARDIO-Center for Innovation, Clinic of Heart, Lung and Vessel Disease, Rikshospitalet, Oslo University Hospital, Oslo, Norway
- Institude of Clinical Medicine, University of Oslo, Blindern 0318, Oslo, Norway
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Cosyns B, Haugaa KH. Multiparametric Approach to Asymptomatic Aortic Stenosis: New Surrogate Markers Are Welcome. JACC Cardiovasc Imaging 2024; 17:246-247. [PMID: 38032589 DOI: 10.1016/j.jcmg.2023.10.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 10/19/2023] [Indexed: 12/01/2023]
Affiliation(s)
- Bernard Cosyns
- Center for Cardiovascular Disorders, Department of Cardiology, University Hospital Brussels, Free University of Brussels, Brussels, Belgium.
| | - Kristina H Haugaa
- ProCardio Center for Innovation, Department of Cardiology, Oslo University Hospital, Rikshospitalet, Oslo, Norway; Faculty of Medicine, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
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Thellier N, Altes A, Rietz M, Menet A, Layec J, Outteryck F, Appert L, Tribouilloy C, Maréchaux S. Additive Prognostic Value of Left Ventricular Dispersion and Deformation in Patients With Severe Aortic Stenosis. JACC Cardiovasc Imaging 2024; 17:235-245. [PMID: 37943232 DOI: 10.1016/j.jcmg.2023.09.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 09/12/2023] [Accepted: 09/25/2023] [Indexed: 11/10/2023]
Abstract
BACKGROUND Speckle tracking strain echocardiography allows one to visualize the timing of maximum regional strain and quantifies left ventricular-mechanical dispersion (LV-MD). Whether LV-MD and LV-global longitudinal strain (LV-GLS) provide similar or complementary information in mortality risk stratification in patients with severe aortic stenosis (SAS) remains unknown. OBJECTIVES The authors hypothesized that LV mechanical dyssynchrony assessed by LV-MD is associated with an increased risk of mortality and provides additional prognostic information on top of LV-GLS in patients with SAS. METHODS A total of 364 patients with SAS (aortic valve area indexed ≤0.6 cm2/m2 and/or aortic valve area ≤1 cm2), LV ejection fraction ≥50% and no or mild symptoms were enrolled. The endpoint was overall mortality. RESULTS During a median follow-up period of 41 months, 149 patients died. After adjustment, LV-MD ≥68 ms was significantly associated with an increased risk of mortality (adjusted HR: 1.41; 95% CI: 1.01-1.96; P = 0.044). Adding LV-MD ≥68 ms to a multivariable Cox regression model including LV-GLS ≥-15% improved predictive performance in terms of overall mortality, with improved global model fit, reclassification, and better discrimination. Patients with both criteria had an important increase in mortality compared to patients with none or one criterion (adjusted HR: 2.02; 95% CI: 1.34-3.03; P = 0.001). Interobserver reproducibility of LV-MD was good with an intraclass correlation coefficient of 0.90 (95% CI: 0.72-0.97). CONCLUSIONS LV-MD is a reproducible parameter independently associated with an increased risk of mortality in SAS. Increased LV-MD associated with depressed LV-GLS identifies a subgroup of patients with an increased mortality risk. Whether early aortic valve replacement improves the outcome of these patients deserves further studies.
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Affiliation(s)
- Nicolas Thellier
- Lille Catholic Hospitals, Heart Valve Center, Cardiology Department, ETHICS EA 7446, Lille Catholic University, Lille, France
| | - Alexandre Altes
- Lille Catholic Hospitals, Heart Valve Center, Cardiology Department, ETHICS EA 7446, Lille Catholic University, Lille, France
| | - Michael Rietz
- Lille Catholic Hospitals, Heart Valve Center, Cardiology Department, ETHICS EA 7446, Lille Catholic University, Lille, France
| | - Aymeric Menet
- Lille Catholic Hospitals, Heart Valve Center, Cardiology Department, ETHICS EA 7446, Lille Catholic University, Lille, France
| | - Jeremy Layec
- Lille Catholic Hospitals, Heart Valve Center, Cardiology Department, ETHICS EA 7446, Lille Catholic University, Lille, France
| | - François Outteryck
- Lille Catholic Hospitals, Heart Valve Center, Cardiology Department, ETHICS EA 7446, Lille Catholic University, Lille, France
| | - Ludovic Appert
- Lille Catholic Hospitals, Heart Valve Center, Cardiology Department, ETHICS EA 7446, Lille Catholic University, Lille, France
| | - Christophe Tribouilloy
- Amiens University Hospital Center, Amiens, France; EA 7517 MP3CV Jules Verne University of Picardie, Amiens, France
| | - Sylvestre Maréchaux
- Lille Catholic Hospitals, Heart Valve Center, Cardiology Department, ETHICS EA 7446, Lille Catholic University, Lille, France.
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Sun L, Zhu W, Xu Y, Gao M, Sun S, Li J. Clinical study of two-dimensional speckle tracking to evaluate abnormal myocardial motion due to coronary lesions. Echocardiography 2024; 41:e15744. [PMID: 38284681 DOI: 10.1111/echo.15744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 12/21/2023] [Accepted: 12/30/2023] [Indexed: 01/30/2024] Open
Abstract
OBJECTIVE To investigate the predictive ability of global longitudinal strain (GLS) and mechanical dispersion for coronary stenosis and provide a more reliable noninvasive method for diagnosis of obstructive coronary artery disease(OCAD). METHODS Sixty-seven patients diagnosed with suspected CAD were included in the study. Patients with coronary stenosis greater than 50% were assigned as OCAD, while the others were assigned as non obstructive coronary artery disease(NOCAD). General information was collected and patients underwent speckle tracking echocardiogram(STE). RESULTS Spearman's correlation analysis showed that GLS and mechanical dispersion were positively correlated with the degree of coronary stenosis (r = 0.383, 0.342, p < 0.05), and there was also a positive correlation between GLS and mechanical dispersion (r = 0.327, p < 0.05). GLS, longitudinal strain (LS) of each chamber, and mechanical dispersion were higher in the OCAD group than in the NOCAD group (p < 0.05). Univariate regression analysis showed that GLS, each lumen LS and mechanical dispersion were statistically significant (p < 0.05). Multifactorial regression analysis showed that elevated GLS (p = 0.007) and elevated mechanical dispersion (p = 0.030) were independent risk factors for OCAD. The ROC curves showed that GLS predicted OCAD (AUC area 0.745, 95% CI 0.624 to 0.865) versus mechanical discrete prediction of OCAD (AUC area 0.702, 95% CI 0.569 to 0.834) were more diagnostic than conventional cardiac ultrasound observations of ventricular wall motion abnormalities (AUC area 0.566, 95% CI 0.463 to 0.669). CONCLUSIONS Combining GLS with mechanical dispersion can rapidly assess OCAD in a very short period, which has strong promotion value and in-depth research value.
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Affiliation(s)
- Lin Sun
- Departments of Cardiology, Hospital of Harbin Medical University, Harbin, China
| | - Weiwei Zhu
- Departments of Cardiology, Hospital of Harbin Medical University, Harbin, China
| | - Yidan Xu
- Departments of Cardiology, Hospital of Harbin Medical University, Harbin, China
| | - Ming Gao
- Departments of Cardiology, Hospital of Harbin Medical University, Harbin, China
| | - Shaoqing Sun
- Department of Cardiology, Hangzhou Lin'an District Hospital of Traditional Chinese Medicine Hangzhou, Zhejiang, China
| | - Jingjie Li
- Departments of Cardiology, Hospital of Harbin Medical University, Harbin, China
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Zhang X, Zhang J, Cai Y, Li Y, Qin S, Li J, Zeng D, Huang T, Huang LL, Zhong Y, Wei L, Wu J. Speckle-Tracking Echocardiography Predicts Adverse Left Ventricular Remodeling After Valve Replacement in Rheumatic Mitral Stenosis. Ther Clin Risk Manag 2023; 19:755-766. [PMID: 37750070 PMCID: PMC10518172 DOI: 10.2147/tcrm.s419163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Accepted: 08/14/2023] [Indexed: 09/27/2023] Open
Abstract
Background Rheumatic mitral stenosis(RMS) may leads to left ventricular remodeling (LVR), which can persist even after valve surgery. Identifying markers for early structure and function in patients with rheumatic heart disease who are at risk for adverse LVR after surgery can help determine the optimal timing of intervention. This study aimed to investigate whether preoperative parameters of global left ventricular long-axis strain (LVGLS) and mechanical discretization (MD) could predict postoperative adverse LVR. Methods A total of 109 adult patients with RMS and 50 healthy controls were enrolled in this study. Baseline clinical features, conventional echocardiography results, LVGLS, and MD were compared between the two groups. Pre- and post-surgery echocardiography measurements were collected, and adverse LVR was defined as a>15% increase in left ventricular end-diastolic volume or >10% decrease in left ventricular ejection fraction. Binary regression analysis was used to determine independent predictors of poor left ventricular remodeling. Results The variables associated with adverse LVR in this study were LVGLS (P<0.001, odds ratio: 1.996, 95% CI: 1.394-2.856) and MD (P=0.011, odds ratio: 1.031, 95% CI: 1.007-1.055). The poorly reconstructed group had lower absolute values of LVGLS and higher MD than the healthy control group and the non-poorly reconstructed group. A LVGLS cutoff of -15.0% was the best predictor for patients with poorly reconstructed LVR (sensitivity: 75.7%; specificity: 100.0%; AUC: 0.93), and a MD cutoff of 63.8ms was the best predictor (sensitivity: 63.8%; specificity: 98.6%; AUC: 0.88). Conclusion Speckle tracking echocardiography has potential value for predicting the progression of adverse LVR and for identifying non-responders among patients with RMS undergoing surgery.
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Affiliation(s)
- Xiaofeng Zhang
- Department of Ultrasonic Medicine, the First Affiliated Hospital of Guangxi Medical University, Nanning, People’s Republic of China
| | - Jiaqi Zhang
- Department of Ultrasonic Medicine, the First Affiliated Hospital of Guangxi Medical University, Nanning, People’s Republic of China
| | - Yongzhi Cai
- Department of Ultrasonic Medicine, the First Affiliated Hospital of Guangxi Medical University, Nanning, People’s Republic of China
| | - Yue Li
- Department of Ultrasonic Medicine, the First Affiliated Hospital of Guangxi Medical University, Nanning, People’s Republic of China
| | - Shiyun Qin
- Department of Ultrasonic Medicine, the First Affiliated Hospital of Guangxi Medical University, Nanning, People’s Republic of China
| | - Jingtao Li
- Department of Ultrasonic Medicine, the First Affiliated Hospital of Guangxi Medical University, Nanning, People’s Republic of China
| | - Decai Zeng
- Department of Ultrasonic Medicine, the First Affiliated Hospital of Guangxi Medical University, Nanning, People’s Republic of China
| | - Tongtong Huang
- Department of Ultrasonic Medicine, the First Affiliated Hospital of Guangxi Medical University, Nanning, People’s Republic of China
| | - Liu Liu Huang
- Department of Cardiothoracic Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning, People’s Republic of China
| | - Yanfen Zhong
- Department of Ultrasonic Medicine, the First Affiliated Hospital of Guangxi Medical University, Nanning, People’s Republic of China
| | - Lihui Wei
- Department of Ultrasonic Medicine, the First Affiliated Hospital of Guangxi Medical University, Nanning, People’s Republic of China
| | - Ji Wu
- Department of Ultrasonic Medicine, the First Affiliated Hospital of Guangxi Medical University, Nanning, People’s Republic of China
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Bjerregaard CL, Skaarup KG, Lassen MCH, Biering-Sørensen T, Olsen FJ. Strain Imaging and Ventricular Arrhythmia. Diagnostics (Basel) 2023; 13:diagnostics13101778. [PMID: 37238262 DOI: 10.3390/diagnostics13101778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Revised: 05/11/2023] [Accepted: 05/13/2023] [Indexed: 05/28/2023] Open
Abstract
Ventricular arrhythmia is one of the main causes of sudden cardiac death. Hence, identifying patients at risk of ventricular arrhythmias and sudden cardiac death is important but can be challenging. The indication for an implantable cardioverter defibrillator as a primary preventive strategy relies on the left ventricular ejection fraction as a measure of systolic function. However, ejection fraction is flawed by technical constraints and is an indirect measure of systolic function. There has, therefore, been an incentive to identify other markers to optimize the risk prediction of malignant arrhythmias to select proper candidates who could benefit from an implantable cardioverter defibrillator. Speckle-tracking echocardiography allows for a detailed assessment of cardiac mechanics, and strain imaging has repeatedly been shown to be a sensitive technique to identify systolic dysfunction unrecognized by ejection fraction. Several strain measures, including global longitudinal strain, regional strain, and mechanical dispersion, have consequently been proposed as potential markers of ventricular arrhythmias. In this review, we will provide an overview of the potential use of different strain measures in the context of ventricular arrhythmias.
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Affiliation(s)
- Caroline Løkke Bjerregaard
- Department of Cardiology, Copenhagen University Hospital-Herlev and Gentofte, 2900 Hellerup, Denmark
- Center for Translational Cardiology and Pragmatic Randomized Trials, Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark
| | - Kristoffer Grundtvig Skaarup
- Department of Cardiology, Copenhagen University Hospital-Herlev and Gentofte, 2900 Hellerup, Denmark
- Center for Translational Cardiology and Pragmatic Randomized Trials, Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark
| | - Mats Christian Højbjerg Lassen
- Department of Cardiology, Copenhagen University Hospital-Herlev and Gentofte, 2900 Hellerup, Denmark
- Center for Translational Cardiology and Pragmatic Randomized Trials, Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark
| | - Tor Biering-Sørensen
- Department of Cardiology, Copenhagen University Hospital-Herlev and Gentofte, 2900 Hellerup, Denmark
- Center for Translational Cardiology and Pragmatic Randomized Trials, Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark
| | - Flemming Javier Olsen
- Department of Cardiology, Copenhagen University Hospital-Herlev and Gentofte, 2900 Hellerup, Denmark
- Center for Translational Cardiology and Pragmatic Randomized Trials, Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark
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Ionac I, Lazăr MA, Șoșdean R, Văcărescu C, Simonescu M, Luca CT, Mornoș C. Considering Both GLS and MD for a Prognostic Value in Non-ST-Segment Elevated Acute Coronary Artery Syndrome. Diagnostics (Basel) 2023; 13. [PMID: 36832233 DOI: 10.3390/diagnostics13040745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 02/06/2023] [Accepted: 02/13/2023] [Indexed: 02/18/2023] Open
Abstract
Global longitudinal strain (GLS) and mechanical dispersion (MD), as determined by 2D speckle tracking echocardiography, have been demonstrated to be reliable indicators of prognosis in a variety of cardiovascular illnesses. There are not many papers that discuss the prognostic significance of GLS and MD in a population with non-ST-segment elevated acute coronary syndrome (NSTE-ACS). Our study objective was to examine the predictive utility of the novel GLS/MD two-dimensional strain index in NSTE-ACS patients. Before discharge and four to six weeks later, echocardiography was performed on 310 consecutive hospitalized patients with NSTE-ACS and effective percutaneous coronary intervention (PCI). Cardiac mortality, malignant ventricular arrhythmia, or readmission owing to heart failure or reinfarction were the major end points. A total of 109 patients (35.16%) experienced cardiac incidents during the follow-up period (34.7 ± 8 months). The GLS/MD index at discharge was determined to be the greatest independent predictor of composite result by receiver operating characteristic analysis. The ideal cut-off value was -0.229. GLS/MD was determined to be the top independent predictor of cardiac events by multivariate Cox regression analysis. Patients with an initial GLS/MD > -0.229 that deteriorated after four to six weeks had the worst prognosis for a composite outcome, readmission, and cardiac death according to a Kaplan-Meier analysis (all p < 0.001). In conclusion, the GLS/MD ratio is a strong indicator of clinical fate in NSTE-ACS patients, especially if it is accompanied by deterioration.
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Wisløff‐Aase K, Skulstad H, Haugaa K, Lingaas PS, Beitnes JO, Halvorsen PS, Espinoza A. Myocardial electrophysiological and mechanical changes caused by moderate hypothermia-A clinical study. Physiol Rep 2022; 10:e15259. [PMID: 35439365 PMCID: PMC9017970 DOI: 10.14814/phy2.15259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 03/22/2022] [Accepted: 03/23/2022] [Indexed: 06/14/2023] Open
Abstract
Moderate hypothermia has been used to improve outcomes in comatose out-of-hospital cardiac arrest survivors during the past two decades, although the effects remain controversial. We have recently shown in an experimental study that myocardial electrophysiological and mechanical relationships were altered during moderate hypothermia. Electromechanical window positivity increased, and electrical dispersion of repolarization decreased, both of which are changes associated with decreased arrhythmogenicity in clinical conditions. Mechanical dispersion, a parameter also linked to arrhythmic risk, remained unaltered. Whether corresponding electrophysiological and mechanical changes occur in humans during moderate hypothermia, has not been previously explored. Twenty patients with normal left ventricular function were included. Measurements were obtained at 36 and 32°C prior to ascending aortic repair while on partial cardiopulmonary bypass and at 36°C after repair. Registrations were performed in the presence of both spontaneous and comparable paced heart rate during standardized loading conditions. The following electrical and mechanical parameters were explored: (1) Electromechanical window, measured as time difference between mechanical and electrical systole, (2) dispersion of repolarization from ECG T-wave, and (3) mechanical dispersion, measured as segmental variation in time to peak echocardiographic strain. At moderate hypothermia, mechanical systolic prolongation (425 ± 43-588 ± 67 ms, p < 0.001) exceeded electrical systolic prolongation (397 ± 49-497 ± 79 ms, p < 0.001), whereby, electromechanical window positivity increased (29 ± 30-86 ± 50 ms, p < 0.001). Dispersion of repolarization and mechanical dispersion remained unchanged. Corresponding electrophysiological and mechanical relationships were present at comparable paced heart rates. After rewarming, the increased electromechanical window was reversed in the presence of both spontaneous and paced heart rates. Moderate hypothermia increased electromechanical window positivity, while dispersion of repolarization and mechanical dispersion remained unchanged. This impact of hypothermia may be clinically relevant for selected groups of patients after cardiac arrest.
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Affiliation(s)
- Kristin Wisløff‐Aase
- Institute of Clinical MedicineFaculty of MedicineUniversity of OsloOsloNorway
- Departments of Research and DevelopmentDivision of Emergencies and Critical CareOslo University HospitalOsloNorway
| | - Helge Skulstad
- Institute of Clinical MedicineFaculty of MedicineUniversity of OsloOsloNorway
- ProCardio Centre for InnovationDepartment of CardiologyOslo University HospitalOsloNorway
- The Intervention CentreOslo University HospitalOsloNorway
| | - Kristina Haugaa
- ProCardio Centre for InnovationDepartment of CardiologyOslo University HospitalOsloNorway
- Karolinska Institute and Cardiovascular DivisionFaculty of MedicineKarolinska University HospitalStockholmSweden
| | | | - Jan Otto Beitnes
- ProCardio Centre for InnovationDepartment of CardiologyOslo University HospitalOsloNorway
| | - Per Steinar Halvorsen
- Institute of Clinical MedicineFaculty of MedicineUniversity of OsloOsloNorway
- The Intervention CentreOslo University HospitalOsloNorway
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Taha K, Verstraelen TE, de Brouwer R, de Bruin-Bon RHACM, Cramer MJ, Te Rijdt WP, Bouma BJ, de Boer RA, Doevendans PA, Asselbergs FW, Wilde AAM, van den Berg MP, Teske AJ. Optimal echocardiographic assessment of myocardial dysfunction for arrhythmic risk stratification in phospholamban mutation carriers. Eur Heart J Cardiovasc Imaging 2021; 23:1492-1501. [PMID: 34516619 PMCID: PMC9584619 DOI: 10.1093/ehjci/jeab178] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Accepted: 08/18/2021] [Indexed: 11/21/2022] Open
Abstract
Aims Phospholamban (PLN) p.Arg14del mutation carriers are at risk of developing malignant ventricular arrhythmias (VAs) and/or heart failure. Currently, left ventricular ejection fraction (LVEF) plays an important role in risk assessment for VA in these individuals. We aimed to study the incremental prognostic value of left ventricular mechanical dispersion (LVMD) by echocardiographic deformation imaging for prediction of sustained VA in PLN p.Arg14del mutation carriers. Methods and results We included 243 PLN p.Arg14del mutation carriers, which were classified into three groups according to the ‘45/45’ rule: (i) normal left ventricular (LV) function, defined as preserved LVEF ≥45% with normal LVMD ≤45 ms (n = 139), (ii) mechanical LV dysfunction, defined as preserved LVEF ≥45% with abnormal LVMD >45 ms (n = 63), and (iii) overt LV dysfunction, defined as reduced LVEF <45% (n = 41). During a median follow-up of 3.3 (interquartile range 1.8–6.0) years, sustained VA occurred in 35 individuals. The negative predictive value of having normal LV function at baseline was 99% [95% confidence interval (CI): 92–100%] for developing sustained VA. The positive predictive value of mechanical LV dysfunction was 20% (95% CI: 15–27%). Mechanical LV dysfunction was an independent predictor of sustained VA in multivariable analysis [hazard ratio adjusted for VA history: 20.48 (95% CI: 2.57–162.84)]. Conclusion LVMD has incremental prognostic value on top of LVEF in PLN p.Arg14del mutation carriers, particularly in those with preserved LVEF. The ‘45/45’ rule is a practical approach to echocardiographic risk stratification in this challenging group of patients. This approach may also have added value in other diseases where LVEF deterioration is a relative late marker of myocardial dysfunction.
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Affiliation(s)
- Karim Taha
- Department of Cardiology, University Medical Center Utrecht, Utrecht, The Netherlands.,Netherlands Heart Institute, Utrecht, The Netherlands
| | - Tom E Verstraelen
- Heart Center, Department of Cardiology, Amsterdam University Medical Center, Location Academic Medical Center, Amsterdam, The Netherlands
| | - Remco de Brouwer
- Department of Cardiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Rianne H A C M de Bruin-Bon
- Heart Center, Department of Cardiology, Amsterdam University Medical Center, Location Academic Medical Center, Amsterdam, The Netherlands
| | - Maarten J Cramer
- Department of Cardiology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Wouter P Te Rijdt
- Netherlands Heart Institute, Utrecht, The Netherlands.,Department of Cardiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.,Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Berto J Bouma
- Heart Center, Department of Cardiology, Amsterdam University Medical Center, Location Academic Medical Center, Amsterdam, The Netherlands
| | - Rudolf A de Boer
- Department of Cardiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Pieter A Doevendans
- Department of Cardiology, University Medical Center Utrecht, Utrecht, The Netherlands.,Netherlands Heart Institute, Utrecht, The Netherlands.,Central Military Hospital, Utrecht, The Netherlands
| | - Folkert W Asselbergs
- Department of Cardiology, University Medical Center Utrecht, Utrecht, The Netherlands.,Institute of Cardiovascular Science, Faculty of Population Health Sciences, University College London, London, UK.,Health Data Research UK and Institute of Health Informatics, University College London, London, UK
| | - Arthur A M Wilde
- Heart Center, Department of Cardiology, Amsterdam University Medical Center, Location Academic Medical Center, Amsterdam, The Netherlands
| | - Maarten P van den Berg
- Department of Cardiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Arco J Teske
- Department of Cardiology, University Medical Center Utrecht, Utrecht, The Netherlands
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10
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Aagaard EN, Kvisvik B, Pervez MO, Lyngbakken MN, Berge T, Enger S, Orstad EB, Smith P, Omland T, Tveit A, Røsjø H, Steine K. Left ventricular mechanical dispersion in a general population: Data from the Akershus Cardiac Examination 1950 study. Eur Heart J Cardiovasc Imaging 2021; 21:183-190. [PMID: 31504360 DOI: 10.1093/ehjci/jez210] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 08/22/2019] [Indexed: 12/24/2022] Open
Abstract
AIMS Increased left ventricular mechanical dispersion by 2D speckle tracking echocardiography predicts ventricular arrhythmias in ischaemic heart disease and heart failure. However, little is known about mechanical dispersion in the general population. We aimed to study mechanical dispersion in the general population and in diseases associated with increased risk of cardiovascular disease. METHODS AND RESULTS The present cross-sectional study consists of 2529 subjects born in 1950 included in the Akershus Cardiac Examination (ACE) 1950 study. Global longitudinal strain (GLS) was assessed from 17 strain segments, and mechanical dispersion calculated as the standard deviation of contraction duration of all segments. The cohort was divided according to the median value of mechanical dispersion, and multivariable linear regression models were performed with mechanical dispersion as the dependent variable. The prevalence of coronary artery disease (CAD), hypertension, obesity, and diabetes (P < 0.01 for all) was significantly higher in subjects with supra-median mechanical dispersion. In a multivariable clinical model, CAD (B = 7.05), hypertension (B = 4.15; both P < 0.001), diabetes (B = 3.39), and obesity (B = 1.89; both P < 0.05) were independently associated with increasing mechanical dispersion. When echocardiographic indices were added to the multivariable model, CAD (B = 4.38; P < 0.01) and hypertension (B = 2.86; P < 0.001) remained significant in addition to peak early diastolic tissue velocity e' (B = -2.00), GLS (B = 1.68), and ejection fraction (B = 0.22; P < 0.001 for all). CONCLUSION In a general middle-aged population, prevalent CAD and hypertension were associated with increasing mechanical dispersion, possibly indicating elevated risk of fatal arrhythmias and sudden cardiac death. Albeit weaker, systolic and diastolic dysfunction, were also associated with increasing mechanical dispersion.
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Affiliation(s)
- Erika N Aagaard
- Department of Cardiology, Division of Medicine, Akershus University Hospital, Postbox 1000, 1478 Lørenskog, Norway.,Center for Heart Failure Research, Faculty of Medicine, University of Oslo, Postbox 1078 Blindern, 0316 Oslo, Norway
| | - Brede Kvisvik
- Department of Cardiology, Division of Medicine, Akershus University Hospital, Postbox 1000, 1478 Lørenskog, Norway.,Center for Heart Failure Research, Faculty of Medicine, University of Oslo, Postbox 1078 Blindern, 0316 Oslo, Norway
| | - Mohammad O Pervez
- Department of Cardiology, Division of Medicine, Akershus University Hospital, Postbox 1000, 1478 Lørenskog, Norway.,Center for Heart Failure Research, Faculty of Medicine, University of Oslo, Postbox 1078 Blindern, 0316 Oslo, Norway
| | - Magnus N Lyngbakken
- Department of Cardiology, Division of Medicine, Akershus University Hospital, Postbox 1000, 1478 Lørenskog, Norway.,Center for Heart Failure Research, Faculty of Medicine, University of Oslo, Postbox 1078 Blindern, 0316 Oslo, Norway
| | - Trygve Berge
- Center for Heart Failure Research, Faculty of Medicine, University of Oslo, Postbox 1078 Blindern, 0316 Oslo, Norway.,Department of Medical Research, Bærum Hospital, Vestre Viken Hospital Trust, Postbox 800, 3004 Drammen, Norway
| | - Steve Enger
- Department of Medical Research, Bærum Hospital, Vestre Viken Hospital Trust, Postbox 800, 3004 Drammen, Norway
| | - Eivind B Orstad
- Department of Cardiology, Division of Medicine, Akershus University Hospital, Postbox 1000, 1478 Lørenskog, Norway
| | - Pål Smith
- Department of Cardiology, Division of Medicine, Akershus University Hospital, Postbox 1000, 1478 Lørenskog, Norway.,Center for Heart Failure Research, Faculty of Medicine, University of Oslo, Postbox 1078 Blindern, 0316 Oslo, Norway
| | - Torbjørn Omland
- Department of Cardiology, Division of Medicine, Akershus University Hospital, Postbox 1000, 1478 Lørenskog, Norway.,Center for Heart Failure Research, Faculty of Medicine, University of Oslo, Postbox 1078 Blindern, 0316 Oslo, Norway
| | - Arnljot Tveit
- Center for Heart Failure Research, Faculty of Medicine, University of Oslo, Postbox 1078 Blindern, 0316 Oslo, Norway.,Department of Medical Research, Bærum Hospital, Vestre Viken Hospital Trust, Postbox 800, 3004 Drammen, Norway
| | - Helge Røsjø
- Department of Cardiology, Division of Medicine, Akershus University Hospital, Postbox 1000, 1478 Lørenskog, Norway.,Center for Heart Failure Research, Faculty of Medicine, University of Oslo, Postbox 1078 Blindern, 0316 Oslo, Norway
| | - Kjetil Steine
- Department of Cardiology, Division of Medicine, Akershus University Hospital, Postbox 1000, 1478 Lørenskog, Norway.,Center for Heart Failure Research, Faculty of Medicine, University of Oslo, Postbox 1078 Blindern, 0316 Oslo, Norway
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11
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Verdugo-Marchese M, Coiro S, Selton-Suty C, Kobayashi M, Bozec E, Lamiral Z, Venner C, Zannad F, Rossignol P, Girerd N, Huttin O. Left ventricular myocardial deformation pattern, mechanical dispersion, and their relation with electrocardiogram markers in the large population-based STANISLAS cohort: insights into electromechanical coupling. Eur Heart J Cardiovasc Imaging 2021; 21:1237-1245. [PMID: 32577743 DOI: 10.1093/ehjci/jeaa148] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Accepted: 05/05/2020] [Indexed: 12/17/2022] Open
Abstract
AIMS Mechanical alterations in patients with electrical conduction abnormalities are reported to have prognostic value in patients with left ventricular asynchrony or long QT syndrome beyond electrocardiogram (ECG) variables. Whether conduction and repolarization patterns derived from ECG are associated with speckle tracking echocardiography parameters in subjects without overt cardiac disease is yet to be investigated. To report ranges of longitudinal deformation according to conduction and repolarization values in a population-based cohort. METHODS AND RESULTS One thousand, one hundred, and forty subjects (48.6 ± 14.0 years, 47.7% men) enrolled in the fourth visit of the STANISLAS cohort (Lorraine, France) were studied. Echocardiography strain was performed in all subjects. RR, PR, QRS, and QT intervals were retrieved from digitalized 12-lead ECG. Echocardiographic data were stratified according to quartiles of QRS and QTc duration values. Full-wall global longitudinal strain (GLS) was -21.1 ± 2.5% with a mechanical dispersion (MD) value of 34 ± 12 ms. Absolute GLS value was lower in the longest QRS quartile and shortest QTc quartile (both P < 0.001). Time-to-peak of strain was not significantly different according to QRS duration although significantly higher in patients with higher QTc (P < 0.001). MD was significantly greater in patients with longer QTc (32 ± 12 ms for QTc < 396 ms vs. 36 ± 12 ms for QTc > 421 ms; P = 0.002). CONCLUSION Longer QTc is related to increased MD and better longitudinal strain values. In a population-based setting, QRS is not associated with MD, suggesting that echocardiography-based dyssynchrony does not largely overlap with ECG-based dyssynchrony.
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Affiliation(s)
- Mario Verdugo-Marchese
- Département coeur-vaisseaux, Centre Hospitalier Universitaire Vaudois (CHUV), Rue du Bugnon 46, 1011 Lausanne, Switzerland
| | - Stefano Coiro
- Université de Lorraine, INSERM, Centre d'Investigations Cliniques Plurithématique 1433, CHRU de Nancy, Inserm U1116, Rue du Morvan, 54500 Vandœuvre-lès-Nancy, France.,FCRIN INI-CRCT (Cardiovascular and Renal Clinical Trialists) Network, Rue du Morvan, 54500 Vandœuvre-lès-Nancy, France.,Division of Cardiology, University of Perugia, Ospedale S. Maria della Misericordia, Piazzale Giorgio Menghini, 1, 06129 Perugia PG, Italy
| | - Christine Selton-Suty
- Service de Cardiologie, Institut Lorrain du Cœur et des Vaisseaux, Centre Hospitalier Universitaire de Nancy, Rue du Morvan, 54500 Vandœuvre-lès-Nancy, France
| | - Masatake Kobayashi
- Université de Lorraine, INSERM, Centre d'Investigations Cliniques Plurithématique 1433, CHRU de Nancy, Inserm U1116, Rue du Morvan, 54500 Vandœuvre-lès-Nancy, France.,FCRIN INI-CRCT (Cardiovascular and Renal Clinical Trialists) Network, Rue du Morvan, 54500 Vandœuvre-lès-Nancy, France
| | - Erwan Bozec
- Université de Lorraine, INSERM, Centre d'Investigations Cliniques Plurithématique 1433, CHRU de Nancy, Inserm U1116, Rue du Morvan, 54500 Vandœuvre-lès-Nancy, France.,FCRIN INI-CRCT (Cardiovascular and Renal Clinical Trialists) Network, Rue du Morvan, 54500 Vandœuvre-lès-Nancy, France
| | - Zohra Lamiral
- Université de Lorraine, INSERM, Centre d'Investigations Cliniques Plurithématique 1433, CHRU de Nancy, Inserm U1116, Rue du Morvan, 54500 Vandœuvre-lès-Nancy, France.,FCRIN INI-CRCT (Cardiovascular and Renal Clinical Trialists) Network, Rue du Morvan, 54500 Vandœuvre-lès-Nancy, France
| | - Clément Venner
- Service de Cardiologie, Institut Lorrain du Cœur et des Vaisseaux, Centre Hospitalier Universitaire de Nancy, Rue du Morvan, 54500 Vandœuvre-lès-Nancy, France
| | - Faiez Zannad
- Université de Lorraine, INSERM, Centre d'Investigations Cliniques Plurithématique 1433, CHRU de Nancy, Inserm U1116, Rue du Morvan, 54500 Vandœuvre-lès-Nancy, France.,FCRIN INI-CRCT (Cardiovascular and Renal Clinical Trialists) Network, Rue du Morvan, 54500 Vandœuvre-lès-Nancy, France
| | - Patrick Rossignol
- Université de Lorraine, INSERM, Centre d'Investigations Cliniques Plurithématique 1433, CHRU de Nancy, Inserm U1116, Rue du Morvan, 54500 Vandœuvre-lès-Nancy, France.,FCRIN INI-CRCT (Cardiovascular and Renal Clinical Trialists) Network, Rue du Morvan, 54500 Vandœuvre-lès-Nancy, France
| | - Nicolas Girerd
- Université de Lorraine, INSERM, Centre d'Investigations Cliniques Plurithématique 1433, CHRU de Nancy, Inserm U1116, Rue du Morvan, 54500 Vandœuvre-lès-Nancy, France.,FCRIN INI-CRCT (Cardiovascular and Renal Clinical Trialists) Network, Rue du Morvan, 54500 Vandœuvre-lès-Nancy, France
| | - Olivier Huttin
- Université de Lorraine, INSERM, Centre d'Investigations Cliniques Plurithématique 1433, CHRU de Nancy, Inserm U1116, Rue du Morvan, 54500 Vandœuvre-lès-Nancy, France.,FCRIN INI-CRCT (Cardiovascular and Renal Clinical Trialists) Network, Rue du Morvan, 54500 Vandœuvre-lès-Nancy, France.,Service de Cardiologie, Institut Lorrain du Cœur et des Vaisseaux, Centre Hospitalier Universitaire de Nancy, Rue du Morvan, 54500 Vandœuvre-lès-Nancy, France
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12
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Abou R, Prihadi EA, Goedemans L, van der Geest R, El Mahdiui M, Schalij MJ, Ajmone Marsan N, Bax JJ, Delgado V. Left ventricular mechanical dispersion in ischaemic cardiomyopathy: association with myocardial scar burden and prognostic implications. Eur Heart J Cardiovasc Imaging 2021; 21:1227-1234. [PMID: 32734280 DOI: 10.1093/ehjci/jeaa187] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 05/12/2020] [Accepted: 06/16/2020] [Indexed: 02/06/2023] Open
Abstract
AIMS Left ventricular (LV) mechanical dispersion (MD) may result from heterogeneous electrical conduction and is associated with adverse events. The present study investigated (i) the association between LV MD and the extent of LV scar as assessed with contrast-enhanced cardiac magnetic resonance (CMR) and (ii) the prognostic implications of LV MD in patients after ST-segment elevation myocardial infarction. METHODS AND RESULTS LV MD was calculated by echocardiography and myocardial scar was analysed on CMR data retrospectively. Infarct core and border zone were defined as ≥50% and 35-50% of maximal signal intensity, respectively. Patients were followed for the occurrence of the combined endpoint (all-cause mortality and appropriate implantable cardioverter-defibrillator therapy). In total, 96 patients (87% male, 57 ± 10 years) were included. Median LV MD was 53.5 ms [interquartile range (IQR) 43.4-62.8]. On CMR, total scar burden was 11.4% (IQR 3.8-17.1%), infarct core tissue 6.2% (IQR 2.0-12.7%), and border zone was 3.5% (IQR 1.5-5.7%). Correlations were observed between LV MD and infarct core (r = 0.517, P < 0.001), total scar burden (r = 0.497, P < 0.001), and border zone (r = 0.298, P = 0.003). In total, 14 patients (15%) reached the combined endpoint. Patients with LV MD >53.5 ms showed higher event rates as compared to their counterparts. Finally, LV MD showed the highest area under the curve for the prediction of the combined endpoint. CONCLUSION LV MD is correlated with LV scar burden. In addition, patients with prolonged LV MD showed higher event rates. Finally, LV MD provided the highest predictive value for the combined endpoint when compared with other parameters.
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Affiliation(s)
- Rachid Abou
- Department of Cardiology, Heart Lung Center, Leiden University Medical Centre, Albinusdreef 2, 2300RC Leiden, The Netherlands
| | - Edgard A Prihadi
- Department of Cardiology, Heart Lung Center, Leiden University Medical Centre, Albinusdreef 2, 2300RC Leiden, The Netherlands
| | - Laurien Goedemans
- Department of Cardiology, Heart Lung Center, Leiden University Medical Centre, Albinusdreef 2, 2300RC Leiden, The Netherlands
| | - Rob van der Geest
- Department of Cardiology, Heart Lung Center, Leiden University Medical Centre, Albinusdreef 2, 2300RC Leiden, The Netherlands
| | - Mohammed El Mahdiui
- Department of Cardiology, Heart Lung Center, Leiden University Medical Centre, Albinusdreef 2, 2300RC Leiden, The Netherlands
| | - Martin J Schalij
- Department of Cardiology, Heart Lung Center, Leiden University Medical Centre, Albinusdreef 2, 2300RC Leiden, The Netherlands
| | - Nina Ajmone Marsan
- Department of Cardiology, Heart Lung Center, Leiden University Medical Centre, Albinusdreef 2, 2300RC Leiden, The Netherlands
| | - Jeroen J Bax
- Department of Cardiology, Heart Lung Center, Leiden University Medical Centre, Albinusdreef 2, 2300RC Leiden, The Netherlands
| | - Victoria Delgado
- Department of Cardiology, Heart Lung Center, Leiden University Medical Centre, Albinusdreef 2, 2300RC Leiden, The Netherlands
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13
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Charisopoulou D, Koulaouzidis G, Law LF, Rydberg A, Henein MY. Exercise Induced Worsening of Mechanical Heterogeneity and Diastolic Impairment in Long QT Syndrome. J Clin Med 2020; 10:E37. [PMID: 33374442 DOI: 10.3390/jcm10010037] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 12/16/2020] [Accepted: 12/22/2020] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Electromechanical heterogeneities due to marked dispersion of ventricular repolarisation and mechanical function have been associated with symptoms in long QT syndrome (LQTS) patients; Aim: To examine the exercise response of longitudinal LV systolic and diastolic myocardial function and synchronicity in LQTS patients and its relationship with symptoms; Methods: Forty seven (age 45 ± 15 yrs, 25 female, 20 symptomatic) LQTS patients and 35 healthy individuals underwent an exercise test (Bruce protocol). ECG and echo parameters were recorded at rest, peak exercise (p.e.), and recovery; Results: LQTS patients had prolonged and markedly dispersed myocardial contraction, delayed early relaxation phase, and significantly decreased filling time at all exercise phases. Unlike controls, these electromechanical disturbances deteriorated further with exercise, during which additional decrease of the LV diastolic myocardial function and attenuated LV stroke volume were noted. Such abnormal responses to exercise were seen to a greater degree in symptomatic patients and in the LQT1 subgroup and improved with B-blocker therapy. Worsening myocardial contraction dispersion at p.e. was the strongest discriminator for previous clinical events, and its discriminating power excelled further by adding early relaxation delay; Conclusions: Electromechanical disturbances were shown to worsen during exercise in LQTS patients and were more pronounced in those with previous arrhythmic events.
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14
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Lohrmann G, Patel MA, Brauneis D, Sanchorawala V, Sarosiek S, Vellanki N, Siddiqi OK, Ruberg FL, Gopal DM. Left Atrial Mechanics Associates With Paroxysmal Atrial Fibrillation in Light-Chain Amyloidosis Following Stem Cell Transplantation. JACC CardioOncol 2020; 2:721-731. [PMID: 33511355 PMCID: PMC7839967 DOI: 10.1016/j.jaccao.2020.10.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Background Atrial fibrillation (AF) during high-dose melphalan and autologous stem-cell transplantation (HDM/SCT) for light-chain (AL) amyloidosis confers significant morbidity. Traditional risk factors provide limited prediction for development of paroxysmal AF during this vulnerable period. Objectives We sought to assess the association of clinical and echocardiographic parameters, including left atrial (LA) mechanics and development of AF in patients undergoing HDM/SCT therapy. Methods Baseline echocardiograms, electrocardiograms, and electronic medical records were retrospectively assessed among patients with AL amyloidosis before HDM/SCT (n = 91). LA function analysis was performed using speckle-tracking echocardiography. Results In this study, 42 patients (46%) had cardiac involvement; in the peri-transplant period, 12 (13%) developed AF (7 with cardiac involvement). No significant differences in age, sex, cardiac biomarkers, or cardiac risk factors were seen between patients with and without development of AF; one-third of patients with AF peri-transplant had previous AF. Although LA reservoir strain was reduced in patients with development of AF, time to peak strain rate indexed to R-R interval (TPSRI) (p = 0.001) was prolonged in patients with development of AF compared with sinus rhythm patients in the total cohort but also in subgroups with and without cardiac involvement. Conclusions TPSRI, a parameter of mechanical dispersion in the early reservoir phase of LA function, is associated with development of AF among patients undergoing HDM/SCT for AL amyloidosis. These findings require validation in larger prospective cohorts.
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Affiliation(s)
- Graham Lohrmann
- Department of Medicine, Boston University School of Medicine, Boston, Massachusetts, USA
| | - Monica Arun Patel
- Department of Medicine, Boston University School of Medicine, Boston, Massachusetts, USA
| | - Dina Brauneis
- Amyloidosis Center, Boston University School of Medicine, Boston, Massachusetts, USA
| | - Vaishali Sanchorawala
- Amyloidosis Center, Boston University School of Medicine, Boston, Massachusetts, USA.,Section of Hematology and Oncology, Department of Medicine, Boston, Massachusetts, USA
| | - Shayna Sarosiek
- Amyloidosis Center, Boston University School of Medicine, Boston, Massachusetts, USA.,Section of Hematology and Oncology, Department of Medicine, Boston, Massachusetts, USA
| | - Nirupama Vellanki
- Boston University School of Medicine, Boston University School of Medicine, Boston, Massachusetts, USA
| | - Omar K Siddiqi
- Amyloidosis Center, Boston University School of Medicine, Boston, Massachusetts, USA.,Cardiovascular Medicine Section, Department of Medicine, Boston University School of Medicine, Boston, Massachusetts, USA
| | - Frederick L Ruberg
- Amyloidosis Center, Boston University School of Medicine, Boston, Massachusetts, USA.,Cardiovascular Medicine Section, Department of Medicine, Boston University School of Medicine, Boston, Massachusetts, USA
| | - Deepa M Gopal
- Amyloidosis Center, Boston University School of Medicine, Boston, Massachusetts, USA.,Cardiovascular Medicine Section, Department of Medicine, Boston University School of Medicine, Boston, Massachusetts, USA
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15
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Affiliation(s)
- Marianna Fontana
- National Amyloidosis Centre, University College London, Royal Free Hospital, London, United Kingdom
| | - Rishi K Patel
- National Amyloidosis Centre, University College London, Royal Free Hospital, London, United Kingdom
| | - Ana Martinez-Naharro
- National Amyloidosis Centre, University College London, Royal Free Hospital, London, United Kingdom
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16
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Prihadi EA, Vollema EM, Ng ACT, Ajmone Marsan N, Bax JJ, Delgado V. Determinants and prognostic implications of left ventricular mechanical dispersion in aortic stenosis. Eur Heart J Cardiovasc Imaging 2020; 20:740-748. [PMID: 30726895 PMCID: PMC6593318 DOI: 10.1093/ehjci/jez004] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Accepted: 01/16/2018] [Indexed: 12/23/2022] Open
Abstract
AIMS The present study aimed at investigating the association between left ventricular (LV) mechanical dispersion measured with speckle tracking echocardiography and severity of aortic stenosis (AS) and its impact on prognosis. METHODS AND RESULTS This retrospective study included 630 patients [age 72 (62-78) years, 61.4% men] with various grades of AS (mild AS, 19.8%; moderate AS, 37.0%; severe AS, 43.2%). LV mechanical dispersion (defined as standard deviation of time from Q/R on electrocardiogram to peak longitudinal strain in 17 LV segments) was assessed by speckle tracking echocardiography. Clinical, electrocardiographic, and echocardiographic determinants of increased LV mechanical dispersion were evaluated. During a follow-up of 107 (43-133) months, the independent association between LV mechanical dispersion and all-cause mortality (n = 302, 48%) was evaluated including aortic valve replacement as time-dependent co-variate. LV mechanical dispersion increased significantly with increasing severity of AS (mild AS, 54.5 ± 17.2 ms; moderate AS, 56.7 ± 19.3 ms; severe AS, 70.9 ± 24.3 ms; P < 0.001). Independent determinants of increased mechanical dispersion included older age (β = 0.28; P = 0.003), lower LV ejection fraction (β = -0.24; P = 0.020), smaller aortic valve area (β = -8.55; P = 0.001), larger LV mass index (β = 0.20; P < 0.001), and longer QRS duration (β = 1.12 per each 10 ms increase; P = 0.012). LV mechanical dispersion showed incremental prognostic value for all-cause mortality (hazard ratio 1.10 per each 10 ms increase, 95% confidence interval 1.04-1.15; P < 0.001). CONCLUSION LV mechanical dispersion assessed by speckle tracking echocardiography increases significantly with severity of AS and is significantly associated with all-cause mortality.
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Affiliation(s)
- Edgard A Prihadi
- Department of Cardiology, Leiden University Medical Centre, Heart Lung Center, Albinusdreef 2, Leiden, The Netherlands
| | - E Mara Vollema
- Department of Cardiology, Leiden University Medical Centre, Heart Lung Center, Albinusdreef 2, Leiden, The Netherlands
| | - Arnold C T Ng
- Department of Cardiology, Leiden University Medical Centre, Heart Lung Center, Albinusdreef 2, Leiden, The Netherlands.,Antwerp Cardiovascular Center, ZNA Middelheim, Lindendreef 1, Antwerp, BelgiumDepartment of Cardiology, Princess Alexandra Hospital, The University of Queensland, 199 Ipswich Rd, Woolloongabba QLD, Australia
| | - Nina Ajmone Marsan
- Department of Cardiology, Leiden University Medical Centre, Heart Lung Center, Albinusdreef 2, Leiden, The Netherlands
| | - Jeroen J Bax
- Department of Cardiology, Leiden University Medical Centre, Heart Lung Center, Albinusdreef 2, Leiden, The Netherlands
| | - Victoria Delgado
- Department of Cardiology, Leiden University Medical Centre, Heart Lung Center, Albinusdreef 2, Leiden, The Netherlands
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17
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Cianciulli TF, Saccheri MC, Rísolo MA, Lax JA, Méndez RJ, Morita LA, Beck MA, Kazelián LR. Mechanical dispersion in Fabry disease assessed with speckle tracking echocardiography. Echocardiography 2020; 37:293-301. [PMID: 31957094 DOI: 10.1111/echo.14592] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 12/14/2019] [Accepted: 12/31/2019] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Fabry disease (FD) is a rare X-linked storage disorder caused by deficiency of the lysosomal enzyme α-galactosidase A, and it typically causes multiorgan dysfunction. The main cause of death is heart disease resulting from left ventricular (LV) diastolic dysfunction, LV systolic dysfunction, severe LV hypertrophy (LVH), and sudden death. In several cardiac disorders, LV systolic dysfunction and ventricular arrhythmias are associated with mechanical dispersion (MD). MD has until now not been studied in patients with FD. OBJECTIVE To investigate the prevalence of MD in patients with FD. METHODS Complete echocardiographic data and speckle tracking echocardiographic data were collected. MD is an index of inter-segmental discoordination of contraction and is defined as the standard deviation (SD) of the time-to-peak longitudinal negative strain in 17 LV segments with a value >49 milliseconds. Patients with FD were divided into the following 2 groups: group I (patients with FD but no LVH, n = 64) and group II (patients with FD and LVH, n = 25). These groups were compared with a group of healthy subjects (group III, n = 50). Parametric variables were expressed as mean ± SD, and nonparametric variables were expressed as median and inter-quartile range. A P value <.05 was considered significant. RESULTS A total of 113 patients with FD were included in this study. Of these, 24 (21%) were excluded because of poor imaging quality or presence of comorbidities, and the final study population consisted of 89 patients (mean age of 33.5 ± 14.5 years, 64% female). Group II patients were older than group I patients (46 ± 13 years vs 27 ± 11 years, P < .0001). There was no difference in LV ejection fraction between the 3 groups. There was also no difference in MD between groups I and III (32.4 ms [26-39] vs 32 ms [26-39]). In group II, the MD in 19 patients (76%) was 56 ms (39-80). CONCLUSIONS To the best of our knowledge, this is the first study to assess the prevalence of MD in patients with FD. MD was observed in 76% of patients with FD and LVH. The use of MD in strain echocardiography may be beneficial in the assessment of patients with FD who develop heart failure.
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Affiliation(s)
- Tomas F Cianciulli
- Echocardiography Laboratory, Division of Cardiology, "Dr. Cosme Argerich" Hospital of the Government of the City of Buenos Aires, Buenos Aires, Argentina.,Researcher of the Ministry of Health of the Government of the City of Buenos Aires, Buenos Aires, Argentina
| | - María C Saccheri
- Echocardiography Laboratory, Division of Cardiology, "Dr. Cosme Argerich" Hospital of the Government of the City of Buenos Aires, Buenos Aires, Argentina
| | - Mario A Rísolo
- Division of Cardiology, Medical Center of San Luis, San Luis, Argentina
| | - Jorge A Lax
- Echocardiography Laboratory, Division of Cardiology, "Dr. Cosme Argerich" Hospital of the Government of the City of Buenos Aires, Buenos Aires, Argentina
| | - Ricardo J Méndez
- Echocardiography Laboratory, Division of Cardiology, "Dr. Cosme Argerich" Hospital of the Government of the City of Buenos Aires, Buenos Aires, Argentina
| | - Luis A Morita
- Echocardiography Laboratory, Division of Cardiology, "Dr. Cosme Argerich" Hospital of the Government of the City of Buenos Aires, Buenos Aires, Argentina
| | - Martin A Beck
- Echocardiography Laboratory, Division of Cardiology, "Dr. Cosme Argerich" Hospital of the Government of the City of Buenos Aires, Buenos Aires, Argentina
| | - Lucia R Kazelián
- Echocardiography Laboratory, Division of Cardiology, "Dr. Cosme Argerich" Hospital of the Government of the City of Buenos Aires, Buenos Aires, Argentina
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Stankovic I, Janicijevic A, Dimic A, Stefanovic M, Vidakovic R, Putnikovic B, Neskovic AN. Mechanical dispersion is associated with poor outcome in heart failure with a severely depressed left ventricular function and bundle branch blocks. Ann Med 2018; 50:128-138. [PMID: 28972811 DOI: 10.1080/07853890.2017.1387282] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
OBJECTIVES Bundle branch blocks (BBB)-related mechanical dyssynchrony and dispersion may improve patient selection for device therapy, but their effect on the natural history of this patient population is unknown. METHODS A total of 155 patients with LVEF ≤ 35% and BBB, not treated with device therapy, were included. Mechanical dyssynchrony was defined as the presence of either septal flash or apical rocking. Contraction duration was assessed as time interval from the electrocardiographic R-(Q-)wave to peak longitudinal strain in each of 17 left ventricular segments. Mechanical dispersion was defined as either the standard deviation of all time intervals (dispersionSD) or as the difference between the longest and shortest time intervals (dispersiondelta). Patients were followed for cardiac mortality during a median period of 33 months. RESULTS Mechanical dyssynchrony was not associated with survival. More pronounced mechanical dispersiondelta was found in patients with dyssynchrony than in those without. In the multivariate regression analysis, patients' functional class, diabetes mellitus and dispersiondelta were independently associated with mortality. CONCLUSIONS Mechanical dispersion, but not dyssynchrony, was independently associated with mortality and it may be useful for risk stratification of patients with heart failure (HF) and BBB. Key Messages Mechanical dispersion, measured by strain echocardiography, is associated with poor outcome in heart failure with a severely depressed left ventricular function and bundle branch blocks. Mechanical dispersion may be useful for risk stratification of patients with heart failure and bundle branch blocks.
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Affiliation(s)
- Ivan Stankovic
- a Department of Cardiology, Clinical Hospital Center Zemun, Faculty of Medicine , University of Belgrade , Belgrade , Serbia
| | - Aleksandra Janicijevic
- a Department of Cardiology, Clinical Hospital Center Zemun, Faculty of Medicine , University of Belgrade , Belgrade , Serbia
| | - Aleksandra Dimic
- a Department of Cardiology, Clinical Hospital Center Zemun, Faculty of Medicine , University of Belgrade , Belgrade , Serbia
| | - Milica Stefanovic
- a Department of Cardiology, Clinical Hospital Center Zemun, Faculty of Medicine , University of Belgrade , Belgrade , Serbia
| | - Radosav Vidakovic
- a Department of Cardiology, Clinical Hospital Center Zemun, Faculty of Medicine , University of Belgrade , Belgrade , Serbia
| | - Biljana Putnikovic
- a Department of Cardiology, Clinical Hospital Center Zemun, Faculty of Medicine , University of Belgrade , Belgrade , Serbia
| | - Aleksandar N Neskovic
- a Department of Cardiology, Clinical Hospital Center Zemun, Faculty of Medicine , University of Belgrade , Belgrade , Serbia
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Mornoş C, Muntean D, Mornoş A, Crişan S, Petrescu L, Ionac A, Sosdean R, Cozma D. Risk stratification in patients with heart failure: the value of considering both global longitudinal left ventricular strain and mechanical dispersion. Can J Physiol Pharmacol 2017; 95:1360-1368. [PMID: 28738164 DOI: 10.1139/cjpp-2017-0049] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
In previous studies, mechanical dispersion (MD) predicted ventricular arrhythmias independently of left ventricular ejection fraction (LVEF). Moreover, the combination of MD and global longitudinal strain (GLS) increased the prediction of arrhythmic events. We investigated the prognostic value of a new 2-dimensional strain index, GLS/MD, in patients with heart failure (HF). We analyzed 340 consecutive HF outpatients in sinus rhythm. Echocardiography was performed at 1.6 ± 0.4 months after hospital discharge. The end point included sudden cardiac death, ventricular fibrillation, and sustained ventricular tachycardia (SCD/VA). During the follow-up period (36 ± 9 months), SCD/VA occurred in 48 patients (14.1%). A multivariate Cox regression analysis, which included LVEF, early diastolic transmitral / mitral annular velocity ratio (E/E'), GLS, MD, and GLS/MD in the model, revealed that GLS/MD was the best independent predictor of SCD/VA (HR = 3.22, 95% confidence interval = 1.72-6.15, p = 0.03). Separate inclusion of LVEF, systolic mitral annular velocity, E/E', GLS, and MD together with GLS/MD showed that GLS/MD remained the best predictor of SCD/VA (each p < 0.05). The optimal GLS/MD cutoff value to predict SCA/VA was -0.20%/ms (80% sensitivity, 76% specificity). Irrespective of LVEF, free survival was significantly better in patients with GLS/MD ≤ -0.2%/ms (log-rank test, p < 0.001). In conclusion, GLS/MD may improve cardiovascular risk stratification in subjects with HF.
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Affiliation(s)
- Cristian Mornoş
- a Victor Babeş University of Medicine and Pharmacy, Cardiology Clinic, Timişoara, Romania.,b Institute of Cardiovascular Diseases, Timişoara, Romania
| | - Danina Muntean
- a Victor Babeş University of Medicine and Pharmacy, Cardiology Clinic, Timişoara, Romania
| | - Aniko Mornoş
- b Institute of Cardiovascular Diseases, Timişoara, Romania
| | - Simina Crişan
- a Victor Babeş University of Medicine and Pharmacy, Cardiology Clinic, Timişoara, Romania
| | - Lucian Petrescu
- a Victor Babeş University of Medicine and Pharmacy, Cardiology Clinic, Timişoara, Romania.,b Institute of Cardiovascular Diseases, Timişoara, Romania
| | - Adina Ionac
- a Victor Babeş University of Medicine and Pharmacy, Cardiology Clinic, Timişoara, Romania.,b Institute of Cardiovascular Diseases, Timişoara, Romania
| | - Raluca Sosdean
- a Victor Babeş University of Medicine and Pharmacy, Cardiology Clinic, Timişoara, Romania
| | - Dragoş Cozma
- a Victor Babeş University of Medicine and Pharmacy, Cardiology Clinic, Timişoara, Romania.,b Institute of Cardiovascular Diseases, Timişoara, Romania
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Ersbøll M, Valeur N, Andersen MJ, Mogensen UM, Vinther M, Svendsen JH, Møller JE, Kisslo J, Velazquez EJ, Hassager C, Søgaard P, Køber L. Early echocardiographic deformation analysis for the prediction of sudden cardiac death and life-threatening arrhythmias after myocardial infarction. JACC Cardiovasc Imaging 2013; 6:851-60. [PMID: 23850252 DOI: 10.1016/j.jcmg.2013.05.009] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2013] [Revised: 05/24/2013] [Accepted: 05/30/2013] [Indexed: 11/16/2022]
Abstract
OBJECTIVES This study sought to hypothesize that global longitudinal strain (GLS) as a measure of infarct size, and mechanical dispersion (MD) as a measure of myocardial deformation heterogeneity, would be of incremental importance for the prediction of sudden cardiac death (SCD) or malignant ventricular arrhythmias (VA) after acute myocardial infarction (MI). BACKGROUND SCD after acute MI is a rare but potentially preventable late complication predominantly caused by malignant VA. Novel echocardiographic parameters such as GLS and MD have previously been shown to identify patients with chronic ischemic heart failure at increased risk for arrhythmic events. Risk prediction during admission for acute MI is important because a majority of SCD events occur in the early period after hospital discharge. METHODS We prospectively included patients with acute MI and performed echocardiography, with measurements of GLS and MD defined as the standard deviation of time to peak negative strain in all myocardial segments. The primary composite endpoint (SCD, admission with VA, or appropriate therapy from a primary prophylactic implantable cardioverter-defibrillator [ICD]) was analyzed with Cox models. RESULTS A total of 988 patients (mean age: 62.6 ± 12.1 years; 72% male) were included, of whom 34 (3.4%) experienced the primary composite outcome (median follow-up: 29.7 months). GLS (hazard ratio [HR]: 1.38; 95% confidence interval [CI]: 1.25 to 1.53; p < 0.0001) and MD (HR/10 ms: 1.38; 95% CI: 1.24 to 1.55; p < 0.0001) were significantly related to the primary endpoint. GLS (HR 1.24; 95% CI: 1.10 to 1.40; p = 0.0004) and MD (HR/10 ms: 1.15; 95% CI: 1.01 to 1.31; p = 0.0320) remained independently prognostic after multivariate adjustment. Integrated diagnostic improvement (IDI) and net reclassification index (NRI) were significant for the addition of GLS (IDI: 4.4% [p < 0.05]; NRI: 29.6% [p < 0.05]), whereas MD did not improve risk reclassification when GLS was known. CONCLUSIONS Both GLS and MD were significantly and independently related to SCD/VA in these patients with acute MI and, in particular, GLS improved risk stratification above and beyond existing risk factors.
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Affiliation(s)
- Mads Ersbøll
- The Heart Centre, Department of Cardiology, Rigshospitalet, Copenhagen University, Copenhagen, Denmark.
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