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Samir A, Nagy S, Abdelhamid M, Kandil H. Clinical, electrocardiographic, echocardiographic, and angiographic predictors for the final infarct size assessed by cardiac magnetic resonance in acute STEMI patients after primary percutaneous coronary intervention. Egypt Heart J 2024; 76:111. [PMID: 39180635 PMCID: PMC11344739 DOI: 10.1186/s43044-024-00526-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Accepted: 07/15/2024] [Indexed: 08/26/2024] Open
Abstract
BACKGROUND Final infarct size (IS) after ST segment elevation myocardial infarction (STEMI) is a major predictor of mortality. Seeking early predictors for final IS can guide individualized therapeutic strategies for those recognized to be at higher risk. RESULTS Eighty STEMI patients successfully treated with primary percutaneous coronary intervention (pPCI) underwent baseline (within 48 h) 2D, 3D echocardiography with speckle tracking and then underwent cardiac magnetic resonance (CMR) at 3 months to assess the final IS. After recruitment, 4 patients were excluded for uncontainable claustrophobia while 76 patients completed the final analysis. The mean ± standard deviation age was 54.1 ± 10.9 years, 84% were males, 25% had diabetes, 26% were hypertensives, 71% were current smokers, 82% had dyslipidemia, and 18% had a family history of premature coronary artery disease. By 3 months, CMR was performed to accurately evaluate the final IS. In univariate regression analysis, the admission heart rate, baseline and post-pPCI ST elevation, STEMI location (anterior vs. inferior), highest peri-procedural troponin, large thrombus burden, baseline thrombolysis in myocardial infarction flow grade, the final myocardial blush grade, the 2D and 3D left ventricular ejection fraction (LVEF), and the 2D and 3D global longitudinal strain (GLS) parameters were significant predictors for the final IS. In the multivariate regression analysis, four models were constructed and recognized the residual post-PCI ST segment elevation, the highest peri-procedural troponin, the 2D-LVEF, 3D-LVEF, and 2D-GLS as significant independent predictors for final IS. CONCLUSIONS In STEMI patients who underwent successful pPCI, early predictors for the final IS are vital to guide therapeutic decisions. The residual post-pPCI ST elevation, the highest peri-procedural troponin, and the baseline 2D-LVEF, 3D-LVEF, and 2D-GLS can be excellent and timely tools to predict the final IS.
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Affiliation(s)
- Ahmad Samir
- Faculty of Medicine, Cairo University, Cairo, Egypt.
| | - Sherif Nagy
- Faculty of Medicine, Cairo University, Cairo, Egypt
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Lima FVP, Andrade DDM, Filho JE, Souza PL, Azevedo LF, Coelho MM, de Lima JRP, Trevizan PF, Laterza MC, Martinez DG. Acute effect of ultramarathon on systolic and diastolic cardiac function: Systematic review and meta-analysis. Int J Cardiol 2024; 408:132106. [PMID: 38705202 DOI: 10.1016/j.ijcard.2024.132106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 04/09/2024] [Accepted: 04/26/2024] [Indexed: 05/07/2024]
Abstract
BACKGROUND Ultramarathon running poses physiological challenges, impacting cardiac function. This systematic review and meta-analysis explore the acute effects of single-stage ultramarathon running on cardiac function. METHODS Preferred Reporting Items for Systematic Reviews and Meta-Analyses recommendations were followed. Searches covered Medline, Embase, CINAHL, SPORTDiscus, Web of Science, Central Cochrane, and Scopus. Random effects meta-analyses assessed left ventricular (LV) and right ventricular (RV) variables, expressed as mean differences (MD) with 95% confidence intervals (CI). RESULTS Among 6972 studies, 17 were included. Post-ultramarathon reductions were found in LV end-diastolic diameter (LVEDD) (-1.24; 95% CI = -1.77, -0.71 mm), LV end-diastolic volume (LVEDV) (-9.92; 95% CI = -15.25, -4.60 ml), LV stroke volume (LVSV) (-8.96 ml, 95% CI -13.20, -4.72 ml), LV ejection fraction (LVEF) (-3.71; 95% CI = -5.21, -2.22%), LV global longitudinal strain (LVGLS) (-1.48; 95% CI = -2.21, -0.76%), E/A (-0.30; 95% CI = -0.38, -0.22 cm/s), .E' (-1.35 cm/s, 95% CI -1.91, -0.79 cm/s), RV fractional area change (RVFAC) (-3.34, 95% CI = -5.84, -0.84%), tricuspid annular plane systolic excursion (TAPSE) (-0.12, 95% CI = -0.22, -0.02 cm), RV global longitudinal strain (RVGLS) (-1.73, 95% CI = -2.87, -0.59%), with increases in RV end-diastolic area (RVEDA) (1.89, 95% CI = 0.63, 3.14 cm2), RV Peak A' (1.32 cm/s, 95% CI 0.20, 2.44), and heart rate (18.24, 95% CI = 15.16, 21.32). No significant differences were observed in LV end-systolic diameter (LVESD), LV end-systolic volume (LVESV), RV end-diastolic diameter (RVEDD), RV Peak E', and RV Peak S'. CONCLUSIONS Evidence suggests immediate impairment of systolic and diastolic cardiac function post-ultramarathon running.
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Affiliation(s)
- Francisco Veríssimo Perrout Lima
- Cardiovascular Research Unit and Exercise Physiology, Federal University of Juiz de Fora, Brazil. José Lourenço Kelmer, s/n, Martelos, Juiz de Fora 36036-900, Brazil.
| | - Diana de Medeiros Andrade
- Cardiovascular Research Unit and Exercise Physiology, Federal University of Juiz de Fora, Brazil. José Lourenço Kelmer, s/n, Martelos, Juiz de Fora 36036-900, Brazil
| | - José Elias Filho
- Federal University of Juiz de Fora, Brazil. José Lourenço Kelmer, s/n, Martelos, Juiz de Fora 36036-900, Brazil
| | - Pedro Lima Souza
- Cardiovascular Research Unit and Exercise Physiology, Federal University of Juiz de Fora, Brazil. José Lourenço Kelmer, s/n, Martelos, Juiz de Fora 36036-900, Brazil
| | - Luciene Ferreira Azevedo
- Echocardiography Unit, University of São Paulo. Av. Dr. Enéas de Carvalho Aguiar, São Paulo, SP 44 - 05403-900, Brazil
| | - Marcelo Martins Coelho
- Cardiovascular Research Unit and Exercise Physiology, Federal University of Juiz de Fora, Brazil. José Lourenço Kelmer, s/n, Martelos, Juiz de Fora 36036-900, Brazil
| | - Jorge Roberto Perrout de Lima
- Faculty of Physical Education and Sports, Federal University of Juiz de Fora. José Lourenço Kelmer, s/n, Martelos, Juiz de Fora 36036-900, Brazil
| | - Patrícia Fernandes Trevizan
- Department of Physical Therapy, Federal University of Minas Gerais. Av. Presidente Carlos Luz, 6627 - Pampulha, Belo Horizonte, MG 31310-25, Brazil
| | - Mateus Camaroti Laterza
- Cardiovascular Research Unit and Exercise Physiology, Federal University of Juiz de Fora, Brazil. José Lourenço Kelmer, s/n, Martelos, Juiz de Fora 36036-900, Brazil
| | - Daniel Godoy Martinez
- Cardiovascular Research Unit and Exercise Physiology, Federal University of Juiz de Fora, Brazil. José Lourenço Kelmer, s/n, Martelos, Juiz de Fora 36036-900, Brazil
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Labus J, Brand L, Feige K, Mehler O, Rahmanian P, Wahlers T, Böttiger BW, Wetsch WA, Mathes A. Intraoperative Assessment of Noninvasive Left Ventricular Myocardial Work Indices in Patients Undergoing Aortic Valve Replacement. J Cardiothorac Vasc Anesth 2024:S1053-0770(24)00440-3. [PMID: 39069381 DOI: 10.1053/j.jvca.2024.07.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 06/12/2024] [Accepted: 07/03/2024] [Indexed: 07/30/2024]
Abstract
OBJECTIVE Evaluation of noninvasive left ventricular (LV) myocardial work (MW) enables insights into cardiac contractility and efficacy beyond conventional echocardiography. However, there is limited intraoperative data on patients undergoing surgical aortic valve replacement (AVR). The aim of this study was to describe the feasibility and the intraoperative course of this technique of ventricular function assessment in these patients and compare it to conventional two (2D)- and three-dimensional (3D) echocardiographic measurements and strain analysis. DESIGN Prospective observational study. SETTING Single university hospital. PARTICIPANTS Twenty-five patients scheduled for isolated AVR with preoperative preserved left and right ventricular function, sinus rhythm, without significant other heart valve disease or pulmonary hypertension, and an uneventful intraoperative course. INTERVENTIONS Transesophageal echocardiography was performed after induction of anesthesia (T1), after termination of cardiopulmonary bypass (T2), and after sternal closure (T3). Evaluation was performed in stable hemodynamics, in sinus rhythm or atrial pacing and vasopressor support with norepinephrine ≤ 0.1 µg/kg/min. MEASUREMENTS AND MAIN RESULTS EchoPAC v206 software (GE Vingmed Ultrasound AS, Norway) was used for analysis of 2D and 3D LV ejection fraction (EF), LV global longitudinal strain (GLS), LV global work index (GWI), LV global constructive work (GCW), LV global wasted work (GWW), and LV global work efficiency (GWE). Estimation of myocardial work was feasible in all patients. Although there was no significant difference in the values of 2D and 3D EF, GWI and GCW decreased significantly after AVR (T1 v T2, 1,647 ± 380 mmHg% v 1,021 ± 233 mmHg%, p < 0.001; T1 v T2, 2,095 ± 433 mmHg% v 1,402 ± 242 mmHg%, p < 0.001, respectively), while GWW remained unchanged (T1 v T2, 296 mmHg% [IQR 178-452) v 309 mmHg% [IQR 255-438), p = 0.97). This resulted in a decreased GWE directly after bypass (T1 v T2, 84% ± 6% v 78% ± 5%, p < 0.001), but GWE already improved at the end of surgery (T2 v T3, 78% ± 5% v 81% ± 5%, p = 0.003). There was no significant change in the values of GWI, GCW, or 2D and 3D LVEF before and after sternal closure (T2 v T3). CONCLUSION LV MW analysis showed a reduction of LV workload after bypass in our group of patients, which was not detected by conventional echocardiographic measures. This evolving technique provides deeper insights into cardiac energetics and efficiency in the perioperative course of aortic valve replacement surgery.
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Affiliation(s)
- Jakob Labus
- Department of Anesthesiology and Intensive Care Medicine, University Hospital of Cologne, and Faculty of Medicine, University of Cologne, Cologne, Germany.
| | - Lukas Brand
- Department of Anesthesiology and Intensive Care Medicine, University Hospital of Cologne, and Faculty of Medicine, University of Cologne, Cologne, Germany
| | - Katharina Feige
- Department of Anesthesiology and Intensive Care Medicine, University Hospital of Cologne, and Faculty of Medicine, University of Cologne, Cologne, Germany
| | - Oliver Mehler
- Department of Anesthesiology and Intensive Care Medicine, University Hospital of Cologne, and Faculty of Medicine, University of Cologne, Cologne, Germany
| | - Parwis Rahmanian
- Department of Cardiothoracic Surgery, Heart Center, University Hospital of Cologne, and Faculty of Medicine, University of Cologne, Cologne, Germany
| | - Thorsten Wahlers
- Department of Cardiothoracic Surgery, Heart Center, University Hospital of Cologne, and Faculty of Medicine, University of Cologne, Cologne, Germany
| | - Bernd W Böttiger
- Department of Anesthesiology and Intensive Care Medicine, University Hospital of Cologne, and Faculty of Medicine, University of Cologne, Cologne, Germany
| | - Wolfgang A Wetsch
- Department of Anesthesiology and Intensive Care Medicine, University Hospital of Cologne, and Faculty of Medicine, University of Cologne, Cologne, Germany
| | - Alexander Mathes
- Department of Anesthesiology and Intensive Care Medicine, University Hospital of Cologne, and Faculty of Medicine, University of Cologne, Cologne, Germany
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Han PL, Li K, Jiang Y, Gao Y, Guo YK, Yang ZG, Li Y. Additive effect of admission hyperglycemia on left ventricular stiffness in patients following acute myocardial infarction verified by CMR tissue tracking. Cardiovasc Diabetol 2024; 23:210. [PMID: 38902730 PMCID: PMC11191232 DOI: 10.1186/s12933-024-02295-y] [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: 03/17/2024] [Accepted: 06/04/2024] [Indexed: 06/22/2024] Open
Abstract
BACKGROUND Stress hyperglycemia occurs frequently in patients following acute myocardial infarction (AMI) and may aggravate myocardial stiffness, but relevant evidence is still lacking. Accordingly, this study aimed to examine the impact of admission stress hyperglycemia on left ventricular (LV) myocardial deformation in patients following AMI. METHODS A total of 171 patients with first AMI (96 with normoglycemia and 75 with hyperglycemia) underwent cardiac magnetic resonance (CMR) examination were included. AMI patients were classified according to admission blood glucose level (aBGL): < 7.8 mmol/L (n = 96), 7.8-11.1 mmol/L (n = 41) and ≥ 11.1 mmol/L (n = 34). LV strains, including global radial/circumferential/longitudinal peak strain (PS)/peak systolic strain rate (PSSR)/peak diastolic strain rate (PDSR), were measured and compared between groups. Further, subgroup analyses were separately conducted for AMI patients with and without diabetes. Multivariate analysis was employed to assess the independent association between aBGL and LV global PS in AMI patients. RESULTS LV global PS, PSSR and PDSR were decreased in radial, circumferential and longitudinal directions in hyperglycemic AMI patients compared with normoglycemic AMI patients (all P < 0.05). These differences were more obvious in patients with diabetes than those without diabetes. AMI patients with aBGL between 7.8 and 11.1 mmol/L demonstrated significant decreased radial and longitudinal PS, radial PSSR, and radial and longitudinal PDSR than those with aBGL < 7.8 mmol/L (all P < 0.05). AMI patients with aBGL ≥ 11.1 mmol/L showed significantly decreased PS, PSSR and PDSR in all three directions than those with aBGL < 7.8 mmol/L, and decreased longitudinal PSSR than those with aBGL between 7.8 and 11.1 (all P < 0.05). Further, aBGL was significantly and independently associated with radial (β = - 0.166, P = 0.003) and longitudinal (β = 0.143, P = 0.008) PS. CONCLUSIONS Hyperglycemia may exacerbate LV myocardial stiffness in patients experienced first AMI, leading to reduction in LV strains. aBGL was an independent indicator of impaired LV global PS in AMI patients. Blood glucose monitoring is more valuable for AMI patients with diabetes.
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Affiliation(s)
- Pei-Lun Han
- Department of Radiology and West China Biomedical Big Data Center, West China Hospital, Sichuan University, Chengdu, China
| | - Kang Li
- Department of Radiology and West China Biomedical Big Data Center, West China Hospital, Sichuan University, Chengdu, China
- Med-X Center for Informatics, Sichuan University, Chengdu, China
- Shanghai Artificial Intelligence Laboratory, Shanghai, China
| | - Yu Jiang
- Department of Radiology and West China Biomedical Big Data Center, West China Hospital, Sichuan University, Chengdu, China
| | - Yue Gao
- Department of Radiology and West China Biomedical Big Data Center, West China Hospital, Sichuan University, Chengdu, China
| | - Ying-Kun Guo
- Department of Radiology, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Zhi-Gang Yang
- Department of Radiology and West China Biomedical Big Data Center, West China Hospital, Sichuan University, Chengdu, China.
| | - Yuan Li
- Department of Radiology and West China Biomedical Big Data Center, West China Hospital, Sichuan University, Chengdu, China.
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Robinson S, Ring L, Oxborough D, Harkness A, Bennett S, Rana B, Sutaria N, Lo Giudice F, Shun-Shin M, Paton M, Duncan R, Willis J, Colebourn C, Bassindale G, Gatenby K, Belham M, Cole G, Augustine D, Smiseth OA. The assessment of left ventricular diastolic function: guidance and recommendations from the British Society of Echocardiography. Echo Res Pract 2024; 11:16. [PMID: 38825710 PMCID: PMC11145885 DOI: 10.1186/s44156-024-00051-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Accepted: 05/13/2024] [Indexed: 06/04/2024] Open
Abstract
Impairment of left ventricular (LV) diastolic function is common amongst those with left heart disease and is associated with significant morbidity. Given that, in simple terms, the ventricle can only eject the volume with which it fills and that approximately one half of hospitalisations for heart failure (HF) are in those with normal/'preserved' left ventricular ejection fraction (HFpEF) (Bianco et al. in JACC Cardiovasc Imaging. 13:258-271, 2020. 10.1016/j.jcmg.2018.12.035), where abnormalities of ventricular filling are the cause of symptoms, it is clear that the assessment of left ventricular diastolic function (LVDF) is crucial for understanding global cardiac function and for identifying the wider effects of disease processes. Invasive methods of measuring LV relaxation and filling pressures are considered the gold-standard for investigating diastolic function. However, the high temporal resolution of trans-thoracic echocardiography (TTE) with widely validated and reproducible measures available at the patient's bedside and without the need for invasive procedures involving ionising radiation have established echocardiography as the primary imaging modality. The comprehensive assessment of LVDF is therefore a fundamental element of the standard TTE (Robinson et al. in Echo Res Pract7:G59-G93, 2020. 10.1530/ERP-20-0026). However, the echocardiographic assessment of diastolic function is complex. In the broadest and most basic terms, ventricular diastole comprises an early filling phase when blood is drawn, by suction, into the ventricle as it rapidly recoils and lengthens following the preceding systolic contraction and shortening. This is followed in late diastole by distension of the compliant LV when atrial contraction actively contributes to ventricular filling. When LVDF is normal, ventricular filling is achieved at low pressure both at rest and during exertion. However, this basic description merely summarises the complex physiology that enables the diastolic process and defines it according to the mechanical method by which the ventricles fill, overlooking the myocardial function, properties of chamber compliance and pressure differentials that determine the capacity for LV filling. Unlike ventricular systolic function where single parameters are utilised to define myocardial performance (LV ejection fraction (LVEF) and Global Longitudinal Strain (GLS)), the assessment of diastolic function relies on the interpretation of multiple myocardial and blood-flow velocity parameters, along with left atrial (LA) size and function, in order to diagnose the presence and degree of impairment. The echocardiographic assessment of diastolic function is therefore multifaceted and complex, requiring an algorithmic approach that incorporates parameters of myocardial relaxation/recoil, chamber compliance and function under variable loading conditions and the intra-cavity pressures under which these processes occur. This guideline outlines a structured approach to the assessment of diastolic function and includes recommendations for the assessment of LV relaxation and filling pressures. Non-routine echocardiographic measures are described alongside guidance for application in specific circumstances. Provocative methods for revealing increased filling pressure on exertion are described and novel and emerging modalities considered. For rapid access to the core recommendations of the diastolic guideline, a quick-reference guide (additional file 1) accompanies the main guideline document. This describes in very brief detail the diastolic investigation in each patient group and includes all algorithms and core reference tables.
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Affiliation(s)
| | - Liam Ring
- West Suffolk Hospital NHS Trust, Bury St Edmunds, UK
| | | | - Allan Harkness
- East Suffolk and North Essex NHS Foundation Trust, Colchester, UK
| | - Sadie Bennett
- University Hospital of the North Midlands, Stoke-On-Trent, UK
| | - Bushra Rana
- Imperial College Healthcare NHS Trust, London, UK
| | | | | | | | | | - Rae Duncan
- Newcastle Upon Tyne Hospitals NHS Foundation Trust, Newcastle, UK
| | | | | | | | | | - Mark Belham
- Addenbrookes Hospital, Cambridge University Hospitals, Cambridge, UK
| | - Graham Cole
- Imperial College Healthcare NHS Trust, London, UK
| | | | - Otto A Smiseth
- Division of Cardiovascular and Pulmonary Diseases, Oslo University Hospital, Rikshospitalet and University of Oslo, Oslo, Norway
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Haddad F, Saraste A, Santalahti KM, Pänkäälä M, Kaisti M, Kandolin R, Simonen P, Nammas W, Jafarian Dehkordi K, Koivisto T, Knuuti J, Mahaffey KW, Blomster JI. Smartphone-Based Recognition of Heart Failure by Means of Microelectromechanical Sensors. JACC. HEART FAILURE 2024; 12:1030-1040. [PMID: 38573263 DOI: 10.1016/j.jchf.2024.01.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 01/25/2024] [Accepted: 01/31/2024] [Indexed: 04/05/2024]
Abstract
BACKGROUND Heart failure (HF) is the leading cause of hospitalization in individuals over 65 years of age. Identifying noninvasive methods to detect HF may address the epidemic of HF. Seismocardiography which measures cardiac vibrations transmitted to the chest wall has recently emerged as a promising technology to detect HF. OBJECTIVES In this multicenter study, the authors examined whether seismocardiography using commercially available smartphones can differentiate control subjects from patients with stage C HF. METHODS Both inpatients and outpatients with HF were enrolled from Finland and the United States. Inpatients with HF were assessed within 2 days of admission, and outpatients were assessed in the ambulatory setting. In a prespecified pooled data analysis, algorithms were derived using logistic regression and then validated using a bootstrap aggregation method. RESULTS A total of 217 participants with HF (174 inpatients and 172 outpatients) and 786 control subjects from cardiovascular clinics were enrolled. The mean age of participants with acute HF was 64 ± 13 years, 64.9% were male, left ventricular ejection fraction was 39% ± 15%, and median N-terminal pro-B-type natriuretic peptide was 5,778 ng/L (Q1-Q3: 1,933-6,703). The majority (74%) of participants with HF had reduced EF, and 38% had atrial fibrillation. Across both HF cohorts, the algorithms had an area under the receiver operating characteristic curve of 0.95 with a sensitivity of 85%, specificity of 90%, and accuracy of 89% for the detection of HF, with a decision threshold of 0.5. The positive and negative likelihood ratios were 8.50 and 0.17, respectively. The accuracy of the algorithms was not significantly different in subgroups based on age, sex, body mass index, and atrial fibrillation. CONCLUSIONS Smartphone-based assessment of cardiac function using seismocardiography is feasible and differentiates patients with HF from control subjects with high diagnostic accuracy. (Recognition of Heart Failure With Micro Electro-mechanical Sensors FI; NCT04444583; Recognition of Heart Failure With Micro Electro-mechanical Sensors [NCT04378179]; Detection of Coronary Artery Disease With Micro Electro-mechanical Sensors; NCT04290091).
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Affiliation(s)
- Francois Haddad
- Stanford Center for Clinical Research, Stanford University School of Medicine, Palo Alto, California, USA.
| | - Antti Saraste
- Heart Center, Turku University Hospital, Turku, Finland; University of Turku, Turku, Finland
| | | | - Mikko Pänkäälä
- University of Turku, Turku, Finland; CardioSignal, Turku, Finland
| | - Matti Kaisti
- University of Turku, Turku, Finland; CardioSignal, Turku, Finland
| | | | | | - Wail Nammas
- Heart Center, Turku University Hospital, Turku, Finland
| | | | - Tero Koivisto
- University of Turku, Turku, Finland; CardioSignal, Turku, Finland
| | - Juhani Knuuti
- University of Turku, Turku, Finland; Turku PET Centre, Turku University Hospital, Turku, Finland
| | - Kenneth W Mahaffey
- Stanford Center for Clinical Research, Stanford University School of Medicine, Palo Alto, California, USA
| | - Juuso I Blomster
- University of Turku, Turku, Finland; CardioSignal, Turku, Finland; Research Services, Turku University Hospital, Turku, Finland
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Baturalp TB, Bozkurt S. Design and Analysis of a Polymeric Left Ventricular Simulator via Computational Modelling. Biomimetics (Basel) 2024; 9:269. [PMID: 38786479 PMCID: PMC11117906 DOI: 10.3390/biomimetics9050269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2024] [Revised: 04/12/2024] [Accepted: 04/27/2024] [Indexed: 05/25/2024] Open
Abstract
Preclinical testing of medical devices is an essential step in the product life cycle, whereas testing of cardiovascular implants requires specialised testbeds or numerical simulations using computer software Ansys 2016. Existing test setups used to evaluate physiological scenarios and test cardiac implants such as mock circulatory systems or isolated beating heart platforms are driven by sophisticated hardware which comes at a high cost or raises ethical concerns. On the other hand, computational methods used to simulate blood flow in the cardiovascular system may be simplified or computationally expensive. Therefore, there is a need for low-cost, relatively simple and efficient test beds that can provide realistic conditions to simulate physiological scenarios and evaluate cardiovascular devices. In this study, the concept design of a novel left ventricular simulator made of latex rubber and actuated by pneumatic artificial muscles is presented. The designed left ventricular simulator is geometrically similar to a native left ventricle, whereas the basal diameter and long axis length are within an anatomical range. Finite element simulations evaluating left ventricular twisting and shortening predicted that the designed left ventricular simulator rotates approximately 17 degrees at the apex and the long axis shortens around 11 mm. Experimental results showed that the twist angle is 18 degrees and the left ventricular simulator shortens 5 mm. Twist angles and long axis shortening as in a native left ventricle show it is capable of functioning like a native left ventricle and simulating a variety of scenarios, and therefore has the potential to be used as a test platform.
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Affiliation(s)
- Turgut Batuhan Baturalp
- Department of Mechanical Engineering, Texas Tech University, P.O. Box 41021, Lubbock, TX 79409, USA
| | - Selim Bozkurt
- School of Engineering, Ulster University, York Street, Belfast BT15 1AP, UK
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8
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Petoello E, Flore AI, Nogara S, Bonafiglia E, Lenzi MB, Arnone OC, Benfari G, Ciarcià M, Corsini I, De Waal K, Gottin L, Ficial B. Global longitudinal strain is an informative index of left ventricular performance in neonates receiving intensive care. Sci Rep 2024; 14:8881. [PMID: 38632330 PMCID: PMC11024117 DOI: 10.1038/s41598-024-59441-5] [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: 01/22/2024] [Accepted: 04/10/2024] [Indexed: 04/19/2024] Open
Abstract
Echocardiographic assessment of left ventricular function is crucial in NICU. The study aimed to compare the accuracy and agreement of global longitudinal strain (GLS) with conventional measurements. Real-life echocardiograms of neonates receiving intensive care were retrospectively reviewed. Shortening fraction (SF), ejection fraction (EF) and S' measurements were retrieved from health records. GLS was calculated offline from stored images. The association with stroke volume indexed for body weight (iSV) was evaluated by regression analysis. The diagnostic ability to identify uncompensated shock was assessed by ROC curve analysis. Cohen's κ was run to assess agreement. 334 echocardiograms of 155 neonates were evaluated. Mean ± SD gestational age and birth weight were 34.5 ± 4.1 weeks and 2264 ± 914 g, respectively. SF, EF, S' and GLS were associated with iSV with R2 of 0.133, 0.332, 0.252 and 0.633, (all p < .001). Including all variables in a regression model, iSV prediction showed an adjusted R2 of 0.667, (p < .001). GLS explained 73% of the model variance. GLS showed a better ability to diagnose uncompensated shock (AUC 0.956) compared to EF, S' and SF (AUC 0.757, 0.737 and 0.606, respectively). GLS showed a moderate agreement with EF (κ = .500, p < .001) and a limited agreement with S' and SF (κ = .260, p < .001, κ = .242, p < .001). GLS was a more informative index of left ventricular performance, providing the rationale for a more extensive use of GLS at the cotside.
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Affiliation(s)
- Enrico Petoello
- Neonatal Intensive Care Unit, University and Hospital Trust of Verona, P.le A. Stefani 1, 37126, Verona, Italy
| | - Alice Iride Flore
- Neonatal Intensive Care Unit, University and Hospital Trust of Verona, P.le A. Stefani 1, 37126, Verona, Italy
| | - Silvia Nogara
- Neonatal Intensive Care Unit, University and Hospital Trust of Verona, P.le A. Stefani 1, 37126, Verona, Italy
| | - Elena Bonafiglia
- Neonatal Intensive Care Unit, University and Hospital Trust of Verona, P.le A. Stefani 1, 37126, Verona, Italy
| | - Maria Beatrice Lenzi
- Neonatal Intensive Care Unit, University and Hospital Trust of Verona, P.le A. Stefani 1, 37126, Verona, Italy
| | - Olivia C Arnone
- Neonatal Intensive Care Unit, University and Hospital Trust of Verona, P.le A. Stefani 1, 37126, Verona, Italy
| | - Giovanni Benfari
- Section of Cardiology, Department of Medicine, University of Verona, Verona, Italy
| | - Martina Ciarcià
- Neonatal Intensive Care Unit, University and Hospital Trust of Verona, P.le A. Stefani 1, 37126, Verona, Italy
| | - Iuri Corsini
- Division of Neonatology, Careggi University Hospital of Florence, Florence, Italy
| | - Koert De Waal
- Department of Neonatology, John Hunter Children's Hospital, Newcastle, NSW, Australia
- University of Newcastle, Newcastle, NSW, Australia
| | - Leonardo Gottin
- Intensive Care Unit, Department of Surgery, Dentistry, Maternity and Infant, University and Hospital Trust of Verona, Verona, Italy
| | - Benjamim Ficial
- Neonatal Intensive Care Unit, University and Hospital Trust of Verona, P.le A. Stefani 1, 37126, Verona, Italy.
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Raisi-Estabragh Z, Szabo L, Schuermans A, Salih AM, Chin CWL, Vágó H, Altmann A, Ng FS, Garg P, Pavanello S, Marwick TH, Petersen SE. Noninvasive Techniques for Tracking Biological Aging of the Cardiovascular System: JACC Family Series. JACC Cardiovasc Imaging 2024:S1936-878X(24)00082-2. [PMID: 38597854 DOI: 10.1016/j.jcmg.2024.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 03/01/2024] [Accepted: 03/01/2024] [Indexed: 04/11/2024]
Abstract
Population aging is one of the most important demographic transformations of our time. Increasing the "health span"-the proportion of life spent in good health-is a global priority. Biological aging comprises molecular and cellular modifications over many years, which culminate in gradual physiological decline across multiple organ systems and predispose to age-related illnesses. Cardiovascular disease is a major cause of ill health and premature death in older people. The rate at which biological aging occurs varies across individuals of the same age and is influenced by a wide range of genetic and environmental exposures. The authors review the hallmarks of biological cardiovascular aging and their capture using imaging and other noninvasive techniques and examine how this information may be used to understand aging trajectories, with the aim of guiding individual- and population-level interventions to promote healthy aging.
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Affiliation(s)
- Zahra Raisi-Estabragh
- William Harvey Research Institute, NIHR Barts Biomedical Research Centre, Queen Mary University of London, London, United Kingdom; Barts Heart Centre, St. Bartholomew's Hospital, Barts Health NHS Trust, London, United Kingdom.
| | - Liliana Szabo
- William Harvey Research Institute, NIHR Barts Biomedical Research Centre, Queen Mary University of London, London, United Kingdom; Barts Heart Centre, St. Bartholomew's Hospital, Barts Health NHS Trust, London, United Kingdom; Semmelweis University, Heart and Vascular Center, Budapest, Hungary
| | - Art Schuermans
- Faculty of Medicine, KU Leuven, Leuven, Belgium; Program in Medical and Population Genetics, Broad Institute of Harvard and Massachusetts Institute of Technology, Cambridge, Massachusetts, USA; Cardiovascular Research Center, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Ahmed M Salih
- William Harvey Research Institute, NIHR Barts Biomedical Research Centre, Queen Mary University of London, London, United Kingdom; Department of Population Health Sciences, University of Leicester, Leicester UK; Department of Computer Science, Faculty of Science, University of Zakho, Zakho, Kurdistan Region, Iraq
| | - Calvin W L Chin
- Department of Cardiology, National Heart Centre Singapore, Singapore, Singapore; Cardiovascular Academic Clinical Programme, Duke National University of Singapore Medical School, Singapore, Singapore
| | - Hajnalka Vágó
- Semmelweis University, Heart and Vascular Center, Budapest, Hungary
| | - Andre Altmann
- Centre for Medical Image Computing, Department of Medical Physics and Biomedical Engineering, University College London, London, United Kingdom
| | - Fu Siong Ng
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Pankaj Garg
- University of East Anglia, Norwich Medical School, Norwich, United Kingdom; Norfolk and Norwich University Hospitals NHS Foundation Trust, Norwich, United Kingdom
| | - Sofia Pavanello
- Occupational Medicine, Department of Cardio-Thoraco-Vascular Sciences and Public Health, University of Padua, Padua, Italy; Padua Hospital, Occupational Medicine Unit, Padua, Italy; University Center for Space Studies and Activities "Giuseppe Colombo" - CISAS, University of Padua, Padua, Italy
| | | | - Steffen E Petersen
- William Harvey Research Institute, NIHR Barts Biomedical Research Centre, Queen Mary University of London, London, United Kingdom; Barts Heart Centre, St. Bartholomew's Hospital, Barts Health NHS Trust, London, United Kingdom; Health Data Research UK, London, United Kingdom
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10
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Ficial B, Benfari G, Bonafiglia E, Clemente M, Cappelleri A, Flore AI, Petoello E, Ciarcià M, Nogara S, Milocchi C, Dani C, Ribichini FL, Gottin L, Corsini I. Tissue-Tracking Mitral Annular Displacement in Neonates: A Novel Index of Left Ventricular Systolic Function. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2024; 43:729-739. [PMID: 38140738 DOI: 10.1002/jum.16399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 11/23/2023] [Accepted: 12/11/2023] [Indexed: 12/24/2023]
Abstract
OBJECTIVES To assess the feasibility, accuracy, and reproducibility of tissue-tracking mitral annular displacement (TMAD) compared with other measures of left ventricular systolic function in healthy preterm and term neonates in the transitional period. METHODS This was a prospective observational study. Two echocardiograms were performed at 24 and 48 hours of life. TMAD, shortening fraction (SF), ejection fraction (EF), s', and global longitudinal strain (GLS) were measured offline. Accuracy to detect impaired GLS was tested by ROC curve analysis. DeLong test was used to compare AUCs. Intra and interobserver reproducibility of the off-line analysis was calculated. RESULTS Mean ± SD gestational age and weight were 34.2 ± 3.8 weeks and 2162 ± 833 g, respectively. TMAD was feasible in 168/180 scans (93%). At 24 hours the AUC (95% CI) of SF, EF, s', and TMAD (%) was 0.51 (0.36-0.67), 0.68 (0.54-0.82), 0.63 (0.49-0.77), and 0.89 (0.79-0.99) respectively. At 48 hours the AUC (95% CI) of SF, EF, s', and TMAD (%) was 0.64 (0.51-0.77), 0.59 (0.37-0.80), 0.70 (0.54-0.86), and 0.96 (0.91-1.00), respectively. The AUC of TMAD was superior to the AUC of SF, EF, s', at both timepoints (P < .02). Intraclass correlation coefficients (95% CI) of intra and interobserver reproducibility of TMAD were 0.97 (0.95-0.99) and 0.94 (0.88-0.97), respectively. CONCLUSION TMAD showed improved accuracy and optimal reproducibility in neonates in the first 48 hours of life.
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Affiliation(s)
- Benjamim Ficial
- Neonatal Intensive Care Unit, University and Hospital Trust of Verona, Verona, Italy
| | - Giovanni Benfari
- Section of Cardiology, Department of Medicine, University of Verona, Verona, Italy
| | - Elena Bonafiglia
- Neonatal Intensive Care Unit, University and Hospital Trust of Verona, Verona, Italy
| | - Maria Clemente
- Neonatal Intensive Care Unit, University and Hospital Trust of Verona, Verona, Italy
| | - Alessia Cappelleri
- Neonatal Intensive Care Unit, University and Hospital Trust of Verona, Verona, Italy
| | - Alice Iride Flore
- Neonatal Intensive Care Unit, University and Hospital Trust of Verona, Verona, Italy
| | - Enrico Petoello
- Neonatal Intensive Care Unit, University and Hospital Trust of Verona, Verona, Italy
| | - Martina Ciarcià
- Division of Neonatology, Careggi University Hospital of Florence, Florence, Italy
| | - Silvia Nogara
- Neonatal Intensive Care Unit, University and Hospital Trust of Verona, Verona, Italy
| | - Carlotta Milocchi
- Neonatal Intensive Care Unit, University and Hospital Trust of Verona, Verona, Italy
| | - Carlo Dani
- Division of Neonatology, Careggi University Hospital of Florence, Florence, Italy
| | | | - Leonardo Gottin
- Intensive Care Unit, Department of Surgery, Dentistry, Maternity and Infant, University and Hospital Trust of Verona, Verona, Italy
| | - Iuri Corsini
- Division of Neonatology, Careggi University Hospital of Florence, Florence, Italy
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11
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Pruszczyk A, Zawadka M, Andruszkiewicz P, LaVia L, Herpain A, Sato R, Dugar S, Chew MS, Sanfilippo F. Mortality in patients with septic cardiomyopathy identified by longitudinal strain by speckle tracking echocardiography: An updated systematic review and meta-analysis with trial sequential analysis. Anaesth Crit Care Pain Med 2024; 43:101339. [PMID: 38128732 DOI: 10.1016/j.accpm.2023.101339] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 11/27/2023] [Accepted: 12/04/2023] [Indexed: 12/23/2023]
Abstract
BACKGROUND Septic cardiomyopathy is associated with poor outcomes but its definition remains unclear. In a previous meta-analysis, left ventricular (LV) longitudinal strain (LS) showed significant prognostic value in septic patients, but findings were not robust due to a limited number of studies, differences in effect size and no adjustment for confounders. METHODS We conducted an updated systematic review (PubMed and Scopus up to 14.02.2023) and meta-analysis to investigate the association between LS and survival in septic patients. We included studies reporting global (from three apical views) or regional LS (one or two apical windows). A secondary analysis evaluated the association between LV ejection fraction (EF) and survival using data from the selected studies. RESULTS We included fourteen studies (1678 patients, survival 69.6%) and demonstrated an association between better performance (more negative LS) and survival with a mean difference (MD) of -1.45%[-2.10, -0.80] (p < 0.0001;I2 = 42%). No subgroup differences were found stratifying studies according to number of views used to calculate LS (p = 0.31;I2 = 16%), severity of sepsis (p = 0.42;I2 = 0%), and sepsis criteria (p = 0.59;I2 = 0%). Trial sequential analysis and sensitivity analyses confirmed the primary findings. Grade of evidence was low. In the included studies, thirteen reported LVEF and we found an association between higher LVEF and survival (MD = 2.44% [0.44,4.45]; p = 0.02;I2 = 42%). CONCLUSIONS We confirmed that more negative LS values are associated with higher survival in septic patients. The clinical relevance of this difference and whether the use of LS may improve understanding of septic cardiomyopathy and prognostication deserve further investigation. The association found between LVEF and survival is of unlikely clinical meaning. REGISTRATION PROSPERO number CRD42023432354.
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Affiliation(s)
- Andrzej Pruszczyk
- 2nd Department of Anesthesiology and Intensive Care, Medical University of Warsaw, Poland
| | - Mateusz Zawadka
- 2nd Department of Anesthesiology and Intensive Care, Medical University of Warsaw, Poland
| | - Pawel Andruszkiewicz
- 2nd Department of Anesthesiology and Intensive Care, Medical University of Warsaw, Poland
| | - Luigi LaVia
- Department of Anesthesia and Intensive Care, "Policlinico-San Marco" University Hospital, Catania, Italy
| | - Antoine Herpain
- Department of Intensive Care, St.-Pierre University Hospital, Université Libre de Bruxelles, 1050 Brussels, Belgium; Experimental Laboratory of Intensive Care, Université Libre de Bruxelles, 1050 Brussels, Belgium
| | - Ryota Sato
- Department of Critical Care Medicine, Respiratory Institute, Cleveland Clinic, Cleveland, OH, United States
| | - Siddharth Dugar
- Department of Critical Care Medicine, Respiratory Institute, Cleveland Clinic, Cleveland, OH, United States
| | - Michelle S Chew
- Department of Anaesthesia and Intensive Care, Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Filippo Sanfilippo
- Department of Anesthesia and Intensive Care, "Policlinico-San Marco" University Hospital, Catania, Italy; Department of General Surgery and Medico-Surgical Specialties, School of Anaesthesia and Intensive Care, University of Catania, Catania, Italy.
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12
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Qian Y, Zhao X, Chen BH, An DA, Wu R, Shi RY, Zhang C, Ma X, Zhou Y, Zhao L, Wu LM. Right ventricular global strain in patients with hypertrophic cardiomyopathy with and without right ventricular hypertrophy. Eur J Radiol 2023; 169:111148. [PMID: 37871355 DOI: 10.1016/j.ejrad.2023.111148] [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: 06/08/2023] [Revised: 09/12/2023] [Accepted: 10/10/2023] [Indexed: 10/25/2023]
Abstract
PURPOSE Regardless of whether there are morphological abnormalities of right ventricle in hypertrophic cardiomyopathy (HCM) patients, the exact contribution of right ventricular (RV) global strains remains unresolved. We aimed to study the prognostic value of RV global strains in HCM patients with and without RV hypertrophy (RVH). METHOD A total of 358 HCM patients who underwent the CMR examination and carried out the follow-up were finally included in this retrospective study. The endpoint was a composite of all-cause mortality, aborted SCD, and heart failure readmission. RV hypertrophy (RVH) was defined as maximal RVWT ≥ 5 mm at end-diastole. RV global strains (RV global longitudinal strain (GLS) and RV global circumferential strain (GCS) were measured in HCM patients by cardiac MRI feature tracking technique. The intraobserver and interobserver reproducibility were evaluated. Receiver-operating characteristic curves and Kaplan-Meier curves, cox proportional hazards regression, Likelihood ratio test and Integrated Discrimination Improvement (IDI) analysis were performed. P-value were corrected for multiple testing when using many covariables by a false discovery rate adjustment. RESULTS Over a median follow-up of 25 (range 3-54) months, 49 patients reached the composite endpoints. HCM patients were divided into the RVH group and non-RVH groups. In the multivariate cox proportional hazards regression, after adjusting multiple clinical and imaging variables, RV GLS and RV GCS were independently associated with the composite endpoints in the RVH group (HR: 1.123; 95 % CI: 1.048-1.205; P = 0.002) and non-RVH group (HR: 1.174; 95 % CI: 1.031-1.337; P = 0.015), respectively. And The IDI index of models improved when adding RV GLS (IDI = 0.030, p < 0.001) and RV GLS (IDI = 0.056, p = 0.020), respectively. CONCLUSIONS RV GLS and RV GCS are independent predictors of HCM with RVH and without RVH, respectively. RV GLS in the RVH group and RV GCS in the non-RVH group provide additional values for predicting the risk of adverse events.
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Affiliation(s)
- Yufan Qian
- Department of Radiology, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - Xinghan Zhao
- Department of Interventional Diagnosis and Treatment, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - Bing-Hua Chen
- Department of Radiology, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - Dong-Aolei An
- Department of Radiology, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - Rui Wu
- Department of Radiology, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - Ruo-Yang Shi
- Department of Radiology, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - Chen Zhang
- Department of Interventional Diagnosis and Treatment, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - Xiaohai Ma
- Department of Interventional Diagnosis and Treatment, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - Yan Zhou
- Department of Radiology, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - Lei Zhao
- Department of Radiology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China.
| | - Lian-Ming Wu
- Department of Radiology, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China.
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13
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Bengel FM, Diekmann J, Hess A, Jerosch-Herold M. Myocardial Fibrosis: Emerging Target for Cardiac Molecular Imaging and Opportunity for Image-Guided Therapy. J Nucl Med 2023; 64:49S-58S. [PMID: 37918842 DOI: 10.2967/jnumed.122.264867] [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: 06/20/2023] [Revised: 09/25/2023] [Indexed: 11/04/2023] Open
Abstract
Myocardial fibrosis is a major contributor to the development and progression of heart failure. Significant progress in the understanding of its pathobiology has led to the introduction and preclinical testing of multiple highly specific antifibrotic therapies. Because the mechanisms of fibrosis are highly dynamic, and because the involved cell populations are heterogeneous and plastic, there is increasing emphasis that any therapy directed specifically against myocardial fibrosis will require personalization and guidance by equally specific diagnostic testing for successful clinical translation. Noninvasive imaging techniques have undergone significant progress and provide increasingly specific information about the quantity, quality, and activity of myocardial fibrosis. Cardiac MRI can precisely map the extracellular space of the myocardium, whereas nuclear imaging characterizes activated fibroblasts and immune cells as the cellular components contributing to fibrosis. Existing techniques may be used in complementarity to provide the imaging biomarkers needed for the success of novel targeted therapies. This review provides a road map on how progress in basic fibrosis research, antifibrotic drug development, and high-end noninvasive imaging may come together to facilitate the success of fibrosis-directed cardiovascular medicine.
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Affiliation(s)
- Frank M Bengel
- Department of Nuclear Medicine, Hannover Medical School, Hannover, Germany; and
| | - Johanna Diekmann
- Department of Nuclear Medicine, Hannover Medical School, Hannover, Germany; and
| | - Annika Hess
- Department of Nuclear Medicine, Hannover Medical School, Hannover, Germany; and
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14
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Labus J, Foit A, Mehler O, Rahmanian P, Wahlers T, Böttiger BW, Wetsch WA, Mathes A. Intraoperative Augmented Rotation and Circumferential Strain Compensate for Reduction of Left Ventricular Longitudinal Function After On-Pump CABG Surgery. J Cardiothorac Vasc Anesth 2023; 37:1912-1921. [PMID: 37393132 DOI: 10.1053/j.jvca.2023.06.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 05/25/2023] [Accepted: 06/06/2023] [Indexed: 07/03/2023]
Abstract
OBJECTIVES Left ventricular (LV) longitudinal function is reduced after on-pump coronary artery bypass grafting (CABG), while global LV function often is preserved. There are only limited data on the underlying compensatory mechanism. Therefore, the authors aimed to describe intraoperative changes of LV contractile pattern by myocardial strain analysis. DESIGN A prospective observational study. SETTING At a single university hospital. PARTICIPANTS A total of 30 patients scheduled for isolated on-pump CABG with an uneventful intraoperative course and preoperative preserved LV and RV function, sinus rhythm, without more-than-mild heart valve disease, or elevated pulmonary pressure. INTERVENTIONS Transesophageal echocardiography was performed after induction of anesthesia (T1), after termination of cardiopulmonary bypass (T2), and after sternal closure (T3). Echocardiographic evaluation was performed under stable hemodynamics, in sinus rhythm or atrial pacing, and vasopressor support with norepinephrine ≤0.1 µg/kg/min. MEASUREMENTS AND MAIN RESULTS EchoPAC v204 software (GE Vingmed Ultrasound AS, Norway) was used for analysis of 2-dimensional (2D) and 3-dimensional (3D) LV ejection fraction (EF), LV global longitudinal strain (GLS), LV global circumferential strain (GCS), LV global radial strain (GRS), LV apical rotation (aRot), LV basal rotation (bRot), and LV twist. Strain analysis was feasible in all included patients after termination of cardiopulmonary bypass (T2). Although there were no significant differences in the values of conventional echocardiographic parameters during the intraoperative interval, GLS deteriorated significantly after CABG compared to pre-bypass assessment (T1 v T2, -13.4% ± 2.9 v -11.8% ± 2.9; p = 0.007). GCS improved significantly after surgery (T1 v T2, -19.4% (IQR -17.1% to -21.2%) v -22.8% (IQR -21.1% to -24.7%); p < 0.001) as well as aRot (T1 v T2, -9.7° (IQR -7.1° to -14.1°) v -14.5° (IQR -12.1° to -17.1°); p < 0.001), bRot (T1 v T2, 5.1° (IQR 3.8°-6.7°) v 7.2° (IQR 5.6°-8.2°); p = 0.02), and twist (T1 v T2, 15.8° (IQR 11.7°-19.4°) v 21.6° (IQR 19.2°-25.1°); p < 0.001), while GRS remained unchanged. There were no significant changes in the values of GLS, GCS, GRS, aRot, bRot, or twist, as well as in the values of 2D and 3D LV EF before and after sternal closure (T2 v T3). CONCLUSION Beyond evaluation of longitudinal LV strain, measurements of circumferential and radial strain, as well as LV rotation and twist mechanics, were feasible in the intraoperative course of this study. Reduction of longitudinal function after on-pump CABG was compensated intraoperatively by improvement of GCS and rotation in the authors' group of patients. Perioperative assessment of GCS, GRS, as well as rotation and twist, might provide deeper insight into perioperative changes of cardiac mechanics.
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Affiliation(s)
- Jakob Labus
- Department of Anesthesiology and Intensive Care Medicine, University Hospital of Cologne, and Faculty of Medicine, University of Cologne, Cologne, Germany.
| | - André Foit
- Department of Anesthesiology and Intensive Care Medicine, University Hospital of Cologne, and Faculty of Medicine, University of Cologne, Cologne, Germany
| | - Oliver Mehler
- Department of Anesthesiology and Intensive Care Medicine, University Hospital of Cologne, and Faculty of Medicine, University of Cologne, Cologne, Germany
| | - Parwis Rahmanian
- Department of Cardiothoracic Surgery, Heart Center, University Hospital of Cologne, and Faculty of Medicine, University of Cologne, Cologne, Germany
| | - Thorsten Wahlers
- Department of Cardiothoracic Surgery, Heart Center, University Hospital of Cologne, and Faculty of Medicine, University of Cologne, Cologne, Germany
| | - Bernd W Böttiger
- Department of Anesthesiology and Intensive Care Medicine, University Hospital of Cologne, and Faculty of Medicine, University of Cologne, Cologne, Germany
| | - Wolfgang A Wetsch
- Department of Anesthesiology and Intensive Care Medicine, University Hospital of Cologne, and Faculty of Medicine, University of Cologne, Cologne, Germany
| | - Alexander Mathes
- Department of Anesthesiology and Intensive Care Medicine, University Hospital of Cologne, and Faculty of Medicine, University of Cologne, Cologne, Germany
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15
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Choi S, Lee KY, Kim SL, MacQueen LA, Chang H, Zimmerman JF, Jin Q, Peters MM, Ardoña HAM, Liu X, Heiler AC, Gabardi R, Richardson C, Pu WT, Bausch AR, Parker KK. Fibre-infused gel scaffolds guide cardiomyocyte alignment in 3D-printed ventricles. NATURE MATERIALS 2023; 22:1039-1046. [PMID: 37500957 PMCID: PMC10686196 DOI: 10.1038/s41563-023-01611-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 06/19/2023] [Indexed: 07/29/2023]
Abstract
Hydrogels are attractive materials for tissue engineering, but efforts to date have shown limited ability to produce the microstructural features necessary to promote cellular self-organization into hierarchical three-dimensional (3D) organ models. Here we develop a hydrogel ink containing prefabricated gelatin fibres to print 3D organ-level scaffolds that recapitulate the intra- and intercellular organization of the heart. The addition of prefabricated gelatin fibres to hydrogels enables the tailoring of the ink rheology, allowing for a controlled sol-gel transition to achieve precise printing of free-standing 3D structures without additional supporting materials. Shear-induced alignment of fibres during ink extrusion provides microscale geometric cues that promote the self-organization of cultured human cardiomyocytes into anisotropic muscular tissues in vitro. The resulting 3D-printed ventricle in vitro model exhibited biomimetic anisotropic electrophysiological and contractile properties.
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Affiliation(s)
- Suji Choi
- Disease Biophysics Group, John A. Paulson School of Engineering and Applied Sciences, Harvard University, Boston, MA, USA
| | - Keel Yong Lee
- Disease Biophysics Group, John A. Paulson School of Engineering and Applied Sciences, Harvard University, Boston, MA, USA
- Department of Integrative Bioscience and Biotechnology, Sejong University, Seoul, Republic of Korea
| | - Sean L Kim
- Disease Biophysics Group, John A. Paulson School of Engineering and Applied Sciences, Harvard University, Boston, MA, USA
| | - Luke A MacQueen
- Disease Biophysics Group, John A. Paulson School of Engineering and Applied Sciences, Harvard University, Boston, MA, USA
| | - Huibin Chang
- Disease Biophysics Group, John A. Paulson School of Engineering and Applied Sciences, Harvard University, Boston, MA, USA
| | - John F Zimmerman
- Disease Biophysics Group, John A. Paulson School of Engineering and Applied Sciences, Harvard University, Boston, MA, USA
| | - Qianru Jin
- Disease Biophysics Group, John A. Paulson School of Engineering and Applied Sciences, Harvard University, Boston, MA, USA
| | - Michael M Peters
- Disease Biophysics Group, John A. Paulson School of Engineering and Applied Sciences, Harvard University, Boston, MA, USA
| | - Herdeline Ann M Ardoña
- Disease Biophysics Group, John A. Paulson School of Engineering and Applied Sciences, Harvard University, Boston, MA, USA
- Department of Chemical and Biomolecular Engineering, Samueli School of Engineering, University of California, Irvine, CA, USA
| | - Xujie Liu
- Department of Cardiology, Boston Children's Hospital, Boston, MA, USA
- Fuwai Hospital Chinese Academy of Medical Sciences, Shenzhen, China
| | - Ann-Caroline Heiler
- Department of Bioscience, TUM School of Natural Sciences, Technische Universität München, Garching, Germany
- Center for Functional Protein Assemblies, Technische Universität München, Garching, Germany
- Center for Organoid Systems (COS), Technische Universität München, Garching, Germany
| | - Rudy Gabardi
- Disease Biophysics Group, John A. Paulson School of Engineering and Applied Sciences, Harvard University, Boston, MA, USA
| | - Collin Richardson
- Disease Biophysics Group, John A. Paulson School of Engineering and Applied Sciences, Harvard University, Boston, MA, USA
| | - William T Pu
- Department of Cardiology, Boston Children's Hospital, Boston, MA, USA
- Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA
| | - Andreas R Bausch
- Department of Bioscience, TUM School of Natural Sciences, Technische Universität München, Garching, Germany
- Center for Functional Protein Assemblies, Technische Universität München, Garching, Germany
- Center for Organoid Systems (COS), Technische Universität München, Garching, Germany
- Max Planck School Matter to Life, Max Planck Schools, Heidelberg, Germany
| | - Kevin Kit Parker
- Disease Biophysics Group, John A. Paulson School of Engineering and Applied Sciences, Harvard University, Boston, MA, USA.
- Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA.
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, USA.
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16
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Okafor J, Khattar R, Sharma R, Kouranos V. The Role of Echocardiography in the Contemporary Diagnosis and Prognosis of Cardiac Sarcoidosis: A Comprehensive Review. Life (Basel) 2023; 13:1653. [PMID: 37629510 PMCID: PMC10455750 DOI: 10.3390/life13081653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 07/23/2023] [Accepted: 07/26/2023] [Indexed: 08/27/2023] Open
Abstract
Cardiac sarcoidosis (CS) is a rare inflammatory disorder characterised by the presence of non-caseating granulomas within the myocardium. Contemporary studies have revealed that 25-30% of patients with systemic sarcoidosis have cardiac involvement, with detection rates increasing in the era of advanced cardiac imaging. The use of late gadolinium enhancement cardiac magnetic resonance and 18fluorodeoxy glucose positron emission tomography (FDG-PET) imaging has superseded endomyocardial biopsy for the diagnosis of CS. Echocardiography has historically been used as a screening tool with abnormalities triggering the need for advanced imaging, and as a tool to assess cardiac function. Regional wall thinning or aneurysm formation in a noncoronary distribution may indicate granuloma infiltration. Thinning of the basal septum in the setting of extracardiac sarcoidosis carries a high specificity for cardiac involvement. Abnormal myocardial echotexture and eccentric hypertrophy may be suggestive of active myocardial inflammation. The presence of right-ventricular involvement as indicated by free-wall aneurysms can mimic arrhythmogenic right-ventricular cardiomyopathy. More recently, the use of myocardial strain has increased the sensitivity of echocardiography in diagnosing cardiac involvement. Echocardiography is limited in prognostication, with impaired left-ventricular (LV) ejection fraction and LV dilatation being the only established independent predictors of mortality. More research is required to explore how advanced echocardiographic technologies can increase both the diagnostic sensitivity and prognostic ability of this modality in CS.
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Affiliation(s)
- Joseph Okafor
- Department of Echocardiography, Royal Brompton Hospital, London SW3 6NP, UK
- Cardiac Sarcoidosis Centre, Royal Brompton Hospital, London SW3 6NP, UK
| | - Rajdeep Khattar
- Department of Echocardiography, Royal Brompton Hospital, London SW3 6NP, UK
- Cardiac Sarcoidosis Centre, Royal Brompton Hospital, London SW3 6NP, UK
| | - Rakesh Sharma
- Cardiac Sarcoidosis Centre, Royal Brompton Hospital, London SW3 6NP, UK
| | - Vasilis Kouranos
- Cardiac Sarcoidosis Centre, Royal Brompton Hospital, London SW3 6NP, UK
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Parlato S, Centracchio J, Esposito D, Bifulco P, Andreozzi E. Heartbeat Detection in Gyrocardiography Signals without Concurrent ECG Tracings. SENSORS (BASEL, SWITZERLAND) 2023; 23:6200. [PMID: 37448046 DOI: 10.3390/s23136200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 06/29/2023] [Accepted: 07/03/2023] [Indexed: 07/15/2023]
Abstract
A heartbeat generates tiny mechanical vibrations, mainly due to the opening and closing of heart valves. These vibrations can be recorded by accelerometers and gyroscopes applied on a subject's chest. In particular, the local 3D linear accelerations and 3D angular velocities of the chest wall are referred to as seismocardiograms (SCG) and gyrocardiograms (GCG), respectively. These signals usually exhibit a low signal-to-noise ratio, as well as non-negligible amplitude and morphological changes due to changes in posture and the sensors' location, respiratory activity, as well as other sources of intra-subject and inter-subject variability. These factors make heartbeat detection a complex task; therefore, a reference electrocardiogram (ECG) lead is usually acquired in SCG and GCG studies to ensure correct localization of heartbeats. Recently, a template matching technique based on cross correlation has proven to be particularly effective in recognizing individual heartbeats in SCG signals. This study aims to verify the performance of this technique when applied on GCG signals. Tests were conducted on a public database consisting of SCG, GCG, and ECG signals recorded synchronously on 100 patients with valvular heart diseases. The results show that the template matching technique identified heartbeats in GCG signals with a sensitivity and positive predictive value (PPV) of 87% and 92%, respectively. Regression, correlation, and Bland-Altman analyses carried out on inter-beat intervals obtained from GCG and ECG (assumed as reference) reported a slope of 0.995, an intercept of 4.06 ms (R2 > 0.99), a Pearson's correlation coefficient of 0.9993, and limits of agreement of about ±13 ms with a negligible bias. A comparison with the results of a previous study obtained on SCG signals from the same database revealed that GCG enabled effective cardiac monitoring in significantly more patients than SCG (95 vs. 77). This result suggests that GCG could ensure more robust and reliable cardiac monitoring in patients with heart diseases with respect to SCG.
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Affiliation(s)
- Salvatore Parlato
- Department of Electrical Engineering and Information Technologies, University of Naples Federico II, Via Claudio 21, 80125 Naples, Italy
| | - Jessica Centracchio
- Department of Electrical Engineering and Information Technologies, University of Naples Federico II, Via Claudio 21, 80125 Naples, Italy
| | - Daniele Esposito
- Department of Electrical Engineering and Information Technologies, University of Naples Federico II, Via Claudio 21, 80125 Naples, Italy
| | - Paolo Bifulco
- Department of Electrical Engineering and Information Technologies, University of Naples Federico II, Via Claudio 21, 80125 Naples, Italy
| | - Emilio Andreozzi
- Department of Electrical Engineering and Information Technologies, University of Naples Federico II, Via Claudio 21, 80125 Naples, Italy
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18
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Holz D, Martonová D, Schaller E, Duong MT, Alkassar M, Weyand M, Leyendecker S. Transmural fibre orientations based on Laplace-Dirichlet-Rule-Based-Methods and their influence on human heart simulations. J Biomech 2023; 156:111643. [PMID: 37321157 DOI: 10.1016/j.jbiomech.2023.111643] [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: 07/26/2022] [Revised: 02/10/2023] [Accepted: 05/15/2023] [Indexed: 06/17/2023]
Abstract
It is well known that the orthotropic tissue structure decisively influences the mechanical and electrical properties of the heart. Numerous approaches to compute the orthotropic tissue structure in computational heart models have been developed in the past decades. In this study, we investigate to what extent different Laplace-Dirichlet-Rule-Based-Methods (LDRBMs) influence the local orthotropic tissue structure and thus the electromechanical behaviour of the subsequent cardiac simulation. In detail, we are utilising three Laplace-Dirichlet-Rule-Based-Methods and compare: (i) the local myofibre orientation; (ii) important global characteristics (ejection fraction, peak pressure, apex shortening, myocardial volume reduction, fractional wall thickening); (iii) local characteristics (active fibre stress, fibre strain). We observe that the orthotropic tissue structures for the three LDRBMs show significant differences in the local myofibre orientation. The global characteristics myocardial volume reduction and peak pressure are rather insensitive to a change in local myofibre orientation, while the ejection fraction is moderately influenced by the different LDRBMs. Moreover, the apical shortening and fractional wall thickening exhibit a sensitive behaviour to a change in the local myofibre orientation. The highest sensitivity can be observed for the local characteristics.
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Affiliation(s)
- David Holz
- Friedrich-Alexander-Universität Erlangen-Nürnberg, Institute of Applied Dynamics, Immerwahrstraße 1, Erlangen, 91058, Germany.
| | - Denisa Martonová
- Friedrich-Alexander-Universität Erlangen-Nürnberg, Institute of Applied Dynamics, Immerwahrstraße 1, Erlangen, 91058, Germany
| | - Emely Schaller
- Friedrich-Alexander-Universität Erlangen-Nürnberg, Institute of Applied Dynamics, Immerwahrstraße 1, Erlangen, 91058, Germany
| | - Minh Tuan Duong
- Friedrich-Alexander-Universität Erlangen-Nürnberg, Institute of Applied Dynamics, Immerwahrstraße 1, Erlangen, 91058, Germany; School of Mechanical Engineering, Hanoi University of Science and Technology, Hanoi, 1 DaiCoViet Road, Viet Nam
| | - Muhannad Alkassar
- Friedrich-Alexander-Universität Erlangen-Nürnberg, Department of Cardiac Surgery, Krankenhausstraße 12, Erlangen, 91054, Germany
| | - Michael Weyand
- Friedrich-Alexander-Universität Erlangen-Nürnberg, Department of Cardiac Surgery, Krankenhausstraße 12, Erlangen, 91054, Germany
| | - Sigrid Leyendecker
- Friedrich-Alexander-Universität Erlangen-Nürnberg, Institute of Applied Dynamics, Immerwahrstraße 1, Erlangen, 91058, Germany
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19
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Kumar S, Malik V, Chauhan S, Das D, Hote MP, Devagourou V. Comparison of Left Ventricular Global Longitudinal Strain with Ejection Fraction as a Predictor for Peri-operative IABP Insertion in Patients Undergoing Off-Pump Coronary Artery Bypass Grafting: A Pilot Study. Ann Card Anaesth 2023; 26:295-302. [PMID: 37470528 PMCID: PMC10451142 DOI: 10.4103/aca.aca_144_22] [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: 08/22/2022] [Revised: 10/19/2022] [Accepted: 11/20/2022] [Indexed: 07/21/2023] Open
Abstract
Background Prophylactic use of intra-aortic balloon pump (IABP) mainly depends on left ventricular (LV) systolic function. Global longitudinal strain (GLS) is a robust prognostic parameter for LV strain. It has proved to be more sensitive than LV ejection fraction (EF) as a measure of LV systolic function and is a strong predictor of outcome. Aim To determine whether GLS can be used as a reliable marker and its cut-off value for IABP insertion in patients undergoing elective off-pump coronary artery bypass grafting (OPCABG). Settings and Design A prospective observational clinical study which included 100 adult patients scheduled for elective OPCABG. Materials and Methods Two-dimensional (2D) speckle tracking echocardiography (STE)-estimated GLS was computed and compared with LV EF measured by three dimensional (3D) echocardiography for the insertion of IABP. The intensive care unit (ICU) parameters were correlated with echocardiographic parameters to predict early post-operative outcome. Results IABP insertion correlates better with GLS (post-revascularization > pre-revascularization) than with 3D LV EF. Receiver operating characteristic (ROC) curve analysis revealed the highest area under the curve (AUC, 0.972) with a cut-off value of > -9.8% for GLS compared to 3D LV EF (AUC, 0.938) with a cut-off value of ≤ 44%. ICU parameters show better correlation with E/e'> GLS > WMSI than 3D LV EF. Conclusion GLS is a better predictor of IABP insertion compared to 3D LV EF in patients undergoing OPCABG.
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Affiliation(s)
- Sanjeev Kumar
- Department of Cardiac Anaesthesia and Critical Care, Cardiothoracic Centre, All India Institute of Medical Sciences, New Delhi, India
| | - Vishwas Malik
- Department of Cardiac Anaesthesia and Critical Care, Cardiothoracic Centre, All India Institute of Medical Sciences, New Delhi, India
| | - Sandeep Chauhan
- Department of Cardiac Anaesthesia and Critical Care, Cardiothoracic Centre, All India Institute of Medical Sciences, New Delhi, India
| | - Devishree Das
- Department of Cardiac Anaesthesia and Critical Care, Cardiothoracic Centre, All India Institute of Medical Sciences, New Delhi, India
| | - Milind P. Hote
- Department of Cardiothoracic and Vascular Surgery, Cardiothoracic Centre, All India Institute of Medical Sciences, New Delhi, India
| | - V. Devagourou
- Department of Cardiothoracic and Vascular Surgery, Cardiothoracic Centre, All India Institute of Medical Sciences, New Delhi, India
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20
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Johnson C, Sculthorpe N, George K, Stout M, Procter W, Cooper RM, Oxborough D. Concentric and Eccentric Remodelling of the Left Ventricle and Its Association to Function in the Male Athletes Heart: An Exploratory Study. J Cardiovasc Dev Dis 2023; 10:269. [PMID: 37504525 PMCID: PMC10380865 DOI: 10.3390/jcdd10070269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 06/14/2023] [Accepted: 06/19/2023] [Indexed: 07/29/2023] Open
Abstract
AIMS To compare (1) conventional left ventricular (LV) functional parameters, (2) LV peak strain and strain rate and (3) LV temporal strain and strain rate curves in age, ethnicity and sport-matched athletes with concentric, eccentric and normal LV geometry. METHODS Forty-five male athletes were categorised according to LV geometry including concentric remodelling/hypertrophy (CON), eccentric hypertrophy (ECC) or normal (NORM). Athletes were evaluated using conventional echocardiography and myocardial speck tracking, allowing the assessment of myocardial strain and strain rate; as well as twist mechanics. RESULTS Concentric remodelling was associated with an increased ejection fraction (EF) compared to normal geometry athletes (64% (48-78%) and 56% (50-65%), respectively; p < 0.04). No differences in peak myocardial strain or strain rate were present between LV geometry groups including global longitudinal strain (GLS; CON -16.9% (-14.9-20.6%); ECC -17.9% (-13.0-22.1%); NORM -16.9% (-12.8-19.4%)), global circumferential strain (GCS; CON -18.1% (-13.5-24.5%); ECC -18.7% (-15.6-22.4%); NORM -18.0% (-13.5-19.7%)), global radial strain (GRS; CON 42.2% (30.3-70.5%); ECC 50.0% (39.2-60.0%); NORM 40.6 (29.9-57.0%)) and twist (CON 14.9° (3.7-25.3°); ECC 12.5° (6.3-20.8°); NORM 13.2° (8.8-24.2°)). Concentric and eccentric remodelling was associated with alterations in temporal myocardial strain and strain rate as compared to normal geometry athletes. CONCLUSION Physiological concentric and eccentric remodelling in the athletes heart is generally associated with normal LV function; with concentric remodelling associated with an increased EF. Physiological concentric and eccentric remodelling in the athletes heart has no effect on peak myocardial strain but superior deformation and untwisting is unmasked when assessing the temporal distribution.
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Affiliation(s)
- Christopher Johnson
- Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool L3 3AF, UK
| | - Nicholas Sculthorpe
- Sport and Physical Activity Institute, University of the West of Scotland, Glasgow G72 0LH, UK
| | - Keith George
- Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool L3 3AF, UK
| | - Martin Stout
- School of Healthcare Science, Manchester Metropolitan University, Manchester M15 6BH, UK
| | - William Procter
- Department of Cardiology, Barts Heart Centre, London EC1A 7BE, UK
| | - Robert M Cooper
- Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool L3 3AF, UK
| | - David Oxborough
- Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool L3 3AF, UK
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21
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Usman M, Mendiola EA, Mukherjee T, Mehdi RR, Ohayon J, Alluri PG, Sadayappan S, Choudhary G, Avazmohammadi R. On the possibility of estimating myocardial fiber architecture from cardiac strains. FUNCTIONAL IMAGING AND MODELING OF THE HEART : ... INTERNATIONAL WORKSHOP, FIMH ..., PROCEEDINGS. FIMH 2023; 13958:74-83. [PMID: 37671365 PMCID: PMC10478796 DOI: 10.1007/978-3-031-35302-4_8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/07/2023]
Abstract
The myocardium is composed of a complex network of contractile myofibers that are organized in such a way as to produce efficient contraction and relaxation of the heart. The myofiber architecture in the myocardium is a key determinant of cardiac motion and the global or organ-level function of the heart. Reports of architectural remodeling in cardiac diseases, such as pulmonary hypertension and myocardial infarction, potentially contributing to cardiac dysfunction call for the inclusion of an architectural marker for an improved assessment of cardiac function. However, the in-vivo quantification of three-dimensional myo-architecture has proven challenging. In this work, we examine the sensitivity of cardiac strains to varying myofiber orientation using a multiscale finite-element model of the LV. Additionally, we present an inverse modeling approach to predict the myocardium fiber structure from cardiac strains. Our results indicate a strong correlation between fiber orientation and LV kinematics, corroborating that the fiber structure is a principal determinant of LV contractile behavior. Our inverse model was capable of accurately predicting the myocardial fiber range and regional fiber angles from strain measures. A concrete understanding of the link between LV myofiber structure and motion, and the development of non-invasive and feasible means of characterizing the myocardium architecture is expected to lead to advanced LV functional metrics and improved prognostic assessment of structural heart disease.
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Affiliation(s)
- Muhammad Usman
- Department of Biomedical Engineering, Texas A&M University, College Station, TX 77843, USA
| | - Emilio A Mendiola
- Department of Biomedical Engineering, Texas A&M University, College Station, TX 77843, USA
| | - Tanmay Mukherjee
- Department of Biomedical Engineering, Texas A&M University, College Station, TX 77843, USA
| | - Rana Raza Mehdi
- Department of Biomedical Engineering, Texas A&M University, College Station, TX 77843, USA
| | - Jacques Ohayon
- Savoie Mont-Blanc University, Polytech Annecy-Chambéry, Le Bourget du Lac, France
- Department of Cardiovascular Sciences, Houston Methodist Academic Institute, Houston, TX 77030, USA
| | - Prasanna G Alluri
- Department of Radiation Oncology, UT Southwestern Medical Center, Dallas, TX 75390, USA
| | - Sakthivel Sadayappan
- Department of Internal Medicine, Division of Cardiovascular Health and Disease, University of Cincinnati College of Medicine, Cincinnati, OH 45267, USA
| | - Gaurav Choudhary
- Department of Medicine, Alpert Medical School of Brown University, Providence, RI 02903, USA
| | - Reza Avazmohammadi
- Department of Biomedical Engineering, Texas A&M University, College Station, TX 77843, USA
- Department of Cardiovascular Sciences, Houston Methodist Academic Institute, Houston, TX 77030, USA
- J. Mike Walker '66 Department of Mechanical Engineering, Texas A&M University, College Station, TX, USA
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22
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Castelvecchio S, Frigelli M, Sturla F, Milani V, Pappalardo OA, Citarella M, Menicanti L, Votta E. Elucidating the mechanisms underlying left ventricular function recovery in patients with ischemic heart failure undergoing surgical remodeling: A 3-dimensional ultrasound analysis. J Thorac Cardiovasc Surg 2023; 165:1418-1429.e4. [PMID: 33781593 DOI: 10.1016/j.jtcvs.2021.02.067] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 02/02/2021] [Accepted: 02/10/2021] [Indexed: 11/30/2022]
Abstract
OBJECTIVE The study objective was to elucidate the mechanisms of left ventricle functional recovery in terms of endocardial contractility and synchronicity after surgical ventricular reconstruction. METHODS Real-time 3-dimensional transthoracic echocardiography was performed on 20 patients with anterior left ventricle remodeling and ischemic heart failure before surgical ventricular reconstruction and at 6-month follow-up, and on 15 healthy controls matched by age and body surface area. Real-time 3-dimensional transthoracic echocardiography datasets were analyzed through TomTec software (4D LV-Analysis; TomTec Imaging Systems GmbH, Unterschleissheim, Germany): Left ventricle volumes, ejection fraction, and global longitudinal strain were computed; the time-dependent endocardial surface yielded by 3-dimensional speckle-tracking echocardiography was postprocessed through in-house software to quantify local systolic minimum principal strain as a measure of fiber shortening and mechanical dispersion as a measure of fiber synchronicity. RESULTS Compared with controls, patients with heart failure before surgical ventricular reconstruction showed lower ejection fraction (P < .0001) and significantly impaired mechanical dispersion (P < .0001) and minimum principal strain (P < .0001); the latter worsened progressively from left ventricle base to apex. After surgical ventricular reconstruction, global longitudinal strain improved from -6.7% to -11.3% (P < .0001); mechanical dispersion decreased in every left ventricle region (P ≤ .017) and mostly in the basal region, where computed mechanical dispersion values were comparable to physiologic values (P ≥ .046); minimum principal strain improved mostly in the basal region, changing from -16.6% to -22.3% (P = .0027). CONCLUSIONS At 6-month follow-up, surgical ventricular reconstruction was associated with significant recovery in global left ventricle function, improved mechanical dispersion indicating a more synchronous left ventricle contraction, and improved left ventricle fiber shortening mostly in the basal region, suggesting the major role of the remote myocardium in enhancing left ventricle functional recovery.
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Affiliation(s)
| | - Matteo Frigelli
- 3D and Computer Simulation Laboratory, IRCCS Policlinico San Donato, San Donato Milanese, Italy; Department of Electronics, Information and Bioengineering, Politecnico di Milano, Milan, Italy
| | - Francesco Sturla
- 3D and Computer Simulation Laboratory, IRCCS Policlinico San Donato, San Donato Milanese, Italy; Department of Electronics, Information and Bioengineering, Politecnico di Milano, Milan, Italy.
| | - Valentina Milani
- Scientific Directorate, IRCCS Policlinico San Donato, San Donato Milanese, Italy
| | - Omar A Pappalardo
- 3D and Computer Simulation Laboratory, IRCCS Policlinico San Donato, San Donato Milanese, Italy
| | - Michele Citarella
- Cardiac Surgery Department, IRCCS Policlinico San Donato, San Donato Milanese, Italy
| | - Lorenzo Menicanti
- Cardiac Surgery Department, IRCCS Policlinico San Donato, San Donato Milanese, Italy
| | - Emiliano Votta
- 3D and Computer Simulation Laboratory, IRCCS Policlinico San Donato, San Donato Milanese, Italy; Department of Electronics, Information and Bioengineering, Politecnico di Milano, Milan, Italy
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23
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Characterization of Cardiac Function by Echocardiographic Global Longitudinal Strain in a Cohort of Children with Neurofibromatosis Type 1 Treated with Selumetinib. Paediatr Drugs 2023; 25:217-224. [PMID: 36529809 DOI: 10.1007/s40272-022-00551-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/30/2022] [Indexed: 12/23/2022]
Abstract
BACKGROUND Plexiform neurofibromas are benign neoplasms that develop in 20-50% children with neurofibromatosis type 1 (NF1). Selumetinib was approved as treatment for symptomatic and inoperable plexiform neurofibromas. Subclinical left ventricular ejection fraction reduction is a less common effect of selumetinib. OBJECTIVE We aimed to investigate the contractile function of the heart in a cohort of children with NF1 treated with selumetinib. METHODS We designed a cross-sectional study including 17 patients with NF1 who received selumetinib. Echocardiographic parameters were compared with a cohort of 17 healthy children matched by sex and age and another group of 17 children with untreated NF1. RESULTS Compared with healthy controls, patients with NF1 treated with selumetinib had lower mean values of global longitudinal strain (- 22.9 ± 2% vs -25.5 ± 2%; p = 0.001), fractional shortening (36 ± 4% vs 43 ± 8%; p = 0.02) and tricuspid annular plane systolic excursion (19 ± 3 mm vs 23 ± 2 mm; p = 0.001); no difference was found in left ventricular ejection fraction (63 ± 4% vs 65 ± 3%; p = 0.2 respectively). Median treatment time with selumetinib at the time of the echocardiographic evaluation was 22 ± 16 months. CONCLUSIONS Patients with NF1 treated with selumetinib may experience subtle changes in systolic function identified by global longitudinal strain and not revealed by left ventricular ejection fraction. Global longitudinal strain might be useful to monitor cardiac function in this cohort of patients for the duration of therapy.
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24
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Antúnez-Montes OY, Kocica MJ, Olavarria AS, Corno AF, Millan RA, Rosales CI, Sanchez Aparicio HE. Helical structure of the ventricular myocardium. A narrative review of cardiac mechanics. Echocardiography 2023; 40:161-173. [PMID: 36610038 DOI: 10.1111/echo.15515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 11/24/2022] [Accepted: 12/03/2022] [Indexed: 01/09/2023] Open
Abstract
To date, the ventricular myocardial band is the anatomical-functional model that best explains cardiac mechanics during systolic-diastolic phenomena in the cardiac cycle. The implications of the model fundamentally affect the anatomical interpretation of the ventricular myocardium, giving meaning to the direction that muscle fibers take, turning them into an object of study with potential clinical, imaging, and surgical applications. Re-interpreting the anatomy of the ventricular muscle justifies changes in the physiological interpretation, from its functional focus as a fiber unraveling the mechanical phenomena carried out during systole and diastole. We identify the functioning of the heart from the electrical and hemodynamic point of view, but it is necessary to delve into the mechanics that originate the hemodynamic changes observed flowmetrically, and that manifested during the pathology. In this review, the mechanical phenomena that the myocardium performs in each phase of the cardiac cycle are broken down in detail, emphasizing the physical displacements that each of the muscle segments presents, as well as a vision of their alteration and in which pathologies they are mainly identified. Visually, an anatomical correlation to the echocardiogram is provided, pointing out the direction of the segmental myocardial displacement by the strain velocity vector technique.
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Affiliation(s)
| | - Mladen J Kocica
- UC Clinical Center of Serbia, Clinic for Cardiac Surgery, Belgrade, Serbia
| | | | - Antonio Francesco Corno
- Children's Heart Institute, Memorial Hermann Children's Hospital, McGovern Medical School, UTHealth in Houston, Texas, USA
| | - Rocio Aceves Millan
- Echocardiography Section, November 20 National Medical Center, ISSSTE, Mexico City, Mexico
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25
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Mora V, Roldán I, Romero E, Saad A, Gil C, Contreras MB, Trainini J, Escribano P, Gimeno P, Arbucci R, Valls A, Lowenstein J. Myocardial Wringing and Rigid Rotation in Cardiac Amyloidosis. CJC Open 2023; 5:128-135. [PMID: 36880078 PMCID: PMC9984891 DOI: 10.1016/j.cjco.2022.11.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 11/08/2022] [Indexed: 11/16/2022] Open
Abstract
Background The motion of the heart is a result of the helicoidal arrangement of the myofibers in the organ's wall. We aimed to study the relationship between the wringing motion state and the degree of ventricular function in patients with cardiac amyloidosis (CA). Methods Fifty patients with CA and decreased global longitudinal strain (LS) were evaluated using 2-dimensional speckle-tracking echocardiography. We have expressed LS as positive values to facilitate understanding. Normal twist, which occurs when basal and apical rotations occur in opposite directions, was coded as positive. When the apex and base rotate in the same direction (rigid rotation), twist was coded as negative. Left ventricular (LV) wringing (calculated as twist/LS, which takes into account actions that occur simultaneously during LV systole [ie, longitudinal shortening and twist]) was evaluated according to LV ejection fraction (LVEF). Results Most of the patients (66%) who participated in the study were diagnosed with transthyretin amyloidosis. A positive relationship was observed between wringing and LVEF (r = 0.75, P < 0.0001). In advanced stages of ventricular dysfunction, rigid rotation appeared in 66.6% of patients with LVEF ≤ 40%, in whom negative values of twist and wringing were observed. LV wringing proved to be a good discriminator of LVEF (area under the curve 0.90, P < 0.001, 95% confidence interval 0.79-0.97); for example, wringing < 1.30°/% detected LVEF < 50% with 85.7% sensibility and 89.7% specificity. Conclusions Wringing, which integrates twist and simultaneous LV longitudinal shortening, is a conditioning rotational parameter of the degree of ventricular function in patients with CA.
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Affiliation(s)
- Vicente Mora
- Department of Cardiology, Hospital Universitario Dr Peset. Valencia, Spain
| | - Ildefonso Roldán
- Department of Cardiology, Hospital Universitario Dr Peset. Valencia, Spain
| | - Elena Romero
- Department of Cardiology, Hospital Universitario Dr Peset. Valencia, Spain
| | - Ariel Saad
- Cardiodiagnosis Department, Medical Research, Buenos Aires, Argentina
| | - Celia Gil
- Department of Cardiology, Hospital Universitario Dr Peset. Valencia, Spain
| | - M Belen Contreras
- Department of Cardiology, Hospital Universitario Dr Peset. Valencia, Spain
| | - Jorge Trainini
- Cardiodiagnosis Department, Medical Research, Buenos Aires, Argentina
| | - Pablo Escribano
- Department of Cardiology, Hospital Universitario Dr Peset. Valencia, Spain
| | - Pau Gimeno
- Department of Cardiology, Hospital Universitario Dr Peset. Valencia, Spain
| | - Rosina Arbucci
- Cardiodiagnosis Department, Medical Research, Buenos Aires, Argentina
| | - Amparo Valls
- Department of Cardiology, Hospital Universitario Dr Peset. Valencia, Spain
| | - Jorge Lowenstein
- Cardiodiagnosis Department, Medical Research, Buenos Aires, Argentina
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26
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Labus J, Foit A, Mehler O, Rahmanian P, Böttiger BW, Wetsch WA, Mathes A. Intraoperative Noninvasive Left Ventricular Myocardial Work Indices in Patients Undergoing On-Pump Coronary Artery Bypass Surgery. J Cardiothorac Vasc Anesth 2023; 37:221-231. [PMID: 36404229 DOI: 10.1053/j.jvca.2022.10.025] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 10/13/2022] [Accepted: 10/24/2022] [Indexed: 11/06/2022]
Abstract
OBJECTIVES Noninvasive echocardiographic analysis of left ventricular (LV) myocardial work (MW) enables insights into cardiac mechanics, contractility, and efficacy beyond ejection fraction (EF) and global longitudinal strain (GLS). However, there are limited perioperative data on patients undergoing coronary artery bypass graft (CABG) surgery. The authors aimed to describe the feasibility and the intraoperative course of this novel assessment tool of ventricular function in these patients, and compare it to conventional 2-dimensional (2D) and 3-dimensional (3D) echocardiographic parameters and strain analysis. DESIGN A prospective observational study. SETTING At a single university hospital. PARTICIPANTS Twenty-five patients with preoperative preserved LV and right ventricular function, sinus rhythm, without significant heart valve disease or pulmonary hypertension, and an uncomplicated intraoperative course scheduled for isolated on-pump CABG surgery. INTERVENTIONS Transesophageal echocardiography (TEE) was performed intraoperatively after the induction of anesthesia (T1), after termination of cardiopulmonary bypass (T2), and after sternal closure (T3). All measurements were performed under stable hemodynamic conditions, in sinus rhythm or atrial pacing, and vasopressor support with norepinephrine ≤ 0.1 µg/kg/min. MEASUREMENTS AND MAIN RESULTS The EchoPAC v204 software (GE Vingmed Ultrasound AS, Norway) was used for analysis of 2D and 3D LVEF, LV GLS, LV global work index (GWI), LV global constructive work (GCW), LV global wasted work (GWW), and LV global work efficiency (GWE). The MW analysis was feasible in all patients. Although there was no significant difference in the values of 2D and 3D EF during the intraoperative interval, GLS deteriorated significantly after CABG compared to assessment after induction of anesthesia (T1 v T2, -13.3 ± 3.0% v -11.6 ± 3.1%; p = 0.012). The GWI declined significantly after surgery (T1 v T2, 1,224 ± 312 mmHg% v 940 ± 267 mmHg%; p < 0.001), as well as GCW (T1 v T2, 1,460 ± 312 mmHg% v 1,244 ± 336 mmHg%; p = 0.005). The GWW increased after CABG (T1 v T2, 143 mmHg% (IQR 99-183) v 251 mmHg% (IQR 179-361); p < 0.001), and GWE decreased (T1 v T2, 89% (IQR 85-92) v 80% (IQR 75-87); p < 0.001). There were no significant changes in the values of 2D and 3D EF, GLS, GWI, GCW, GWW, and GWE before and after sternal closure (T2 v T3). CONCLUSION The intraoperative analysis of noninvasive echocardiographically-assessed LV MW indices is feasible. In the short-term period after uncomplicated on-pump CABG, GLS, as well as global and constructive MW, decreased, whereas wasted work increased, resulting in a less efficient left ventricle. None of these aspects was detected by conventional echocardiographic parameters. Therefore, strain and MW analysis might be more sensitive parameters in detecting myocardial dysfunction by TEE in the perioperative setting, adding information on perioperative cardiac energetics.
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Affiliation(s)
- Jakob Labus
- Department of Anesthesiology and Intensive Care Medicine, University Hospital of Cologne, and Faculty of Medicine, University of Cologne, Cologne, Germany.
| | - André Foit
- Department of Anesthesiology and Intensive Care Medicine, University Hospital of Cologne, and Faculty of Medicine, University of Cologne, Cologne, Germany
| | - Oliver Mehler
- Department of Anesthesiology and Intensive Care Medicine, University Hospital of Cologne, and Faculty of Medicine, University of Cologne, Cologne, Germany
| | - Parwis Rahmanian
- Department of Cardiothoracic Surgery, Heart Center, University Hospital of Cologne, and Faculty of Medicine, University of Cologne, Cologne, Germany
| | - Bernd W Böttiger
- Department of Anesthesiology and Intensive Care Medicine, University Hospital of Cologne, and Faculty of Medicine, University of Cologne, Cologne, Germany
| | - Wolfgang A Wetsch
- Department of Anesthesiology and Intensive Care Medicine, University Hospital of Cologne, and Faculty of Medicine, University of Cologne, Cologne, Germany
| | - Alexander Mathes
- Department of Anesthesiology and Intensive Care Medicine, University Hospital of Cologne, and Faculty of Medicine, University of Cologne, Cologne, Germany
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Yan B. Actuators for Implantable Devices: A Broad View. MICROMACHINES 2022; 13:1756. [PMID: 36296109 PMCID: PMC9610948 DOI: 10.3390/mi13101756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 09/12/2022] [Accepted: 10/06/2022] [Indexed: 06/16/2023]
Abstract
The choice of actuators dictates how an implantable biomedical device moves. Specifically, the concept of implantable robots consists of the three pillars: actuators, sensors, and powering. Robotic devices that require active motion are driven by a biocompatible actuator. Depending on the actuating mechanism, different types of actuators vary remarkably in strain/stress output, frequency, power consumption, and durability. Most reviews to date focus on specific type of actuating mechanism (electric, photonic, electrothermal, etc.) for biomedical applications. With a rapidly expanding library of novel actuators, however, the granular boundaries between subcategories turns the selection of actuators a laborious task, which can be particularly time-consuming to those unfamiliar with actuation. To offer a broad view, this study (1) showcases the recent advances in various types of actuating technologies that can be potentially implemented in vivo, (2) outlines technical advantages and the limitations of each type, and (3) provides use-specific suggestions on actuator choice for applications such as drug delivery, cardiovascular, and endoscopy implants.
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Affiliation(s)
- Bingxi Yan
- Department of Electrical and Computer Engineering, Ohio State University, Columbus, OH 43210, USA
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Shen MT, Li Y, Guo YK, Gao Y, Jiang L, Shi R, Yang ZG. The Impact of Hypertension on Left Ventricular Function and Remodeling in Non-Ischemic Dilated Cardiomyopathy Patients: A 3.0 T MRI Study. J Magn Reson Imaging 2022. [PMID: 36226793 DOI: 10.1002/jmri.28475] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 09/27/2022] [Accepted: 09/28/2022] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Hypertension (HTN) is highly prevalent in non-ischemic dilated cardiomyopathy (NIDCM) patients, but little is known about its impact on left ventricular (LV) function and remodeling. PURPOSE To evaluate the effect of hypertension on LV function and remodeling in NIDCM patients. STUDY TYPE Retrospective. POPULATION Two-hundred and twelve NIDCM (HTN-) patients, 91 NIDCM (HTN+) patients, and 74 normal controls. FIELD STRENGTH/SEQUENCE 3.0 T/bSSFP and phase-sensitive inversion recovery sequence. ASSESSMENT The LV geometry, myocardial strain, remodeling index (calculated as LVM/LVEDV), and LGE were measured and compared between groups. Determinants of LV strain and remodeling in NIDCM were investigated. STATISTICAL TESTS Student's t-test, Mann-Whitney U test, one-way analysis of variance, Kruskal-Wallis test, univariable and multivariable linear regression. A P value <0.05 was considered statistically significant. RESULTS Compared with normal controls, NIDCM patients had significantly higher LVEDV and significantly impaired LV strains, including LV global peak strain (PS) and peak systolic and diastolic strain rates in the radial, circumferential, and longitudinal directions. The NIDCM (HTN+) group had significantly decreased LV global longitudinal PS and peak diastolic strain rate (PDSR), and significantly increased LV mass index and remodeling index compared to the NIDCM (HTN-) group, despite there being no significant difference in ejection fraction (P = 0.241). The prevalence of LV LGE was significantly higher in the NIDCM (HTN+) group than in the NIDCM (HTN-) group. In multivariable regression models adjusted for potential confounders, hypertension was independently associated with LV global longitudinal PS and PDSR. Male sex, resting heart rate, and log(NT-proBNP) level were independent determinants of LV strains. Moreover, male sex, systolic and diastolic blood pressure, and presence of LGE were independent determinants of LV remodeling index. DATA CONCLUSION These findings suggest that coexistence of hypertension may further exacerbate the reduction in LV global strain and the aggravation of LV remodeling in NIDCM patients. LEVEL OF EVIDENCE 3 TECHNICAL EFFICACY: Stage 3.
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Affiliation(s)
- Meng-Ting Shen
- Department of Radiology, West China Hospital, Sichuan University, Chengdu, China
| | - Yuan Li
- Department of Radiology, West China Hospital, Sichuan University, Chengdu, China
| | - Ying-Kun Guo
- Department of Radiology, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Yue Gao
- Department of Radiology, West China Hospital, Sichuan University, Chengdu, China
| | - Li Jiang
- Department of Radiology, West China Hospital, Sichuan University, Chengdu, China
| | - Rui Shi
- Department of Radiology, West China Hospital, Sichuan University, Chengdu, China
| | - Zhi-Gang Yang
- Department of Radiology, West China Hospital, Sichuan University, Chengdu, China
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Magat J, Yon M, Bihan-Poudec Y, Ozenne V. A groupwise registration and tractography framework for cardiac myofiber architecture description by diffusion MRI: An application to the ventricular junctions. PLoS One 2022; 17:e0271279. [PMID: 35849598 PMCID: PMC9292118 DOI: 10.1371/journal.pone.0271279] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 06/27/2022] [Indexed: 11/19/2022] Open
Abstract
Background Knowledge of the normal myocardial–myocyte orientation could theoretically allow the definition of relevant quantitative biomarkers in clinical routine to diagnose heart pathologies. A whole heart diffusion tensor template representative of the global myofiber organization over species is therefore crucial for comparisons across populations. In this study, we developed a groupwise registration and tractography framework to resolve the global myofiber arrangement of large mammalian sheep hearts. To demonstrate the potential application of the proposed method, a novel description of sub-regions in the intraventricular septum is presented. Methods Three explanted sheep (ovine) hearts (size ~12×8×6 cm3, heart weight ~ 150 g) were perfused with contrast agent and fixative and imaged in a 9.4T magnet. A group-wise registration of high-resolution anatomical and diffusion-weighted images were performed to generate anatomical and diffusion tensor templates. Diffusion tensor metrics (eigenvalues, eigenvectors, fractional anisotropy …) were computed to provide a quantitative and spatially-resolved analysis of cardiac microstructure. Then tractography was performed using deterministic and probabilistic algorithms and used for different purposes: i) Visualization of myofiber architecture, ii) Segmentation of sub-area depicting the same fiber organization, iii) Seeding and Tract Editing. Finally, dissection was performed to confirm the existence of macroscopic structures identified in the diffusion tensor template. Results The template creation takes advantage of high-resolution anatomical and diffusion-weighted images obtained at an isotropic resolution of 150 μm and 600 μm respectively, covering ventricles and atria and providing information on the normal myocardial architecture. The diffusion metric distributions from the template were found close to the one of the individual samples validating the registration procedure. Small new sub-regions exhibiting spatially sharp variations in fiber orientation close to the junctions of the septum and ventricles were identified. Each substructure was defined and represented using streamlines. The existence of a fiber-bundles in the posterior junction was validated by anatomical dissection. A complex structural organization of the anterior junction in comparison to the posterior junction was evidenced by the high-resolution acquisition. Conclusions A new framework combining cardiac template generation and tractography was applied on the whole sheep heart. The framework can be used for anatomical investigation, characterization of microstructure and visualization of myofiber orientation across samples. Finally, a novel description of the ventricular junction in large mammalian sheep hearts was proposed.
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Affiliation(s)
- Julie Magat
- IHU Liryc, Electrophysiology and Heart Modeling Institute, Foundation Bordeaux Université, Bordeaux, France
- Centre de recherche Cardio-Thoracique de Bordeaux, Univ. Bordeaux, U1045, Bordeaux, France
- INSERM, Centre de recherche Cardio-Thoracique de Bordeaux, U1045, Bordeaux, France
| | - Maxime Yon
- IHU Liryc, Electrophysiology and Heart Modeling Institute, Foundation Bordeaux Université, Bordeaux, France
- Centre de recherche Cardio-Thoracique de Bordeaux, Univ. Bordeaux, U1045, Bordeaux, France
- INSERM, Centre de recherche Cardio-Thoracique de Bordeaux, U1045, Bordeaux, France
| | - Yann Bihan-Poudec
- Institut des Sciences Cognitives Marc Jeannerod, CNRS UMR 5229, Université Claude Bernard Lyon I, Bron, France
| | - Valéry Ozenne
- IHU Liryc, Electrophysiology and Heart Modeling Institute, Foundation Bordeaux Université, Bordeaux, France
- Centre de recherche Cardio-Thoracique de Bordeaux, Univ. Bordeaux, U1045, Bordeaux, France
- INSERM, Centre de recherche Cardio-Thoracique de Bordeaux, U1045, Bordeaux, France
- Centre de Résonance Magnétique des Systèmes Biologiques, UMR 5536, CNRS/Université de Bordeaux, Bordeaux, France
- * E-mail:
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Purwowiyoto SL, Halomoan R. Highlighting the role of global longitudinal strain assessment in valvular heart disease. Egypt Heart J 2022; 74:46. [PMID: 35639183 PMCID: PMC9156579 DOI: 10.1186/s43044-022-00283-9] [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: 05/07/2021] [Accepted: 05/05/2022] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Echocardiography has been the choice for imaging modality for valvular heart disease. It is less invasive, widely available, and allows valvular structure visualization. Echocardiographic assessment often also determines the management. Left ventricular ejection fraction is the most commonly used indicator during echocardiography assessment. It shows signs of left ventricular dysfunction in patients with valve disease. However, most of the time, the ongoing process of cardiac damage may already occur even with preserved cardiac function; further deteriorated ejection fraction will show irreversible cardiac damage. There is a need for a more advanced diagnostic tool to detect early cardiac dysfunction, to prevent further damage.
Main body
Advanced echocardiography imaging using strain imaging allows a physician to evaluate cardiac function more precisely. A more sensitive parameter than left ventricular ejection fraction, global longitudinal strain, can evaluate subclinical myocardial dysfunction before the symptoms occur by evaluating complex cardiac mechanisms. Global longitudinal strain evaluation provides the chance for physicians to determine the intervention needed to prevent further deterioration and permanent cardiac dysfunction. Global longitudinal strain is proven to be beneficial in many types of valvular heart diseases, especially in mitral and aortic valve diseases. It has an excellent diagnostic and prognostic value for patients with valve disease. This review aims to present the superiority of global longitudinal strain compared to left ventricular ejection fraction in assessing cardiac function in patients with valvular heart disease. Clinical usage of global longitudinal strain in several valvular heart diseases is also presented in this review.
Conclusions
The superiority of global longitudinal strain to left ventricular ejection fraction relies on the mechanism where other strains would compensate for the deterioration of longitudinal strain, which is more vulnerable to damage, so the cardiac function is preserved. Therefore, examination of longitudinal strain would give the physician early signs of cardiac function impairment, and prompt management can be conducted.
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Pezel T, Bluemke DA, Wu CO, Lima JAC, Ambale Venkatesh B. Regional Strain Score as Prognostic Marker of Cardiovascular Events From the Multi-Ethnic Study of Atherosclerosis (MESA). Front Cardiovasc Med 2022; 9:870942. [PMID: 35647063 PMCID: PMC9136083 DOI: 10.3389/fcvm.2022.870942] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 04/25/2022] [Indexed: 11/28/2022] Open
Abstract
Background Left ventricular (LV) circumferential strain (Ecc) is an accurate indicator of regional myocardial function, particularly using the regional Ecc or layer-specific strain. Aim This study aimed to investigate the prognostic value of a regional strain score (RSS) for predicting the incident of heart failure (HF) and coronary heart disease (CHD) in a population without a history of cardiovascular disease at baseline. Materials and Methods Data from participants in the Multi-Ethnic Study of Atherosclerosis (MESA) who underwent tagged magnetic resonance imaging for strain determination were analyzed. Using −17% and −10% as Ecc cut-offs, each segment was rated from 0 to 2 points according to the Ecc value of each layer. The endo-Ecc, mid-Ecc, and epi-Ecc values from the 16-segment model were used to calculate three RSS: Endo-, Mid-, and Epi-RSS, respectively, which were defined as a percentage of good LV regional function. The Intramyocardial-RSS was the sum of these three RSS. Cox proportional hazard models were used to evaluate the association between each RSS and incident HF and hard CHD. Results Among the 1,506 participants (63.3 ± 9.4 years, 54.6% men), 122 cases of hard CHD and 91 cases of HF were observed [median (IQR) follow-up 15.9 (12.9–16.6) years]. After adjustment, Mid-, Epi-, and Intramyocardial-RSS values <50% were independently associated with HF [adjusted HR 1.43; 95% CI (1.08–2.87), p = 0.004; HR 1.80; 95% CI (1.12–3.07), p < 0.001; and HR 2.01; 95% CI (1.19–3.20), p < 0.001]. After adjustment, Endo-, Mid-, Epi-, and Intramyocardial-RSS <50% were also independently associated with hard CHD [adjusted HR 1.31; 95% CI (1.03–1.51), p = 0.04; HR 1.79; 95% CI (1.26–2.57), p < 0.001; HR 2.03; 95% CI (1.45–3.40), p < 0.001; and HR 2.28; 95% CI (1.51–3.53), p < 0.001]. Conclusions Layer-specific regional Ecc, assessed by RSS, provides a robust, independent predictive value for incident HF and hard CHD in asymptomatic participants without any history of previous clinical cardiovascular disease. Clinical Trial Registration Unique identifier: NCT00005487.
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Affiliation(s)
- Theo Pezel
- Division of Cardiology, Johns Hopkins Hospital, School of Medicine, Johns Hopkins University, Baltimore, MD, United States
- Department of Cardiology, Lariboisiere Hospital – APHP, INSERM UMRS 942, University of Paris, Paris, France
| | - David A. Bluemke
- University of Wisconsin School of Medicine and Public Health, Madison, WI, United States
| | - Colin O. Wu
- Division of Intramural Research, National Heart Lung and Blood Institute, Bethesda, MD, United States
| | - João A. C. Lima
- Division of Cardiology, Johns Hopkins Hospital, School of Medicine, Johns Hopkins University, Baltimore, MD, United States
| | - Bharath Ambale Venkatesh
- Division of Cardiology, Johns Hopkins Hospital, School of Medicine, Johns Hopkins University, Baltimore, MD, United States
- *Correspondence: Bharath Ambale Venkatesh
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Atehortúa A, Romero E, Garreau M. Characterization of motion patterns by a spatio-temporal saliency descriptor in cardiac cine MRI. COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE 2022; 218:106714. [PMID: 35263659 DOI: 10.1016/j.cmpb.2022.106714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 02/03/2022] [Accepted: 02/23/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND AND OBJECTIVE Abnormalities of the heart motion reveal the presence of a disease. However, a quantitative interpretation of the motion is still a challenge due to the complex dynamics of the heart. This work proposes a quantitative characterization of regional cardiac motion patterns in cine magnetic resonance imaging (MRI) by a novel spatio-temporal saliency descriptor. METHOD The strategy starts by dividing the cardiac sequence into a progression of scales which are in due turn mapped to a feature space of regional orientation changes, mimicking the multi-resolution decomposition of oriented primitive changes of visual systems. These changes are estimated as the difference between a particular time and the rest of the sequence. This decomposition is then temporarily and regionally integrated for a particular orientation and then for the set of different orientations. A final spatio-temporal 4D saliency map is obtained as the summation of the previously integrated information for the available scales. The saliency dispersion of this map was computed in standard cardiac locations as a measure of the regional motion pattern and was applied to discriminate control and hypertrophic cardiomyopathy (HCM) subjects during the diastolic phase. RESULTS Salient motion patterns were estimated from an experimental set, which consisted of 3D sequences acquired by MRI from 108 subjects (33 control, 35 HCM, 20 dilated cardiomyopathy (DCM), and 20 myocardial infarction (MINF) from heterogeneous datasets). HCM and control subjects were classified by an SVM that learned the salient motion patterns estimated from the presented strategy, by achieving a 94% AUC. In addition, statistical differences (test t-student, p<0.05) were found among groups of disease in the septal and anterior ventricular segments at both the ED and ES, with salient motion characteristics aligned with existing knowledge on the diseases. CONCLUSIONS Regional wall motion abnormality in the apical, anterior, basal, and inferior segments was associated with the saliency dispersion in HCM, DCM, and MINF compared to healthy controls during the systolic and diastolic phases. This saliency analysis may be used to detect subtle changes in heart function.
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Affiliation(s)
- Angélica Atehortúa
- Universidad Nacional de Colombia, Bogotá, Colombia; Univ Rennes, Inserm, LTSI UMR 1099, Rennes F-35000, France
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De Lazzari B, Iacovoni A, Capoccia M, Papa S, Badagliacca R, Filomena D, De Lazzari C. Ventricular and Atrial Pressure—Volume Loops: Analysis of the Effects Induced by Right Centrifugal Pump Assistance. Bioengineering (Basel) 2022; 9:bioengineering9050181. [PMID: 35621459 PMCID: PMC9137510 DOI: 10.3390/bioengineering9050181] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Revised: 04/06/2022] [Accepted: 04/17/2022] [Indexed: 11/16/2022] Open
Abstract
The main indications for right ventricular assist device (RVAD) support are right heart failure after implantation of a left ventricular assist device (LVAD) or early graft failure following heart transplantation. We sought to study the effects induced by different RVAD connections when right ventricular elastance (EesRIGHT) was modified using numerical simulations based on atrial and ventricular pressure–volume analysis. We considered the effects induced by continuous-flow RVAD support on left/right ventricular/atrial loops when EesRIGHT changed from 0.3 to 0.8 mmHg/mL during in-series or parallel pump connection. Pump rotational speed was also addressed. Parallel RVAD support at 4000 rpm with EesRIGHT = 0.3 mmHg/mL generated percentage changes up to 60% for left ventricular pressure–volume area and external work; up to 20% for left ventricular ESV and up to 25% for left ventricular EDV; up to 50% change in left atrial pressure-volume area (PVLAL-A) and only a 3% change in right atrial pressure–volume area (PVLAR-A). Percentage variation was lower when EesRIGHT = 0.8 mmHg/mL. Early recognition of right ventricular failure followed by aggressive treatment is desirable, so as to achieve a more favourable outcome. RVAD support remains an option for advanced right ventricular failure, although the onset of major adverse events may preclude its use.
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Affiliation(s)
- Beatrice De Lazzari
- Department of Human Movement and Sport Sciences, “Foro Italico” 4th University of Rome, 00135 Rome, Italy;
| | - Attilio Iacovoni
- Department of Cardiology, ASST-Papa Giovanni XIII Hospital, 24127 Bergamo, Italy;
| | - Massimo Capoccia
- Department of Cardiac Surgery, Leeds General Infirmary, Leeds Teaching Hospitals NHS Trust, Leeds LS1 3EX, UK
- Department of Biomedical Engineering, University of Strathclyde, Glasgow G4 0NW, UK
- Correspondence:
| | - Silvia Papa
- Department of Clinical, Internal Anesthesiology and Cardiovascular Sciences, “Sapienza” University of Rome, 00185 Rome, Italy; (S.P.); (R.B.); (D.F.)
| | - Roberto Badagliacca
- Department of Clinical, Internal Anesthesiology and Cardiovascular Sciences, “Sapienza” University of Rome, 00185 Rome, Italy; (S.P.); (R.B.); (D.F.)
| | - Domenico Filomena
- Department of Clinical, Internal Anesthesiology and Cardiovascular Sciences, “Sapienza” University of Rome, 00185 Rome, Italy; (S.P.); (R.B.); (D.F.)
| | - Claudio De Lazzari
- National Research Council, Institute of Clinical Physiology (IFC-CNR), 00185 Rome, Italy;
- Faculty of Medicine, Teaching University Geomedi, Tbilisi 0114, Georgia
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Yang S, Ji K, Chen X, Li F, Yang K, Yu S, Zheng Y, Song Y, Zhao K, Lu M, Wang S, Wang S, Zhao S. Left Ventricular Myocardial Remodeling and Prognostic Marker Derived from Postmyectomy Cardiac MRI Feature Tracking in Hypertrophic Obstructive Cardiomyopathy. Radiol Cardiothorac Imaging 2022; 4:e210172. [PMID: 35506138 PMCID: PMC9059098 DOI: 10.1148/ryct.210172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 01/11/2022] [Accepted: 02/16/2022] [Indexed: 11/11/2022]
Abstract
Purpose To investigate myocardial remodeling using cardiac MRI (CMR) feature tracking (FT) and to explore the relationship between CMR parameters with outcomes in hypertrophic obstructive cardiomyopathy (HOCM) after myectomy. Materials and Methods In this single-center retrospective study, patients with HOCM undergoing myectomy between 2011 and 2019 were included. Pre- and postmyectomy global and regional strains were compared. Healthy participants were included for comparison. Composite events were recorded at follow-up performed after a minimum of 12 months. The paired-samples t test was utilized to compare pre- and postmyectomy variables. Results A total of 73 patients (44 years ± 14 [SD]; 45 men) were evaluated. Compared with preoperative parameters, global circumferential strain (CS) (-17.6% ± 4.4 vs -16.7% ± 3.9, P = .02) was impaired, but global longitudinal strain (LS) was improved (-9.3% ± 2.8 vs -10.8% ± 3.3, P < .001). Septal CS (-14.2% ± 4.0 vs -11.0% ± 4.4, P < .001) and septal radial strain (RS) (16.4% ± 10.6 vs 13.7% ± 9.5, P = .007) worsened, while septal LS (-8.1% ± 3.5 vs -10.2% ± 3.4, P < .001), lateral RS (40.1% ± 16.6 vs 54.4% ± 22.6, P < .001), lateral CS (-20.2% ± 4.1 vs -23.1% ± 4.8, P < .001), and lateral LS (-5.6% ± 5.6 vs -8.4% ± 5.2, P = .001) were improved. Sixteen of 73 patients (22%) experienced composite events after median follow-up of 39.1 months. Postoperative global CS provided the highest discrimination for composite event occurrence (area under the receiver operating characteristic curve, 0.73; 95% CI: 0.61, 0.83) with a cutoff of -16.7%. Patients with postoperative global CS greater than -16.7% had reduced event-free survival compared with those with postoperative global CS less than or equal to -16.7% (log-rank P = .002). Conclusion CMR-FT analysis demonstrated longitudinal and lateral restorations, but impaired global CS, after myectomy in patients with HOCM; furthermore, increased global CS was associated with poorer outcomes.Keywords: MR Imaging, Cardiac, Outcomes Analysis, Comparative Studies, Surgery© RSNA, 2022 Supplemental material is available for this article.
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Affiliation(s)
| | | | - Xiuyu Chen
- From the MR Center (S. Yang, K.J., X.C., F.L., K.Y., S. Yu, Y.S.,
M.L., S.Z.) and Department of Cardiac Surgery (Shuiyun Wang), Fuwai Hospital,
State Key Laboratory of Cardiovascular Disease, National Center for
Cardiovascular Diseases of China, Chinese Academy of Medical Sciences and Peking
Union Medical College, Beilishi Rd 167, Xicheng District, Beijing 100037, China;
Department of Radiology, Tsinghua University Hospital, Tsinghua University,
Beijing, China (Y.Z.); Paul C. Lauterbur Research Center for Biomedical Imaging,
Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences,
Shenzhen, China (K.Z.); and Department of Cardiovascular Surgery Center, Beijing
Anzhen Hospital, Capital Medical University, Beijing Institute of Heart, Lung
and Blood Vascular Diseases, Beijing, China (Shengwei Wang)
| | - Fei Li
- From the MR Center (S. Yang, K.J., X.C., F.L., K.Y., S. Yu, Y.S.,
M.L., S.Z.) and Department of Cardiac Surgery (Shuiyun Wang), Fuwai Hospital,
State Key Laboratory of Cardiovascular Disease, National Center for
Cardiovascular Diseases of China, Chinese Academy of Medical Sciences and Peking
Union Medical College, Beilishi Rd 167, Xicheng District, Beijing 100037, China;
Department of Radiology, Tsinghua University Hospital, Tsinghua University,
Beijing, China (Y.Z.); Paul C. Lauterbur Research Center for Biomedical Imaging,
Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences,
Shenzhen, China (K.Z.); and Department of Cardiovascular Surgery Center, Beijing
Anzhen Hospital, Capital Medical University, Beijing Institute of Heart, Lung
and Blood Vascular Diseases, Beijing, China (Shengwei Wang)
| | - Kai Yang
- From the MR Center (S. Yang, K.J., X.C., F.L., K.Y., S. Yu, Y.S.,
M.L., S.Z.) and Department of Cardiac Surgery (Shuiyun Wang), Fuwai Hospital,
State Key Laboratory of Cardiovascular Disease, National Center for
Cardiovascular Diseases of China, Chinese Academy of Medical Sciences and Peking
Union Medical College, Beilishi Rd 167, Xicheng District, Beijing 100037, China;
Department of Radiology, Tsinghua University Hospital, Tsinghua University,
Beijing, China (Y.Z.); Paul C. Lauterbur Research Center for Biomedical Imaging,
Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences,
Shenzhen, China (K.Z.); and Department of Cardiovascular Surgery Center, Beijing
Anzhen Hospital, Capital Medical University, Beijing Institute of Heart, Lung
and Blood Vascular Diseases, Beijing, China (Shengwei Wang)
| | - Shiqin Yu
- From the MR Center (S. Yang, K.J., X.C., F.L., K.Y., S. Yu, Y.S.,
M.L., S.Z.) and Department of Cardiac Surgery (Shuiyun Wang), Fuwai Hospital,
State Key Laboratory of Cardiovascular Disease, National Center for
Cardiovascular Diseases of China, Chinese Academy of Medical Sciences and Peking
Union Medical College, Beilishi Rd 167, Xicheng District, Beijing 100037, China;
Department of Radiology, Tsinghua University Hospital, Tsinghua University,
Beijing, China (Y.Z.); Paul C. Lauterbur Research Center for Biomedical Imaging,
Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences,
Shenzhen, China (K.Z.); and Department of Cardiovascular Surgery Center, Beijing
Anzhen Hospital, Capital Medical University, Beijing Institute of Heart, Lung
and Blood Vascular Diseases, Beijing, China (Shengwei Wang)
| | - Yucong Zheng
- From the MR Center (S. Yang, K.J., X.C., F.L., K.Y., S. Yu, Y.S.,
M.L., S.Z.) and Department of Cardiac Surgery (Shuiyun Wang), Fuwai Hospital,
State Key Laboratory of Cardiovascular Disease, National Center for
Cardiovascular Diseases of China, Chinese Academy of Medical Sciences and Peking
Union Medical College, Beilishi Rd 167, Xicheng District, Beijing 100037, China;
Department of Radiology, Tsinghua University Hospital, Tsinghua University,
Beijing, China (Y.Z.); Paul C. Lauterbur Research Center for Biomedical Imaging,
Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences,
Shenzhen, China (K.Z.); and Department of Cardiovascular Surgery Center, Beijing
Anzhen Hospital, Capital Medical University, Beijing Institute of Heart, Lung
and Blood Vascular Diseases, Beijing, China (Shengwei Wang)
| | - Yanyan Song
- From the MR Center (S. Yang, K.J., X.C., F.L., K.Y., S. Yu, Y.S.,
M.L., S.Z.) and Department of Cardiac Surgery (Shuiyun Wang), Fuwai Hospital,
State Key Laboratory of Cardiovascular Disease, National Center for
Cardiovascular Diseases of China, Chinese Academy of Medical Sciences and Peking
Union Medical College, Beilishi Rd 167, Xicheng District, Beijing 100037, China;
Department of Radiology, Tsinghua University Hospital, Tsinghua University,
Beijing, China (Y.Z.); Paul C. Lauterbur Research Center for Biomedical Imaging,
Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences,
Shenzhen, China (K.Z.); and Department of Cardiovascular Surgery Center, Beijing
Anzhen Hospital, Capital Medical University, Beijing Institute of Heart, Lung
and Blood Vascular Diseases, Beijing, China (Shengwei Wang)
| | - Kankan Zhao
- From the MR Center (S. Yang, K.J., X.C., F.L., K.Y., S. Yu, Y.S.,
M.L., S.Z.) and Department of Cardiac Surgery (Shuiyun Wang), Fuwai Hospital,
State Key Laboratory of Cardiovascular Disease, National Center for
Cardiovascular Diseases of China, Chinese Academy of Medical Sciences and Peking
Union Medical College, Beilishi Rd 167, Xicheng District, Beijing 100037, China;
Department of Radiology, Tsinghua University Hospital, Tsinghua University,
Beijing, China (Y.Z.); Paul C. Lauterbur Research Center for Biomedical Imaging,
Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences,
Shenzhen, China (K.Z.); and Department of Cardiovascular Surgery Center, Beijing
Anzhen Hospital, Capital Medical University, Beijing Institute of Heart, Lung
and Blood Vascular Diseases, Beijing, China (Shengwei Wang)
| | - Minjie Lu
- From the MR Center (S. Yang, K.J., X.C., F.L., K.Y., S. Yu, Y.S.,
M.L., S.Z.) and Department of Cardiac Surgery (Shuiyun Wang), Fuwai Hospital,
State Key Laboratory of Cardiovascular Disease, National Center for
Cardiovascular Diseases of China, Chinese Academy of Medical Sciences and Peking
Union Medical College, Beilishi Rd 167, Xicheng District, Beijing 100037, China;
Department of Radiology, Tsinghua University Hospital, Tsinghua University,
Beijing, China (Y.Z.); Paul C. Lauterbur Research Center for Biomedical Imaging,
Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences,
Shenzhen, China (K.Z.); and Department of Cardiovascular Surgery Center, Beijing
Anzhen Hospital, Capital Medical University, Beijing Institute of Heart, Lung
and Blood Vascular Diseases, Beijing, China (Shengwei Wang)
| | - Shengwei Wang
- From the MR Center (S. Yang, K.J., X.C., F.L., K.Y., S. Yu, Y.S.,
M.L., S.Z.) and Department of Cardiac Surgery (Shuiyun Wang), Fuwai Hospital,
State Key Laboratory of Cardiovascular Disease, National Center for
Cardiovascular Diseases of China, Chinese Academy of Medical Sciences and Peking
Union Medical College, Beilishi Rd 167, Xicheng District, Beijing 100037, China;
Department of Radiology, Tsinghua University Hospital, Tsinghua University,
Beijing, China (Y.Z.); Paul C. Lauterbur Research Center for Biomedical Imaging,
Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences,
Shenzhen, China (K.Z.); and Department of Cardiovascular Surgery Center, Beijing
Anzhen Hospital, Capital Medical University, Beijing Institute of Heart, Lung
and Blood Vascular Diseases, Beijing, China (Shengwei Wang)
| | - Shuiyun Wang
- From the MR Center (S. Yang, K.J., X.C., F.L., K.Y., S. Yu, Y.S.,
M.L., S.Z.) and Department of Cardiac Surgery (Shuiyun Wang), Fuwai Hospital,
State Key Laboratory of Cardiovascular Disease, National Center for
Cardiovascular Diseases of China, Chinese Academy of Medical Sciences and Peking
Union Medical College, Beilishi Rd 167, Xicheng District, Beijing 100037, China;
Department of Radiology, Tsinghua University Hospital, Tsinghua University,
Beijing, China (Y.Z.); Paul C. Lauterbur Research Center for Biomedical Imaging,
Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences,
Shenzhen, China (K.Z.); and Department of Cardiovascular Surgery Center, Beijing
Anzhen Hospital, Capital Medical University, Beijing Institute of Heart, Lung
and Blood Vascular Diseases, Beijing, China (Shengwei Wang)
| | - Shihua Zhao
- From the MR Center (S. Yang, K.J., X.C., F.L., K.Y., S. Yu, Y.S.,
M.L., S.Z.) and Department of Cardiac Surgery (Shuiyun Wang), Fuwai Hospital,
State Key Laboratory of Cardiovascular Disease, National Center for
Cardiovascular Diseases of China, Chinese Academy of Medical Sciences and Peking
Union Medical College, Beilishi Rd 167, Xicheng District, Beijing 100037, China;
Department of Radiology, Tsinghua University Hospital, Tsinghua University,
Beijing, China (Y.Z.); Paul C. Lauterbur Research Center for Biomedical Imaging,
Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences,
Shenzhen, China (K.Z.); and Department of Cardiovascular Surgery Center, Beijing
Anzhen Hospital, Capital Medical University, Beijing Institute of Heart, Lung
and Blood Vascular Diseases, Beijing, China (Shengwei Wang)
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35
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Holz D, Du'o'ng MT, Martonová D, Alkassar M, Leyendecker S. A Transmural Path Model Improves the Definition of the Orthotropic Tissue Structure in Heart Simulations. J Biomech Eng 2022; 144:1116030. [PMID: 34423814 DOI: 10.1115/1.4052219] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Indexed: 01/19/2023]
Abstract
In the past decades, the structure of the heart, human as well as other species, has been explored in a detailed way, e.g., via histological studies or diffusion tensor magnetic resonance imaging. Nevertheless, the assignment of the characteristic orthotropic structure in a patient-specific finite element model remains a challenging task. Various types of rule-based models, which define the local fiber and sheet orientation depending on the transmural depth, have been developed. However, the correct assessment of the transmural depth is not trivial. Its accuracy has a substantial influence on the overall mechanical and electrical properties in rule-based models. The main purpose of this study is the development of a finite element-based approach to accurately determine the transmural depth on a general unstructured grid. Instead of directly using the solution of the Laplace problem as the transmural depth, we make use of a well-established model for the assessment of the transmural thickness. It is based on two hyperbolic first-order partial differential equations for the definition of a transmural path, whereby the transmural thickness is defined as the arc length of this path. Subsequently, the transmural depth is determined based on the position on the transmural path. Originally, the partial differential equations were solved via finite differences on structured grids. In order to circumvent the need of two grids and mapping between the structured (to determine the transmural depth) and unstructured (electromechanical heart simulation) grids, we solve the equations directly on the same unstructured tetrahedral mesh. We propose a finite-element-based discontinuous Galerkin approach. Based on the accurate transmural depth, we assign the local material orientation of the orthotropic tissue structure in a usual fashion. We show that this approach leads to a more accurate definition of the transmural depth. Furthermore, for the left ventricle, we propose functions for the transmural fiber and sheet orientation by fitting them to literature-based diffusion tensor magnetic resonance imaging data. The proposed functions provide a distinct improvement compared to existing rules from the literature.
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Affiliation(s)
- David Holz
- Institute of Applied Dynamics (LTD), Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen 91054, Bavaria, Germany
| | - Minh Tuấn Du'o'ng
- Institute of Applied Dynamics (LTD), Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen 91054, Bavaria, Germany; School of Mechanical Engineering, Hanoi University of Science and Technology, Ha Noi, Viet Nam
| | - Denisa Martonová
- Institute of Applied Dynamics (LTD), Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen 91054, Bavaria, Germany
| | - Muhannad Alkassar
- Pediatric Cardiology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen 91054, Bavaria, Germany
| | - Sigrid Leyendecker
- Institute of Applied Dynamics (LTD), Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen 91054, Bavaria, Germany
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36
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Oh JK, Park JH. Role of strain echocardiography in patients with hypertension. Clin Hypertens 2022; 28:6. [PMID: 35164856 PMCID: PMC8845306 DOI: 10.1186/s40885-021-00186-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Accepted: 11/19/2021] [Indexed: 01/19/2023] Open
Abstract
AbstractHypertension is a well-recognized risk factor for the development of cardiovascular disease, and the early detection of cardiac changes from hypertension can allow reversing these. Hypertensive heart diseases (HHD) refer to the complex and diverse change of the cardiac structure and function secondary to hypertension. Although conventional echocardiography is the most common imaging modality in detecting HHD, it cannot detect subtle changes of cardiac structure in subclinical states. Because strain echocardiography is another echocardiographic modality can detect subclinical myocardial dysfunction by measuring intrinsic myocardial deformation, it became more and more popular in clinical and research fields. In this review article, we described the basic concept of strain echocardiography and summarized several clinical studies showing its clinical utilities in the detection of HHD.
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37
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Seno A, Antiochos P, Lichtenfeld H, Rickers E, Qamar I, Ge Y, Blankstein R, Steigner M, Aghayev A, Jerosch-Herold M, Kwong RY. Prognostic Value of T1 Mapping and Feature Tracking by Cardiac Magnetic Resonance in Patients With Signs and Symptoms Suspecting Heart Failure and No Clinical Evidence of Coronary Artery Disease. J Am Heart Assoc 2022; 11:e020981. [PMID: 35023344 PMCID: PMC9238540 DOI: 10.1161/jaha.121.020981] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background The ability of left ventricular ejection fraction (LVEF) and late gadolinium enhancement (LGE) by cardiac magnetic resonance for risk stratification in suspected heart failure is limited. We aimed to evaluate the incremental prognostic value of cardiac magnetic resonance‐assessed extracellular volume fraction (ECV) and global longitudinal strain (GLS) in patients with signs and symptoms suspecting heart failure and no clinical evidence of coronary artery disease. Methods and Results A total of 474 consecutive patients (57±21 years of age, 56% men) with heart failure‐related symptoms and absence of coronary artery disease underwent cardiac magnetic resonance. After median follow‐up of 18 months, 59 (12%) experienced the outcome of all‐cause death or heart failure hospitalization (DeathCHF). In univariate analysis, cardiac magnetic resonance‐assessed LVEF, LGE, GLS, and ECV were all significantly associated with DeathCHF. Adjusted for a multivariable baseline model including age, sex, LVEF and LGE, ECV, and GLS separately maintained a significant association with DeathCHF (ECV, hazard ratio [HR], 1.44 per 1 SD increase; 95% CI 1.13–1.84; P=0.003, and GLS, HR, 1.78 per 1 SD increase; 95% CI, 1.06–2.96; P=0.028 respectively). Adding both GLS and ECV to the baseline model significantly improved model discrimination (C statistic from 0.749 to 0.782, P=0.017) and risk reclassification (integrated discrimination improvement 0.046 [0.015–0.076], P=0.003; continuous net reclassification improvement 0.378 [0.065–0.752], P<0.001) for DeathCHF, beyond LVEF and LGE. Conclusions In patients with signs and symptoms suspecting heart failure and no clinical evidence of coronary artery disease, joint assessment of GLS and ECV provides incremental prognostic value for DeathCHF, independent of LVEF and LGE.
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Affiliation(s)
- Ayako Seno
- Cardiovascular Imaging Section Cardiovascular Division of Department of Medicine and Department of Radiology Brigham and Women's Hospital Boston MA
| | - Panagiotis Antiochos
- Cardiovascular Imaging Section Cardiovascular Division of Department of Medicine and Department of Radiology Brigham and Women's Hospital Boston MA
| | - Helena Lichtenfeld
- Cardiovascular Imaging Section Cardiovascular Division of Department of Medicine and Department of Radiology Brigham and Women's Hospital Boston MA
| | - Eva Rickers
- Cardiovascular Imaging Section Cardiovascular Division of Department of Medicine and Department of Radiology Brigham and Women's Hospital Boston MA
| | - Iqra Qamar
- Cardiovascular Imaging Section Cardiovascular Division of Department of Medicine and Department of Radiology Brigham and Women's Hospital Boston MA
| | - Yin Ge
- Cardiovascular Imaging Section Cardiovascular Division of Department of Medicine and Department of Radiology Brigham and Women's Hospital Boston MA
| | - Ron Blankstein
- Cardiovascular Imaging Section Cardiovascular Division of Department of Medicine and Department of Radiology Brigham and Women's Hospital Boston MA.,Cardiovascular Division Brigham and Women's Hospital Boston MA
| | - Michael Steigner
- Cardiovascular Imaging Section Cardiovascular Division of Department of Medicine and Department of Radiology Brigham and Women's Hospital Boston MA
| | - Ayaz Aghayev
- Cardiovascular Imaging Section Cardiovascular Division of Department of Medicine and Department of Radiology Brigham and Women's Hospital Boston MA
| | - Michael Jerosch-Herold
- Cardiovascular Imaging Section Cardiovascular Division of Department of Medicine and Department of Radiology Brigham and Women's Hospital Boston MA
| | - Raymond Y Kwong
- Cardiovascular Imaging Section Cardiovascular Division of Department of Medicine and Department of Radiology Brigham and Women's Hospital Boston MA.,Cardiovascular Division Brigham and Women's Hospital Boston MA
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38
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OUP accepted manuscript. Eur Heart J Cardiovasc Imaging 2022; 23:944-955. [DOI: 10.1093/ehjci/jeac045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Accepted: 02/19/2022] [Indexed: 11/12/2022] Open
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39
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Agha HM, Othman MA, El-Saiedi S, El Zahrae Hassan F, Taher H, El-Sisi A, Sobhy R, AbdelMassih A. Early onset left ventricular remodeling in juvenile systemic lupus erythematosus; Insight from 3-dimensional speckle tracking echocardiography. Lupus 2021; 30:2114-2123. [PMID: 34794349 DOI: 10.1177/09612033211051302] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Early diagnosis and treatment of myocardial affection in patients with systemic lupus erythematosus (SLE) are crucial. OBJECTIVES To evaluate the ventricular systolic function in juvenile-onset systemic lupus erythematosus (j-SLE) patients by 3-D speckle tracking echocardiography (3D-STE) and to determine the predictors of left ventricular (LV) dysfunction if present. METHODS Twenty-six SLE patients without heart failure and 21 healthy controls were studied by standard echocardiogram and 3D-STE. Conventional parameters included LV ejection fraction (EF), fractional shortening (FS), and mitral annular plane systolic excursion (MAPSE). Global LV strain (GLS) and global area strain (GAS) were obtained by 3D-STE. Medical records, including diagnosis criteria, duration of disease, and SLE disease activity index (SLEDAI) were evaluated. RESULTS The mean age was similar in patients and controls 11.42 vs 11.48 years p = 0.93. The mean duration of the disease was 1.87 ± 1.02 years and SLEDAI ranged from 0 to 9. By conventional and tissue Doppler imaging echocardiography, only MAPSE was significantly lower in SLE patients compared to controls (14.56 vs 18.46 mm, p < 0.001). By 3D speckle tracking echocardiography, GLS and GAS were significantly reduced in SLE patients compared to controls (-15.07 vs -19.9.4%, -34.6% vs -39.7%, respectively, p < 0.001). Multiple linear regression and ROC analyses indicated that the SLEDAI score was the only predictive factor for the left ventricular remodeling. CONCLUSIONS These results indicate that early subclinical LV dysfunction occur in jSLE patients even with normal EF and SLE disease activity might be a potential driver for LV deformation.
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Affiliation(s)
- Hala M Agha
- Department of Pediatrics, Pediatric Cardiology Division, Specialized Pediatric Hospital, 63527Cairo University, Cairo, Egypt
| | - Mahmoud A Othman
- Department of Pediatrics, Pediatric Cardiology Division, Specialized Pediatric Hospital, 63527Cairo University, Cairo, Egypt
| | - Sonia El-Saiedi
- Department of Pediatrics, Pediatric Cardiology Division, Specialized Pediatric Hospital, 63527Cairo University, Cairo, Egypt
| | - Fatma El Zahrae Hassan
- Department of Pediatrics, Pediatric Cardiology Division, Specialized Pediatric Hospital, 63527Cairo University, Cairo, Egypt
| | - Heba Taher
- Department of Pediatrics, Pediatric Rheumatology Unit, Specialized Pediatric Hospital, 63527Cairo University, Cairo, Egypt
| | - Amal El-Sisi
- Department of Pediatrics, Pediatric Cardiology Division, Specialized Pediatric Hospital, 63527Cairo University, Cairo, Egypt
| | - Rodina Sobhy
- Department of Pediatrics, Pediatric Cardiology Division, Specialized Pediatric Hospital, 63527Cairo University, Cairo, Egypt
| | - Antoine AbdelMassih
- Department of Pediatrics, Pediatric Cardiology Division, Specialized Pediatric Hospital, 63527Cairo University, Cairo, Egypt
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40
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Sonaglioni A, Nicolosi GL, Braga M, Villa MC, Migliori C, Lombardo M. Does chest wall conformation influence myocardial strain parameters in infants with pectus excavatum? JOURNAL OF CLINICAL ULTRASOUND : JCU 2021; 49:918-928. [PMID: 34523718 DOI: 10.1002/jcu.23064] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Revised: 08/31/2021] [Accepted: 09/03/2021] [Indexed: 06/13/2023]
Abstract
PURPOSE To investigate the possible influence of chest wall conformation on myocardial strain parameters in a consecutive population of infants with pectus excavatum (PE), noninvasively assessed by modified Haller index (MHI). METHODS Sixteen consecutive PE infants (MHI >2.5) and 44 infants with normal chest shape (MHI ≤2.5) entered in this prospective case-control study. All infants underwent evaluation by neonatologist, transthoracic echocardiography implemented with two-dimensional speckle tracking echocardiography (2D-STE) analysis of both ventricles and MHI assessment (ratio of chest transverse diameter over the distance between sternum and spine), at two time points: within 3 days and at about 40 days of life. RESULTS At 2.1 ± 1 days of life, compared to controls (MHI = 2.01 ± 0.2), PE infants (MHI = 2.76 ± 0.2) were diagnosed with significantly smaller cardiac chambers dimensions. Biventricular contractile function and hemodynamics were similar in both groups of infants. Left ventricular (LV) global longitudinal strain (GLS) (-16.0 ± 2.8 vs. -21.7 ± 2.2%), LV-global circumferential strain (GCS) (-16.3 ± 2.7 vs. -24.0 ± 5.2%), LV-global radial strain (GRS) (24.2 ± 3.0 vs. 31.5 ± 6.3%), and right ventricular free wall longitudinal strain (RVFWLS) (-16.0 ± 3.2 vs. -22.3 ± 4.4%) were significantly reduced in PE infants versus controls (all p < 0.001). A strong inverse correlation between MHI and the following parameters: LV-GLS (r = -0.92), LV-GCS (r = -0.88), LV-GRS (r = -0.87), and RVFWLS (r = -0.88), was demonstrated in PE infants, but not in controls, in perinatal period (all p < 0.001). Analogous results were obtained at 36.8 ± 5.2 days after birth. CONCLUSIONS Abnormal chest anatomy progressively impairs myocardial strain parameters in PE infants. This impairment might reflect intraventricular dyssynchrony due to compressive phenomena rather than intrinsic myocardial dysfunction.
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Affiliation(s)
| | | | - Marta Braga
- Department of Neonatology, IRCCS MultiMedica, Milan, Italy
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41
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Paysal J, Merlin E, Rochette E, Terral D, Nottin S. Global and Regional Myocardial Work in Female Adolescents with Weight Disorders. J Clin Med 2021; 10:jcm10204671. [PMID: 34682793 PMCID: PMC8537237 DOI: 10.3390/jcm10204671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 09/28/2021] [Accepted: 10/08/2021] [Indexed: 11/22/2022] Open
Abstract
Background: Anorexia nervosa (AN) and obesity (OB) lead to changes in SBP (i.e., loading conditions) that may affect left ventricular (LV) myocardial work (MW). The novel concept of LV pressure-strain loops allows non-invasive estimation of MW, this latter being correlated with cardiac energy metabolism. In addition, the study of regional MW can detect subtle alterations in cardiac function by highlighting an abnormal distribution of MW. Objective: The aim of this study was to assess the cardiac function of AN and OB patients by evaluating global and regional LV strains and MW. Methods: Eighty-seven female adolescents, comprising 26 with AN (14.6 ± 1.9 yrs. old), 28 with OB (13.2 ± 1.4 yrs. old), and 33 controls (14.0 ± 2.0 yrs. old) underwent speckle-tracking echography to assess global and regional LV strains and MW. Results: SBP was higher in adolescents with obesity than in AN patients or controls. Global MW was similar between groups. In AN patients and controls, longitudinal strains were higher at the apex than at the base of the LV, whereas they were similar in obesity patients, owing to a decrease in their apical longitudinal strain. Consequently, their MW was higher at the basal level than either of the other two groups (1854 ± 272 vs. 1501 ± 280 vs. 1575 ± 295 mmHg% in OB patients, AN patients, and controls, respectively. Conclusion: Despite altered SBP, the global MW of adolescents with weight disorders was unaffected. However, in adolescents with obesity, the distribution of their regional LV MW was altered, which might reflect specific regional remodeling.
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Affiliation(s)
- Justine Paysal
- LAPEC EA4278 Laboratory, Avignon University, F-84000 Avignon, France;
- Néonatologie et Réanimation Pédiatrique, CHU Clermont-Ferrand, F-63000 Clermont-Ferrand, France
| | - Etienne Merlin
- Pédiatrie, CHU Clermont-Ferrand, F-63000 Clermont-Ferrand, France; (E.M.); (E.R.); (D.T.)
- INSERM, CIC 1405, Unité CRECHE, Université Clermont Auvergne, F-63000 Clermont-Ferrand, France
| | - Emmanuelle Rochette
- Pédiatrie, CHU Clermont-Ferrand, F-63000 Clermont-Ferrand, France; (E.M.); (E.R.); (D.T.)
- INSERM, CIC 1405, Unité CRECHE, Université Clermont Auvergne, F-63000 Clermont-Ferrand, France
| | - Daniel Terral
- Pédiatrie, CHU Clermont-Ferrand, F-63000 Clermont-Ferrand, France; (E.M.); (E.R.); (D.T.)
| | - Stéphane Nottin
- LAPEC EA4278 Laboratory, Avignon University, F-84000 Avignon, France;
- Correspondence: ; Tel.: +33-490-162-931
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42
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Deficient Myocardial Organization and Pathological Fibrosis in Fetal Aortic Stenosis-Association of Prenatal Ultrasound with Postmortem Histology. J Cardiovasc Dev Dis 2021; 8:jcdd8100121. [PMID: 34677190 PMCID: PMC8540431 DOI: 10.3390/jcdd8100121] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 09/17/2021] [Accepted: 09/23/2021] [Indexed: 01/08/2023] Open
Abstract
In fetal aortic stenosis (AS), it remains challenging to predict left ventricular development over the course of pregnancy. Myocardial organization, differentiation and fibrosis could be potential biomarkers relevant for biventricular outcome. We present four cases of fetal AS with varying degrees of severity and associate myocardial deformation on fetal ultrasound with postmortem histopathological characteristics. During routine fetal echocardiography, speckle tracking recordings of the cardiac four-chamber view were performed to assess myocardial strain as parameter for myocardial deformation. After pregnancy termination, postmortem cardiac specimens were examined using immunohistochemical labeling (IHC) of key markers for myocardial organization, differentiation and fibrosis and compared to normal fetal hearts. Two cases with critical AS presented extremely decreased left ventricular (LV) strain on fetal ultrasound. IHC showed overt endocardial fibro-elastosis, which correlated with pathological fibrosis patterns in the myocardium and extremely disturbed cardiomyocyte organization. The LV in severe AS showed mildly reduced myocardial strain and less severe disorganization of the cardiomyocytes. In conclusion, the degree of reduction in myocardial deformation corresponded with high extent to the amount of pathological fibrosis patterns and cardiomyocyte disorganization. Myocardial deformation on fetal ultrasound seems to hold promise as a potential biomarker for left ventricular structural damage in AS.
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43
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Tomoaia R, Beyer RȘ, Zdrenghea D, Dădârlat-Pop A, Popescu MI, Cismaru G, Gușetu G, Șerban AM, Simu GR, Minciună IA, Caloian B, Roșu R, Chețan MI, Pop D. Impact of Three-Dimensional Strain on Major Adverse Cardiovascular Events after Acute Myocardial Infarction Managed by Primary Percutaneous Coronary Intervention-A Pilot Study. Life (Basel) 2021; 11:life11090930. [PMID: 34575079 PMCID: PMC8465252 DOI: 10.3390/life11090930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 09/01/2021] [Accepted: 09/03/2021] [Indexed: 12/03/2022] Open
Abstract
Background: Three-dimensional speckle-tracking echocardiography (3D-STE) allows simultaneous assessment of multidirectional components of strain. However, there are few data on its usefulness to predict prognosis in patients with acute myocardial infarction (AMI). The objective of our pilot study was to evaluate the prognostic value of four different 3D-STE parameters (global longitudinal strain (GLS-3D), global circumferential strain (GCS-3D), global radial strain (GRS-3D), and global area strain (GAS)) in AMI, after successful revascularization by primary PCI. Methods: We enrolled 94 AMI patients (66 ± 13 years, 56% men) who underwent coronary angiography. All patients had been 3D-STE assessed and followed-up for 1 year for the occurrence of MACE. Results: A total of 25 MACE were recorded over follow-up. Cut-off values of −17% for GAS (HR = 3.1, 95% CI: 1.39–6.92, p = 0.005), −12% for GCS-3D (HR = 3.06, 95% CI: 1.36–6.8, p = 0.006), −10% for GLS-3D (HR = 3.04, 95% CI: 1.36–6.78, p = 0.006), and 25% for GRS-3D (HR = 2.89, 95% CI: 1.29–6.46, p = 0.009) showed moderate accuracy in MACE prediction. Multivariate regression showed that GAS (HR = 1.1, 95% CI: 1.03–1.16), GLS-3D (HR = 1.13, 95% CI: 1.03–1.26), and GCS-3D (HR = 1.13, 95% CI: 1.03–1.23) remained independent predictors of MACE (HR = 1.07, 95% CI: 1.01–1.14 for GAS, and HR = 1.1, 95% CI: 1.01–1.2 for GCS-3D). However, post hoc power analysis indicated adequate sample size (power of 80%) only for GAS and GCS-3D for the ROC curve analysis and for GAS, GCS-3D, and GRS-3D for the log-rank test. Conclusion: Patients with AMI might benefit from early risk stratification with the aid of 3D-STE measurements, particularly GAS and GCS-3D, but larger studies are necessary to determine the optimal cut-off values to predict MACE.
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Affiliation(s)
- Raluca Tomoaia
- Cardiology Department, Heart Institute “N. Stăncioiu”, 400001 Cluj-Napoca, Romania; (R.Ș.B.); (A.D.-P.); (A.M.Ș.); (M.I.C.)
- 5th Department of Internal Medicine, Faculty of Medicine, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania; (D.Z.); (G.C.); (G.G.); (G.R.S.); (I.A.M.); (B.C.); (R.R.); (D.P.)
- Correspondence:
| | - Ruxandra Ștefana Beyer
- Cardiology Department, Heart Institute “N. Stăncioiu”, 400001 Cluj-Napoca, Romania; (R.Ș.B.); (A.D.-P.); (A.M.Ș.); (M.I.C.)
| | - Dumitru Zdrenghea
- 5th Department of Internal Medicine, Faculty of Medicine, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania; (D.Z.); (G.C.); (G.G.); (G.R.S.); (I.A.M.); (B.C.); (R.R.); (D.P.)
- Cardiology Department, Rehabilitation Hospital, 400347 Cluj-Napoca, Romania
| | - Alexandra Dădârlat-Pop
- Cardiology Department, Heart Institute “N. Stăncioiu”, 400001 Cluj-Napoca, Romania; (R.Ș.B.); (A.D.-P.); (A.M.Ș.); (M.I.C.)
- 5th Department of Internal Medicine, Faculty of Medicine, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania; (D.Z.); (G.C.); (G.G.); (G.R.S.); (I.A.M.); (B.C.); (R.R.); (D.P.)
| | - Mircea Ioachim Popescu
- Department of Medical Disciplines, Faculty of Medicine and Pharmacy, University of Oradea, 410073 Oradea, Romania;
- Cardiology Department, Clinical County Emergency Hospital of Oradea, 410169 Oradea, Romania
| | - Gabriel Cismaru
- 5th Department of Internal Medicine, Faculty of Medicine, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania; (D.Z.); (G.C.); (G.G.); (G.R.S.); (I.A.M.); (B.C.); (R.R.); (D.P.)
- Cardiology Department, Rehabilitation Hospital, 400347 Cluj-Napoca, Romania
| | - Gabriel Gușetu
- 5th Department of Internal Medicine, Faculty of Medicine, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania; (D.Z.); (G.C.); (G.G.); (G.R.S.); (I.A.M.); (B.C.); (R.R.); (D.P.)
- Cardiology Department, Rehabilitation Hospital, 400347 Cluj-Napoca, Romania
| | - Adela Mihaela Șerban
- Cardiology Department, Heart Institute “N. Stăncioiu”, 400001 Cluj-Napoca, Romania; (R.Ș.B.); (A.D.-P.); (A.M.Ș.); (M.I.C.)
- 5th Department of Internal Medicine, Faculty of Medicine, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania; (D.Z.); (G.C.); (G.G.); (G.R.S.); (I.A.M.); (B.C.); (R.R.); (D.P.)
| | - Gelu Radu Simu
- 5th Department of Internal Medicine, Faculty of Medicine, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania; (D.Z.); (G.C.); (G.G.); (G.R.S.); (I.A.M.); (B.C.); (R.R.); (D.P.)
- Cardiology Department, Rehabilitation Hospital, 400347 Cluj-Napoca, Romania
| | - Ioan Alexandru Minciună
- 5th Department of Internal Medicine, Faculty of Medicine, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania; (D.Z.); (G.C.); (G.G.); (G.R.S.); (I.A.M.); (B.C.); (R.R.); (D.P.)
- Cardiology Department, Rehabilitation Hospital, 400347 Cluj-Napoca, Romania
| | - Bogdan Caloian
- 5th Department of Internal Medicine, Faculty of Medicine, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania; (D.Z.); (G.C.); (G.G.); (G.R.S.); (I.A.M.); (B.C.); (R.R.); (D.P.)
- Cardiology Department, Rehabilitation Hospital, 400347 Cluj-Napoca, Romania
| | - Radu Roșu
- 5th Department of Internal Medicine, Faculty of Medicine, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania; (D.Z.); (G.C.); (G.G.); (G.R.S.); (I.A.M.); (B.C.); (R.R.); (D.P.)
- Cardiology Department, Rehabilitation Hospital, 400347 Cluj-Napoca, Romania
| | - Maria Ioana Chețan
- Cardiology Department, Heart Institute “N. Stăncioiu”, 400001 Cluj-Napoca, Romania; (R.Ș.B.); (A.D.-P.); (A.M.Ș.); (M.I.C.)
- 5th Department of Internal Medicine, Faculty of Medicine, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania; (D.Z.); (G.C.); (G.G.); (G.R.S.); (I.A.M.); (B.C.); (R.R.); (D.P.)
| | - Dana Pop
- 5th Department of Internal Medicine, Faculty of Medicine, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania; (D.Z.); (G.C.); (G.G.); (G.R.S.); (I.A.M.); (B.C.); (R.R.); (D.P.)
- Cardiology Department, Rehabilitation Hospital, 400347 Cluj-Napoca, Romania
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Labus J, Winata J, Schmidt T, Nicolai J, Uhlig C, Sveric K, Alexiou K, Scholz M, Fassl J. Perioperative Two-Dimensional Left Ventricular Global Longitudinal Strain in Coronary Artery Bypass Surgery: A Prospective Observational Pilot Study. J Cardiothorac Vasc Anesth 2021; 36:166-174. [PMID: 34526240 DOI: 10.1053/j.jvca.2021.08.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 07/30/2021] [Accepted: 08/01/2021] [Indexed: 12/24/2022]
Abstract
OBJECTIVES There are limited data on perioperative left ventricular strain. The authors aimed to describe the entire perioperative course of two-dimensional left ventricular global longitudinal strain in patients undergoing coronary artery bypass graft (CABG) surgery and compare to common parameters of LV function assessment. DESIGN Prospective observational study. SETTING Single university hospital. PARTICIPANTS Forty patients scheduled for isolated on-pump CABG surgery with preserved left and right ventricular function with an unremarkable, complication-free perioperative course. INTERVENTIONS Two-dimensional strain analysis and standard echocardiographic assessment of left ventricular function were performed pre- (T1) and postoperatively (T4) by transthoracic echocardiography (TTE) and intraoperatively pre- (T2) and poststernotomy (T3) by transesophageal echocardiography (TEE). Echocardiography was performed under stable hemodynamics and predefined fluid management, in sinus rhythm without any vasoactive support. MEASUREMENTS AND MAIN RESULTS Analysis of two-dimensional LV global longitudinal strain (2D-LV GLS) was performed using Tomtec 2D Cardiac Performance Analysis software. Philips QLAB 10.8 was used to analyze left ventricular ejection fraction (LV EF) and tissue velocity of the lateral mitral annulus (LV S ́). There were no significant differences (median with interquartile range [IQR]) after induction of anesthesia in values of LV EF and 2D-LV GLS (T1 v T2; 59% [IQR, 52 to 64] v 56% [IQR, 51.75 to 63] and -15.2 [IQR, -18.05 to -13.08] v -15.6 [IQR, -17.65 to -13.88]; both not significant [ns]), while LV S´ declined (T1 v T2, 7 cm/s [IQR, 5.25 to 8] v 5.25 cm/s [IQR, 4.6 to 6.83]; p < 0.001). Bland-Altman analysis for this comparison of 2D-LV GLS (T1 v T2) showed that bias was not significant between both techniques; however, there were limits of agreement. After sternotomy (T2 v T3) neither LV EF nor 2D-LV GLS or LV S´ declined. 2D-LV GLS deteriorated significantly after CABG (T1 v T4; -15.2 [IQR, -18.05 to -13.08] v -11.3 [IQR, -15.8 to -9.78]; p < 0.001). In contrast, LV EF and LV S´ did not change significantly in the perioperative interval (T1 v T4; 59% [IQR, 52 to 64] v 56% [IQR, 51.5 to 64.25] and 7 cm/s [IQR, 5.25 to 8] v 7 cm/s [IQR, 6 to 8]; both ns). CONCLUSION Values of 2D-LV GLS did not differ in awake, spontaneously breathing patients assessed by TTE and in anesthetized and ventilated patients with stable hemodynamics measured by TEE. 2D-LV GLS did not change after sternotomy; however, it declined significantly after on-pump CABG, while LV EF and LV S´ remained unchanged.
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Affiliation(s)
- Jakob Labus
- Department of Cardiac Anesthesiology, Heart Center Dresden, University Hospital, Dresden, Germany; Department of Anesthesiology and Intensive Care Medicine, University Hospital and Medical Faculty, Cologne University, Cologne, Germany
| | - Johan Winata
- Department of Cardiac Anesthesiology, Heart Center Dresden, University Hospital, Dresden, Germany
| | - Torsten Schmidt
- Department of Cardiac Anesthesiology, Heart Center Dresden, University Hospital, Dresden, Germany
| | - Joachim Nicolai
- Department of Cardiac Anesthesiology, Heart Center Dresden, University Hospital, Dresden, Germany
| | - Christopher Uhlig
- Department of Cardiac Anesthesiology, Heart Center Dresden, University Hospital, Dresden, Germany
| | - Kunislav Sveric
- Department of Cardiology and Internal Medicine, Heart Center Dresden, University Hospital, Dresden, Germany
| | - Konstantin Alexiou
- Department of Heart Surgery, Heart Center Dresden, University Hospital, Dresden, Germany
| | - Markus Scholz
- Institute for Medical Informatics, Statistics and Epidemiology, Medical Faculty, Leipzig University, Leipzig, Germany
| | - Jens Fassl
- Department of Cardiac Anesthesiology, Heart Center Dresden, University Hospital, Dresden, Germany.
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45
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Hillier E, Friedrich MG. The Potential of Oxygenation-Sensitive CMR in Heart Failure. Curr Heart Fail Rep 2021; 18:304-314. [PMID: 34378154 DOI: 10.1007/s11897-021-00525-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/05/2021] [Indexed: 12/24/2022]
Abstract
PURPOSE OF REVIEW Cardiac magnetic resonance imaging (CMR) use in the context of heart failure (HF) has increased over the last decade as it is able to provide detailed, quantitative information on function, morphology, and myocardial tissue composition. Furthermore, oxygenation-sensitive CMR (OS-CMR) has emerged as a CMR imaging method capable of monitoring changes of myocardial oxygenation without the use of exogenous contrast agents. RECENT FINDINGS The contributions of OS-CMR to the investigation of patients with HF includes not only a fully quantitative assessment of cardiac morphology, function, and tissue characteristics, but also high-resolution information on both endothelium-dependent and endothelium-independent vascular function as assessed through changes of myocardial oxygenation. In patients with heart failure, OS-CMR can provide deep phenotyping on the status and important associated pathophysiology as a one-stop, needle-free diagnostic imaging test.
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Affiliation(s)
- Elizabeth Hillier
- Faculty of Medicine and Health Sciences, McGill University, Montreal, QC, Canada.,Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
| | - Matthias G Friedrich
- Faculty of Medicine and Health Sciences, McGill University, Montreal, QC, Canada. .,Departments of Medicine and Diagnostic Radiology, McGill University, 1001 Decarie Blvd, Montreal, QC, H4A 3J1, Canada.
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46
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Salatzki J, Mohr I, Heins J, Cerci MH, Ochs A, Paul O, Riffel J, André F, Hirschberg K, Müller-Hennessen M, Giannitsis E, Friedrich MG, Merle U, Weiss KH, Katus HA, Ochs M. The impact of Wilson disease on myocardial tissue and function: a cardiovascular magnetic resonance study. J Cardiovasc Magn Reson 2021; 23:84. [PMID: 34162411 PMCID: PMC8223377 DOI: 10.1186/s12968-021-00760-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Accepted: 04/27/2021] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND Systemic effects of altered serum copper processing in Wilson Disease (WD) might induce myocardial copper deposition and consequently myocardial dysfunction and structural remodeling. This study sought to investigate the prevalence, manifestation and predictors of myocardial tissue abnormalities in WD patients. METHODS We prospectively enrolled WD patients and an age-matched group of healthy individuals. We applied cardiovascular magnetic resonance (CMR) to analyze myocardial function, strain, and tissue characteristics. A subgroup analysis of WD patients with predominant neurological (WD-neuro+) or hepatic manifestation only (WD-neuro-) was performed. RESULTS Seventy-six patients (37 years (27-49), 47% women) with known WD and 76 age-matched healthy control subjects were studied. The prevalence of atrial fibrillation in WD patients was 5% and the prevalence of symptomatic heart failure was 2.6%. Compared to healthy controls, patients with WD had a reduced left ventricular global circumferential strain (LV-GCS), and also showed abnormalities consistent with global and regional myocardial fibrosis. WD-neuro+ patients presented with more severe structural remodeling and functional impairment when compared to WD-neuro- patients. CONCLUSIONS In a large cohort, WD was not linked to a distinct cardiac phenotype except CMR indexes of myocardial fibrosis. More research is warranted to assess the prognostic implications of these findings. TRIAL REGISTRATION This trial is registered at the local institutional ethics committee (S-188/2018).
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Affiliation(s)
- Janek Salatzki
- Department of Cardiology, Angiology and Pneumology, Heidelberg University Hospital, Heidelberg, Germany.
- DZHK (German Centre for Cardiovascular Research), Partner site Heidelberg, Heidelberg, Germany.
| | - Isabelle Mohr
- Department of Gastroenterology, Heidelberg University Hospital, Heidelberg, Germany
| | - Jannick Heins
- Department of Cardiology, Angiology and Pneumology, Heidelberg University Hospital, Heidelberg, Germany
| | - Mert H Cerci
- Department of Cardiology, Angiology and Pneumology, Heidelberg University Hospital, Heidelberg, Germany
| | - Andreas Ochs
- Department of Cardiology, Angiology and Pneumology, Heidelberg University Hospital, Heidelberg, Germany
- DZHK (German Centre for Cardiovascular Research), Partner site Heidelberg, Heidelberg, Germany
| | - Oliver Paul
- Department of Cardiology, Angiology and Pneumology, Heidelberg University Hospital, Heidelberg, Germany
| | - Johannes Riffel
- Department of Cardiology, Angiology and Pneumology, Heidelberg University Hospital, Heidelberg, Germany
- DZHK (German Centre for Cardiovascular Research), Partner site Heidelberg, Heidelberg, Germany
| | - Florian André
- Department of Cardiology, Angiology and Pneumology, Heidelberg University Hospital, Heidelberg, Germany
- DZHK (German Centre for Cardiovascular Research), Partner site Heidelberg, Heidelberg, Germany
| | | | - Matthias Müller-Hennessen
- Department of Cardiology, Angiology and Pneumology, Heidelberg University Hospital, Heidelberg, Germany
- DZHK (German Centre for Cardiovascular Research), Partner site Heidelberg, Heidelberg, Germany
| | - Evangelos Giannitsis
- Department of Cardiology, Angiology and Pneumology, Heidelberg University Hospital, Heidelberg, Germany
- Semmelweis University Heart and Vascular Center, Budapest, Hungary
| | - Matthias G Friedrich
- Department of Cardiology, Angiology and Pneumology, Heidelberg University Hospital, Heidelberg, Germany
- Semmelweis University Heart and Vascular Center, Budapest, Hungary
- Division of Cardiology, Departments of Medicine and Diagnostic Radiology, Mc-Gill University Health Centre, Montreal, Canada
| | - Uta Merle
- Department of Gastroenterology, Heidelberg University Hospital, Heidelberg, Germany
| | - Karl Heinz Weiss
- Department of Gastroenterology, Heidelberg University Hospital, Heidelberg, Germany
- Department of Internal Medicine, Salem Medical Center, Heidelberg, Germany
| | - Hugo A Katus
- Department of Cardiology, Angiology and Pneumology, Heidelberg University Hospital, Heidelberg, Germany
- DZHK (German Centre for Cardiovascular Research), Partner site Heidelberg, Heidelberg, Germany
| | - Marco Ochs
- Department of Cardiology, Angiology and Pneumology, Heidelberg University Hospital, Heidelberg, Germany
- DZHK (German Centre for Cardiovascular Research), Partner site Heidelberg, Heidelberg, Germany
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Left Ventricle Phenotyping Utilizing Tissue Doppler Imaging in Premature Infants with Varying Severity of Bronchopulmonary Dysplasia. J Clin Med 2021; 10:jcm10102211. [PMID: 34065264 PMCID: PMC8160781 DOI: 10.3390/jcm10102211] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/10/2021] [Accepted: 05/14/2021] [Indexed: 12/16/2022] Open
Abstract
Bronchopulmonary dysplasia (BPD) is characterized by alveolar-capillary simplification and is associated with pulmonary hypertension (PH) in preterm infants. The contribution of left ventricle (LV) disease towards this severe BPD-PH phenotype is not well established. We aimed to describe the longitudinal trajectory of the LV function as measured by tissue Doppler imaging (TDI) and its association with BPD-PH. We retrospectively assessed prospectively acquired clinical and echocardiographic data from 77 preterm infants born between 2011 and 2013. We characterized the LV function by measuring systolic and diastolic myocardial velocities (s’, e’, a’), isovolumetric relaxation time (IVRT), and myocardial performance index with TDI at three time periods from 32 and 36 weeks, postmenstrual age through one year of age. We also measured post systolic motion (PSM), a marker of myocardial dysfunction that results from asynchronous movement of the ventricular walls, and not previously described in preterm infants. Patients were stratified into groups according to BPD severity and the presence of PH and compared over time. Conventional TDI measures of the LV function were similar between groups, but the septal PSM was significantly prolonged over the first year of age in patients with BPD-PH. PSM provides a novel objective way to assess the hemodynamic impact of lung and pulmonary vascular disease severity on LV function in preterm infants with BPD and PH.
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48
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Elshafey WEH, Al Khoufi EA, Elmelegy EK. Effects of Sacubitril/Valsartan Treatment on Left Ventricular Myocardial Torsion Mechanics in Patients with Heart Failure Reduced Ejection Fraction 2D Speckle Tracking Echocardiography. J Cardiovasc Echogr 2021; 31:59-67. [PMID: 34485030 PMCID: PMC8388327 DOI: 10.4103/jcecho.jcecho_118_20] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Accepted: 02/11/2021] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Left ventricular ejection fraction (LVEF) is calculated from volumetric change without representing true myocardial properties. Strain echocardiography has been used to objectively measure myocardial deformation. Myocardial strain can give accurate information about intrinsic myocardial function, and it can be used to detect early-stage cardiovascular diseases, monitor myocardial changes with specific therapies, differentiate cardiomyopathies, and predict the prognosis of several cardiovascular diseases. Sacubitril/valsartan has been shown to improve mortality and reduce hospitalizations in patients with heart failure with reduced ejection fraction (HFrEF). The effect of sacubitril/valsartan angiotensin receptor neprilysin inhibitor (ARNI) on left ventricular (LV) ejection fraction (EF) and torsion dynamics in HFrEF patients has not been previously described. METHODS The study involved 73 patients with HFrEF, for all patients Full history was taken, full clinical examination was done. Baseline vital signs, ECG, NYHA classification, conventional echocardiography and STE were done at baseline study and after 6 and 11 months.Basal and apical LV short-axis images were acquired for further off-line analysis. Using commercially available two-dimensional strain software, apical, basal rotation, and LV torsion were calculated. RESULTS ARNI group of patients showed improvement of symptoms, LV global longitudinal strain (LVGLS)% and diastolic parameters including, E/A, E/e', TV, untwist onset and rate after 6 months of therapy in comparison to the traditionally treated patients. The improvement continued for 11 months with in additional significant improvement of systolic parameters in the form of LVGLS%, EF%, Twist, Apical and basal rotations, main dependent parameters for improvement of EF% was LVGLS% and Apical rotation. CONCLUSION To the best of our knowledge, this is the first study to demonstrate that therapy with sacubitril/valsartan in HFrEF patients could create a state of gradual and chronic LV deloading which cause relieving of myocardial wall tensions and decreasing the LV end diastolic pressure this state could cause cardiac reverse remodeling and reestablishment of starling forces proprieties of LV myocardium, which lead to increase of LV EF.
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Affiliation(s)
- Wassam Eldin Hadad Elshafey
- Cardiology Department, Faculty of Medicine, Menoufia University, Menoufia University Hospital, Shebein El Koom, Egypt
| | - Emad Ali Al Khoufi
- Department of Internal Medicine, College of Medicine, King Faisal University, Al-Ahsa, Saudi Arabia
| | - Ehab Kamal Elmelegy
- Cardiology Department, Shebein EL Koom Teaching Hospital, Shebein El Koom, Egypt
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49
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Shibata S, Hirabuki K, Hata N, Suzuki R, Suda T, Uechi T, Hirasawa A. Pivotal Role of Heart for Orthostasis: Left Ventricular Untwisting Mechanics and Physical Fitness. Exerc Sport Sci Rev 2021; 49:88-98. [PMID: 33720910 DOI: 10.1249/jes.0000000000000247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Augmentation of left ventricular (LV) untwisting due to central hypovolemia is likely to be a compensatory mechanism for maintaining stroke volume, which is reduced by a decrease in cardiac filling during orthostatic stress. Orthostatic intolerance observed in both high and low fitness levels may be explained by the impaired response of LV untwisting due to central hypovolemia.
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Affiliation(s)
| | | | | | - Rina Suzuki
- Emergency Department, Kyorin University Hospital
| | - Tomoya Suda
- Emergency Department, Kyorin University Hospital
| | | | - Ai Hirasawa
- Department of Health and Welfare, Faculty of Health Sciences, Kyorin University, Tokyo, Japan
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50
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Mora V, Roldán I, Bertolín J, Faga V, Pérez-Gil MDM, Saad A, Serrats R, Callizo R, Arbucci R, Lowenstein J. Influence of Ventricular Wringing on the Preservation of Left Ventricular Ejection Fraction in Cardiac Amyloidosis. J Am Soc Echocardiogr 2021; 34:767-774. [PMID: 33744403 DOI: 10.1016/j.echo.2021.02.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Revised: 12/03/2020] [Accepted: 02/22/2021] [Indexed: 10/21/2022]
Abstract
BACKGROUND The purpose of this work was to determine the influence of myocardial wringing on ventricular function in patients with cardiac amyloidosis (CA). METHODS Fifteen healthy volunteers (group 1) and 34 patients with CA (17 with left ventricular ejection fractions [LVEFs] ≥ 53% [group 2] and 17 with LVEFs < 53% [group 3]) were evaluated using two-dimensional speckle-tracking echocardiography. A control group of mass-matched patients (n = 20) with left ventricular (LV) hypertrophy and LVEFs ≥ 53% was also included. Longitudinal strain (LS), circumferential strain, and LV twist and torsion were calculated. Deformation index (DefI), a new parameter of wringing, calculated as twist/LS, that takes into account actions that occur simultaneously during LV systole (i.e., longitudinal shortening and twist), was evaluated. Torsional and wringing parameters were calculated according to LVEF. RESULTS Lower global values of LS and circumferential strain were observed among patients with CA (LS: group 1, -20.6 ± 2.5%; group 2, -11.6 ± 4.1%; group 3, -9.0 ± 3.1%; circumferential strain: group 1, -22.7 ± 4.9%; group 2, -14.4 ± 8.0%; group 3, -13.6 ± 3.8%; P < .001 for both). Torsion did not vary between group 2 and group 1 (2.5 ± 1.1°/cm vs 2.7 ± 0.8°/cm, P = NS). In contrast, DefI was greater in group 2 than in group 1 (-1.8 ± 0.8°/% vs -1.0 ± 0.3°/%, P < .01). Torsion and DefI were lower in group 3 (1.2 ± 0.7°/cm and -1.1 ± 0.6°/%, respectively, P < .001 for both) than in group 2. DefI was similar in patients with LV hypertrophy (-1.7 ± 0.6°/%, P = NS) and group 2. CONCLUSIONS In patients with CA, preservation of LVEF depends on greater ventricular wringing. DefI, a parameter that integrates the twist and the simultaneous longitudinal shortening of the left ventricle, is a more accurate indicator of the efficacy of this mechanism.
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Affiliation(s)
- Vicente Mora
- Department of Cardiology, Hospital Universitario Dr. Peset, Valencia, Spain.
| | - Ildefonso Roldán
- Department of Cardiology, Hospital Universitario Dr. Peset, Valencia, Spain
| | - Javier Bertolín
- Department of Cardiology, Hospital Universitario Dr. Peset, Valencia, Spain
| | - Valentina Faga
- Department of Cardiology, Hospital Universitario Dr. Peset, Valencia, Spain
| | | | - Ariel Saad
- Cardiodiagnosis Department, Medical Research, Buenos Aires, Argentina
| | - Rocío Serrats
- Department of Cardiology, Hospital Universitario Dr. Peset, Valencia, Spain
| | - Ricardo Callizo
- Department of Cardiology, Hospital Universitario Dr. Peset, Valencia, Spain
| | - Rosina Arbucci
- Cardiodiagnosis Department, Medical Research, Buenos Aires, Argentina
| | - Jorge Lowenstein
- Cardiodiagnosis Department, Medical Research, Buenos Aires, Argentina
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