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Lazăr MA, Ionac I, Luca CT, Petrescu L, Vacarescu C, Crisan S, Gaiță D, Cozma D, Sosdean R, Arnăutu DA, Cozlac AR, Luca SA, Gurgu A, Totorean C, Mornos C. Reduced Left Ventricular Twist Early after Acute ST-Segment Elevation Myocardial Infarction as a Predictor of Left Ventricular Adverse Remodelling. Diagnostics (Basel) 2023; 13:2896. [PMID: 37761263 PMCID: PMC10528752 DOI: 10.3390/diagnostics13182896] [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: 08/10/2023] [Revised: 09/04/2023] [Accepted: 09/07/2023] [Indexed: 09/29/2023] Open
Abstract
BACKGROUND The left ventricular (LV) remodelling process represents the main cause of heart failure after a ST-segment elevation myocardial infarction (STEMI). Speckle-tracking echocardiography (STE) can detect early deformation impairment, while also predicting LV remodelling during follow-up. The aim of this study was to investigate the STE parameters in predicting cardiac remodelling following a percutaneous coronary intervention (PCI) in STEMI patients. METHODS The study population consisted of 60 patients with acute STEMI and no history of prior myocardial infarction treated with PCI. The patients were assessed both by conventional transthoracic and ST echocardiography in the first 12 h after admission and 6 months after the acute phase. Adverse remodelling was defined as an increase in LVEDV and/or LVESV by 15%. RESULTS Adverse remodelling occurred in 26 patients (43.33%). By multivariate regression equation, the risk of adverse remodelling increases with age (by 1.1-fold), triglyceride level (by 1.009-fold), and midmyocardial radial strain (mid-RS) (1.06-fold). Increased initial twist decreases the chances of adverse remodelling (0.847-fold). The LV twist presented the largest area under the receiver operating characteristic (ROC) curve to predict adverse remodelling (AUROC = 0.648; 95% CI [0.506;0.789], p = 0.04). A twist value higher than 11° has a 76.9% specificity and a 72.7% positive predictive value for reverse remodelling at 6 months.
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Affiliation(s)
- Mihai-Andrei Lazăr
- Cardiology Department, “Victor Babes” University of Medicine and Pharmacy, 2 Eftimie Murgu Sq., 300041 Timisoara, Romania; (M.-A.L.); (L.P.); (C.V.); (S.C.); (D.G.); (D.C.); (R.S.); (A.-R.C.); (S.-A.L.); (A.G.); (C.T.); (C.M.)
- Institute of Cardiovascular Diseases Timisoara, 13A Gheorghe Adam Street, 300310 Timisoara, Romania;
- Research Center of the Institute of Cardiovascular Diseases Timisoara, 13A Gheorghe Adam Street, 300310 Timisoara, Romania
| | - Ioana Ionac
- Institute of Cardiovascular Diseases Timisoara, 13A Gheorghe Adam Street, 300310 Timisoara, Romania;
| | - Constantin-Tudor Luca
- Cardiology Department, “Victor Babes” University of Medicine and Pharmacy, 2 Eftimie Murgu Sq., 300041 Timisoara, Romania; (M.-A.L.); (L.P.); (C.V.); (S.C.); (D.G.); (D.C.); (R.S.); (A.-R.C.); (S.-A.L.); (A.G.); (C.T.); (C.M.)
- Institute of Cardiovascular Diseases Timisoara, 13A Gheorghe Adam Street, 300310 Timisoara, Romania;
- Research Center of the Institute of Cardiovascular Diseases Timisoara, 13A Gheorghe Adam Street, 300310 Timisoara, Romania
| | - Lucian Petrescu
- Cardiology Department, “Victor Babes” University of Medicine and Pharmacy, 2 Eftimie Murgu Sq., 300041 Timisoara, Romania; (M.-A.L.); (L.P.); (C.V.); (S.C.); (D.G.); (D.C.); (R.S.); (A.-R.C.); (S.-A.L.); (A.G.); (C.T.); (C.M.)
| | - Cristina Vacarescu
- Cardiology Department, “Victor Babes” University of Medicine and Pharmacy, 2 Eftimie Murgu Sq., 300041 Timisoara, Romania; (M.-A.L.); (L.P.); (C.V.); (S.C.); (D.G.); (D.C.); (R.S.); (A.-R.C.); (S.-A.L.); (A.G.); (C.T.); (C.M.)
- Institute of Cardiovascular Diseases Timisoara, 13A Gheorghe Adam Street, 300310 Timisoara, Romania;
- Research Center of the Institute of Cardiovascular Diseases Timisoara, 13A Gheorghe Adam Street, 300310 Timisoara, Romania
| | - Simina Crisan
- Cardiology Department, “Victor Babes” University of Medicine and Pharmacy, 2 Eftimie Murgu Sq., 300041 Timisoara, Romania; (M.-A.L.); (L.P.); (C.V.); (S.C.); (D.G.); (D.C.); (R.S.); (A.-R.C.); (S.-A.L.); (A.G.); (C.T.); (C.M.)
- Institute of Cardiovascular Diseases Timisoara, 13A Gheorghe Adam Street, 300310 Timisoara, Romania;
- Research Center of the Institute of Cardiovascular Diseases Timisoara, 13A Gheorghe Adam Street, 300310 Timisoara, Romania
| | - Dan Gaiță
- Cardiology Department, “Victor Babes” University of Medicine and Pharmacy, 2 Eftimie Murgu Sq., 300041 Timisoara, Romania; (M.-A.L.); (L.P.); (C.V.); (S.C.); (D.G.); (D.C.); (R.S.); (A.-R.C.); (S.-A.L.); (A.G.); (C.T.); (C.M.)
- Institute of Cardiovascular Diseases Timisoara, 13A Gheorghe Adam Street, 300310 Timisoara, Romania;
- Research Center of the Institute of Cardiovascular Diseases Timisoara, 13A Gheorghe Adam Street, 300310 Timisoara, Romania
| | - Dragos Cozma
- Cardiology Department, “Victor Babes” University of Medicine and Pharmacy, 2 Eftimie Murgu Sq., 300041 Timisoara, Romania; (M.-A.L.); (L.P.); (C.V.); (S.C.); (D.G.); (D.C.); (R.S.); (A.-R.C.); (S.-A.L.); (A.G.); (C.T.); (C.M.)
- Institute of Cardiovascular Diseases Timisoara, 13A Gheorghe Adam Street, 300310 Timisoara, Romania;
- Research Center of the Institute of Cardiovascular Diseases Timisoara, 13A Gheorghe Adam Street, 300310 Timisoara, Romania
| | - Raluca Sosdean
- Cardiology Department, “Victor Babes” University of Medicine and Pharmacy, 2 Eftimie Murgu Sq., 300041 Timisoara, Romania; (M.-A.L.); (L.P.); (C.V.); (S.C.); (D.G.); (D.C.); (R.S.); (A.-R.C.); (S.-A.L.); (A.G.); (C.T.); (C.M.)
- Institute of Cardiovascular Diseases Timisoara, 13A Gheorghe Adam Street, 300310 Timisoara, Romania;
- Research Center of the Institute of Cardiovascular Diseases Timisoara, 13A Gheorghe Adam Street, 300310 Timisoara, Romania
| | - Diana-Aurora Arnăutu
- Institute of Cardiovascular Diseases Timisoara, 13A Gheorghe Adam Street, 300310 Timisoara, Romania;
| | - Alina-Ramona Cozlac
- Cardiology Department, “Victor Babes” University of Medicine and Pharmacy, 2 Eftimie Murgu Sq., 300041 Timisoara, Romania; (M.-A.L.); (L.P.); (C.V.); (S.C.); (D.G.); (D.C.); (R.S.); (A.-R.C.); (S.-A.L.); (A.G.); (C.T.); (C.M.)
| | - Slivia-Ana Luca
- Cardiology Department, “Victor Babes” University of Medicine and Pharmacy, 2 Eftimie Murgu Sq., 300041 Timisoara, Romania; (M.-A.L.); (L.P.); (C.V.); (S.C.); (D.G.); (D.C.); (R.S.); (A.-R.C.); (S.-A.L.); (A.G.); (C.T.); (C.M.)
- Institute of Cardiovascular Diseases Timisoara, 13A Gheorghe Adam Street, 300310 Timisoara, Romania;
- Research Center of the Institute of Cardiovascular Diseases Timisoara, 13A Gheorghe Adam Street, 300310 Timisoara, Romania
| | - Andra Gurgu
- Cardiology Department, “Victor Babes” University of Medicine and Pharmacy, 2 Eftimie Murgu Sq., 300041 Timisoara, Romania; (M.-A.L.); (L.P.); (C.V.); (S.C.); (D.G.); (D.C.); (R.S.); (A.-R.C.); (S.-A.L.); (A.G.); (C.T.); (C.M.)
| | - Claudia Totorean
- Cardiology Department, “Victor Babes” University of Medicine and Pharmacy, 2 Eftimie Murgu Sq., 300041 Timisoara, Romania; (M.-A.L.); (L.P.); (C.V.); (S.C.); (D.G.); (D.C.); (R.S.); (A.-R.C.); (S.-A.L.); (A.G.); (C.T.); (C.M.)
- Institute of Cardiovascular Diseases Timisoara, 13A Gheorghe Adam Street, 300310 Timisoara, Romania;
- Research Center of the Institute of Cardiovascular Diseases Timisoara, 13A Gheorghe Adam Street, 300310 Timisoara, Romania
| | - Cristian Mornos
- Cardiology Department, “Victor Babes” University of Medicine and Pharmacy, 2 Eftimie Murgu Sq., 300041 Timisoara, Romania; (M.-A.L.); (L.P.); (C.V.); (S.C.); (D.G.); (D.C.); (R.S.); (A.-R.C.); (S.-A.L.); (A.G.); (C.T.); (C.M.)
- Institute of Cardiovascular Diseases Timisoara, 13A Gheorghe Adam Street, 300310 Timisoara, Romania;
- Research Center of the Institute of Cardiovascular Diseases Timisoara, 13A Gheorghe Adam Street, 300310 Timisoara, Romania
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Trifunović-Zamaklar D, Jovanović I, Vratonjić J, Petrović O, Paunović I, Tešić M, Boričić-Kostić M, Ivanović B. The basic heart anatomy and physiology from the cardiologist's perspective: Toward a better understanding of left ventricular mechanics, systolic, and diastolic function. JOURNAL OF CLINICAL ULTRASOUND : JCU 2022; 50:1026-1040. [PMID: 36218206 DOI: 10.1002/jcu.23316] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Revised: 08/23/2022] [Accepted: 08/24/2022] [Indexed: 06/16/2023]
Abstract
A comprehensive understanding of the cardiac structure-function relationship is essential for proper clinical cardiac imaging. This review summarizes the basic heart anatomy and physiology from the perspective of a heart imager focused on myocardial mechanics. The main issues analyzed are the left ventricular (LV) architecture, the LV myocardial deformation through the cardiac cycle, the LV diastolic function basic parameters and the basic parameters of the LV deformation used in clinical practice for the LV function assessment.
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Affiliation(s)
- Danijela Trifunović-Zamaklar
- Clinic for Cardiology, University Clinical Center of Serbia, Belgrade, Serbia
- School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Ivana Jovanović
- Clinic for Cardiology, University Clinical Center of Serbia, Belgrade, Serbia
| | - Jelena Vratonjić
- Clinic for Cardiology, University Clinical Center of Serbia, Belgrade, Serbia
| | - Olga Petrović
- Clinic for Cardiology, University Clinical Center of Serbia, Belgrade, Serbia
- School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Ivana Paunović
- Clinic for Cardiology, University Clinical Center of Serbia, Belgrade, Serbia
| | - Milorad Tešić
- Clinic for Cardiology, University Clinical Center of Serbia, Belgrade, Serbia
- School of Medicine, University of Belgrade, Belgrade, Serbia
| | | | - Branislava Ivanović
- Clinic for Cardiology, University Clinical Center of Serbia, Belgrade, Serbia
- School of Medicine, University of Belgrade, Belgrade, Serbia
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Ibrahim ESH, Dennison J, Frank L, Stojanovska J. Diastolic Cardiac Function by MRI-Imaging Capabilities and Clinical Applications. Tomography 2021; 7:893-914. [PMID: 34941647 PMCID: PMC8706325 DOI: 10.3390/tomography7040075] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 12/01/2021] [Accepted: 12/04/2021] [Indexed: 02/05/2023] Open
Abstract
Most cardiac studies focus on evaluating left ventricular (LV) systolic function. However, the assessment of diastolic cardiac function is becoming more appreciated, especially with the increasing prevalence of pathologies associated with diastolic dysfunction like heart failure with preserved ejection fraction (HFpEF). Diastolic dysfunction is an indication of abnormal mechanical properties of the myocardium, characterized by slow or delayed myocardial relaxation, abnormal LV distensibility, and/or impaired LV filling. Diastolic dysfunction has been shown to be associated with age and other cardiovascular risk factors such as hypertension and diabetes mellitus. In this context, cardiac magnetic resonance imaging (MRI) has the capability for differentiating between normal and abnormal myocardial relaxation patterns, and therefore offers the prospect of early detection of diastolic dysfunction. Although diastolic cardiac function can be assessed from the ratio between early and atrial filling peaks (E/A ratio), measuring different parameters of heart contractility during diastole allows for evaluating spatial and temporal patterns of cardiac function with the potential for illustrating subtle changes related to age, gender, or other differences among different patient populations. In this article, we review different MRI techniques for evaluating diastolic function along with clinical applications and findings in different heart diseases.
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Affiliation(s)
- El-Sayed H. Ibrahim
- Department of Radiology, Medical College of Wisconsin, Milwaukee, WI 53226, USA;
- Correspondence:
| | - Jennifer Dennison
- Department of Medicine, Medical College of Wisconsin, Wausau, WI 54401, USA;
| | - Luba Frank
- Department of Radiology, Medical College of Wisconsin, Milwaukee, WI 53226, USA;
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Pastore MC, Mandoli GE, Contorni F, Cavigli L, Focardi M, D'Ascenzi F, Patti G, Mondillo S, Cameli M. Speckle Tracking Echocardiography: Early Predictor of Diagnosis and Prognosis in Coronary Artery Disease. BIOMED RESEARCH INTERNATIONAL 2021; 2021:6685378. [PMID: 33623788 PMCID: PMC7875622 DOI: 10.1155/2021/6685378] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 12/12/2020] [Accepted: 01/23/2021] [Indexed: 01/24/2023]
Abstract
Echocardiography represents a first level technique for the evaluation of coronary artery disease (CAD) which supports clinicians in the diagnostic and prognostic workup of these syndromes. However, visual estimation of wall motion abnormalities sometimes fails in detecting less clear or transient myocardial ischemia and in providing accurate differential diagnosis. Speckle tracking echocardiography (STE) is a widely available noninvasive tool that could easily and quickly provide additive information over basic echocardiography, since it is able to identify subtle myocardial damage and to localize ischemic territories in accordance to the coronary lesions, obtaining a clear visualization with a "polar map" useful for differential diagnosis and management. Therefore, it has increasingly been applied in acute and chronic coronary syndromes using rest and stress echocardiography, showing good results in terms of prediction of CAD, clinical outcome, left ventricular remodeling, presence, and quantification of new/residual ischemia. The aim of this review is to illustrate the current available evidence on STE usefulness for the assessment and follow-up of CAD, discussing the main findings on bidimensional and tridimensional strain parameters and their potential application in clinical practice.
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Affiliation(s)
- Maria Concetta Pastore
- Department of Medical Biotechnologies, Division of Cardiology, University of Siena, Italy
- University of Eastern Piedmont, Maggiore della Carità Hospital, Novara, Italy
| | - Giulia Elena Mandoli
- Department of Medical Biotechnologies, Division of Cardiology, University of Siena, Italy
| | - Francesco Contorni
- Department of Medical Biotechnologies, Division of Cardiology, University of Siena, Italy
| | - Luna Cavigli
- Department of Medical Biotechnologies, Division of Cardiology, University of Siena, Italy
| | - Marta Focardi
- Department of Medical Biotechnologies, Division of Cardiology, University of Siena, Italy
| | - Flavio D'Ascenzi
- Department of Medical Biotechnologies, Division of Cardiology, University of Siena, Italy
| | - Giuseppe Patti
- University of Eastern Piedmont, Maggiore della Carità Hospital, Novara, Italy
| | - Sergio Mondillo
- Department of Medical Biotechnologies, Division of Cardiology, University of Siena, Italy
| | - Matteo Cameli
- Department of Medical Biotechnologies, Division of Cardiology, University of Siena, Italy
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5
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Vachalcova M, Valočik G, Kurečko M, Grapsa J, Taha VA, Michalek P, Jankajová M, Sabol F, Kubikova L, Orban M, Uher T, Böhm A. The three-dimensional speckle tracking echocardiography in distinguishing between ischaemic and non-ischaemic aetiology of heart failure. ESC Heart Fail 2020; 7:2297-2304. [PMID: 32558395 PMCID: PMC7524069 DOI: 10.1002/ehf2.12766] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 04/10/2020] [Accepted: 05/07/2020] [Indexed: 11/23/2022] Open
Abstract
Aims The aim of this pilot study was to compare selected three‐dimensional speckle tracking echocardiography (3D STE) parameters in patients with ischaemic and non‐ischaemic aetiology of heart failure (HF) and to identify indices that can differentiate the two pathologies. Methods and results Forty patients with left ventricular ejection fraction (LVEF) ≤ 40% were included to the study: 20 patients (age 63 ± 9.0 years, LVEF 29.0 ± 11.3%) with ischaemic cardiomyopathy and 20 patients (age 64.0 ± 11.0 years, LVEF 27.3 ± 7.5%) with non‐ischaemic cardiomyopathy. All patients underwent two‐dimensional (2D) and three‐dimensional (3D) transthoracic echocardiography. Standard echocardiographic parameters, global longitudinal strain, and rotational parameters of left ventricle (LV) were assessed using 3D speckle tracking (3D STE). There were no differences in standard and STE parameters between the two groups. Among rotational parameters, the LV apical rotation (4.9 ± 3.5° vs. 2.3 ± 2.4°, P = 0.0022) was significantly higher in patients with ischaemic HF. Among all echocardiographic parameters, a cut‐off value of 3.28° (area under the curve 0.78; 95% confidence interval, 0.62 to 0.93) was able to distinguish the ischaemic and non‐ischaemic aetiology of HF with a sensitivity of 80% and specificity of 75%. Conclusions This is the first study that compares 3D STE parameters between patients with ischaemic and non‐ischaemic cardiomyopathy. It was proved that the apical rotation was significantly higher in patients with ischaemic cardiomyopathy. Our findings suggest that 3D STE might be useful in non‐invasive differentiation between ischaemic and non‐ischaemic aetiology of HF.
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Affiliation(s)
- Marianna Vachalcova
- East Slovak Institute of Cardiovascular Diseases, Kosice, Slovakia.,Faculty of Medicine, Pavol Jozef Šafárik University, Kosice, Slovakia
| | - Gabriel Valočik
- East Slovak Institute of Cardiovascular Diseases, Kosice, Slovakia.,Faculty of Medicine, Pavol Jozef Šafárik University, Kosice, Slovakia
| | - Marián Kurečko
- East Slovak Institute of Cardiovascular Diseases, Kosice, Slovakia.,Faculty of Medicine, Pavol Jozef Šafárik University, Kosice, Slovakia
| | - Julia Grapsa
- Cardiology Department, Guys and St Thomas NHS Hospitals, London, UK
| | | | - Peter Michalek
- University Hospital of St. Cyril and Methodius, Bratislava, Slovakia.,Faculty of Medicine, Comenius University, Bratislava, Slovakia
| | - Monika Jankajová
- East Slovak Institute of Cardiovascular Diseases, Kosice, Slovakia.,Faculty of Medicine, Pavol Jozef Šafárik University, Kosice, Slovakia
| | - František Sabol
- East Slovak Institute of Cardiovascular Diseases, Kosice, Slovakia.,Faculty of Medicine, Pavol Jozef Šafárik University, Kosice, Slovakia
| | - Lucia Kubikova
- East Slovak Institute of Cardiovascular Diseases, Kosice, Slovakia.,Faculty of Medicine, Pavol Jozef Šafárik University, Kosice, Slovakia
| | - Marek Orban
- Faculty of Medicine, Comenius University, Bratislava, Slovakia.,National Institute of Cardiovascular Diseases, Bratislava, Slovakia
| | - Tomas Uher
- Academy-Research Organization, Bratislava, Slovakia.,Internal Department, Malacky Hospital, Malacky, Slovakia
| | - Allan Böhm
- National Institute of Cardiovascular Diseases, Bratislava, Slovakia.,Faculty of Medicine, Slovak Medical University, Bratislava, Slovakia.,Academy-Research Organization, Bratislava, Slovakia
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Lin JL, Sung KT, Su CH, Chou TH, Lo CI, Tsai JP, Chang SC, Lai YH, Hu KC, Liu CY, Yun CH, Hung CL, Yeh HI, Lam CSP. Cardiac Structural Remodeling, Longitudinal Systolic Strain, and Torsional Mechanics in Lean and Nonlean Dysglycemic Chinese Adults. Circ Cardiovasc Imaging 2019; 11:e007047. [PMID: 29752393 DOI: 10.1161/circimaging.117.007047] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Accepted: 03/26/2018] [Indexed: 12/15/2022]
Abstract
BACKGROUND Diabetes mellitus and pre-diabetes mellitus are associated with lower body mass indices and increased risk of cardiovascular events (including heart failure) at lower glucose thresholds in Chinese compared with Western cohorts. However, the extent of cardiac remodeling and regulation on cardiac mechanics in lean and nonlean dysglycemic Chinese adults is understudied. METHODS AND RESULTS We studied 3950 asymptomatic Chinese (aged 49.7±10.7 years; 65% male; body mass index: 24.3±3.5 kg/m2) with comprehensive echocardiography including speckle tracking for left ventricular global longitudinal strain/torsion, with plasma sugar, glycosylated hemoglobin (HbA1c), and insulin resistance (homeostasis model assessment of insulin resistance) obtained. Participants were classified as (1) nondiabetic (fasting glucose <100 mg/mL; HbA1c <5.7%; n=1416), prediabetic (fasting glucose 100-126 mg/dL; HbA1c 5.7%-6.4%; n=2029), or diabetic (n=505) and (2) lean (body mass index <23 kg/m2; n=1445) or nonlean (n=2505). Higher sugar, HbA1c, and homeostasis model assessment of insulin resistance were independently associated with higher left ventricular mass, greater mass-to-volume ratio, more impaired diastolic indices, and worse global longitudinal strain even after adjusting for clinical covariates (adjusted coefficient value: 0.28/0.12 for global longitudinal strain per 1 U HbA1c/homeostasis model assessment of insulin resistance increment; both P<0.001), with a consistent trend toward greater torsion (all trend P<0.001). The optimal cutoffs in identifying subclinical systolic dysfunction (global longitudinal strain more impaired than -18%) for lean versus nonlean individuals were 97 versus 106 mg/dL for fasting sugar, 130 versus 135 mg/mL for postprandial sugar, 5.62% versus 6.28% for HbA1c, and 1.81 versus 2.40 for homeostasis model assessment of insulin resistance, respectively. CONCLUSIONS These data demonstrate the presence of preclinical cardiac remodeling and systolic dysfunction in prediabetic and diabetic Chinese adults, occurring at lower thresholds of glycemic indices than defined by international standards, particularly in lean individuals.
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Affiliation(s)
- Jiun-Lu Lin
- Department of Medicine, Mackay Medical College, New Taipei City, Taiwan (J.-L.L., K.-T.S., C.-H.S., C.-I.L., J.-P.T., S.-C.C., C.-L.H.).,Division of Endocrinology and Metabolism, Department of Internal Medicine (J.-L.L.)
| | - Kuo-Tzu Sung
- Department of Medicine, Mackay Medical College, New Taipei City, Taiwan (J.-L.L., K.-T.S., C.-H.S., C.-I.L., J.-P.T., S.-C.C., C.-L.H.).,Division of Cardiology, Department of Internal Medicine (K.-T.S., C.-H.S., C.-I.L., J.-P.T., C.-L.H., H.-I.Y.)
| | - Cheng-Huang Su
- Department of Medicine, Mackay Medical College, New Taipei City, Taiwan (J.-L.L., K.-T.S., C.-H.S., C.-I.L., J.-P.T., S.-C.C., C.-L.H.).,Division of Cardiology, Department of Internal Medicine (K.-T.S., C.-H.S., C.-I.L., J.-P.T., C.-L.H., H.-I.Y.)
| | | | - Chi-In Lo
- Department of Medicine, Mackay Medical College, New Taipei City, Taiwan (J.-L.L., K.-T.S., C.-H.S., C.-I.L., J.-P.T., S.-C.C., C.-L.H.).,Division of Cardiology, Department of Internal Medicine (K.-T.S., C.-H.S., C.-I.L., J.-P.T., C.-L.H., H.-I.Y.)
| | - Jui-Peng Tsai
- Department of Medicine, Mackay Medical College, New Taipei City, Taiwan (J.-L.L., K.-T.S., C.-H.S., C.-I.L., J.-P.T., S.-C.C., C.-L.H.).,Division of Cardiology, Department of Internal Medicine (K.-T.S., C.-H.S., C.-I.L., J.-P.T., C.-L.H., H.-I.Y.)
| | - Shun-Chuan Chang
- Department of Medicine, Mackay Medical College, New Taipei City, Taiwan (J.-L.L., K.-T.S., C.-H.S., C.-I.L., J.-P.T., S.-C.C., C.-L.H.)
| | - Yau-Huei Lai
- MacKay Memorial Hospital, Taipei, Taiwan. Division of Cardiology, Department of Internal Medicine, Hsinchu MacKay Memorial Hospital, Hsinchu City, Taiwan (Y.-H.L.)
| | - Kuang-Chun Hu
- Health Evaluation Center (K.-C.H., C.-Y.L.).,Division of Gastroenterology, Department of Internal Medicine (K.-C.H., C.-Y.L.)
| | - Chia-Yuan Liu
- Health Evaluation Center (K.-C.H., C.-Y.L.).,Division of Gastroenterology, Department of Internal Medicine (K.-C.H., C.-Y.L.)
| | - Chun-Ho Yun
- Health Evaluation Center (K.-C.H., C.-Y.L.).,and Department of Radiology (C.-H.Y.)
| | - Chung-Lieh Hung
- Department of Medicine, Mackay Medical College, New Taipei City, Taiwan (J.-L.L., K.-T.S., C.-H.S., C.-I.L., J.-P.T., S.-C.C., C.-L.H.). .,Division of Cardiology, Department of Internal Medicine (K.-T.S., C.-H.S., C.-I.L., J.-P.T., C.-L.H., H.-I.Y.).,Institute of Clinical Medicine (C.-L.H.).,and Cardiovascular Research Center (C.-L.H.)
| | - Hung-I Yeh
- Division of Cardiology, Department of Internal Medicine (K.-T.S., C.-H.S., C.-I.L., J.-P.T., C.-L.H., H.-I.Y.)
| | - Carolyn S P Lam
- National Yang-Ming University, Taipei, Taiwan. National Heart Centre Singapore (C.S.P.L.).,Duke-National University of Singapore (C.S.P.L.)
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Hristova K. Recovery of left ventricular twist and left ventricular untwist rate in patients with ST-segment elevation acute myocardial infarction. JOURNAL OF THE INDIAN ACADEMY OF ECHOCARDIOGRAPHY & CARDIOVASCULAR IMAGING 2019. [DOI: 10.4103/jiae.jiae_34_19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Yoneyama K, Venkatesh BA, Wu CO, Mewton N, Gjesdal O, Kishi S, McClelland RL, Bluemke DA, Lima JAC. Diabetes mellitus and insulin resistance associate with left ventricular shape and torsion by cardiovascular magnetic resonance imaging in asymptomatic individuals from the multi-ethnic study of atherosclerosis. J Cardiovasc Magn Reson 2018; 20:53. [PMID: 30064457 PMCID: PMC6069876 DOI: 10.1186/s12968-018-0472-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Accepted: 06/20/2018] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Although diabetes mellitus (DM) and insulin resistance associate with adverse cardiac events, the associations of left ventricular (LV) remodeling and function with compromised glucose metabolism have not been fully evaluated in a general population. We used cardiovascular magnetic resonance (CMR) to evaluate how CMR indices are associated with DM or insulin resistance among participants before developing cardiac events. METHODS We studied 1476 participants who were free of clinical cardiovascular disease and who underwent tagged CMR in the Multi-Ethnic Study of Atherosclerosis (MESA). LV shape and longitudinal myocardial shortening and torsion were assessed by CMR. A higher sphericity index represents a more spherical LV shape. Multivariable linear regression was used to evaluate the associations of DM or homeostasis model assessment-estimated insulin resistance (HOMA-IR) with CMR indices. RESULTS In multiple linear regression, longitudinal shortening was lower in impaired fasting glucose than normal fasting glucose (NFG) (0.36% lower vs. NFG, p < 0.05); torsion was greater in treated DM (0.24 °/cm greater vs. NFG, p < 0.05) after full adjustments. Among participants without DM, greater log-HOMA-IR was correlated with greater LV mass (3.92 g/index, p < 0.05) and LV mass-to-volume ratio (0.05 /index, p < 0.01), and lower sphericity index (- 1.26/index, p < 0.01). Greater log-HOMA IR was associated with lower longitudinal shortening (- 0.26%/index, p < 0.05) and circumferential shortening (- 0.30%/index, p < 0.05). Torsion was positively correlated with log-HOMA-IR until 1.5 of log-HOMA-IR (0.16 °/cm/index, p = 0.030).), and tended to fall once above 1.5 of log-HOMA-IR (- 0.50 °/cm/index, p = 0.203). The sphericity index was associated negatively with LV mass-to-volume ratio (- 0.02/%, p < 0.001) and torsion (- 0.03°/cm/%, p < 0.001). CONCLUSIONS Glucose metabolism disorders are associated with LV concentric remodeling, less spherical shape, and reduced systolic myocardial shortening in the general population. Although torsion is higher in participants who are treated for DM and impaired insulin resistance, myocardial shortening was progressively decreased with higher HOMA-IR and torsion was increased only with less severe insulin resistance. CLINICAL TRIAL REGISTRATION Multi-Ethnic Study of Atherosclerosis (MESA): A full list of participating MESA investigators and institutions can be found at http://www.mesa-nhlbi.org/ . Study Start Date: January 1999 ( NCT00005487 ).
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Affiliation(s)
- Kihei Yoneyama
- Department of Cardiology, Johns Hopkins University, Baltimore, MD USA
- St. Marianna University School of Medicine, Kawasaki, Japan
| | | | - Colin O. Wu
- Offices of Biostatistics Research, National Heart, Lung, and Blood Institute, Bethesda, MD USA
| | - Nathan Mewton
- Department of Cardiology, Johns Hopkins University, Baltimore, MD USA
| | - Ola Gjesdal
- Department of Cardiology, Johns Hopkins University, Baltimore, MD USA
| | - Satoru Kishi
- Department of Cardiology, Johns Hopkins University, Baltimore, MD USA
| | | | - David A. Bluemke
- National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health Clinical Center, Bethesda, MD USA
| | - João A. C. Lima
- Department of Cardiology, Johns Hopkins University, Baltimore, MD USA
- Radiology and Epidemiology, Johns Hopkins University, Blalock 524D1, Johns Hopkins Hospital, 600 North Wolfe Street, Baltimore, MD 21287 USA
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9
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What Is the Heart? Anatomy, Function, Pathophysiology, and Misconceptions. J Cardiovasc Dev Dis 2018; 5:jcdd5020033. [PMID: 29867011 PMCID: PMC6023278 DOI: 10.3390/jcdd5020033] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Revised: 05/10/2018] [Accepted: 05/23/2018] [Indexed: 01/08/2023] Open
Abstract
Cardiac dynamics are traditionally linked to a left ventricle, right ventricle, and septum morphology, a topography that differs from the heart's five-century-old anatomic description of containing a helix and circumferential wrap architectural configuration. Torrent Guasp's helical ventricular myocardial band (HVMB) defines this anatomy and its structure, and explains why the heart's six dynamic actions of narrowing, shortening, lengthening, widening, twisting, and uncoiling happen. The described structural findings will raise questions about deductions guiding "accepted cardiac mechanics", and their functional aspects will challenge and overturn them. These suppositions include the LV, RV, and septum description, timing of mitral valve opening, isovolumic relaxation period, reasons for torsion/twisting, untwisting, reasons for longitudinal and circumferential strain, echocardiographic sub segmentation, resynchronization, RV function dynamics, diastolic dysfunction's cause, and unrecognized septum impairment. Torrent Guasp's revolutionary contributions may alter future understanding of the diagnosis and treatment of cardiac disease.
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10
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Goya S, Wada T, Shimada K, Hirao D, Tanaka R. The relationship between systolic vector flow mapping parameters and left ventricular cardiac function in healthy dogs. Heart Vessels 2017; 33:549-560. [PMID: 29230570 DOI: 10.1007/s00380-017-1093-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Accepted: 12/01/2017] [Indexed: 11/24/2022]
Abstract
Vector flow mapping (VFM) is a novel echocardiographic technology that shows blood flow vectors and vortexes, enabled the hydrokinetic evaluation of hemodynamics within the left ventricle. VFM provides several unique parameters: circulation, vorticity, vortex area, and energy loss. The present study aims to reveal a relationship between VFM parameters and cardiac function. Five healthy Beagle dogs were anesthetized and administered with dobutamine (0, 2, 4, 8, 12 µg/kg/min). Pressure-volume diagrams were acquired to assess cardiac function using pressure-volume conductance catheter. Systolic maximum circulation, vorticity, vortex area, and energy loss were measured using VFM. The systolic maximum circulation, systolic vorticity, systolic vortex area, and systolic energy loss were increased by dobutamine administration. There was a strongly significant correlation between the systolic maximum circulation and ejection fraction (r = 0.76), maximal positive left ventricular (LV) pressure derivatives (dP/dt max) (r = 0.80), and end-systolic LV elastance (r = 0.73). Systolic vorticity and systolic vortex area were strongly correlated with ejection fraction (r = 0.76, 0.68) and dP/dt max (r = 0.76, 0.69), and end-systolic LV elastance (r = 0.62, 0.74), respectively. Systolic energy loss was strongly correlated with dP/dt max (r = 0.78), systolic maximum circulation (r = 0.81), and systolic vorticity (r = 0.82). The present study revealed that systolic VFM parameters are associated with the LV contractility. Furthermore, systolic energy loss was susceptible to the systolic vortex parameters such as systolic vorticity and systolic maximum circulation. Systolic VFM parameters are new hydrokinetic indices reflecting LV contractility.
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Affiliation(s)
- Seijirow Goya
- Department of Veterinary Surgery, Faculty of Veterinary Medicine, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo, 183-8509, Japan.
| | - Tomoki Wada
- Department of Veterinary Surgery, Faculty of Veterinary Medicine, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo, 183-8509, Japan
| | - Kazumi Shimada
- Department of Veterinary Surgery, Faculty of Veterinary Medicine, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo, 183-8509, Japan
| | - Daiki Hirao
- Department of Veterinary Surgery, Faculty of Veterinary Medicine, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo, 183-8509, Japan
| | - Ryou Tanaka
- Department of Veterinary Surgery, Faculty of Veterinary Medicine, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo, 183-8509, Japan
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11
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Hung CL, Gonçalves A, Shah AM, Cheng S, Kitzman D, Solomon SD. Age- and Sex-Related Influences on Left Ventricular Mechanics in Elderly Individuals Free of Prevalent Heart Failure: The ARIC Study (Atherosclerosis Risk in Communities). Circ Cardiovasc Imaging 2017; 10:CIRCIMAGING.116.004510. [PMID: 28093411 DOI: 10.1161/circimaging.116.004510] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Accepted: 10/18/2016] [Indexed: 01/05/2023]
Abstract
BACKGROUND Advanced age is related to left ventricular (LV) remodeling. We sought to investigate the relationships between aging, elevated hemodynamic load, cardiac mechanics, and LV remodeling in an elderly community-based population. METHODS AND RESULTS We studied 1105 subjects (76±5 years, 61% women) without prevalent heart failure, who attended the visit 5 of the ARIC study (Atherosclerosis Risk in Communities). LV global longitudinal strain, global circumferential strain, and torsion indices were analyzed using 3-dimensional echocardiography. Advanced age was associated with greater LV concentricity, lower myocardial diastolic relaxation, reduced global longitudinal strain (adjusted estimate, 0.39±0.19% (SE)/decade; P=0.038), borderline greater global circumferential strain (adjusted estimate, -0.59±0.36% (SE)/decade; P=0.08), and higher torsion indices (adjusted estimate for torsion, 0.33±0.04° (SE)/decade; P<0.001). In addition, greater concentricity was associated with decreased global longitudinal strain and greater torsion in multivariable models (all P<0.001). Women showed smaller LV cavity size, greater concentricity, lower myocardial relaxation velocity E', though demonstrated greater global longitudinal strain, global circumferential strain, and torsion than men (all P<0.05). Overall, subjects with hypertension and increasing age were more likely to have higher torsion, though the association between advanced age and greater torsion was more pronounced in women than in men (both interaction P<0.05). CONCLUSIONS In an asymptomatic, senescent community-dwelling population, we observed a distinct, sex-specific pattern of cardiac remodeling. Although we observed worse diastolic and longitudinal function with advanced age or elevated load in both sexes, a significant increase of torsion was more pronounced in women.
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Affiliation(s)
- Chung-Lieh Hung
- From the Department of Medicine, MacKay Medical College, New Taipei City 252, Taiwan (C.-L.H.); Cardiovascular Division, Brigham and Women's Hospital, Boston, MA (C.-L.H., A.G., A.M.S., S.C., S.D.S.); Division of Cardiology, Departments of Internal Medicine, Mackay Memorial Hospital, Taipei, Taiwan (C.-L.H.); Department of Physiology, University of Porto Medical School, Portugal (A.G.); and Section of Cardiology, Wake Forest School of Medicine, Winston-Salem, NC (D.K.)
| | - Alexandra Gonçalves
- From the Department of Medicine, MacKay Medical College, New Taipei City 252, Taiwan (C.-L.H.); Cardiovascular Division, Brigham and Women's Hospital, Boston, MA (C.-L.H., A.G., A.M.S., S.C., S.D.S.); Division of Cardiology, Departments of Internal Medicine, Mackay Memorial Hospital, Taipei, Taiwan (C.-L.H.); Department of Physiology, University of Porto Medical School, Portugal (A.G.); and Section of Cardiology, Wake Forest School of Medicine, Winston-Salem, NC (D.K.)
| | - Amil M Shah
- From the Department of Medicine, MacKay Medical College, New Taipei City 252, Taiwan (C.-L.H.); Cardiovascular Division, Brigham and Women's Hospital, Boston, MA (C.-L.H., A.G., A.M.S., S.C., S.D.S.); Division of Cardiology, Departments of Internal Medicine, Mackay Memorial Hospital, Taipei, Taiwan (C.-L.H.); Department of Physiology, University of Porto Medical School, Portugal (A.G.); and Section of Cardiology, Wake Forest School of Medicine, Winston-Salem, NC (D.K.)
| | - Susan Cheng
- From the Department of Medicine, MacKay Medical College, New Taipei City 252, Taiwan (C.-L.H.); Cardiovascular Division, Brigham and Women's Hospital, Boston, MA (C.-L.H., A.G., A.M.S., S.C., S.D.S.); Division of Cardiology, Departments of Internal Medicine, Mackay Memorial Hospital, Taipei, Taiwan (C.-L.H.); Department of Physiology, University of Porto Medical School, Portugal (A.G.); and Section of Cardiology, Wake Forest School of Medicine, Winston-Salem, NC (D.K.)
| | - Dalane Kitzman
- From the Department of Medicine, MacKay Medical College, New Taipei City 252, Taiwan (C.-L.H.); Cardiovascular Division, Brigham and Women's Hospital, Boston, MA (C.-L.H., A.G., A.M.S., S.C., S.D.S.); Division of Cardiology, Departments of Internal Medicine, Mackay Memorial Hospital, Taipei, Taiwan (C.-L.H.); Department of Physiology, University of Porto Medical School, Portugal (A.G.); and Section of Cardiology, Wake Forest School of Medicine, Winston-Salem, NC (D.K.)
| | - Scott D Solomon
- From the Department of Medicine, MacKay Medical College, New Taipei City 252, Taiwan (C.-L.H.); Cardiovascular Division, Brigham and Women's Hospital, Boston, MA (C.-L.H., A.G., A.M.S., S.C., S.D.S.); Division of Cardiology, Departments of Internal Medicine, Mackay Memorial Hospital, Taipei, Taiwan (C.-L.H.); Department of Physiology, University of Porto Medical School, Portugal (A.G.); and Section of Cardiology, Wake Forest School of Medicine, Winston-Salem, NC (D.K.).
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12
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Alizadehasl A, Sadeghpour A, Hali R, Bakhshandeh Abkenar H, Badano L. Assessment of left and right ventricular rotational interdependence: A speckle tracking echocardiographic study. Echocardiography 2017; 34:415-421. [PMID: 28121047 DOI: 10.1111/echo.13452] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
OBJECTIVE We sought to investigate the possible interdependence of the left (LV) and right ventricular (RV) rotational mechanics. BACKGROUND Although myocardial fiber architecture and the effect of various pathologic conditions on LV torsional mechanics have already been investigated through multiple studies using different methods, there is still a significant debate about the actual presence and functional significance of RV rotational mechanics. METHODS We perform a cross-sectional prospective study of 118 subjects, including 19 normal subjects (NS, 35±7 years), 34 patients with severe aortic stenosis (AS, 44±16 years), 26 patients with nonobstructive hypertrophic cardiomyopathies (HCM, 46±18), and 39 patients with nonischemic dilated cardiomyopathies (DCM, 39±13 years). LV and RV rotational parameters were measured using velocity vector imaging. Total LV and RV apical segment rotations as well as the rotation of the free wall of RV apex were measured separately. Interdependence of the LV and RV rotational mechanics was assessed using the Spearman rho test. RESULTS Both LV (7.3°±4.1° in NS, 11°±4.6° in AS, 7.7°±5.2° in HCM, and 1.9°±2° in DCM, P=<.0001) and RV apexes (4.7°±2° in NS, 6.1°±4° in AS, 3.2°±3.7° in HCM, and 2.4°±3.6° in DCM, P=<.0001) rotated counterclockwise in all the four study groups. Interventricular apical rotation interdependence was stronger in the AS (Spearman rho [ρ]: .716; P=.000) and in the HCM (ρ: .395; P=.04) subgroups than in the NS (ρ: .26; P=.27) and DCM (ρ: .215; P=.18). In DCM patients, RV apex rotation appeared to be independent of LV rotation. RV free wall apical rotation was larger than its corresponding value for the total apical segments in all studied groups. This difference was significant only in the AS (P=.007). CONCLUSION Our findings demonstrated a close correlation between RV and LV apical rotation parameters in different cardiac conditions as well as in normal subjects. However, in DCM patients, we also showed some independent rotation of the RV from the LV apex.
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Affiliation(s)
- Azin Alizadehasl
- Rajaie Cardiovascular Medical and Research Center, Echocardiography Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Anita Sadeghpour
- Rajaie Cardiovascular Medical and Research Center, Echocardiography Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Reza Hali
- Rajaie Cardiovascular Medical and Research Center, Echocardiography Research Center, Iran University of Medical Sciences, Tehran, Iran
| | | | - Luigi Badano
- Department of Cardiac, Thoracic and Vascular Science, University of Padova, Padova, Italy
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13
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Kim CS, Park S, Eun LY. Myocardial Rotation and Torsion in Child Growth. J Cardiovasc Ultrasound 2016; 24:223-228. [PMID: 27721953 PMCID: PMC5050311 DOI: 10.4250/jcu.2016.24.3.223] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Revised: 08/17/2016] [Accepted: 08/17/2016] [Indexed: 12/05/2022] Open
Abstract
Background The speckle tracking echocardiography can benefit to assess the regional myocardial deformations. Although, previous reports suggested no significant change in left ventricular (LV) torsion with aging, there are certain differences in LV rotation at the base and apex. The purpose of this study was to evaluate the change and relationship of LV rotation for torsion with aging in children. Methods Forty healthy children were recruited and divided into two groups of twenty based on whether the children were preschool-age (2–6 years of age) or school-age (7–12 years of age). After obtaining conventional echocardiographic data, apical and basal short axis rotation were assessed with speckle tracking echocardiography. LV rotation in the basal and apical short axis planes was determined using six myocardial segments along the central axis. Results Apical and basal LV rotation did not show the statistical difference with increased age between preschool- and school-age children. Apical radial strain showed significant higher values in preschool-age children, especially at the anterior (52.8 ± 17.4% vs. 34.7 ± 23.2%, p < 0.02), lateral (55.8 ± 20.4% vs. 36.1 ± 22.7%, p < 0.02), and posterior segments (57.1 ± 17.6% vs. 38.5 ± 21.7%, p < 0.01). The torsion values did not demonstrate the statistical difference between two groups. Conclusion This study revealed the tendency of higher rotation values in preschool-age children than in school-age children. The lesser values of rotation and torsion with increased age during childhood warrant further investigation.
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Affiliation(s)
- Chang Sin Kim
- Division of Pediatric Cardiology, Department of Pediatrics, Yonsei University College of Medicine, Seoul, Korea
| | - Sora Park
- Division of Pediatric Cardiology, Department of Pediatrics, Yonsei University College of Medicine, Seoul, Korea
| | - Lucy Youngmin Eun
- Division of Pediatric Cardiology, Department of Pediatrics, Yonsei University College of Medicine, Seoul, Korea
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14
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Left ventricular torsion and circumferential strain responses to exercise in patients with ischemic coronary artery disease. Int J Cardiovasc Imaging 2016; 33:57-67. [PMID: 27644405 DOI: 10.1007/s10554-016-0976-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Accepted: 09/02/2016] [Indexed: 10/21/2022]
Abstract
LV torsion during exercise in patients with coronary artery disease (CAD) is not well known. Circumferential strain (CS) and left ventricular (LV) torsion (Tor) have not been evaluated during ischemia in these patients. We aimed to assess the effect of ischemia during exercise echocardiography (ExE) on CS and Tor. We studied a group of 73 patients with true positive ExE results (Ischemic group: ischemia plus an abnormal coronary angiogram) and a matched control group of 66 patients with negative ExE and either normal coronary angiography or low post-test probability of CAD. Basal rotation (Rot) and apical rotation and basal and apical CS were studied by speckle tracking at rest and exercise. Apical CS and apical and basal Rot values were similar between groups at rest, except basal CS which was already worse in the ischemic group. At exercise, all rotational and CS parameters were impaired in the ischemic in comparison with the control group (basal CS: -18 ± 5 vs. -25 ± 7 %, p < 0.001; apical CS: -31 ± 11 vs. - 43 ± 9 %, p < 0.001; time to basal CS: 52 ± 6 vs. 48 ± 7 %, p = 0.001; time to apical CS: 55 ± 7 vs. 49 ± 6 %, p < 0.001; basal rotation: -0.7 ± 6.5° vs. -6.2 ± 8.5°, p < 0.001; LV twist 13.0 ± 10.4° vs.19.7 ± 11.5°, p < 0.001; LV-Tor 1.9 ± 1.6°/cm vs. 2.8 ± 1.7˚/cm, p = 0.001) with the exception of apical rotation which was similar (12.3 ± 7.4° vs. 13.4 ± 7.7°, p = NS). Basal and apical CS and basal rotation impair during exercise-induced ischemia. LV-Tor decreases with ischemia due to worsening of basal rotation, whereas apical rotation does not impair, suggesting the existence of an apical compensatory mechanism.
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15
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Stöhr EJ, Shave RE, Baggish AL, Weiner RB. Left ventricular twist mechanics in the context of normal physiology and cardiovascular disease: a review of studies using speckle tracking echocardiography. Am J Physiol Heart Circ Physiol 2016; 311:H633-44. [DOI: 10.1152/ajpheart.00104.2016] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Accepted: 07/03/2016] [Indexed: 11/22/2022]
Abstract
The anatomy of the adult human left ventricle (LV) is the result of its complex interaction with its environment. From the fetal to the neonatal to the adult form, the human LV undergoes an anatomical transformation that finally results in the most complex of the four cardiac chambers. In its adult form, the human LV consists of two muscular helixes that surround the midventricular circumferential layer of muscle fibers. Contraction of these endocardial and epicardial helixes results in a twisting motion that is thought to minimize the transmural stress of the LV muscle. In the healthy myocardium, the LV twist response to stimuli that alter preload, afterload, or contractility has been described and is deemed relatively consistent and predictable. Conversely, the LV twist response in patient populations appears to be a little more variable and less predictable, yet it has revealed important insight into the effect of cardiovascular disease on LV mechanical function. This review discusses important methodological aspects of assessing LV twist and evaluates the LV twist responses to the main physiological and pathophysiological states. It is concluded that correct assessment of LV twist mechanics holds significant potential to advance our understanding of LV function in human health and cardiovascular disease.
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Affiliation(s)
- Eric J. Stöhr
- Discipline of Physiology and Health, Cardiff School of Sport, Cardiff Metropolitan University, Cardiff, United Kingdom; and
| | - Rob E. Shave
- Discipline of Physiology and Health, Cardiff School of Sport, Cardiff Metropolitan University, Cardiff, United Kingdom; and
| | - Aaron L. Baggish
- Cardiovascular Performance Program, Division of Cardiology, Massachusetts General Hospital, Boston, Massachusetts
| | - Rory B. Weiner
- Cardiovascular Performance Program, Division of Cardiology, Massachusetts General Hospital, Boston, Massachusetts
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Toumanidis S, Kaladaridou A, Bramos D, Skaltsiotes E, Agrios J, Georgiopoulos G, Antoniou A, Pamboucas K, Papadopoulou E, Moulopoulos S. Effect of left ventricular pacing mode and site on hemodynamic, torsional and strain indices. Hellenic J Cardiol 2016; 57:169-177. [PMID: 27480609 DOI: 10.1016/j.hjc.2016.04.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Accepted: 04/14/2016] [Indexed: 10/21/2022] Open
Abstract
INTRODUCTION Several reports have indicated that left ventricular (LV) lead placement at an optimal pacing site is an important determinant of short- and long-term outcome. This study investigated the effect of pacing mode (atrioventricular [AV] or ventricular) and site (LV apical or lateral) outside the ischemic region on the LV hemodynamic, torsional and strain indices in the ischemic myocardium. METHODS Experiments were conducted in anesthetized open-chest pigs (n = 15) 30 min after LAD ligation to investigate the hemodynamic effects of temporary epicardial AV and ventricular LV pacing at the LV apical (outside the ischemic region) or lateral wall. LV hemodynamic data were recorded (ejection fraction, stroke volume, dP/dtmax, systolic pressure, cardiac output and e/e΄ ratio) and torsional (twist, rotation), as well as deformation (radial and circumferential strain), indices of LV function were assessed using two-dimensional speckle tracking imaging. RESULTS The LV function was highly dependent on the pacing mode and site. LV dP/dtmax, systolic pressure and twist decreased significantly during LV pacing in comparison to sinus rhythm (p = 0.004, p<0.001, p = 0.002, respectively). Torsion in sinus rhythm decreased significantly during AV-pacing at the lateral wall (0.11±0.04°/mm vs. 0.06±0.02°/mm, p = 0.005) but did not change significantly during AV-pacing at the apex (0.07±0.05°/mm). CONCLUSIONS LV pacing at the apical or lateral wall, in the ischemic myocardium, leads to a suboptimal response in comparison to sinus rhythm. LV pacing at the apex outside the ischemic area exhibits a better response than pacing at the lateral wall, possibly because pacing from this site leads to a more physiological propagation of electrical conduction.
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Affiliation(s)
- Savvas Toumanidis
- Department of Clinical Therapeutics, Medical School, National and Kapodistrian University of Athens, "Alexandra" Hospital, Athens, Greece.
| | - Anna Kaladaridou
- Department of Clinical Therapeutics, Medical School, National and Kapodistrian University of Athens, "Alexandra" Hospital, Athens, Greece
| | - Dimitrios Bramos
- Department of Clinical Therapeutics, Medical School, National and Kapodistrian University of Athens, "Alexandra" Hospital, Athens, Greece
| | - Elias Skaltsiotes
- Department of Clinical Therapeutics, Medical School, National and Kapodistrian University of Athens, "Alexandra" Hospital, Athens, Greece
| | - John Agrios
- Department of Clinical Therapeutics, Medical School, National and Kapodistrian University of Athens, "Alexandra" Hospital, Athens, Greece
| | - George Georgiopoulos
- Department of Clinical Therapeutics, Medical School, National and Kapodistrian University of Athens, "Alexandra" Hospital, Athens, Greece
| | - Anna Antoniou
- Department of Clinical Therapeutics, Medical School, National and Kapodistrian University of Athens, "Alexandra" Hospital, Athens, Greece
| | - Konstantinos Pamboucas
- Department of Clinical Therapeutics, Medical School, National and Kapodistrian University of Athens, "Alexandra" Hospital, Athens, Greece
| | - Elektra Papadopoulou
- Department of Clinical Therapeutics, Medical School, National and Kapodistrian University of Athens, "Alexandra" Hospital, Athens, Greece
| | - Spyridon Moulopoulos
- Department of Clinical Therapeutics, Medical School, National and Kapodistrian University of Athens, "Alexandra" Hospital, Athens, Greece
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Algazzar AS, Katta AA, Ahmed KS, Elkenany NM, Ibrahim MA. Changes in Left Ventricular Global and Regional Longitudinal Strain During Right Ventricular Pacing. Cardiol Res 2016; 7:17-24. [PMID: 28197264 PMCID: PMC5295530 DOI: 10.14740/cr454w] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/28/2016] [Indexed: 01/23/2023] Open
Abstract
Background Our study aimed to demonstrate the short-term impacts of right ventricular apical pacing (RVAP) and right ventricular septal pacing (RVSP) on left ventricular (LV) regional longitudinal strain (RLS) and global longitudinal strain (GLS) in patients with preserved ejection fraction (EF). LV strain and functions may be altered by RVAP. RVSP might be a better alternative. The detrimental effect of right ventricular (RV) pacing may be mediated by regional LV impairment. Methods Sixty-two patients indicated for permanent pacemaker implantation and preserved LV systolic function were included. Dual chamber pacemakers were implanted in all patients. Patients were divided into two groups according to RV lead position: group A (RVAP, n = 32) and group B (RVSP, n = 30). Patients were examined at baseline and after 6 months of implantation for LV systolic functions, global and regional strain by echocardiography and 2D speckle tracking echocardiography. Results Paced QRS duration was significantly shorter in group B compared to group A patients (P = 0.02). Regarding ventricular strain, there was no statistically significant difference between both groups at baseline measurements in comparisons of GLS, relative apical longitudinal strain (rALS) and RLS (P > 0.05). In contrast, there was statistically significant difference between both groups in results of GLS (P = 0.01) at 6 months. In addition, RLSs in septal, apical and rALS were affected after 6 months with P values of 0.02, 0.03 and 0.03, respectively. Conclusion RVAP appears to worsen GLS more than RVSP, and the resultant decrease in apical strain is most correlated region to decrease in GLS.
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Affiliation(s)
| | - Azza Ali Katta
- Cardiology Department, National Heart Institute, Cairo, Egypt
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Echocardiographic assessment of left ventricular systolic function: from ejection fraction to torsion. Heart Fail Rev 2015; 21:77-94. [DOI: 10.1007/s10741-015-9521-8] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Rasalingam R, Holland MR, Cooper DH, Novak E, Rich MW, Miller JG, Pérez JE. Patients with Diabetes and Significant Epicardial Coronary Artery Disease Have Increased Systolic Left Ventricular Apical Rotation and Rotation Rate at Rest. Echocardiography 2015; 33:537-45. [PMID: 26593856 DOI: 10.1111/echo.13124] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
OBJECTIVE The purpose of this study was to determine whether resting myocardial deformation and rotation may be altered in diabetic patients with significant epicardial coronary artery disease (CAD) with normal left ventricular ejection fraction. DESIGN A prospective observational study. SETTING Diagnosis of epicardial CAD in patients with diabetes. PATIENTS AND METHODS Eighty-four patients with diabetes suspected of epicardial CAD scheduled for cardiac catheterization had a resting echocardiogram performed prior to their procedure. Echocardiographic measurements were compared between patients with and without significant epicardial CAD as determined by cardiac catheterization. MAIN OUTCOME MEASURES Measurement of longitudinal strain, strain rate, apical rotation, and rotation rate, using speckle tracking echocardiography. RESULTS Eighty-four patients were studied, 39 (46.4%) of whom had significant epicardial CAD. Global peak systolic apical rotation was significantly increased (14.9 ± 5.1 vs. 11.0 ± 4.8 degrees, P < 0.001) in patients with epicardial CAD along with faster peak systolic apical rotation rate (90.4 ± 29 vs. 68.1 ± 22.2 degrees/sec, P < 0.001). These findings were further confirmed through multivariate logistic regression analysis (global peak systolic apical rotation OR = 1.17, P = 0.004 and peak systolic apical rotation rate OR = 1.05, P < 0.001). CONCLUSIONS Patients with diabetes with significant epicardial CAD and normal LVEF exhibit an increase in peak systolic apical counterclockwise rotation and rotation rate detected by echocardiography, suggesting that significant epicardial CAD and its associated myocardial effects in patients with diabetes may be detected noninvasively at rest.
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Affiliation(s)
- Ravi Rasalingam
- Cardiovascular Division, Boston Veterans Affairs Medical Center, West Roxbury, Massachusetts
| | - Mark R Holland
- Department of Radiology and Imaging Sciences, Indiana University, Indianapolis, Indiana
| | - Daniel H Cooper
- Cardiovascular Division, Washington University School of Medicine, St. Louis, Missouri
| | - Eric Novak
- Cardiovascular Division, Washington University School of Medicine, St. Louis, Missouri
| | - Michael W Rich
- Cardiovascular Division, Washington University School of Medicine, St. Louis, Missouri
| | - James G Miller
- Department of Physics, Washington University in St. Louis, St. Louis, Missouri
| | - Julio E Pérez
- Cardiovascular Division, Washington University School of Medicine, St. Louis, Missouri
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20
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Cutrì E, Serrani M, Bagnoli P, Fumero R, Costantino ML. The cardiac torsion as a sensitive index of heart pathology: A model study. J Mech Behav Biomed Mater 2015; 55:104-119. [PMID: 26580023 DOI: 10.1016/j.jmbbm.2015.10.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Revised: 10/13/2015] [Accepted: 10/22/2015] [Indexed: 01/29/2023]
Abstract
The torsional behaviour of the heart (i.e. the mutual rotation of the cardiac base and apex) was proved to be sensitive to alterations of some cardiovascular parameters, i.e. preload, afterload and contractility. Moreover, pathologies which affect the fibers architecture and cardiac geometry were proved to alter the cardiac torsion pattern. For these reasons, cardiac torsion represents a sensitive index of ventricular performance. The aim of this work is to provide further insight into physiological and pathological alterations of the cardiac torsion by means of computational analyses, combining a structural model of the two ventricles with simple lumped parameter models of both the systemic and the pulmonary circulations. Starting from diagnostic images, a 3D anatomy based geometry of the two ventricles was reconstructed. The myocytes orientation in the ventricles was assigned according to literature data and the myocardium was modelled as an anisotropic hyperelastic material. Both the active and the passive phases of the cardiac cycle were modelled, and different clinical conditions were simulated. The results in terms of alterations of the cardiac torsion in the presence of pathologies are in agreement with experimental literature data. The use of a computational approach allowed the investigation of the stresses and strains in the ventricular wall as well as of the global hemodynamic parameters in the presence of the considered pathologies. Furthermore, the model outcomes highlight how for specific pathological conditions, an altered torsional pattern of the ventricles can be present, encouraging the use of the ventricular torsion in the clinical practice.
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Affiliation(s)
- E Cutrì
- Laboratory of Biological Structure Mechanics (LaBS), Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy.
| | - M Serrani
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Pembroke Street, Cambridge CB2 3RA, UK.
| | - P Bagnoli
- Laboratory of Biological Structure Mechanics (LaBS), Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy.
| | - R Fumero
- Laboratory of Biological Structure Mechanics (LaBS), Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy.
| | - M L Costantino
- Laboratory of Biological Structure Mechanics (LaBS), Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy.
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21
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Jahanzad Z, Liew YM, Bilgen M, McLaughlin RA, Leong CO, Chee KH, Aziz YFA, Ung NM, Lai KW, Ng SC, Lim E. Regional assessment of LV wall in infarcted heart using tagged MRI and cardiac modelling. Phys Med Biol 2015; 60:4015-31. [DOI: 10.1088/0031-9155/60/10/4015] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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22
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Barutçu A, Bekler A, Temiz A, Kırılmaz B, Yener AÜ, Tan YZ, Gazi E, Altun B. Left Ventricular Twist Mechanics Are Impaired in Patients with Coronary Slow Flow. Echocardiography 2015; 32:1647-54. [DOI: 10.1111/echo.12918] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Affiliation(s)
- Ahmet Barutçu
- Faculty of Medicine; Department of Cardiology; Çanakkale Onsekiz Mart University; Çanakkale Turkey
| | - Adem Bekler
- Faculty of Medicine; Department of Cardiology; Çanakkale Onsekiz Mart University; Çanakkale Turkey
| | - Ahmet Temiz
- Faculty of Medicine; Department of Cardiology; Çanakkale Onsekiz Mart University; Çanakkale Turkey
| | - Bahadır Kırılmaz
- Faculty of Medicine; Department of Cardiology; Çanakkale Onsekiz Mart University; Çanakkale Turkey
| | - Ali Ümit Yener
- Faculty of Medicine; Department of Cardiovascular Surgery; Çanakkale Onsekiz Mart University; Çanakkale Turkey
| | - Yusuf Ziya Tan
- Faculty of Medicine; Department of Nuclear Medicine; Çanakkale Onsekiz Mart University; Çanakkale Turkey
| | - Emine Gazi
- Faculty of Medicine; Department of Cardiology; Çanakkale Onsekiz Mart University; Çanakkale Turkey
| | - Burak Altun
- Faculty of Medicine; Department of Cardiology; Çanakkale Onsekiz Mart University; Çanakkale Turkey
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23
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Nacar AB, Topcu S, Kurt M, Tanboga IH, Karakaş MF, Buyukkaya E, Aksakal E, Sen N, Akcay AB, Bilen E. Effect of Remote Ischemic Postconditioning on Left Ventricular Mechanics. Echocardiography 2015; 32:448-53. [DOI: 10.1111/echo.12677] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Affiliation(s)
| | - Selim Topcu
- School of Medicine; Ataturk University; Erzurum Turkey
| | - Mustafa Kurt
- Mustafa Kemal University; School of Medicine; Hatay Turkey
| | | | | | - Eyup Buyukkaya
- Mustafa Kemal University; School of Medicine; Hatay Turkey
| | | | - Nihat Sen
- Mustafa Kemal University; School of Medicine; Hatay Turkey
| | | | - Emine Bilen
- Ankara Ataturk Education and Research Hospital; Ankara Turkey
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24
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Jiang K, Yu X. Quantification of regional myocardial wall motion by cardiovascular magnetic resonance. Quant Imaging Med Surg 2014; 4:345-57. [PMID: 25392821 DOI: 10.3978/j.issn.2223-4292.2014.09.01] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2014] [Accepted: 09/12/2014] [Indexed: 12/12/2022]
Abstract
Cardiovascular magnetic resonance (CMR) is a versatile tool that also allows comprehensive and accurate measurement of both global and regional myocardial contraction. Quantification of regional wall motion parameters, such as strain, strain rate, twist and torsion, has been shown to be more sensitive to early-stage functional alterations. Since the invention of CMR tagging by magnetization saturation in 1988, several CMR techniques have been developed to enable the measurement of regional myocardial wall motion, including myocardial tissue tagging, phase contrast mapping, displacement encoding with stimulated echoes (DENSE), and strain encoded (SENC) imaging. These techniques have been developed with their own advantages and limitations. In this review, two widely used and closely related CMR techniques, i.e., tissue tagging and DENSE, will be discussed from the perspective of pulse sequence development and image-processing techniques. The clinical and preclinical applications of tissue tagging and DENSE in assessing wall motion mechanics in both normal and diseased hearts, including coronary artery diseases, hypertrophic cardiomyopathy, aortic stenosis, and Duchenne muscular dystrophies, will be discussed.
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Affiliation(s)
- Kai Jiang
- 1 Departments of Biomedical Engineering, 2 Case Center for Imaging Research, 3 Radiology, and 4 Physiology and Biophysics, Case Western Reserve University, Cleveland, Ohio, USA
| | - Xin Yu
- 1 Departments of Biomedical Engineering, 2 Case Center for Imaging Research, 3 Radiology, and 4 Physiology and Biophysics, Case Western Reserve University, Cleveland, Ohio, USA
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25
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Pokharel P, Yoon AJ, Bella JN. Noninvasive measurement and clinical relevance of myocardial twist and torsion. Expert Rev Cardiovasc Ther 2014; 12:1305-15. [DOI: 10.1586/14779072.2014.970179] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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26
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Peteiro J, Bouzas-Mosquera A, Barge-Caballero G, Martinez D, Yañez JC, Lopez-Perez M, Gargallo P, Castro-Beiras A. Torsión ventricular izquierda durante el ejercicio en pacientes con y sin respuesta isquémica a la ecocardiografía de ejercicio. Rev Esp Cardiol 2014. [DOI: 10.1016/j.recesp.2013.12.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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Buckberg GD, Hoffman JIE, Coghlan HC, Nanda NC. Ventricular structure-function relations in health and disease: part II. Clinical considerations. Eur J Cardiothorac Surg 2014; 47:778-87. [PMID: 25082144 DOI: 10.1093/ejcts/ezu279] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2014] [Accepted: 06/02/2014] [Indexed: 12/15/2022] Open
Abstract
Normal cardiac function of the left and right ventricles, together with the septum, is related to form/function interactions within the helical ventricular myocardial band. This knowledge is a prerequisite to understanding form/function interactions in diseases and for planning new treatments. Topics discussed include congestive heart failure in dilated hearts of ischaemic, valvar or nonischaemic origin as well as diastolic dysfunction. Similar thinking underlies novel treatments for dyssynchrony in pacing, together with focusing upon varying global left or right ventricular anatomy to correct mitral and tricuspid insufficiency caused by tethering of the leaflets. The septum is the lion of the right ventricle and insight is provided into offsetting septal damage during cardiac surgery, rebuilding its anatomical structure in post-tetralogy pulmonary insufficiency, as well as rectifying its dysfunction by decompression in patients with a left ventricular assist device.
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Affiliation(s)
- Gerald D Buckberg
- Department of Cardiothoracic Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Julien I E Hoffman
- Department of Pediatrics and Cardiovascular Research Institute, University of California, San Francisco, CA, USA
| | - H Cecil Coghlan
- Division of Cardiovascular Diseases, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Navin C Nanda
- Division of Cardiovascular Diseases, University of Alabama at Birmingham, Birmingham, AL, USA
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28
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Peteiro J, Bouzas-Mosquera A, Barge-Caballero G, Martinez D, Yañez JC, Lopez-Perez M, Gargallo P, Castro-Beiras A. Left ventricular torsion during exercise in patients with and without ischemic response to exercise echocardiography. ACTA ACUST UNITED AC 2014; 67:706-16. [PMID: 25172066 DOI: 10.1016/j.rec.2013.12.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2013] [Accepted: 12/17/2013] [Indexed: 11/27/2022]
Abstract
INTRODUCTION AND OBJECTIVES Left ventricular torsion decreases during transmural myocardial ischemia, but the effect of exercise on left ventricular torsion has not been widely studied. We hypothesized that exercise-induced ischemia may impair left ventricular torsion. Therefore, our aim was to study the effects of exercise on left ventricular torsion in patients with an ischemic response to exercise echocardiography and in patients with a normal response. METHODS A retrospective analysis was performed in 172 patients with ejection fraction ≥ 50% who were referred for exercise-echocardiography and studied by speckle imaging at rest, peak and postexercise. Torsion was defined as apical rotation - basal rotation (in degrees) / left ventricular length (in centimeters). A total of 114 patients had a normal exercise echocardiography and 58 patients had an ischemic response to exercise echocardiography. RESULTS Patients with ischemic response to the test exhibited less basal rotation at peak exercise (+0.30° [2.39°] vs -0.65° [2.61°] in the normal group; P = .03), whereas peak apical rotation was similar (ischemic response to the test, 7.80° [3.51°]; normal response, 7.27° [3.28°]; P =.36). Torsion at peak exercise was also similar (1.07° [0.60°] in the ischemic response to the test group vs 1.16° [0.57°] in normal group; P =.37). A more impaired peak basal rotation was found in patients with anterior or anterior+posterior involvement (anterior ischemic response, +1.22° [2.45°]; anterior + posterior ischemic response, -0.20° [2.25°]; posterior ischemic response, -0.71° [1.96°]; normal response, -0.65° [2.60°]; P =.02). CONCLUSIONS Basal rotation at peak exercise is impaired in patients with an ischemic response to exercise echocardiography, particularly in those with anterior involvement. Apical rotation and torsion are similar to those in patients with normal exercise echocardiography.
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Affiliation(s)
- Jesús Peteiro
- Laboratorio de Ecocardiografia de Estrés, Complejo Hospitalario Universitario de A Coruña (CHUAC), A Coruña, Spain.
| | - Alberto Bouzas-Mosquera
- Laboratorio de Ecocardiografia de Estrés, Complejo Hospitalario Universitario de A Coruña (CHUAC), A Coruña, Spain
| | - Gonzalo Barge-Caballero
- Laboratorio de Ecocardiografia de Estrés, Complejo Hospitalario Universitario de A Coruña (CHUAC), A Coruña, Spain
| | - Dolores Martinez
- Laboratorio de Ecocardiografia de Estrés, Complejo Hospitalario Universitario de A Coruña (CHUAC), A Coruña, Spain
| | - Juan C Yañez
- Laboratorio de Ecocardiografia de Estrés, Complejo Hospitalario Universitario de A Coruña (CHUAC), A Coruña, Spain
| | - Manuel Lopez-Perez
- Laboratorio de Ecocardiografia de Estrés, Complejo Hospitalario Universitario de A Coruña (CHUAC), A Coruña, Spain
| | - Paula Gargallo
- Laboratorio de Ecocardiografia de Estrés, Complejo Hospitalario Universitario de A Coruña (CHUAC), A Coruña, Spain
| | - Alfonso Castro-Beiras
- Servicio de Cardiología, Complejo Hospitalario Universitario de A Coruña (CHUAC), A Coruña, Spain
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29
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Shang Q, Tam LS, Sanderson JE, Lee APW, Li EKM, Yu CM. Impaired Left Ventricular Apical Rotation is Associated with Disease Activity of Psoriatic Arthritis. J Rheumatol 2014; 41:706-13. [DOI: 10.3899/jrheum.130589] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Objective.Although early cardiovascular (CV) involvement has been found in patients with psoriatic arthritis (PsA), few studies have related this to PsA disease activity. The aim of our study was to evaluate left ventricular (LV) mechanics using novel, more sensitive techniques based on assessment of LV rotation for the detection of impaired LV function in patients with PsA correlated with disease-related risk factors.Methods.Seventy-six patients with PsA and 24 healthy control subjects were enrolled, including 33 patients without any CV risk factors. All participants underwent conventional echocardiography and 2-dimensional speckle tracking imaging. Global longitudinal, apical circumferential, and radial strain, and apical rotation and maximal untwisting rate during early diastole were measured.Results.Although patients with PsA had normal LV ejection fraction, the myocardial deformation in multidimensional planes was impaired. Based on the cutoff point derived from the apical rotation of control subjects, 81% of the patients had subclinical systolic and/or diastolic dysfunction. Similar prevalence was found in patients without CV risk factors. Spearman correlation demonstrated a relationship between Disease Activity Score in 28 joints (r = 0.299, p = 0.011), erythrocyte sedimentation rate (r = 0.309, p = 0.008), and impaired apical rotation, even after adjusting for age and hypertension. No correlation was found between longitudinal, radial, and circumferential strain and disease activity.Conclusion.Subclinical impaired myocardial deformation was common in patients with PsA even without CV risk factors. Apical rotation was associated with the status of PsA disease activity. These new speckle tracking echocardiography techniques can detect subclinical myocardial involvement in PsA.
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30
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Codreanu I, Robson MD, Rider OJ, Pegg TJ, Dasanu CA, Jung BA, Clarke K, Holloway CJ. Effects of ventricular insertion sites on rotational motion of left ventricular segments studied by cardiac MR. Br J Radiol 2014; 86:20130326. [PMID: 24133098 DOI: 10.1259/bjr.20130326] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVE Obtaining new details for rotational motion of left ventricular (LV) segments using velocity encoding cardiac MR and correlating the regional motion patterns to LV insertion sites. METHODS Cardiac MR examinations were performed on 14 healthy volunteers aged between 19 and 26 years. Peak rotational velocities and circumferential velocity curves were obtained for 16 ventricular segments. RESULTS Reduced peak clockwise velocities of anteroseptal segments (i.e. Segments 2 and 8) and peak counterclockwise velocities of inferoseptal segments (i.e. Segments 3 and 9) were the most prominent findings. The observations can be attributed to the LV insertion sites into the right ventricle, limiting the clockwise rotation of anteroseptal LV segments and the counterclockwise rotation of inferoseptal segments as viewed from the apex. Relatively lower clockwise velocities of Segment 5 and counterclockwise velocities of Segment 6 were also noted, suggesting a cardiac fixation point between these two segments, which is in close proximity to the lateral LV wall. CONCLUSION Apart from showing different rotational patterns of LV base, mid ventricle and apex, the study showed significant differences in the rotational velocities of individual LV segments. Correlating regional wall motion with known orientation of myocardial aggregates has also provided new insights into the mechanisms of LV rotational motions during a cardiac cycle. ADVANCES IN KNOWLEDGE LV insertion into the right ventricle limits the clockwise rotation of anteroseptal LV segments and the counterclockwise rotation of inferoseptal segments adjacent to the ventricular insertion sites. The pattern should be differentiated from wall motion abnormalities in cardiac pathology.
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Affiliation(s)
- I Codreanu
- Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, UK
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31
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Xie M, Zhang W, Cheng TO, Wang X, Lu X, Hu X. Left ventricular torsion abnormalities in patients after the arterial switch operation for transposition of the great arteries with intact ventricular septum. Int J Cardiol 2013; 168:4631-7. [PMID: 23953262 DOI: 10.1016/j.ijcard.2013.07.194] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2013] [Accepted: 07/20/2013] [Indexed: 11/24/2022]
Abstract
BACKGROUND The arterial switch operation (ASO) is currently the treatment of choice for infants with transposition of the great arteries (TGA). Little is known, however, about the alteration of anatomic left ventricular (LV) torsional mechanics after the operation. This study sought to evaluate LV torsion in patients of transposition of the great arteries with intact ventricular septum (TGA/IVS) using speckle tracking echocardiography. METHODS Echocardiographic images were prospectively acquired in 32 infants (age range, 0.5-60 months) who successfully underwent ASO repair at about 1 month of age and in 48 normal controls. They were divided into early and late categories according to the age at the time of the study. The LV peak systolic torsion and systolic twisting and diastolic untwisting velocities were determined by speckle tracking. Mitral inflow velocity obtained by Pulsed-wave Doppler and mitral annular velocities drawn by septal tissue Doppler were also analyzed. RESULTS Compared with controls, the early postoperative group (TGA1) had significantly higher septal E/e' (P=0.000). In contrast, septal e' velocity (P=0.000), LV peak apical rotation (P=0.01), twist (P=0.02) and peak untwisting velocity (PUV) (P=0.001) were lower in patients than in controls. For the normal younger group (Control1), PUV correlated positively with e' (r=0.68, P<0.001). No significant difference in LV twisting and untwisting was noted between the TGA2 and Control2. CONCLUSIONS Two dimensional speckle tracking echocardiography may sensitively detect impaired LV torsional mechanics in patients with TGA/IVS early after ASO, and the impairment of LV relaxation leads to increased LV filling pressure which is consistent with higher E/e'. However, all patients recovered well thereafter and the overall midterm outcome of ASO is satisfactory.
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Affiliation(s)
- Mingxing Xie
- Department of Ultrasonography, Union Hospital of Tongji Medical College, Huazhong University of Science and Technology, Hubei Provincial Key Laboratory of Molecular Imaging, Wuhan 430022, People's Republic of China
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Yoneyama K, Gjesdal O, Choi EY, Wu CO, Hundley WG, Gomes AS, Liu CY, McClelland RL, Bluemke DA, Lima JAC. Age, sex, and hypertension-related remodeling influences left ventricular torsion assessed by tagged cardiac magnetic resonance in asymptomatic individuals: the multi-ethnic study of atherosclerosis. Circulation 2012; 126:2481-90. [PMID: 23147172 DOI: 10.1161/circulationaha.112.093146] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
BACKGROUND The aim of the present study was to evaluate how torsion is influenced by left ventricular (LV) remodeling associated with age, sex, and hypertension in a large community-based population. METHODS AND RESULTS Myocardial shortening and torsion were assessed by tagged cardiac magnetic resonance in 1478 participants without clinically apparent cardiovascular disease in the Multi-Ethnic Study of Atherosclerosis (MESA). Torsion was defined as the difference between apical and basal rotation divided by slice distance. In multivariable linear regression models, older age was associated with lower stroke volume (-3.6 mL per decade; P<0.001) and higher LV mass-to-volume ratio (0.03 g/mL per decade; P<0.001), along with lower circumferential shortening (-0.17% per decade; P<0.05). Torsion, however, was greater at older ages (0.14° per decade; P<0.001) and in women (0.37°/cm versus men; P<0.001). Hypertensive participants had higher LV mass and LV mass-to-volume ratio (15.5 g and 0.07 g/mL, respectively; P<0.001 for both). Circumferential shortening was lower in hypertensive (-0.42%; P<0.01), whereas torsion was higher after adjustment for age and sex (0.17°/cm; P<0.05). CONCLUSIONS Older age is associated with lower LV volumes and greater relative wall thickness and is accompanied by lower circumferential myocardial shortening, whereas torsion is greater with older age. Hypertensive individuals have greater LV volumes and relative wall thickness and lower circumferential shortening. Torsion, however, is greater in hypertension independently of age and sex. Torsion may therefore represent a compensatory mechanism to maintain an adequate stroke volume and cardiac output in the face of the progressively reduced LV volumes and myocardial shortening associated with hypertension and aging.
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Affiliation(s)
- Kihei Yoneyama
- Johns Hopkins University, Johns Hopkins Hospital, 600 N Wolfe St, Baltimore, MD 21287, USA
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Young AA, Cowan BR. Evaluation of left ventricular torsion by cardiovascular magnetic resonance. J Cardiovasc Magn Reson 2012; 14:49. [PMID: 22827856 PMCID: PMC3461493 DOI: 10.1186/1532-429x-14-49] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2012] [Accepted: 07/24/2012] [Indexed: 12/15/2022] Open
Abstract
Recently there has been considerable interest in LV torsion and its relationship with symptomatic and pre-symptomatic disease processes. Torsion gives useful additional information about myocardial tissue performance in both systolic and diastolic function. CMR assessment of LV torsion is simply and efficiently performed. However, there is currently a wide variation in the reporting of torsional motion and the procedures used for its calculation. For example, torsion has been presented as twist (degrees), twist per length (degrees/mm), shear angle (degrees), and shear strain (dimensionless). This paper reviews current clinical applications and shows how torsion can give insights into LV mechanics and the influence of LV geometry and myocyte fiber architecture on cardiac function. Finally, it provides recommendations for CMR measurement protocols, attempts to stimulate standardization of torsion calculation, and suggests areas of useful future research.
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Affiliation(s)
- Alistair A Young
- Department of Anatomy with Radiology, University of Auckland, Auckland, New Zealand
| | - Brett R Cowan
- Department of Anatomy with Radiology, University of Auckland, Auckland, New Zealand
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34
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Different impacts of acute myocardial infarction on left ventricular apical and basal rotation. Eur Heart J Cardiovasc Imaging 2011; 13:483-9. [DOI: 10.1093/ejechocard/jer272] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Ashraf M, Zhou Z, Nguyen T, Ashraf S, Sahn DJ. Apex to base left ventricular twist mechanics computed from high frame rate two-dimensional and three-dimensional echocardiography: a comparison study. J Am Soc Echocardiogr 2011; 25:121-8. [PMID: 21995883 DOI: 10.1016/j.echo.2011.09.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2010] [Indexed: 11/16/2022]
Abstract
BACKGROUND The aim of this study was to compare two-dimensional (2D) and three-dimensional (3D) methods for computing left ventricular (LV) rotation. METHODS A two-axis linear/rotary system was designed using rotary motors controlled through a digital interface, and 10 freshly harvested pig hearts were studied. Each heart was mounted on the rotary actuator with the base being rotated at different known degrees of rotation (10°, 15°, 20°, and 25°) and was passively driven by a pump with calibrated stoke volume (50 mL) at a constant rate (60 beats/min) simultaneously. Cardiac motion was scanned to acquire 2D short-axis views using a GE Vivid 7 system for assessing rotation, and 3D apical full-volume loops were acquired using a Toshiba Applio Artida ultrasound system. Full-volume 3D image loops were analyzed online with Toshiba Wall Motion Tracking software, and short-axis 2D images were analyzed offline for LV rotation in GE EchoPAC PC at corresponding LV levels. RESULTS At each state, both 2D and 3D echocardiography detected the changes in LV rotation but overestimated the rotation degrees. The biases for overestimation from 3D imaging were smaller compared with 2D imaging at each LV level. Both methods, when compared with each other, showed a linear correlation (r = 0.84, P < .0001). Bland-Altman comparison showed 99% of data points within range, with a constant bias between both methods (adjusted values of 3D = 1.892 + 0.964 × 3D). CONCLUSIONS Although 3D echocardiography showed smaller bias, the results between 2D and 3D echocardiography were comparable.
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Affiliation(s)
- Muhammad Ashraf
- Oregon Health & Science University, Portland, Oregon 97239-3098, USA
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Buckberg G, Hoffman JI, Nanda NC, Coghlan C, Saleh S, Athanasuleas C. Ventricular Torsion and Untwisting: Further Insights into Mechanics and Timing Interdependence: A Viewpoint. Echocardiography 2011; 28:782-804. [DOI: 10.1111/j.1540-8175.2011.01448.x] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Cho EJ, Jiamsripong P, Calleja AM, Alharthi MS, McMahon EM, Chandrasekaran K, Cha S, Bukatina AE, Khandheria BK, Belohlavek M. The Left Ventricle Responds to Acute Graded Elevation of Right Ventricular Afterload by Augmentation of Twist Magnitude and Untwist Rate. J Am Soc Echocardiogr 2011; 24:922-9. [DOI: 10.1016/j.echo.2011.04.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2010] [Indexed: 12/20/2022]
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Ibrahim ESH. Myocardial tagging by cardiovascular magnetic resonance: evolution of techniques--pulse sequences, analysis algorithms, and applications. J Cardiovasc Magn Reson 2011; 13:36. [PMID: 21798021 PMCID: PMC3166900 DOI: 10.1186/1532-429x-13-36] [Citation(s) in RCA: 203] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2011] [Accepted: 07/28/2011] [Indexed: 02/06/2023] Open
Abstract
Cardiovascular magnetic resonance (CMR) tagging has been established as an essential technique for measuring regional myocardial function. It allows quantification of local intramyocardial motion measures, e.g. strain and strain rate. The invention of CMR tagging came in the late eighties, where the technique allowed for the first time for visualizing transmural myocardial movement without having to implant physical markers. This new idea opened the door for a series of developments and improvements that continue up to the present time. Different tagging techniques are currently available that are more extensive, improved, and sophisticated than they were twenty years ago. Each of these techniques has different versions for improved resolution, signal-to-noise ratio (SNR), scan time, anatomical coverage, three-dimensional capability, and image quality. The tagging techniques covered in this article can be broadly divided into two main categories: 1) Basic techniques, which include magnetization saturation, spatial modulation of magnetization (SPAMM), delay alternating with nutations for tailored excitation (DANTE), and complementary SPAMM (CSPAMM); and 2) Advanced techniques, which include harmonic phase (HARP), displacement encoding with stimulated echoes (DENSE), and strain encoding (SENC). Although most of these techniques were developed by separate groups and evolved from different backgrounds, they are in fact closely related to each other, and they can be interpreted from more than one perspective. Some of these techniques even followed parallel paths of developments, as illustrated in the article. As each technique has its own advantages, some efforts have been made to combine different techniques together for improved image quality or composite information acquisition. In this review, different developments in pulse sequences and related image processing techniques are described along with the necessities that led to their invention, which makes this article easy to read and the covered techniques easy to follow. Major studies that applied CMR tagging for studying myocardial mechanics are also summarized. Finally, the current article includes a plethora of ideas and techniques with over 300 references that motivate the reader to think about the future of CMR tagging.
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Cheung YF, Li SN, Chan GCF, Wong SJ, Ha SY. Left ventricular twisting and untwisting motion in childhood cancer survivors. Echocardiography 2011; 28:738-45. [PMID: 21615484 DOI: 10.1111/j.1540-8175.2011.01429.x] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
BACKGROUND Anthracycline has been shown to degrade titin that plays a role in myocardial twisting and untwisting. This study aimed to test the hypothesis that left ventricular (LV) twisting and untwisting motion may be altered in children after anthracycline therapy. METHODS Thirty-six childhood leukemia survivors aged 15.6 ± 5.5 years and 20 healthy controls aged 16.8 ± 7.7 years (P = 0.54) were studied. LV twisting and untwisting motion was determined using speckle tracking imaging, whereas LV ejection fraction and systolic and diastolic mitral annular velocities were determined respectively by three-dimensional and tissue-Doppler echocardiography. RESULTS Compared with controls, patients had significantly lower LV ejection fraction (P = 0.01) but similar systolic and diastolic mitral annular velocities (all P > 0.05). Their peak LV torsion (P = 0.003), systolic twisting velocity (P < 0.001), and diastolic untwisting velocity (P = 0.04) were significantly lower than controls, which could be attributable to their reduced apical rotation (P = 0.03) and apical untwisting rate (P = 0.002). For the whole cohort, LV systolic torsion and twisting velocity correlated significantly with apical untwisting rate (P < 0.001) and LV diastolic untwisting velocity (P < 0.001). In patients, none of the twisting or untwisting parameters were found to correlate with cumulative anthracycline dose (all P > 0.05). Twenty-eight (78%) patients had LV ejection fractions ≥50%. Although their systolic and diastolic mitral annular velocities were similar to those of controls, their peak LV torsion (P = 0.005), apical untwisting rate (P = 0.01), and LV systolic twisting velocity (P = 0.001) remained significantly lower. CONCLUSION Impairment of LV twisting and untwisting motion is evident in children after anthracycline therapy, even in those with "normal" LV ejection fractions.
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Affiliation(s)
- Yiu-fai Cheung
- Department of Pediatrics and Adolescent Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong, China.
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Leitman M, Bachner-Hinenzon N, Adam D, Fuchs T, Theodorovich N, Peleg E, Krakover R, Moravsky G, Uriel N, Vered Z. Speckle tracking imaging in acute inflammatory pericardial diseases. Echocardiography 2011; 28:548-55. [PMID: 21539601 DOI: 10.1111/j.1540-8175.2010.01371.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
BACKGROUND Left ventricular (LV) function in acute perimyocarditis is variable. We evaluated LV function in patients with acute perimyocarditis with speckle tracking. METHODS Thirty-eight patients with acute perimyocarditis and 20 normal subjects underwent echocardiographic examination. Three-layers strain and twist angle were assessed with a speckle tracking. Follow-up echo was available in 21 patients. RESULTS Strain was higher in normal subjects than in patients with perimyocarditis. Twist angle was reduced in perimyocarditis--10.9° ± 5.4 versus 17.6° ± 5.8, P < 0.001. Longitudinal strain and twist angle were higher in normal subjects than in patients with perimyocarditis and apparently normal LV function. Follow-up echo in 21 patients revealed improvement in longitudinal strain. CONCLUSIONS Patients with acute perimyocarditis have lower twist angle, longitudinal and circumferential strain. Patients with perimyocarditis and normal function have lower longitudinal strain and twist angle. Short-term follow-up demonstrated improvement in clinical parameters and longitudinal strain despite of residual regional LV dysfunction.
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Affiliation(s)
- Marina Leitman
- Department of Cardiology, Assaf Harofeh Medical Center and Tel Aviv University, Tel Aviv, Israel.
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Moen CA, Salminen PR, Grong K, Matre K. Left ventricular strain, rotation, and torsion as markers of acute myocardial ischemia. Am J Physiol Heart Circ Physiol 2011; 300:H2142-54. [PMID: 21441314 DOI: 10.1152/ajpheart.01012.2010] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
This study investigates how tissue Doppler imaging (TDI) and speckle tracking echocardiography (STE) describe regional myocardial deformation during controlled reductions of left anterior descending (LAD) coronary artery perfusion pressure. In eight anesthetized pigs, a shunt with constrictor was installed from the brachiocephalic artery to the LAD. Data were obtained with open shunt, followed by four degrees of stenosis (S1-S4) of increasing severity: S1, ∼15%; S2, ∼35%; S3, ∼50%; and S4, ∼60% reductions of LAD perfusion pressure. At each situation, microspheres for perfusion measurements were injected and left ventricular (LV) short- and long-axis cineloops were recorded. In the anterior wall, radial, circumferential, and longitudinal one-layer STE strain, one-layer radial TDI strain, and three-layer radial TDI and STE strain were measured. LV peak mean rotation was measured at six equidistant levels from apex to base (in 7 pigs). LV torsion was calculated from end-systolic mean rotation. With open shunt, three-layer TDI analysis showed a transmural strain gradient with no perfusion gradient. Perfusion, one-layer TDI strain, and strain in the mid- and subendocardium from three-layer TDI were reduced at S2 (P < 0.05). STE strain was not affected until S3 (P < 0.05). Peak mean rotation, increasing toward the apex, decreased at the three apical levels at S4 (P < 0.05). LV torsion did not decrease (P = 0.26). In conclusion, TDI strain detected dysfunction already with minor changes in global hemodynamics, whereas STE strain was first reduced with moderate changes. LV peak mean rotation was not reduced until severe reduction of LAD perfusion pressure, but remained increasingly counterclockwise toward the apex. LV torsion remained unaffected by ischemia.
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Affiliation(s)
- Christian Arvei Moen
- Institute of Medicine, Univ. of Bergen, Haukeland Univ. Hospital, NO-5021 Bergen, Norway .
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Toumanidis ST, Plastiras S, Tsirikos N, Kottis G, Kaladaridou A, Trikka CO, Pamboucas C, Stamatelopoulos SF, Moulopoulos SD. Effect of early changes in functional geometry of left ventricular contraction on the development of ventricular fibrillation during acute myocardial ischaemia. An experimental study. Resuscitation 2011; 82:207-12. [DOI: 10.1016/j.resuscitation.2010.10.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2010] [Revised: 09/13/2010] [Accepted: 10/04/2010] [Indexed: 10/18/2022]
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Peteiro J, Bouzas-Mosquera A. Exercise echocardiography. World J Cardiol 2010; 2:223-32. [PMID: 21160588 PMCID: PMC2998822 DOI: 10.4330/wjc.v2.i8.223] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2010] [Revised: 08/01/2010] [Accepted: 08/08/2010] [Indexed: 02/06/2023] Open
Abstract
Exercise echocardiography has been used for 30 years. It is now considered a consolidated technique for the diagnosis and risk stratification of patients with known or suspected coronary artery disease (CAD). Of the stress echocardiography techniques, it represents the first choice for patients who are able to exercise. Given that the cost-effectiveness and safety of stress echocardiography are higher than those of other imaging techniques, its use is likely to be expanded further. Recent research has also proposed this technique for the evaluation of cardiac pathology beyond CAD. Although the role of new technology is promising, the assessment of cardiac function relies on good quality black and white harmonic images.
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Affiliation(s)
- Jesus Peteiro
- Jesus Peteiro, Alberto Bouzas-Mosquera, Laboratory of Echocardiography, Department of Cardiology, Complejo Hospitalario Universitario de A Coruña, 15011-A Coruña, Spain
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Nucifora G, Marsan NA, Bertini M, Delgado V, Siebelink HMJ, van Werkhoven JM, Scholte AJ, Schalij MJ, van der Wall EE, Holman ER, Bax JJ. Reduced Left Ventricular Torsion Early After Myocardial Infarction Is Related to Left Ventricular Remodeling. Circ Cardiovasc Imaging 2010; 3:433-42. [DOI: 10.1161/circimaging.109.926196] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Gaetano Nucifora
- From the Department of Cardiology (G.N., N.A.M., M.B., V.D., H.-M.J.S., J.M.v.W., A.J.S., M.J.S., E.E.v.d.W., E.R.H., J.J.B.), Leiden University Medical Center, Leiden, the Netherlands; Department of Cardiopulmonary Sciences (G.N.), University Hospital Santa Maria della Misericordia, Udine, Italy; and the Interuniversity Cardiology Institute of the Netherlands (E.E.v.d.W.), Utrecht, the Netherlands
| | - Nina Ajmone Marsan
- From the Department of Cardiology (G.N., N.A.M., M.B., V.D., H.-M.J.S., J.M.v.W., A.J.S., M.J.S., E.E.v.d.W., E.R.H., J.J.B.), Leiden University Medical Center, Leiden, the Netherlands; Department of Cardiopulmonary Sciences (G.N.), University Hospital Santa Maria della Misericordia, Udine, Italy; and the Interuniversity Cardiology Institute of the Netherlands (E.E.v.d.W.), Utrecht, the Netherlands
| | - Matteo Bertini
- From the Department of Cardiology (G.N., N.A.M., M.B., V.D., H.-M.J.S., J.M.v.W., A.J.S., M.J.S., E.E.v.d.W., E.R.H., J.J.B.), Leiden University Medical Center, Leiden, the Netherlands; Department of Cardiopulmonary Sciences (G.N.), University Hospital Santa Maria della Misericordia, Udine, Italy; and the Interuniversity Cardiology Institute of the Netherlands (E.E.v.d.W.), Utrecht, the Netherlands
| | - Victoria Delgado
- From the Department of Cardiology (G.N., N.A.M., M.B., V.D., H.-M.J.S., J.M.v.W., A.J.S., M.J.S., E.E.v.d.W., E.R.H., J.J.B.), Leiden University Medical Center, Leiden, the Netherlands; Department of Cardiopulmonary Sciences (G.N.), University Hospital Santa Maria della Misericordia, Udine, Italy; and the Interuniversity Cardiology Institute of the Netherlands (E.E.v.d.W.), Utrecht, the Netherlands
| | - Hans-Marc J. Siebelink
- From the Department of Cardiology (G.N., N.A.M., M.B., V.D., H.-M.J.S., J.M.v.W., A.J.S., M.J.S., E.E.v.d.W., E.R.H., J.J.B.), Leiden University Medical Center, Leiden, the Netherlands; Department of Cardiopulmonary Sciences (G.N.), University Hospital Santa Maria della Misericordia, Udine, Italy; and the Interuniversity Cardiology Institute of the Netherlands (E.E.v.d.W.), Utrecht, the Netherlands
| | - Jacob M. van Werkhoven
- From the Department of Cardiology (G.N., N.A.M., M.B., V.D., H.-M.J.S., J.M.v.W., A.J.S., M.J.S., E.E.v.d.W., E.R.H., J.J.B.), Leiden University Medical Center, Leiden, the Netherlands; Department of Cardiopulmonary Sciences (G.N.), University Hospital Santa Maria della Misericordia, Udine, Italy; and the Interuniversity Cardiology Institute of the Netherlands (E.E.v.d.W.), Utrecht, the Netherlands
| | - Arthur J. Scholte
- From the Department of Cardiology (G.N., N.A.M., M.B., V.D., H.-M.J.S., J.M.v.W., A.J.S., M.J.S., E.E.v.d.W., E.R.H., J.J.B.), Leiden University Medical Center, Leiden, the Netherlands; Department of Cardiopulmonary Sciences (G.N.), University Hospital Santa Maria della Misericordia, Udine, Italy; and the Interuniversity Cardiology Institute of the Netherlands (E.E.v.d.W.), Utrecht, the Netherlands
| | - Martin J. Schalij
- From the Department of Cardiology (G.N., N.A.M., M.B., V.D., H.-M.J.S., J.M.v.W., A.J.S., M.J.S., E.E.v.d.W., E.R.H., J.J.B.), Leiden University Medical Center, Leiden, the Netherlands; Department of Cardiopulmonary Sciences (G.N.), University Hospital Santa Maria della Misericordia, Udine, Italy; and the Interuniversity Cardiology Institute of the Netherlands (E.E.v.d.W.), Utrecht, the Netherlands
| | - Ernst E. van der Wall
- From the Department of Cardiology (G.N., N.A.M., M.B., V.D., H.-M.J.S., J.M.v.W., A.J.S., M.J.S., E.E.v.d.W., E.R.H., J.J.B.), Leiden University Medical Center, Leiden, the Netherlands; Department of Cardiopulmonary Sciences (G.N.), University Hospital Santa Maria della Misericordia, Udine, Italy; and the Interuniversity Cardiology Institute of the Netherlands (E.E.v.d.W.), Utrecht, the Netherlands
| | - Eduard R. Holman
- From the Department of Cardiology (G.N., N.A.M., M.B., V.D., H.-M.J.S., J.M.v.W., A.J.S., M.J.S., E.E.v.d.W., E.R.H., J.J.B.), Leiden University Medical Center, Leiden, the Netherlands; Department of Cardiopulmonary Sciences (G.N.), University Hospital Santa Maria della Misericordia, Udine, Italy; and the Interuniversity Cardiology Institute of the Netherlands (E.E.v.d.W.), Utrecht, the Netherlands
| | - Jeroen J. Bax
- From the Department of Cardiology (G.N., N.A.M., M.B., V.D., H.-M.J.S., J.M.v.W., A.J.S., M.J.S., E.E.v.d.W., E.R.H., J.J.B.), Leiden University Medical Center, Leiden, the Netherlands; Department of Cardiopulmonary Sciences (G.N.), University Hospital Santa Maria della Misericordia, Udine, Italy; and the Interuniversity Cardiology Institute of the Netherlands (E.E.v.d.W.), Utrecht, the Netherlands
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Frank LH, Yu Q, Francis R, Tian X, Samtani R, Sahn DJ, Leatherbury L, Lo CW. Ventricular rotation is independent of cardiac looping: a study in mice with situs inversus totalis using speckle-tracking echocardiography. J Am Soc Echocardiogr 2010; 23:315-23. [PMID: 20097527 DOI: 10.1016/j.echo.2009.11.024] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2009] [Indexed: 11/17/2022]
Abstract
BACKGROUND The authors conducted an ultrasound interrogation of a mutant mouse model with a Dnah5 mutation to determine whether cardiac mechanics may be affected by reversal of cardiac situs. This mutant is a bona fide model of primary ciliary dyskinesia, with surviving homozygous mice showing either situs solitus (SS) or situs inversus totalis (SI). METHODS High-frequency ultrasound interrogations of 27 neonatal and infant Dnah5 mutant mice, 16 with SS and 11 with SI, were conducted using an ultra-high-frequency biomicroscope. Electrocardiographic and respiratory gating were used to reconstruct high-resolution two-dimensional cines at 1,000 Hz, with speckle-tracking echocardiography used to further analyze midchamber and apical rotation. RESULTS All SS mice exhibited the expected counterclockwise apical rotation as viewed caudocranially, and surprisingly, the same counterclockwise motion was also observed in SI mice. Speckle-tracking analysis confirmed counterclockwise systolic rotation in both SS and SI mice, and this increased in magnitude from the subepicardium to the endocardium and from the papillary muscles to the apex. The magnitude of apical endocardial rotation was not different for SS and SI mice (5.64+/-0.75 degrees and 5.76+/-1.90 degrees, respectively, P=.93). The anatomic segments responsible for the largest components of apical endocardial systolic rotation differed between the SS and SI hearts (P=.004). In both, the two largest contributors to rotation were offset 180 degrees from each other, but the anatomic regions differed between them. In SS hearts, maximal regional rotation occurred at the anterior mid-septum and posterolateral free wall, while in SI hearts, it was derived from the posterior septum and the anterolateral free wall. Analysis by episcopic fluorescence image capture histology of representative SI and SS mice showed normal intracardiac and segmental anatomy ({S,D,S} or {I,L,I}) without intracardiac defects. CONCLUSIONS These results show that mirror-image cardiac looping did not result in mirror-image rotation of the morphologic left ventricle. These findings suggest that further studies are warranted to evaluate whether fiber orientation and cardiac mechanics may be abnormal in individuals with reversal of cardiac situs. The results of this study indicate that cardiac looping and myofiber orientation may be independently regulated.
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Affiliation(s)
- Lowell H Frank
- Laboratory of Developmental Biology, Office of Biostatistics Research, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA.
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Govind SC, Gadiyaram VK, Quintana M, Ramesh SS, Saha S. Study of Left Ventricular Rotation and Torsion in the Acute Phase of ST-Elevation Myocardial Infarction by Speckle Tracking Echocardiography. Echocardiography 2010; 27:45-9. [DOI: 10.1111/j.1540-8175.2009.00971.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Remme EW, Hoff L, Halvorsen PS, Naerum E, Skulstad H, Fleischer LA, Elle OJ, Fosse E. Validation of cardiac accelerometer sensor measurements. Physiol Meas 2009; 30:1429-44. [PMID: 19907074 DOI: 10.1088/0967-3334/30/12/010] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
In this study we have investigated the accuracy of an accelerometer sensor designed for the measurement of cardiac motion and automatic detection of motion abnormalities caused by myocardial ischaemia. The accelerometer, attached to the left ventricular wall, changed its orientation relative to the direction of gravity during the cardiac cycle. This caused a varying gravity component in the measured acceleration signal that introduced an error in the calculation of myocardial motion. Circumferential displacement, velocity and rotation of the left ventricular apical region were calculated from the measured acceleration signal. We developed a mathematical method to separate translational and gravitational acceleration components based on a priori assumptions of myocardial motion. The accuracy of the measured motion was investigated by comparison with known motion of a robot arm programmed to move like the heart wall. The accuracy was also investigated in an animal study. The sensor measurements were compared with simultaneously recorded motion from a robot arm attached next to the sensor on the heart and with measured motion by echocardiography and a video camera. The developed compensation method for the varying gravity component improved the accuracy of the calculated velocity and displacement traces, giving very good agreement with the reference methods.
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Affiliation(s)
- Espen W Remme
- The Interventional Centre, Oslo University Hospital, Rikshospitalet, Oslo, Norway.
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Assessment of left ventricular torsion using speckle tracking echocardiography. CURRENT CARDIOVASCULAR IMAGING REPORTS 2009. [DOI: 10.1007/s12410-009-0045-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Song JK. How does the left ventricle work? Ventricular rotation as a new index of cardiac performance. Korean Circ J 2009; 39:347-51. [PMID: 19949617 PMCID: PMC2771832 DOI: 10.4070/kcj.2009.39.9.347] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Although simple cylindrical or ellipsoidal left ventricular (LV) geometry with transverse or circumferential muscle contraction has been traditionally used to estimate LV performance, the estimated LV ejection fraction (EF) with muscle fiber shortening up to 20% is less than 50% of maximum, which is lower than the normal EF observed in routine clinical practice. Thus, oblique fiber orientation and LV rotation, in addition to radial thickening and longitudinal shortening, is predicted as an essential component of effective LV pumping. This was confirmed by animal experiments using surgically implanted markers or invasive sonomicrometry. Demonstration of the muscle band extending from the pulmonary artery to the aorta, which connects the ventricular myocardium, both right ventricle and LV as a continuous band (muscle band theory) provides an anatomical backbone of helical configuration of the cardiac muscle band with descending and ascending segments wrapping the LV apex. Moreover, sequential, non-simultaneous, activation and contraction of the helicoids muscle band contributes to LV rotation or twist motion. Recently, magnetic resonance imaging and speckle tracking echocardiography (STE) techniques have provided an excellent noninvasive way to measure LV rotation and twist, which is expected to contribute to a more thorough evaluation of both LV systolic and diastolic function. Initial animal experiments showed that quantification of apical rotation or LV twist using STE is more accurate for estimating LV systolic function than conventional EF under a variety of LV inotropic conditions, irrespective of coronary ligation. As de-rotation or the untwisting rate can also be measured by STE, the role of ventricular untwisting as a temporal link between LV relaxation and suction can be addressed. Further clinical investigations are needed to determine the real clinical impact of these new indices of LV mechanical function.
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Affiliation(s)
- Jae-Kwan Song
- Division of Cardiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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Rüssel IK, Götte MJW, Bronzwaer JG, Knaapen P, Paulus WJ, van Rossum AC. Left ventricular torsion: an expanding role in the analysis of myocardial dysfunction. JACC Cardiovasc Imaging 2009; 2:648-55. [PMID: 19442954 DOI: 10.1016/j.jcmg.2009.03.001] [Citation(s) in RCA: 131] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2008] [Revised: 02/09/2009] [Accepted: 03/09/2009] [Indexed: 12/17/2022]
Abstract
During left ventricular (LV) torsion, the base rotates in an overall clockwise direction and the apex rotates in a counterclockwise direction when viewed from apex to base. LV torsion is followed by rapid untwisting, which contributes to ventricular filling. Because LV torsion is directly related to fiber orientation, it might depict subclinical abnormalities in heart function. Recently, ultrasound speckle tracking was introduced for quantification of LV torsion. This fast, widely available technique may contribute to a more rapid introduction of LV torsion as a clinical tool for detection of myocardial dysfunction. However, knowledge of the exact function and structure of the heart is fundamental for understanding the value of LV torsion. LV torsion has been investigated with different measurement methods during the past 2 decades, using cardiac magnetic resonance as the gold standard. The results obtained over the years are helpful for developing a standardized method to quantify LV torsion and have facilitated the interpretation and value of LV torsion before it can be used as a clinical tool.
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Affiliation(s)
- Iris K Rüssel
- Department of Physics and Medical Technology, VU University Medical Center, Amsterdam, the Netherlands.
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