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Borja MG, Martinez-Legazpi P, Nguyen C, Flores O, Kahn AM, Bermejo J, Del Álamo JC. Deriving phenotype-representative left ventricular flow patterns by reduced-order modeling and classification. Comput Biol Med 2024; 179:108760. [PMID: 38944903 DOI: 10.1016/j.compbiomed.2024.108760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 06/12/2024] [Accepted: 06/13/2024] [Indexed: 07/02/2024]
Abstract
BACKGROUND Extracting phenotype-representative flow patterns and their associated numerical metrics is a bottleneck in the clinical translation of advanced cardiac flow imaging modalities. We hypothesized that reduced-order models (ROMs) are a suitable strategy for deriving simple and interpretable clinical metrics of intraventricular flow suitable for further assessments. Combined with machine learning (ML) flow-based ROMs could provide new insight to help diagnose and risk-stratify patients. METHODS We analyzed 2D color-Doppler echocardiograms of 81 non-ischemic dilated cardiomyopathy (DCM) patients, 51 hypertrophic cardiomyopathy (HCM) patients, and 77 normal volunteers (Control). We applied proper orthogonal decomposition (POD) to build patient-specific and cohort-specific ROMs of LV flow. Each ROM aggregates a low number of components representing a spatially dependent velocity map modulated along the cardiac cycle by a time-dependent coefficient. We tested three classifiers using deliberately simple ML analyses of these ROMs with varying supervision levels. In supervised models, hyperparameter grid search was used to derive the ROMs that maximize classification power. The classifiers were blinded to LV chamber geometry and function. We ran vector flow mapping on the color-Doppler sequences to help visualize flow patterns and interpret the ML results. RESULTS POD-based ROMs stably represented each cohort through 10-fold cross-validation. The principal POD mode captured >80 % of the flow kinetic energy (KE) in all cohorts and represented the LV filling/emptying jets. Mode 2 represented the diastolic vortex and its KE contribution ranged from <1 % (HCM) to 13 % (DCM). Semi-unsupervised classification using patient-specific ROMs revealed that the KE ratio of these two principal modes, the vortex-to-jet (V2J) energy ratio, is a simple, interpretable metric that discriminates DCM, HCM, and Control patients. Receiver operating characteristic curves using V2J as classifier had areas under the curve of 0.81, 0.91, and 0.95 for distinguishing HCM vs. Control, DCM vs. Control, and DCM vs. HCM, respectively. CONCLUSIONS Modal decomposition of cardiac flow can be used to create ROMs of normal and pathological flow patterns, uncovering simple interpretable flow metrics with power to discriminate disease states, and particularly suitable for further processing using ML.
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Affiliation(s)
- María Guadalupe Borja
- Department of Mechanical and Aerospace Engineering, University of California San Diego, La Jolla, CA, USA
| | - Pablo Martinez-Legazpi
- Department of Mathematical Physics and Fluids, Facultad de Ciencias, Universidad Nacional de Educación a Distancia, UNED and CIBERCV, Madrid, Spain
| | - Cathleen Nguyen
- Department of Mechanical Engineering, University of Washington, Seattle, WA, USA
| | - Oscar Flores
- Department of Aerospace Engineering, Universidad Carlos III de Madrid, Leganés, Spain
| | - Andrew M Kahn
- Division of Cardiovascular Medicine, University of California San Diego, La Jolla, CA, USA
| | - Javier Bermejo
- Department of Cardiology, Hospital General Universitario Gregorio Marañón, Facultad de Medicina, Universidad Complutense de Madrid, Instituto de Investigación Sanitaria Gregorio Marañón and CIBERCV, Madrid, Spain
| | - Juan C Del Álamo
- Department of Mechanical and Aerospace Engineering, University of California San Diego, La Jolla, CA, USA; Department of Mechanical Engineering, University of Washington, Seattle, WA, USA; Center for Cardiovascular Biology, University of Washington, Seattle, WA, USA; Division of Cardiology, University of Washington, Seattle, WA, USA.
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Deshmukh T, Selvakumar D, Thavapalachandran S, Archer O, Figtree GA, Feneley M, Grieve SM, Thomas L, Pathan F, Chong JJH. Correlation of Noninvasive Cardiac MRI Measures of Left Ventricular Myocardial Function and Invasive Pressure-Volume Parameters in a Porcine Ischemia-Reperfusion Model. Radiol Cardiothorac Imaging 2024; 6:e230252. [PMID: 38842454 PMCID: PMC11211950 DOI: 10.1148/ryct.230252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 03/24/2024] [Accepted: 05/03/2024] [Indexed: 06/07/2024]
Abstract
Purpose To assess the correlation between noninvasive cardiac MRI-derived parameters with pressure-volume (PV) loop data and evaluate changes in left ventricular function after myocardial infarction (MI). Materials and Methods Sixteen adult female swine were induced with MI, with six swine used as controls and 10 receiving platelet-derived growth factor-AB (PDGF-AB). Load-independent measures of cardiac function, including slopes of end-systolic pressure-volume relationship (ESPVR) and preload recruitable stroke work (PRSW), were obtained on day 28 after MI. Cardiac MRI was performed on day 2 and day 28 after infarct. Global longitudinal strain (GLS) and global circumferential strain (GCS) were measured. Ventriculo-arterial coupling (VAC) was derived from PV loop and cardiac MRI data. Pearson correlation analysis was performed. Results GCS (r = 0.60, P = .01), left ventricular ejection fraction (LVEF) (r = 0.60, P = .01), and cardiac MRI-derived VAC (r = 0.61, P = .01) had a significant linear relationship with ESPVR. GCS (r = 0.75, P < .001) had the strongest significant linear relationship with PRSW, followed by LVEF (r = 0.67, P = .005) and cardiac MRI-derived VAC (r = 0.60, P = .01). GLS was not significantly correlated with ESPVR or PRSW. There was a linear correlation (r = 0.82, P < .001) between VAC derived from cardiac MRI and from PV loop data. GCS (-3.5% ± 2.3 vs 0.5% ± 1.4, P = .007) and cardiac MRI-derived VAC (-0.6 ± 0.6 vs 0.3 ± 0.3, P = .001) significantly improved in the animals treated with PDGF-AB 28 days after MI compared with controls. Conclusion Cardiac MRI-derived parameters of MI correlated with invasive PV measures, with GCS showing the strongest correlation. Cardiac MRI-derived measures also demonstrated utility in assessing therapeutic benefit using PDGF-AB. Keywords: Cardiac MRI, Myocardial Infarction, Pressure Volume Loop, Strain Imaging, Ventriculo-arterial Coupling Supplemental material is available for this article. © RSNA, 2024.
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Affiliation(s)
- Tejas Deshmukh
- From the Centre for Heart Research, Westmead Institute for Medical
Research, 176 Hawkesbury Rd, Westmead, Sydney, NSW 2145, Australia (T.D., D.S.,
S.T., J.J.H.C.); Department of Cardiology, Westmead Hospital, Westmead,
Australia (T.D., D.S., S.T., O.A., L.T., J.J.H.C.); Sydney School of Health
Sciences, Faculty of Medicine and Health, University of Sydney, Sydney,
Australia (T.D., D.S., S.T., L.T., J.J.H.C.); Cardiovascular Discovery Group,
Kolling Institute, University of Sydney and Royal North Shore Hospital, St
Leonards, Sydney, Australia (G.A.F.); Department of Cardiology, St
Vincent’s Hospital, Darlinghurst, Australia (M.F.); Cardiac Mechanics
Laboratory, Victor Chang Cardiac Research Institute, Darlinghurst, Australia
(M.F.); Imaging and Phenotyping Laboratory, Faculty of Medicine and Health,
Charles Perkins Centre, University of Sydney, Sydney, Australia (S.M.G.);
Department of Radiology, Royal Prince Alfred Hospital, Camperdown, Australia
(S.M.G.); Nepean Clinical School of Medicine, Charles Perkin Centre Nepean,
University of Sydney, Kingswood, Australia (F.P.); and Department of Cardiology,
Nepean Hospital, Kingswood, Australia (F.P.)
| | - Dinesh Selvakumar
- From the Centre for Heart Research, Westmead Institute for Medical
Research, 176 Hawkesbury Rd, Westmead, Sydney, NSW 2145, Australia (T.D., D.S.,
S.T., J.J.H.C.); Department of Cardiology, Westmead Hospital, Westmead,
Australia (T.D., D.S., S.T., O.A., L.T., J.J.H.C.); Sydney School of Health
Sciences, Faculty of Medicine and Health, University of Sydney, Sydney,
Australia (T.D., D.S., S.T., L.T., J.J.H.C.); Cardiovascular Discovery Group,
Kolling Institute, University of Sydney and Royal North Shore Hospital, St
Leonards, Sydney, Australia (G.A.F.); Department of Cardiology, St
Vincent’s Hospital, Darlinghurst, Australia (M.F.); Cardiac Mechanics
Laboratory, Victor Chang Cardiac Research Institute, Darlinghurst, Australia
(M.F.); Imaging and Phenotyping Laboratory, Faculty of Medicine and Health,
Charles Perkins Centre, University of Sydney, Sydney, Australia (S.M.G.);
Department of Radiology, Royal Prince Alfred Hospital, Camperdown, Australia
(S.M.G.); Nepean Clinical School of Medicine, Charles Perkin Centre Nepean,
University of Sydney, Kingswood, Australia (F.P.); and Department of Cardiology,
Nepean Hospital, Kingswood, Australia (F.P.)
| | - Sujitha Thavapalachandran
- From the Centre for Heart Research, Westmead Institute for Medical
Research, 176 Hawkesbury Rd, Westmead, Sydney, NSW 2145, Australia (T.D., D.S.,
S.T., J.J.H.C.); Department of Cardiology, Westmead Hospital, Westmead,
Australia (T.D., D.S., S.T., O.A., L.T., J.J.H.C.); Sydney School of Health
Sciences, Faculty of Medicine and Health, University of Sydney, Sydney,
Australia (T.D., D.S., S.T., L.T., J.J.H.C.); Cardiovascular Discovery Group,
Kolling Institute, University of Sydney and Royal North Shore Hospital, St
Leonards, Sydney, Australia (G.A.F.); Department of Cardiology, St
Vincent’s Hospital, Darlinghurst, Australia (M.F.); Cardiac Mechanics
Laboratory, Victor Chang Cardiac Research Institute, Darlinghurst, Australia
(M.F.); Imaging and Phenotyping Laboratory, Faculty of Medicine and Health,
Charles Perkins Centre, University of Sydney, Sydney, Australia (S.M.G.);
Department of Radiology, Royal Prince Alfred Hospital, Camperdown, Australia
(S.M.G.); Nepean Clinical School of Medicine, Charles Perkin Centre Nepean,
University of Sydney, Kingswood, Australia (F.P.); and Department of Cardiology,
Nepean Hospital, Kingswood, Australia (F.P.)
| | - Oliver Archer
- From the Centre for Heart Research, Westmead Institute for Medical
Research, 176 Hawkesbury Rd, Westmead, Sydney, NSW 2145, Australia (T.D., D.S.,
S.T., J.J.H.C.); Department of Cardiology, Westmead Hospital, Westmead,
Australia (T.D., D.S., S.T., O.A., L.T., J.J.H.C.); Sydney School of Health
Sciences, Faculty of Medicine and Health, University of Sydney, Sydney,
Australia (T.D., D.S., S.T., L.T., J.J.H.C.); Cardiovascular Discovery Group,
Kolling Institute, University of Sydney and Royal North Shore Hospital, St
Leonards, Sydney, Australia (G.A.F.); Department of Cardiology, St
Vincent’s Hospital, Darlinghurst, Australia (M.F.); Cardiac Mechanics
Laboratory, Victor Chang Cardiac Research Institute, Darlinghurst, Australia
(M.F.); Imaging and Phenotyping Laboratory, Faculty of Medicine and Health,
Charles Perkins Centre, University of Sydney, Sydney, Australia (S.M.G.);
Department of Radiology, Royal Prince Alfred Hospital, Camperdown, Australia
(S.M.G.); Nepean Clinical School of Medicine, Charles Perkin Centre Nepean,
University of Sydney, Kingswood, Australia (F.P.); and Department of Cardiology,
Nepean Hospital, Kingswood, Australia (F.P.)
| | - Gemma A. Figtree
- From the Centre for Heart Research, Westmead Institute for Medical
Research, 176 Hawkesbury Rd, Westmead, Sydney, NSW 2145, Australia (T.D., D.S.,
S.T., J.J.H.C.); Department of Cardiology, Westmead Hospital, Westmead,
Australia (T.D., D.S., S.T., O.A., L.T., J.J.H.C.); Sydney School of Health
Sciences, Faculty of Medicine and Health, University of Sydney, Sydney,
Australia (T.D., D.S., S.T., L.T., J.J.H.C.); Cardiovascular Discovery Group,
Kolling Institute, University of Sydney and Royal North Shore Hospital, St
Leonards, Sydney, Australia (G.A.F.); Department of Cardiology, St
Vincent’s Hospital, Darlinghurst, Australia (M.F.); Cardiac Mechanics
Laboratory, Victor Chang Cardiac Research Institute, Darlinghurst, Australia
(M.F.); Imaging and Phenotyping Laboratory, Faculty of Medicine and Health,
Charles Perkins Centre, University of Sydney, Sydney, Australia (S.M.G.);
Department of Radiology, Royal Prince Alfred Hospital, Camperdown, Australia
(S.M.G.); Nepean Clinical School of Medicine, Charles Perkin Centre Nepean,
University of Sydney, Kingswood, Australia (F.P.); and Department of Cardiology,
Nepean Hospital, Kingswood, Australia (F.P.)
| | - Michael Feneley
- From the Centre for Heart Research, Westmead Institute for Medical
Research, 176 Hawkesbury Rd, Westmead, Sydney, NSW 2145, Australia (T.D., D.S.,
S.T., J.J.H.C.); Department of Cardiology, Westmead Hospital, Westmead,
Australia (T.D., D.S., S.T., O.A., L.T., J.J.H.C.); Sydney School of Health
Sciences, Faculty of Medicine and Health, University of Sydney, Sydney,
Australia (T.D., D.S., S.T., L.T., J.J.H.C.); Cardiovascular Discovery Group,
Kolling Institute, University of Sydney and Royal North Shore Hospital, St
Leonards, Sydney, Australia (G.A.F.); Department of Cardiology, St
Vincent’s Hospital, Darlinghurst, Australia (M.F.); Cardiac Mechanics
Laboratory, Victor Chang Cardiac Research Institute, Darlinghurst, Australia
(M.F.); Imaging and Phenotyping Laboratory, Faculty of Medicine and Health,
Charles Perkins Centre, University of Sydney, Sydney, Australia (S.M.G.);
Department of Radiology, Royal Prince Alfred Hospital, Camperdown, Australia
(S.M.G.); Nepean Clinical School of Medicine, Charles Perkin Centre Nepean,
University of Sydney, Kingswood, Australia (F.P.); and Department of Cardiology,
Nepean Hospital, Kingswood, Australia (F.P.)
| | - Stuart M. Grieve
- From the Centre for Heart Research, Westmead Institute for Medical
Research, 176 Hawkesbury Rd, Westmead, Sydney, NSW 2145, Australia (T.D., D.S.,
S.T., J.J.H.C.); Department of Cardiology, Westmead Hospital, Westmead,
Australia (T.D., D.S., S.T., O.A., L.T., J.J.H.C.); Sydney School of Health
Sciences, Faculty of Medicine and Health, University of Sydney, Sydney,
Australia (T.D., D.S., S.T., L.T., J.J.H.C.); Cardiovascular Discovery Group,
Kolling Institute, University of Sydney and Royal North Shore Hospital, St
Leonards, Sydney, Australia (G.A.F.); Department of Cardiology, St
Vincent’s Hospital, Darlinghurst, Australia (M.F.); Cardiac Mechanics
Laboratory, Victor Chang Cardiac Research Institute, Darlinghurst, Australia
(M.F.); Imaging and Phenotyping Laboratory, Faculty of Medicine and Health,
Charles Perkins Centre, University of Sydney, Sydney, Australia (S.M.G.);
Department of Radiology, Royal Prince Alfred Hospital, Camperdown, Australia
(S.M.G.); Nepean Clinical School of Medicine, Charles Perkin Centre Nepean,
University of Sydney, Kingswood, Australia (F.P.); and Department of Cardiology,
Nepean Hospital, Kingswood, Australia (F.P.)
| | - Liza Thomas
- From the Centre for Heart Research, Westmead Institute for Medical
Research, 176 Hawkesbury Rd, Westmead, Sydney, NSW 2145, Australia (T.D., D.S.,
S.T., J.J.H.C.); Department of Cardiology, Westmead Hospital, Westmead,
Australia (T.D., D.S., S.T., O.A., L.T., J.J.H.C.); Sydney School of Health
Sciences, Faculty of Medicine and Health, University of Sydney, Sydney,
Australia (T.D., D.S., S.T., L.T., J.J.H.C.); Cardiovascular Discovery Group,
Kolling Institute, University of Sydney and Royal North Shore Hospital, St
Leonards, Sydney, Australia (G.A.F.); Department of Cardiology, St
Vincent’s Hospital, Darlinghurst, Australia (M.F.); Cardiac Mechanics
Laboratory, Victor Chang Cardiac Research Institute, Darlinghurst, Australia
(M.F.); Imaging and Phenotyping Laboratory, Faculty of Medicine and Health,
Charles Perkins Centre, University of Sydney, Sydney, Australia (S.M.G.);
Department of Radiology, Royal Prince Alfred Hospital, Camperdown, Australia
(S.M.G.); Nepean Clinical School of Medicine, Charles Perkin Centre Nepean,
University of Sydney, Kingswood, Australia (F.P.); and Department of Cardiology,
Nepean Hospital, Kingswood, Australia (F.P.)
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Møller S, Wiese S, Barløse M, Hove JD. How non-alcoholic fatty liver disease and cirrhosis affect the heart. Hepatol Int 2023; 17:1333-1349. [PMID: 37770804 DOI: 10.1007/s12072-023-10590-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 08/29/2023] [Indexed: 09/30/2023]
Abstract
Liver diseases affect the heart and the vascular system. Cardiovascular complications appear to be a leading cause of death in patients with non-alcoholic fatty liver disease (NAFLD) and cirrhosis. The predominant histological changes in the liver range from steatosis to fibrosis to cirrhosis, which can each affect the cardiovascular system differently. Patients with cirrhotic cardiomyopathy (CCM) and NAFLD are at increased risk of impaired systolic and diastolic dysfunction and for suffering major cardiovascular events. However, the pathophysiological mechanisms behind these risks differ depending on the nature of the liver disease. Accurate assessment of symptoms by contemporary diagnostic modalities is essential for identifying patients at risk, for evaluating candidates for treatment, and prior to any invasive procedures. This review explores current perspectives within this field.
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Affiliation(s)
- Søren Møller
- Department Clinical Physiology and Nuclear Medicine 260, Center for Functional and Diagnostic Imaging and Research, Hvidovre Hospital, Copenhagen University Hospital, Kettegaards alle 30, 2650, Hvidovre, Denmark.
- Department of Clinical Medicine, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark.
| | - Signe Wiese
- Gastro Unit, Medical Division, Hvidovre Hospital, Hvidovre, Denmark
| | - Mads Barløse
- Department Clinical Physiology and Nuclear Medicine 260, Center for Functional and Diagnostic Imaging and Research, Hvidovre Hospital, Copenhagen University Hospital, Kettegaards alle 30, 2650, Hvidovre, Denmark
| | - Jens D Hove
- Department of Clinical Medicine, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
- Department of Cardiology, Hvidovre Hospital, Hvidovre, Denmark
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Borja MG, Martinez-Legazpi P, Nguyen C, Flores O, Kahn AM, Bermejo J, del Álamo JC. Deriving Explainable Metrics of Left Ventricular Flow by Reduced-Order Modeling and Classification. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2023:2023.10.03.23296524. [PMID: 37873442 PMCID: PMC10593009 DOI: 10.1101/2023.10.03.23296524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2023]
Abstract
Background Extracting explainable flow metrics is a bottleneck to the clinical translation of advanced cardiac flow imaging modalities. We hypothesized that reduced-order models (ROMs) of intraventricular flow are a suitable strategy for deriving simple and interpretable clinical metrics suitable for further assessments. Combined with machine learning (ML) flow-based ROMs could provide new insight to help diagnose and risk-stratify patients. Methods We analyzed 2D color-Doppler echocardiograms of 81 non-ischemic dilated cardiomyopathy (DCM) patients, 51 hypertrophic cardiomyopathy (HCM) patients, and 77 normal volunteers (Control). We applied proper orthogonal decomposition (POD) to build patient-specific and cohort-specific ROMs of LV flow. Each ROM aggregates a low number of components representing a spatially dependent velocity map modulated along the cardiac cycle by a time-dependent coefficient. We tested three classifiers using deliberately simple ML analyses of these ROMs with varying supervision levels. In supervised models, hyperparameter gridsearch was used to derive the ROMs that maximize classification power. The classifiers were blinded to LV chamber geometry and function. We ran vector flow mapping on the color-Doppler sequences to help visualize flow patterns and interpret the ML results. Results POD-based ROMs stably represented each cohort through 10-fold cross-validation. The principal POD mode captured >80% of the flow kinetic energy (KE) in all cohorts and represented the LV filling/emptying jets. Mode 2 represented the diastolic vortex and its KE contribution ranged from <1% (HCM) to 13% (DCM). Semi-unsupervised classification using patient-specific ROMs revealed that the KE ratio of these two principal modes, the vortex-to-jet (V2J) energy ratio, is a simple, interpretable metric that discriminates DCM, HCM, and Control patients. Receiver operating characteristic curves using V2J as classifier had areas under the curve of 0.81, 0.91, and 0.95 for distinguishing HCM vs. Control, DCM vs. Control, and DCM vs. HCM, respectively. Conclusions Modal decomposition of cardiac flow can be used to create ROMs of normal and pathological flow patterns, uncovering simple interpretable flow metrics with power to discriminate disease states, and particularly suitable for further processing using ML.
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Affiliation(s)
- María Guadalupe Borja
- Department of Mechanical and Aerospace Engineering, University of California San Diego, La Jolla, CA
| | - Pablo Martinez-Legazpi
- Department of Mathematical Physics and Fluids, Facultad de Ciencias, Universidad Nacional de Educación a Distancia, UNED and CIBERCV, Madrid, Spain
| | - Cathleen Nguyen
- Mechanical Engineering Department; University of Washington, Seattle, WA
| | - Oscar Flores
- Department of Aerospace Engineering, Universidad Carlos III de Madrid, Leganés, Spain
| | - Andrew M. Kahn
- Division of Cardiovascular Medicine, University of California San Diego, La Jolla, CA
| | - Javier Bermejo
- Department of Cardiology, Hospital General Universitario Gregorio Marañón; Facultad de Medicina, Universidad Complutense de Madrid, Instituto de Investigación Sanitaria Gregorio Marañón and CIBERCV, Madrid, Spain
| | - Juan C. del Álamo
- Department of Mechanical and Aerospace Engineering, University of California San Diego, La Jolla, CA
- Mechanical Engineering Department; University of Washington, Seattle, WA
- Center for Cardiovascular Biology; University of Washington, Seattle, WA
- Division of Cardiology, University of Washington, Seattle, WA
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Paysal J, Merlin E, Rochette E, Terral D, Nottin S. Impact of BMI z-score on left ventricular mechanics in adolescent girls. Front Pediatr 2023; 11:1165851. [PMID: 37565247 PMCID: PMC10410149 DOI: 10.3389/fped.2023.1165851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 07/12/2023] [Indexed: 08/12/2023] Open
Abstract
Background Adolescent weight disorders ranging from anorexia nervosa (AN) to obesity (OB) can impact the heart by causing opposite alterations in its morphology, suggesting a direct impact of body mass index (BMI) on the heart. Cardiac function is relatively preserved as assessed by standard echocardiography. However, few studies have used 2D speckle-tracking echocardiography (2D-STE), which can detect subtle alterations of left ventricular (LV) function by evaluating deformations. This study aimed to assess the link between the BMI z-score of adolescent girls and myocardial function. Methods Ninety-one adolescent girls comprising 26 AN patients (age 14.6 ± 1.9 years), 28 OB patients (age 13.2 ± 1.4 years), and 37 controls (age 14.0 ± 2.0 years) underwent 2D-STE to assess LV morphology and myocardial global and regional deformations. Results The BMI z-score of our population ranged from -4.6 to 5.2. LV morphological remodeling was significantly and positively correlated with the BMI z-score (R2 = 0.456, p < 0.0001 for LV mass). Global longitudinal strain (LS) and regional LS recorded at the mid and apical levels were significantly correlated with the BMI z-score (R2 = 0.196, p = 0.0001 and R2 = 0.274, p < 0.0001, respectively, for apical and medial LS). Circumferential strains and twisting mechanics were not correlated with the BMI z-score. Fibrinogen and systolic blood pressure were the main variables explaining the alteration of LS. Conclusion We observed that the BMI z-score had an impact on LV mechanics, especially on medial and apical LS. Neither circumferential nor twisting mechanics were altered by the BMI z-score in adolescent girls.
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Affiliation(s)
- Justine Paysal
- LaPEC UPR 4278, Laboratory of Cardiovascular Physiology, Avignon University, Avignon, France
- Néonatologie et Réanimation Pédiatrique, CHU Clermont-Ferrand, Clermont-Ferrand, France
| | - Etienne Merlin
- CHU Clermont-Ferrand, Department of Pediatrics, Clermont-Ferrand, France
- INSERM, CIC 1405, Unité CRECHE, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Emmanuelle Rochette
- CHU Clermont-Ferrand, Department of Pediatrics, Clermont-Ferrand, France
- INSERM, CIC 1405, Unité CRECHE, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Daniel Terral
- CHU Clermont-Ferrand, Department of Pediatrics, Clermont-Ferrand, France
| | - Stéphane Nottin
- LaPEC UPR 4278, Laboratory of Cardiovascular Physiology, Avignon University, Avignon, France
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Kerkhof PLM, Bell-Beringer JY, Diaz-Navarro RA, K-J Li J, Handly N. Ventricular Ejection Fraction and Global Strains in Connection with the Volume Regulation Graph. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2023; 2023:1-4. [PMID: 38083425 DOI: 10.1109/embc40787.2023.10339941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2023]
Abstract
Ejection fraction (EF) is traditionally considered useful to infer ventricular function. Newer metrics such as global function index (GFI) and various strains add supplemental diagnostic or prognostic value. All these candidates refer to dimensionless ratios, rather than to the characteristics of the underlying components. Therefore, we introduced the volume regulation graph (VRG), relating end-systolic volume (ESV) to end-diastolic volume (EDV). An individual patient is then uniquely defined by the prevailing working point in the volume domain. Alternatively, the combination of EF=(1-ESV/EDV) and any suitable companion (denoted as C) metric (e.g. the Pythagorean mean) specifies this working point.An expression relates EF to global longitudinal (GLS) and circumferential strain (GCS): ESV/EDV = (GLS+1) (GCS+1)2, resembling the empirical regression equation for the VRG. However, the latter has a non-zero intercept (mL). The discrepancy can be solved by the introduction of one or more pertinent companion metrics.We studied 96 patients by cardiac magnetic resonance imaging and calculated EF, EFC, GFI, GLS and GCS. The GFI is inversely related to GLS (R2=0.26). For regression we found: ESV=0.74 EDV-27.0 with R2=0.81 for N=96. Similar results were obtained for echocardiography data (N=25). Graphs relating EF to GLS and GCS indicate that EFC can distinguish patients with nearly identical values for these 3 metrics.Thus, the VRG offers a unifying framework that visualizes the association between ESV and EDV, while documenting iso-EF and iso-EFC trajectories. Newer metrics including GFI, GLS and GCS require consideration of a companion variable such as EFC to permit a comprehensive analysis.Clinical Relevance- The VRG allows insight into ventricular functioning and illustrates the working point concept. Companion metrics (having a physical dimension) should be considered in conjunction with any traditional ratio-based index.
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Cioffi G, Battiston R, Mancusi C, Di Lenarda A, Faganello G, Aurigemma GP, Tarantini L, Pulignano G, Cioffi V, de Simone G. Prognostic Stratification of Clinically Stable Patients with Heart Failure by Echocardiographic Pressure/Volume Loop Model. J Am Soc Echocardiogr 2023; 36:746-759. [PMID: 36791831 DOI: 10.1016/j.echo.2023.02.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Revised: 01/08/2023] [Accepted: 02/05/2023] [Indexed: 02/16/2023]
Abstract
BACKGROUND Pressure/volume (P/V) loops provide useful information on left ventricular performance and prognosis in patients with heart failure (HF) but do not lend themselves to routine clinical practice. The authors developed a noninvasive method to compute individualized P/V loops to predict adverse clinical outcomes in patients with stable HF, which the authors believe can be used clinically. METHODS A derivation cohort (n = 443 patients) was used to develop an echocardiography P/V loop model, using brachial arterial pressure and trans-thoracic two-dimensional Doppler echocardiographic data. Each patient's P/V loop was depicted as an irregular pentagon, and a centroid was derived for each loop. The centroid distance (CD) from a reference centroid (derived from 101 healthy control subjects) was computed. This model was prospectively applied to 435 patients who constituted the validation cohort. The study end point was a composite of cardiac death or hospitalization for HF among study patients. RESULTS In the derivation cohort, CD was threefold greater among patients who experienced adverse events than those who did not. During a follow-up period of 30 months (15-45 months), event rates were 35% (72 of 206 patients) and 12% (29 of 237 patients P < .001), respectively, among patients with CD > 33 mL/mm Hg and those with CD ≤33 mL/mm Hg (prognostic cutoff derived by receiver operating characteristic analysis). Multivariate Cox analysis identified CD as an independent predictor of adverse outcome (hazard ratio, 1.61; 95% CI, 1.03-2.50) independently of left ventricular end-diastolic volume, pulmonary capillary wedge pressure, and left ventricular ejection fraction. These conclusions were confirmed in the validation cohort. CONCLUSIONS The authors propose a method to create a noninvasive P/V loop and its centroid. These data provide useful pathophysiologic and prognostic information in patients with HF.
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Affiliation(s)
- Giovanni Cioffi
- Cardiac Rehabilitation Centre, San Pancrazio Hospital, Trento, Italy; Rheumatology Section, Department of Internal Medicine, University of Verona and Azienda Ospedaliera Universitaria Integrata of Verona, Verona, Italy.
| | - Roberto Battiston
- Department of Experimental Physics, University of Trento, Trento, Italy
| | - Costantino Mancusi
- Department of Advanced Biomedical Sciences, Federico II University Hospital, Naples, Italy
| | | | | | - Gerard P Aurigemma
- Division of Cardiovascular Medicine, Department of Medicine, UMass Chan Medical School, Worcester, Massachusetts
| | | | - Giovanni Pulignano
- Department of Cardiology, Azienda Ospedaliera San Camillo Forlanini, Rome, Italy
| | - Viola Cioffi
- Department of Experimental Physics, University of Trento, Trento, Italy
| | - Giovanni de Simone
- Department of Advanced Biomedical Sciences, Federico II University Hospital, Naples, Italy
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8
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Zheng AS, Yu HX. Value of clinical applications of differential pressure and relative pressure imaging in the left ventricle. World J Clin Cases 2023; 11:3967-3975. [PMID: 37388805 PMCID: PMC10303603 DOI: 10.12998/wjcc.v11.i17.3967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 04/15/2023] [Accepted: 05/06/2023] [Indexed: 06/12/2023] Open
Abstract
Regional pressure differences between sites within the left ventricular cavity have long been identified, and the potential clinical value of diastolic and systolic intraventricular pressure differences (IVPDs) is of increasing interest. This study concluded that the IVPD plays an important role in ventricular filling and emptying and is a reliable indicator of ventricular relaxation, elastic recoil, diastolic pumping, and effective left ventricular filling. Relative pressure imaging, as a novel and potentially clinically applicable measure of left IVPDs, enables early and more comprehensive identification of the temporal and spatial characteristics of IVPD. In the future, as research related to relative pressure imaging continues, this measurement method has the possibility to become more refined and serve as an additional clinical aid that can replace the gold standard cardiac catheterization technique for the diagnosis of diastolic dysfunction.
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Affiliation(s)
- An-Sheng Zheng
- Department of Ultrasound Medicine, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou 450002, Henan Province, China
| | - Hong-Xia Yu
- Department of Ultrasound Medicine, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou 450002, Henan Province, China
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9
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Quinio L, Taconne M, Le Rolle V, Curtis L, Auffret V, Boulmier D, Leurent G, Le Breton H, Galli E, Oger E, Donal E. Evolution of non-invasive myocardial work variables after transcatheter aortic valve implantation in patients with severe aortic stenosis. Arch Cardiovasc Dis 2023; 116:192-201. [PMID: 36925338 DOI: 10.1016/j.acvd.2023.01.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Revised: 01/18/2023] [Accepted: 01/20/2023] [Indexed: 03/06/2023]
Abstract
INTRODUCTION Guidelines recommend aortic valve replacement in patients with severe aortic stenosis who present with symptoms or left ventricular ejection fraction<50%, both conditions representing a late stage of the disease. Whereas global longitudinal strain is load dependent, but interesting for assessing prognosis, myocardial work has emerged. AIM To evaluate acute changes in myocardial work occurring in patients undergoing transcatheter aortic valve implantation (TAVI). METHODS Patients who underwent TAVI were evaluated before and after by echocardiography. Complete echocardiographies were considered. Myocardial work indices (global work index, global constructive work, global work efficiency, global wasted work) were calculated integrating mean transaortic pressure gradient and brachial cuff systolic pressure. RESULTS One hundred and twenty-five patients underwent successful TAVI, with a significant decrease in mean transaortic gradient (from 52.5±16.1 to 12.2±5.0; P<0.0001). There was no significant change in left ventricular ejection fraction after TAVI. Myocardial work data after TAVI showed a significant reduction in global work index (1389±537 vs. 2014±714; P<0.0001), global constructive work (1693±543 vs. 2379±761; P<0.0001) and global work efficiency (85.0±7.06 vs. 87.1±5.98; P=0.0034). The decrease in global work index and global constructive work after TAVI was homogeneous among different subgroups, based on global longitudinal strain, left ventricular ejection fraction and New York Heart Association status before TAVI. We observed a significant association between global work index and global constructive work before TAVI, and global longitudinal strain degradation after TAVI. CONCLUSIONS Myocardial work variables show promising potential in best understanding the left ventricular myocardial consequences of aortic stenosis and its correction. Given their ability to discriminate between New York Heart Association status and global longitudinal strain evolution, we can hypothesize about their clinical value.
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Affiliation(s)
- Louis Quinio
- University of Rennes, CHU Rennes, Inserm, LTSI - UMR 1099, 35000 Rennes, France
| | - Marion Taconne
- University of Rennes, CHU Rennes, Inserm, LTSI - UMR 1099, 35000 Rennes, France
| | - Virginie Le Rolle
- University of Rennes, CHU Rennes, Inserm, LTSI - UMR 1099, 35000 Rennes, France
| | - Libby Curtis
- University of Rennes, CHU Rennes, Inserm, LTSI - UMR 1099, 35000 Rennes, France
| | - Vincent Auffret
- University of Rennes, CHU Rennes, Inserm, LTSI - UMR 1099, 35000 Rennes, France
| | - Dominique Boulmier
- University of Rennes, CHU Rennes, Inserm, LTSI - UMR 1099, 35000 Rennes, France
| | - Guillaume Leurent
- University of Rennes, CHU Rennes, Inserm, LTSI - UMR 1099, 35000 Rennes, France
| | - Hervé Le Breton
- University of Rennes, CHU Rennes, Inserm, LTSI - UMR 1099, 35000 Rennes, France
| | - Elena Galli
- University of Rennes, CHU Rennes, Inserm, LTSI - UMR 1099, 35000 Rennes, France
| | - Emmanuel Oger
- Clinical Section, Fundamental and Clinical Pharmacology, CHU Rennes, University of Rennes, 35043 Rennes, France
| | - Erwan Donal
- University of Rennes, CHU Rennes, Inserm, LTSI - UMR 1099, 35000 Rennes, France.
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10
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Kerkhof PLM, Handly N. In search for the optimal ventricular systolic dysfunction metric that associates with reduced exercise capacity. JOURNAL OF CLINICAL ULTRASOUND : JCU 2023; 51:16-19. [PMID: 36468342 DOI: 10.1002/jcu.23262] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 06/16/2022] [Indexed: 06/17/2023]
Affiliation(s)
- Peter L M Kerkhof
- Department of Radiology and Nuclear Medicine, Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - Neal Handly
- Department of Emergency Medicine, Drexel University College of Medicine, Philadelphia, Pennsylvania, USA
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11
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Prognostic implications of systolic function in patients with cirrhosis. GASTROENTEROLOGÍA Y HEPATOLOGÍA 2022; 46:446-454. [DOI: 10.1016/j.gastrohep.2022.10.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 09/15/2022] [Accepted: 10/10/2022] [Indexed: 11/09/2022]
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12
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Bernhard B, Grogg H, Zurkirchen J, Demirel C, Hagemeyer D, Okuno T, Brugger N, De Marchi S, Huber AT, Berto MB, Spano G, Stortecky S, Windecker S, Pilgrim T, Gräni C. Reproducibility of 4D cardiac computed tomography feature tracking myocardial strain and comparison against speckle-tracking echocardiography in patients with severe aortic stenosis. J Cardiovasc Comput Tomogr 2022; 16:309-318. [DOI: 10.1016/j.jcct.2022.01.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 01/20/2022] [Accepted: 01/22/2022] [Indexed: 10/19/2022]
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13
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Kim D, Yang JH. Authors' Reply. J Am Soc Echocardiogr 2021; 35:135-136. [PMID: 34742904 DOI: 10.1016/j.echo.2021.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 10/31/2021] [Accepted: 11/01/2021] [Indexed: 10/19/2022]
Affiliation(s)
- Darae Kim
- Division of Cardiology, Department of Medicine, Heart Vascular Stroke Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jeong Hoon Yang
- Division of Cardiology, Department of Medicine, Heart Vascular Stroke Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea; Department of Critical Care Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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14
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Sato T, Ambale-Venkatesh B, Zimmerman SL, Tedford RJ, Hsu S, Chamera E, Fujii T, Mullin CJ, Mercurio V, Khair R, Corona-Villalobos CP, Simpson CE, Damico RL, Kolb TM, Mathai SC, Lima JA, Kass DA, Tsujino I, Hassoun PM. Right ventricular function as assessed by cardiac magnetic resonance imaging-derived strain parameters compared to high-fidelity micromanometer catheter measurements. Pulm Circ 2021; 11:20458940211032529. [PMID: 34603686 PMCID: PMC8481729 DOI: 10.1177/20458940211032529] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 06/17/2021] [Indexed: 11/16/2022] Open
Abstract
Right ventricular function has prognostic significance in patients with pulmonary hypertension. We evaluated whether cardiac magnetic resonance-derived strain and strain rate parameters could reliably reflect right ventricular systolic and diastolic function in precapillary pulmonary hypertension. End-systolic elastance and the time constant of right ventricular relaxation tau, both derived from invasive high-fidelity micromanometer catheter measurements, were used as gold standards for assessing systolic and diastolic right ventricular function, respectively. Nineteen consecutive precapillary pulmonary hypertension patients underwent cardiac magnetic resonance and right heart catheterization prospectively. Cardiac magnetic resonance data were compared with those of 19 control subjects. In pulmonary hypertension patients, associations between strain- and strain rate-related parameters and invasive hemodynamic parameters were evaluated. Longitudinal peak systolic strain, strain rate, and early diastolic strain rate were lower in PAH patients than in controls; peak atrial-diastolic strain rate was higher in pulmonary hypertension patients. Similarly, circumferential peak systolic strain rate was lower and peak atrial-diastolic strain rate was higher in pulmonary hypertension. In pulmonary hypertension, no correlations existed between cardiac magnetic resonance-derived and hemodynamically derived measures of systolic right ventricular function. Regarding diastolic parameters, tau was significantly correlated with peak longitudinal atrial-diastolic strain rate (r = -0.61), deceleration time (r = 0.75), longitudinal systolic to diastolic time ratio (r = 0.59), early diastolic strain rate (r = -0.5), circumferential peak atrial-diastolic strain rate (r = -0.52), and deceleration time (r = 0.62). Strain analysis of the right ventricular diastolic phase is a reliable non-invasive method for detecting right ventricular diastolic dysfunction in PAH.
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Affiliation(s)
- Takahiro Sato
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Bharath Ambale-Venkatesh
- Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Stefan L. Zimmerman
- Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Ryan J. Tedford
- Division of Cardiology, Department of Medicine, Medical University of South Carolina, Charleston, SC, USA
| | - Steven Hsu
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Ela Chamera
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Tomoki Fujii
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | | | - Valentina Mercurio
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Rubina Khair
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Celia P. Corona-Villalobos
- Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Catherine E. Simpson
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Rachel L. Damico
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Todd M. Kolb
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Stephen C. Mathai
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Joao A.C. Lima
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - David A. Kass
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Ichizo Tsujino
- First Department of Medicine, Hokkaido University Hospital, Sapporo, Japan
| | - Paul M. Hassoun
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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15
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Vollema EM, Amanullah MR, Prihadi EA, Ng ACT, van der Bijl P, Sin YK, Ajmone Marsan N, Ding ZP, Généreux P, Leon MB, Ewe SH, Delgado V, Bax JJ. Incremental value of left ventricular global longitudinal strain in a newly proposed staging classification based on cardiac damage in patients with severe aortic stenosis. Eur Heart J Cardiovasc Imaging 2021; 21:1248-1258. [PMID: 32851408 DOI: 10.1093/ehjci/jeaa220] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Accepted: 07/16/2020] [Indexed: 11/14/2022] Open
Abstract
AIMS Cardiac damage in severe aortic stenosis (AS) can be classified according to a recently proposed staging classification. The present study investigated the incremental prognostic value of left ventricular (LV) global longitudinal strain (GLS) over stages of cardiac damage in patients with severe AS. METHODS AND RESULTS From an ongoing registry, a total of 616 severe symptomatic AS patients with available LV GLS by speckle tracking echocardiography were selected and retrospectively analysed. Patients were categorized according to cardiac damage on echocardiography: Stage 0 (no damage), Stage 1 (LV damage), Stage 2 (mitral valve or left atrial damage), Stage 3 (tricuspid valve or pulmonary artery vasculature damage), or Stage 4 (right ventricular damage). LV GLS was divided by quintiles and assigned to the different stages. The endpoint was all-cause mortality. Over a median follow-up of 44 [24-89] months, 234 (38%) patients died. LV GLS was associated with all-cause mortality independent of stage of cardiac damage. After incorporation of LV GLS by quintiles into the staging classification, Stages 2-4 were independently associated with outcome. LV GLS showed incremental prognostic value over clinical characteristics and stages of cardiac damage. CONCLUSION In this large single-centre cohort of severe AS patients, incorporation of LV GLS by quintiles in a novel proposed staging classification resulted in refinement of risk stratification by identifying patients with more advanced cardiac damage. LV GLS was shown to provide incremental prognostic value over the originally proposed staging classification.
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Affiliation(s)
- E Mara Vollema
- Department of Cardiology, Leiden University Medical Center, Leiden, The Netherlands
| | | | - Edgard A Prihadi
- Department of Cardiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Arnold C T Ng
- Department of Cardiology, Princess Alexandra Hospital, University of Queensland, Brisbane, Australia
| | - Pieter van der Bijl
- Department of Cardiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Yoong Kong Sin
- Department of Cardiothoracic Surgery, National Heart Centre Singapore, Singapore
| | - Nina Ajmone Marsan
- Department of Cardiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Zee Pin Ding
- Department of Cardiology, National Heart Centre Singapore, Singapore
| | - Philippe Généreux
- Clinical Trials Center, Cardiovascular Research Foundation, New York, NY, USA.,Gagnon Cardiovascular Institute, Morristown Medical Center, Morristown, NJ, USA.,Hôpital du Sacré-Coeur de Montréal, Université de Montréal, Montréal, Quebec, Canada
| | - Martin B Leon
- Clinical Trials Center, Cardiovascular Research Foundation, New York, NY, USA.,New York-Presbyterian Hospital/Columbia University, Medical Center, New York, NY, USA
| | - See Hooi Ewe
- Department of Cardiology, National Heart Centre Singapore, Singapore
| | - Victoria Delgado
- Department of Cardiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Jeroen J Bax
- Department of Cardiology, Leiden University Medical Center, Leiden, The Netherlands
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16
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Thevenot T, Mouhat B, Cervoni JP, Chopard R. The dual role of non-selective beta-blockers in cirrhotic patients: How do we know when Dr Jekyll turns into Mr Hyde? Liver Int 2021; 41:1166-1167. [PMID: 33342043 DOI: 10.1111/liv.14770] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
Affiliation(s)
- Thierry Thevenot
- Department of Hepatology, University Hospital Besançon, Besançon, France.,EA 4266 "Pathogens and inflammation, EPILAB", Université Bourgogne - Franche Comte, UFR SMP, Besançon, France
| | - Basile Mouhat
- Department of Cardiology, University Hospital Besançon, Besançon, France
| | - Jean-Paul Cervoni
- Department of Hepatology, University Hospital Besançon, Besançon, France
| | - Romain Chopard
- Department of Cardiology, University Hospital Besançon, Besançon, France.,EA3920, University of Burgundy Franche-Comté, Besançon, France
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17
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Wright SP, Cheyne WS, Gelinas JC, Harper MI, Sasso JP, Eves ND. Systolic reserve maintains left ventricular-vascular coupling when challenged by adverse breathing mechanics and hypertension in healthy adults. J Appl Physiol (1985) 2021; 130:1171-1182. [PMID: 33571052 DOI: 10.1152/japplphysiol.00833.2020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Augmented negative intrathoracic pressures (nITP) and dynamic hyperinflation (DH) are adverse breathing mechanics (ABM) associated with chronic obstructive pulmonary disease (COPD) that attenuate left ventricular (LV) preload and augment afterload. In COPD, hypertension (elevated systemic arterial load) commonly adds additional afterload to the LV. Combined ABM and hypertension may profoundly challenge ventricular-vascular coupling and attenuate stroke volume (SV), particularly if LV systolic reserve is limited. However, even in the healthy heart, the combined impact of ABM and systemic arterial loading on LV function and ventricular-vascular coupling has not been fully elucidated. Healthy volunteers (10 M/9 F, 24 ± 3 yr old) were challenged with mild (-10 cmH2O nITP and 25% DH) and severe (-20 cmH2O nITP and 100% DH) ABM, without and with postexercise ischemia (PEI) at each severity. LV SV, chamber geometry, end-systolic elastance (Ees), arterial elastance (Ea), and ventricular-vascular coupling (Ees:Ea) were quantified using echocardiography. Compared with resting control (58 ± 13 mL), SV decreased during mild ABM (51 ± 13 mL), mild ABM + PEI (51 ± 11 mL), severe ABM (50 ± 12 mL), and severe ABM + PEI (47 ± 11 mL) (P < 0.001); similar trends were observed for LV end-diastolic volume. The end-diastolic radius of septal curvature increased, indicating direct ventricular interaction, during severe ABM and severe ABM + PEI (P < 0.001). Compared with control (1.99 ± 0.41 mmHg/mL), Ea increased progressively with mild ABM (2.21 ± 0.47 mmHg/mL) and severe ABM (2.50 ± 0.56 mmHg/mL); at each severity, Ea was greater with superimposed PEI (P < 0.001). However, well-matched Ees increases occurred, and Ees:Ea was unchanged throughout. ABM pose a challenge to ventricular-vascular coupling that is accentuated by superimposed PEI; however, in healthy younger adults, the LV has substantial systolic reserve to maintain coupling.NEW & NOTEWORTHY In healthy younger adults, combined dynamic hyperinflation (DH) and negative intrathoracic pressures (nITP) attenuate left ventricular filling, but through different mechanisms at different severities. DH and nITP contribute to increased left ventricular afterload through mechanical effects in addition to presumed reflexive regulation, which can be further increased by elevated arterial loading. However, within this demographic, the left ventricle has substantial reserve to increase systolic performance, which matches contractility to afterload to preserve stroke volume.
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Affiliation(s)
- S P Wright
- Centre for Heart, Lung and Vascular Health, School of Health and Exercise Sciences, University of British Columbia, Kelowna, British Columbia, Canada
| | - W S Cheyne
- Centre for Heart, Lung and Vascular Health, School of Health and Exercise Sciences, University of British Columbia, Kelowna, British Columbia, Canada
| | - J C Gelinas
- Centre for Heart, Lung and Vascular Health, School of Health and Exercise Sciences, University of British Columbia, Kelowna, British Columbia, Canada
| | - M I Harper
- Centre for Heart, Lung and Vascular Health, School of Health and Exercise Sciences, University of British Columbia, Kelowna, British Columbia, Canada
| | - J P Sasso
- Centre for Heart, Lung and Vascular Health, School of Health and Exercise Sciences, University of British Columbia, Kelowna, British Columbia, Canada
| | - N D Eves
- Centre for Heart, Lung and Vascular Health, School of Health and Exercise Sciences, University of British Columbia, Kelowna, British Columbia, Canada
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18
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Haji K, Marwick TH. Clinical Utility of Echocardiographic Strain and Strain Rate Measurements. Curr Cardiol Rep 2021; 23:18. [PMID: 33594493 DOI: 10.1007/s11886-021-01444-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/08/2021] [Indexed: 01/28/2023]
Abstract
PURPOSE OF REVIEW Assessment of left ventricular function is pivotal in many decisions, but ejection fraction has fundamental limitations for assessment of mild dysfunction, and especially for repeated assessments. Myocardial deformation imaging using speckle-tracking is widely available on modern echocardiography systems, and is now feasible as a clinical, rather than purely a research tool. Strain can be measured in all cardiac chambers, most commonly as a systolic parameter, although it can be measured in diastole. Generally, speckle tracking is more effective at measuring strain than strain-rate, which requires a higher temporal resolution. The purpose of this review is to help clinicians understand the main situations where strain provides incremental value to standard echocardiographic measurements. RECENT FINDINGS The normal range of LV global longitudinal strain (GLS) has now been defined as -18% and lower (ie more negative), abnormal as -16% or higher (ie less negative), with -16 to -18% being borderline. The variation between different vendors is now small for global parameters, but regional strain measurement remains unreliable - and therefore its use for stress echocardiography remains problematic. The most valuable indications for measuring strain are subclinical LV dysfunction (eg., GLS in HFpEF, stage B heart failure, aortic stenosis, mitral regurgitation), RV dysfunction (RV strain in pulmonary hypertension), atrial fibrillation (LA strain) and sequential follow-up (cardiotoxicity). Strain measurements have clinical utility in a number of settings and should be considered as part of the standard echocardiogram.
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Affiliation(s)
- Kawa Haji
- Baker Heart and Diabetes Institute, PO Box 6492, Melbourne, Victoria, 3004, Australia.,Cardiology Department, Western Health, Melbourne, Australia.,Departments of Cardiometabolic Health and Medicine, University of Melbourne, Melbourne, Australia
| | - Thomas H Marwick
- Baker Heart and Diabetes Institute, PO Box 6492, Melbourne, Victoria, 3004, Australia. .,Cardiology Department, Western Health, Melbourne, Australia. .,Departments of Cardiometabolic Health and Medicine, University of Melbourne, Melbourne, Australia.
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19
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Linden K, Winkler C, Breuer J, Herberg U. Assessment of pressure-volume relations in univentricular hearts: Comparison of obtainment by real-time 3D echocardiography and mini pressure-wire with conductance technology. PLoS One 2021; 16:e0246031. [PMID: 33524066 PMCID: PMC7850469 DOI: 10.1371/journal.pone.0246031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 01/12/2021] [Indexed: 11/18/2022] Open
Abstract
Objectives The gold standard to obtain pressure-volume relations (PVR) of the heart, the conductance technology (PVRCond), is rarely used in children. PVR can also be obtained by 3D-echocardiography volume data combined with simultaneously measured pressure data by a mini pressure-wire (PVR3DE). We sought to investigate the feasibility of both methods in patients with univentricular hearts and to compare them, including hemodynamic changes. Methods We studied 19 patients (age 2–29 years). PVR3DE and PVRCond were assessed under baseline conditions and stimulation with dobutamine. Results Obtaining PVR3DE was successful in all patients. Obtaining PVRCond was possible in 15 patients during baseline (79%) and in 12 patients under dobutamine (63%). Both methods showed that end-systolic elastance (Ees) and arterial elastance (Ea) increased under dobutamine and that Tau showed a statistically significant decrease. Intraclass correlation (95% confidence interval) showed moderate to good agreement between methods: Ees: 0.873 (0.711–0.945), Ea: 0.709 (0.336–0.873), Tau: 0.867 (0.697–0.942). Bland-Altman analyses showed an acceptable bias with wider limits of agreement: Ees: 1.63 mmHg/ml (-3.83–7.08 mmHg/ml), Ea: 0.53 mmHg/ml (-5.23–6.28 mmHg/ml), Tau: -0,76 ms (-10.73–9.21 ms). Conclusion Changes of PVR-specific parameters under dobutamine stimulation were reflected in the same way by both methods. However, the absolute values for these parameters could vary between methods and, therefore, methods are not interchangeable. Obtaining PVR3DE in a single ventricle was easier, faster and more successful than PVRCond. PVR3DE provides a promising and needed alternative to the conductance technology for the assessment of cardiac function in univentricular hearts.
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Affiliation(s)
- Katharina Linden
- Department of Pediatric Cardiology, Children’s Hospital, University Hospital Bonn, Bonn, Germany
- * E-mail:
| | - Christian Winkler
- Department of Pediatric Cardiology, Children’s Hospital, University Hospital Bonn, Bonn, Germany
| | - Johannes Breuer
- Department of Pediatric Cardiology, Children’s Hospital, University Hospital Bonn, Bonn, Germany
| | - Ulrike Herberg
- Department of Pediatric Cardiology, Children’s Hospital, University Hospital Bonn, Bonn, Germany
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20
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Ripoll C, Zipprich A. Open or closed window: That is the question. J Hepatol 2021; 74:485-486. [PMID: 33308874 DOI: 10.1016/j.jhep.2020.09.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 09/22/2020] [Indexed: 12/04/2022]
Affiliation(s)
- Cristina Ripoll
- First Department for Internal Medicine, Martin-Luther University Halle-Wittenberg, Halle (Saale), Germany.
| | - Alexander Zipprich
- First Department for Internal Medicine, Martin-Luther University Halle-Wittenberg, Halle (Saale), Germany
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21
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Téllez L, Ibáñez-Samaniego L, Pérez Del Villar C, Yotti R, Martínez J, Carrión L, Rodríguez de Santiago E, Rivera M, González-Mansilla A, Pastor Ó, Bermejo J, Bañares R, Albillos A. Non-selective beta-blockers impair global circulatory homeostasis and renal function in cirrhotic patients with refractory ascites. J Hepatol 2020; 73:1404-1414. [PMID: 32446716 DOI: 10.1016/j.jhep.2020.05.011] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 04/27/2020] [Accepted: 05/07/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND & AIMS The safety of non-selective β-blockers (NSBBs) has been questioned in refractory ascites (RA). We studied the effects of NSBBs on cardiac systolic function, systemic hemodynamics, and renal perfusion pressure (RPP) and function in patients with diuretic-responsive ascites (DRA) and RA. METHODS We performed a prospective pre-post repeated-measures study in cirrhotic patients, 18 with DRA and 20 with RA on NSBBs for variceal bleeding prophylaxis. Systolic function (by ejection intraventricular pressure difference [EIVPD]), hepatic venous pressure gradient (HVPG), cardiopulmonary pressures, RPP, and sympathetic activation were measured at baseline and after 4 weeks of propranolol. RESULTS EIVPD was elevated at baseline (RA 4.5 [2.8-5.7] and DRA 4.2 [3.1-5.7] mmHg; normal 2.4-3.6 mmHg) and directly related to the severity of vasodilation and sympathetic activation. NSBBs led to similar reductions in heart rate and HVPG in both groups. NSBBs reduced EIPVD in RA but not in DRA (-20% vs. -2%, p <0.01). In RA, the NSBB-induced reduction in EIPVD correlated with the severity of vasodilation and with higher plasma nitric oxide, norepinephrine and IL-6 (r >0.40, all p <0.05). NSBBs reduced RPP in both groups, but impaired renal function only in patients with RA. Reduced EIPVD correlated with decreases in RPP and estimated glomerular filtration rate (r >0.40, all p <0.01). After NSBB treatment, RPP dropped below the threshold of renal flow autoregulation in 11 of the 20 (55%) patients with RA, including the 4 fulfilling the criteria for HRS-AKI. CONCLUSION Renal perfusion and function depend critically on systolic function and sympathetic hyperactivation in RA. NSBBs blunt the sympathetic overdrive, hamper cardiac output, lower RPP below the critical threshold and impair renal function. β-blockade should be used cautiously or even avoided in patients with RA. LAY SUMMARY We have identified the mechanisms by which non-selective beta-blockers could impair survival in patients with refractory ascites. We show that peripheral vasodilation and sympathetic activation lead to increased left ventricle systolic function in patients with cirrhosis and ascites, which acts as an adaptive mechanism to maintain renal perfusion. When ascites becomes refractory, this compensatory cardiac response to vasodilation is critically dependent on sympathetic hyperactivation and is hardly able to maintain renal perfusion. In this setting, β-blockade blunts the sympathetic overdrive of cardiac function, hampers cardiac output, lowers renal perfusion pressure below the critical threshold and impairs renal function.
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Affiliation(s)
- Luis Téllez
- Department of Gastroenterology and Hepatology, Hospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), CIBEREHD, Universidad de Alcalá, Madrid, Spain
| | - Luis Ibáñez-Samaniego
- Department of Digestive Diseases, Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón (iISGM), CIBEREHD, and Facultad de Medicina, Universidad Complutense de Madrid, Madrid, Spain
| | - Candelas Pérez Del Villar
- Department of Cardiology, Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón (iISGM), CIBERCV, and Facultad de Medicina, Universidad Complutense de Madrid, Madrid, Spain
| | - Raquel Yotti
- Department of Cardiology, Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón (iISGM), CIBERCV, and Facultad de Medicina, Universidad Complutense de Madrid, Madrid, Spain
| | - Javier Martínez
- Department of Gastroenterology and Hepatology, Hospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), CIBEREHD, Universidad de Alcalá, Madrid, Spain
| | - Laura Carrión
- Department of Digestive Diseases, Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón (iISGM), CIBEREHD, and Facultad de Medicina, Universidad Complutense de Madrid, Madrid, Spain
| | - Enrique Rodríguez de Santiago
- Department of Gastroenterology and Hepatology, Hospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), CIBEREHD, Universidad de Alcalá, Madrid, Spain
| | - Maite Rivera
- Department of Nephrology, Hospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Universidad de Alcalá, Madrid, Spain
| | - Ana González-Mansilla
- Department of Cardiology, Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón (iISGM), CIBERCV, and Facultad de Medicina, Universidad Complutense de Madrid, Madrid, Spain
| | - Óscar Pastor
- Servicio de Bioquímica Clínica, Hospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), CIBEROBN, Universidad de Alcalá, Madrid, Spain
| | - Javier Bermejo
- Department of Cardiology, Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón (iISGM), CIBERCV, and Facultad de Medicina, Universidad Complutense de Madrid, Madrid, Spain
| | - Rafael Bañares
- Department of Digestive Diseases, Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón (iISGM), CIBEREHD, and Facultad de Medicina, Universidad Complutense de Madrid, Madrid, Spain
| | - Agustín Albillos
- Department of Gastroenterology and Hepatology, Hospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), CIBEREHD, Universidad de Alcalá, Madrid, Spain.
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22
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Faragli A, Tanacli R, Kolp C, Abawi D, Lapinskas T, Stehning C, Schnackenburg B, Lo Muzio FP, Fassina L, Pieske B, Nagel E, Post H, Kelle S, Alogna A. Cardiovascular magnetic resonance-derived left ventricular mechanics-strain, cardiac power and end-systolic elastance under various inotropic states in swine. J Cardiovasc Magn Reson 2020; 22:79. [PMID: 33256761 PMCID: PMC7708216 DOI: 10.1186/s12968-020-00679-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2019] [Accepted: 10/06/2020] [Indexed: 01/27/2023] Open
Abstract
BACKGROUND Cardiovascular magnetic resonance (CMR) strain imaging is an established technique to quantify myocardial deformation. However, to what extent left ventricular (LV) systolic strain, and therefore LV mechanics, reflects classical hemodynamic parameters under various inotropic states is still not completely clear. Therefore, the aim of this study was to investigate the correlation of LV global strain parameters measured via CMR feature tracking (CMR-FT, based on conventional cine balanced steady state free precession (bSSFP) images) with hemodynamic parameters such as cardiac index (CI), cardiac power output (CPO) and end-systolic elastance (Ees) under various inotropic states. METHODS Ten anaesthetized, healthy Landrace swine were acutely instrumented closed-chest and transported to the CMR facility for measurements. After baseline measurements, two steps were performed: (1) dobutamine-stress (Dobutamine) and (2) verapamil-induced cardiovascular depression (Verapamil). During each protocol, CMR images were acquired in the short axisand apical 2Ch, 3Ch and 4Ch views. MEDIS software was utilized to analyze global longitudinal (GLS), global circumferential (GCS), and global radial strain (GRS). RESULTS Dobutamine significantly increased heart rate, CI, CPO and Ees, while Verapamil decreased them. Absolute values of GLS, GCS and GRS accordingly increased during Dobutamine infusion, while GLS and GCS decreased during Verapamil. Linear regression analysis showed a moderate correlation between GLS, GCS and LV hemodynamic parameters, while GRS correlated poorly. Indexing global strain parameters for indirect measures of afterload, such as mean aortic pressure or wall stress, significantly improved these correlations, with GLS indexed for wall stress reflecting LV contractility as the clinically widespread LV ejection fraction. CONCLUSION GLS and GCS correlate accordingly with LV hemodynamics under various inotropic states in swine. Indexing strain parameters for indirect measures of afterload substantially improves this correlation, with GLS being as good as LV ejection fraction in reflecting LV contractility. CMR-FT-strain imaging may be a quick and promising tool to characterize LV hemodynamics in patients with varying degrees of LV dysfunction.
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Affiliation(s)
- A Faragli
- Department of Internal Medicine and Cardiology, Charité-Universitätsmedizin Berlin, Campus Virchow-Klinikum, Augustenburger Platz 1, 13353, Berlin, Germany
- Berlin Institute of Health (BIH), Berlin, Germany
- DZHK (German Centre for Cardiovascular Research), partner site, Berlin, Germany
- Department of Internal Medicine/Cardiology, Deutsches Herzzentrum Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
| | - R Tanacli
- Department of Internal Medicine and Cardiology, Charité-Universitätsmedizin Berlin, Campus Virchow-Klinikum, Augustenburger Platz 1, 13353, Berlin, Germany
- Department of Internal Medicine/Cardiology, Deutsches Herzzentrum Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
| | - C Kolp
- Department of Internal Medicine and Cardiology, Charité-Universitätsmedizin Berlin, Campus Virchow-Klinikum, Augustenburger Platz 1, 13353, Berlin, Germany
| | - D Abawi
- Department of Internal Medicine and Cardiology, Charité-Universitätsmedizin Berlin, Campus Virchow-Klinikum, Augustenburger Platz 1, 13353, Berlin, Germany
| | - T Lapinskas
- Department of Internal Medicine/Cardiology, Deutsches Herzzentrum Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
- Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, Eiveniu Street 2, 50161, Kaunas, Lithuania
| | - C Stehning
- Clinical Science, Philips Healthcare, Röntgenstr. 24, 22335, Hamburg, Germany
| | - B Schnackenburg
- Clinical Science, Philips Healthcare, Röntgenstr. 24, 22335, Hamburg, Germany
| | - F P Lo Muzio
- Department of Surgery, Dentistry, Paediatrics and Gynaecology, University of Verona, Via S. Francesco 22, 37129, Verona, Italy
- Department of Medicine and Surgery, University of Parma, Via Gramsci 14, 43126, Parma, Italy
| | - L Fassina
- Department of Electrical, Computer and Biomedical Engineering (DIII), Centre for Health Technologies (CHT), University of Pavia, Via Ferrata 5, 27100, Pavia, Italy
| | - B Pieske
- Department of Internal Medicine and Cardiology, Charité-Universitätsmedizin Berlin, Campus Virchow-Klinikum, Augustenburger Platz 1, 13353, Berlin, Germany
- Berlin Institute of Health (BIH), Berlin, Germany
- DZHK (German Centre for Cardiovascular Research), partner site, Berlin, Germany
- Department of Internal Medicine/Cardiology, Deutsches Herzzentrum Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
| | - E Nagel
- Institute of Experimental and Translational Cardiac Imaging, DZHK Centre for Cardiovascular Imaging, Goethe University Hospital Frankfurt, Frankfurt am Main, Germany
| | - H Post
- Department of Internal Medicine and Cardiology, Charité-Universitätsmedizin Berlin, Campus Virchow-Klinikum, Augustenburger Platz 1, 13353, Berlin, Germany
- Berlin Institute of Health (BIH), Berlin, Germany
- DZHK (German Centre for Cardiovascular Research), partner site, Berlin, Germany
- Department of Cardiology, Contilia Heart and Vessel Centre, St. Marien-Hospital Mülheim, 45468, Mülheim, Germany
| | - S Kelle
- Department of Internal Medicine and Cardiology, Charité-Universitätsmedizin Berlin, Campus Virchow-Klinikum, Augustenburger Platz 1, 13353, Berlin, Germany
- Berlin Institute of Health (BIH), Berlin, Germany
- DZHK (German Centre for Cardiovascular Research), partner site, Berlin, Germany
- Department of Internal Medicine/Cardiology, Deutsches Herzzentrum Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
| | - A Alogna
- Department of Internal Medicine and Cardiology, Charité-Universitätsmedizin Berlin, Campus Virchow-Klinikum, Augustenburger Platz 1, 13353, Berlin, Germany.
- Berlin Institute of Health (BIH), Berlin, Germany.
- DZHK (German Centre for Cardiovascular Research), partner site, Berlin, Germany.
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23
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Ruppert M, Lakatos BK, Braun S, Tokodi M, Karime C, Oláh A, Sayour AA, Hizoh I, Barta BA, Merkely B, Kovács A, Radovits T. Longitudinal Strain Reflects Ventriculoarterial Coupling Rather Than Mere Contractility in Rat Models of Hemodynamic Overload–Induced Heart Failure. J Am Soc Echocardiogr 2020; 33:1264-1275.e4. [DOI: 10.1016/j.echo.2020.05.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 05/13/2020] [Accepted: 05/14/2020] [Indexed: 02/07/2023]
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Abstract
In the late 19th century, Otto Frank published the first description of a ventricular pressure-volume diagram, thus laid the foundation for modern cardiovascular physiology. Since then, the analysis of the pressure-volume loops became a reference tool for the study of the ventricular pump properties. However, understanding cardiovascular performance requires both the evaluation of ventricular properties and the modulating effects of the arterial system, since the heart and the arterial tree are anatomically and functionally related structures. The study of the coupling between the cardiac function and the properties of the arterial system, or ventriculo-arterial (VA) coupling, provides then a comprehensive characterization of the performance of the cardiovascular system in both health and disease. The assessment of cardiovascular function is an essential element of the hemodynamic evaluation of critically ill patients. Both left and right ventricular dysfunction and arterial system disturbances are frequent in these patients. Since VA coupling ultimately defines de performance and efficiency of the cardiovascular system, the analysis of the interaction between the heart and the arterial system could offer a broader perspective of the hemodynamic disorders associated with common conditions, such as septic shock, heart failure, or right ventricular dysfunction. Moreover, this analysis could also provide valuable information about their pathophysiological mechanisms and may help to determine the best therapeutic strategy to correct them. In this review, we will describe the basic principles of the VA coupling assessment, its limitations, and the most common methods for its estimation at the bedside. Then, we will summarize the current knowledge of the application of VA coupling in critically ill patients and suggest some recommendations for further research.
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Affiliation(s)
| | - Arnoldo Santos
- Centro de Investigación Biomédica en Red (CIBER). Madrid, España.,ITC Ingeniería y Técnicas Clínicas SA, Madrid, España
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25
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Klaeboe LG, Brekke PH, Aaberge L, Haugaa K, Edvardsen T. Impact of transcatheter aortic valve implantation on mechanical dispersion. Open Heart 2020; 7:e001199. [PMID: 32153792 PMCID: PMC7046982 DOI: 10.1136/openhrt-2019-001199] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Revised: 01/21/2020] [Accepted: 02/06/2020] [Indexed: 11/04/2022] Open
Abstract
Objectives The physiological determinants of left ventricular (LV) mechanical dispersion (MD) are not fully explored. We aimed to investigate the impact of afterload reduction and changes in ventricular conduction on LV MD after transcatheter aortic valve implantation (TAVI). Methods Patients with severe aortic stenosis (AS) were examined in a prospective, repeated measures observational cohort study before and after an uncomplicated transfemoral TAVI in a single tertiary centre. LV MD was assessed by speckle tracking echocardiography. Valvulo-arterial impedance (ZVA) was used as a measure of global afterload. Results We included 140 consecutive patients (83±8 years old, 49% women, logistic EuroSCORE 16±10) with severe AS (valve area 0.7±0.2 cm2, mean transvalvular gradient 54±18 mm Hg) and a relatively preserved LV ejection fraction (52%±11%). After TAVI, we observed favourable changes in transvalvular gradients and ZVA in all patients. Compared with baseline, postprocedural MD was significantly lower in 108 patients with unchanged ventricular conduction (55±17 ms vs 51±17 ms, p=0.02) and higher in 28 patients with TAVI-induced left bundle branch block (51±13 ms vs 62±19 ms, p≤0.001). During 22±9 months observation, 22 patients died. Postprocedural MD was associated with mortality in a univariate Cox regression model (HR=1.24 (1.01-1.52), p<0.04, per 10 ms increase). Conclusions Isolated afterload reduction was associated with reduction of MD, while concomitant impairment of ventricular conduction resulted in a more pronounced MD after TAVI, indicating that loading conditions and conduction should be considered when evaluating MD. A pronounced postprocedural LV MD was associated with mortality.
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Affiliation(s)
- Lars Gunnar Klaeboe
- Department of Cardiology and Center for Cardiological Innovation, Oslo University Hospital Rikshospitalet, Oslo, Norway.,K.G. Jebsen Center for Cardiac Research, Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Pål Haugar Brekke
- Department of Cardiology and Center for Cardiological Innovation, Oslo University Hospital Rikshospitalet, Oslo, Norway
| | - Lars Aaberge
- Department of Cardiology and Center for Cardiological Innovation, Oslo University Hospital Rikshospitalet, Oslo, Norway
| | - Kristina Haugaa
- Department of Cardiology and Center for Cardiological Innovation, Oslo University Hospital Rikshospitalet, Oslo, Norway.,K.G. Jebsen Center for Cardiac Research, Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Thor Edvardsen
- Department of Cardiology and Center for Cardiological Innovation, Oslo University Hospital Rikshospitalet, Oslo, Norway.,K.G. Jebsen Center for Cardiac Research, Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
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26
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Slimani A, Melchior J, de Meester C, Pierard S, Roy C, Amzulescu M, Bouzin C, Maes F, Pasquet A, Pouleur AC, Vancraeynest D, Gerber B, El Khoury G, Vanoverschelde JL. Relative Contribution of Afterload and Interstitial Fibrosis to Myocardial Function in Severe Aortic Stenosis. JACC Cardiovasc Imaging 2020; 13:589-600. [DOI: 10.1016/j.jcmg.2019.05.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2018] [Revised: 04/26/2019] [Accepted: 05/02/2019] [Indexed: 02/01/2023]
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Nguyen M, Berhoud V, Bartamian L, Martin A, Ellouze O, Bouhemad B, Guinot PG. Agreement between different non-invasive methods of ventricular elastance assessment for the monitoring of ventricular-arterial coupling in intensive care. J Clin Monit Comput 2019; 34:893-901. [PMID: 31599374 DOI: 10.1007/s10877-019-00397-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 10/01/2019] [Indexed: 01/03/2023]
Abstract
Ventricular-arterial coupling is calculated as the arterial elastance to end systolic elastance ratio (EA/Ees). Although the gold standard is invasive pressure volume loop analysis, Chen method is the clinical reference non-invasive method for estimating end systolic elastance (Ees). Several simplified methods calculate Ees from the end systolic pressure to volume ratio (ESP/ESV). The objective of the present study was to determine whether ESP/ESV simplification can be used instead of the Chen formula to measure ventricular-arterial coupling and to monitor changes following therapeutic intervention. In this retrospective, single-center study, 3 non-invasive EA/Ees calculation methods were applied to 86 cardiac ICU patients. The Chen method was used as the reference method. Ees was also calculated according to method 1: Ees1 = 0.9 × SAP/ESV and method 2: Ees2= EA/(1/LVEF) - 1. EA was estimated as 0.9 × SAP/SV (mmHg ml-1). After simplification: EA/Ees1 = EA/Ees2 = (1/LVEF) - 1, with the stroke volume estimated as the product of the aortic velocity-time integral (VTIAo) and the aortic area or as the difference between the end diastolic volume (EDV) and the ESV. All patients received fluid infusion, norepinephrine, or dobutamine. At baseline, the concordance correlation coefficient with EA/EesChen was 0.13 [- 0.07; 0.31] for EA/Ees1 and 0.32 [0.19; 0.44] for EA/Ees2. Bias and limit of agreement were 0.28 [- 0.02; 0.36] and [- 5.8; 2.6] for EA/Ees1 and of 0.44 [0.31; 0.53] and [- 3.2; 2.6] for EA/Ees2. When used to follow variations in EA/Ees following therapeutic interventions, only 65% (for EA/Ees1) and 70% (for EA/Ees2) of measures followed the same trend as EA/EesChen. Our results do not support the use of ESP/ESV based method as substitute for Chen method to measure and assess changes in ventriculo-arterial coupling (EA/Ees) in cardiac intensive care patients. Further investigations are needed to establish the most reliable non-invasive method.
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Affiliation(s)
- Maxime Nguyen
- Department of Anesthesiology and Intensive Care, C.H.U. Dijon, Dijon, France. .,Lipness Team, INSERM Research Center LNC-UMR1231 and LabExLipSTIC, University of Burgundy, Dijon, France.
| | - Vivien Berhoud
- Department of Anesthesiology and Intensive Care, C.H.U. Dijon, Dijon, France
| | - Loïc Bartamian
- Department of Anesthesiology and Intensive Care, C.H.U. Dijon, Dijon, France
| | - Audrey Martin
- Department of Anesthesiology and Intensive Care, C.H.U. Dijon, Dijon, France
| | - Omar Ellouze
- Department of Anesthesiology and Intensive Care, C.H.U. Dijon, Dijon, France
| | - Bélaïd Bouhemad
- Department of Anesthesiology and Intensive Care, C.H.U. Dijon, Dijon, France.,Lipness Team, INSERM Research Center LNC-UMR1231 and LabExLipSTIC, University of Burgundy, Dijon, France
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28
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Eschalier R, Massoullié G, Nahli Y, Jean F, Combaret N, Ploux S, Souteyrand G, Chabin X, Bosle R, Lambert C, Chazot E, Citron B, Bordachar P, Motreff P, Pereira B, Clerfond G. New-Onset Left Bundle Branch Block After TAVI has a Deleterious Impact on Left Ventricular Systolic Function. Can J Cardiol 2019; 35:1386-1393. [DOI: 10.1016/j.cjca.2019.05.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2018] [Revised: 04/17/2019] [Accepted: 05/09/2019] [Indexed: 11/17/2022] Open
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29
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Capone CA, Lamour JM, Lorenzo J, Tria B, Ye K, Hsu DT, Mahgerefteh J. Ventricular Arterial Coupling: A Novel Echocardiographic Risk Factor for Disease Progression in Pediatric Dilated Cardiomyopathy. Pediatr Cardiol 2019; 40:330-338. [PMID: 30415380 DOI: 10.1007/s00246-018-2021-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Accepted: 11/01/2018] [Indexed: 11/25/2022]
Abstract
In adult heart failure (HF) patients, a higher ventricular arterial (VA) coupling ratio measured non-invasively is associated with worse HF prognosis and response to treatment. There are no data regarding the relationship of VA coupling to outcome in pediatric dilated cardiomyopathy (DCM) patients. We investigated the association of VA coupling ratio with worse outcome (mechanical circulatory support, transplant, or death) in 48 children with DCM and 97 age-gender matched controls. Mean age at presentation was 9 ± 7 years; DCM patients had a higher arterial elastance (3.8 ± 1.7 vs 2.7 ± 0.7 respectively p = 0.001), a lower LV elastance (1.1 ± 0.65 vs 4.5 ± 1.4, respectively p = 0.001) and higher VA coupling ratio (5.0 ± 3.9 vs 0.34 ± 0.14, respectively p = 0.001). Outcome events occurred in 27/48 (56%) patients. Patients with an outcome event had a higher NYHA class (p = 0.001), lower LV elastance (0.8 ± 0.47 vs 1.6 ± 0.57, respectively p = 0.001), higher arterial elastance (4.5 ± 1.8 vs 2.9 ± 1.1, respectively p = 0.002), and a higher VA coupling ratio (7.1 ± 3.8 vs 2.2 ± 1.5, respectively p = 0.001) compared to those without. In a multivariate CART analysis, VA coupling was the top and only discriminator of poor outcome. In conclusion, a higher VA coupling ratio is associated with worse outcome in pediatric patients with DCM. VA coupling is promising as a bedside analysis tool that may provide insight into the mechanisms of HF in pediatric DCM and identify potential targets for therapy.
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Affiliation(s)
- Christine A Capone
- Division of Pediatric Cardiology, Department of Pediatrics, The Children's Hospital at Montefiore, Albert Einstein College of Medicine, 3415 Bainbridge Avenue, R1, 10467, Bronx, NY, USA.
| | - Jacqueline M Lamour
- Division of Pediatric Cardiology, Department of Pediatrics, The Children's Hospital at Montefiore, Albert Einstein College of Medicine, 3415 Bainbridge Avenue, R1, 10467, Bronx, NY, USA
| | - Josemiguel Lorenzo
- Division of Pediatric Cardiology, Department of Pediatrics, The Children's Hospital at Montefiore, Albert Einstein College of Medicine, 3415 Bainbridge Avenue, R1, 10467, Bronx, NY, USA
| | - Barbara Tria
- Division of Pediatric Cardiology, Department of Pediatrics, The Children's Hospital at Montefiore, Albert Einstein College of Medicine, 3415 Bainbridge Avenue, R1, 10467, Bronx, NY, USA
| | - Kenny Ye
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Daphne T Hsu
- Division of Pediatric Cardiology, Department of Pediatrics, The Children's Hospital at Montefiore, Albert Einstein College of Medicine, 3415 Bainbridge Avenue, R1, 10467, Bronx, NY, USA
| | - Joseph Mahgerefteh
- Division of Pediatric Cardiology, Department of Pediatrics, The Children's Hospital at Montefiore, Albert Einstein College of Medicine, 3415 Bainbridge Avenue, R1, 10467, Bronx, NY, USA
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Assessment of Subclinical Left Ventricular Dysfunction in Aortic Stenosis. JACC Cardiovasc Imaging 2019; 12:163-171. [DOI: 10.1016/j.jcmg.2018.08.040] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 08/19/2018] [Accepted: 08/21/2018] [Indexed: 12/23/2022]
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Xanthopoulos A, Starling RC, Kitai T, Triposkiadis F. Heart Failure and Liver Disease: Cardiohepatic Interactions. JACC-HEART FAILURE 2018; 7:87-97. [PMID: 30553904 DOI: 10.1016/j.jchf.2018.10.007] [Citation(s) in RCA: 123] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Accepted: 10/04/2018] [Indexed: 02/07/2023]
Abstract
Heart failure (HF) and liver disease often co-exist. This is because systemic disorders and diseases affect both organs (alcohol abuse, drugs, inflammation, autoimmunity, infections) and because of complex cardiohepatic interactions. The latter, which are the focus of this review, include the development of acute cardiogenic liver injury and congestive hepatopathy in HF as well as cardiac dysfunction and failure in the setting of liver cirrhosis, nonalcoholic fatty liver disease, and sequelae following liver transplantation. The emerging role of altered liver X receptor signaling in the pathogenesis of HF comorbidities as well as of the intestinal microbiome and its metabolites in HF and liver disease are fruitful areas for future research.
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Affiliation(s)
- Andrew Xanthopoulos
- Department of Cardiovascular Medicine, Heart and Vascular Institute, Kaufman Center for Heart Failure, Cleveland Clinic, Cleveland, Ohio
| | - Randall C Starling
- Department of Cardiovascular Medicine, Heart and Vascular Institute, Kaufman Center for Heart Failure, Cleveland Clinic, Cleveland, Ohio
| | - Takeshi Kitai
- Department of Cardiovascular Medicine, Kobe City Medical Center General Hospital, Kobe, Japan
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Chowdhury SM, Butts RJ, Taylor CL, Bandisode VM, Chessa KS, Hlavacek AM, Nutting A, Shirali GS, Baker GH. Longitudinal measures of deformation are associated with a composite measure of contractility derived from pressure-volume loop analysis in children. Eur Heart J Cardiovasc Imaging 2018; 19:562-568. [PMID: 29053805 PMCID: PMC5909637 DOI: 10.1093/ehjci/jex167] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 06/02/2017] [Accepted: 06/05/2017] [Indexed: 11/13/2022] Open
Abstract
Aims The relationship between echocardiographic measures of left ventricular (LV) systolic function and reference-standard measures have not been assessed in children. The objective of this study was to assess the validity of echocardiographic indices of LV systolic function via direct comparison to a novel composite measure of contractility derived from pressure-volume loop (PVL) analysis. Methods and results Children with normal loading conditions undergoing routine left heart catheterization were prospectively enrolled. PVLs were obtained via conductance catheters. A composite invasive composite contractility index (ICCI) was developed using data reduction strategies to combine four measures of contractility derived from PVL analysis. Echocardiograms were performed immediately after PVL analysis under the same anesthetic conditions. Conventional and speckle-tracking echocardiographic measures of systolic function were measured. Of 24 patients, 18 patients were heart transplant recipients, 6 patients had a small patent ductus arteriosus or small coronary fistula. Mean age was 9.1 ± 5.6 years. Upon multivariable regression, longitudinal strain was associated with ICCI (β = -0.54, P = 0.02) while controlling for indices of preload, afterload, heart rate, and LV mass under baseline conditions. Ejection fraction and shortening fraction were associated with LV mass and load indices, but not contractility. Conclusion Speckle-tracking derived longitudinal strain is associated ICCI in children with normal loading conditions. Longitudinal measures of deformation appear to accurately assess LV contractility in children.
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Affiliation(s)
- Shahryar M Chowdhury
- Department of Pediatrics, Division of Cardiology, Medical University of South Carolina, 165 Ashley Ave, MSC 915, Charleston, SC, 29425, USA
| | - Ryan J Butts
- Department of Pediatrics, Division of Cardiology, Medical University of South Carolina, 165 Ashley Ave, MSC 915, Charleston, SC, 29425, USA
| | - Carolyn L Taylor
- Department of Pediatrics, Division of Cardiology, Medical University of South Carolina, 165 Ashley Ave, MSC 915, Charleston, SC, 29425, USA
| | - Varsha M Bandisode
- Department of Pediatrics, Division of Cardiology, Medical University of South Carolina, 165 Ashley Ave, MSC 915, Charleston, SC, 29425, USA
| | - Karen S Chessa
- Department of Pediatrics, Division of Cardiology, Medical University of South Carolina, 165 Ashley Ave, MSC 915, Charleston, SC, 29425, USA
| | - Anthony M Hlavacek
- Department of Pediatrics, Division of Cardiology, Medical University of South Carolina, 165 Ashley Ave, MSC 915, Charleston, SC, 29425, USA
| | - Arni Nutting
- Department of Pediatrics, Division of Cardiology, Medical University of South Carolina, 165 Ashley Ave, MSC 915, Charleston, SC, 29425, USA
| | - Girish S Shirali
- The Ward Family Heart Center, Children’s Mercy Hospital, 2401 Gillham Road, Kansas City, MO, 64108, USA
| | - G Hamilton Baker
- Department of Pediatrics, Division of Cardiology, Medical University of South Carolina, 165 Ashley Ave, MSC 915, Charleston, SC, 29425, USA
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Yotti R, Ripoll C, Bermejo J, Bañares R. Cardiac function, A key component in evaluation for liver transplant. Liver Transpl 2018; 24:7-8. [PMID: 29193630 DOI: 10.1002/lt.24987] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Accepted: 11/27/2017] [Indexed: 02/07/2023]
Affiliation(s)
- Raquel Yotti
- Departments of Cardiology and Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV) and
| | - Cristina Ripoll
- Digestive Diseases and Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas Hospital General Universitario Gregorio Marañón Instituto de Investigación Sanitaria Gregorio Marañón Facultad de Medicina, Universidad Complutense, Madrid, Spain
| | - Javier Bermejo
- Departments of Cardiology and Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV) and
| | - Rafael Bañares
- Digestive Diseases and Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas Hospital General Universitario Gregorio Marañón Instituto de Investigación Sanitaria Gregorio Marañón Facultad de Medicina, Universidad Complutense, Madrid, Spain
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Shin WJ, Hwang GS. Reply to: "Pressure volume curves in cirrhosis: More than meets the eye". J Hepatol 2017; 67:657-658. [PMID: 28499556 DOI: 10.1016/j.jhep.2017.05.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Accepted: 05/01/2017] [Indexed: 12/04/2022]
Affiliation(s)
- Won-Jung Shin
- Department of Anesthesiology and Pain Medicine, Laboratory for Cardiovascular Dynamics, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Gyu-Sam Hwang
- Department of Anesthesiology and Pain Medicine, Laboratory for Cardiovascular Dynamics, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea.
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Ripoll C, Yotti R, Bañares R, Bermejo J. Pressure volume curves in cirrhosis: More than meets the eye. J Hepatol 2017; 67:656-657. [PMID: 28495426 DOI: 10.1016/j.jhep.2017.03.042] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Accepted: 03/16/2017] [Indexed: 12/04/2022]
Affiliation(s)
- Cristina Ripoll
- Department of Digestive Diseases and CIBEREHD, Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón, and Facultad de Medicina, Universidad Complutense, Madrid, Spain
| | - Raquel Yotti
- Department of Cardiology and CIBERCV, Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón, and Facultad de Medicina, Universidad Complutense, Madrid, Spain
| | - Rafael Bañares
- Department of Digestive Diseases and CIBEREHD, Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón, and Facultad de Medicina, Universidad Complutense, Madrid, Spain
| | - Javier Bermejo
- Department of Cardiology and CIBERCV, Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón, and Facultad de Medicina, Universidad Complutense, Madrid, Spain.
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Strain Rate in Children and Young Piglets Mirrors Changes in Contractility and Demonstrates a Force-Frequency Relationship. J Am Soc Echocardiogr 2017; 30:797-806. [DOI: 10.1016/j.echo.2017.04.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Indexed: 11/18/2022]
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Sato K, Kumar A, Jones BM, Mick SL, Krishnaswamy A, Grimm RA, Desai MY, Griffin BP, Rodriguez LL, Kapadia SR, Obuchowski NA, Popović ZB. Reversibility of Cardiac Function Predicts Outcome After Transcatheter Aortic Valve Replacement in Patients With Severe Aortic Stenosis. J Am Heart Assoc 2017; 6:JAHA.117.005798. [PMID: 28698259 PMCID: PMC5586298 DOI: 10.1161/jaha.117.005798] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Background Reversibility of left ventricular (LV) dysfunction in high‐risk aortic stenosis patient and its impact on survival after transcatheter aortic valve replacement (TAVR) are unclear. We aimed to evaluate longitudinal changes of LV structure and function after TAVR and their impact on survival. Methods and Results We studied 209 patients with aortic stenosis who underwent TAVR from May 2006 to December 2012. Echocardiograms were used to calculate LV end‐diastolic volume index (LVEDVi), LV ejection fraction, LV mass index (LVMi), and global longitudinal strain before, immediately (<10 days), late (1–3 months), and yearly after TAVR. During a median follow‐up of 1345 days, 118 patients died, with 26 dying within 1 year. Global longitudinal strain, LVEDVi, LV ejection fraction, and LVMi improved during follow‐up. In patients who died during the first year, death was preceded by LVEDVi and LVMi increase. Multivariable longitudinal data analysis showed that aortic regurgitation at baseline, aortic regurgitation at 30 days, and initial LVEDVi were independent predictors of subsequent LVEDVi. In a joint analysis of longitudinal and survival data, baseline Society of Thoracic Surgeons score was predictive of survival, with no additive effect of longitudinal changes in LVEDVi, LVMi, global longitudinal strain, or LV ejection fraction. Presence of aortic regurgitation at 1 month after TAVR was the only predictor of 1‐year survival. Conclusions LV reverse remodeling was observed after TAVR, whereas lack of LVEDVi and LVMi improvement was observed in patients who died during the first year after TAVR. Post‐TAVR, aortic regurgitation blocks reverse remodeling and is associated with poor 1‐year survival after TAVR.
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Affiliation(s)
- Kimi Sato
- Heart and Vascular Institute, Cleveland Clinic, Cleveland, OH
| | - Arnav Kumar
- Heart and Vascular Institute, Cleveland Clinic, Cleveland, OH
| | - Brandon M Jones
- Heart and Vascular Institute, Cleveland Clinic, Cleveland, OH
| | | | | | - Richard A Grimm
- Heart and Vascular Institute, Cleveland Clinic, Cleveland, OH
| | - Milind Y Desai
- Heart and Vascular Institute, Cleveland Clinic, Cleveland, OH
| | - Brian P Griffin
- Heart and Vascular Institute, Cleveland Clinic, Cleveland, OH
| | | | - Samir R Kapadia
- Heart and Vascular Institute, Cleveland Clinic, Cleveland, OH
| | - Nancy A Obuchowski
- Department of Quantitative Health Sciences, Cleveland Clinic, Cleveland, OH
| | - Zoran B Popović
- Heart and Vascular Institute, Cleveland Clinic, Cleveland, OH
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Doyle M, Pohost GM, Bairey Merz CN, Farah V, Shaw LJ, Sopko G, Rogers WJ, Sharaf BL, Pepine CJ, Thompson DV, Rayarao G, Tauxe L, Kelsey SF, Biederman RWW. Aortic flow conditions predict ejection efficiency in the NHLBI-Sponsored Women's Ischemia Syndrome Evaluation (WISE). Cardiovasc Diagn Ther 2017; 7:288-295. [PMID: 28567354 DOI: 10.21037/cdt.2017.03.07] [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: 01/08/2023]
Abstract
BACKGROUND The Windkessel model of the cardiovascular system, both in its original wind-chamber and flow-pipe form, and in its electrical circuit analog has been used for over a century to modeled left ventricular ejection conditions. Using parameters obtained from aortic flow we formed a Flow Index that is proportional to the impedance of such a "circuit". We show that the impedance varies with ejection fraction (EF) in a manner characteristic of a resonant circuit with multiple resonance points, with each resonance point centrally located in a small range of EF values, i.e., corresponding to multiple contiguous EF bands. METHODS Two target populations were used: (I) a development group comprising male and female subjects (n=112) undergoing cardiovascular magnetic resonance (CMR) imaging for a variety of cardiac conditions. The Flow Index was developed using aortic flow data and its relationship to left ventricular EF was shown. (II) An illustration group comprised of female subjects from the Women's Ischemia Syndrome Evaluation (WISE) (n=201) followed for 5 years for occurrence of major adverse cardiovascular events (MACE). Flow data was not available in this group but since the Flow Index was related to the EF we noted the MACE rate with respect to EF. RESULTS The EFs of the development population covered a wide range (9%-76%) traversing six Flow Index resonance bands. Within each Flow Index resonance band the impedance varied from highly capacitive at the lower range of EF through minimal impedance at resonance, to highly inductive at the higher range of EF, which is characteristic of a resonant circuit. When transitioning from one EF band to a higher band, the Flow Index made a sudden transition from highly inductive to capacitive impedance modes. MACE occurred in 26 (13%) of the WISE (illustration) population. Distance in EF units (Deltacenter) from the central location between peaks of MACE activity was derived from EF data and was predictive of MACE rate with an area under the receiver operator curve of 0.73. Of special interest, Deltacenter was highly predictive of MACE in the sub-set of women with EF >60% (AUC 0.79) while EF was no more predictive than random chance (AUC 0.48). CONCLUSIONS A Flow Index that describes impedance conditions of left ventricular ejection can be calculated using data obtained completely from the ascending aorta. The Flow Index exhibits a periodic variation with EF, and in a separate illustration population the occurrence of MACE was observed to exhibit a similar periodic variation with EF, even in cases of normal EF.
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Affiliation(s)
- Mark Doyle
- Allegheny General Hospital, Pittsburgh, PA, USA
| | - Gerald M Pohost
- Keck Medical Center, University of Southern California, Los Angeles, CA, USA
| | - C Noel Bairey Merz
- Barbra Streisand Women's Heart Center, Cedars-Sinai Heart Institute, Los Angeles, CA, USA
| | | | - Leslee J Shaw
- Barbra Streisand Women's Heart Center, Cedars-Sinai Heart Institute, Los Angeles, CA, USA
| | - George Sopko
- National Heart Lung and Blood Institute, NIH, Bethesda, MD, USA
| | | | | | | | | | | | | | - Sheryl F Kelsey
- Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
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Yotti R, Ripoll C, Benito Y, Catalina MV, Elízaga J, Rincón D, Fernández-Avilés F, Bermejo J, Bañares R. Left ventricular systolic function is associated with sympathetic nervous activity and markers of inflammation in cirrhosis. Hepatology 2017; 65:2019-2030. [PMID: 28195341 DOI: 10.1002/hep.29104] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Revised: 01/13/2017] [Accepted: 02/04/2017] [Indexed: 12/17/2022]
Abstract
UNLABELLED An accurate evaluation of cardiac function in patients with cirrhosis remains a challenge. We used robust echocardiographic indices to characterize left ventricular (LV) systolic function and its relationship to activation of the sympathetic nervous system and inflammation in 59 patients with cirrhosis and 59 age-matched controls. Additionally, in 11 patients we withdrew beta-blockers and diuretics and used phenylephrine and albumin infusion to evaluate the response to acute afterload and preload changes (interventional substudy). Measures of systolic LV function such as the ejection intraventricular pressure difference (EIVPD) and the systolic strain rate were higher in patients with cirrhosis than in controls (median [1st-3rd quartile], 4.0 [3.1-5.1] versus 2.9 [2.4-3.6] mm Hg and -1.3 [-1.6 to -1.1] versus -1.2 [-1.6 to -1.1)] s-1 , respectively; P < 0.05 for both). EIVPD was related to the severity of liver disease (Model for End-Stage Liver Disease, rho = 0.45, P < 0.001), the degree of sympathetic nervous system activation (noradrenaline, rho = 0.26, P = 0.05; heart rate variability, rho = -0.43, P = 0.003), and treatment with beta-blockers (P = 0.001). In the interventional substudy, EIVPD was higher in patients with ascites (6.5 [5.4-8.5] versus 4.0 [3.9-5.1] mm Hg, P = 0.045). The decrease in EIVPD induced by phenylephrine was inversely related to baseline systolic function (P < 0.05) and associated with markers of systemic vasodilatation (nitric oxide, rho = -0.66, P = 0.06; diastolic blood pressure, rho = 0.68, P = 0.04) and inflammation (interleukin-1beta, rho = -0.80, P = 0.009). CONCLUSION LV systolic function is enhanced in cirrhosis due to augmented adrenergic tone and modulated by treatment with beta-blockers; acute afterload stress induces a deeper impairment of systolic function in patients with more advanced degrees of vasodilatation and inflammation; these changes in LV function related to cirrhosis can be assessed using robust echocardiographic methods. (Hepatology 2017;65:2019-2030).
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Affiliation(s)
- Raquel Yotti
- Department of Cardiology and CIBERCV, Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón, and Facultad de Medicina, Universidad Complutense, Madrid, Spain
| | - Cristina Ripoll
- Department of Digestive Diseases and CIBEREHD, Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón, and Facultad de Medicina, Universidad Complutense, Madrid, Spain
| | - Yolanda Benito
- Department of Cardiology and CIBERCV, Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón, and Facultad de Medicina, Universidad Complutense, Madrid, Spain
| | - Maria Vega Catalina
- Department of Digestive Diseases and CIBEREHD, Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón, and Facultad de Medicina, Universidad Complutense, Madrid, Spain
| | - Jaime Elízaga
- Department of Cardiology and CIBERCV, Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón, and Facultad de Medicina, Universidad Complutense, Madrid, Spain
| | - Diego Rincón
- Department of Digestive Diseases and CIBEREHD, Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón, and Facultad de Medicina, Universidad Complutense, Madrid, Spain
| | - Francisco Fernández-Avilés
- Department of Cardiology and CIBERCV, Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón, and Facultad de Medicina, Universidad Complutense, Madrid, Spain
| | - Javier Bermejo
- Department of Cardiology and CIBERCV, Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón, and Facultad de Medicina, Universidad Complutense, Madrid, Spain
| | - Rafael Bañares
- Department of Digestive Diseases and CIBEREHD, Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón, and Facultad de Medicina, Universidad Complutense, Madrid, Spain
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40
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Møller S, Hove JD. Assessment of systolic function in the evaluation of patients with cirrhosis. Hepatology 2017; 65:1799-1802. [PMID: 28317147 DOI: 10.1002/hep.29163] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Accepted: 03/15/2017] [Indexed: 01/03/2023]
Affiliation(s)
- Søren Møller
- Centre of Functional Imaging and Research Department of Clinical Physiology and Nuclear Medicine 239 Hvidovre Hospital Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Jens D Hove
- Department of Cardiology Hvidovre Hospital Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
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Park PW, Atz AM, Taylor CL, Chowdhury SM. Speckle-Tracking Echocardiography Improves Pre-operative Risk Stratification Before the Total Cavopulmonary Connection. J Am Soc Echocardiogr 2017; 30:478-484. [PMID: 28274715 PMCID: PMC5420476 DOI: 10.1016/j.echo.2017.01.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Indexed: 01/25/2023]
Abstract
INTRODUCTION Single-ventricle patients with elevated pulmonary vascular resistance (PVR) or end-diastolic pressure (EDP) are excluded from undergoing total cavopulmonary connection (TCPC). However, a subset of patients deemed to be at acceptable risk experience prolonged length of stay (LOS) after TCPC. Routine assessment of ventricular function has been inadequate in identifying these high-risk patients. Speckle-tracking echocardiography (STE) is a novel method for assessment of myocardial deformation that may be useful in single-ventricle patients. The aim of this study was to perform a contemporary preoperative risk assessment for prolonged LOS to determine whether STE improves risk stratification before TCPC. METHODS Our single institution's perioperative data were retrospectively collected. The primary outcome was postoperative LOS >14 days. Longitudinal and circumferential STE deformation measures were analyzed on echocardiograms obtained during preoperative catheterization. Patient-specific, echocardiographic, and catheterization data were included in multivariable logistic regression. Receiver operating characteristic area under the curves (AUC) were analyzed. RESULTS From 2007 to 2014, 135 patients who underwent TCPC were included in the analysis. The median LOS was 11 (IQR 9-14) days. The PVR (P < .01) and circumferential strain rate (CSR) (P < .01) were the only variables independently associated with LOS >14 days. For every 0.1 s-1 CSR increased, there was a 20% increased odds of prolonged LOS. The AUC for CSR was 0.70. The AUC for PVR and EDP combined was 0.68. The AUC for PVR, EDP, and CSR combined was 0.73. CONCLUSION Preoperative CSR is independently associated with LOS >14 days and improves preoperative risk stratification in patients undergoing TCPC.
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Affiliation(s)
- Patsy W Park
- Department of Pediatrics, Division of Cardiology, Medical University of South Carolina, Charleston, South Carolina
| | - Andrew M Atz
- Department of Pediatrics, Division of Cardiology, Medical University of South Carolina, Charleston, South Carolina
| | - Carolyn L Taylor
- Department of Pediatrics, Division of Cardiology, Medical University of South Carolina, Charleston, South Carolina
| | - Shahryar M Chowdhury
- Department of Pediatrics, Division of Cardiology, Medical University of South Carolina, Charleston, South Carolina.
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Guerra M, Mendes-Ferreira P, Adão R, Pereira E, Vieira M, Lourenço AP, Brás-Silva C, Bastos P, Vouga L, Leite-Moreira AF. Improvement in left intraventricular pressure gradients after aortic valve replacement in aortic stenosis patients. Exp Physiol 2017; 102:411-421. [DOI: 10.1113/ep086191] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Accepted: 02/10/2017] [Indexed: 11/08/2022]
Affiliation(s)
- Miguel Guerra
- Department of Physiology and Cardiothoracic Surgery, Cardiovascular R&D Unit, Faculty of Medicine; University of Porto; Alameda Professor Hernâni Monteiro Porto Portugal
- Department of Cardiothoracic Surgery; Centro Hospitalar de Vila Nova de Gaia/Espinho; Rua Conceição Fernandes Vila Nova de Gaia Portugal
| | - Pedro Mendes-Ferreira
- Department of Physiology and Cardiothoracic Surgery, Cardiovascular R&D Unit, Faculty of Medicine; University of Porto; Alameda Professor Hernâni Monteiro Porto Portugal
| | - Rui Adão
- Department of Physiology and Cardiothoracic Surgery, Cardiovascular R&D Unit, Faculty of Medicine; University of Porto; Alameda Professor Hernâni Monteiro Porto Portugal
| | - Eulália Pereira
- Department of Cardiothoracic Surgery; Centro Hospitalar de Vila Nova de Gaia/Espinho; Rua Conceição Fernandes Vila Nova de Gaia Portugal
- Department of Cardiology; Centro Hospitalar de Vila Nova de Gaia/Espinho; Rua Conceição Fernandes Vila Nova de Gaia Portugal
| | - Manuela Vieira
- Department of Anesthesiology; Centro Hospitalar de Vila Nova de Gaia/Espinho; Rua Conceição Fernandes Vila Nova de Gaia Portugal
| | - André P. Lourenço
- Department of Physiology and Cardiothoracic Surgery, Cardiovascular R&D Unit, Faculty of Medicine; University of Porto; Alameda Professor Hernâni Monteiro Porto Portugal
| | - Carmen Brás-Silva
- Department of Physiology and Cardiothoracic Surgery, Cardiovascular R&D Unit, Faculty of Medicine; University of Porto; Alameda Professor Hernâni Monteiro Porto Portugal
- Faculty of Nutrition and Food Sciences; University of Porto; Porto Portugal
| | - Pedro Bastos
- Department of Physiology and Cardiothoracic Surgery, Cardiovascular R&D Unit, Faculty of Medicine; University of Porto; Alameda Professor Hernâni Monteiro Porto Portugal
- Department of Cardiothoracic Surgery; Centro Hospitalar São João; Alameda Professor Hernâni Monteiro Porto Portugal
| | - Luís Vouga
- Department of Cardiothoracic Surgery; Centro Hospitalar de Vila Nova de Gaia/Espinho; Rua Conceição Fernandes Vila Nova de Gaia Portugal
| | - Adelino F. Leite-Moreira
- Department of Physiology and Cardiothoracic Surgery, Cardiovascular R&D Unit, Faculty of Medicine; University of Porto; Alameda Professor Hernâni Monteiro Porto Portugal
- Department of Cardiothoracic Surgery; Centro Hospitalar São João; Alameda Professor Hernâni Monteiro Porto Portugal
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Karsenty C, Hadeed K, Dulac Y, Semet F, Alacoque X, Breinig S, Leobon B, Acar P, Hascoet S. Two-dimensional right ventricular strain by speckle tracking for assessment of longitudinal right ventricular function after paediatric congenital heart disease surgery. Arch Cardiovasc Dis 2017; 110:157-166. [DOI: 10.1016/j.acvd.2016.09.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Revised: 05/31/2016] [Accepted: 09/06/2016] [Indexed: 10/20/2022]
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Obokata M, Kurosawa K, Ishida H, Ito K, Ogawa T, Ando Y, Kurabayashi M, Negishi K. Incremental Prognostic Value of Ventricular-Arterial Coupling over Ejection Fraction in Patients with Maintenance Hemodialysis. J Am Soc Echocardiogr 2017; 30:444-453.e2. [PMID: 28246005 DOI: 10.1016/j.echo.2016.12.014] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Indexed: 10/20/2022]
Abstract
BACKGROUND Left ventricular ejection fraction (LVEF) is a predictor of adverse outcomes in hemodialysis patients. LVEF is, however, an integral parameter determined by contractility, loading condition, and coupling. We sought to determine whether these components would better predict adverse outcomes and have incremental prognostic value over a validated clinical score and EF. METHODS Two hundred thirty-four hemodialysis patients were prospectively followed up for primary composite endpoint: all-cause death, nonfatal myocardial infarction, and hospitalization due to worsening heart failure (HF). Load-independent contractility (end-systolic elastance [Ees] and preload recruitable stroke work [PRSW]) and arterial afterload (arterial elastance [Ea]) were noninvasively estimated. Ventricular-arterial coupling was assessed using the Ea/Ees ratio. LV global longitudinal strain (GLS) and mitral E-wave over annular velocity E' ratio (E/E') were also measured. RESULTS During a median follow-up of 776 days, 30 patients developed the primary endpoint. Ees, PRSW, GLS, S', Ea/Ees, E/E', and EF were independently associated with the outcome after adjusting for the clinical score and prior HF hospitalization, whereas end-diastolic volume index or arterial afterload parameters were not. The nested Cox models indicated that Ea/Ees had independent and incremental predictive value over the model based on the score and either EF or E/E'. Furthermore, Ea/Ees continued to have predictive value after adjusting for GLS. The classification and regression analysis stratified event rates ranging from 4.2% to 68.8%. CONCLUSIONS LV contractility and Ea/Ees were independently associated with adverse outcome in hemodialysis patients. Ea/Ees had an incremental prognostic value over the clinical score and EF.
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Affiliation(s)
- Masaru Obokata
- Department of Medicine and Biological Science, Gunma University Graduate School of Medicine, Maebashi, Gunma
| | - Koji Kurosawa
- Department of Medicine and Biological Science, Gunma University Graduate School of Medicine, Maebashi, Gunma
| | | | - Kyoko Ito
- Hidaka Hospital, Takasaki, Gunma; Department of Nephrology, Heisei-Hidaka Clinic, Takasaki, Gunma
| | - Tetsuya Ogawa
- Hidaka Hospital, Takasaki, Gunma; Department of Medicine, Tokyo Women's Medical University Medical Center East, Tokyo, Japan
| | | | - Masahiko Kurabayashi
- Department of Medicine and Biological Science, Gunma University Graduate School of Medicine, Maebashi, Gunma
| | - Kazuaki Negishi
- Department of Medicine and Biological Science, Gunma University Graduate School of Medicine, Maebashi, Gunma; Menzies Research Institute Tasmania, Hobart, Australia.
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Logoteta J, Ruppel C, Hansen J, Fischer G, Becker K, Kramer HH, Uebing A. Ventricular function and ventriculo-arterial coupling after palliation of hypoplastic left heart syndrome: A comparative study with Fontan patients with LV morphology. Int J Cardiol 2017; 227:691-697. [DOI: 10.1016/j.ijcard.2016.10.076] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Accepted: 10/28/2016] [Indexed: 11/25/2022]
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3D Real-Time Echocardiography Combined with Mini Pressure Wire Generate Reliable Pressure-Volume Loops in Small Hearts. PLoS One 2016; 11:e0165397. [PMID: 27776179 PMCID: PMC5077139 DOI: 10.1371/journal.pone.0165397] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Accepted: 10/11/2016] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Pressure-volume loops (PVL) provide vital information regarding ventricular performance and pathophysiology in cardiac disease. Unfortunately, acquisition of PVL by conductance technology is not feasible in neonates and small children due to the available human catheter size and resulting invasiveness. The aim of the study was to validate the accuracy of PVL in small hearts using volume data obtained by real-time three-dimensional echocardiography (3DE) and simultaneously acquired pressure data. METHODS In 17 piglets (weight range: 3.6-8.0 kg) left ventricular PVL were generated by 3DE and simultaneous recordings of ventricular pressure using a mini pressure wire (PVL3D). PVL3D were compared to conductance catheter measurements (PVLCond) under various hemodynamic conditions (baseline, alpha-adrenergic stimulation with phenylephrine, beta-adrenoreceptor-blockage using esmolol). In order to validate the accuracy of 3D volumetric data, cardiac magnetic resonance imaging (CMR) was performed in another 8 piglets. RESULTS Correlation between CMR- and 3DE-derived volumes was good (enddiastolic volume: mean bias -0.03ml ±1.34ml). Computation of PVL3D in small hearts was feasible and comparable to results obtained by conductance technology. Bland-Altman analysis showed a low bias between PVL3D and PVLCond. Systolic and diastolic parameters were closely associated (Intraclass-Correlation Coefficient for: systolic myocardial elastance 0.95, arterial elastance 0.93, diastolic relaxation constant tau 0.90, indexed end-diastolic volume 0.98). Hemodynamic changes under different conditions were well detected by both methods (ICC 0.82 to 0.98). Inter- and intra-observer coefficients of variation were below 5% for all parameters. CONCLUSIONS PVL3D generated from 3DE combined with mini pressure wire represent a novel, feasible and reliable method to assess different hemodynamic conditions of cardiac function in hearts comparable to neonate and infant size. This methodology may be integrated into clinical practice and cardiac catheterization programs and has the capability to contribute to clinical decision making even in small hearts.
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Lo Iudice F, Petitto M, Ferrone M, Esposito R, Vaccaro A, Buonauro A, D'Andrea A, Trimarco B, Galderisi M. Determinants of myocardial mechanics in top-level endurance athletes: three-dimensional speckle tracking evaluation. Eur Heart J Cardiovasc Imaging 2016:jew122. [DOI: 10.1093/ehjci/jew122] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/30/2023] Open
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Chowdhury SM, Butts RJ, Taylor CL, Bandisode VM, Chessa KS, Hlavacek AM, Shirali GS, Baker GH. Validation of Noninvasive Measures of Left Ventricular Mechanics in Children: A Simultaneous Echocardiographic and Conductance Catheterization Study. J Am Soc Echocardiogr 2016; 29:640-7. [PMID: 27025669 DOI: 10.1016/j.echo.2016.02.016] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Indexed: 10/22/2022]
Abstract
BACKGROUND The accuracy of echocardiography in evaluating left ventricular contractility has not been validated in children. The objective of this study was to compare echocardiographic measures of contractility with those derived from pressure-volume loop (PVL) analysis in children. METHODS Patients with relatively normal loading conditions undergoing routine left heart catheterization were prospectively enrolled. PVLs were obtained via conductance catheters. The gold-standard measure of contractility, end-systolic elastance (Ees), was obtained via balloon occlusion of one or both vena cavae. Echocardiograms were performed immediately after PVL analysis under the same anesthetic conditions. Single-beat estimations of echocardiographic Ees were calculated using four different methods. These estimates were calculated using a combination of noninvasive blood pressure readings, ventricular volumes derived from three-dimensional echocardiography, and Doppler time intervals. RESULTS Of 24 patients, 18 patients were heart transplant recipients, and six patients had small patent ductus arteriosus or small coronary fistulae. The mean age was 9.1 ± 5.6 years. The average invasive Ees was 3.04 ± 1.65 mm Hg/mL. Invasive Ees correlated best with echocardiographic Ees by the method of Tanoue (r = 0.85, P < .01), with a mean difference of -0.07 mm Hg/mL (95% limits of agreement, -2.0 to 1.4 mm Hg/mL). CONCLUSIONS Echocardiographic estimates of Ees correlate well with gold-standard measures obtained via conductance catheters in children with relatively normal loading conditions. The use of these noninvasive measures in accurately assessing left ventricular contractility appears promising and merits further study in children.
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Affiliation(s)
- Shahryar M Chowdhury
- Department of Pediatrics, Division of Cardiology, Medical University of South Carolina, Charleston, South Carolina.
| | - Ryan J Butts
- Department of Pediatrics, Division of Cardiology, Medical University of South Carolina, Charleston, South Carolina
| | - Carolyn L Taylor
- Department of Pediatrics, Division of Cardiology, Medical University of South Carolina, Charleston, South Carolina
| | - Varsha M Bandisode
- Department of Pediatrics, Division of Cardiology, Medical University of South Carolina, Charleston, South Carolina
| | - Karen S Chessa
- Department of Pediatrics, Division of Cardiology, Medical University of South Carolina, Charleston, South Carolina
| | - Anthony M Hlavacek
- Department of Pediatrics, Division of Cardiology, Medical University of South Carolina, Charleston, South Carolina
| | - Girish S Shirali
- The Ward Family Heart Center, Children's Mercy Hospital, Kansas City, Missouri
| | - G Hamilton Baker
- Department of Pediatrics, Division of Cardiology, Medical University of South Carolina, Charleston, South Carolina
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Dahle GO, Stangeland L, Moen CA, Salminen PR, Haaverstad R, Matre K, Grong K. The influence of acute unloading on left ventricular strain and strain rate by speckle tracking echocardiography in a porcine model. Am J Physiol Heart Circ Physiol 2016; 310:H1330-9. [PMID: 26968547 DOI: 10.1152/ajpheart.00947.2015] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Accepted: 03/10/2016] [Indexed: 11/22/2022]
Abstract
Noninvasive measurements of myocardial strain and strain rate by speckle tracking echocardiography correlate to cardiac contractile state but also to load, which may weaken their value as indices of inotropy. In a porcine model, we investigated the influence of acute dynamic preload reductions on left ventricular strain and strain rate and their relation to the pressure-conductance catheter-derived preload recruitable stroke work (PRSW) and peak positive first derivative of left ventricular pressure (LV-dP/dtmax). Speckle tracking strain and strain rate in the longitudinal, circumferential, and radial directions were measured during acute dynamic reductions of end-diastolic volume during three different myocardial inotropic states. Both strain and strain rate were sensitive to unloading of the left ventricle (P < 0.001), but the load dependency for strain rate was modest compared with strain. Changes in longitudinal and circumferential strain correlated more strongly to changes in end-diastolic volume (r = -0.86 and r = -0.72) than did radial strain (r = 0.35). Longitudinal, circumferential, and radial strain significantly correlated with LV-dP/dtmax (r = -0.53, r = -0.46, and r = 0.86), whereas only radial strain correlated with PRSW (r = 0.55). Strain rate in the longitudinal, circumferential and radial direction significantly correlated with both PRSW (r = -0.64, r = -0.58, and r = 0.74) and LV-dP/dtmax (r = -0.95, r = -0.70, and r = 0.85). In conclusion, the speckle tracking echocardiography-derived strain rate is more robust to dynamic ventricular unloading than strain. Longitudinal and circumferential strain could not predict load-independent contractility. Strain rates, and especially in the radial direction, are good predictors of preload-independent inotropic markers derived from conductance catheter.
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Affiliation(s)
- Geir Olav Dahle
- Section of Cardiothoracic Surgery, Department of Heart Disease, Haukeland University Hospital, Bergen, Norway; and Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Lodve Stangeland
- Department of Clinical Science, University of Bergen, Bergen, Norway
| | | | - Pirjo-Riitta Salminen
- Section of Cardiothoracic Surgery, Department of Heart Disease, Haukeland University Hospital, Bergen, Norway; and Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Rune Haaverstad
- Section of Cardiothoracic Surgery, Department of Heart Disease, Haukeland University Hospital, Bergen, Norway; and Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Knut Matre
- Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Ketil Grong
- Department of Clinical Science, University of Bergen, Bergen, Norway
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Obokata M, Nagata Y, Wu VCC, Kado Y, Kurabayashi M, Otsuji Y, Takeuchi M. Direct comparison of cardiac magnetic resonance feature tracking and 2D/3D echocardiography speckle tracking for evaluation of global left ventricular strain. Eur Heart J Cardiovasc Imaging 2015; 17:525-32. [DOI: 10.1093/ehjci/jev227] [Citation(s) in RCA: 97] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Accepted: 08/21/2015] [Indexed: 12/27/2022] Open
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