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Assadi H, Sawh N, Bailey C, Matthews G, Li R, Grafton-Clarke C, Mehmood Z, Kasmai B, Swoboda PP, Swift AJ, van der Geest RJ, Garg P. Validation of Left Atrial Volume Correction for Single Plane Method on Four-Chamber Cine Cardiac MRI. Tomography 2024; 10:459-470. [PMID: 38668393 PMCID: PMC11054972 DOI: 10.3390/tomography10040035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 03/21/2024] [Accepted: 03/22/2024] [Indexed: 04/29/2024] Open
Abstract
BACKGROUND Left atrial (LA) assessment is an important marker of adverse cardiovascular outcomes. Cardiovascular magnetic resonance (CMR) accurately quantifies LA volume and function based on biplane long-axis imaging. We aimed to validate single-plane-derived LA indices against the biplane method to simplify the post-processing of cine CMR. METHODS In this study, 100 patients from Leeds Teaching Hospitals were used as the derivation cohort. Bias correction for the single plane method was applied and subsequently validated in 79 subjects. RESULTS There were significant differences between the biplane and single plane mean LA maximum and minimum volumes and LA ejection fraction (EF) (all p < 0.01). After correcting for biases in the validation cohort, significant correlations in all LA indices were observed (0.89 to 0.98). The area under the curve (AUC) for the single plane to predict biplane cutoffs of LA maximum volume ≥ 112 mL was 0.97, LA minimum volume ≥ 44 mL was 0.99, LA stroke volume (SV) ≤ 21 mL was 1, and LA EF ≤ 46% was 1, (all p < 0.001). CONCLUSIONS LA volumetric and functional assessment by the single plane method has a systematic bias compared to the biplane method. After bias correction, single plane LA volume and function are comparable to the biplane method.
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Affiliation(s)
- Hosamadin Assadi
- Department of Cardiovascular and Metabolic Health, Norwich Medical School, University of East Anglia, Norwich NR4 7TJ, UK
- Department of Cardiology, Norfolk and Norwich University Hospitals NHS Foundation Trust, Norwich NR4 7UY, UK
| | - Nicholas Sawh
- Faculty of Medicine, Medical University of Sofia, Blvd Akademik Ivan Evstratiev Geshov 15, 1431 Sofia, Bulgaria
| | - Ciara Bailey
- Department of Cardiovascular and Metabolic Health, Norwich Medical School, University of East Anglia, Norwich NR4 7TJ, UK
- Department of Cardiology, Norfolk and Norwich University Hospitals NHS Foundation Trust, Norwich NR4 7UY, UK
| | - Gareth Matthews
- Department of Cardiovascular and Metabolic Health, Norwich Medical School, University of East Anglia, Norwich NR4 7TJ, UK
- Department of Cardiology, Norfolk and Norwich University Hospitals NHS Foundation Trust, Norwich NR4 7UY, UK
| | - Rui Li
- Department of Cardiovascular and Metabolic Health, Norwich Medical School, University of East Anglia, Norwich NR4 7TJ, UK
- Department of Cardiology, Norfolk and Norwich University Hospitals NHS Foundation Trust, Norwich NR4 7UY, UK
| | - Ciaran Grafton-Clarke
- Department of Cardiovascular and Metabolic Health, Norwich Medical School, University of East Anglia, Norwich NR4 7TJ, UK
- Department of Cardiology, Norfolk and Norwich University Hospitals NHS Foundation Trust, Norwich NR4 7UY, UK
| | - Zia Mehmood
- Department of Cardiovascular and Metabolic Health, Norwich Medical School, University of East Anglia, Norwich NR4 7TJ, UK
- Department of Cardiology, Norfolk and Norwich University Hospitals NHS Foundation Trust, Norwich NR4 7UY, UK
| | - Bahman Kasmai
- Department of Cardiovascular and Metabolic Health, Norwich Medical School, University of East Anglia, Norwich NR4 7TJ, UK
- Department of Cardiology, Norfolk and Norwich University Hospitals NHS Foundation Trust, Norwich NR4 7UY, UK
| | - Peter P. Swoboda
- Division of Biomedical Imaging, Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds LS2 9JT, UK
| | - Andrew J. Swift
- Department of Infection, Immunity & Cardiovascular Disease, University of Sheffield, Sheffield S10 2RX, UK
| | - Rob J. van der Geest
- Department of Radiology, Division of Image Processing, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands
| | - Pankaj Garg
- Department of Cardiovascular and Metabolic Health, Norwich Medical School, University of East Anglia, Norwich NR4 7TJ, UK
- Department of Cardiology, Norfolk and Norwich University Hospitals NHS Foundation Trust, Norwich NR4 7UY, UK
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Katogiannis K, Thymis J, Kousathana F, Pavlidis G, Korakas E, Kountouri A, Balampanis K, Prentza V, Kostelli G, Michalopoulou H, Tsilivarakis D, Lambadiari V, Ikonomidis I. Effects of Liraglutide, Empagliflozin and Their Combination on Left Atrial Strain and Arterial Function. Medicina (Kaunas) 2024; 60:395. [PMID: 38541121 PMCID: PMC10971983 DOI: 10.3390/medicina60030395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 02/18/2024] [Accepted: 02/22/2024] [Indexed: 04/09/2024]
Abstract
Background and Objectives: Glucagon-like peptide-1 receptor agonists (GLP-1RA) and sodium-glucose cotransporter-2 inhibitors (SGLT-2i) are cardioprotective drugs. We investigated their effects on left atrial function, a major determinant of cardiac diastolic dysfunction in type 2 diabetes mellitus. We also explored the association of changes in arterial stiffness with those of the LA strain after treatment. Materials and Methods: A total of 200 patients (59.5 ± 9.1 year old, 151 male) with type 2 diabetes mellitus treated with metformin were randomized to insulin (n = 50 served as controls), liraglutide (n = 50), empagliflozin (n = 50) or their combination (liraglutide + empagliflozin) (n = 50). We measured at baseline and 6 months post-treatment: (a) left atrial and global left ventricular longitudinal strain by speckle tracking echocardiography; (b) pulse wave velocity (PWV) and central systolic blood pressure. Results: At baseline, there was a correlation of the LA reservoir strain with PWV (r = -0.209, p = 0.008), central SBP (r = -0.151, p = 0.030), EF (r = 0.214, p = 0.004) and GLS (r = -0.279, p = 0.009). The LA reservoir change 6 months post-treatment was correlated with the PWV change in all groups (r = -0.242, p = 0.028). The LA reservoir change 6 months post-treatment was correlated with the GLS change in all groups (r = -0.322, p = 0.004). Six months after intervention, patients treated with liraglutide, empagliflozin and their combination improved the left atrial reservoir strain (GLP1RA 30.7 ± 9.3 vs. 33.9 ± 9.7%, p = 0.011, SGLT2i 30 ± 8.3 vs. 32.3 ± 7.3%, p = 0.04, GLP1&SGLT2i 29.1 ± 8.7 vs. 31.3 ± 8.2, p = 0.007) compared to those treated with insulin (33 ± 8.3% vs. 32.8 ± 7.4, p = 0.829). Also, patients treated with liraglutide and the combination liraglutide and empagliflozin had improved left atrial conduction strain (p < 0.05). Empagliflozin or the combination liraglutide and empagliflozin showed a greater decrease of PWV and central and brachial systolic blood pressure than insulin or GLP-1RA. (p < 0.05). Conclusions: Impaired aortic elastic properties are associated with a decreased LA strain in type 2 diabetics. Treatment with liraglutide, empagliflozin and their combination for 6 months showed a greater improvement of left atrial function compared to insulin treatment in parallel with the improvement of arterial and myocardial functions.
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Affiliation(s)
- Konstantinos Katogiannis
- Second Cardiology Department, Attikon University Hospital, Medical School, National and Kapodistrian University of Athens, 15772 Athens, Greece; (J.T.); (G.K.); (H.M.); (D.T.); (I.I.)
| | - John Thymis
- Second Cardiology Department, Attikon University Hospital, Medical School, National and Kapodistrian University of Athens, 15772 Athens, Greece; (J.T.); (G.K.); (H.M.); (D.T.); (I.I.)
| | - Foteini Kousathana
- Second Department of Internal Medicine, Attikon University Hospital, Medical School, National and Kapodistrian University of Athens, 15772 Athens, Greece; (F.K.); (G.P.); (E.K.); (A.K.); (K.B.); (V.P.); (V.L.)
| | - George Pavlidis
- Second Department of Internal Medicine, Attikon University Hospital, Medical School, National and Kapodistrian University of Athens, 15772 Athens, Greece; (F.K.); (G.P.); (E.K.); (A.K.); (K.B.); (V.P.); (V.L.)
| | - Emmanouil Korakas
- Second Department of Internal Medicine, Attikon University Hospital, Medical School, National and Kapodistrian University of Athens, 15772 Athens, Greece; (F.K.); (G.P.); (E.K.); (A.K.); (K.B.); (V.P.); (V.L.)
| | - Aikaterini Kountouri
- Second Department of Internal Medicine, Attikon University Hospital, Medical School, National and Kapodistrian University of Athens, 15772 Athens, Greece; (F.K.); (G.P.); (E.K.); (A.K.); (K.B.); (V.P.); (V.L.)
| | - Konstantinos Balampanis
- Second Department of Internal Medicine, Attikon University Hospital, Medical School, National and Kapodistrian University of Athens, 15772 Athens, Greece; (F.K.); (G.P.); (E.K.); (A.K.); (K.B.); (V.P.); (V.L.)
| | - Vasiliki Prentza
- Second Department of Internal Medicine, Attikon University Hospital, Medical School, National and Kapodistrian University of Athens, 15772 Athens, Greece; (F.K.); (G.P.); (E.K.); (A.K.); (K.B.); (V.P.); (V.L.)
| | - Gavriella Kostelli
- Second Cardiology Department, Attikon University Hospital, Medical School, National and Kapodistrian University of Athens, 15772 Athens, Greece; (J.T.); (G.K.); (H.M.); (D.T.); (I.I.)
| | - Helen Michalopoulou
- Second Cardiology Department, Attikon University Hospital, Medical School, National and Kapodistrian University of Athens, 15772 Athens, Greece; (J.T.); (G.K.); (H.M.); (D.T.); (I.I.)
| | - Damianos Tsilivarakis
- Second Cardiology Department, Attikon University Hospital, Medical School, National and Kapodistrian University of Athens, 15772 Athens, Greece; (J.T.); (G.K.); (H.M.); (D.T.); (I.I.)
| | - Vaia Lambadiari
- Second Department of Internal Medicine, Attikon University Hospital, Medical School, National and Kapodistrian University of Athens, 15772 Athens, Greece; (F.K.); (G.P.); (E.K.); (A.K.); (K.B.); (V.P.); (V.L.)
| | - Ignatios Ikonomidis
- Second Cardiology Department, Attikon University Hospital, Medical School, National and Kapodistrian University of Athens, 15772 Athens, Greece; (J.T.); (G.K.); (H.M.); (D.T.); (I.I.)
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Diomede D, Terazzi E, Diomede N, Alcidi G, Pugliese R, Ioannoni S, Romano M, Granatiero M, Di Terlizzi V, Correale M, Di Biase M, Brunetti ND, Iacoviello M. Relationship between the strain measures of left atrial function and heart failure worsening. Echocardiography 2023; 40:942-951. [PMID: 37503767 DOI: 10.1111/echo.15659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 07/02/2023] [Accepted: 07/16/2023] [Indexed: 07/29/2023] Open
Abstract
BACKGROUND Two-dimensional speckle tracking evaluation (2D-STE) is a useful tool to evaluate the complexity of atrial function by the analysis of the different phases of atrial deformation and by the combination with Doppler measurements of diastolic function. AIM OF THE STUDY To evaluate the role of the left atrial (LA) strain parameters to predict worsening chronic heart failure (CHF). METHODS We enrolled outpatients affected by CHF referred to our heart failure unit. Each patient underwent a medical visit, an electrocardiogram (ECG), and an echocardiographic examination. LA function was assessed by 2D-STE. The three phases of LA strain, that is, the reservoir (LAr), the conduit (LAcd), and the contraction (LAct)-were evaluated. Moreover, the ratio between E and LAr (E/LAr) and those between LAr and septal (LAr/Ees), lateral (LAr/Eel), and septal-lateral (LAr/Eem) E/e' were measured. During follow-up, the events related to worsening of heart failure were evaluated. RESULTS Two hundred eleven patients were enrolled. During a mean follow-up of 14 ± 7 months, 37 patients showed at least one event related to heart failure worsening. At univariate Cox regression analysis, LAr, LAcd, LAct, E/LAr, LAr/Ees, LAr/Eel, and LAr/Eem were all associated with events related to heart failure worsening, but at multivariate regression analyses, only LAr (Hazard Ratio, HR: .95; 95% Confidence Interval, CI: .92-.99; p: .031), LAct (HR: 1.06; 95% CI: 1.01-1.12; p: .027), E/LAr (HR: 1.10; 95%CI: 1.0-1.16; p < .001), LAr/Ees (HR: .57; 95% CI: .37-.87; p: .010), and LAr/Eem (HR: .71; 95% CI: .53-.96; p: .026) remained significantly associated with the events. Finally, in a predictive model including the other relevant echocardiographic parameters LAr < 18%, LAct > -10.0%, LAr/Ees < 1.28, and E/LAr > 3.70 were associated with a statistically significant overall net reclassification improvement. CONCLUSIONS In CHF patients, the measure of the LA reservoir and contraction by 2D-STE is independently associated with heart failure worsening, but the accuracy in predicting the events is even greater when the reservoir is combined with the Doppler measures of diastolic function.
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Affiliation(s)
- Davide Diomede
- School of Cardiology, Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy
| | - Erica Terazzi
- School of Cardiology, Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy
| | - Nicolangelo Diomede
- School of Cardiology, Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy
| | - Gianmarco Alcidi
- School of Cardiology, Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy
| | - Rosanna Pugliese
- School of Cardiology, Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy
| | - Sara Ioannoni
- School of Cardiology, Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy
| | - Matteo Romano
- School of Cardiology, Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy
| | - Michele Granatiero
- School of Cardiology, Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy
| | - Vito Di Terlizzi
- Cardiology Unit, University Polyclinic Hospital of Foggia, Foggia, Italy
| | - Michele Correale
- Cardiology Unit, University Polyclinic Hospital of Foggia, Foggia, Italy
| | - Matteo Di Biase
- School of Cardiology, Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy
| | - Natale Daniele Brunetti
- School of Cardiology, Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy
- Cardiology Unit, University Polyclinic Hospital of Foggia, Foggia, Italy
| | - Massimo Iacoviello
- School of Cardiology, Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy
- Cardiology Unit, University Polyclinic Hospital of Foggia, Foggia, Italy
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Pergola V, Mattesi G, Cozza E, Pradegan N, Tessari C, Dellino CM, Savo MT, Amato F, Cecere A, Perazzolo Marra M, Tona F, Guaricci AI, De Conti G, Gerosa G, Iliceto S, Motta R. New Non-Invasive Imaging Technologies in Cardiac Transplant Follow-Up: Acquired Evidence and Future Options. Diagnostics (Basel) 2023; 13:2818. [PMID: 37685356 PMCID: PMC10487200 DOI: 10.3390/diagnostics13172818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 08/21/2023] [Accepted: 08/25/2023] [Indexed: 09/10/2023] Open
Abstract
Heart transplantation (HT) is the established treatment for end-stage heart failure, significantly enhancing patients' survival and quality of life. To ensure optimal outcomes, the routine monitoring of HT recipients is paramount. While existing guidelines offer guidance on a blend of invasive and non-invasive imaging techniques, certain aspects such as the timing of echocardiographic assessments and the role of echocardiography or cardiac magnetic resonance (CMR) as alternatives to serial endomyocardial biopsies (EMBs) for rejection monitoring are not specifically outlined in the guidelines. Furthermore, invasive coronary angiography (ICA) is still recommended as the gold-standard procedure, usually performed one year after surgery and every two years thereafter. This review focuses on recent advancements in non-invasive and contrast-saving imaging techniques that have been investigated for HT patients. The aim of the manuscript is to identify imaging modalities that may potentially replace or reduce the need for invasive procedures such as ICA and EMB, considering their respective advantages and disadvantages. We emphasize the transformative potential of non-invasive techniques in elevating patient care. Advanced echocardiography techniques, including strain imaging and tissue Doppler imaging, offer enhanced insights into cardiac function, while CMR, through its multi-parametric mapping techniques, such as T1 and T2 mapping, allows for the non-invasive assessment of inflammation and tissue characterization. Cardiac computed tomography (CCT), particularly with its ability to evaluate coronary artery disease and assess graft vasculopathy, emerges as an integral tool in the follow-up of HT patients. Recent studies have highlighted the potential of nuclear myocardial perfusion imaging, including myocardial blood flow quantification, as a non-invasive method for diagnosing and prognosticating CAV. These advanced imaging approaches hold promise in mitigating the need for invasive procedures like ICA and EMB when evaluating the benefits and limitations of each modality.
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Affiliation(s)
- Valeria Pergola
- Cardiology Unit, Department of Cardiac, Thoracic and Vascular Sciences and Public Health, University of Padua, 35128 Padua, Italy; (G.M.); (C.M.D.); (M.T.S.); (F.A.); (A.C.); (M.P.M.); (F.T.); (S.I.)
| | - Giulia Mattesi
- Cardiology Unit, Department of Cardiac, Thoracic and Vascular Sciences and Public Health, University of Padua, 35128 Padua, Italy; (G.M.); (C.M.D.); (M.T.S.); (F.A.); (A.C.); (M.P.M.); (F.T.); (S.I.)
| | - Elena Cozza
- Cardiology Unit, Department of Cardiac, Thoracic and Vascular Sciences and Public Health, University of Padua, 35128 Padua, Italy; (G.M.); (C.M.D.); (M.T.S.); (F.A.); (A.C.); (M.P.M.); (F.T.); (S.I.)
| | - Nicola Pradegan
- Cardiac Surgery Unit, Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padua, 35122 Padua, Italy; (N.P.); (C.T.); (G.G.)
| | - Chiara Tessari
- Cardiac Surgery Unit, Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padua, 35122 Padua, Italy; (N.P.); (C.T.); (G.G.)
| | - Carlo Maria Dellino
- Cardiology Unit, Department of Cardiac, Thoracic and Vascular Sciences and Public Health, University of Padua, 35128 Padua, Italy; (G.M.); (C.M.D.); (M.T.S.); (F.A.); (A.C.); (M.P.M.); (F.T.); (S.I.)
| | - Maria Teresa Savo
- Cardiology Unit, Department of Cardiac, Thoracic and Vascular Sciences and Public Health, University of Padua, 35128 Padua, Italy; (G.M.); (C.M.D.); (M.T.S.); (F.A.); (A.C.); (M.P.M.); (F.T.); (S.I.)
| | - Filippo Amato
- Cardiology Unit, Department of Cardiac, Thoracic and Vascular Sciences and Public Health, University of Padua, 35128 Padua, Italy; (G.M.); (C.M.D.); (M.T.S.); (F.A.); (A.C.); (M.P.M.); (F.T.); (S.I.)
| | - Annagrazia Cecere
- Cardiology Unit, Department of Cardiac, Thoracic and Vascular Sciences and Public Health, University of Padua, 35128 Padua, Italy; (G.M.); (C.M.D.); (M.T.S.); (F.A.); (A.C.); (M.P.M.); (F.T.); (S.I.)
| | - Martina Perazzolo Marra
- Cardiology Unit, Department of Cardiac, Thoracic and Vascular Sciences and Public Health, University of Padua, 35128 Padua, Italy; (G.M.); (C.M.D.); (M.T.S.); (F.A.); (A.C.); (M.P.M.); (F.T.); (S.I.)
| | - Francesco Tona
- Cardiology Unit, Department of Cardiac, Thoracic and Vascular Sciences and Public Health, University of Padua, 35128 Padua, Italy; (G.M.); (C.M.D.); (M.T.S.); (F.A.); (A.C.); (M.P.M.); (F.T.); (S.I.)
| | - Andrea Igoren Guaricci
- Department of Emergency and Organ Transplantation, Institute of Cardiovascular Disease, University Hospital “Policlinico” of Bari, 70124 Bari, Italy;
| | | | - Gino Gerosa
- Cardiac Surgery Unit, Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padua, 35122 Padua, Italy; (N.P.); (C.T.); (G.G.)
| | - Sabino Iliceto
- Cardiology Unit, Department of Cardiac, Thoracic and Vascular Sciences and Public Health, University of Padua, 35128 Padua, Italy; (G.M.); (C.M.D.); (M.T.S.); (F.A.); (A.C.); (M.P.M.); (F.T.); (S.I.)
| | - Raffaella Motta
- Unit of Radiology, Department of Medicine, Medical School, University of Padua, 35122 Padua, Italy;
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Schönbauer R, Hana F, Duca F, Koschutnik M, Donà C, Nitsche C, Sponder M, Lenz M, Lee J, Loewe C, Hengstenberg C, Mascherbauer J, Kammerlander A. Right Atrial Phasic Function in Heart Failure with Preserved Ejection Fraction: Cardiac Magnetic Resonance Feature Tracking and Outcomes. J Clin Med 2023; 12:5179. [PMID: 37629221 PMCID: PMC10455785 DOI: 10.3390/jcm12165179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Revised: 07/27/2023] [Accepted: 08/04/2023] [Indexed: 08/27/2023] Open
Abstract
BACKGROUND This study sought to investigate the prognostic impact of right atrial (RA) size and function in patients with heart failure with preserved ejection fraction (HFpEF) in sinus rhythm (SR) and atrial fibrillation (AF). METHODS Consecutive HFpEF patients were enrolled and indexed RA volumes and emptying fractions (RA-EF) were assessed by cardiac magnetic resonance imaging (CMR). For patients in SR, feature tracking of the RA wall was performed during CMR. In addition, all patients underwent right and left heart catheterization and 6 min walk distance (6MWD) and N-terminal prohormone of brain natriuretic peptide (NT-proBNP) evaluations. We prospectively followed patients and used Cox regression models to determine the association of RA size and function with a composite endpoint of heart failure hospitalization and cardiovascular death. RESULTS A total of 188 patients (71% female patients, 70 ± 8 years old) were included. Ninety-two patients (49%) were in persistent AF. Eighty-five patients reached the combined endpoint during a follow-up of 69 (42-97) months. After a multivariate cox regression analysis, the impaired RA reservoir strain (HR 0.949; 95% CI [0.909-0.990], p = 0.016), the RA reservoir strain rate (HR 0.991; 95% CI [0.983-0.999], p = 0.028), the RA conduit strain (HR 0.932; 95% CI [0.879-0.988], p = 0.019), and the RA conduit strain rate (HR 0.989; 95% CI [0.881-0.997], p = 0.011) were significantly associated with a worse outcome for patients in SR. In persistent AF, no RA imaging parameter was related to outcome after a multivariate regression analysis. CONCLUSIONS In HFpEF patients in SR, CMR parameters of impaired RA conduit and reservoir function are associated with dismal cardiovascular outcomes. In persistent AF, RA parameters lose their prognostic ability.
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Affiliation(s)
- Robert Schönbauer
- Department of Internal Medicine II, Division of Cardiology, Medical University of Vienna, 1090 Vienna, Austria; (R.S.); (F.H.); (F.D.); (M.K.); (C.D.); (C.N.); (M.S.); (M.L.); (J.L.); (C.H.)
| | - Fiona Hana
- Department of Internal Medicine II, Division of Cardiology, Medical University of Vienna, 1090 Vienna, Austria; (R.S.); (F.H.); (F.D.); (M.K.); (C.D.); (C.N.); (M.S.); (M.L.); (J.L.); (C.H.)
| | - Franz Duca
- Department of Internal Medicine II, Division of Cardiology, Medical University of Vienna, 1090 Vienna, Austria; (R.S.); (F.H.); (F.D.); (M.K.); (C.D.); (C.N.); (M.S.); (M.L.); (J.L.); (C.H.)
| | - Matthias Koschutnik
- Department of Internal Medicine II, Division of Cardiology, Medical University of Vienna, 1090 Vienna, Austria; (R.S.); (F.H.); (F.D.); (M.K.); (C.D.); (C.N.); (M.S.); (M.L.); (J.L.); (C.H.)
| | - Carolina Donà
- Department of Internal Medicine II, Division of Cardiology, Medical University of Vienna, 1090 Vienna, Austria; (R.S.); (F.H.); (F.D.); (M.K.); (C.D.); (C.N.); (M.S.); (M.L.); (J.L.); (C.H.)
| | - Christian Nitsche
- Department of Internal Medicine II, Division of Cardiology, Medical University of Vienna, 1090 Vienna, Austria; (R.S.); (F.H.); (F.D.); (M.K.); (C.D.); (C.N.); (M.S.); (M.L.); (J.L.); (C.H.)
| | - Michael Sponder
- Department of Internal Medicine II, Division of Cardiology, Medical University of Vienna, 1090 Vienna, Austria; (R.S.); (F.H.); (F.D.); (M.K.); (C.D.); (C.N.); (M.S.); (M.L.); (J.L.); (C.H.)
| | - Max Lenz
- Department of Internal Medicine II, Division of Cardiology, Medical University of Vienna, 1090 Vienna, Austria; (R.S.); (F.H.); (F.D.); (M.K.); (C.D.); (C.N.); (M.S.); (M.L.); (J.L.); (C.H.)
| | - Jonghui Lee
- Department of Internal Medicine II, Division of Cardiology, Medical University of Vienna, 1090 Vienna, Austria; (R.S.); (F.H.); (F.D.); (M.K.); (C.D.); (C.N.); (M.S.); (M.L.); (J.L.); (C.H.)
| | - Christian Loewe
- Department of Bioimiging and Image-Guided Therapy, Division of Cardiovascular and Interventional Radiology, Medical University of Vienna, 1090 Vienna, Austria;
| | - Christian Hengstenberg
- Department of Internal Medicine II, Division of Cardiology, Medical University of Vienna, 1090 Vienna, Austria; (R.S.); (F.H.); (F.D.); (M.K.); (C.D.); (C.N.); (M.S.); (M.L.); (J.L.); (C.H.)
| | - Julia Mascherbauer
- Department of Internal Medicine II, Division of Cardiology, Medical University of Vienna, 1090 Vienna, Austria; (R.S.); (F.H.); (F.D.); (M.K.); (C.D.); (C.N.); (M.S.); (M.L.); (J.L.); (C.H.)
| | - Andreas Kammerlander
- Department of Internal Medicine II, Division of Cardiology, Medical University of Vienna, 1090 Vienna, Austria; (R.S.); (F.H.); (F.D.); (M.K.); (C.D.); (C.N.); (M.S.); (M.L.); (J.L.); (C.H.)
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Baudo M, Benussi S. Left atrial function assessment to refine indications to mitral valve surgery. Eur J Cardiothorac Surg 2023:7175423. [PMID: 37216916 DOI: 10.1093/ejcts/ezad192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Accepted: 05/19/2023] [Indexed: 05/24/2023] Open
Affiliation(s)
- Massimo Baudo
- Department of Cardiac Surgery. ASST Spedali Civili di Brescia, University of Brescia. Brescia, . Italy
| | - Stefano Benussi
- Department of Cardiac Surgery. ASST Spedali Civili di Brescia, University of Brescia. Brescia, . Italy
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7
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Zoroufian A, Sahebjam M, Rezaee M, Hosseini K, Fallahzadeh A, Jalali A, Salehi S. Evaluating the pure effect of weight on cardiac function in patients with cardiac syndrome X. Echocardiography 2023. [PMID: 37195205 DOI: 10.1111/echo.15589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 03/16/2023] [Accepted: 05/02/2023] [Indexed: 05/18/2023] Open
Abstract
BACKGROUND Obese patients have more coronary artery disease (CAD) risk factors that may affect myocardial function. We aimed to assess the ability of echocardiography-derived conventional parameters, left atrial strain, and global longitudinal strain to detect early diastolic and systolic dysfunction in obese individuals with almost no CAD risk factors. METHOD We studied 100 participants with structurally normal hearts, ejection fractions above 50%, almost normal coronary arteries in coronary angiogram (syndrome X), and no cardiovascular risk factor except dyslipidemia. Participants were classified as normal-weight (BMI < 25.0 kg/m2 , n = 28) and high-weight (BMI ≥ 25.0 kg/m2 , n = 72). Conventional echocardiographic parameters and two-dimensional speckle tracking (2DSTE) were used to measure peak LA strain and global longitudinal strain to evaluate diastolic and systolic function, respectively. RESULT There was no significant difference in the standard and conventional echocardiographic parameters between the two groups. 2DSTE echocardiographic parameters of the longitudinal deformation of the LV myocardium were not significantly different within the two groups. However, there were significant differences between the subjects with normal-weight and high-weight in terms of LA strain (34.51 ± 8.98% vs. 39.06 ± 8.62%, p = .021). The normal-weight group had lower LA strain, in compression with the high-weight group. All echocardiographic parameters were in the normal range. CONCLUSION In the present study we demonstrated that global longitudinal subendocardial deformations, for the evaluation of systolic function, and conventional echocardiographic parameters, for the evaluation of diastolic function, were not significantly different between normal- and high-weight groups. Although LA strain was higher among overweight patients, it was not above the normal range of diastolic dysfunction.
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Affiliation(s)
- Arezou Zoroufian
- Tehran Heart Center, Cardiovascular Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Sahebjam
- Tehran Heart Center, Cardiovascular Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Malihe Rezaee
- Tehran Heart Center, Cardiovascular Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran
- School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Kaveh Hosseini
- Tehran Heart Center, Cardiovascular Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Aida Fallahzadeh
- Tehran Heart Center, Cardiovascular Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Arash Jalali
- Tehran Heart Center, Cardiovascular Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Safoura Salehi
- Tehran Heart Center, Cardiovascular Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran
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8
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Li H, Wang H, Wang T, Jin C, Lu M, Liu B. Different phenotype of left atrial function impairment in patients with hypertrophic cardiomyopathy and hypertension: comparison of healthy controls. Front Cardiovasc Med 2023; 10:1027665. [PMID: 37234371 PMCID: PMC10206117 DOI: 10.3389/fcvm.2023.1027665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 04/26/2023] [Indexed: 05/27/2023] Open
Abstract
Background The impairment of atrial function and atrial-ventricular coupling in diseases with left ventricular (LV) hypertrophy has been increasingly recognized. This study compares left atrium (LA) and right atrium (RA) function, as well as LA-LV coupling, in patients with hypertrophic cardiomyopathy (HCM) and hypertension (HTN) with preserved LV ejection fraction (EF), using cardiovascular magnetic resonance feature tracking (CMR-FT). Methods Fifty-eight HCM patients, 44 HTN patients, and 25 healthy controls were retrospectively enrolled. LA and RA functions were compared among the three groups. LA-LV correlations were evaluated in the HCM and HTN groups. Results LA reservoir (LA total EF, ɛs, and SRs), conduit (LA passive EF, ɛe, SRe), and booster pump (LA booster EF, ɛa, SRa) functions were significantly impaired in HCM and HTN patients compared to healthy controls (HCM vs. HTN vs. healthy controls: ɛs, 24.8 ± 9.8% vs. 31.3 ± 9.3% vs. 25.2 ± 7.2%; ɛe, 11.7 ± 6.7% vs. 16.8 ± 6.9% vs. 25.5 ± 7.5%; ɛa, 13.1 ± 5.8% vs. 14.6 ± 5.5% vs. 16.5 ± 4.5%, p < 0.05). Reservoir and conduit functions were more impaired in HCM patients compared to HTN patients (p < 0.05). LA strains demonstrated significant correlations with LV EF, LV mass index, LV MWT, global longitudinal strain parameters, and native T1 in HCM patients (p < 0.05). The only correlations in HTN were observed between LA reservoir strain (ɛs) and booster pump strain (ɛa) with LV GLS (p < 0.05). RA reservoir function (RA ɛs, SRs) and conduit function (RA ɛe, SRe) were significantly impaired in HCM and HTN patients (p < 0.05), while RA booster pump function (RA ɛa, SRa) was preserved. Conclusions LA functions were impaired in HCM and HTN patients with preserved LV EF, with reservoir and conduit functions more affected in HCM patients. Moreover, different LA-LV couplings were apparent in two different diseases, and abnormal LA-LV coupling was emphasized in HTN. Decreased RA reservoir and conduit strains were evident in both HCM and HTN, while booster pump strain was preserved.
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Affiliation(s)
- Hongwen Li
- Department of Radiology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Haibao Wang
- Department of Radiology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Tingting Wang
- Cardiac Imaging Center, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Chaolong Jin
- Cardiac Imaging Center, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Minjie Lu
- Department of Magnetic Resonance Imaging, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Key Laboratory of Cardiovascular Imaging (Cultivation), Chinese Academy of Medical Sciences, Beijing, China
| | - Bin Liu
- Department of Radiology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
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9
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Carluccio E, Cameli M, Rossi A, Dini FL, Biagioli P, Mengoni A, Jacoangeli F, Mandoli GE, Pastore MC, Maffeis C, Ambrosio G. Left Atrial Strain in the Assessment of Diastolic Function in Heart Failure: A Machine Learning Approach. Circ Cardiovasc Imaging 2023; 16:e014605. [PMID: 36752112 DOI: 10.1161/circimaging.122.014605] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
BACKGROUND Diastolic dysfunction (DD) assessment in heart failure is still challenging. Peak atrial longitudinal strain (PALS) is strongly related to end-diastolic pressure and prognosis, but it is still not part of standard DD assessment. We tested the hypothesis that a machine learning approach would be useful to include PALS in DD classification and refine prognostic stratification. METHODS In a derivation cohort of 864 heart failure patients in sinus rhythm (age, 66.6±12 years; heart failure with reduced ejection fraction, n=541; heart failure with mildly reduced ejection fraction, n=129; heart failure with preserved ejection fraction, n=194), machine learning techniques were retrospectively applied to PALS and guideline-recommended diastolic variables. Outcome (death/heart failure rehospitalization) of the identified DD-clusters was compared with that by guidelines-based classification. To identify the best combination of variables able to classify patients in one of the identified DD-clusters, classification and regression tree analysis was applied (with DD-clusters as dependent variable and PALS plus guidelines-recommended diastolic variables as explanatory variables). The algorithm was subsequently validated in a prospective cohort of 189 heart failure outpatients (age, 65±13 years). RESULTS Three distinct echocardiographic DD-clusters were identified (cluster-1, n=212; cluster-2, n=376; cluster-3 DD, n=276), with modest agreement with guidelines-recommended classification (kappa=0.40; P<0.001). DD-clusters were predicted by a simple algorithm including E/A ratio, left atrial volume index, E/e' ratio, and PALS. After 36.5±29.4 months follow-up, 318 events occurred. Compared to guideline-based classification, DD-clusters showed a better association with events in multivariable models (C-index 0.720 versus 0.733, P=0.033; net reclassification improvement 0.166 [95% CI, 0.035-0.276], P=0.013), without interaction with ejection fraction category. In the validation cohort (median follow-up: 18.5 months), cluster-based classification better predicted outcome than guideline-based classification (C-index 0.80 versus 0.78, P=0.093). CONCLUSIONS Integrating PALS by machine learning algorithm in DD classification improves risk stratification over recommended current criteria, regardless of ejection fraction status. This proof of concept study needs further validation of the proposed algorithm to assess generalizability to other populations.
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Affiliation(s)
- Erberto Carluccio
- Cardiology and Cardiovascular Pathophysiology, S. Maria della Misericordia Hospital, University of Perugia, Italy (E.C., P.B., A.M., F.J., G.A.)
| | - Matteo Cameli
- Division of Cardiology, Department of Medical Biotechnologies, University of Siena, Italy (M.C., G.E.M., M.C.P.)
| | - Andrea Rossi
- Azienda Ospedaliero-Universitaria, Verona, Italy (A.R., C.M.)
| | - Frank Lloyd Dini
- Cardiac, Thoracic and Vascular Department, University of Pisa, Italy (F.L.D.)
| | - Paolo Biagioli
- Cardiology and Cardiovascular Pathophysiology, S. Maria della Misericordia Hospital, University of Perugia, Italy (E.C., P.B., A.M., F.J., G.A.)
| | - Anna Mengoni
- Cardiology and Cardiovascular Pathophysiology, S. Maria della Misericordia Hospital, University of Perugia, Italy (E.C., P.B., A.M., F.J., G.A.)
| | - Francesca Jacoangeli
- Cardiology and Cardiovascular Pathophysiology, S. Maria della Misericordia Hospital, University of Perugia, Italy (E.C., P.B., A.M., F.J., G.A.)
| | - Giulia Elena Mandoli
- Division of Cardiology, Department of Medical Biotechnologies, University of Siena, Italy (M.C., G.E.M., M.C.P.)
| | - Maria Concetta Pastore
- Division of Cardiology, Department of Medical Biotechnologies, University of Siena, Italy (M.C., G.E.M., M.C.P.)
| | | | - Giuseppe Ambrosio
- Cardiology and Cardiovascular Pathophysiology, S. Maria della Misericordia Hospital, University of Perugia, Italy (E.C., P.B., A.M., F.J., G.A.)
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10
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Yu XY, Shi JW, Rong YS, Chen YL, Liu TW, Zang YR, Fu ZA, Zhang JM, Han ZF, Liu ZG. The role of atria in ventricular fibrillation after continuous-flow left ventricular assist device implantation in ovine model. Front Cardiovasc Med 2023; 9:1000352. [PMID: 36698959 PMCID: PMC9868250 DOI: 10.3389/fcvm.2022.1000352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 12/19/2022] [Indexed: 01/11/2023] Open
Abstract
Objectives This study attempted to explore the hemodynamics and potential mechanisms driving pulmonary circulation in status of ventricular fibrillation (VF) following continuous-flow left ventricular assist device (CF-LVAD) implantation. Methods An ovine CF-LVAD model was built in small-tailed Han sheep, with the pump speed set as 2,400 rpm. VF was induced following ventricular tachycardia using a temporary pacemaker probe to stimulate the right and left ventricular free walls. The central venous pressure (CVP), pump flow (PF), pulmonary artery flow (PAF) and other major indicators were observed and recorded after VF. Results Low-flow systemic and pulmonary circulation could be sustained for 60 min under VF with sinus atrial rhythm after CF-LVAD implantation. The CVP gradually increased. The mean PF declined from 1.80 to 1.20 L/min, and the mean PAF decreased from 1.62 L/min to 0.87 L/min. Under VF with atrial fibrillation, the systemic and pulmonary circulation couldn't be sustained. The CVP jumped from the 5 mmHg baseline to 12 mmHg, the mean PF rapidly decreased from 3.45 L/min to 0.79 L/min, and the PAF declined from 3.94 L/min to 0.77 L/min. Conclusion The atrial rhythm and function might be essential for the circulation maintenance in patients with VF after CF-LVAD implantation.
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Affiliation(s)
- Xin-Yi Yu
- Department of Cardiovascular Surgery, TEDA International Cardiovascular Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China
| | - Jian-Wei Shi
- Department of Cardiovascular Surgery, TEDA International Cardiovascular Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China
| | - Yan-Sheng Rong
- Department of Anesthesiology, TEDA International Cardiovascular Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China
| | - Yuan-Lu Chen
- Department of Cardiac Electrophysiology, TEDA International Cardiovascular Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China
| | - Tian-Wen Liu
- Laboratory Animal Center, TEDA International Cardiovascular Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China
| | - Yi-Rui Zang
- Department of Cardiovascular Surgery, TEDA International Cardiovascular Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China
| | - Ze-An Fu
- Department of Cardiovascular Surgery, TEDA International Cardiovascular Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China,Cardiovascular Clinical College of Tianjin Medical University, Tianjin, China
| | - Jie-Min Zhang
- Laboratory Animal Center, TEDA International Cardiovascular Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China
| | - Zhi-Fu Han
- ROCOR Medical Technology Co., Ltd., Tianjin, China
| | - Zhi-Gang Liu
- Department of Cardiovascular Surgery, TEDA International Cardiovascular Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China,Cardiovascular Clinical College of Tianjin Medical University, Tianjin, China,*Correspondence: Zhi-Gang Liu,
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11
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Yin L, Mei J, Dong J, Qu X, Jiang Y. Association of sodium intake with adverse left atrial function and left atrioventricular coupling in Chinese. J Hypertens 2023; 41:159-170. [PMID: 36453659 PMCID: PMC9794161 DOI: 10.1097/hjh.0000000000003317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 08/17/2022] [Accepted: 09/29/2022] [Indexed: 12/03/2022]
Abstract
OBJECTIVES High sodium intake is strongly associated with hypertension and obesity. This study aims to investigate the relationship between 24-h urinary sodium (a surrogate measure of sodium intake), ambulatory blood pressure parameters, left atrial function, and left atrioventricular coupling. Further, we intend to examine whether blood pressure and BMI might be mediators of the relationship between 24-h urinary sodium and subclinical cardiac function. METHODS Our study had 398 participants, all of whom were subjected to 24-h urine collection, 24-h ambulatory blood pressure measurement, and cardiac magnetic resonance imaging. RESULTS The average age of the participants was 55.70 ± 11.30 years old. The mean urinary sodium of the participants was 172.01 ± 80.24 mmol/24 h. After adjusting for age, sex, history of diabetes, smoking status, alcohol consumption, and use of diuretics, 24-h urinary sodium was correlated with multiple ambulatory blood pressure parameters, BMI, left atrial function, and the left atrioventricular coupling index (LACI) (P < 0.05). Mediation analysis showed that BMI explained 16% of the indirect effect of 24-h urinary sodium and left atrial function and 30% of the indirect effect of LACI. Independent of the mediator, 24-h urinary sodium had a significant direct effect on left atrial function and left atrioventricular coupling. CONCLUSIONS Higher 24-h urinary sodium was associated with a greater BMI as well as poor left atrial function and left atrioventricular coupling, and the BMI mediated the relationship between 24-h urinary sodium and subclinical left cardiac function. Furthermore, and more importantly, 24-h urinary sodium may have directly affected the left atrial function and left atrioventricular coupling independent of intermediary factors.
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Affiliation(s)
- Lili Yin
- Second Affiliated Hospital of Dalian Medical University
| | - Jiajie Mei
- Second Affiliated Hospital of Dalian Medical University
| | - Jianli Dong
- Second Affiliated Hospital of Dalian Medical University
| | - Xiaofeng Qu
- Second Affiliated Hospital of Dalian Medical University
| | - Yinong Jiang
- First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, China
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12
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Bregasi A, Freeman JV, Curtis JP, Akar JG, Ortiz-Leon XA, Maia JH, Higgins AY, Matthews RV, Sinusas AJ, McNamara RL, Sugeng L, Lin BA. Abnormal left atrial body stiffness is predicted by appendage size: impact of appendage occlusion on left atrial mechanics assessed by pressure-volume analysis. Am J Physiol Heart Circ Physiol 2022; 323:H559-H568. [PMID: 35960632 PMCID: PMC9576173 DOI: 10.1152/ajpheart.00083.2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Atrial cardiomyopathy has been recognized as having important consequences for cardiac performance and clinical outcomes. The pathophysiological role of the left atrial (LA) appendage and the effect of percutaneous left atrial appendage occlusion (LAAO) upon LA mechanics is incompletely understood. We evaluated if changes in LA stiffness due to endocardial LAAO can be detected by LA pressure-volume (PV) analysis and whether stiffness parameters are associated with baseline characteristics. Patients undergoing percutaneous endocardial LAAO (n = 25) were studied using a novel PV analysis using near-simultaneous three-dimensional LA volume measurements by transesophageal echocardiography (TEE) and direct invasive LA pressure measurements. LA stiffness (dP/dV, change in pressure with change in volume) was calculated before and after LAAO. Overall LA stiffness significantly increased after LAAO compared with baseline (median, 0.41-0.64 mmHg/mL; P ≪ 0.001). LA body stiffness after LAAO correlated with baseline LA appendage size by indexed maximum depth (Spearman's rank correlation coefficient Rs = 0.61; P < 0.01). LA stiffness change showed an even stronger correlation with baseline LA appendage size by indexed maximum depth (Rs = 0.70; P < 0.001). We found that overall LA stiffness increases after endocardial LAAO. Baseline LA appendage size correlates with the magnitude of increase and LA body stiffness. These findings document alteration of LA mechanics after endocardial LAAO and suggest that the LA appendage modulates overall LA compliance.NEW & NOTEWORTHY Our study documents a correlation of LA appendage remodeling with the degree of chronically abnormal LA body stiffness. In addition, we found that LA appendage size was the baseline parameter that best correlated with the magnitude of a further increase in overall LA stiffness after appendage occlusion. These findings offer insights about the LA appendage and LA mechanics that are relevant to patients at risk for adverse atrial remodeling, especially candidates for LA appendage occlusion.
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Affiliation(s)
- Alda Bregasi
- Division of Cardiovascular Medicine, Department of Internal Medicine, Keck School of Medicine of University of Southern California, Los Angeles, California
| | - James V Freeman
- Section of Cardiovascular Medicine, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut
| | - Jeptha P Curtis
- Section of Cardiovascular Medicine, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut
| | - Joseph G Akar
- Section of Cardiovascular Medicine, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut
| | | | - Julia H Maia
- Section of Cardiovascular Medicine, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut
| | - Angela Y Higgins
- Section of Cardiovascular Medicine, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut
| | - Ray V Matthews
- Division of Cardiovascular Medicine, Department of Internal Medicine, Keck School of Medicine of University of Southern California, Los Angeles, California
| | - Albert J Sinusas
- Section of Cardiovascular Medicine, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut
- Department of Radiology and Biomedical Imaging, Yale University School of Medicine, New Haven, Connecticut
- Department of Biomedical Engineering, Yale University School of Engineering and Applied Science, New Haven, Connecticut
| | - Robert L McNamara
- Section of Cardiovascular Medicine, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut
| | - Lissa Sugeng
- Section of Cardiovascular Medicine, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut
| | - Ben A Lin
- Division of Cardiovascular Medicine, Department of Internal Medicine, Keck School of Medicine of University of Southern California, Los Angeles, California
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13
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DeVore GR, Klas B, Satou G, Sklansky M. Speckle Tracking Analysis to Evaluate the Size, Shape, and Function of the Atrial Chambers in Normal Fetuses at 20-40 Weeks of Gestation. J Ultrasound Med 2022; 41:2041-2057. [PMID: 34825711 DOI: 10.1002/jum.15888] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 10/28/2021] [Accepted: 10/31/2021] [Indexed: 06/13/2023]
Abstract
OBJECTIVES The purpose of this study was to use speckle tracking analysis to evaluate the size, shape, and function of the atrial chambers in normal fetuses and develop a z-score calculator that can be used in future studies in fetuses at risk for cardiovascular disease. METHODS The control group consisted of 200 normal fetuses examined between 20 and 40 weeks of gestation in which speckle tracking analysis of right (RA) and left (LA) atrial chambers was performed. The atrial end-diastolic and end-systolic endocardial borders for each chamber were identified from which measurements of atrial length, width, area, and volume were computed. Equations were derived using fractional polynomial regression analysis to compute z-score equations. RESULTS The LA end-diastolic volume, RA and LA end-diastolic area, length, base width, and mid-chamber widths increased with gestational age and fetal size. Left atrial emptying and ejection volumes increased with gestational age and fetal size. The fractional area change was significantly less for the RA than the LA. The LA base and mid-chamber fractional shortening were significantly greater than the RA. There was a significant difference between the RA and LA global contractile strain. CONCLUSION Mean and standard deviation equations for each of the measurements described in this study were computed to create a z-score calculator that can be utilized in the clinical environment when evaluating fetuses with suspected atrial pathology that could alter the size, shape, and function of the atrial chambers.
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Affiliation(s)
- Greggory R DeVore
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
- Department of Obstetrics and Gynecology, Wayne State University, Detroit, MI, USA
- Fetal Diagnostic Centers, Pasadena, Tarzana, and Lancaster, CA, USA
| | | | - Gary Satou
- Division of Pediatric Cardiology, Department of Pediatrics, Mattel Children's Hospital UCLA, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Mark Sklansky
- Division of Pediatric Cardiology, Department of Pediatrics, Mattel Children's Hospital UCLA, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
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14
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López L, Rossello X, Romaguera D, Alonso-Gómez ÁM, Toledo E, Fortuny E, Noris M, Mas-Lladó C, Fiol M, Ramallal R, Tojal-Sierra L, Alonso A, Fernandez-Palomeque C. The Palma Echo Platform: Rationale and Design of an Echocardiography Core Lab. Front Cardiovasc Med 2022; 9:909347. [PMID: 35800168 PMCID: PMC9253374 DOI: 10.3389/fcvm.2022.909347] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 05/30/2022] [Indexed: 11/13/2022] Open
Abstract
Background The metabolic syndrome (MetS) is associated with increased cardiovascular morbidity and mortality. Characterization of cardiac structural and functional abnormalities due to the MetS can help recognize individuals who would benefit the most from preventive interventions. Transthoracic echocardiography (TTE) provides an opportunity to identify those abnormalities in a reproducible and cost-efficient manner. In research settings, implementation of protocols for the acquisition and analysis of TTE images are key to ensure validity and reproducibility, thus facilitating answering relevant questions about the association of the MetS with cardiac alterations. Methods and Results The Palma Echo Platform (PEP) is a coordinated network that is built up to evaluate the underlying structural and functional cardiac substrate of participants with MetS. Repeated TTE will be used to evaluate 5-year changes in the cardiac structure and function in a group of 565 individuals participating in a randomized trial of a lifestyle intervention for the primary prevention of cardiovascular disease. The echocardiographic studies will be performed at three study sites, and will be centrally evaluated at the PEP core laboratory. Planned analyses will involve evaluating the effect of the lifestyle intervention on cardiac structure and function, and the association of the MetS and its components with changes in cardiac structure and function. Particular emphasis will be placed on evaluating parameters of left atrial structure and function, which have received more limited attention in past investigations. This PEP will be available for future studies addressing comparable questions. Conclusion In this article we describe the protocol of a central echocardiography laboratory for the study of functional and structural alterations of the MetS.
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Affiliation(s)
- Luis López
- Department of Cardiology, Hospital de Manacor, Manacor, Spain,Health Research Institute of the Balearic Islands (IdISBa), Palma, Spain
| | - Xavier Rossello
- Health Research Institute of the Balearic Islands (IdISBa), Palma, Spain,Department of Cardiology, Hospital Universitari Son Espases, Palma, Spain,*Correspondence: Xavier Rossello,
| | - Dora Romaguera
- Health Research Institute of the Balearic Islands (IdISBa), Palma, Spain,CIBER Physiopathology of Obesity and Nutrition (CIBEROBN), Madrid, Spain
| | - Ángel M. Alonso-Gómez
- CIBER Physiopathology of Obesity and Nutrition (CIBEROBN), Madrid, Spain,Bioaraba Health Research Institute, Osakidetza Basque Health Service, Araba University Hospital, University of the Basque Country Universidad del País Vasco/Euskal Herriko Unibertsitatea, Vitoria-Gasteiz, Spain
| | - Estefanía Toledo
- CIBER Physiopathology of Obesity and Nutrition (CIBEROBN), Madrid, Spain,Department of Preventive Medicine and Public Health, University of Navarra, Instituto de Investigación Sanitaria de Navarra, Pamplona, Spain
| | - Elena Fortuny
- Health Research Institute of the Balearic Islands (IdISBa), Palma, Spain,Department of Cardiology, Hospital Universitari Son Espases, Palma, Spain
| | - Marta Noris
- Health Research Institute of the Balearic Islands (IdISBa), Palma, Spain,Department of Cardiology, Hospital Universitari Son Espases, Palma, Spain
| | - Caterina Mas-Lladó
- Department of Cardiology, Hospital de Manacor, Manacor, Spain,Health Research Institute of the Balearic Islands (IdISBa), Palma, Spain
| | - Miquel Fiol
- Health Research Institute of the Balearic Islands (IdISBa), Palma, Spain,CIBER Physiopathology of Obesity and Nutrition (CIBEROBN), Madrid, Spain
| | - Raul Ramallal
- Department of Cardiology, University Hospital of Navarra, Servicio Navarro de Salud Osasunbidea, IDISNA, Pamplona, Spain
| | - Lucas Tojal-Sierra
- Bioaraba Health Research Institute, Osakidetza Basque Health Service, Araba University Hospital, University of the Basque Country Universidad del País Vasco/Euskal Herriko Unibertsitatea, Vitoria-Gasteiz, Spain
| | - Alvaro Alonso
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA, United States
| | - Carlos Fernandez-Palomeque
- Health Research Institute of the Balearic Islands (IdISBa), Palma, Spain,Department of Cardiology, Hospital Universitari Son Espases, Palma, Spain
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15
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Fei M, Li M, Ran H, Sheng Z, Dong J, Zhang P. Four-dimensional quantification on left atrial volume-strain in coronary heart disease patients without regional wall motion abnormalities: Correlation with the severity of coronary stenosis. Echocardiography 2022; 39:758-767. [PMID: 35505628 DOI: 10.1111/echo.15355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 03/17/2022] [Accepted: 04/11/2022] [Indexed: 11/27/2022] Open
Abstract
OBJECTIVE Echocardiography is a time and cost-effective imaging modality, providing evidence of myocardial ischemia by detecting the regional wall motion abnormalities (RWMA). However, quite a few coronary heart disease (CHD) patients do not present RWMA. The left atrium (LA) plays an irreplaceable role in determining the prognosis and risk stratification of cardiovascular disease including CHD. In this present study, we intend to explore the myocardial mechanics changes of LA mainly using four-dimensional (4D) LA quantitative volume-strain in CHD patients without RWMA at rest but were confirmed by coronary angiography (CAG) and to figure out several variables of the LA that could contribute to the identification of those patients. METHODS We prospectively enrolled 76 patients who underwent two-dimensional echocardiography (2DE), four-dimensional echocardiography (4DE), and CAG for suspected CHD but without echocardiographic visible RWMA at rest. Patients diagnosed with CHD by CAG were furtherly divided into three groups according to the extent of coronary stenosis accessed by Gensini score (GS) as the mild, moderate, and severe CHD group. Twenty-four subjects with negative CAG results served as the control group. LA end-systolic anteroposterior diameter (LAAPD) and biplane LV ejection fraction (Biplane LVEF) were measured by 2DE; LA maximum volume (LAVmax), LA minimum volume (LAVmin), LA volume at the onset of atrial contraction (LAVpreA), LAVmax index (LAVmaxI), LA ejection volume (LAEV), LA ejection fraction (LAEF) accompanied by LA longitudinal strain during reservoir phase (LASr), conduit phase (LAScd), contraction phase (LASct) and LA circumferential strain during reservoir phase (LASr_c), conduit phase (LAScd_c), contraction phase (LASct_c) were measured by 4DE automatically. We compared these parameters between groups, explored how they change and whether they are related to the CHD severity. RESULTS LAEF, LASr_c, and LASct_c was lower in CHD group compared with the control group (p = .031, .002, .004, respectively). Pearson correlation analysis showed that LASr, LASct, LASr_c, and LASct_c negatively correlated with the GS. Additionally, LASr of patients in the severe CHD group decreased significantly compared with those in the mild CHD group, moderate CHD group, and control group, demonstrating the highest area under the receiver operating characteristic (ROC) curve (AUC) (AUC = .736 [p = .003, 95% CI .589-.884], sensitivity 67.8%, specificity 70.6%) with the cut-off value of 17.5% for predicting severe CHD patients. CONCLUSION Four-dimensional LA strain may provide new insight into identification and management for CHD patients and correlate with CHD severity. LASr showed good sensitivity (67.8%) and specificity (70.6%) for diagnosing severe CHD individuals.
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Affiliation(s)
- Mengyao Fei
- Department of Cardiovascular Ultrasound, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Miao Li
- Department of Cardiovascular Ultrasound, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Hong Ran
- Department of Cardiovascular Ultrasound, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Zongxiang Sheng
- Department of Cardiovascular Ultrasound, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Jing Dong
- Department of Cardiovascular Ultrasound, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Pingyang Zhang
- Department of Cardiovascular Ultrasound, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
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Caminiti G, Perrone MA, Iellamo F, D'Antoni V, Catena M, Franchini A, Volterrani M. Acute Left Atrial Response to Different Eccentric Resistance Exercise Loads in Patients with Heart Failure with Middle Range Ejection Fraction: A Pilot Study. J Pers Med 2022; 12:689. [PMID: 35629111 DOI: 10.3390/jpm12050689] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Revised: 04/16/2022] [Accepted: 04/22/2022] [Indexed: 02/04/2023] Open
Abstract
In this study, we aimed to assess acute changes occurring on atrial function following single bouts of eccentric resistance exercise (ECC-RE) performed at two different loads. Twenty-five patients with chronic heart failure with middle range ejection fraction (HFmrEF) participated in three experimental sessions in a randomized order and on separate days: two sessions of ECC RE at 20% (ECC-20) of one-repetition maximum (1-RM) and 50% (ECC-50) 1-RM, and one session of control, without exercise. Each session lasted three minutes. Before and immediately after the sessions, patients underwent echocardiography and blood pressure and heart rate measurement. Peak atrial longitudinal strain (PALS) and peak atrial contractile strain (PACS) significantly increased after both ECC-20 (+16.3%) and ECC-50 (+18.1%) compared to control (between sessions p = 0.022). Peak atrial contractile strain (PACS) significantly increased after ECC-50 (+28.4%) compared to ECC-20 (+17.0%) and control (between sessions p = 0.034). The ratio of transmitral and annular velocities (E/E') increased significantly after ECC-20 (+10.4%) and ECC-50 (+19.0%) compared to control (between groups p = 0.003). EF, left ventricular longitudinal strain, and stroke volume did not change after ECC-RE sessions compared to control. Cardiac output increased significantly after ECC-20 and ECC-50 compared to control, (between groups p = 0.025). In conclusion, both ECC-RE sessions were well tolerated, and LA functional reserve was properly mobilized in response to ECC-RE in patients with HFmrEF. Cardiac output increased at the cost of an increased LV filling pressure, but no detrimental changes of LV function occurred.
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17
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Tuleski GL, Pscheidt MJGR, Dos Santos JP, Sousa MG. Timolol 0.5% ophthalmic solution influences cardiac function in healthy cats. J Feline Med Surg 2022; 24:e57-e69. [PMID: 35470745 DOI: 10.1177/1098612x221083372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVES The aim of this study was to ascertain the effect of a drop of timolol 0.5% ophthalmic solution on the systolic function of the left ventricle (LV) and left atrium (LA), and to confirm if timolol helped appraisal of diastolic function by reducing heart rate (HR) and separating the transmitral outflow waves from tissue Doppler imaging (TDI). METHODS A total of 41 client-owned healthy cats underwent two echocardiograms 20 mins apart. The timolol group (33 cats) received a drop of timolol solution after the first examination. Standard and speckle-tracking echocardiography evaluated the LV and LA function of both groups at the two time points evaluated. RESULTS Timolol reduced HR (19%), and fractional shortening from LV (20.3%) and LA (16.6%). Septal S' decreased by 51% (from 7.7 to 5.2 cm/s) and lateral S' dropped by 43.1% (7.3 to 5.1 cm/s). Most longitudinal techniques did not change after timolol, including the mitral annular plane systolic excursion from the interventricular annulus, tricuspid annular plane systolic excursion, LV longitudinal strain and LV tissue motion annular displacement. The isovolumic relaxation time increased by 15.2% (from 54 to 64.6 ms), with most cats presenting this variable above the reference (>60 ms). Timolol did not support diastolic assessment, enabling evaluation in only 2/11 cats when using lateral TDI and 1/9 cats using septal TDI. Regarding side effects, miosis occurred in 18 cats (54.5%). CONCLUSIONS AND RELEVANCE Timolol reduced systolic function, decreasing standard echocardiographic variables. Regarding diastolic evaluation, although timolol decreased HR, it did not separate the mitral diastolic waves, as expected.
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Affiliation(s)
- Giovana Lr Tuleski
- Laboratory of Comparative Cardiology, Department of Veterinary Medicine, Federal University of Paraná (UFPR), Curitiba, Paraná, Brazil
| | | | - Júlio Pereira Dos Santos
- Laboratory of Comparative Cardiology, Department of Veterinary Medicine, Federal University of Paraná (UFPR), Curitiba, Paraná, Brazil
| | - Marlos Gonçalves Sousa
- Laboratory of Comparative Cardiology, Department of Veterinary Medicine, Federal University of Paraná (UFPR), Curitiba, Paraná, Brazil
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18
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Mostafa MR, Magdi M, Al-Abdouh A, Abusnina W, Elbanna M, Abdelazeem B, Renjithal SLM, Mamas MA, Shah J. A systematic review and meta-analysis of the impact of the left atrial appendage closure on left atrial function. Clin Cardiol 2022; 45:614-621. [PMID: 35366380 PMCID: PMC9175246 DOI: 10.1002/clc.23824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 03/20/2022] [Indexed: 11/28/2022] Open
Abstract
Background Left atrial (LA) appendage closure (LAAC) is effective in patients with atrial fibrillation who are not candidates for long‐term anticoagulation. However, the impact of LAAC on LA function is unknown. The aim of this study is to evaluate the impact of LAAC on atrial function. Methods This meta‐analysis was conducted according to Preferred Reporting Items for Systematic Reviews and Meta‐Analyses guidelines. A search strategy was designed to utilize PubMed/Medline, EMBASE, and Google scholar for studies showing the effect of LAAC on the LA function from inception to November 20, 2021. The standardized mean difference (SMD) was calculated from the means and standard deviations. Results Of 247 studies initially identified, 8 studies comprising 260 patients were included in the final analysis. There was a significant increase in LA emptying fraction following LAAC compared with preoperative function (SMD: 0.53; 95% confidence interval [CI]: 0.04–1.01; p = .03; I2 = 75%). In contrast, there were no significant differences in LA volume (SMD: −0.07; 95% CI: −0.82–0.69; p = .86; I2 = 92%) peak atrial longitudinal strain (SMD: 0.50; 95% CI: −0.08–1.08; p = .09; I2 = 89%), peak atrial contraction strain (SMD: 0.38; 95% CI: −0.22–0.99; p = .21; I2 = 81%), strain during atrial contraction (SMD: −0.24; 95% CI: −0.61–0.13; p = .20; I2 = 0%), strain during ventricular systole (SMD: 0.47; 95% CI: −0.32–1.27; p = .24; I2 = 89%), strain during ventricular diastole (SMD: 0.09; 95% CI: −0.32–0.51; p = .66; I2 = 65%). Conclusion LAAC is associated with improvement in the left atrial emptying fraction, but did not significantly influence other parameters.
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Affiliation(s)
- Mostafa Reda Mostafa
- Department of Internal Medicine, Rochester Regional Health, Unity Hospital, Greece, New York, USA
| | - Mohamed Magdi
- Department of Internal Medicine, Rochester Regional Health, Unity Hospital, Greece, New York, USA
| | - Ahmad Al-Abdouh
- Department of Medicine, University of Kentucky, Lexington, Kentucky, USA
| | - Waiel Abusnina
- Department of Cardiology, Creighton University School of Medicine, Omaha, Nebraska, USA
| | | | - Basel Abdelazeem
- Department of Medicine, McLaren Health System, Flint, Michigan, USA
| | | | - Mamas A Mamas
- Department of Cardiology, University of Manchester, Manchester, UK
| | - Jaffer Shah
- New York State Department of Health, New York, USA
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19
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Affiliation(s)
- Brian D Hoit
- Departments of Medicine, Physiology, and Biophysics, Case Western Reserve University, Cleveland, Ohio, USA; Department of Medicine, University Hospitals Cleveland Medical Center, Cleveland, Ohio, USA.
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20
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Bandera F, Martone R, Chacko L, Ganesananthan S, Gilbertson JA, Ponticos M, Lane T, Martinez-Naharro A, Whelan C, Quarta C, Rowczenio D, Patel R, Razvi Y, Lachmann H, Wechelakar A, Brown J, Knight D, Moon J, Petrie A, Cappelli F, Guazzi M, Potena L, Rapezzi C, Leone O, Hawkins PN, Gillmore JD, Fontana M. Clinical Importance of Left Atrial Infiltration in Cardiac Transthyretin Amyloidosis. JACC Cardiovasc Imaging 2021; 15:17-29. [PMID: 34419399 PMCID: PMC8724534 DOI: 10.1016/j.jcmg.2021.06.022] [Citation(s) in RCA: 61] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 05/20/2021] [Accepted: 06/01/2021] [Indexed: 01/01/2023]
Abstract
Objectives The aim of this study was to characterize left atrial (LA) pathology in explanted hearts with transthyretin amyloid cardiomyopathy (ATTR-CM); LA mechanics using echocardiographic speckle-tracking in a large cohort of patients with ATTR-CM; and to study the association with mortality. Background The clinical significance of LA involvement in ATTR-CM is of great clinical interest. Methods Congo red staining and immunohistochemistry was performed to assess the presence, type, and extent of amyloid and associated changes in 5 explanted ATTR-CM atria. Echo speckle tracking was used to assess LA reservoir, conduit, contractile function, and stiffness in 906 patients with ATTR-CM (551 wild-type (wt)-ATTR-CM; 93 T60A-ATTR-CM; 241 V122I-ATTR-CM; 21 other). Results There was extensive ATTR amyloid infiltration in the 5 atria, with loss of normal architecture, vessels remodeling, capillary disruption, and subendocardial fibrosis. Echo speckle tracking in 906 patients with ATTR-CM demonstrated increased atrial stiffness (median [25th-75th quartile] 1.83 [1.15-2.92]) that remained independently associated with prognosis after adjusting for known predictors (lnLA stiff: HR: 1.23; 95% CI: 1.03-1.49; P = 0.029). There was substantial impairment of the 3 phasic functional atrial components (reservoir 8.86% [5.94%-12.97%]; conduit 6.5% [4.53%-9.28%]; contraction function 4.0% [2.29%-6.56%]). Atrial contraction was absent in 22.1% of patients whose electrocardiograms showed sinus rhythm (SR) “atrial electromechanical dissociation” (AEMD). AEMD was associated with poorer prognosis compared with patients with SR and effective mechanical contraction (P = 0.0018). AEMD conferred a similar prognosis to patients in atrial fibrillation. Conclusions The phenotype of ATTR-CM includes significant infiltration of the atrial walls, with progressive loss of atrial function and increased stiffness, which is a strong independent predictor of mortality. AEMD emerged as a distinctive phenotype identifying patients in SR with poor prognosis.
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Affiliation(s)
- Francesco Bandera
- Cardiology University Department, Heart Failure Unit, IRCCS Policlinico San Donato, San Donato Milanese, Milan, Italy; Department for Biomedical Sciences for Health, University of Milano, Milan, Italy
| | - Raffaele Martone
- Tuscan Regional Amyloid Center, Careggi University Hospital (AOUC), Florence, Italy
| | - Liza Chacko
- National Amyloidosis Centre, University College London, Royal Free Campus, London, United Kingdom
| | | | - Janet A Gilbertson
- National Amyloidosis Centre, University College London, Royal Free Campus, London, United Kingdom
| | - Markella Ponticos
- National Amyloidosis Centre, University College London, Royal Free Campus, London, United Kingdom
| | - Thirusha Lane
- National Amyloidosis Centre, University College London, Royal Free Campus, London, United Kingdom
| | - Ana Martinez-Naharro
- National Amyloidosis Centre, University College London, Royal Free Campus, London, United Kingdom
| | - Carol Whelan
- National Amyloidosis Centre, University College London, Royal Free Campus, London, United Kingdom
| | - Cristina Quarta
- National Amyloidosis Centre, University College London, Royal Free Campus, London, United Kingdom
| | - Dorota Rowczenio
- National Amyloidosis Centre, University College London, Royal Free Campus, London, United Kingdom
| | - Rishi Patel
- National Amyloidosis Centre, University College London, Royal Free Campus, London, United Kingdom
| | - Yousuf Razvi
- National Amyloidosis Centre, University College London, Royal Free Campus, London, United Kingdom
| | - Helen Lachmann
- National Amyloidosis Centre, University College London, Royal Free Campus, London, United Kingdom
| | - Ashutosh Wechelakar
- National Amyloidosis Centre, University College London, Royal Free Campus, London, United Kingdom
| | - James Brown
- National Amyloidosis Centre, University College London, Royal Free Campus, London, United Kingdom
| | - Daniel Knight
- National Amyloidosis Centre, University College London, Royal Free Campus, London, United Kingdom
| | - James Moon
- Barts Heart Centre, St Bartholomew's Hospital, West Smithfield, London, United Kingdom
| | - Aviva Petrie
- Eastman Dental Institute, University College London, Grays Inn Road, London, United Kingdom
| | - Francesco Cappelli
- Tuscan Regional Amyloid Center, Careggi University Hospital (AOUC), Florence, Italy
| | - Marco Guazzi
- Cardiology University Department, Heart Failure Unit, IRCCS Policlinico San Donato, San Donato Milanese, Milan, Italy; Department for Biomedical Sciences for Health, University of Milano, Milan, Italy
| | | | - Claudio Rapezzi
- University Cardiological Center, University of Ferrara, Italy; Maria Cecilia Hospital, GVM Care & Research, Cotignola (RA), Italy
| | - Ornella Leone
- Academic Hospital S. Orsola-Malpighi, Bologna, Italy
| | - Philip N Hawkins
- National Amyloidosis Centre, University College London, Royal Free Campus, London, United Kingdom
| | - Julian D Gillmore
- National Amyloidosis Centre, University College London, Royal Free Campus, London, United Kingdom
| | - Marianna Fontana
- National Amyloidosis Centre, University College London, Royal Free Campus, London, United Kingdom.
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21
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Affiliation(s)
- Barry A Borlaug
- The Department of Cardiovascular Medicine, Mayo Clinic Rochester, MN (B.A.B.)
| | - Michael D Nelson
- Department of Kinesiology and Applied Physiology and Advanced Imaging Laboratory, University of Texas at Arlington (M.D.N.)
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Zhang Z, Yang H, Li Y, Han J, Li Y, Meng X, Zhang H. The Effect of Minimally Invasive Thoracoscopic Left Atrial Appendage Excision on Cardiac Dynamic and Endocrine Function. Ann Thorac Cardiovasc Surg 2021; 27:49-55. [PMID: 32814727 PMCID: PMC8043023 DOI: 10.5761/atcs.oa.20-00029] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Purpose: Left atrial appendage (LAA) isolation is an effective surgical treatment for decreasing thromboembolic risk. We sought to evaluate the short-term effect of minimally invasive surgery with LAA excision on left atrial dynamic and endocrine function in atrial fibrillation (AF) patients. Methods: A total of 52 patients with paroxysmal AF undergoing minimally invasive surgery with LAA excision in Anzhen Hospital from October 2012 to June 2014 were enrolled in the study. The natriuretic peptide plasma level was determined by enzyme-linked immunosorbent assay (ELISA), and left atrial dynamic function was measured preprocedure by real-time three-dimensional echocardiography and postprocedure after 7 days and 3 months. Results: With the exception of six recurrences, 88.5% (46/52) of the patients were prospectively followed over 3 months in terms of their sinus rhythm postprocedure. No severe operative complications or embolism events occurred within those 3 months. Echocardiography showed a 3–6% decrease in left atrial volume postprocedure, and dynamic function was largely restored by 3 months. There was no significant change in natriuretic peptide levels, although a slight decrease was detected 7 days postprocedure, which gradually recovered by 3 months (P = 0.350). Conclusions: There are no significant differences in left atrial dynamics and natriuretic peptide secretion in AF patients after minimally invasive surgery with LAA excision.
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Affiliation(s)
- Zhenhua Zhang
- Cardiac Surgery Department, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Haiping Yang
- Cardiac Surgery Department, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Yuehuan Li
- Cardiac Surgery Department, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Jie Han
- Cardiac Surgery Department, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Yan Li
- Cardiac Surgery Department, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Xu Meng
- Cardiac Surgery Department, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Haibo Zhang
- Cardiac Surgery Department, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
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23
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Backhaus SJ, Lange T, George EF, Hellenkamp K, Gertz RJ, Billing M, Wachter R, Steinmetz M, Kutty S, Raaz U, Lotz J, Friede T, Uecker M, Hasenfuß G, Seidler T, Schuster A. Exercise Stress Real-Time Cardiac Magnetic Resonance Imaging for Noninvasive Characterization of Heart Failure With Preserved Ejection Fraction: The HFpEF-Stress Trial. Circulation 2021; 143:1484-1498. [PMID: 33472397 DOI: 10.1161/circulationaha.120.051542] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
BACKGROUND Right heart catheterization using exercise stress is the reference standard for the diagnosis of heart failure with preserved ejection fraction (HFpEF) but carries the risk of the invasive procedure. We hypothesized that real-time cardiac magnetic resonance (RT-CMR) exercise imaging with pathophysiologic data at excellent temporal and spatial resolution may represent a contemporary noninvasive alternative for diagnosing HFpEF. METHODS The HFpEF-Stress trial (CMR Exercise Stress Testing in HFpEF; URL: https://www.clinicaltrials.gov; Unique identifier: NCT03260621. URL: https://dzhk.de/; Unique identifier: DZHK-17) prospectively recruited 75 patients with echocardiographic signs of diastolic dysfunction and dyspnea on exertion (E/e'>8, New York Heart Association class ≥II) to undergo echocardiography, right heart catheterization, and RT-CMR at rest and during exercise stress. HFpEF was defined according to pulmonary capillary wedge pressure (≥15 mm Hg at rest or ≥25 mm Hg during exercise stress). RT-CMR functional assessments included time-volume curves for total and early (1/3) diastolic left ventricular filling, left atrial (LA) emptying, and left ventricular/LA long axis strain. RESULTS Patients with HFpEF (n=34; median pulmonary capillary wedge pressure at rest, 13 mm Hg; at stress, 27 mm Hg) had higher E/e' (12.5 versus 9.15), NT-proBNP (N-terminal pro-B-type natriuretic peptide; 255 versus 75 ng/L), and LA volume index (43.8 versus 36.2 mL/m2) compared with patients with noncardiac dyspnea (n=34; rest, 8 mm Hg; stress, 18 mm Hg; P≤0.001 for all). Seven patients were excluded because of the presence of non-HFpEF cardiac disease causing dyspnea on imaging. There were no differences in RT-CMR left ventricular total and early diastolic filling at rest and during exercise stress (P≥0.164) between patients with HFpEF and noncardiac dyspnea. RT-CMR revealed significantly impaired LA total and early (P<0.001) diastolic emptying in patients with HFpEF during exercise stress. RT-CMR exercise stress LA long axis strain was independently associated with HFpEF (adjusted odds ratio, 0.657 [95% CI, 0.516-0.838]; P=0.001) after adjustment for clinical and imaging measures and emerged as the best predictor for HFpEF (area under the curve at rest 0.82 versus exercise stress 0.93; P=0.029). CONCLUSIONS RT-CMR allows highly accurate identification of HFpEF during physiologic exercise and qualifies as a suitable noninvasive diagnostic alternative. These results will need to be confirmed in multicenter prospective research studies to establish widespread routine clinical use. Registration: URL: https://www.clinicaltrials.gov; Unique identifier: NCT03260621. URL: https://dzhk.de/; Unique identifier: DZHK-17.
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Affiliation(s)
- Sören J Backhaus
- From the Department of Cardiology and Pneumology, Georg-August University (S.J.B., T.L., E.F.G., K.H., M.B., R.W., U.R., G.H., T.S., A.S.), University Medical Center Göttingen, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Göttingen, Germany (S.J.B., T.L., E.F.G., K.H., M.S., U.R., J.L., T.F., M.U., G.H., T.S., A.S.)
| | - Torben Lange
- From the Department of Cardiology and Pneumology, Georg-August University (S.J.B., T.L., E.F.G., K.H., M.B., R.W., U.R., G.H., T.S., A.S.), University Medical Center Göttingen, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Göttingen, Germany (S.J.B., T.L., E.F.G., K.H., M.S., U.R., J.L., T.F., M.U., G.H., T.S., A.S.)
| | - Elisabeth F George
- From the Department of Cardiology and Pneumology, Georg-August University (S.J.B., T.L., E.F.G., K.H., M.B., R.W., U.R., G.H., T.S., A.S.), University Medical Center Göttingen, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Göttingen, Germany (S.J.B., T.L., E.F.G., K.H., M.S., U.R., J.L., T.F., M.U., G.H., T.S., A.S.)
| | - Kristian Hellenkamp
- From the Department of Cardiology and Pneumology, Georg-August University (S.J.B., T.L., E.F.G., K.H., M.B., R.W., U.R., G.H., T.S., A.S.), University Medical Center Göttingen, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Göttingen, Germany (S.J.B., T.L., E.F.G., K.H., M.S., U.R., J.L., T.F., M.U., G.H., T.S., A.S.)
| | - Roman J Gertz
- Department of Diagnostic and Interventional Radiology, University Hospital Cologne, Germany (R.J.G.)
| | - Marcus Billing
- From the Department of Cardiology and Pneumology, Georg-August University (S.J.B., T.L., E.F.G., K.H., M.B., R.W., U.R., G.H., T.S., A.S.), University Medical Center Göttingen, Germany
| | - Rolf Wachter
- From the Department of Cardiology and Pneumology, Georg-August University (S.J.B., T.L., E.F.G., K.H., M.B., R.W., U.R., G.H., T.S., A.S.), University Medical Center Göttingen, Germany
- Clinic and Policlinic for Cardiology, University Hospital Leipzig, Germany (R.W.)
| | - Michael Steinmetz
- Departments of Pediatric Cardiology and Intensive Care Medicine (M.S.), University Medical Center Göttingen, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Göttingen, Germany (S.J.B., T.L., E.F.G., K.H., M.S., U.R., J.L., T.F., M.U., G.H., T.S., A.S.)
| | - Shelby Kutty
- Taussig Heart Center, Johns Hopkins Hospital, Baltimore, MD (S.K.)
| | - Uwe Raaz
- From the Department of Cardiology and Pneumology, Georg-August University (S.J.B., T.L., E.F.G., K.H., M.B., R.W., U.R., G.H., T.S., A.S.), University Medical Center Göttingen, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Göttingen, Germany (S.J.B., T.L., E.F.G., K.H., M.S., U.R., J.L., T.F., M.U., G.H., T.S., A.S.)
| | - Joachim Lotz
- Diagnostic and Interventional Radiology (J.L., M.U.), University Medical Center Göttingen, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Göttingen, Germany (S.J.B., T.L., E.F.G., K.H., M.S., U.R., J.L., T.F., M.U., G.H., T.S., A.S.)
| | - Tim Friede
- Medical Statistics (T.F.), University Medical Center Göttingen, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Göttingen, Germany (S.J.B., T.L., E.F.G., K.H., M.S., U.R., J.L., T.F., M.U., G.H., T.S., A.S.)
| | - Martin Uecker
- Diagnostic and Interventional Radiology (J.L., M.U.), University Medical Center Göttingen, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Göttingen, Germany (S.J.B., T.L., E.F.G., K.H., M.S., U.R., J.L., T.F., M.U., G.H., T.S., A.S.)
- Cluster of Excellence "Multiscale Bioimaging: from Molecular Machines to Networks of Excitable Cells" (MBExC), University of Göttingen, Germany (M.U., G.H.)
| | - Gerd Hasenfuß
- From the Department of Cardiology and Pneumology, Georg-August University (S.J.B., T.L., E.F.G., K.H., M.B., R.W., U.R., G.H., T.S., A.S.), University Medical Center Göttingen, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Göttingen, Germany (S.J.B., T.L., E.F.G., K.H., M.S., U.R., J.L., T.F., M.U., G.H., T.S., A.S.)
- Cluster of Excellence "Multiscale Bioimaging: from Molecular Machines to Networks of Excitable Cells" (MBExC), University of Göttingen, Germany (M.U., G.H.)
| | - Tim Seidler
- From the Department of Cardiology and Pneumology, Georg-August University (S.J.B., T.L., E.F.G., K.H., M.B., R.W., U.R., G.H., T.S., A.S.), University Medical Center Göttingen, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Göttingen, Germany (S.J.B., T.L., E.F.G., K.H., M.S., U.R., J.L., T.F., M.U., G.H., T.S., A.S.)
| | - Andreas Schuster
- From the Department of Cardiology and Pneumology, Georg-August University (S.J.B., T.L., E.F.G., K.H., M.B., R.W., U.R., G.H., T.S., A.S.), University Medical Center Göttingen, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Göttingen, Germany (S.J.B., T.L., E.F.G., K.H., M.S., U.R., J.L., T.F., M.U., G.H., T.S., A.S.)
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Benfari G, Essayagh B, Nistri S, Maalouf J, Rossi A, Thapa P, Michelena HI, Enriquez-Sarano M. Left Atrial Volumetric/Mechanical Coupling Index: A Novel Predictor of Outcome in Heart Failure With Reduced Ejection Fraction. Circ Cardiovasc Imaging 2021; 14:e011608. [PMID: 33463368 DOI: 10.1161/circimaging.120.011608] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Left atrial assessment is complex, particularly in heart failure with reduced ejection fraction due to interactions with functional mitral regurgitation (FMR). Pilot data suggest that left atrial volumetric/mechanical coupling index (LACI) may be useful, but large outcome data are lacking. METHODS We enrolled a comprehensively characterized cohort of patients in sinus rhythm with heart failure with reduced ejection fraction diagnosis at Mayo Clinic from 2007 to 2011. Routinely measured left atrial volume index and tissue-doppler-imaging a' allowed LACI calculation as (left atrial volume index)/(tissue-doppler-imaging a'). Survival was the outcome measured. RESULTS The cohort's 4196 patients (69 [58-77] years, ejection fraction 40 [31-45]%) had mild FMR in 1505 and moderate-severe FMR in 1068. LACI was overall 5.06 (3.50-8.10) and increased with each FMR grade (3.86 [2.94-5.29] without FMR, 5.38 [3.80-8.02] with mild, 5.45 [1.49-8.07] with moderate/severe FMR; P<0.0001). At diagnosis, higher LACI was independently determined by more severe FMR and by higher left ventricular mass index, lower ejection fraction, higher E/e', and lower glomerular filtration rate (all P<0.0001). During follow-up 1588 (38%) patients died. In spline modeling, excess mortality appeared around LACI=6 and steeply increased thereafter (5-year survival 72±1% with LACI<6 and 49±2% with LACI ≥6, P<0.0001). Multivariable comprehensive adjustment showed LACI strong association with excess mortality (adjusted hazard ratio, 1.41 [1.23-1.61], P<0.0001 for LACI ≥6). Independent link to mortality persistent across FMR grades (adjusted hazard ratio, 1.45 [1.13-1.86], P=0.004 without FMR, 1.42 [1.16-1.77], P=0.0008 with mild FMR, and 1.38 [1.01-1.66], P=0.04 with moderate/severe FMR) without interaction (P=0.3). LACI independent impact on outcome was incremental to that of left atrial volume index, tissue-doppler-imaging a', or any other characteristic including the Meta-Analysis Global Group in Chronic-score (least significant P=0.02). CONCLUSIONS In this large cohort, left atrial volumetric/mechanical coupling measured by LACI in routine practice integrates the influence of several morphological/hemodynamic determinants but displays progressive deterioration with increasing FMR severity in heart failure with reduced ejection fraction. About outcome, higher LACI is strongly, independently, and incrementally associated with excess mortality, irrespective of FMR grade and in all subsets. Hence, LACI is a novel and critical measure in heart failure with reduced ejection fraction, quantifiable in routine practice, which should be integrated in prognostication and decision-making.
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Affiliation(s)
- Giovanni Benfari
- Department of Cardiovascular Diseases, Mayo Clinic, Mayo Clinic, Rochester, MN (G.B., B.E., J.M., P.T., H.I.M., M.E.-S.).,University of Verona, Section of Cardiology, Department of Medicine, Italy (G.B., A.R.)
| | - Benjamin Essayagh
- Department of Cardiovascular Diseases, Mayo Clinic, Mayo Clinic, Rochester, MN (G.B., B.E., J.M., P.T., H.I.M., M.E.-S.)
| | - Stefano Nistri
- CMSR Veneto Medica, Cardiology Service, Altavilla Vicentina, Vicenza, Italy (S.N.)
| | - Joseph Maalouf
- Department of Cardiovascular Diseases, Mayo Clinic, Mayo Clinic, Rochester, MN (G.B., B.E., J.M., P.T., H.I.M., M.E.-S.)
| | - Andrea Rossi
- University of Verona, Section of Cardiology, Department of Medicine, Italy (G.B., A.R.)
| | - Prabin Thapa
- Department of Cardiovascular Diseases, Mayo Clinic, Mayo Clinic, Rochester, MN (G.B., B.E., J.M., P.T., H.I.M., M.E.-S.)
| | - Hector I Michelena
- Department of Cardiovascular Diseases, Mayo Clinic, Mayo Clinic, Rochester, MN (G.B., B.E., J.M., P.T., H.I.M., M.E.-S.)
| | - Maurice Enriquez-Sarano
- Department of Cardiovascular Diseases, Mayo Clinic, Mayo Clinic, Rochester, MN (G.B., B.E., J.M., P.T., H.I.M., M.E.-S.)
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Habibi M, Lima JAC, Gucuk Ipek E, Spragg D, Ashikaga H, Marine JE, Berger RD, Calkins H, Nazarian S. Short- and long-term associations of atrial fibrillation catheter ablation with left atrial structure and function: A cardiac magnetic resonance study. J Cardiovasc Electrophysiol 2020; 32:316-324. [PMID: 33350536 DOI: 10.1111/jce.14842] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 11/24/2020] [Accepted: 12/04/2020] [Indexed: 11/30/2022]
Abstract
BACKGROUND The effects of atrial fibrillation (AF) catheter ablation on the left atrium (LA) are poorly understood. OBJECTIVES To examine short- and long-term associations of AF catheter ablation with LA function using cardiac magnetic resonance (CMR). METHODS Fifty-one AF patients (mean age 56 ± 8 years) underwent CMR at baseline, 1 day (n = 17) and 11 ± 2 months after ablation (n = 38). LA phasic volumes, emptying fractions (LAEF), and longitudinal strain were measured using feature-tracking CMR. LA fibrosis was quantified using late gadolinium enhancement (LGE). RESULTS There were no acute changes in volume; however, active, total LAEF, and peak LA strain decreased significantly compared to the baseline. During long-term follow-up, there was a decrease in maximum but not minimum LA volume (from 99 ± 5.2 ml to 89 ± 4.7 ml; p = .009) and a decrease in total LAEF (from 43 ± 1.8% to 39 ± 2.0%; p = .001). In patients with AF recurrence, LA volumes were unchanged. However, total LAEF decreased from 38 ± 3% to 33 ± 3%; p = .015. Patients without AF recurrence had no changes in LA functional parameters during follow-up. The amount of LA LGE at long-term follow-up was higher compared to the baseline, however, was significantly less compared to immediately post-procedure (37 ± 1.9% vs. 47 ± 2.8%; p = .015). A higher increase in LA LGE extent compared to the baseline was associated with a greater decrease in total LAEF (r = -.59; p < .001). CONCLUSIONS LA function is impaired acutely following AF catheter ablation. However, long-term changes of LA function are associated positively with the successful restoration of sinus rhythm and inversely with increased LA LGE.
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Affiliation(s)
- Mohammadali Habibi
- Division of Cardiology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.,Valley Health System and the Snyder Center for Comprehensive Atrial Fibrillation, Ridgewood, New Jersey, USA
| | - Joao A C Lima
- Division of Cardiology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Esra Gucuk Ipek
- Division of Cardiology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - David Spragg
- Division of Cardiology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Hiroshi Ashikaga
- Division of Cardiology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Joseph E Marine
- Division of Cardiology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Ronald D Berger
- Division of Cardiology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Hugh Calkins
- Division of Cardiology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Saman Nazarian
- Division of Cardiology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.,Division of Cardiology, Section for Cardiac Electrophysiology, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
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Grosse GM, Sieweke JT, Biber S, Ziegler NL, Gabriel MM, Schuppner R, Worthmann H, Bavendiek U, Weissenborn K. Nonstenotic Carotid Plaque in Embolic Stroke of Undetermined Source: Interplay of Arterial and Atrial Disease. Stroke 2020; 51:3737-3741. [PMID: 33040704 DOI: 10.1161/strokeaha.120.030537] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND AND PURPOSE Approximately one-sixth of all ischemic strokes are attributable to embolic stroke of undetermined source (ESUS). Recent analyses suggest that atrial cardiopathy and nonstenotic carotid plaque (nsCP) may represent 2 distinct underlying causes in patients with ESUS, although both diseases share common risk factors and are pathophysiologically intertwined. In this study, we, therefore, aimed to search for associations between nsCP and markers of atrial remodeling and function in patients with embolic stroke. METHODS Sixty-eight patients with ESUS or atrial fibrillation (AF)-related stroke proven by imaging who underwent comprehensive echocardiographic studies, including measurements of left atrial function and remodeling, were considered. Patients with ESUS underwent a follow-up of at least 1 year after index stroke. For 20 patients with ESUS, NT-proBNP (N-terminal pro-B-type natriuretic peptide) values were available. Presence of nsCP was evaluated considering Duplex sonography and computed tomography angiography and was further categorized in possibly or probably symptomatic nsCP. RESULTS ESUS patients with nsCP tended to have higher values of septal and lateral total atrial conduction times (P=0.071 and P=0.072, respectively), left atrial volume index (P=0.077), and revealed significantly higher strain rates during early diastole (P=0.013) as well as higher NT-proBNP values (P=0.010) than ESUS patients without nsCP. Moreover, septal total atrial conduction time was significantly longer in ESUS patients with possibly symptomatic nsCP compared with those without (P=0.015). Comparison of ESUS with AF patients revealed significantly higher proportions of nsCP (P=0.010), possibly symptomatic nsCP (P=0.037), and probably symptomatic nsCP (P=0.036) in patients with atrial fibrillation-related stroke. In the regression analysis adjusted for vascular risk factors probably symptomatic nsCP remained significantly associated with AF (P=0.048, odds ratio: 4.46 [95% CI, 1.02-19.56]). CONCLUSIONS Presence of nsCP is associated with AF and markers of left atrial disease in patients with embolic stroke. Therefore, a thorough evaluation regarding atrial cardiopathy and AF in patients with ESUS should not be restricted if nsCP are found, even if high-risk plaque characteristics are evident.
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Affiliation(s)
- Gerrit M Grosse
- Department of Neurology (G.M.G., S.B., N.L.Z., M.M.G., R.S., H.W., K.W.), Hannover Medical School, Germany
| | - Jan-Thorben Sieweke
- Department of Cardiology and Angiology (J.-T.S., S.B., U.B.), Hannover Medical School, Germany
| | - Saskia Biber
- Department of Neurology (G.M.G., S.B., N.L.Z., M.M.G., R.S., H.W., K.W.), Hannover Medical School, Germany.,Department of Cardiology and Angiology (J.-T.S., S.B., U.B.), Hannover Medical School, Germany
| | - Nora L Ziegler
- Department of Neurology (G.M.G., S.B., N.L.Z., M.M.G., R.S., H.W., K.W.), Hannover Medical School, Germany
| | - Maria M Gabriel
- Department of Neurology (G.M.G., S.B., N.L.Z., M.M.G., R.S., H.W., K.W.), Hannover Medical School, Germany
| | - Ramona Schuppner
- Department of Neurology (G.M.G., S.B., N.L.Z., M.M.G., R.S., H.W., K.W.), Hannover Medical School, Germany
| | - Hans Worthmann
- Department of Neurology (G.M.G., S.B., N.L.Z., M.M.G., R.S., H.W., K.W.), Hannover Medical School, Germany
| | - Udo Bavendiek
- Department of Cardiology and Angiology (J.-T.S., S.B., U.B.), Hannover Medical School, Germany
| | - Karin Weissenborn
- Department of Neurology (G.M.G., S.B., N.L.Z., M.M.G., R.S., H.W., K.W.), Hannover Medical School, Germany
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Argento LV, Travetto CM, de Las M Colicigno M, Gentile S, Salvati A, Lax J, Cianciulli T. Tissue Doppler imaging of the atrial lateral wall: Correlation with atrial strain rate and parameters of diastolic function. Echocardiography 2019; 36:1282-1289. [PMID: 31162740 DOI: 10.1111/echo.14394] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 05/08/2019] [Accepted: 05/09/2019] [Indexed: 11/28/2022] Open
Abstract
OBJECTIVE To evaluate the velocity profile of the lateral wall of the left atrium (LA) using pulsed-wave color tissue Doppler imaging (TDI) on line and its correlation with two-dimensional strain rate imaging (SRI) by speckle tracking, of equal segments and phases, and other parameters of diastolic function in a population of individuals without known cardiovascular disease. MATERIALS AND METHODS A total of 91 adults aged 18-74 years, without cardiovascular history, hypertension, diabetes, dyslipidemia or obesity, were evaluated. A Doppler echocardiogram was performed. The lateral wall of the LA was divided subjectively into three portions, the atrial roof was excluded; the peak velocities of the basal and midportions, and their average, were measured with pulsed-wave TDI on line and SRI. Using both techniques, a first positive wave (S'la and SRS-reservoir phase) and two negative waves (E'la and SRE-conduit phase-and A'la and SRA-atrial systole-respectively) were obtained. E'la/A'la ratio and SRE/SRA ratio were analyzed. RESULTS The median age was 42 years, and 54.9% of the subjects were female. S'la presented moderate correlation with S' lateral mitral annulus. Both E'la and the E'la/A'la relationships showed moderate to good correlation with various diastolic dysfunction parameters evaluated and SRI. A'la did not present a statistically significant correlation with any of the variables evaluated. CONCLUSION Evaluation of the lateral wall of the LA by pulsed-wave color TDI on line is feasible in the vast majority of patients. In the conduit phase, E'la and the E'la/A'la relationship showed correlation with the parameters that evaluate diastolic function and SRI.
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Affiliation(s)
- Laura V Argento
- Hospital General de Agudos Dr. Cosme Argerich, Capital Federal, Argentina.,Sanatorio Clínica Modelo de Morón, Buenos Aires, Argentina
| | | | | | - Silvia Gentile
- Sanatorio Clínica Modelo de Morón, Buenos Aires, Argentina
| | - Ana Salvati
- Sanatorio Clínica Modelo de Morón, Buenos Aires, Argentina
| | - Jorge Lax
- Hospital General de Agudos Dr. Cosme Argerich, Capital Federal, Argentina
| | - Tomás Cianciulli
- Hospital General de Agudos Dr. Cosme Argerich, Capital Federal, Argentina.,Sanatorio Clínica Modelo de Morón, Buenos Aires, Argentina
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Foppa M, Santos ABS. Let's Look Right during Diastolic Dysfunction Evaluation? Arq Bras Cardiol 2019; 112:258-259. [PMID: 30916188 PMCID: PMC6424042 DOI: 10.5935/abc.20190053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Murilo Foppa
- Hospital de Clinicas de Porto Alegre, Porto Alegre, RS - Brazil
- Universisade Federal do Rio Grande do Sul, Porto Alegre, RS -
Brazil
| | - Angela Barreto Santiago Santos
- Hospital de Clinicas de Porto Alegre, Porto Alegre, RS - Brazil
- Universisade Federal do Rio Grande do Sul, Porto Alegre, RS -
Brazil
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Chen X, Li H, Feng Z, Tang S, Song L. Relationship between geometric changes in mitral annular/leaflets and mitral regurgitation in patients with atrial fibrillation. Medicine (Baltimore) 2019; 98:e14090. [PMID: 30681567 PMCID: PMC6358411 DOI: 10.1097/md.0000000000014090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
The objective of the study was to determine the geometric changes in mitral annular and/or leaflets spatial conformation in patients with atrial fibrillation (AF) complicated with severe atrial mitral regurgitation (AMR) by using real-time 3-dimensional transesophageal echocardiography, aiming to explore whether this condition could be improved through self-modulation of mitral annulus and/or leaflets after the restoration of sinus rhythm.Fifty-five patients who were diagnosed with AMR and subject to 1-year follow-up were recruited in this clinical trial. All patients successfully received AF ablation. The intercommissural and anteroposterior diameter, annular height, mitral valve area (MVA), tenting height and volume, annular spherical index, fractional area change of MVA (MVA-FAC), and coaptation index (CP-I) were defined and measured by mitral-valve quantification software. Left ventricular size and function, maximum LA volume (LAV), and LA dimensions were equally recorded.During 1-year follow-up, AMR was significantly decreased in patients with sinus rhythm (P < 0.001). CP-I, MVA-FAC, and LAV index were independently associated with the reduction of AMR.AMR can be improved through the recovery of LAV after ablation, which probably affects the configuration of the annular space and the coaptation of the leaflets.
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30
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van Grootel RWJ, Strachinaru M, Menting ME, McGhie J, Roos-Hesselink JW, van den Bosch AE. In-depth echocardiographic analysis of left atrial function in healthy adults using speckle tracking echocardiography and volumetric analysis. Echocardiography 2018; 35:1956-1965. [PMID: 30376599 PMCID: PMC6587812 DOI: 10.1111/echo.14174] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Revised: 09/25/2018] [Accepted: 09/27/2018] [Indexed: 12/21/2022] Open
Abstract
Purpose Left atrial (LA) dilatation is predictive for complications in a multitude of cardiac diseases; therefore, adequate assessment is essential. Technological advances have made it possible to quantify LA function with Speckle Tracking Echocardiography (STE); however, there are currently no recommendations for normal values with regard to LA function. We aimed to assess LA myocardial and volumetric function in a healthy cohort and investigate correlations with baseline characteristics. Methods This prospective cohort study included 147 (aged 20–72) healthy individuals and assessed LA volumetric function using maximum, minimum and pre‐a‐wave volumes and myocardial function using reservoir function using peak strain in LA relaxation (LA‐strain), conduit function using peak strain rate in early LA contraction (LA‐SRe) and pump function using peak strain rate in late LA contraction (LA‐SRa). Results Mean LA‐strain was 39.7 ± 6.2%, LA‐SRe −2.78 ± 0.62 s−1 and LA‐SRa −2.56 ± 0.62 s−1. Subjects were divided into 5 age decades (each 50% female). LA‐strain and LA‐SRe were lower in the oldest groups, whereas LA‐SRa was higher. LA‐SRa was higher in males(−2.69 ± 0.68 s−1 vs −2.42 ± 0.52 s−1). Age‐specific values are provided. Age proved to be an independent predictor for LA‐SRa after correction for blood pressure and heart rate. LA expansion index and passive emptying fraction decreased with age, while active emptying fraction increased with age. LA maximum volume did not increase with age. Conclusion This study provides normal values for the three phasic functions of the LA, assessed with STE and volumetric function. Our results suggest the need for age‐specific reference ranges, and normal values for this cohort have been calculated.
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Affiliation(s)
| | | | | | - Jackie McGhie
- Department of Cardiology, Erasmus MC, Rotterdam, The Netherlands
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31
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Khine HW, Steding-Ehrenborg K, Hastings JL, Kowal J, Daniels JD, Page RL, Goldberger JJ, Ng J, Adams-Huet B, Bungo MW, Levine BD. Effects of Prolonged Spaceflight on Atrial Size, Atrial Electrophysiology, and Risk of Atrial Fibrillation. Circ Arrhythm Electrophysiol 2018; 11:e005959. [PMID: 29752376 DOI: 10.1161/circep.117.005959] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2017] [Accepted: 03/05/2018] [Indexed: 11/16/2022]
Abstract
BACKGROUND The prevalence of atrial fibrillation (AF) in active astronauts is ≈5%, similar to the general population but at a younger age. Risk factors for AF include left atrial enlargement, increased number of premature atrial complexes, and certain parameters on signal-averaged electrocardiography, such as P-wave duration, root mean square voltage for the terminal 20 ms of the signal-averaged P wave, and P-wave amplitude. We aimed to evaluate changes in atrial structure, supraventricular beats, and atrial electrophysiology to determine whether spaceflight could increase the risk of AF. METHODS Thirteen astronauts underwent cardiac magnetic resonance imaging to assess atrial structure and function before and after 6 months in space and high-resolution Holter monitoring for multiple 48-hour time periods before flight, during flight, and on landing day. RESULTS Left atrial volume transiently increased after 6 months in space (12±18 mL; P=0.03) without changing atrial function. Right atrial size remained unchanged. No changes in supraventricular beats were noted. One astronaut had a large increase in supraventricular ectopic beats but none developed AF. Filtered P-wave duration did not change over time, but root mean square voltage for the terminal 20 ms decreased on all fight days except landing day. No changes in P-wave amplitude were seen in leads II or V1 except landing day for lead V1. CONCLUSIONS Six months of spaceflight may be sufficient to cause transient changes in left atrial structure and atrial electrophysiology that increase the risk of AF. However, there was no definite evidence of increased supraventricular arrhythmias and no identified episodes of AF.
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Affiliation(s)
- Htet W Khine
- Division of Cardiovascular Medicine, Department of Medicine, University of California San Diego Health (H.W.K.)
| | - Katarina Steding-Ehrenborg
- Division of Physiotherapy, Department of Health Sciences (K.S.-E.).,and Cardiac MR Group, Department of Clinical Sciences, Skåne University Hospital (K.S.-E.)
| | - Jeffrey L Hastings
- Lund University, Sweden. Division of Cardiology, Department of Medicine, University of Texas Southwestern Medical Center, Dallas (J.L.H., J.D.D., B.A.-H., B.D.L.).,Department of Cardiology, VA North Texas Health Care System, Dallas (J.L.H.)
| | - Jamie Kowal
- Department of Internal Medicine, Wake Forest Baptist Medical Center, Winston-Salem, NC (J.K.)
| | - James D Daniels
- Lund University, Sweden. Division of Cardiology, Department of Medicine, University of Texas Southwestern Medical Center, Dallas (J.L.H., J.D.D., B.A.-H., B.D.L.)
| | - Richard L Page
- Division of Cardiovascular Medicine, Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison (R.L.P.)
| | - Jeffery J Goldberger
- Cardiovascular Division, Department of Internal Medicine, University of Miami, FL (J.J.G.)
| | - Jason Ng
- University of Illinois College of Medicine, Chicago (J.N.)
| | - Beverley Adams-Huet
- Lund University, Sweden. Division of Cardiology, Department of Medicine, University of Texas Southwestern Medical Center, Dallas (J.L.H., J.D.D., B.A.-H., B.D.L.)
| | - Michael W Bungo
- Division of Cardiovascular Medicine, Department of Internal Medicine, The University of Texas Health Science Center, Houston (M.W.B.)
| | - Benjamin D Levine
- Lund University, Sweden. Division of Cardiology, Department of Medicine, University of Texas Southwestern Medical Center, Dallas (J.L.H., J.D.D., B.A.-H., B.D.L.). .,Institute for Exercise and Environmental Medicine, Texas Health Presbyterian Hospital Dallas, TX (B.D.L.)
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Christophersen IE, Magnani JW, Yin X, Barnard J, Weng LC, Arking DE, Niemeijer MN, Lubitz SA, Avery CL, Duan Q, Felix SB, Bis JC, Kerr KF, Isaacs A, Müller-Nurasyid M, Müller C, North KE, Reiner AP, Tinker LF, Kors JA, Teumer A, Petersmann A, Sinner MF, Buzkova P, Smith JD, Van Wagoner DR, Völker U, Waldenberger M, Peters A, Meitinger T, Limacher MC, Wilhelmsen KC, Psaty BM, Hofman A, Uitterlinden A, Krijthe BP, Zhang ZM, Schnabel RB, Kääb S, van Duijn C, Rotter JI, Sotoodehnia N, Dörr M, Li Y, Chung MK, Soliman EZ, Alonso A, Whitsel EA, Stricker BH, Benjamin EJ, Heckbert SR, Ellinor PT. Fifteen Genetic Loci Associated With the Electrocardiographic P Wave. ACTA ACUST UNITED AC 2018; 10:CIRCGENETICS.116.001667. [PMID: 28794112 DOI: 10.1161/circgenetics.116.001667] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Accepted: 05/15/2017] [Indexed: 12/13/2022]
Abstract
BACKGROUND The P wave on an ECG is a measure of atrial electric function, and its characteristics may serve as predictors for atrial arrhythmias. Increased mean P-wave duration and P-wave terminal force traditionally have been used as markers for left atrial enlargement, and both have been associated with increased risk of atrial fibrillation. Here, we explore the genetic basis of P-wave morphology through meta-analysis of genome-wide association study results for P-wave duration and P-wave terminal force from 12 cohort studies. METHODS AND RESULTS We included 44 456 individuals, of which 6778 (16%) were of African ancestry. Genotyping, imputation, and genome-wide association study were performed at each study site. Summary-level results were meta-analyzed centrally using inverse-variance weighting. In meta-analyses of P-wave duration, we identified 6 significant (P<5×10-8) novel loci and replicated a prior association with SCN10A. We identified 3 loci at SCN5A, TBX5, and CAV1/CAV2 that were jointly associated with the PR interval, PR segment, and P-wave duration. We identified 6 novel loci in meta-analysis of P-wave terminal force. Four of the identified genetic loci were significantly associated with gene expression in 329 left atrial samples. Finally, we observed that some of the loci associated with the P wave were linked to overall atrial conduction, whereas others identified distinct phases of atrial conduction. CONCLUSIONS We have identified 6 novel genetic loci associated with P-wave duration and 6 novel loci associated with P-wave terminal force. Future studies of these loci may aid in identifying new targets for drugs that may modify atrial conduction or treat atrial arrhythmias.
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Kass-Hout O, Kass-Hout T, Parikh A, Hoskins M, Clements SD, Rangaraju S, Noorian AR, Ayala L, Blanke D, Bamford L, Anderson A, Belagaje S, Yepes M, Frankel M, Nahab F. Atrial Fibrillation Predictors on Mobile Cardiac Telemetry in Cryptogenic Ischemic Stroke. Neurohospitalist 2017; 8:7-11. [PMID: 29276556 DOI: 10.1177/1941874417711761] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Background and Purpose The objective of our study was to evaluate magnetic resonance imaging (MRI) and echocardiographic characteristics that would identify patients with cryptogenic ischemic stroke (IS) and transient ischemic attack (TIA) who subsequently developed paroxysmal atrial fibrillation (PAF) on mobile cardiac outpatient telemetry (MCOT). Methods All patients with cryptogenic IS or TIA seen at the Emory University Hospital and Emory University Hospital Midtown from January 1, 2009, to June 30, 2013, who underwent MCOT were included in this analysis. Location (cortical, high subcortical, or neither) of current and prior strokes on MRI and left atrial (LA) functional and anatomical echocardiographic parameters were evaluated to determine their association with subsequent detection of PAF. Results Of 132 patients, 17 (13%) had evidence of newly diagnosed PAF on MCOT (mean duration of monitoring = 25 days). The presence (vs absence) of ≥1 cortical infarct on baseline MRI was a significant predictor of identifying PAF (odds ratio: 5.2, 95% confidence interval: 1.3-19; P = .01). On baseline echocardiography, patients who had PAF (vs non-PAF) had significantly higher mean LA diameters (4.2 vs 3.7 cm, P = .03) and lower tissue Doppler velocity (a'; 5.5 vs 13.5 cm/s, P = .03). In receiver operating characteristic analysis, the ratio of LA volume index to the septal Doppler velocity (LAVI/a') of >4.6 was associated with a higher likelihood of PAF. Combining MRI with echocardiographic variables did not improve the predictive ability beyond echocardiography alone. Conclusion Although the presence of cortical-based infarcts on MRI in patients with cryptogenic IS or TIA increases the likelihood of detecting PAF on MCOT, LA functional and anatomic parameters alone best predicted which patients subsequently had PAF.
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Affiliation(s)
- Omar Kass-Hout
- Department of Neurology, Emory University School of Medicine, Atlanta, GA, USA
| | - Tareq Kass-Hout
- Department of Neurology, Emory University School of Medicine, Atlanta, GA, USA
| | - Ankit Parikh
- Department of Neurology, Emory University School of Medicine, Atlanta, GA, USA
| | - Michael Hoskins
- Department of Neurology, Emory University School of Medicine, Atlanta, GA, USA
| | - Stephen D Clements
- Department of Neurology, Emory University School of Medicine, Atlanta, GA, USA
| | - Srikant Rangaraju
- Department of Neurology, Emory University School of Medicine, Atlanta, GA, USA
| | - Ali Reza Noorian
- Department of Neurology, Emory University School of Medicine, Atlanta, GA, USA
| | - Lauren Ayala
- Department of Neurology, Emory University School of Medicine, Atlanta, GA, USA
| | - Debra Blanke
- Department of Neurology, Emory University School of Medicine, Atlanta, GA, USA
| | - Laura Bamford
- Department of Neurology, Emory University School of Medicine, Atlanta, GA, USA
| | - Aaron Anderson
- Department of Neurology, Emory University School of Medicine, Atlanta, GA, USA
| | - Samir Belagaje
- Department of Neurology, Emory University School of Medicine, Atlanta, GA, USA
| | - Manuel Yepes
- Department of Neurology, Emory University School of Medicine, Atlanta, GA, USA
| | - Michael Frankel
- Department of Neurology, Emory University School of Medicine, Atlanta, GA, USA
| | - Fadi Nahab
- Department of Neurology, Emory University School of Medicine, Atlanta, GA, USA
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von Roeder M, Rommel KP, Kowallick JT, Blazek S, Besler C, Fengler K, Lotz J, Hasenfuß G, Lücke C, Gutberlet M, Schuler G, Schuster A, Lurz P. Influence of Left Atrial Function on Exercise Capacity and Left Ventricular Function in Patients With Heart Failure and Preserved Ejection Fraction. Circ Cardiovasc Imaging 2017; 10:CIRCIMAGING.116.005467. [PMID: 28360259 DOI: 10.1161/circimaging.116.005467] [Citation(s) in RCA: 99] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2016] [Accepted: 02/15/2017] [Indexed: 12/18/2022]
Abstract
BACKGROUND Although left atrial (LA) dysfunction is common in heart failure with preserved ejection fraction (HFpEF), its functional implications beyond the reflection of left ventricular (LV) pathology are not well understood. The aim of this study was to further characterize LA function in HFpEF patients. METHODS AND RESULTS We performed cardiac magnetic resonance myocardial feature tracking in 22 patients with HFpEF and 12 patients without HFpEF. LA reservoir strain, LA conduit strain, and LA booster pump strain were quantified. Peak oxygen uptake (VO2max) was determined. Invasive pressure-volume loops were obtained to evaluate LV diastolic properties. LV early filling was determined from LV volume-time curves as derived from cardiac magnetic resonance. LA reservoir and conduit strain were significantly lower in HFpEF (LA reservoir strain, 22±7% versus 29±6%, P=0.04; LA conduit strain, -9±5% versus -15±4%, P<0.01). Patients with HFpEF showed lower oxygen uptake (17±6 versus 29±8 mL/(kg min); P<0.01). Strain measurement for LA conduit function was strongly associated with VO2max (r=0.80; P<0.01). On multivariable regression analysis, LA conduit strain emerged as strongest predictor for VO2max even after inclusion of LV stiffness and relaxation time (β=0.80; P<0.01). LA conduit strain correlated with the volume of early ventricular filling (r=0.67; P<0.01), but not LV stiffness constant β (-0.34; P=0.051) or relaxation constant τ (r=-0.33; P=0.06). CONCLUSIONS Cardiac magnetic resonance myocardial feature tracking-derived conduit strain is significantly impaired in HFpEF and associated with exercise intolerance. Impaired conduit function is associated with impaired early ventricular filling, as potential mechanism leading to impaired oxygen uptake. Our results propose that impaired LA conduit function represents a distinct feature of HFpEF, independent of LV stiffness and relaxation. CLINICAL TRIAL REGISTRATION URL: http://www.clinicaltrials.gov. Unique identifier: NCT02459626.
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Affiliation(s)
- Maximilian von Roeder
- From the Department of Internal Medicine/Cardiology (M.v.R., K.-P.R., S.B., C.B., K.F., G.S., P.L.) and Department of Radiology (C.L., M.G.), University of Leipzig, Heart Center, Germany; Department of Cardiology and Pneumology (G.H., A.S.) and Institute for Diagnostic and Interventional Radiology (J.T.K., J.L.), Georg-August University, Göttingen, Germany; and DZHK (German Centre for Cardiovascular Research), Berlin, Germany (J.T.K., J.L., G.H., A.S.)
| | - Karl-Philipp Rommel
- From the Department of Internal Medicine/Cardiology (M.v.R., K.-P.R., S.B., C.B., K.F., G.S., P.L.) and Department of Radiology (C.L., M.G.), University of Leipzig, Heart Center, Germany; Department of Cardiology and Pneumology (G.H., A.S.) and Institute for Diagnostic and Interventional Radiology (J.T.K., J.L.), Georg-August University, Göttingen, Germany; and DZHK (German Centre for Cardiovascular Research), Berlin, Germany (J.T.K., J.L., G.H., A.S.)
| | - Johannes Tammo Kowallick
- From the Department of Internal Medicine/Cardiology (M.v.R., K.-P.R., S.B., C.B., K.F., G.S., P.L.) and Department of Radiology (C.L., M.G.), University of Leipzig, Heart Center, Germany; Department of Cardiology and Pneumology (G.H., A.S.) and Institute for Diagnostic and Interventional Radiology (J.T.K., J.L.), Georg-August University, Göttingen, Germany; and DZHK (German Centre for Cardiovascular Research), Berlin, Germany (J.T.K., J.L., G.H., A.S.)
| | - Stephan Blazek
- From the Department of Internal Medicine/Cardiology (M.v.R., K.-P.R., S.B., C.B., K.F., G.S., P.L.) and Department of Radiology (C.L., M.G.), University of Leipzig, Heart Center, Germany; Department of Cardiology and Pneumology (G.H., A.S.) and Institute for Diagnostic and Interventional Radiology (J.T.K., J.L.), Georg-August University, Göttingen, Germany; and DZHK (German Centre for Cardiovascular Research), Berlin, Germany (J.T.K., J.L., G.H., A.S.)
| | - Christian Besler
- From the Department of Internal Medicine/Cardiology (M.v.R., K.-P.R., S.B., C.B., K.F., G.S., P.L.) and Department of Radiology (C.L., M.G.), University of Leipzig, Heart Center, Germany; Department of Cardiology and Pneumology (G.H., A.S.) and Institute for Diagnostic and Interventional Radiology (J.T.K., J.L.), Georg-August University, Göttingen, Germany; and DZHK (German Centre for Cardiovascular Research), Berlin, Germany (J.T.K., J.L., G.H., A.S.)
| | - Karl Fengler
- From the Department of Internal Medicine/Cardiology (M.v.R., K.-P.R., S.B., C.B., K.F., G.S., P.L.) and Department of Radiology (C.L., M.G.), University of Leipzig, Heart Center, Germany; Department of Cardiology and Pneumology (G.H., A.S.) and Institute for Diagnostic and Interventional Radiology (J.T.K., J.L.), Georg-August University, Göttingen, Germany; and DZHK (German Centre for Cardiovascular Research), Berlin, Germany (J.T.K., J.L., G.H., A.S.)
| | - Joachim Lotz
- From the Department of Internal Medicine/Cardiology (M.v.R., K.-P.R., S.B., C.B., K.F., G.S., P.L.) and Department of Radiology (C.L., M.G.), University of Leipzig, Heart Center, Germany; Department of Cardiology and Pneumology (G.H., A.S.) and Institute for Diagnostic and Interventional Radiology (J.T.K., J.L.), Georg-August University, Göttingen, Germany; and DZHK (German Centre for Cardiovascular Research), Berlin, Germany (J.T.K., J.L., G.H., A.S.)
| | - Gerd Hasenfuß
- From the Department of Internal Medicine/Cardiology (M.v.R., K.-P.R., S.B., C.B., K.F., G.S., P.L.) and Department of Radiology (C.L., M.G.), University of Leipzig, Heart Center, Germany; Department of Cardiology and Pneumology (G.H., A.S.) and Institute for Diagnostic and Interventional Radiology (J.T.K., J.L.), Georg-August University, Göttingen, Germany; and DZHK (German Centre for Cardiovascular Research), Berlin, Germany (J.T.K., J.L., G.H., A.S.)
| | - Christian Lücke
- From the Department of Internal Medicine/Cardiology (M.v.R., K.-P.R., S.B., C.B., K.F., G.S., P.L.) and Department of Radiology (C.L., M.G.), University of Leipzig, Heart Center, Germany; Department of Cardiology and Pneumology (G.H., A.S.) and Institute for Diagnostic and Interventional Radiology (J.T.K., J.L.), Georg-August University, Göttingen, Germany; and DZHK (German Centre for Cardiovascular Research), Berlin, Germany (J.T.K., J.L., G.H., A.S.)
| | - Matthias Gutberlet
- From the Department of Internal Medicine/Cardiology (M.v.R., K.-P.R., S.B., C.B., K.F., G.S., P.L.) and Department of Radiology (C.L., M.G.), University of Leipzig, Heart Center, Germany; Department of Cardiology and Pneumology (G.H., A.S.) and Institute for Diagnostic and Interventional Radiology (J.T.K., J.L.), Georg-August University, Göttingen, Germany; and DZHK (German Centre for Cardiovascular Research), Berlin, Germany (J.T.K., J.L., G.H., A.S.)
| | - Gerhard Schuler
- From the Department of Internal Medicine/Cardiology (M.v.R., K.-P.R., S.B., C.B., K.F., G.S., P.L.) and Department of Radiology (C.L., M.G.), University of Leipzig, Heart Center, Germany; Department of Cardiology and Pneumology (G.H., A.S.) and Institute for Diagnostic and Interventional Radiology (J.T.K., J.L.), Georg-August University, Göttingen, Germany; and DZHK (German Centre for Cardiovascular Research), Berlin, Germany (J.T.K., J.L., G.H., A.S.)
| | - Andreas Schuster
- From the Department of Internal Medicine/Cardiology (M.v.R., K.-P.R., S.B., C.B., K.F., G.S., P.L.) and Department of Radiology (C.L., M.G.), University of Leipzig, Heart Center, Germany; Department of Cardiology and Pneumology (G.H., A.S.) and Institute for Diagnostic and Interventional Radiology (J.T.K., J.L.), Georg-August University, Göttingen, Germany; and DZHK (German Centre for Cardiovascular Research), Berlin, Germany (J.T.K., J.L., G.H., A.S.)
| | - Philipp Lurz
- From the Department of Internal Medicine/Cardiology (M.v.R., K.-P.R., S.B., C.B., K.F., G.S., P.L.) and Department of Radiology (C.L., M.G.), University of Leipzig, Heart Center, Germany; Department of Cardiology and Pneumology (G.H., A.S.) and Institute for Diagnostic and Interventional Radiology (J.T.K., J.L.), Georg-August University, Göttingen, Germany; and DZHK (German Centre for Cardiovascular Research), Berlin, Germany (J.T.K., J.L., G.H., A.S.).
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Kobayashi Y, Wheeler M, Finocchiaro G, Ariyama M, Kobayashi Y, Perez MV, Liang D, Kuznetsova T, Schnittger I, Ashley E, Haddad F. Left atrial function and phenotypes in asymmetric hypertrophic cardiomyopathy. Echocardiography 2017; 34:843-850. [PMID: 28370331 DOI: 10.1111/echo.13533] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND Few studies have analyzed changes in left atrial (LA) function associated with different phenotypes of asymmetric hypertrophic cardiomyopathy (HCM). We sought to demonstrate the association of impairments in LA function with disease phenotype in patients with obstructive and nonobstructive HCM. METHODS From Stanford Cardiomyopathy Registry, we randomly selected 50 age-/sex-matched healthy controls, 35 patients with nonobstructive HCM (HCM 1), 35 patients with obstructive HCM (HCM 2), and 35 patients with obstructive HCM requiring septal reduction therapy (HCM 3). Echocardiography was performed to evaluate left ventricular (LV) strain as well as LA function including LA emptying fraction and LA strain. RESULTS The mean age was 51±14 years and 57% were male. LA volume index differed among all four predefined groups (25.6±6.7 mL/m2 in controls, 32.2±13.3 mL/m2 in HCM 1, 42.0±12.9 mL/m2 in HCM 2, 52.4±15.2 mL/m2 for HCM 3, and P<.05 all between groups). All measurement of LA function was impaired in patients with HCM than controls. Total and passive LA function was further impaired in HCM 2 or 3 compared with HCM 1, while active LA function was not different among the three groups. Among LV strains, only septal longitudinal strain differed among all groups (-18.5±1.9% in controls, -14.5±1.9% in HCM 1, -13.3±1.8% in HCM 2, -11.6±2.3% in HCM 3, and P<.05 all between groups). CONCLUSIONS LA function was impaired in patients with HCM even in minimally symptomatic nonobstructive phenotype. Total and passive LA function was further impaired in patients with obstructive HCM.
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Affiliation(s)
- Yukari Kobayashi
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford, CA, USA.,Stanford Cardiovascular Institute, Stanford, CA, USA
| | - Matthew Wheeler
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford, CA, USA.,Stanford Cardiovascular Institute, Stanford, CA, USA
| | - Gherardo Finocchiaro
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford, CA, USA.,Stanford Cardiovascular Institute, Stanford, CA, USA
| | - Miyuki Ariyama
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford, CA, USA.,Stanford Cardiovascular Institute, Stanford, CA, USA
| | - Yuhei Kobayashi
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford, CA, USA.,Stanford Cardiovascular Institute, Stanford, CA, USA
| | - Marco V Perez
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford, CA, USA.,Stanford Cardiovascular Institute, Stanford, CA, USA
| | - David Liang
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford, CA, USA.,Stanford Cardiovascular Institute, Stanford, CA, USA
| | - Tatiana Kuznetsova
- Stanford Cardiovascular Institute, Stanford, CA, USA.,Research Unit Hypertension and Cardiovascular Epidemiology, KU Leuven Department of Cardiovascular Sciences, University of Leuven, Leuven, Belgium
| | - Ingela Schnittger
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford, CA, USA.,Stanford Cardiovascular Institute, Stanford, CA, USA
| | - Euan Ashley
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford, CA, USA.,Stanford Cardiovascular Institute, Stanford, CA, USA
| | - Francois Haddad
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford, CA, USA.,Stanford Cardiovascular Institute, Stanford, CA, USA
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Nührich JM, Geisler AC, Steven D, Hoffmann BA, Schäffer B, Lund G, Stehning C, Radunski UK, Sultan A, Schwarzl M, Adam G, Willems S, Muellerleile K. Active Atrial Function and Atrial Scar Burden After Multiple Catheter Ablations of Persistent Atrial Fibrillation. Pacing Clin Electrophysiol 2016; 40:175-182. [PMID: 27995637 DOI: 10.1111/pace.13004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Revised: 11/30/2016] [Accepted: 12/04/2016] [Indexed: 11/27/2022]
Abstract
BACKGROUND Extensive and repeated substrate modification (SM) is frequently performed as an ablation strategy in persistent atrial fibrillation (persAF). The effect of these extended ablation strategies on atrial function has not been investigated sufficiently so far. The purpose was to assess atrial function by cardiac magnetic resonance (CMR) and its association with left atrial (LA) scar burden by electroanatomical voltage-mapping after multiple persAF ablation procedures. METHODS We included 16 persAF patients who had ≥2 SM procedures and a control group (CG) of 21 persAF patients without prior ablation. CMR was performed in sinus rhythm at least 4 weeks after the last cardioversion. Active left and right (RA) atrial emptying fractions (AEF) as well as peak active left atrial appendage (LAA) emptying velocities were obtained by CMR flow measurements. Furthermore, LA scar burden was quantified on electroanatomical voltage maps by the portion of points with local voltage amplitude <0.2 mV. RESULTS We found median LA-AEF to be lower (13 [9-22] vs 32 [26-36] %, P < 0.001) and median LA scar burden to be higher (40 [20-68] vs nine [3-18] %, P < 0.05) in the SM group compared with the CG. Furthermore, a significant correlation was found between mean LA voltage and LA-AEF (r2 = 0.62, P < 0.001). No significant differences were detected with respect to median RA-AEF (41 [28-48] vs 47 [35-50] %, P = 0.43) and median peak LAA emptying velocities (30 [16-40] vs 17 [13-28] cm/s, P = 0.07). CONCLUSIONS Active LA function is preserved but significantly impaired and associated with ablation-related LA scar burden after multiple extensive persAF ablations.
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Affiliation(s)
- Jana M Nührich
- University Heart Center, Department of Cardiology - Electrophysiology, Hamburg, Germany
| | - Anne C Geisler
- University Heart Center, Department of Cardiology - Electrophysiology, Hamburg, Germany
| | - Daniel Steven
- University Hospital Cologne, Heart Center, Department of Electrophysiology, Cologne, Germany
| | - Boris A Hoffmann
- University Heart Center, Department of Cardiology - Electrophysiology, Hamburg, Germany
| | - Benjamin Schäffer
- University Heart Center, Department of Cardiology - Electrophysiology, Hamburg, Germany
| | - Gunnar Lund
- University Medical Center Hamburg-Eppendorf, Department of Diagnostic and Interventional Radiology, Hamburg, Germany
| | | | - Ulf K Radunski
- University Heart Center, Department of General and Interventional Cardiology, Hamburg, Germany
| | - Arian Sultan
- University Hospital Cologne, Heart Center, Department of Electrophysiology, Cologne, Germany
| | - Michael Schwarzl
- University Heart Center, Department of General and Interventional Cardiology, Hamburg, Germany
| | - Gerhard Adam
- University Medical Center Hamburg-Eppendorf, Department of Diagnostic and Interventional Radiology, Hamburg, Germany
| | - Stephan Willems
- University Heart Center, Department of Cardiology - Electrophysiology, Hamburg, Germany
| | - Kai Muellerleile
- University Heart Center, Department of Cardiology - Electrophysiology, Hamburg, Germany.,University Heart Center, Department of General and Interventional Cardiology, Hamburg, Germany
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Kim JS, Im SI, Shin SY, Kang JH, Na JO, Choi CU, Kim SH, Kim EJ, Rha SW, Park CG, Seo HS, Oh DJ, Hwang C, Kim YH, Yong HS, Lim HE. Changes in Left Atrial Transport Function in Patients Who Maintained Sinus Rhythm After Successful Radiofrequency Catheter Ablation for Atrial Fibrillation: A 1-Year Follow-Up Multislice Computed Tomography Study. J Cardiovasc Electrophysiol 2016; 28:167-176. [PMID: 27859888 DOI: 10.1111/jce.13128] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2016] [Revised: 11/14/2016] [Accepted: 11/15/2016] [Indexed: 11/30/2022]
Abstract
BACKGROUND Functional remodeling of left atrium (LA) after radiofrequency catheter ablation (RFCA) for atrial fibrillation (AF) has not been fully elucidated. This study aimed to determine the impact of RFCA on LA transport function in patients who maintained sinus rhythm (SR) after AF ablation. METHODS AND RESULTS A total of 96 patients (paroxysmal AF [PAF] = 52) who maintained SR during 1 year after AF ablation were enrolled. Multislice computed tomography was performed to determine LA volume (LAV) and LA emptying fraction (LAEF) at pre-RFCA and 1-year post-RFCA. Creatine kinase-MB (CK-MB) and troponin-T levels were analyzed 1-day post-RFCA. At 1-year post-RFCA, mean LAV and LAEF decreased in overall patients. Based on LAEF change (ΔLAEF) cutoff of 5.0%, LAEF reduced in 41 patients (worsened group) and improved or showed no change in 55 patients (preserved group). Compared with preserved group, worsened group had a higher proportion of PAF, higher levels of CK-MB and troponin-T, and additional LA ablation. ΔLAEF was inversely correlated with CK-MB and troponin-T levels. Subgroup analysis showed that LAEF significantly decreased in PAF patients who underwent additional LA ablation. Multivariate analysis revealed that high baseline LAEF and additional LA ablation were independent predictors for worsened LAEF. CONCLUSIONS Although SR was maintained for 1 year after AF ablation, LAEF as well as LAV decreased. The extent of LAEF deterioration was significantly associated with the amount of iatrogenic myocardial damage. Our data indicate that extensive atrial ablation may lead to LA functional deterioration, especially in patients with PAF.
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Affiliation(s)
- Jin-Seok Kim
- Division of Cardiology, Cardiovascular Center, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea
| | - Sung Il Im
- Division of Cardiology, Kosin University Gospel Hospital, College of Medicine, Kosin University, Busan, Korea
| | - Seung Yong Shin
- Division of Cardiology, Heart Research Institute, College of Medicine, Chung-Ang University, Seoul, Korea
| | - Jun Hyuk Kang
- Division of Cardiology, Cardiovascular Center, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea
| | - Jin Oh Na
- Division of Cardiology, Cardiovascular Center, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea
| | - Cheol Ung Choi
- Division of Cardiology, Cardiovascular Center, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea
| | - Seong Hwan Kim
- Division of Cardiology, Cardiovascular Center, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea
| | - Eung Ju Kim
- Division of Cardiology, Cardiovascular Center, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea
| | - Seung-Woon Rha
- Division of Cardiology, Cardiovascular Center, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea
| | - Chang Gyu Park
- Division of Cardiology, Cardiovascular Center, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea
| | - Hong Seog Seo
- Division of Cardiology, Cardiovascular Center, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea
| | - Dong Joo Oh
- Division of Cardiology, Cardiovascular Center, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea
| | - Chun Hwang
- Division of Cardiology, Utah Valley Regional Medical Center, Provo, Utah, USA
| | - Young-Hoon Kim
- Division of Cardiology, Cardiovascular Center, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea
| | - Hwan Seok Yong
- Department of Radiology, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea
| | - Hong Euy Lim
- Division of Cardiology, Cardiovascular Center, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea
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Pashakhanloo F, Herzka DA, Ashikaga H, Mori S, Gai N, Bluemke DA, Trayanova NA, McVeigh ER. Myofiber Architecture of the Human Atria as Revealed by Submillimeter Diffusion Tensor Imaging. Circ Arrhythm Electrophysiol 2016; 9:e004133. [PMID: 27071829 DOI: 10.1161/circep.116.004133] [Citation(s) in RCA: 112] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Accepted: 03/15/2016] [Indexed: 11/16/2022]
Abstract
BACKGROUND Accurate knowledge of the human atrial fibrous structure is paramount in understanding the mechanisms of atrial electric function in health and disease. Thus far, such knowledge has been acquired from destructive sectioning, and there is a paucity of data about atrial fiber architecture variability in the human population. METHODS AND RESULTS In this study, we have developed a customized 3-dimensional diffusion tensor magnetic resonance imaging sequence on a clinical scanner that makes it possible to image an entire intact human heart specimen ex vivo at submillimeter resolution. The data from 8 human atrial specimens obtained with this technique present complete maps of the fibrous organization of the human atria. The findings demonstrate that the main features of atrial anatomy are mostly preserved across subjects although the exact location and orientation of atrial bundles vary. Using the full tractography data, we were able to cluster, visualize, and characterize the distinct major bundles in the human atria. Furthermore, quantitative characterization of the fiber angles across the atrial wall revealed that the transmural fiber angle distribution is heterogeneous throughout different regions of the atria. CONCLUSIONS The application of submillimeter diffusion tensor magnetic resonance imaging provides an unprecedented level of information on both human atrial structure, as well as its intersubject variability. The high resolution and fidelity of this data could enhance our understanding of structural contributions to atrial rhythm and pump disorders and lead to improvements in their targeted treatment.
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Affiliation(s)
- Farhad Pashakhanloo
- From the Departments of Biomedical Engineering (F.P., D.A.H., N.A.T., E.R.M.), Medicine (H.A.), and Radiology (S.M., E.R.M), Johns Hopkins University, Baltimore, MD; Radiology and Imaging Sciences, National Institutes of Health Clinical Center, Bethesda, MD (N.G, D.A.B.); and Departments of Bioengineering, Medicine, and Radiology, University of California, San Diego (E.R.M.)
| | - Daniel A Herzka
- From the Departments of Biomedical Engineering (F.P., D.A.H., N.A.T., E.R.M.), Medicine (H.A.), and Radiology (S.M., E.R.M), Johns Hopkins University, Baltimore, MD; Radiology and Imaging Sciences, National Institutes of Health Clinical Center, Bethesda, MD (N.G, D.A.B.); and Departments of Bioengineering, Medicine, and Radiology, University of California, San Diego (E.R.M.)
| | - Hiroshi Ashikaga
- From the Departments of Biomedical Engineering (F.P., D.A.H., N.A.T., E.R.M.), Medicine (H.A.), and Radiology (S.M., E.R.M), Johns Hopkins University, Baltimore, MD; Radiology and Imaging Sciences, National Institutes of Health Clinical Center, Bethesda, MD (N.G, D.A.B.); and Departments of Bioengineering, Medicine, and Radiology, University of California, San Diego (E.R.M.)
| | - Susumu Mori
- From the Departments of Biomedical Engineering (F.P., D.A.H., N.A.T., E.R.M.), Medicine (H.A.), and Radiology (S.M., E.R.M), Johns Hopkins University, Baltimore, MD; Radiology and Imaging Sciences, National Institutes of Health Clinical Center, Bethesda, MD (N.G, D.A.B.); and Departments of Bioengineering, Medicine, and Radiology, University of California, San Diego (E.R.M.)
| | - Neville Gai
- From the Departments of Biomedical Engineering (F.P., D.A.H., N.A.T., E.R.M.), Medicine (H.A.), and Radiology (S.M., E.R.M), Johns Hopkins University, Baltimore, MD; Radiology and Imaging Sciences, National Institutes of Health Clinical Center, Bethesda, MD (N.G, D.A.B.); and Departments of Bioengineering, Medicine, and Radiology, University of California, San Diego (E.R.M.)
| | - David A Bluemke
- From the Departments of Biomedical Engineering (F.P., D.A.H., N.A.T., E.R.M.), Medicine (H.A.), and Radiology (S.M., E.R.M), Johns Hopkins University, Baltimore, MD; Radiology and Imaging Sciences, National Institutes of Health Clinical Center, Bethesda, MD (N.G, D.A.B.); and Departments of Bioengineering, Medicine, and Radiology, University of California, San Diego (E.R.M.)
| | - Natalia A Trayanova
- From the Departments of Biomedical Engineering (F.P., D.A.H., N.A.T., E.R.M.), Medicine (H.A.), and Radiology (S.M., E.R.M), Johns Hopkins University, Baltimore, MD; Radiology and Imaging Sciences, National Institutes of Health Clinical Center, Bethesda, MD (N.G, D.A.B.); and Departments of Bioengineering, Medicine, and Radiology, University of California, San Diego (E.R.M.)
| | - Elliot R McVeigh
- From the Departments of Biomedical Engineering (F.P., D.A.H., N.A.T., E.R.M.), Medicine (H.A.), and Radiology (S.M., E.R.M), Johns Hopkins University, Baltimore, MD; Radiology and Imaging Sciences, National Institutes of Health Clinical Center, Bethesda, MD (N.G, D.A.B.); and Departments of Bioengineering, Medicine, and Radiology, University of California, San Diego (E.R.M.).
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Erdem FH, Ozturk S, Baltaci D, Donmez I, Alçelik A, Ayhan S, Yaz M. Detection of atrial electromechanical dysfunction in obesity. Acta Cardiol 2016; 70:678-84. [PMID: 26717216 DOI: 10.2143/ac.70.6.3120180] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
INTRODUCTION Obesity is associated with atrial fibrillation and is known as an independent risk factor. The aim of our study was to investigate if there was any association between the body mass index and atrial electromechanical intervals in obese and non-obese patients. METHODS Seventy patients were enrolled in the study. Body mass index (BMI), functional capacity, and fasting blood sugar were evaluated; then, these patients were divided into two groups, patients who had a BMI ≥ 30 were known as obese (35 patients) and those who had a BMI < 30 were known as non-obese patients. All patients were evaluated by transthoracic echocardiography. LA volumes were measured by the discs method in the apical four-chamber view. LA active and passive emptying volumes and fraction were calculated. Using TDI, atrial electromechanical coupling (PA) was measured from the lateral mitral annulus (PA lateral), septal mitral annulus (PA septum), and right ventricular tricuspid annulus (PA tricuspid). RESULTS LA diameter was significantly higher in obese patients (P = 0.021). LA passive emptying volume and fraction were significantly decreased in obese patients (P = 0.038 and P = 0.011). LA active emptying volume and fraction were significantly increased in obese patients (P = 0.001 and P = 0.001). Left intraatrial and interatrial electromechanical delay were significantly higher in obese patients (18.9 ± 3.8 vs 11.9 ± 2.0, P < 0.001 and 29.5 ± 4.1 vs 17.9 ± 2.5, P < 0.001). Also interatrial electromechanical delay correlated positively with BMI. CONCLUSION This study revealed that delayed atrial electromechanical interval and impaired LA mechanical functions were related to BMI in obese-patients. These findings may be an early sign of subclinical atrial dysfunction and arrhythmias in obese patients.
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Abd El Rahman M, Raedle-Hurst T, Rentzsch A, Schäfers HJ, Abdul-Khaliq H. Assessment of inter-atrial, inter-ventricular, and atrio-ventricular interactions in tetralogy of Fallot patients after surgical correction. Insights from two-dimensional speckle tracking and three-dimensional echocardiography. Cardiol Young 2015; 25:1254-62. [PMID: 25339059 DOI: 10.1017/S1047951114002108] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND We aimed to assess biatrial size and function, interactions on atrial and ventricular levels, and atrio-ventricular coupling in patients after tetralogy of Fallot repair. METHODS A total of 34 patients with a mean age of 20.9±9 years, and 35 healthy controls, underwent two-dimensional speckle tracking echocardiography for ventricular and atrial strain measurements and real-time three-dimensional echocardiography to assess ventricular and atrial volumes. RESULTS When compared with controls, tetralogy of Fallot patients had significantly reduced right atrial peak atrial longitudinal strain (p<0.01), right atrial peak atrial contraction strain (p<0.01), right atrial ejection fraction (p<0.01), left atrial peak atrial longitudinal strain (p<0.01), left atrial peak atrial contraction strain (p<0.05), and left atrial ejection fraction (p<0.01). In the tetralogy of Fallot group, left ventricular ejection fraction was negatively related to the right ventricular end-systolic volume normalised to body surface area (r=-0.62, p<0.01). An association was found in patients between the right atrial peak longitudinal strain and mean right ventricular strain (r=0.64, p<0.01). In patients, the left atrial peak longitudinal strain correlated negatively with right atrial end-diastolic volume normalised to body surface area (r=-0.67, p<0.01), whereas the left atrial ejection fraction correlated weakly with left ventricular ejection fraction (r=0.41, p<0.05). CONCLUSIONS In asymptomatic tetralogy of Fallot patients, biatrial dysfunction exists and can be quantified via two-dimensional speckle tracking echocardiography as well as real-time three-dimensional echocardiography. Different forms of interactions on atrial and ventricular levels are evident among such cohorts.
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Verdejo HE, Becerra E, Zalaquet R, Del Campo A, Garcia L, Troncoso R, Chiong M, Marin A, Castro PF, Lavandero S, Gabrielli L, Corbalán R. Atrial Function Assessed by Speckle Tracking Echocardiography Is a Good Predictor of Postoperative Atrial Fibrillation in Elderly Patients. Echocardiography 2015; 33:242-8. [PMID: 26394799 DOI: 10.1111/echo.13059] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
OBJECTIVE Advanced age is an independent predictor of postoperative atrial fibrillation (POAF) in patients undergoing coronary artery bypass surgery. We evaluated whether left atrial (LA) dysfunction assessed by strain contributes to identifying elderly patients prone to POAF. METHODS Case-control study of 70 subjects undergoing coronary artery bypass surgery. Clinical and laboratory characteristics were recorded at baseline and 72 hours after surgery. Echocardiography was performed during the preoperative period; LA dimensions and deformation by strain (systolic wave [LASs]) as well as strain rate (systolic wave [LASRs] and atrial contraction wave [LASRa]) were assessed. RESULTS Postoperative atrial fibrillation occurred in 38.5% of patients within the first 72 hours after surgery (28.5% of the younger vs. 48.6% of the older group). Baseline and postoperative inflammatory markers as well as total surgical and aortic clamp time were similar between groups. LA function was markedly impaired in subjects with POAF. Age correlated with LASs, LASRs, and LASRa. These associations remained consistent when subjects 75 years or older were considered separately. Both LASs and LASRa for patients with or without POAF, respectively, were significantly impaired in elderly subjects with POAF. Multivariate analysis provided further evidence that both LASs and age are independent predictors for POAF. CONCLUSION Age-related changes in atrial function preceding atrial dilation are evident only upon LA strain analysis. LA strain impairment is an independent predictor of POAF irrespective of age and may serve as a surrogate marker for biological processes involved in establishing the substrate for POAF.
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Affiliation(s)
- Hugo E Verdejo
- Advanced Center for Chronic Diseases, Universidad de Chile & Pontificia Universidad Catolica de Chile, Santiago, Chile.,Division of Cardiovascular Diseases, School of Medicine, Pontificia Universidad Catolica de Chile, Santiago, Chile
| | - Elia Becerra
- Advanced Center for Chronic Diseases, Universidad de Chile & Pontificia Universidad Catolica de Chile, Santiago, Chile.,Center for Molecular Studies of the Cell, Universidad de Chile, Santiago, Chile
| | - Ricardo Zalaquet
- Division of Cardiovascular Diseases, School of Medicine, Pontificia Universidad Catolica de Chile, Santiago, Chile
| | - Andrea Del Campo
- Center for Molecular Studies of the Cell, Universidad de Chile, Santiago, Chile
| | - Lorena Garcia
- Advanced Center for Chronic Diseases, Universidad de Chile & Pontificia Universidad Catolica de Chile, Santiago, Chile.,Center for Molecular Studies of the Cell, Universidad de Chile, Santiago, Chile
| | - Rodrigo Troncoso
- Advanced Center for Chronic Diseases, Universidad de Chile & Pontificia Universidad Catolica de Chile, Santiago, Chile.,Center for Molecular Studies of the Cell, Universidad de Chile, Santiago, Chile.,Nutrition Institute, Universidad de Chile, Santiago, Chile
| | - Mario Chiong
- Advanced Center for Chronic Diseases, Universidad de Chile & Pontificia Universidad Catolica de Chile, Santiago, Chile.,Center for Molecular Studies of the Cell, Universidad de Chile, Santiago, Chile
| | - Arnaldo Marin
- Department of Internal Medicine, Pontificia Universidad Catolica de Chile, Santiago, Chile
| | - Pablo F Castro
- Advanced Center for Chronic Diseases, Universidad de Chile & Pontificia Universidad Catolica de Chile, Santiago, Chile.,Division of Cardiovascular Diseases, School of Medicine, Pontificia Universidad Catolica de Chile, Santiago, Chile
| | - Sergio Lavandero
- Advanced Center for Chronic Diseases, Universidad de Chile & Pontificia Universidad Catolica de Chile, Santiago, Chile.,Center for Molecular Studies of the Cell, Universidad de Chile, Santiago, Chile.,Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Luigi Gabrielli
- Advanced Center for Chronic Diseases, Universidad de Chile & Pontificia Universidad Catolica de Chile, Santiago, Chile.,Division of Cardiovascular Diseases, School of Medicine, Pontificia Universidad Catolica de Chile, Santiago, Chile
| | - Ramón Corbalán
- Advanced Center for Chronic Diseases, Universidad de Chile & Pontificia Universidad Catolica de Chile, Santiago, Chile.,Division of Cardiovascular Diseases, School of Medicine, Pontificia Universidad Catolica de Chile, Santiago, Chile
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Kazui T, Henn MC, Watanabe Y, Kovács SJ, Lawrance CP, Greenberg JW, Moon M, Schuessler RB, Damiano RJ. The impact of 6 weeks of atrial fibrillation on left atrial and ventricular structure and function. J Thorac Cardiovasc Surg 2015; 150:1602-8. [PMID: 26432717 DOI: 10.1016/j.jtcvs.2015.08.105] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Revised: 08/05/2015] [Accepted: 08/29/2015] [Indexed: 11/25/2022]
Abstract
OBJECTIVE The impact of prolonged episodes of atrial fibrillation on atrial and ventricular function has been incompletely characterized. The purpose of this study was to investigate the influence of atrial fibrillation on left atrial and ventricular function in a rapid paced porcine model of atrial fibrillation. METHODS A control group of pigs (group 1, n = 8) underwent left atrial and left ventricular conductance catheter studies and fibrosis analysis. A second group (group 2, n = 8) received a baseline cardiac magnetic resonance imaging to characterize left atrial and left ventricular function. The atria were rapidly paced into atrial fibrillation for 6 weeks followed by cardioversion and cardiac magnetic resonance imaging. RESULTS After 6 weeks of atrial fibrillation, left atrial contractility defined by atrial end-systolic pressure-volume relationship slope was significantly lower in group 2 than in group 1 (1.1 ± 0.5 vs 1.7 ± 1.0; P = .041), whereas compliance from the end-diastolic pressure-volume relationship was unchanged (1.5 ± 0.9 vs 1.6 ± 1.3; P = .733). Compared with baseline, atrial fibrillation resulted in a significantly higher contribution of left atrial reservoir volume to stroke volume (32% vs 17%; P = .005) and lower left atrial booster pump volume contribution to stroke volume (19% vs 28%; P = .029). Atrial fibrillation also significantly increased maximum left atrial volume (206 ± 41 mL vs 90 ± 21 mL; P < .001). Left atrial fibrosis in group 2 was significantly higher than in group 1. Atrial fibrillation decreased left ventricular ejection fraction (29% ± 9% vs 58 ± 8%; P < .001), but left ventricular stroke volume was unchanged. CONCLUSIONS In a chronic model of atrial fibrillation, the left atrium demonstrated significant structural remodeling and decreased contractility. These data suggest that early intervention in patients with persistent atrial fibrillation might mitigate against adverse atrial and ventricular structural remodeling.
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Affiliation(s)
- Toshinobu Kazui
- Division of Cardiothoracic Surgery, Washington University School of Medicine, Barnes-Jewish Hospital, St Louis, Mo
| | - Mathew C Henn
- Division of Cardiothoracic Surgery, Washington University School of Medicine, Barnes-Jewish Hospital, St Louis, Mo
| | - Yoshiyuki Watanabe
- Division of Cardiothoracic Surgery, Washington University School of Medicine, Barnes-Jewish Hospital, St Louis, Mo
| | - Sándor J Kovács
- Cardiovascular Division, Washington University School of Medicine, Barnes-Jewish Hospital, St Louis, Mo
| | - Christopher P Lawrance
- Division of Cardiothoracic Surgery, Washington University School of Medicine, Barnes-Jewish Hospital, St Louis, Mo
| | - Jason W Greenberg
- Division of Cardiothoracic Surgery, Washington University School of Medicine, Barnes-Jewish Hospital, St Louis, Mo
| | - Marc Moon
- Division of Cardiothoracic Surgery, Washington University School of Medicine, Barnes-Jewish Hospital, St Louis, Mo
| | - Richard B Schuessler
- Division of Cardiothoracic Surgery, Washington University School of Medicine, Barnes-Jewish Hospital, St Louis, Mo
| | - Ralph J Damiano
- Division of Cardiothoracic Surgery, Washington University School of Medicine, Barnes-Jewish Hospital, St Louis, Mo.
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Kowallick JT, Morton G, Lamata P, Jogiya R, Kutty S, Hasenfuß G, Lotz J, Nagel E, Chiribiri A, Schuster A. Quantification of atrial dynamics using cardiovascular magnetic resonance: inter-study reproducibility. J Cardiovasc Magn Reson 2015; 17:36. [PMID: 25982348 PMCID: PMC4434799 DOI: 10.1186/s12968-015-0140-2] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2015] [Accepted: 05/01/2015] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Cardiovascular magnetic resonance (CMR) offers quantification of phasic atrial functions based on volumetric assessment and more recently, on CMR feature tracking (CMR-FT) quantitative strain and strain rate (SR) deformation imaging. Inter-study reproducibility is a key requirement for longitudinal studies but has not been defined for CMR-based quantification of left atrial (LA) and right atrial (RA) dynamics. METHODS Long-axis 2- and 4-chamber cine images were acquired at 9:00 (Exam A), 9:30 (Exam B) and 14:00 (Exam C) in 16 healthy volunteers. LA and RA reservoir, conduit and contractile booster pump functions were quantified by volumetric indexes as derived from fractional volume changes and by strain and SR as derived from CMR-FT. Exam A and B were compared to assess the inter-study reproducibility. Morning and afternoon scans were compared to address possible diurnal variation of atrial function. RESULTS Inter-study reproducibility was within acceptable limits for all LA and RA volumetric, strain and SR parameters. Inter-study reproducibility was better for volumetric indexes and strain than for SR parameters and better for LA than for RA dynamics. For the LA, reservoir function showed the best reproducibility (intraclass correlation coefficient (ICC) 0.94-0.97, coefficient of variation (CoV) 4.5-8.2%), followed by conduit (ICC 0.78-0.97, CoV 8.2-18.5%) and booster pump function (ICC 0.71-0.95, CoV 18.3-22.7). Similarly, for the RA, reproducibility was best for reservoir function (ICC 0.76-0.96, CoV 7.5-24.0%) followed by conduit (ICC 0.67-0.91, CoV 13.9-35.9) and booster pump function (ICC 0.73-0.90, CoV 19.4-32.3). Atrial dynamics were not measurably affected by diurnal variation between morning and afternoon scans. CONCLUSIONS Inter-study reproducibility for CMR-based derivation of LA and RA functions is acceptable using either volumetric, strain or SR parameters with LA function showing higher reproducibility than RA function assessment. Amongst the different functional components, reservoir function is most reproducibly assessed by either technique followed by conduit and booster pump function, which needs to be considered in future longitudinal research studies.
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Affiliation(s)
- Johannes T Kowallick
- Division of Imaging Sciences and Biomedical Engineering, The Rayne Institute, St Thomas' Hospital, King's College London, London, UK.
- Institute for Diagnostic and Interventional Radiology, Georg-August-University Göttingen, Göttingen, Germany.
- DZHK (German Centre for Cardiovascular Research), partner site Göttingen, Göttingen, Germany.
| | | | - Pablo Lamata
- Division of Imaging Sciences and Biomedical Engineering, The Rayne Institute, St Thomas' Hospital, King's College London, London, UK.
- Department of Computer Science, University of Oxford, Oxford, UK.
| | - Roy Jogiya
- Division of Imaging Sciences and Biomedical Engineering, The Rayne Institute, St Thomas' Hospital, King's College London, London, UK.
| | - Shelby Kutty
- Children's Hospital and Medical Center, University of Nebraska College of Medicine, Omaha, NE, USA.
| | - Gerd Hasenfuß
- Department of Cardiology and Pneumology, Georg-August-University Göttingen, Göttingen, Germany.
- DZHK (German Centre for Cardiovascular Research), partner site Göttingen, Göttingen, Germany.
| | - Joachim Lotz
- Institute for Diagnostic and Interventional Radiology, Georg-August-University Göttingen, Göttingen, Germany.
- DZHK (German Centre for Cardiovascular Research), partner site Göttingen, Göttingen, Germany.
| | - Eike Nagel
- Division of Imaging Sciences and Biomedical Engineering, The Rayne Institute, St Thomas' Hospital, King's College London, London, UK.
- Division of Cardiovascular Imaging, Goethe University Frankfurt and German Centre for Cardiovascular Research (DZHK, partner site Rhine-Main), Frankfurt, Germany.
| | - Amedeo Chiribiri
- Division of Imaging Sciences and Biomedical Engineering, The Rayne Institute, St Thomas' Hospital, King's College London, London, UK.
| | - Andreas Schuster
- Division of Imaging Sciences and Biomedical Engineering, The Rayne Institute, St Thomas' Hospital, King's College London, London, UK.
- Department of Cardiology and Pneumology, Georg-August-University Göttingen, Göttingen, Germany.
- DZHK (German Centre for Cardiovascular Research), partner site Göttingen, Göttingen, Germany.
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Haddad F, Spruijt OA, Denault AY, Mercier O, Brunner N, Furman D, Fadel E, Bogaard HJ, Schnittger I, Vrtovec B, Wu JC, de Jesus Perez V, Vonk-Noordegraaf A, Zamanian RT. Right Heart Score for Predicting Outcome in Idiopathic, Familial, or Drug- and Toxin-Associated Pulmonary Arterial Hypertension. JACC Cardiovasc Imaging 2015; 8:627-38. [PMID: 25981508 DOI: 10.1016/j.jcmg.2014.12.029] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Revised: 12/22/2014] [Accepted: 12/28/2014] [Indexed: 10/23/2022]
Abstract
OBJECTIVES This study sought to determine whether a simple score combining indexes of right ventricular (RV) function and right atrial (RA) size would offer good discrimination of outcome in patients with pulmonary arterial hypertension (PAH). BACKGROUND Identifying a simple score of outcome could simplify risk stratification of patients with PAH and potentially lead to improved tailored monitoring or therapy. METHODS We recruited patients from both Stanford University (derivation cohort) and VU University Medical Center (validation cohort). The composite endpoint for the study was death or lung transplantation. A Cox proportional hazard with bootstrap CI adjustment model was used to determine independent correlates of death or transplantation. A predictive score was developed using the beta coefficients of the multivariable models. RESULTS For the derivation cohort (n = 95), the majority of patients were female (79%), average age was 43 ± 11 years, mean pulmonary arterial pressure was 54 ± 14 mm Hg, and pulmonary vascular resistance index was 25 ± 12 Wood units × m(2). Over an average follow-up of 5 years, the composite endpoint occurred in 34 patients, including 26 deaths and 8 patients requiring lung transplant. On multivariable analysis, RV systolic dysfunction grade (hazard ratio [HR]: 3.4 per grade; 95% confidence interval [CI]: 2.0 to 7.8; p < 0.001), severe RA enlargement (HR: 3.0; 95% CI: 1.3 to 8.1; p = 0.009), and systemic blood pressure <110 mm Hg (HR: 3.3; 95% CI: 1.5 to 9.4; p < 0.001) were independently associated with outcome. A right heart (RH) score constructed on the basis of these 3 parameters compared favorably with the National Institutes of Health survival equation (0.88; 95% CI: 0.79 to 0.94 vs. 0.60; 95% CI: 0.49 to 0.71; p < 0.001) but was not statistically different than the REVEAL (Registry to Evaluate Early and Long-Term PAH Disease Management) score c-statistic of 0.80 (95% CI: 0.69 to 0.88) with p = 0.097. In the validation cohort (n = 87), the RH score remained the strongest independent correlate of outcome. CONCLUSIONS In patients with prevalent PAH, a simple RH score may offer good discrimination of long-term outcome.
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Affiliation(s)
- François Haddad
- Division of Cardiovascular Medicine, Stanford University and Stanford Cardiovascular Institute, Palo Alto, California.
| | - Onno A Spruijt
- Division of Pulmonary Medicine, VU University Medical Center, Amsterdam, the Netherlands
| | - Andre Y Denault
- Department of Anesthesia and Division of Critical Care, Montreal Heart Institute, Montreal University, Montreal, Quebec, Canada
| | - Olaf Mercier
- Cardiovascular and Thoracic Research Center, Marie-Lannelongue Surgical Center, Université Paris-Sud, Paris, France
| | - Nathan Brunner
- Division of Pulmonary and Critical Care Medicine, Stanford University and Vera Moulton Wall Center for Pulmonary Vascular Disease, Stanford, California
| | - David Furman
- Division of Cardiovascular Medicine, Stanford University and Stanford Cardiovascular Institute, Palo Alto, California
| | - Elie Fadel
- Cardiovascular and Thoracic Research Center, Marie-Lannelongue Surgical Center, Université Paris-Sud, Paris, France
| | - Harm J Bogaard
- Division of Pulmonary Medicine, VU University Medical Center, Amsterdam, the Netherlands
| | - Ingela Schnittger
- Division of Cardiovascular Medicine, Stanford University and Stanford Cardiovascular Institute, Palo Alto, California
| | - Bojan Vrtovec
- Division of Cardiovascular Medicine, Stanford University and Stanford Cardiovascular Institute, Palo Alto, California
| | - Joseph C Wu
- Division of Cardiovascular Medicine, Stanford University and Stanford Cardiovascular Institute, Palo Alto, California
| | - Vinicio de Jesus Perez
- Division of Pulmonary and Critical Care Medicine, Stanford University and Vera Moulton Wall Center for Pulmonary Vascular Disease, Stanford, California
| | - Anton Vonk-Noordegraaf
- Division of Pulmonary Medicine, VU University Medical Center, Amsterdam, the Netherlands
| | - Roham T Zamanian
- Division of Pulmonary and Critical Care Medicine, Stanford University and Vera Moulton Wall Center for Pulmonary Vascular Disease, Stanford, California
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Zhuang Y, Yong YH, Chen ML. Updating the evidence for the effect of radiofrequency catheter ablation on left atrial volume and function in patients with atrial fibrillation: a meta-analysis. JRSM Open 2014; 5:2054270414521185. [PMID: 25057380 PMCID: PMC4012673 DOI: 10.1177/2054270414521185] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Objectives To systematically review the effects of radiofrequency catheter ablation (RFCA) on left atrial (LA) size, volumes and function in patients with atrial fibrillation (AF). Methods We searched MEDLINE, EMBASE, ScienceDirect, Highwire, Cochrane Central Register of Controlled Trials, Cochrane Database of Systematic Reviews and the reference lists of retrieved reports in July 2012. Setting China Participants Twenty-six studies (enrolling 1821 patients) were included in the final analysis. Main outcome measures Changes of LA size or volumes and/or function in patients with AF after RFCA. Results Compared to pre-ablation values, there were significant decreases in LA diameter and LA volumes at post-ablation follow-up. However, compared to pre-ablation values, there were no significant differences in LA ejection fraction/LA active emptying fraction and LA strain at post-ablation follow-up. Decreases in LA diameter and LA volumes remained significant in those without AF recurrence but not in those with AF recurrence. LA ejection fraction/LA active emptying fraction did not decrease in patients without AF recurrence, whereas they decreased in patients with AF recurrence. As for LA strain, it seems that LA strain increases in patients without AF recurrence, with less fibrosis and with more LA volumes decrease, but the differences were not significant. Conclusions Successful RFCA in patients with AF significantly decreases LA size and volumes and does not seem to adversely affect LA function.
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Affiliation(s)
- Yan Zhuang
- Intensive Care Unit, Jiangsu Province Hospital of Traditional Chinese Medicine, Nanjing 210029, China
| | - Yong-Hong Yong
- Department of Cardiology, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Ming-Long Chen
- Department of Cardiology, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
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Ring L, Rana BS, Wells FC, Kydd AC, Dutka DP. Atrial function as a guide to timing of intervention in mitral valve prolapse with mitral regurgitation. JACC Cardiovasc Imaging 2014; 7:225-32. [PMID: 24529886 DOI: 10.1016/j.jcmg.2013.12.009] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2013] [Revised: 12/02/2013] [Accepted: 12/09/2013] [Indexed: 11/25/2022]
Abstract
OBJECTIVES The purpose of this study was to determine the clinical utility of left atrial (LA) functional indexes in patients with mitral valve prolapse (MVP) and mitral regurgitation (MR). BACKGROUND Timing of surgery for MVP remains challenging. We hypothesized that assessment of LA function may provide diagnostic utility in these patients. METHODS We studied 192 consecutive patients in sinus rhythm with MVP, classified into 3 groups: moderate or less MR (MOD group, n = 54); severe MR without surgical indication (SEV group, n = 52); and severe MR with ≥1 surgical indication (SURG group, n = 86). Comparison was made with 50 control patients. Using 2D speckle imaging, average peak contractile, conduit, and reservoir atrial strain was recorded. Using Simpson's method we recorded maximal left atrial volume (LAVmax) and minimal left atrial volume (LAVmin), from which the total left atrial emptying fraction (TLAEF) was derived: (LAVmax-LAVmin)/LAVmax × 100%. RESULTS TLAEF was similar in the MOD and control groups (61% vs. 57%; p = NS), was reduced in the SEV group (55%; p < 0.001 vs. control group), and markedly lower in the SURG group (40%; p < 0.001 vs. other groups). Reservoir strain demonstrated a similar pattern. Contractile strain was similarly reduced in the MOD and SEV groups (MOD 15%; SEV 14%; p = NS; both p < 0.05 vs. control group 20%) and further reduced in the SURG group (8%; p < 0.001 vs. other groups). By multivariate analysis, TLAEF (odds ratio [OR]: 0.78; p < 0.001), reservoir strain (OR: 0.91; p = 0.028), and contractile strain (OR: 0.86; p = 0.021) were independent predictors of severe MR requiring surgery. Using receiver-operating characteristic analysis, TLAEF <50% demonstrated 91% sensitivity and 92% specificity for predicting MVP with surgical indication (area under the curve: 0.96; p < 0.001). CONCLUSIONS We report the changes in left atrial function in humans with MVP and the relationship of LA dysfunction to clinical indications for mitral valve surgery. We propose that the findings support the utility of quantitative assessment of atrial function by echocardiography as an additional tool to guide the optimum timing of surgery for MVP.
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Affiliation(s)
- Liam Ring
- Department of Medicine, University of Cambridge, Addenbrooke's Hospital, Cambridge, United Kingdom.
| | - Bushra S Rana
- Papworth Hospital NHS Foundation Trust, Papworth Everard, United Kingdom
| | - Francis C Wells
- Papworth Hospital NHS Foundation Trust, Papworth Everard, United Kingdom
| | - Anna C Kydd
- Department of Medicine, University of Cambridge, Addenbrooke's Hospital, Cambridge, United Kingdom
| | - David P Dutka
- Department of Medicine, University of Cambridge, Addenbrooke's Hospital, Cambridge, United Kingdom
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Abstract
BACKGROUND Postoperative atrial fibrillation is the most common arrhythmia after coronary artery bypass grafting, with a reported incidence of 10% to 60%. Preoperative clinical and echocardiographic data, especially the atrial electromechanical interval, predict postoperative atrial fibrillation in elective coronary artery bypass patients. METHODS A prospective study evaluated preoperative clinical and echocardiographic data in 192 patients who underwent elective coronary artery bypass from 2010 to 2012. RESULTS 18 (9.37%) patients developed postoperative atrial fibrillation. Compared to patients without postoperative atrial fibrillation, these 18 had significantly longer intensive care unit and hospital stays, they were significantly older (58.62 ± 10.02 vs. 53.22 ± 8.23 years; p = 0.02), with a larger left atrial volume (83.39 ± 8.31 vs. 55.47 ± 8.37 cm(3), p = 0.001), longer atrial electromechanical interval (133.67 ± 8.15 vs. 98.05 ± 6.71 ms p < 0.0001), and lower tissue Doppler imaging systolic velocity wave amplitude (6.6 ± 1 vs. 9.4 ± 2.2 cm·s(-1); p = 0.001); they also had a higher prevalence of hypertension (61.11% vs. 38.5%; p = 0.04). Using 115 ms as the cutoff value of atrial electromechanical interval enabled us to detect patients who developed postoperative atrial fibrillation with 100% sensitivity, 77% specificity, 78% positive predictive value, and 100% negative predictive value. CONCLUSION Older hypertensive patients are at higher risk of developing postoperative atrial fibrillation. Preoperative measurement of atrial electromechanical interval by tissue Doppler echocardiography is a useful predictor of postoperative atrial fibrillation in coronary artery bypass patients.
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Affiliation(s)
- Mohamed Ahmed Elawady
- Saud Al-Babtain Cardiac Center, Dammam, Saudi Arabia Cardiothoracic Surgery Department, Banha Faculty of Medicine, Banha University, Egypt
| | - Mohamed Bashandy
- Saud Al-Babtain Cardiac Center, Dammam, Saudi Arabia Cardiology Department, Faculty of Medicine, Alazhar University, Egypt
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Chen CW, Chen SY, Tung RN, Chen YT, Chiang YY, Hsu HY. Changes in left atrial functional indexes in ischemic stroke patients. J Chin Med Assoc 2013; 76:564-9. [PMID: 23876830 DOI: 10.1016/j.jcma.2013.06.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2012] [Accepted: 02/07/2013] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND Increased left atrial (LA) size has been proposed as a predictor of multiple adverse cardiovascular events including stroke. LA dysfunction can occur in the absence of increased LA size. However, the relationship between stroke and changes in LA function is not well known. METHODS Patients with acute ischemic stroke and healthy controls were enrolled prospectively. Stroke patients received standard work-ups to determine the etiology of their strokes. Those patients with significant cardiac arrhythmia and heart failure were excluded. All participants received echocardiography examination. Conventional echocardiographic parameters were calculated and cardiac contractile characteristics of the left atrium and left ventricle were analyzed using vector velocity imaging (VVI) technique. RESULTS In total, 87 patients with acute ischemic stroke and 20 controls were recruited. The mitral inflow E-wave velocities were lower and A-wave velocities were higher in stroke patients (0.76 ± 0.19 vs. 0.84 ± 0.16, p = 0.048; and 0.97 ± 0.20 vs. 0.76 ± 0.11, p < 0.001 respectively). Stroke patients had a higher active emptying percent of total LA emptying (60.5 ± 19.0%) compared with that in controls (33.5 ± 11.7%, p < 0.001). The minimal LA volume was larger in stroke patients (15.0 ± 10.5 mL) than that in controls (9.9 ± 4.2 mL, p = 0.021), whereas there was no difference in maximal LA volume between stroke patients (37.3 ± 16.5 mL) and controls (33.3 ± 9.9 ml, p = 0.366). The diastolic emptying index of the LA was significantly lower in stroke patients compared with that in controls (61.4 ± 14.6% vs. 70.2 ± 11.0%, p = 0.016). The mitral A-wave velocity and active emptying percent of total LA emptying were significantly higher in all stroke subtypes than those in controls. CONCLUSION Acute ischemic stroke patients had altered mitral inflow velocities and emptying function of the left atrium. VVI is convenient for quantitative assessment of left atrial volumes and contractile characteristics. Functional changes of LA may occur without significant structural changes. Therefore, the clinical implications of LA functional indexes require further study.
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Affiliation(s)
- Chung-Wen Chen
- Department of Neurology, Tungs' Taichung Metro Harbor Hospital, Taichung, Taiwan, ROC; School of Medicine, Chung Shan Medical University, Taichung, Taiwan, ROC
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Abstract
OBJECTIVE To study the sequence of atrial activation and the interatrial electromechanical delay (IEmD) noninvasively in healthy subjects during sinus rhythm (SR). METHODS AND RESULTS In 66 SR healthy subjects P-wave activation was analyzed by means of vectorcardiography. The timing of atrial contractions was measured as the intervals between the P-wave and the A-wave of the Doppler right and left ventricular inflows (P-A(t) and P-A(m)), and IEmD was calculated as the algebraic difference P-A(m)- P-A(t). In the horizontal plane the vectorcardiographic P-loop was anteroposterior ("typical", 41 subjects), anterior (18), or posterior (7). IEmD (mean +/- SE 17 +/- 8 ms) was directly related to R-R and P-R intervals. IEmD was significantly shorter in anterior and posterior P loops than in the typical (6.5 +/- 5.3 and 8.1 +/- 10.1, respectively, vs 24.2 +/- 3.1 ms). In the posterior P-loop group, who exhibited longer P-A(t), mitral E-wave velocity and E/A ratio were reduced, and left atrial booster function was increased. CONCLUSION IEmD was widely variable in SR, reflecting the origin site of sinus impulse, which independently influenced ventricular filling dynamics.
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Affiliation(s)
- G Barletta
- Department of Cardiology, Careggi Hospital, University of Florence, Italy.
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Yoshida N, Okamoto M, Fukuhara T. Left atrial wall motion velocity measured by the velocity profile method with tissue Doppler echocardiography in normal subjects: its relation to aging. J Med Ultrason (2001) 2004; 31:103-9. [PMID: 27278745 DOI: 10.1007/s10396-004-0017-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2003] [Accepted: 12/15/2003] [Indexed: 10/26/2022]
Abstract
PURPOSE The aim of this study was to find a method for measuring left atrial wall velocity (LAWV) during atrial contraction using tissue Doppler echocardiography. METHODS The velocity profile method was used to measure left atrial wall velocity at several sites in 64 healthy individuals aged 25-84 years. We attempted to find maximum left atrial wall velocity (LAWVmax) by mapping on four-chamber, two-chamber, short-axis, and long-axis views and studied the relations between maximum left atrial wall velocity, age, and peak velocity during atrial contraction in mitral or pulmonary venous flow. RESULTS Left atrial wall velocity was varied by changing the position of the sampling volume. The velocity profile pattern was similar to the left ventricular wall velocity pattern near the mitral valve annulus in the left atrium. Left atrial wall velocity had a positive peak during atrial contraction when the sample volume was located in the cranial and dorsal area. Maximum left atrial wall velocity was obtained in 74% of cases with the two-chamber view. Maximum left atrial wall velocity in healthy subjects was 3.1 ± 0.7 cm/s, and the duration of the atrial contraction was 112 ± 12 ms. Maximum left atrial wall velocity increased slightly with age but was not significantly correlated with peak velocity during atrial contraction in mitral or pulmonary venous flow. CONCLUSIONS Left atrial wall velocity was measured by the velocity profile method in 64 healthy subjects aged 25-84 years. Maximum left atrial wall velocity increased slightly with age but was not significantly correlated with the peak velocity during atrial contraction in mitral or pulmonary venous flow.
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