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Iwahashi N, Kirigaya J, Gohbara M, Abe T, Horii M, Hanajima Y, Toya N, Takahashi H, Kirigaya H, Minamimoto Y, Kimura Y, Okada K, Matsuzawa Y, Hibi K, Kosuge M, Ebina T, Tamura K, Kimura K. Mechanical dispersion combined with global longitudinal strain estimated by three dimensional speckle tracking in patients with ST elevation myocardial infarction. IJC HEART & VASCULATURE 2022; 40:101028. [PMID: 35434256 PMCID: PMC9010606 DOI: 10.1016/j.ijcha.2022.101028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 03/27/2022] [Accepted: 04/03/2022] [Indexed: 11/13/2022]
Abstract
LV mechanical dispersion is a measure of regional heterogeneity of myocardial contraction. LV mechanical dispersion has been reported as an important prognosticator in STEMI. 3D speckle tracking enables us to precisely measure LV mechanical dispersion. LV mechanical dispersion by 3D speckle tracking can precisely predict prognosis.
Background The role of left ventricular (LV) mechanical dispersion estimated after an ST elevation acute myocardial infarction (STEMI) remains unclear. Methods The study participants were 208 consecutive patients (152 men, age = 72 years) presenting with STEMI for the first time who underwent primary percutaneous coronary intervention (PCI) within 12 h of STEMI onset. Within 48 h of PCI (mean = 24 h), 2D and 3D speckle-tracking echocardiography were performed. The global longitudinal strain (GLS) was calculated using 3D (3D-GLS) and 2D (2D-GLS) speckle tracking. Mechanical dispersion was defined using the standard deviation (SD) of the time to regional peak longitudinal strain (LS) for all 16 segments for both 2D-STE and 3D-STE (2D-LS-SD, 3D-LS-SD). Infarct size was estimated by Tc99m-sestamibi as the total area of < 50% of the uptake area at 2 weeks. The patients were followed up for a longer period of time (median118months) and checked for major adverse cardiac events (MACE: cardiac death, heart failure). Results During follow-up, 55 patients experienced MACE. The cut-off values were determined using receiver operating characteristic curves. The multivariate analysis revealed that a 3D-LS-SD > 56.7 ms was a significant predictor of MACEs (hazard ratio = 1.991, 95% confidence interval 1.033–3.613, p = 0.03), but 2D-LS-SD > 58.1 ms was not an independent predictor of MACEs (hazard ratio = 1.577, 95% confidence interval 0.815–3.042, p = 0.1). Furthermore, the combination of 3D-GLS and 3D-LS-SD had accurate predictability for MACE, as shown by the Kaplan-Meier curves (log rank, χ2 = 94.1, p < 0.0001). Conclusions LV mechanical dispersion besides 3D-GLS assessed by 3D-STE immediately after PCI can predict long-term prognosis.
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Sakatani T, Kasahara T, Irie D, Tsubakimoto Y, Matsuo A, Fujita H, Inoue K. Prognostic value of left ventricular mechanical dyssynchrony induced by exercise stress in patients with normal myocardial perfusion single-photon emission computed tomography. J Nucl Cardiol 2022; 29:1-10. [PMID: 33083982 DOI: 10.1007/s12350-020-02389-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Accepted: 09/17/2020] [Indexed: 11/28/2022]
Abstract
BACKGROUND Left ventricular mechanical dyssynchrony (LVMD) induced by exercise stress was reported to be clinically useful in detecting multivessel coronary artery diseases. The aim of this study was to compare the prognostic value of LVMD induced by pharmacological stress with that induced by exercise stress. METHODS We retrospectively examined 918 consecutive patients who underwent exercise (N = 310) or pharmacological stress (N = 608) 99mTc-tetrofosmin single-photon emission computed tomography (SPECT) with normal myocardial perfusion. LVMD was evaluated by phase analysis as the indices of phase bandwidth and phase standard deviation (PSD). RESULTS During the follow-up period (2.2 ± 1.9 years), 74 major cardiac events (MCEs) occurred (7 cases of cardiac death, 17 cases of heart failure, and 50 cases of coronary intervention). In global patients, the indices of LVMD on rest images were significantly greater in patients with MCEs (bandwidth (°): 51 ± 31 vs 37 ± 21, P = .001, PSD: 14 ± 9 vs 10 ± 6, P = .001). The exercise stress bandwidth was significantly higher in patients with MCEs (62 ± 37° vs 42 ± 21°, P = .026), as was the pharmacological stress bandwidth (57 ± 35° vs 43 ± 24°, P = .006). Multivariate analysis demonstrated the exercise stress bandwidth to be an independent predictor of MCEs (HR 1.017, CI 1.003 to 1.032, P = .019), but the pharmacological stress bandwidth had no influence on MCEs. CONCLUSIONS LVMD induced by exercise stress was an independent predictor of MCEs in patients with normal perfusion SPECT, whereas that induced by pharmacological stress had no association with further events.
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Affiliation(s)
- Tomohiko Sakatani
- Department of Cardiology, Japanese Red Cross Kyoto Daini Hospital, 355-5 Haruobi-Cho, Kamigyo-Ku, Kyoto, 602-8026, Japan.
| | - Takeru Kasahara
- Department of Cardiology, Japanese Red Cross Kyoto Daini Hospital, 355-5 Haruobi-Cho, Kamigyo-Ku, Kyoto, 602-8026, Japan
| | - Daisuke Irie
- Department of Cardiology, Japanese Red Cross Kyoto Daini Hospital, 355-5 Haruobi-Cho, Kamigyo-Ku, Kyoto, 602-8026, Japan
| | - Yoshinori Tsubakimoto
- Department of Cardiology, Japanese Red Cross Kyoto Daini Hospital, 355-5 Haruobi-Cho, Kamigyo-Ku, Kyoto, 602-8026, Japan
| | - Akiko Matsuo
- Department of Cardiology, Japanese Red Cross Kyoto Daini Hospital, 355-5 Haruobi-Cho, Kamigyo-Ku, Kyoto, 602-8026, Japan
| | - Hiroshi Fujita
- Department of Cardiology, North Medical Center, Kyoto Prefectural University of Medicine, 481 Otokoyama, Yosano-cho, Kyoto, 629-2261, Japan
| | - Keiji Inoue
- Department of Cardiology, Japanese Red Cross Kyoto Daini Hospital, 355-5 Haruobi-Cho, Kamigyo-Ku, Kyoto, 602-8026, Japan
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3
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Kuronuma K, Miller RJH, Otaki Y, Van Kriekinge SD, Diniz MA, Sharir T, Hu LH, Gransar H, Liang JX, Parekh T, Kavanagh PB, Einstein AJ, Fish MB, Ruddy TD, Kaufmann PA, Sinusas AJ, Miller EJ, Bateman TM, Dorbala S, Di Carli M, Tamarappoo BK, Dey D, Berman DS, Slomka PJ. Prognostic Value of Phase Analysis for Predicting Adverse Cardiac Events Beyond Conventional Single-Photon Emission Computed Tomography Variables: Results From the REFINE SPECT Registry. Circ Cardiovasc Imaging 2021; 14:e012386. [PMID: 34281372 DOI: 10.1161/circimaging.120.012386] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Phase analysis of single-photon emission computed tomography myocardial perfusion imaging provides dyssynchrony information which correlates well with assessments by echocardiography, but the independent prognostic significance is not well defined. This study assessed the independent prognostic value of single-photon emission computed tomography-myocardial perfusion imaging phase analysis in the largest multinational registry to date across all modalities. METHODS From the REFINE SPECT (Registry of Fast Myocardial Perfusion Imaging With Next Generation SPECT), a total of 19 210 patients were included (mean age 63.8±12.0 years and 56% males). Poststress total perfusion deficit, left ventricular ejection fraction, and phase variables (phase entropy, bandwidth, and SD) were obtained automatically. Cox proportional hazards analyses were performed to assess associations with major adverse cardiac events (MACE). RESULTS During a follow-up of 4.5±1.7 years, 2673 (13.9%) patients experienced MACE. Annualized MACE rates increased with phase variables and were ≈4-fold higher between the second and highest decile group for entropy (1.7% versus 6.7%). Optimal phase variable cutoff values stratified MACE risk in patients with normal and abnormal total perfusion deficit and left ventricular ejection fraction. Only entropy was independently associated with MACE. The addition of phase entropy significantly improved the discriminatory power for MACE prediction when added to the model with total perfusion deficit and left ventricular ejection fraction (P<0.0001). CONCLUSIONS In a largest to date imaging study, widely representative, international cohort, phase variables were independently associated with MACE and improved risk stratification for MACE beyond the prediction by perfusion and left ventricular ejection fraction assessment alone. Phase analysis can be obtained fully automatically, without additional radiation exposure or cost to improve MACE risk prediction and, therefore, should be routinely reported for single-photon emission computed tomography-myocardial perfusion imaging studies.
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Affiliation(s)
- Keiichiro Kuronuma
- Department of Imaging, Medicine, and Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA (K.K., R.J.H.M., Y.O., S.D.V.K., M.A.D., L.-H.H., H.G., J.X.L., T.P., P.B.K. B.K.T., D.D., D.S.B., P.J.S.).,Department of Cardiology, Nihon University, Tokyo, Japan (K.K.)
| | - Robert J H Miller
- Department of Imaging, Medicine, and Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA (K.K., R.J.H.M., Y.O., S.D.V.K., M.A.D., L.-H.H., H.G., J.X.L., T.P., P.B.K. B.K.T., D.D., D.S.B., P.J.S.).,Department of Cardiac Sciences, University of Calgary, Alberta, Canada (R.J.H.M.)
| | - Yuka Otaki
- Department of Imaging, Medicine, and Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA (K.K., R.J.H.M., Y.O., S.D.V.K., M.A.D., L.-H.H., H.G., J.X.L., T.P., P.B.K. B.K.T., D.D., D.S.B., P.J.S.)
| | - Serge D Van Kriekinge
- Department of Imaging, Medicine, and Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA (K.K., R.J.H.M., Y.O., S.D.V.K., M.A.D., L.-H.H., H.G., J.X.L., T.P., P.B.K. B.K.T., D.D., D.S.B., P.J.S.)
| | - Marcio A Diniz
- Department of Imaging, Medicine, and Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA (K.K., R.J.H.M., Y.O., S.D.V.K., M.A.D., L.-H.H., H.G., J.X.L., T.P., P.B.K. B.K.T., D.D., D.S.B., P.J.S.)
| | - Tali Sharir
- Department of Nuclear Cardiology, Assuta Medical Centers, Tel Aviv, and Ben Gurion University of the Negev, Beer Sheba, Israel (T.S.)
| | - Lien-Hsin Hu
- Department of Imaging, Medicine, and Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA (K.K., R.J.H.M., Y.O., S.D.V.K., M.A.D., L.-H.H., H.G., J.X.L., T.P., P.B.K. B.K.T., D.D., D.S.B., P.J.S.).,Department of Nuclear Medicine, Taipei Veterans General Hospital, Taiwan (L.-H.H.)
| | - Heidi Gransar
- Department of Imaging, Medicine, and Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA (K.K., R.J.H.M., Y.O., S.D.V.K., M.A.D., L.-H.H., H.G., J.X.L., T.P., P.B.K. B.K.T., D.D., D.S.B., P.J.S.)
| | - Joanna X Liang
- Department of Imaging, Medicine, and Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA (K.K., R.J.H.M., Y.O., S.D.V.K., M.A.D., L.-H.H., H.G., J.X.L., T.P., P.B.K. B.K.T., D.D., D.S.B., P.J.S.)
| | - Tejas Parekh
- Department of Imaging, Medicine, and Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA (K.K., R.J.H.M., Y.O., S.D.V.K., M.A.D., L.-H.H., H.G., J.X.L., T.P., P.B.K. B.K.T., D.D., D.S.B., P.J.S.)
| | - Paul B Kavanagh
- Department of Imaging, Medicine, and Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA (K.K., R.J.H.M., Y.O., S.D.V.K., M.A.D., L.-H.H., H.G., J.X.L., T.P., P.B.K. B.K.T., D.D., D.S.B., P.J.S.)
| | - Andrew J Einstein
- Division of Cardiology, Departments of Medicine and of Radiology, Columbia University Irving Medical Center and New York-Presbyterian Hospital (A.J.E.)
| | - Mathews B Fish
- Oregon Heart and Vascular Institute, Sacred Heart Medical Center, Springfield (M.B.F.)
| | - Terrence D Ruddy
- Division of Cardiology, University of Ottawa Heart Institute, ON, Canada (T.D.R.)
| | - Philipp A Kaufmann
- Department of Nuclear Medicine, Cardiac Imaging, University Hospital Zurich, Switzerland (P.A.K.)
| | - Albert J Sinusas
- Section of Cardiovascular Medicine, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT (A.J.S., E.J.M.)
| | - Edward J Miller
- Section of Cardiovascular Medicine, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT (A.J.S., E.J.M.)
| | | | - Sharmila Dorbala
- Division of Nuclear Medicine and Molecular Imaging, Department of Radiology, Brigham and Women's Hospital, Boston, MA (S.D., M.D.C.)
| | - Marcelo Di Carli
- Division of Nuclear Medicine and Molecular Imaging, Department of Radiology, Brigham and Women's Hospital, Boston, MA (S.D., M.D.C.)
| | - Balaji K Tamarappoo
- Department of Imaging, Medicine, and Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA (K.K., R.J.H.M., Y.O., S.D.V.K., M.A.D., L.-H.H., H.G., J.X.L., T.P., P.B.K. B.K.T., D.D., D.S.B., P.J.S.)
| | - Damini Dey
- Department of Imaging, Medicine, and Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA (K.K., R.J.H.M., Y.O., S.D.V.K., M.A.D., L.-H.H., H.G., J.X.L., T.P., P.B.K. B.K.T., D.D., D.S.B., P.J.S.)
| | - Daniel S Berman
- Department of Imaging, Medicine, and Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA (K.K., R.J.H.M., Y.O., S.D.V.K., M.A.D., L.-H.H., H.G., J.X.L., T.P., P.B.K. B.K.T., D.D., D.S.B., P.J.S.)
| | - Piotr J Slomka
- Department of Imaging, Medicine, and Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA (K.K., R.J.H.M., Y.O., S.D.V.K., M.A.D., L.-H.H., H.G., J.X.L., T.P., P.B.K. B.K.T., D.D., D.S.B., P.J.S.)
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4
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Bakaeen FG, Gaudino M, Whitman G, Doenst T, Ruel M, Taggart DP, Stulak JM, Benedetto U, Anyanwu A, Chikwe J, Bozkurt B, Puskas JD, Silvestry SC, Velazquez E, Slaughter MS, McCarthy PM, Soltesz EG, Moon MR. 2021: The American Association for Thoracic Surgery Expert Consensus Document: Coronary artery bypass grafting in patients with ischemic cardiomyopathy and heart failure. J Thorac Cardiovasc Surg 2021; 162:829-850.e1. [PMID: 34272070 DOI: 10.1016/j.jtcvs.2021.04.052] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Accepted: 04/20/2021] [Indexed: 12/13/2022]
Affiliation(s)
- Faisal G Bakaeen
- Department of Thoracic and Cardiovascular Surgery, Coronary Center, Heart, Vascular, and Thoracic Institute, Cleveland Clinic, Cleveland, Ohio.
| | - Mario Gaudino
- Department of Cardiothoracic Surgery, Weill Cornell Medicine, New York, NY
| | - Glenn Whitman
- Division of Cardiac Surgery, Department of Surgery, Johns Hopkins University, Baltimore, Md
| | - Torsten Doenst
- Department of Cardiothoracic Surgery, Friedrich-Schiller-University Jena, University Hospital, Jena, Germany
| | - Marc Ruel
- Division of Cardiac Surgery, University of Ottawa Heart Institute, Ottawa, Ontario, Canada
| | - David P Taggart
- Nuffield Department of Surgical Sciences, University of Oxford, John Radcliffe Hospital, Oxford, United Kingdom
| | - John M Stulak
- Division of Cardiothoracic Surgery, Department of Surgery, Mayo Clinic, Rochester, Minn
| | - Umberto Benedetto
- Bristol Heart Institute, University of Bristol, Bristol, United Kingdom
| | - Anelechi Anyanwu
- Department of Cardiovascular Surgery, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Joanna Chikwe
- Department of Cardiac Surgery, Smidt Heart Institute at Cedars-Sinai, Los Angeles, Calif
| | - Biykem Bozkurt
- Division of Cardiology, Department of Medicine, Baylor College of Medicine, Houston, Tex
| | - John D Puskas
- Department of Cardiovascular Surgery, Mount Sinai Morningside Hospital, New York, NY
| | | | - Eric Velazquez
- Department of Cardiovascular Medicine, Heart and Vascular Center, Yale New Haven Health, New Haven, Conn
| | - Mark S Slaughter
- Department Cardiovascular and Thoracic Surgery, University of Louisville, Louisville, Ky
| | - Patrick M McCarthy
- Bluhm Cardiovascular Institute and Division of Cardiac Surgery in the Department of Surgery, Northwestern University, Chicago, Ill
| | - Edward G Soltesz
- Department of Thoracic and Cardiovascular Surgery, Coronary Center, Heart, Vascular, and Thoracic Institute, Cleveland Clinic, Cleveland, Ohio
| | - Marc R Moon
- Division of Cardiothoracic Surgery, Washington University School of Medicine, Barnes-Jewish Hospital, St Louis, Mo
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5
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Koshy SKG, George MK, George LK. Value of early detection of left ventricular mechanical dyssynchrony for assessing long‐term outcomes. Echocardiography 2019; 36:1970-1971. [DOI: 10.1111/echo.14527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Affiliation(s)
- Santhosh K. G. Koshy
- Department of Internal Medicine Texas Tech University Health Sciences Center Lubbock Texas
| | - Mathew K. George
- Department of Anatomy and Neurobiology University of Tennessee Health Sciences Center Memphis Tennessee
| | - Lekha K. George
- Department of Internal Medicine Texas Tech University Health Sciences Center Lubbock Texas
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6
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Jha AK, Malik V. Diagnosis and Management of Ischemic Mitral Regurgitation: Evidence-Based Clinical Decision Making at the Point of Care. Semin Cardiothorac Vasc Anesth 2019; 23:268-281. [PMID: 29291344 DOI: 10.1177/1089253217745363] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/11/2023]
Abstract
Anatomical, functional, and pathophysiologic mechanisms of ischemic mitral regurgitation (IMR) are markedly different from the primary mitral regurgitation. The older and ubiquitous cutoff of EROA (effective regurgitant orifice area) and Rvol (regurgitant volume) for IMR has been reinstated in the new guideline after a brief hiatus. There had always been a lack of good-quality evidence for its introduction for guiding IMR severity in the previous guideline, and we still do not have quality evidences that could justify its reintroduction. Unlike primary MR, IMR is usually associated with reduced ejection fraction. Therefore, it appears unrealistic to keep the similar cutoff for primary MR and IMR. The cutoff of severity can be modified according to projected values of Rvol normalized to ejection fraction and EROA normalized to Rvol. In addition, the treatment outcome in these patients is determined by factors (left ventricular dyssynchrony, annular dilatation, tenting area, tenting height, tenting volume, and myocardial viability) other than the simple grading. In this review article, a series of graph have been constructed from the numerical data derived from the literatures on IMR to depict the relationship between EROA, Rvol, left ventricular end diastolic volume, and ejection fraction in order to obtain a reasonable projection formula for EROA and Rvol. Furthermore, a management algorithm has been proposed for patients with IMR undergoing coronary artery bypass grafting based on echocardiographic predictors that influence the postoperative outcome.
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Affiliation(s)
- Ajay Kumar Jha
- 1 Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India
| | - Vishwas Malik
- 2 All India Institute of Medical Sciences, New Delhi, India
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7
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Marcassa C. Neuronal damage and abnormal contraction: Is the circle of synchronicity complete? J Nucl Cardiol 2019; 26:880-882. [PMID: 29327249 DOI: 10.1007/s12350-017-1167-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Accepted: 12/06/2017] [Indexed: 10/18/2022]
Affiliation(s)
- Claudio Marcassa
- Cardiology Department, Maugeri Clinical and Scientific Institutes, IRCCS, Scientific Institute of Veruno, Via Per Revislate 13, 28010, Veruno, NO, Italy.
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8
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Biton Y, Costa J, Zareba W, Baman JR, Goldenberg I, McNitt S, Solomon SD, Polonsky B, Kutyifa V. Predictors of long-term mortality with cardiac resynchronization therapy in mild heart failure patients with left bundle branch block. Clin Cardiol 2018; 41:1358-1366. [PMID: 30141210 DOI: 10.1002/clc.23058] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Revised: 08/15/2018] [Accepted: 08/21/2018] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND Cardiac resynchronization therapy (CRT) is highly beneficial in patients with heart failure (HF) and left bundle branch block (LBBB); however, up to 30% of patients in this selected group are nonresponders. HYPOTHESIS We hypothesized that clinical and echocardiographic variables can be used to develop a simple mortality risk stratification score in CRT. METHODS Best-subsets proportional-hazards regression analysis was used to develop a simple clinical risk score for all-cause mortality in 756 patients with LBBB allocated to the CRT with defibrillator (CRT-D) group enrolled in the multicenter automatic defibrillator implantation trial with cardiac resynchronization therapy. The score was used to assess the mortality risk within the CRT-D group and the associations with mortality reduction with CRT-D vs implantable cardioverter defibrillator (ICD) in each risk category. RESULTS Four clinical variables comprised the risk score: age ≥ 65, creatinine ≥ 1.4 mg/dL, history of coronary artery bypass graft, and left ventricular ejection fraction (LVEF) < 26%. Every 1 point increase in the score was associated with 2-fold increased mortality within the CRT-D arm (P < 0.001). CRT-D was associated with mortality reduction as compared with ICD only in patients with moderate risk: score 0 (HR = 0.80, P = 0.615), score 1 (HR = 0.54, P = 0.019), score 2 (HR = 0.54, P = 0.016), score 3-4 risk factors (HR = 1.08, P = 0.811); however, the device by score interaction was not significant (P = 0.306). The score was also significantly predictive of left ventricular reverse remodeling (P < 0.001). CONCLUSIONS Four clinical variables can be used for improved mortality risk stratification in mild HF patients with LBBB implanted with CRT-D.
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Affiliation(s)
- Yitschak Biton
- Cardiology Division, University of Rochester Medical Center, Rochester, New York.,Cardiac Arrhythmia Service, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts.,Hadassah Ein Kerem Medical Center, Hebrew University, Hadassah Medical School, Jerusalem, Israel
| | - Jason Costa
- Cardiology Division, University of Rochester Medical Center, Rochester, New York
| | - Wojciech Zareba
- Cardiology Division, University of Rochester Medical Center, Rochester, New York
| | - Jayson R Baman
- Cardiology Division, University of Rochester Medical Center, Rochester, New York.,Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Ilan Goldenberg
- Cardiology Division, University of Rochester Medical Center, Rochester, New York
| | - Scott McNitt
- Cardiology Division, University of Rochester Medical Center, Rochester, New York
| | - Scott D Solomon
- Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Bronislava Polonsky
- Cardiology Division, University of Rochester Medical Center, Rochester, New York
| | - Valentina Kutyifa
- Cardiology Division, University of Rochester Medical Center, Rochester, New York
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9
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Kumar V. Dyssynchrony: a risk marker for ventricular arrhythmias? J Nucl Cardiol 2018; 25:570-571. [PMID: 29110289 DOI: 10.1007/s12350-017-1103-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Accepted: 10/10/2017] [Indexed: 12/01/2022]
Affiliation(s)
- Vineet Kumar
- Division of Cardiovascular Diseases, University of Alabama at Birmingham, 930 Faculty Office Towers, 510 20th Street South, Birmingham, AL, 35294-0006, USA.
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10
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Gielgens R, Herold I, van Straten A, van Gelder B, Bracke F, Korsten H, Soliman Hamad M, Bouwman R. The Hemodynamic Effects of Different Pacing Modalities After Cardiopulmonary Bypass in Patients With Reduced Left Ventricular Function. J Cardiothorac Vasc Anesth 2018; 32:259-266. [DOI: 10.1053/j.jvca.2017.07.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Indexed: 11/11/2022]
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11
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Ezekowitz JA, O'Meara E, McDonald MA, Abrams H, Chan M, Ducharme A, Giannetti N, Grzeslo A, Hamilton PG, Heckman GA, Howlett JG, Koshman SL, Lepage S, McKelvie RS, Moe GW, Rajda M, Swiggum E, Virani SA, Zieroth S, Al-Hesayen A, Cohen-Solal A, D'Astous M, De S, Estrella-Holder E, Fremes S, Green L, Haddad H, Harkness K, Hernandez AF, Kouz S, LeBlanc MH, Masoudi FA, Ross HJ, Roussin A, Sussex B. 2017 Comprehensive Update of the Canadian Cardiovascular Society Guidelines for the Management of Heart Failure. Can J Cardiol 2017; 33:1342-1433. [PMID: 29111106 DOI: 10.1016/j.cjca.2017.08.022] [Citation(s) in RCA: 443] [Impact Index Per Article: 63.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Revised: 08/28/2017] [Accepted: 08/28/2017] [Indexed: 02/06/2023] Open
Abstract
Since the inception of the Canadian Cardiovascular Society heart failure (HF) guidelines in 2006, much has changed in the care for patients with HF. Over the past decade, the HF Guidelines Committee has published regular updates. However, because of the major changes that have occurred, the Guidelines Committee believes that a comprehensive reassessment of the HF management recommendations is presently needed, with a view to producing a full and complete set of updated guidelines. The primary and secondary Canadian Cardiovascular Society HF panel members as well as external experts have reviewed clinically relevant literature to provide guidance for the practicing clinician. The 2017 HF guidelines provide updated guidance on the diagnosis and management (self-care, pharmacologic, nonpharmacologic, device, and referral) that should aid in day-to-day decisions for caring for patients with HF. Among specific issues covered are risk scores, the differences in management for HF with preserved vs reduced ejection fraction, exercise and rehabilitation, implantable devices, revascularization, right ventricular dysfunction, anemia, and iron deficiency, cardiorenal syndrome, sleep apnea, cardiomyopathies, HF in pregnancy, cardio-oncology, and myocarditis. We devoted attention to strategies and treatments to prevent HF, to the organization of HF care, comorbidity management, as well as practical issues around the timing of referral and follow-up care. Recognition and treatment of advanced HF is another important aspect of this update, including how to select advanced therapies as well as end of life considerations. Finally, we acknowledge the remaining gaps in evidence that need to be filled by future research.
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Affiliation(s)
| | - Eileen O'Meara
- Institut de Cardiologie de Montréal, Université de Montréal, Montréal, Québec, Canada
| | | | | | - Michael Chan
- Edmonton Cardiology Consultants, Edmonton, Alberta, Canada
| | - Anique Ducharme
- Institut de Cardiologie de Montréal, Université de Montréal, Montréal, Québec, Canada
| | | | - Adam Grzeslo
- Hamilton Health Sciences, McMaster University, Hamilton, Ontario, Canada
| | | | | | | | | | - Serge Lepage
- Université de Sherbrooke, Sherbrooke, Québec, Canada
| | | | | | - Miroslaw Rajda
- QEII Health Sciences Centre, Halifax, Nova Scotia, Canada
| | | | - Sean A Virani
- University of British Columbia, Vancouver, British Columbia, Canada
| | | | | | | | | | - Sabe De
- London Health Sciences, Western University, London, Ontario, Canada
| | | | - Stephen Fremes
- Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - Lee Green
- University of Alberta, Edmonton, Alberta, Canada
| | - Haissam Haddad
- University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Karen Harkness
- Hamilton Health Sciences, McMaster University, Hamilton, Ontario, Canada
| | | | - Simon Kouz
- Centre Hospitalier Régional de Lanaudière, Joliette, Québec, Canada
| | | | | | | | - Andre Roussin
- Centre hospitalier de l'Université de Montréal, Montréal, Québec, Canada
| | - Bruce Sussex
- Memorial University, St John's, Newfoundland, Canada
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12
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Aggarwal N, Unnikrishnan KP, Biswas I, Karunakaran J, Suneel PR. Intraoperative assessment of transient and persistent regional left ventricular wall motion abnormalities in patients undergoing coronary revascularization surgery using real time three-dimensional transesophageal echocardiography: A prospective observational study. Echocardiography 2017; 34:1649-1659. [PMID: 28833528 DOI: 10.1111/echo.13661] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
OBJECTIVE To evaluate the feasibility of intraoperative real time three-dimensional echocardiography (RT3DE) for identification and quantification of transient and persistent regional wall motion abnormalities (RWMAs) in patients with ischemic cardiomyopathy undergoing coronary artery bypass grafting (CABG). DESIGN A prospective observational study SETTING: Single-center study in an academic tertiary care hospital PARTICIPANTS: A series of 42 patients undergoing elective CABG over a 2-year period were included. INTERVENTION After induction of anesthesia, a comprehensive transesophageal echocardiography (TEE) examination was performed to evaluate regional wall motion using two-dimensional wall motion score index (WMSI) and RT3D echocardiographic parameters at three specific time points during the operative phase. MEASUREMENTS AND MAIN RESULTS The 3D assessment of LV function was based on the quantification of change in LV chamber volume over time from each segment excursion. Patients were divided into two groups and subgroups based on TEE findings. There was significant mechanical dyssynchrony in patients with RWMAs (WMSI > 1; systolic dyssynchrony index [SDI] = 7.0 ± 3.66) as compared to the patients having normal wall motion (WMSI = 1; SDI = 2.0 ± 0.95; P = .001). Patients with contractile dysfunction were found to have low values of segmental excursion and high values of negative excursion on parametric imaging. Persistent RWMAs due to hibernating myocardium showed significant resolution of mechanical dyssynchrony after revascularization. Parametric imaging could detect transient RWMAs due to stunning and graft dysfunction. Early activating segments (EAS) on "timing bull's-eye" may represent hypercontractile segments and may influence inotrope administration. CONCLUSION The RT3DE is a valuable modality for precise quantification of regional wall motion during revascularization procedure.
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Affiliation(s)
- Neelam Aggarwal
- Department of Cardiothoracic Vascular Anesthesia, Sree Chitra Tirunal Institute for Medical Sciences & Technology, Trivandrum, India
| | - Koniparambil P Unnikrishnan
- Department of Cardiothoracic Vascular Anesthesia, Sree Chitra Tirunal Institute for Medical Sciences & Technology, Trivandrum, India
| | - Indranil Biswas
- Department of Cardiothoracic Vascular Anesthesia, Sree Chitra Tirunal Institute for Medical Sciences & Technology, Trivandrum, India
| | - Jayakumar Karunakaran
- Department of Cardiothoracic Vascular Surgery, Sree Chitra Tirunal Institute for Medical Sciences & Technology, Trivandrum, India
| | - Puthuvasseri R Suneel
- Department of Cardiothoracic Vascular Anesthesia, Sree Chitra Tirunal Institute for Medical Sciences & Technology, Trivandrum, India
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13
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Aggarwal N, Saravana Babu MS. Three-dimensional parametric imaging for intraoperative quantification of regional left ventricular function in ischemic cardiomyopathy. Ann Card Anaesth 2017; 20:272-273. [PMID: 28393799 PMCID: PMC5408544 DOI: 10.4103/aca.aca_28_17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Affiliation(s)
- Neelam Aggarwal
- Department of Cardiac Anesthesia, Venkateshwar Hospital, New Delhi, India
| | - M S Saravana Babu
- Department of Cardiac Anesthesia, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, Kerala, India
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14
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Zafrir N, Bental T, Strasberg B, Solodky A, Mats I, Gutstein A, Kornowski R. Yield of left ventricular dyssynchrony by gated SPECT MPI in patients with heart failure prior to implantable cardioverter-defibrillator or cardiac resynchronization therapy with a defibrillator: Characteristics and prediction of cardiac outcome. J Nucl Cardiol 2017; 24:122-129. [PMID: 26563336 DOI: 10.1007/s12350-015-0310-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Accepted: 10/01/2015] [Indexed: 01/14/2023]
Abstract
BACKGROUND Mechanical left ventricular dyssynchrony (MLVD) might contribute in the therapeutic decision-making in patients with heart failure (HF) prior to cardiac resynchronization therapy (CRT). Our aim was to assess MLVD in patients with HF prior to implantable cardioverter-defibrillator (ICD) compared to patients with CRT-D. METHODS In a prospective study, patients with LVEF ≤ 35% who were scheduled for ICD or CRT-D, underwent gated SPECT myocardial perfusion imaging with technetium 99m sestamibi within 3 months prior procedure. MLVD was measured by phase analysis. RESULTS The study cohort consisted of 143 patients, 71 with ICD and 72 with CRT-D. Age 68.3 ± 11 and LVEF 24 ± 6%. Phase standard deviation (SD) was 62.5 ± 18 and 59.7 ± 20 (P = NS), respectively. During follow-up of 23.7 ± 12.1 months, there were 10 vs 14 cardiac death in ICD and CRT-D, respectively (P = NS), hospitalization for HF, in 34 vs 53 (P < .001). In multivariate analysis, Phase SD was the independent predictor for cardiac death [HR 2.66 (95% CI 1.046-6.768), P = .04]. Kaplan-Meier curves of phase SD of 60° significantly identified ICD patients with and without cardiac deaths and hospitalization for HF exacerbation. CONCLUSIONS MLVD by phase SD can identify patients with cardiac events and predict cardiac death in patients treated with ICD.
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Affiliation(s)
- Nili Zafrir
- Cardiology Department, Rabin Medical Center, Beilinson Campus, Petah Tiqva, Israel.
| | - Tamir Bental
- Cardiology Department, Rabin Medical Center, Beilinson Campus, Petah Tiqva, Israel
| | - Boris Strasberg
- Cardiology Department, Rabin Medical Center, Beilinson Campus, Petah Tiqva, Israel
| | - Alejandro Solodky
- Cardiology Department, Rabin Medical Center, Beilinson Campus, Petah Tiqva, Israel
| | - Israel Mats
- Cardiology Department, Rabin Medical Center, Beilinson Campus, Petah Tiqva, Israel
| | - Ariel Gutstein
- Cardiology Department, Rabin Medical Center, Beilinson Campus, Petah Tiqva, Israel
| | - Ran Kornowski
- Cardiology Department, Rabin Medical Center, Beilinson Campus, Petah Tiqva, Israel
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15
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Yoshinaga K. Predicting cardiac events using ventricular dyssynchrony in patients who received implantable cardioverter defibrillators: Are more treatment options required? J Nucl Cardiol 2017; 24:130-133. [PMID: 26601672 DOI: 10.1007/s12350-015-0326-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Accepted: 11/03/2015] [Indexed: 10/22/2022]
Affiliation(s)
- Keiichiro Yoshinaga
- Molecular Imaging Research Center, National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage-Ku, Chiba, 263-8555, Japan.
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16
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Lee JH. Left Ventricular Diastolic Dyssynchrony in Post-Myocardial Infarction Patients: Does It Predict Future Left Ventricular Remodeling? J Cardiovasc Ultrasound 2016; 24:193-194. [PMID: 27721946 PMCID: PMC5050304 DOI: 10.4250/jcu.2016.24.3.193] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Revised: 09/05/2016] [Accepted: 09/06/2016] [Indexed: 11/22/2022] Open
Affiliation(s)
- Ju-Hee Lee
- Division of Cardiology, Department of Internal Medicine, Chungbuk National University Hospital, Cheongju, Korea
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17
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Mantegazza V, Badagliacca R, Nodari S, Parati G, Lombardi C, Di Somma S, Carluccio E, Dini FL, Correale M, Magrì D, Agostoni P. Management of heart failure in the new era. J Cardiovasc Med (Hagerstown) 2016; 17:569-80. [DOI: 10.2459/jcm.0000000000000152] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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18
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Phase analysis of gated myocardial perfusion single-photon emission computed tomography after coronary artery bypass graft surgery: reflection of late reverse remodeling in patients with patent grafts after coronary artery bypass graft surgery. Nucl Med Commun 2016; 37:1139-47. [PMID: 27341412 DOI: 10.1097/mnm.0000000000000565] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE Phase analysis using gated myocardial perfusion single-photon emission computed tomography (GMPS) is a tool used to assess left ventricular (LV) dyssynchrony. We attempted to investigate the role of LV dyssynchrony assessed by GMPS using phase analysis for the late LV function after coronary artery bypass graft surgery (CABG) in patients with patent grafts. METHODS A total of 45 patients who received off-pump CABG with patent graft 1 year after CABG and preserved perfusion reserve were enrolled retrospectively. All patients underwent GMPS before and 3 months and 1 year after CABG. Using the Emory Cardiac Toolbox, both phase histogram bandwidth (PBW) and phase SD derived by phase analysis were used for the analysis, in addition to the conventional perfusion parameters. For the evaluation of LV function, transthoracic echocardiography was also performed. RESULTS All of the patients showed perfusion improvement (paired t-test, P<0.05) after CABG. Nonetheless, 30 of 45 patients showed LV dyssynchrony 3 months after CABG. One year after CABG, however, 25 out of 45 patients showed reverse remodeling. Among those patients with reverse remodeling, 19 patients had shown LV 3 months after CABG. Using stepwise logistic regression with forward selection, PBW 3 months after CABG could predict reverse remodeling 1 year after CABG (odds ratio 1.03, P<0.05). Using receiver operating characteristic analysis, PBW 3 months after CABG had the largest area under the curve to detect reverse remodeling 1 year after CABG with a cut-off value of 82 (sensitivity 0.95, specificity 0.56, P<0.001). CONCLUSION Postoperative LV dyssynchrony assessed by GMPS using phase analysis may reflect late reverse remodeling and potential of further functional improvement in patients with patent grafts and preserved perfusion reserve after CABG.
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19
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Jha AK, Malik V, Gharde P, Chauhan S, Kiran U, Hote MP. Echocardiographic Predictors of Immediate Postoperative Outcomes in Patients With Severe Left Ventricular Systolic Dysfunction Undergoing On-Pump Coronary Artery Bypass Grafting. J Cardiothorac Vasc Anesth 2016; 31:184-190. [PMID: 27546830 DOI: 10.1053/j.jvca.2016.04.025] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Indexed: 11/11/2022]
Abstract
OBJECTIVES The postoperative course following on-pump coronary artery bypass grafting (CABG) in patients with severe left ventricular (LV) systolic dysfunction is often unpredictable. Therefore, the aim of this study was to identify predictors of poor postoperative outcome in this subset of patients. DESIGN Prospective observational study SETTING: Single university hospital PARTICIPANTS: Forty patients with severe LV systolic dysfunction undergoing isolated on-pump CABG INTERVENTIONS: None MEASUREMENTS AND MAIN RESULTS: Comprehensive transesophageal echocardiographic examination was performed to obtain the indices of systolic and diastolic LV function after induction of anesthesia. A poor postoperative outcome was defined as patient death or vasoactive inotropic score≥20 for at least 6 hours and/or requiring intra-aortic balloon counterpulsation and/or mechanical ventilation for≥24 hours. Poor postoperative outcome was observed in 40% (16/40) of patients. Patients with poor postoperative outcomes had a significantly higher systolic dyssynchrony index, septal-lateral delay with a significantly lower global longitudinal strain and isovolumic acceleration, end-diastolic volume, end-systolic volume, and lateral and medial mitral annulus systolic velocity. In a binary logistic regression model, global longitudinal strain (odds ratio, 1.5, confidence interval [CI] 95%, 1.19-1.88, p = 0.001), septal-lateral delay (odds ratio, 1.02, 95% CI, 1.01-1.03; p = 0.001) and systolic dyssychrony index (odds ratio, 1.3, 95% CI, 1.13-1.48; p = 0.000) were found to be predictors of poor postoperative outcome. CONCLUSION Global longitudinal strain, systolic dyssynchrony index, and septal-lateral delay were reliable and accurate predictors of adverse outcomes in patients with severe LV systolic dysfunction undergoing on-pump CABG.
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Affiliation(s)
- Ajay Kumar Jha
- All India Institute of Medical Sciences, New Delhi, India.
| | - Vishwas Malik
- All India Institute of Medical Sciences, New Delhi, India
| | - Parag Gharde
- All India Institute of Medical Sciences, New Delhi, India
| | | | - Usha Kiran
- All India Institute of Medical Sciences, New Delhi, India
| | - Milind P Hote
- All India Institute of Medical Sciences, New Delhi, India
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20
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Linker NJ, Martin RIR. Cardiac resynchronization combined with coronary artery bypass grafting. Eur J Cardiothorac Surg 2016; 50:42-3. [PMID: 26984990 DOI: 10.1093/ejcts/ezw079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Nicholas J Linker
- Department of Cardiology, James Cook University Hospital, Middlesbrough, UK
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21
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Lin LY, Wu CK, Juang JMJ, Wang YC, Su MYM, Lai LP, Hwang JJ, Chiang FT, Tseng WYI, Lin JL. Myocardial Regional Interstitial Fibrosis is Associated With Left Intra-Ventricular Dyssynchrony in Patients With Heart Failure: A Cardiovascular Magnetic Resonance Study. Sci Rep 2016; 6:20711. [PMID: 26846306 PMCID: PMC4742892 DOI: 10.1038/srep20711] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2015] [Accepted: 01/11/2016] [Indexed: 01/04/2023] Open
Abstract
Left ventricular (LV) dyssynchrony is associated with poor prognosis in patients with heart failure (HF). The mechanisms leading to LV dyssynchrony are not fully elucidated. This study evaluates whether myocardium regional variation in interstitial fibrosis is associated with LV dyssynchrony. Forty-two patients with systolic heart failure (SHF), 76 patients with heart failure with preserved ejection fraction (HFpEF) and 20 patients without HF received cardiovascular magnetic resonance imaging (MRI) study. LV was divided into 18 segments by short-axis view. In each segment, regional extracellular volume fraction (ECV) and the time taken to reach minimum regional volume (Tmv) were derived. Intra-LV dyssynchrony were represented by maximum difference (Dysyn_max) and standard deviation (Dysyn_sd) of all Tmv. The results showed that among the covariates, only age (1.87, 95% CI: 0.61-3.13, p = 0.004) and ECV (3.77, 95% CI: 2.72-4.81, p < 0.001) were positively associated with Tmv. The results remained robust in certain subgroups. In conclusion, we demonstrated that LV myocardium regional variation in interstitial fibrosis is closely related to LV intra-ventricular dyssynchrony irrespective of the LV global function. These data might help explain the pathophysiology of LV dyssynchrony and it's underlying mechanisms leading to poor prognosis.
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Affiliation(s)
- Lian-Yu Lin
- Division of Cardiology, Department of Internal Medicine, National Taiwan University College of Medicine and Hospital, Taipei, Taiwan
| | - Cho-Kai Wu
- Division of Cardiology, Department of Internal Medicine, National Taiwan University College of Medicine and Hospital, Taipei, Taiwan
| | - Jyh-Ming Jimmy Juang
- Division of Cardiology, Department of Internal Medicine, National Taiwan University College of Medicine and Hospital, Taipei, Taiwan
| | - Yi-Chih Wang
- Division of Cardiology, Department of Internal Medicine, National Taiwan University College of Medicine and Hospital, Taipei, Taiwan
| | - Mao-Yuan Marine Su
- Department of Medical Imaging, National Taiwan University Hospital, Taipei, Taiwan
| | - Ling-Ping Lai
- Division of Cardiology, Department of Internal Medicine, National Taiwan University College of Medicine and Hospital, Taipei, Taiwan
| | - Juey-Jen Hwang
- Division of Cardiology, Department of Internal Medicine, National Taiwan University College of Medicine and Hospital, Taipei, Taiwan
| | - Fu-Tien Chiang
- Division of Cardiology, Department of Internal Medicine, National Taiwan University College of Medicine and Hospital, Taipei, Taiwan
| | - Wen-Yih Issac Tseng
- Department of Medical Imaging, National Taiwan University Hospital, Taipei, Taiwan.,Center for Optoelectronic Medicine, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Jiunn-Lee Lin
- Division of Cardiology, Department of Internal Medicine, National Taiwan University College of Medicine and Hospital, Taipei, Taiwan
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Stiver C, Nadorlik H, Nicholson L, Janevski I, Belfrage K, Wheller J, Cua CL. Diastolic Dyssynchrony Differences in Patients with Single Right Ventricles vs. Control Patients. CONGENIT HEART DIS 2014; 10:326-32. [DOI: 10.1111/chd.12234] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/02/2014] [Indexed: 11/30/2022]
Affiliation(s)
- Corey Stiver
- The Heart Center; Nationwide Children's Hospital; Columbus Ohio USA
| | - Holly Nadorlik
- The Heart Center; Nationwide Children's Hospital; Columbus Ohio USA
| | - Lisa Nicholson
- The Heart Center; Nationwide Children's Hospital; Columbus Ohio USA
| | - Ilija Janevski
- The Heart Center; Nationwide Children's Hospital; Columbus Ohio USA
| | | | - John Wheller
- The Heart Center; Nationwide Children's Hospital; Columbus Ohio USA
| | - Clifford L. Cua
- The Heart Center; Nationwide Children's Hospital; Columbus Ohio USA
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23
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Huang XS, Gu CX, Yang JF, Wei H, Li JX, Yu Y. A pilot study of systolic dyssynchrony index by real-time three-dimensional echocardiography predicting clinical outcomes to surgical ventricular reconstruction in patients with left ventricular aneurysm. Interact Cardiovasc Thorac Surg 2014; 19:938-45. [PMID: 25183742 DOI: 10.1093/icvts/ivu243] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVES The aim of the study was to detect whether the systolic dyssynchrony index (SDI) assessed by real-time 3D echocardiography (RT3DE) could predict clinical outcomes of patients with ventricular aneurysm in response to surgical ventricular reconstruction (SVR). METHODS In total, 120 individuals underwent RT3DE, including 30 healthy volunteers and 90 patients with ventricular aneurysm. All patients underwent clinical and echocardiographic assessments at baseline and at 12 months after SVR. The SDI was defined as the SD of time to minimum systolic volume of the 16 left ventricular (LV) segments, expressed in percent RR duration. SVR responder was defined as a >15% decrease in LV end-systolic volume, reduction in NYHA functional class or 20% relative increase in the LV ejection fraction (LVEF). RESULTS The SDI was significantly higher in patients with aneurysm, at 14.3% compared with 2.0% in healthy volunteers (P <0.047). The SDI was negatively correlated with the LVEF. After SVR, 86 patients were responders. In this patient subgroup, the SDI exhibited an immediate significant decrease (to 7.7%; P <0.034) and a progressive decrease during 12 months of follow-up (to 4.9%; P <0.044). The SDI can discriminate SVR responders. Receiver-operating characteristic curve analysis yielded cut-off values of SDI 14.3% best associated with SVR response; area under the curve was 0.79 with reduction in NYHA class, 0.86 with increase in EF and 0.66 with decrease in the end-systolic volume. CONCLUSIONS RT3DE can be used to assess LV mechanical dyssynchrony in patients with aneurysm. SVR produces a mechanical intraventricular resynchronization and SDI can predict improvement following SVR.
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Affiliation(s)
- Xin-Sheng Huang
- Department of Cardiac Surgery, Beijing An Zhen Hospital, Capital Medical University, Beijing, China
| | - Cheng-Xiong Gu
- Department of Cardiac Surgery, Beijing An Zhen Hospital, Capital Medical University, Beijing, China
| | - Jun-Feng Yang
- Department of Cardiac Surgery, Beijing An Zhen Hospital, Capital Medical University, Beijing, China
| | - Hua Wei
- Department of Cardiac Surgery, Beijing An Zhen Hospital, Capital Medical University, Beijing, China
| | - Jing-Xing Li
- Department of Cardiac Surgery, Beijing An Zhen Hospital, Capital Medical University, Beijing, China
| | - Yang Yu
- Department of Cardiac Surgery, Beijing An Zhen Hospital, Capital Medical University, Beijing, China
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Jin Y, Wang H, Wang Z, Jiang H, Tao D, Wu H. The Evaluation of Preoperative Right Ventricular Diastolic Dysfunction on Coronary Artery Disease Patients with Left Ventricular Dysfunction. Echocardiography 2014; 31:1259-64. [PMID: 24975638 DOI: 10.1111/echo.12652] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Affiliation(s)
- Yan Jin
- Department of Cardiac Surgery; General Hospital of Shenyang Military Area Command; Shenyang City China
| | - Huishan Wang
- Department of Cardiac Surgery; General Hospital of Shenyang Military Area Command; Shenyang City China
| | - Zengwei Wang
- Department of Cardiac Surgery; General Hospital of Shenyang Military Area Command; Shenyang City China
| | - Hui Jiang
- Department of Cardiac Surgery; General Hospital of Shenyang Military Area Command; Shenyang City China
| | - Dengshun Tao
- Department of Cardiac Surgery; General Hospital of Shenyang Military Area Command; Shenyang City China
| | - Haibo Wu
- Department of Cardiac Surgery; General Hospital of Shenyang Military Area Command; Shenyang City China
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Heart failure in patients with chronic kidney disease: a systematic integrative review. BIOMED RESEARCH INTERNATIONAL 2014; 2014:937398. [PMID: 24959595 PMCID: PMC4052068 DOI: 10.1155/2014/937398] [Citation(s) in RCA: 93] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Revised: 04/21/2014] [Accepted: 04/22/2014] [Indexed: 02/08/2023]
Abstract
Introduction. Heart failure (HF) is highly prevalent in patients with chronic kidney disease (CKD) and end-stage renal disease (ESRD) and is strongly associated with mortality in these patients. However, the treatment of HF in this population is largely unclear. Study Design. We conducted a systematic integrative review of the literature to assess the current evidence of HF treatment in CKD patients, searching electronic databases in April 2014. Synthesis used narrative methods. Setting and Population. We focused on adults with a primary diagnosis of CKD and HF. Selection Criteria for Studies. We included studies of any design, quantitative or qualitative. Interventions. HF treatment was defined as any formal means taken to improve the symptoms of HF and/or the heart structure and function abnormalities. Outcomes. Measures of all kinds were considered of interest. Results. Of 1,439 results returned by database searches, 79 articles met inclusion criteria. A further 23 relevant articles were identified by hand searching. Conclusions. Control of fluid overload, the use of beta-blockers and angiotensin-converting enzyme inhibitors or angiotensin receptor blockers, and optimization of dialysis appear to be the most important methods to treat HF in CKD and ESRD patients. Aldosterone antagonists and digitalis glycosides may additionally be considered; however, their use is associated with significant risks. The role of anemia correction, control of CKD-mineral and bone disorder, and cardiac resynchronization therapy are also discussed.
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Left ventricular systolic function and systolic asynchrony in patients with septic shock and normal left ventricular ejection fraction. Shock 2014; 40:175-81. [PMID: 23807249 DOI: 10.1097/shk.0b013e31829dcfef] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Few studies were performed to investigate the association between tissue Doppler imaging parameters about left ventricular (LV) systolic function and LV systolic asynchrony and prognosis in patients with septic shock and normal LV ejection fraction (LVEF). This prospective study was performed from January 2010 to April 2012 in a medical intensive care unit. Fifty-one patients with septic shock and LVEF greater than or equal to 50% were analyzed. The clinical variables and transthoracic echocardiography data were obtained on admission. The mean value of the peak myocardial systolic velocity (Sm-mean) was measured in the four LV basal segments. Tissue Doppler imaging-based parameter (Ts-SD) was used to evaluate LV intraventricular asynchrony. The 28-day all-cause mortality was 43.1%. The nonsurvivors exhibited higher baseline heart rate and Sm-mean and lower mean arterial blood pressure and Ts-SD. A cutoff value of Sm-mean greater than or equal to 6.2 cm/s in identifying 28-day mortality was determined by the receiver operating characteristic curve analysis. The patients with Sm-mean greater than or equal to 6.2 cm/s or Ts-SD less than 33 ms had higher 28-day mortality. In the Cox multivariate analysis, Sm-mean, Ts-SD, and mean arterial blood pressure emerged as independent predictors for 28-day mortality. We concluded that LV systolic dysfunction and systolic asynchrony assessed by tissue Doppler imaging were associated with improved 28-day all-cause mortality in patients with septic shock and normal LVEF.
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The ‘Echo Heart Failure Score’: an echocardiographic risk prediction score of mortality in systolic heart failure. Eur J Heart Fail 2014; 15:868-76. [DOI: 10.1093/eurjhf/hft038] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Stiver C, Gokhale J, Husain N, Nicholson L, Cordier J, Van Lente L, Holzer RJ, Cua CL. Catheterization diastolic pressures correlate with diastolic dyssynchrony in patients with single right ventricles. Echocardiography 2013; 31:370-4. [PMID: 24298988 DOI: 10.1111/echo.12373] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
INTRODUCTION Diastolic dyssynchrony has correlated with pulmonary capillary wedge pressures in patients with normal cardiac anatomy. No data exist in single right ventricle (sRV) patients. Goal of this study was to determine if diastolic dyssynchrony in sRV patients correlates with ventricular end-diastolic pressures (VEDP). METHODS Tissue Doppler imaging (TDI) and strain rate (SR) analysis of sRV patients undergoing catheterization were performed. Time interval from onset of QRS to peak TDI e'-wave was obtained. Differences in intervals were calculated: QRS (RV) - QRS (IVS) and QRS (RV) - QRS (LV). Time interval from onset of QRS to peak strain rate early diastolic wave (SRe) was obtained for the 6 segment model sRV. Standard deviation of the 6 SRe time intervals was calculated. Correlation of VEDP with timing intervals was analyzed. RESULTS Forty sRV patients were evaluated. Age was 2.8 ± 3.5 years. Catheterization VEDP of the sRV was 9.3 ± 3.9 mmHg (median 8 mmHg range 4-24 mmHg). QRS (RV) - QRS (IVS) was 22.3 ± 18.1 msec and QRS (RV) - QRS (LV) was 23.7 ± 19.0 msec. SRe standard deviation of the sRV was 61.6 ± 23.9 msec. There was no significant correlation with VEDP and QRS (RV) - QRS (IVS) (r = 0.1, P = NS) or with QRS (RV) - QRS (LV) (r = 0.2, P = NS). There was a significant correlation of VEDP with the SRe standard deviation value (r = 0.4, P < 0.05). CONCLUSION Diastolic dyssynchrony correlated with VEDP in patients with sRV physiology. Future studies are needed to determine the significance of these findings.
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Affiliation(s)
- Corey Stiver
- Heart Center, Nationwide Children's Hospital, Columbus, Ohio
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Moe GW, Ezekowitz JA, O'Meara E, Howlett JG, Fremes SE, Al-Hesayen A, Heckman GA, Ducharme A, Estrella-Holder E, Grzeslo A, Harkness K, Lepage S, McDonald M, McKelvie RS, Nigam A, Rajda M, Rao V, Swiggum E, Virani S, Van Le V, Zieroth S, Arnold JMO, Ashton T, D'Astous M, Dorian P, Giannetti N, Haddad H, Isaac DL, Kouz S, Leblanc MH, Liu P, Ross HJ, Sussex B, White M. The 2013 Canadian Cardiovascular Society Heart Failure Management Guidelines Update: focus on rehabilitation and exercise and surgical coronary revascularization. Can J Cardiol 2013; 30:249-63. [PMID: 24480445 DOI: 10.1016/j.cjca.2013.10.010] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2013] [Revised: 10/09/2013] [Accepted: 10/09/2013] [Indexed: 12/25/2022] Open
Abstract
The 2013 Canadian Cardiovascular Society Heart Failure Management Guidelines Update provides focused discussions on the management recommendations on 2 topics: (1) exercise and rehabilitation; and (2) surgical coronary revascularization in patients with heart failure. First, all patients with stable New York Heart Association class I-III symptoms should be considered for enrollment in a tailored exercise training program, to improve exercise tolerance and quality of life. Second, selected patients with suitable coronary anatomy should be considered for bypass graft surgery. As in previous updates, the topics were chosen in response to stakeholder feedback. The 2013 Update also includes recommendations, values and preferences, and practical tips to assist the clinicians and health care workers manage their patients with heart failure.
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Affiliation(s)
- Gordon W Moe
- St Michael's Hospital, University of Toronto, Toronto, Ontario, Canada.
| | | | - Eileen O'Meara
- Institut de Cardiologie de Montréal, Montreal, Québec, Canada
| | | | - Steve E Fremes
- Sunnybrook Health Science Centre, Toronto, Ontario, Canada
| | - Abdul Al-Hesayen
- St Michael's Hospital, University of Toronto, Toronto, Ontario, Canada
| | | | - Anique Ducharme
- Institut de Cardiologie de Montréal, Montreal, Québec, Canada
| | | | - Adam Grzeslo
- Joseph Brant Memorial Hospital, Burlington, Ontario, Canada; Hamilton Health Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Karen Harkness
- Hamilton Health Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Serge Lepage
- Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, Quebec, Canada
| | - Michael McDonald
- University Health Network, University of Toronto, Toronto, Ontario, Canada
| | - Robert S McKelvie
- Hamilton Health Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Anil Nigam
- Institut de Cardiologie de Montréal, Montreal, Québec, Canada
| | - Miroslaw Rajda
- QE II Health Sciences Centre, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Vivek Rao
- University Health Network, University of Toronto, Toronto, Ontario, Canada
| | | | - Sean Virani
- University of British Columbia, Vancouver, British Columbia, Canada
| | - Vy Van Le
- Centre Hospitalier Universitaire de l'Université de Montréal, Québec, Canada
| | - Shelley Zieroth
- Cardiac Sciences Program, St Boniface General Hospital, Winnipeg, Manitoba, Canada
| | | | | | | | - Paul Dorian
- St Michael's Hospital, University of Toronto, Toronto, Ontario, Canada
| | | | | | | | - Simon Kouz
- Centre Hospitalier Régional de Lanaudière, Joliette, and Université Laval, Québec, Canada
| | | | - Peter Liu
- Ottawa Heart Institute, Ottawa, Ontario, Canada
| | - Heather J Ross
- University Health Network, University of Toronto, Toronto, Ontario, Canada
| | - Bruce Sussex
- Health Sciences Centre, St John's, Newfoundland, Canada
| | - Michel White
- Institut de Cardiologie de Montréal, Montreal, Québec, Canada
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Yu Y, Sun K, Xue H, Chen S, Yang J. Usefulness of real-time 3-dimensional echocardiography to identify and quantify left ventricular dyssynchrony in patients with Kawasaki disease. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2013; 32:1013-1021. [PMID: 23716523 DOI: 10.7863/ultra.32.6.1013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
OBJECTIVES The role of left ventricular (LV) dyssynchrony in Kawasaki disease is unknown. This study sought to establish values for real-time 3-dimensional (3D) echocardiographically derived LV dyssynchrony parameters and identify and quantify LV dyssynchrony in patients with Kawasaki disease. METHODS Forty patients hospitalized for Kawasaki disease were analyzed retrospectively, and 40 sex- and age-matched healthy control volunteers were also enrolled. The systolic dyssynchrony index (percentage of the cardiac cycle) from 16 and 12 LV segments on real-time 3D echocardiography was analyzed to calculate LV dyssynchrony (defined as the standard deviation of the time to reach the minimum systolic volume for 16 LV segments) according to a 17-segment model. We analyzed the 3D LV ejection fraction (LVEF), end-diastolic volume, and end-systolic volume in the patients with Kawasaki disease compared to the controls. RESULTS The 16-segment systolic dyssynchrony index ± SD was significantly higher in the patients with Kawasaki disease: 2.73% ± 0.96% compared to 2.01% ± 0.85% in the controls (P < .05). The 12-segment systolic dyssynchrony index in the patients with Kawasaki disease was 2.65% ± 0.93% compared to 1.98% ± 0.81% in the controls (P< .05). Patients with Kawasaki disease and an LVEF of less than 50% had a significantly higher systolic dyssynchrony index compared to patients with an LVEF of 50% or greater (2.89% ± 0.79% versus 2.26% ± 0.73%; P < .05). The LVEF measured by echocardiography was decreased in the patients with Kawasaki disease, and global systolic function was impaired. The LVEF measured by a biplane method was sufficiently related to the LVEF measured by echocardiography. CONCLUSIONS Real-time 3D echocardiography is a noninvasive and feasible method for identifying and evaluating LV dyssynchrony in children with Kawasaki disease. Left ventricular dyssynchrony is significantly impaired and related to LV systolic function in patients with Kawasaki disease.
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Affiliation(s)
- Yi Yu
- Department of Ultrasound, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
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Kutyifa V, Pouleur AC, Knappe D, Al-Ahmad A, Gibinski M, Wang PJ, McNitt S, Merkely B, Goldenberg I, Solomon SD, Moss AJ, Zareba W. Dyssynchrony and the Risk of Ventricular Arrhythmias. JACC Cardiovasc Imaging 2013; 6:432-44. [DOI: 10.1016/j.jcmg.2012.12.008] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2012] [Revised: 12/14/2012] [Accepted: 12/20/2012] [Indexed: 10/27/2022]
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van Garsse L, Gelsomino S, Cheriex E, Lucà F, Rao CM, Parise O, Gensini GF, Maessen J. Tethering Symmetry Reflects Advanced Left Ventricular Mechanical Dyssynchrony in Patients With Ischemic Mitral Regurgitation Undergoing Restrictive Mitral Valve Repair. Ann Thorac Surg 2012; 94:1418-28. [DOI: 10.1016/j.athoracsur.2012.05.099] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2012] [Revised: 05/22/2012] [Accepted: 05/25/2012] [Indexed: 11/30/2022]
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van Garsse L, Gelsomino S, Lucà F, Parise O, Lorusso R, Cheriex E, Caciolli S, Vizzardi E, Rao CM, Carella R, Gensini GF, Maessen J. Left ventricular dyssynchrony is associated with recurrence of ischemic mitral regurgitation after restrictive annuloplasty. Int J Cardiol 2012; 168:176-84. [PMID: 23044432 DOI: 10.1016/j.ijcard.2012.09.098] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2012] [Revised: 06/22/2012] [Accepted: 09/15/2012] [Indexed: 10/27/2022]
Abstract
BACKGROUND In our study, we investigated the impact of papillary muscle systolic dyssynchrony (DYS-PAP) obtained by 2D speckle-tracking echocardiography (2D-STE) in the prediction of recurrent ischemic mitral regurgitation (MR) after restrictive annuloplasty. METHODS The study population consisted of 524 consecutive patients who survived coronary artery bypass grafting (CABG) and restrictive annuloplasty, performed between 2001 and 2010 at 3 different Institutions and who met inclusion criteria. The assessment of DYS-PAP was performed preoperatively and at follow-up (median 45.3 months [IQR 26-67]) by 2D-STE in the apical four-chamber view for the anterolateral papillary muscle (ALPM) and apical long-axis view for the posteromedial papillary muscle (PMPM). RESULTS Recurrence of MR (≥ 2+ in patients with no/trivial MR at discharge) was found in 112 patients (21.3%) at follow-up. Compared to patients without recurrence of MR, these patients had higher DYS-PAP values at baseline (60.6 ± 4.4 ms vs. 47.2 ± 2.9 ms, p<0.001) which significantly worsened at follow-up (74.4 ± 5.2 ms, p=0.002 vs. baseline). In contrast, in patients with no MR recurrence, DYS-PAP was significantly reduced (25.3 ± 4.4 ms, p=0.002 vs. baseline). At logistic regression analysis DYS-PAP (odds ratio [OR]: 4.8, 95% Confidence Interval [CI]: 3.4-8.2, p<0.001), was the strongest predictor of recurrent MR with a cutoff ≥ 58 ms (95%CI 51-66 ms). The model showed an area under the Receiver Operating Characteristic (ROC) curve of 0.97 (CI 0.94-0.99 [optimism-corrected 0.94; CI 0.89-0.95]) with 98% sensitivity (CI 96-100% [optimism-corrected 95%; CI 91-96%]) and 90% specificity (CI 85-94% [optimism-corrected 87%; CI 82-90%]). CONCLUSIONS DYS-PAP represents a reliable tool to identify patients with ischemic MR who can benefit from restrictive annuloplasty.
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Affiliation(s)
- Leen van Garsse
- Department of Cardiothoracic Surgery, University Hospital, Maastricht, The Netherlands
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Abstract
Mechanical dyssynchrony is a common phenomenon in patients with congestive heart failure, which usually identified by noninvasive cardiac imaging tools such as echocardiography. It demonstrates electromechanical delay in some regions of the failing heart which in turn contributes to further impairment of cardiac function. The diagnostic, therapeutic and prognostic values of mechanical dyssynchrony have been reported in a number of studies. Therefore, this review describes briefly the methods of measurement, but more importantly, explains the clinical implication of its assessment in heart failure related aspects including cardiac resynchronization therapy, functional mitral regurgitation, diastolic heart failure and mortality.
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Affiliation(s)
- Qing Zhang
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu, China. ; Division of Cardiology, Department of Medicine and Therapeutics, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China
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van Garsse L, Gelsomino S, Parise O, Lucà F, Cheriex E, Lorusso R, Vizzardi E, Rao CM, Gensini GF, Maessen J. Systolic Papillary Muscle Dyssynchrony Predicts Recurrence of Mitral Regurgitation in Patients with Ischemic Cardiomyopathy (ICM) Undergoing Mitral Valve Repair. Echocardiography 2012; 29:1191-200. [DOI: 10.1111/j.1540-8175.2012.01789.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Affiliation(s)
- Leen van Garsse
- Department of Cardiothoracic Surgery; University Hospital; Maastricht; The Netherlands
| | | | - Orlando Parise
- Department of Heart and Vessels; Careggi Hospital; Florence; Italy
| | - Fabiana Lucà
- Department of Heart and Vessels; Careggi Hospital; Florence; Italy
| | - Emile Cheriex
- Department of Cardiothoracic Surgery; University Hospital; Maastricht; The Netherlands
| | | | | | | | | | - Jos Maessen
- Department of Cardiothoracic Surgery; University Hospital; Maastricht; The Netherlands
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García-Bengochea JB, Fernández ÁL. Resincronización ventricular combinada asociada con la cirugía convencional de la miocardiopatía dilatada. CIRUGIA CARDIOVASCULAR 2012. [DOI: 10.1016/s1134-0096(12)70028-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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Kim HK, Chang SA, Ahn HS, Shin DH, Kim JH, Lee SP, Kim YJ, Cho GY, Sohn DW, Oh BH, Park YB. Load independence of two-dimensional speckle-tracking-derived left ventricular twist and apex-to-base rotation delay in nonischemic dilated cardiomyopathy: implications for left ventricular dyssynchrony assessment. J Am Soc Echocardiogr 2012; 25:652-60. [PMID: 22465871 DOI: 10.1016/j.echo.2012.03.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2011] [Indexed: 01/13/2023]
Abstract
BACKGROUND Left ventricular (LV) twist mechanics are a promising, sensitive tool for assessing pathophysiologic changes in patients with systolic heart failure. Although LV twist is known to be load dependent in healthy volunteers, this has not been examined in patients with "long-standing" dilated cardiomyopathy (DCM). The aim of this study was to determine whether LV twist remains load dependent in the setting of long-standing, nonischemic DCM. METHODS Thirty-four patients with DCM with baseline LV ejection fractions (LVEFs) < 40% and 13 subjects with preserved LVEFs (≥50%) were enrolled. After baseline measurements, pneumatic compression of the lower extremities (Pcom) was used to increase LV afterload. Subsequently, sublingual nitroglycerin (SL-NG) was administered to modify preload. Conventional echocardiographic parameters, LV end-systolic wall stress, net LV twist angle, and apex-to-base-rotation delay (ABRD) were assessed under each condition. RESULTS In patients with DCM, although LV end-systolic wall stress significantly increased under Pcom (196.9 ± 64.9 g/m(2) at baseline vs 231.8 ± 78.9 g/m(2) under Pcom, P < .017) and decreased after SL-NG application (231.8 ± 78.9 g/m(2) under Pcom vs 197.4 ± 67.4 g/m(2) after SL-NG, P < .017), net LV twist angle and ABRD showed no significant changes depending on LV loading condition (for LV twist, 7.63 ± 4.47° at baseline vs 7.03 ± 4.13° under Pcom vs 7.35 ± 4.36° after SL-NG, P = 0.65; for ABRD, 16.56 ± 13.81% at baseline vs 17.19 ± 14.81% under Pcom vs 15.95 ± 13.27% after SL-NG, P = .53). Careful examination of individual patient data revealed that LV twist was load independent when patients had LV twist < 12°. ABRD was also found to be load independent, but only in patients with LVEFs < 34%. In contrast, LV twist and ABRD were load dependent in patients with preserved LVEFs. CONCLUSIONS LV twist and its component, ABRD, had relatively load insensitive properties in patients with long-standing DCM and can be used in future clinical trials as load-independent indexes of LV dyssynchrony.
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Affiliation(s)
- Hyung-Kwan Kim
- Division of Cardiology, Department of Internal Medicine, Cardiovascular Center, Seoul National University Hospital, Seoul, South Korea.
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Abd-Elmoniem KZ, Tomas MS, Sasano T, Soleimanifard S, Vonken EJP, Youssef A, Agarwal H, Dimaano VL, Calkins H, Stuber M, Prince JL, Abraham TP, Abraham MR. Assessment of distribution and evolution of mechanical dyssynchrony in a porcine model of myocardial infarction by cardiovascular magnetic resonance. J Cardiovasc Magn Reson 2012; 14:1. [PMID: 22226320 PMCID: PMC3268109 DOI: 10.1186/1532-429x-14-1] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2011] [Accepted: 01/06/2012] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND We sought to investigate the relationship between infarct and dyssynchrony post- myocardial infarct (MI), in a porcine model. Mechanical dyssynchrony post-MI is associated with left ventricular (LV) remodeling and increased mortality. METHODS Cine, gadolinium-contrast, and tagged cardiovascular magnetic resonance (CMR) were performed pre-MI, 9 ± 2 days (early post-MI), and 33 ± 10 days (late post-MI) post-MI in 6 pigs to characterize cardiac morphology, location and extent of MI, and regional mechanics. LV mechanics were assessed by circumferential strain (eC). Electro-anatomic mapping (EAM) was performed within 24 hrs of CMR and prior to sacrifice. RESULTS Mean infarct size was 21 ± 4% of LV volume with evidence of post-MI remodeling. Global eC significantly decreased post MI (-27 ± 1.6% vs. -18 ± 2.5% (early) and -17 ± 2.7% (late), p < 0.0001) with no significant change in peri-MI and MI segments between early and late time-points. Time to peak strain (TTP) was significantly longer in MI, compared to normal and peri-MI segments, both early (440 ± 40 ms vs. 329 ± 40 ms and 332 ± 36 ms, respectively; p = 0.0002) and late post-MI (442 ± 63 ms vs. 321 ± 40 ms and 355 ± 61 ms, respectively; p = 0.012). The standard deviation of TTP in 16 segments (SD16) significantly increased post-MI: 28 ± 7 ms to 50 ± 10 ms (early, p = 0.012) to 54 ± 19 ms (late, p = 0.004), with no change between early and late post-MI time-points (p = 0.56). TTP was not related to reduction of segmental contractility. EAM revealed late electrical activation and greatly diminished conduction velocity in the infarct (5.7 ± 2.4 cm/s), when compared to peri-infarct (18.7 ± 10.3 cm/s) and remote myocardium (39 ± 20.5 cm/s). CONCLUSIONS Mechanical dyssynchrony occurs early after MI and is the result of delayed electrical and mechanical activation in the infarct.
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Affiliation(s)
- Khaled Z Abd-Elmoniem
- Biomedical and Metabolic Imaging Branch, National Institute of Diabetes and Digestive and Kidney Diseases, NIH, Bethesda, MD, USA
| | - Miguel Santaularia Tomas
- Department of Medicine, Division of Cardiology, Johns Hopkins University, Baltimore, MD, USA
- Department of Medicine, Division of Cardiology, Hospital Español de Mexico, Distrito Federal, Mexico
| | - Tetsuo Sasano
- Department of Medicine, Division of Cardiology, Johns Hopkins University, Baltimore, MD, USA
| | - Sahar Soleimanifard
- Department of Electrical and Computer Engineering, Johns Hopkins University, Baltimore, MD, USA
| | - Evert-Jan P Vonken
- Department of Medicine, Division of Cardiology, Johns Hopkins University, Baltimore, MD, USA
| | - Amr Youssef
- Department of Medicine, Division of Cardiology, Johns Hopkins University, Baltimore, MD, USA
| | - Harsh Agarwal
- Department of Electrical and Computer Engineering, Johns Hopkins University, Baltimore, MD, USA
| | - Veronica L Dimaano
- Department of Medicine, Division of Cardiology, Johns Hopkins University, Baltimore, MD, USA
| | - Hugh Calkins
- Department of Medicine, Division of Cardiology, Johns Hopkins University, Baltimore, MD, USA
| | - Matthias Stuber
- Department of Radiology, Division of Magnetic Resonance Research, Johns Hopkins University, Baltimore, MD, USA
| | - Jerry L Prince
- Department of Electrical and Computer Engineering, Johns Hopkins University, Baltimore, MD, USA
| | - Theodore P Abraham
- Department of Medicine, Division of Cardiology, Johns Hopkins University, Baltimore, MD, USA
| | - M Roselle Abraham
- Department of Medicine, Division of Cardiology, Johns Hopkins University, Baltimore, MD, USA
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Abe H, Nakatani S, Kanzaki H, Iwahashi N, Hasegawa T, Kitakaze M, Miyatake K. Effects of Aortic Valve Replacement on Left Ventricular Dyssynchrony in Aortic Stenosis with Narrow QRS Complex. J Am Soc Echocardiogr 2011; 24:1358-64. [DOI: 10.1016/j.echo.2011.09.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2010] [Indexed: 10/16/2022]
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Pazhenkottil AP, Buechel RR, Nkoulou R, Ghadri JR, Herzog BA, Husmann L, Wolfrum M, Küest SM, Fiechter M, Gaemperli O, Kaufmann PA. Left ventricular dyssynchrony assessment by phase analysis from gated PET-FDG scans. J Nucl Cardiol 2011; 18:920-5. [PMID: 21671145 DOI: 10.1007/s12350-011-9411-y] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2010] [Accepted: 05/27/2011] [Indexed: 10/18/2022]
Abstract
BACKGROUND The outcome of patients with severe ischaemic left ventricular (LV) dysfunction is determined by the extent of myocardial viability and the presence of LV dyssynchrony. We aimed at assessing both parameters from the same imaging method, i.e. gated positron emission tomography (PET) F18-fluorodeoxyglucose (FDG) scans. METHODS Phase analysis from Emory Cardiac Toolbox was applied on gated PET-FDG scans to assess histogram bandwidth and standard deviation (SD) as a measure of LV dyssynchrony in 30 heart failure patients (mean ejection fraction: 30.2% ± 13.8%) referred for the evaluation of myocardial viability. Cut-off values from single-photon emission computed tomography myocardial perfusion imaging (SPECT-MPI) best predicting cardiac resynchronization therapy (CRT) response served as standard of reference (bandwidth < 135°; phase SD < 43°). Severe LV dyssynchrony was diagnosed if both SPECT-MPI values were above these limits. Intraclass correlation and clinical agreement in detection of severe LV dyssynchrony by PET vs SPECT were assessed. RESULTS There was a significant correlation between PET-FDG and SPECT-MPI for bandwidth (r = 0.88, P < .001) and phase SD (r = 0.88, P < .001) resulting in an excellent clinical agreement between the two methods of 93%. CONCLUSIONS Accurate LV dyssynchrony assessment by phase analysis of gated PET-FDG scans is feasible, allowing assessing myocardial viability and severe LV dyssynchrony in one scan.
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Affiliation(s)
- Aju P Pazhenkottil
- Cardiac Imaging, University Hospital Zurich, Ramistrasse 100, 8091, Zurich, Switzerland
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Takehara N, Matsubara H. Cardiac regeneration therapy: connections to cardiac physiology. Am J Physiol Heart Circ Physiol 2011; 301:H2169-80. [PMID: 21963835 DOI: 10.1152/ajpheart.00768.2011] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Without heart transplantation, a large number of patients with failing hearts worldwide face poor outcomes. By means of cardiomyocyte regeneration, cardiac regeneration therapy is emerging with great promise as a means for restoring loss of cardiac function. However, the limited success of clinical trials using bone marrow-derived cells and myoblasts with heterogeneous constituents, transplanted at a wide range of cell doses, has led to disagreement on the efficacy of cell therapy. It is therefore essential to reevaluate the evidence for the efficacy of cell-based cardiac regeneration therapy, focusing on targets, materials, and methodologies. Meanwhile, the revolutionary innovation of cardiac regeneration therapy is sorely needed to help the millions of people who suffer heart failure from acquired loss of cardiomyocytes. Cardiac regeneration has been used only in limited species or as a developing process in the rodent heart; now, the possibility of cardiomyocyte turnover in the human heart is being revisited. In the pursuit of this concept, the use of cardiac stem/progenitor stem cells in the cardiac niche must be focused to usher in a second era of cardiac regeneration therapy for the severely injured heart. In addition, tissue engineering and cellular reprogramming will advance the next era of treatment that will enable current cell-based therapy to progress to "real" cardiac regeneration therapy. Although many barriers remain, the prevention of refractory heart failure through cardiac regeneration is now becoming a realistic possibility.
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Affiliation(s)
- Naofumi Takehara
- Department of Cardiovascular Regeneration and Innovation, Asahikawa Medical University, Japan
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Giubbini R, Milan E, Bertagna F, Mut F, Metra M, Rodella C, Dondi M. Nuclear cardiology and heart failure. Eur J Nucl Med Mol Imaging 2011; 36:2068-80. [PMID: 19672592 DOI: 10.1007/s00259-009-1246-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2009] [Accepted: 07/26/2009] [Indexed: 01/07/2023]
Abstract
The prevalence of heart failure in the adult population is increasing. It varies between 1% and 2%, although it mainly affects elderly people (6-10% of people over the age of 65 years will develop heart failure). The syndrome of heart failure arises as a consequence of an abnormality in cardiac structure, function, rhythm, or conduction. Coronary artery disease is the leading cause of heart failure and it accounts for this disorder in 60-70% of all patients affected. Nuclear techniques provide unique information on left ventricular function and perfusion by gated-single photon emission tomography (SPECT). Myocardial viability can be assessed by both SPECT and PET imaging. Finally, autonomic dysfunction has been shown to increase the risk of death in patients with heart disease and this may be applicable to all patients with cardiac disease regardless of aetiology. MIBG scanning has a very promising prognostic value in patients with heart failure.
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Affiliation(s)
- Raffaele Giubbini
- Department of Nuclear Medicine, University of Brescia, Piazza Spedali Civili 1, 25123 Brescia, Italy.
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Wang AYM, Sanderson JE. Treatment of heart failure in long-term dialysis patients: a reappraisal. Am J Kidney Dis 2011; 57:760-72. [PMID: 21349619 DOI: 10.1053/j.ajkd.2011.01.014] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2010] [Accepted: 01/11/2011] [Indexed: 12/24/2022]
Abstract
Heart failure is one of the most frequent cardiac complications in patients with end-stage renal disease receiving long-term hemodialysis or peritoneal dialysis and is associated strongly with a poor prognosis. Despite the significant morbidity and mortality associated with heart failure, there are very limited therapeutic options proved to prevent and treat heart failure in dialysis patients. This limitation largely reflects the paucity of adequately powered prospective randomized clinical trials that have examined the efficacy of different therapeutic options in long-term dialysis patients with heart failure. In this article, the second in a series discussing the management of heart failure in dialysis patients, current therapeutic options for heart failure in the maintenance dialysis population are reviewed and potential novel therapeutic options are discussed.
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Affiliation(s)
- Angela Yee-Moon Wang
- Department of Medicine, Queen Mary Hospital, University of Hong Kong, Pokfulam, Hong Kong.
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Lee APW, Song JK, Yip GWK, Zhang Q, Zhu TG, Li C, Chan A, Yu CM. Importance of dynamic dyssynchrony in the occurrence of hypertensive heart failure with normal ejection fraction. Eur Heart J 2010; 31:2642-9. [PMID: 20670959 DOI: 10.1093/eurheartj/ehq248] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
AIMS The impact of haemodynamic stress on left ventricular (LV) dyssynchrony in heart failure with normal ejection fraction (HFNEF) remains unknown. We sought to evaluate the relationship and predictive value of dynamic changes of LV dyssynchrony on hypertensive HFNEF. METHODS AND RESULTS A total of 131 subjects including 47 hypertensive HFNEF patients, 34 hypertensive patients with left ventricular hypertrophy (LVH) without HFNEF, and 50 normal controls were studied by dobutamine stress echocardiography with tissue Doppler imaging. Systolic and diastolic dyssynchrony were assessed using the LV six-basal-six-mid-segment model and cut-off values were derived from normal controls. The mean basal segments longitudinal systolic (mean Sm) and early diastolic (mean Em) velocities were measured. In normal controls, systolic and diastolic dyssynchrony did not develop during stress. The prevalence of resting systolic (36.2% vs. 38.2%, P = 0.85) and diastolic (34.0% vs. 29.4%, P = 0.66) dyssynchrony was similar in HFNEF and LVH groups. During stress, the prevalence of systolic and diastolic dyssynchrony increased dramatically to 85.1% and 87.2%, respectively, in HFNEF group, but only 52.9% and 58.8% in LVH group (P < 0.005). In HFNEF group, stress-induced increase in mean Sm was significantly blunted (2.8 ± 2.0 vs. 4.2 ± 2.4 cm/s, P = 0.004), and the increase was abolished for mean Em (-0.3 ± 2.5 vs. 2.4 ± 3.4 cm/s, P < 0.001). On multivariate analysis, stress-induced changes in mean Em (OR = 0.69, P = 0.004) and mean Sm (OR = 0.56, P = 0.004), and diastolic (OR = 4.6, P = 0.005) and systolic dyssynchrony during stress (OR = 4.3, P = 0.038) were independent determinants for occurrence of HFNEF. CONCLUSION Dynamic dyssynchrony during stress and impaired myocardial longitudinal function reserve are characteristics of HFNEF.
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Affiliation(s)
- Alex Pui-Wai Lee
- Division of Cardiology, Department of Medicine and Therapeutics, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, People's Republic of China
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Park HE, Chang SA, Kim HK, Shin DH, Kim JH, Seo MK, Kim YJ, Cho GY, Sohn DW, Oh BH, Park YB. Impact of Loading Condition on the 2D Speckle Tracking–Derived Left Ventricular Dyssynchrony Index in Nonischemic Dilated Cardiomyopathy. Circ Cardiovasc Imaging 2010; 3:272-81. [PMID: 20190282 DOI: 10.1161/circimaging.109.890848] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Hyo Eun Park
- From the Division of Cardiology (H.E.P., H.-K.K., D.-H.S., J.-H.K., M.K.S., Y.-J.K., G.-Y.C., D.-W.S., B.-H.O., Y.-B.P.), Department of Internal Medicine, Cardiovascular Center, Seoul National University Hospital; and the Division of Cardiology (S.-A.C.), Department of Internal Medicine, Cardiac and Vascular Center, Samsung Medical Center, Seoul, Korea
| | - Sung-A Chang
- From the Division of Cardiology (H.E.P., H.-K.K., D.-H.S., J.-H.K., M.K.S., Y.-J.K., G.-Y.C., D.-W.S., B.-H.O., Y.-B.P.), Department of Internal Medicine, Cardiovascular Center, Seoul National University Hospital; and the Division of Cardiology (S.-A.C.), Department of Internal Medicine, Cardiac and Vascular Center, Samsung Medical Center, Seoul, Korea
| | - Hyung-Kwan Kim
- From the Division of Cardiology (H.E.P., H.-K.K., D.-H.S., J.-H.K., M.K.S., Y.-J.K., G.-Y.C., D.-W.S., B.-H.O., Y.-B.P.), Department of Internal Medicine, Cardiovascular Center, Seoul National University Hospital; and the Division of Cardiology (S.-A.C.), Department of Internal Medicine, Cardiac and Vascular Center, Samsung Medical Center, Seoul, Korea
| | - Dong-Ho Shin
- From the Division of Cardiology (H.E.P., H.-K.K., D.-H.S., J.-H.K., M.K.S., Y.-J.K., G.-Y.C., D.-W.S., B.-H.O., Y.-B.P.), Department of Internal Medicine, Cardiovascular Center, Seoul National University Hospital; and the Division of Cardiology (S.-A.C.), Department of Internal Medicine, Cardiac and Vascular Center, Samsung Medical Center, Seoul, Korea
| | - Ji-Hyun Kim
- From the Division of Cardiology (H.E.P., H.-K.K., D.-H.S., J.-H.K., M.K.S., Y.-J.K., G.-Y.C., D.-W.S., B.-H.O., Y.-B.P.), Department of Internal Medicine, Cardiovascular Center, Seoul National University Hospital; and the Division of Cardiology (S.-A.C.), Department of Internal Medicine, Cardiac and Vascular Center, Samsung Medical Center, Seoul, Korea
| | - Myung-Ki Seo
- From the Division of Cardiology (H.E.P., H.-K.K., D.-H.S., J.-H.K., M.K.S., Y.-J.K., G.-Y.C., D.-W.S., B.-H.O., Y.-B.P.), Department of Internal Medicine, Cardiovascular Center, Seoul National University Hospital; and the Division of Cardiology (S.-A.C.), Department of Internal Medicine, Cardiac and Vascular Center, Samsung Medical Center, Seoul, Korea
| | - Yong-Jin Kim
- From the Division of Cardiology (H.E.P., H.-K.K., D.-H.S., J.-H.K., M.K.S., Y.-J.K., G.-Y.C., D.-W.S., B.-H.O., Y.-B.P.), Department of Internal Medicine, Cardiovascular Center, Seoul National University Hospital; and the Division of Cardiology (S.-A.C.), Department of Internal Medicine, Cardiac and Vascular Center, Samsung Medical Center, Seoul, Korea
| | - Goo-Yeong Cho
- From the Division of Cardiology (H.E.P., H.-K.K., D.-H.S., J.-H.K., M.K.S., Y.-J.K., G.-Y.C., D.-W.S., B.-H.O., Y.-B.P.), Department of Internal Medicine, Cardiovascular Center, Seoul National University Hospital; and the Division of Cardiology (S.-A.C.), Department of Internal Medicine, Cardiac and Vascular Center, Samsung Medical Center, Seoul, Korea
| | - Dae-Won Sohn
- From the Division of Cardiology (H.E.P., H.-K.K., D.-H.S., J.-H.K., M.K.S., Y.-J.K., G.-Y.C., D.-W.S., B.-H.O., Y.-B.P.), Department of Internal Medicine, Cardiovascular Center, Seoul National University Hospital; and the Division of Cardiology (S.-A.C.), Department of Internal Medicine, Cardiac and Vascular Center, Samsung Medical Center, Seoul, Korea
| | - Byung-Hee Oh
- From the Division of Cardiology (H.E.P., H.-K.K., D.-H.S., J.-H.K., M.K.S., Y.-J.K., G.-Y.C., D.-W.S., B.-H.O., Y.-B.P.), Department of Internal Medicine, Cardiovascular Center, Seoul National University Hospital; and the Division of Cardiology (S.-A.C.), Department of Internal Medicine, Cardiac and Vascular Center, Samsung Medical Center, Seoul, Korea
| | - Young-Bae Park
- From the Division of Cardiology (H.E.P., H.-K.K., D.-H.S., J.-H.K., M.K.S., Y.-J.K., G.-Y.C., D.-W.S., B.-H.O., Y.-B.P.), Department of Internal Medicine, Cardiovascular Center, Seoul National University Hospital; and the Division of Cardiology (S.-A.C.), Department of Internal Medicine, Cardiac and Vascular Center, Samsung Medical Center, Seoul, Korea
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Sezai A, Hata M, Niino T, Yoshitake I, Unosawa S, Wakui S, Fujita K, Takayama T, Kasamaki Y, Hirayama A, Minami K. Continuous Low-Dose Infusion of Human Atrial Natriuretic Peptide in Patients With Left Ventricular Dysfunction Undergoing Coronary Artery Bypass Grafting. J Am Coll Cardiol 2010; 55:1844-51. [DOI: 10.1016/j.jacc.2009.11.085] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2009] [Revised: 10/30/2009] [Accepted: 11/02/2009] [Indexed: 11/24/2022]
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Shin SH, Hung CL, Uno H, Hassanein AH, Verma A, Bourgoun M, Køber L, Ghali JK, Velazquez EJ, Califf RM, Pfeffer MA, Solomon SD. Mechanical dyssynchrony after myocardial infarction in patients with left ventricular dysfunction, heart failure, or both. Circulation 2010; 121:1096-103. [PMID: 20176989 DOI: 10.1161/circulationaha.109.863795] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND Mechanical dyssynchrony is considered an independent predictor for adverse cardiovascular outcomes in patients with heart failure. However, its importance as a risk factor after myocardial infarction is not well defined. METHODS AND RESULTS We examined the influence of mechanical dyssynchrony on outcome in patients with left ventricular dysfunction, heart failure, or both after myocardial infarction who were enrolled in the Valsartan in Acute Myocardial Infarction (VALIANT) echocardiography study. B-mode speckle tracking with velocity vector imaging was used to assess ventricular synchrony in 381 patients who had image quality sufficient for analysis. Time to regional peak velocity and time to strain rate were measured among 12 left ventricular segments from the apical 4- and 2- chamber views, and the SDs between all 12 segments were used as a measure of dyssynchrony. The relationships between the SD of time to regional peak velocity and strain rate and clinical outcome of death or heart failure were assessed. In a multivariate Cox model adjusted for clinical and echocardiographic variables, the SD of time to peak velocity (hazard ratio per 10 ms, 1.10; 95% confidence interval, 1.02 to 1.18; P=0.010) and the SD of time to strain rate (hazard ratio per 10 ms, 1.16; 95% confidence interval, 1.06 to 1.27; P=0.001) were independent predictors of death or heart failure. CONCLUSIONS Left ventricular dyssynchrony is independently associated with increased risk of death or heart failure after myocardial infarction, suggesting that contractile pattern may play a role in post-myocardial infarction prognosis.
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Affiliation(s)
- Sung-Hee Shin
- Cardiovascular Division, Brigham and Women's Hospital, Boston, MA 02115, USA
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Nucifora G, Bertini M, Marsan NA, Delgado V, Scholte AJ, Ng AC, van Werkhoven JM, Siebelink HMJ, Holman ER, Schalij MJ, van der Wall EE, Bax JJ. Impact of left ventricular dyssynchrony early on left ventricular function after first acute myocardial infarction. Am J Cardiol 2010; 105:306-11. [PMID: 20102940 DOI: 10.1016/j.amjcard.2009.09.028] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2009] [Revised: 09/11/2009] [Accepted: 09/11/2009] [Indexed: 11/25/2022]
Abstract
The impact of left ventricular (LV) dyssynchrony after acute myocardial infarction (AMI) on LV ejection fraction (EF) is unknown. One hundred twenty-nine patients with a first ST-elevation AMI (58 + or - 11 years, 78% men) and QRS duration <120 ms were included. All patients underwent primary percutaneous coronary intervention. Real-time 3-dimensional echocardiography and myocardial contrast echocardiography were performed to assess LV function, LV dyssynchrony, and infarct size. LV dyssynchrony was defined as the SD of the time to reach the minimum systolic volume for 16 LV segments, expressed in percent cardiac cycle (systolic dyssynchrony index [SDI]). Myocardial perfusion at myocardial contrast echocardiography was scored (1 = normal/homogenous; 2 = decreased/patchy; 3 = minimal/absent) using a 16-segment model; a myocardial perfusion index, expressing infarct size, was derived by summing segmental contrast scores and dividing by the number of segments. SDI in patients with AMI was 5.24 + or - 2.23% compared to 2.02 + or - 0.70% of controls (p <0.001). Patients with AMI and LVEF <45% had significantly higher SDI compared to patients with LVEF > or = 45% (4.29 + or - 1.44 vs 6.95 + or - 2.40, p <0.001). At multivariate analysis, SDI was independently related to LVEF; in addition, the impact of SDI on LV systolic function was incremental to infarct size and anterior location of AMI (F change 16.9, p <0.001). In conclusion, LV synchronicity is significantly impaired soon after AMI. LV dyssynchrony is related to LVEF and has an additional detrimental effect on LV function, beyond infarct size and the anterior location of AMI.
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Maruyama Y, Masaki N, Shimizu Y, Honda N, Yoshimoto N. Correlation of left ventricular dyssynchrony with myocardial stunning using dual single photon emission computed tomography of 123iodine-β-methyl iodophenyl pentadecanoic acid and 201thallium scintigraphy after reperfusion therapy. Ann Nucl Med 2009; 23:799-805. [DOI: 10.1007/s12149-009-0312-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2009] [Accepted: 09/25/2009] [Indexed: 10/20/2022]
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Penicka M, Linkova H, Lang O, Fojt R, Kocka V, Vanderheyden M, Bartunek J. Predictors of improvement of unrepaired moderate ischemic mitral regurgitation in patients undergoing elective isolated coronary artery bypass graft surgery. Circulation 2009; 120:1474-81. [PMID: 19786637 DOI: 10.1161/circulationaha.108.842104] [Citation(s) in RCA: 101] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND The persistence of moderate ischemic mitral regurgitation (IMR) after isolated coronary artery bypass graft surgery is an important independent predictor of long-term mortality. The aim of the present study was to identify predictors of postoperative improvement in moderate IMR in patients with ischemic heart disease undergoing elective isolated coronary artery bypass graft surgery. METHODS AND RESULTS The study population consisted of 135 patients with ischemic heart disease (age, 65+/-9 years; 81% male) and moderate IMR undergoing isolated coronary artery bypass graft surgery. Fourteen patients died before the 12-month follow-up echocardiography and were excluded. At the 12-month follow-up, 57 patients showed no or mild IMR (improvement group), whereas 64 patients failed to improve (failure group). Before coronary artery bypass graft surgery, the improvement group had significantly more viable myocardium and less dyssynchrony between papillary muscles than the failure group (P<0.001). All other preoperative parameters were similar in both groups. Large extent (> or =5 segments) of viable myocardium (odds ratio, 1.45; 95% confidence interval, 1.22 to 1.89; P<0.001) and absence (<60 ms) of dyssynchrony (odds ratio, 1.49; 95% confidence interval, 1.29 to 1.72; P<0.001) were independently associated with improvement in IMR. The majority (93%) of patients with viable myocardium and an absence of dyssynchrony showed an improvement in IMR. In contrast, only 34% and 18% of patients with dyssynchrony and nonviable myocardium, respectively, showed an improvement in IMR, whereas 32% and 49%, respectively, of these patients showed worsening of IMR (P<0.001). CONCLUSIONS Reliable improvement in moderate IMR by isolated coronary artery bypass graft surgery was observed only in patients with concomitant presence of viable myocardium and absence of dyssynchrony between papillary muscles.
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Affiliation(s)
- Martin Penicka
- Department of Cardiology, Third Faculty of Medicine Charles University in Prague, Ruska 87, 10004 Prague, Czech Republic.
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