1
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Pingitore A, Zhang C, Vassalle C, Ferragina P, Landi P, Mastorci F, Sicari R, Tommasi A, Zavattari C, Prencipe G, Sîrbu A. Machine learning to identify a composite indicator to predict cardiac death in ischemic heart disease. Int J Cardiol 2024; 404:131981. [PMID: 38527629 DOI: 10.1016/j.ijcard.2024.131981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 03/13/2024] [Accepted: 03/17/2024] [Indexed: 03/27/2024]
Abstract
BACKGROUND Machine learning (ML) employs algorithms that learn from data, building models with the potential to predict events by aggregating a large number of variables and assessing their complex interactions. The aim of this study is to assess ML potential in identifying patients with ischemic heart disease (IHD) at high risk of cardiac death (CD). METHODS 3987 (mean age 68 ± 11) hospitalized IHD patients were enrolled. We implemented and compared various ML models and their combination into ensembles. Model output constitutes a new ML indicator to be employed for stratification. Primary variable importance was assessed with ablation tests. RESULTS An ensemble classifier combining three ML models achieved the best performance to predict CD (AUROC of 0.830, F1-macro of 0.726). ML indicator use through Cox survival analysis outperformed the 18 variables individually, producing a better stratification compared to standard multivariate analysis (improvement of ∼20%). Patients in the low risk group defined through ML indicator had a significantly higher survival (88.8% versus 29.1%). The main variables identified were Dyslipidemia, LVEF, Previous CABG, Diabetes, Previous Myocardial Infarction, Smoke, Documented resting or exertional ischemia, with an AUROC of 0.791 and an F1-score of 0.674, lower than that of 18 variables. Both code and clinical data are freely available with this article. CONCLUSION ML may allow a faster, low-cost and reliable evaluation of IHD patient prognosis by inclusion of more predictors and identification of those more significant, improving outcome prediction towards the development of precision medicine in this clinical field.
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Affiliation(s)
| | - Chenxiang Zhang
- Computer Science Department, University of Pisa, Pisa, Italy
| | | | - Paolo Ferragina
- Computer Science Department, University of Pisa, Pisa, Italy
| | | | | | - Rosa Sicari
- Clinical Physiology Institute, CNR, Pisa, Italy
| | | | | | | | - Alina Sîrbu
- Computer Science Department, University of Pisa, Pisa, Italy
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2
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Bergamaschi L, Pavon AG, Angeli F, Tuttolomondo D, Belmonte M, Armillotta M, Sansonetti A, Foà A, Paolisso P, Baggiano A, Mushtaq S, De Zan G, Carriero S, Cramer MJ, Teske AJ, Broekhuizen L, van der Bilt I, Muscogiuri G, Sironi S, Leo LA, Gaibazzi N, Lovato L, Pontone G, Pizzi C, Guglielmo M. The Role of Non-Invasive Multimodality Imaging in Chronic Coronary Syndrome: Anatomical and Functional Pathways. Diagnostics (Basel) 2023; 13:2083. [PMID: 37370978 DOI: 10.3390/diagnostics13122083] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 06/10/2023] [Accepted: 06/12/2023] [Indexed: 06/29/2023] Open
Abstract
Coronary artery disease (CAD) is one of the major causes of mortality and morbidity worldwide, with a high socioeconomic impact. Currently, various guidelines and recommendations have been published about chronic coronary syndromes (CCS). According to the recent European Society of Cardiology guidelines on chronic coronary syndrome, a multimodal imaging approach is strongly recommended in the evaluation of patients with suspected CAD. Today, in the current practice, non-invasive imaging methods can assess coronary anatomy through coronary computed tomography angiography (CCTA) and/or inducible myocardial ischemia through functional stress testing (stress echocardiography, cardiac magnetic resonance imaging, single photon emission computed tomography-SPECT, or positron emission tomography-PET). However, recent trials (ISCHEMIA and REVIVED) have cast doubt on the previous conception of the management of patients with CCS, and nowadays it is essential to understand the limitations and strengths of each imaging method and, specifically, when to choose a functional approach focused on the ischemia versus a coronary anatomy-based one. Finally, the concept of a pathophysiology-driven treatment of these patients emerged as an important goal of multimodal imaging, integrating 'anatomical' and 'functional' information. The present review aims to provide an overview of non-invasive imaging modalities for the comprehensive management of CCS patients.
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Affiliation(s)
- Luca Bergamaschi
- Division of Cardiology, Cardiocentro Ticino Institute, Ente Ospedaliero Cantonale, Via Tesserete, 48, 6900 Lugano, Switzerland
| | - Anna Giulia Pavon
- Division of Cardiology, Cardiocentro Ticino Institute, Ente Ospedaliero Cantonale, Via Tesserete, 48, 6900 Lugano, Switzerland
| | - Francesco Angeli
- Cardiology Unit, IRCCS Azienda Ospedaliera-Universitaria di Bologna, 40138 Bologna, Italy
- Department of Medical and Surgical Sciences-DIMEC-Alma Mater Studiorum, University of Bologna, 40138 Bologna, Italy
| | - Domenico Tuttolomondo
- Department of Cardiology, Parma University Hospital, Viale Antonio Gramsci 14, 43126 Parma, Italy
| | - Marta Belmonte
- Cardiovascular Center Aalst, OLV-Clinic, 9300 Aalst, Belgium
- Department of Advanced Biomedical Sciences, University Federico II, 80138 Naples, Italy
| | - Matteo Armillotta
- Cardiology Unit, IRCCS Azienda Ospedaliera-Universitaria di Bologna, 40138 Bologna, Italy
- Department of Medical and Surgical Sciences-DIMEC-Alma Mater Studiorum, University of Bologna, 40138 Bologna, Italy
| | - Angelo Sansonetti
- Cardiology Unit, IRCCS Azienda Ospedaliera-Universitaria di Bologna, 40138 Bologna, Italy
- Department of Medical and Surgical Sciences-DIMEC-Alma Mater Studiorum, University of Bologna, 40138 Bologna, Italy
| | - Alberto Foà
- Cardiology Unit, IRCCS Azienda Ospedaliera-Universitaria di Bologna, 40138 Bologna, Italy
- Department of Medical and Surgical Sciences-DIMEC-Alma Mater Studiorum, University of Bologna, 40138 Bologna, Italy
| | - Pasquale Paolisso
- Department of Advanced Biomedical Sciences, University Federico II, 80138 Naples, Italy
| | - Andrea Baggiano
- Perioperative and Cardiovascular Imaging Department, Centro Cardiologico Monzino IRCCS, 20138 Milan, Italy
- Department of Clinical Sciences and Community Health, University of Milan, 20122 Milan, Italy
| | - Saima Mushtaq
- Perioperative and Cardiovascular Imaging Department, Centro Cardiologico Monzino IRCCS, 20138 Milan, Italy
| | - Giulia De Zan
- Department of Cardiology, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands
- Department of Translational Medicine, University of Eastern Piedmont, Maggiore della Carità Hospital, 28100 Novara, Italy
| | - Serena Carriero
- Postgraduate School of Radiodiagnostics, Università degli Studi di Milano, 20122 Milan, Italy
| | - Maarten-Jan Cramer
- Department of Cardiology, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands
| | - Arco J Teske
- Department of Cardiology, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands
| | - Lysette Broekhuizen
- Department of Cardiology, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands
| | - Ivo van der Bilt
- Department of Cardiology, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands
- Department of Cardiology, Haga Teaching Hospital, 2545 GM The Hague, The Netherlands
| | - Giuseppe Muscogiuri
- School of Medicine and Surgery, University of Milano-Bicocca, 20126 Milan, Italy
- Department of Radiology, IRCCS Istituto Auxologico Italiano, San Luca Hospital, 20149 Milan, Italy
| | - Sandro Sironi
- School of Medicine and Surgery, University of Milano-Bicocca, 20126 Milan, Italy
- Department of Radiology, ASST Papa Giovanni XXIII Hospital, 24127 Bergamo, Italy
| | - Laura Anna Leo
- Division of Cardiology, Cardiocentro Ticino Institute, Ente Ospedaliero Cantonale, Via Tesserete, 48, 6900 Lugano, Switzerland
| | - Nicola Gaibazzi
- Department of Cardiology, Parma University Hospital, Viale Antonio Gramsci 14, 43126 Parma, Italy
| | - Luigi Lovato
- Department of Radiology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Albertoni 15, 40138 Bologna, Italy
| | - Gianluca Pontone
- Perioperative and Cardiovascular Imaging Department, Centro Cardiologico Monzino IRCCS, 20138 Milan, Italy
| | - Carmine Pizzi
- Cardiology Unit, IRCCS Azienda Ospedaliera-Universitaria di Bologna, 40138 Bologna, Italy
- Department of Medical and Surgical Sciences-DIMEC-Alma Mater Studiorum, University of Bologna, 40138 Bologna, Italy
| | - Marco Guglielmo
- Department of Cardiology, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands
- Department of Cardiology, Haga Teaching Hospital, 2545 GM The Hague, The Netherlands
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3
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Edvardsen T, Asch FM, Davidson B, Delgado V, DeMaria A, Dilsizian V, Gaemperli O, Garcia MJ, Kamp O, Lee DC, Neglia D, Neskovic AN, Pellikka PA, Plein S, Sechtem U, Shea E, Sicari R, Villines TC, Lindner JR, Popescu BA. Non-Invasive Imaging in Coronary Syndromes: Recommendations of The European Association of Cardiovascular Imaging and the American Society of Echocardiography, in Collaboration with The American Society of Nuclear Cardiology, Society of Cardiovascular Computed Tomography, and Society for Cardiovascular Magnetic Resonance. J Cardiovasc Comput Tomogr 2022; 16:362-383. [PMID: 35729014 DOI: 10.1016/j.jcct.2022.05.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Thor Edvardsen
- Department of Cardiology, Oslo University Hospital, Rikshospitalet, University of Oslo, Oslo, Norway.
| | - Federico M Asch
- MedStar Health Research Institute, Georgetown University, Washington, District of Columbia
| | - Brian Davidson
- Knight Cardiovascular Institute, Oregon Health & Science University, Portland, Oregon; VA Portland Health Care System, Portland, Oregon
| | - Victoria Delgado
- Department of Cardiology, Leiden University Medical Centre, Leiden, the Netherlands
| | | | - Vasken Dilsizian
- Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland Medical Center, Baltimore, Maryland
| | | | - Mario J Garcia
- Division of Cardiology, Montefiore-Einstein Center for Heart and Vascular Care, Bronx, New York
| | - Otto Kamp
- Department of Cardiology, Amsterdam University Medical Center, Amsterdam, the Netherlands
| | - Daniel C Lee
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Danilo Neglia
- Department of Cardiology, Istituto di Scienze della Vita Scuola Superiore Sant Anna Pisa, Pisa, Italy
| | - Aleksandar N Neskovic
- Faculty of Medicine, Department of Cardiology, Clinical Hospital Center Zemun, University of Belgrade, Belgrade, Serbia
| | - Patricia A Pellikka
- Division of Cardiovascular Ultrasound, Department of Cardiovascular Medicine, Rochester, Minnesota
| | - Sven Plein
- Department of Biomedical Imaging Science, Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds Teaching Hospitals NHS Trust, Leeds, United Kingdom
| | - Udo Sechtem
- Cardiologicum Stuttgart and Department of Cardiology, Robert Bosch Krankenhaus, Stuttgart, Germany
| | - Elaine Shea
- Alta Bates Summit Medical Center, Berkeley and Oakland, Berkeley, California
| | - Rosa Sicari
- CNR, Institute of Clinical Physiology, Pisa, Italy
| | - Todd C Villines
- Division of Cardiovascular Medicine, University of Virginia Health System, University of Virginia Health Center, Charlottesville, Virginia
| | - Jonathan R Lindner
- Knight Cardiovascular Institute, Oregon Health & Science University, Portland, Oregon
| | - Bogdan A Popescu
- Department of Cardiology, University of Medicine and Pharmacy Carol Davila Euroecolab, Emergency Institute for Cardiovascular Diseases Prof. Dr. C. C. Iliescu, Bucharest, Romania
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4
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Edvardsen T, Asch FM, Davidson B, Delgado V, DeMaria A, Dilsizian V, Gaemperli O, Garcia MJ, Kamp O, Lee DC, Neglia D, Neskovic AN, Pellikka PA, Plein S, Sechtem U, Shea E, Sicari R, Villines TC, Lindner JR, Popescu BA. Non-Invasive Imaging in Coronary Syndromes: Recommendations of The European Association of Cardiovascular Imaging and the American Society of Echocardiography, in Collaboration with The American Society of Nuclear Cardiology, Society of Cardiovascular Computed Tomography, and Society for Cardiovascular Magnetic Resonance. J Am Soc Echocardiogr 2022; 35:329-354. [PMID: 35379446 DOI: 10.1016/j.echo.2021.12.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Thor Edvardsen
- Department of Cardiology, Oslo University Hospital, Rikshospitalet, University of Oslo, Oslo, Norway.
| | - Federico M Asch
- MedStar Health Research Institute, Georgetown University, Washington, District of Columbia
| | - Brian Davidson
- Knight Cardiovascular Institute, Oregon Health & Science University, Portland, Oregon; VA Portland Health Care System, Portland, Oregon
| | - Victoria Delgado
- Department of Cardiology, Leiden University Medical Centre, Leiden, the Netherlands
| | | | - Vasken Dilsizian
- Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland Medical Center, Baltimore, Maryland
| | | | - Mario J Garcia
- Division of Cardiology, Montefiore-Einstein Center for Heart and Vascular Care, Bronx, New York
| | - Otto Kamp
- Department of Cardiology, Amsterdam University Medical Center, Amsterdam, the Netherlands
| | - Daniel C Lee
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Danilo Neglia
- Department of Cardiology, Istituto di Scienze della Vita Scuola Superiore Sant'Anna - Pisa, Pisa, Italy
| | - Aleksandar N Neskovic
- Faculty of Medicine, Department of Cardiology, Clinical Hospital Center Zemun, University of Belgrade, Belgrade, Serbia
| | - Patricia A Pellikka
- Division of Cardiovascular Ultrasound, Department of Cardiovascular Medicine, Rochester, Minnesota
| | - Sven Plein
- Department of Biomedical Imaging Science, Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds Teaching Hospitals NHS Trust, Leeds, United Kingdom
| | - Udo Sechtem
- Cardiologicum Stuttgart and Department of Cardiology, Robert Bosch Krankenhaus, Stuttgart, Germany
| | - Elaine Shea
- Alta Bates Summit Medical Center, Berkeley and Oakland, Berkeley, California
| | - Rosa Sicari
- CNR, Institute of Clinical Physiology, Pisa, Italy
| | - Todd C Villines
- Division of Cardiovascular Medicine, University of Virginia Health System, University of Virginia Health Center, Charlottesville, Virginia
| | - Jonathan R Lindner
- Knight Cardiovascular Institute, Oregon Health & Science University, Portland, Oregon
| | - Bogdan A Popescu
- Department of Cardiology, University of Medicine and Pharmacy "Carol Davila"-Euroecolab, Emergency Institute for Cardiovascular Diseases "Prof. Dr. C. C. Iliescu", Bucharest, Romania
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5
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Gaibazzi N, Tuttolomondo D, Guaricci AI, De Marco F, Pontone G. Stress-echocardiography or coronary computed tomography in suspected chronic coronary syndrome after the 2019 European Guidelines? A practical guide. J Cardiovasc Med (Hagerstown) 2022; 23:12-21. [PMID: 34366402 DOI: 10.2459/jcm.0000000000001235] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Stress-echocardiography can rightly be considered one of the champions of cardiac functional imaging, thanks to its real-time imaging, high temporal resolution, high safety and very low cost. When stress-echocardiography is performed at top technical quality, hence taking advantage of ultrasound contrast media for endocardial border delineation at least for suboptimal cases, subjectivity is minimized, and with the routine use of coronary flow reserve measurement (left anterior descending coronary artery, stress/rest ratio reduced or normal, i.e. <>2.0) diagnostic sensitivity is strengthened. The true competitor of any type of functional imaging, stress-echocardiography included, is nowadays coronary computed tomography angiography, which is instead a diagnostic method directly, noninvasively assessing coronary anatomy, apparently the holy grail for any cardiologist. The new 2019 Guidelines on chronic coronary syndrome of the European Society of Cardiology change the existing landscape and clinical practice, while they probably cannot clarify which type of test, functional or anatomic, should be first chosen in different clinical scenarios of suspected chronic coronary syndrome. We review the existing data and the authors' personal view in order to assess how functional stress-echocardiography compares with coronary computed tomography angiography regarding three main aspects: diagnosis of coronary artery disease, guidance of therapy (coronary revascularization versus medical therapy) and risk stratification.
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Affiliation(s)
| | | | | | - Federico De Marco
- Department of Clinical and Interventional Cardiology, IRCCS Policlinico San Donato, San Donato Milanese
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6
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Edvardsen T, Asch FM, Davidson B, Delgado V, DeMaria A, Dilsizian V, Gaemperli O, Garcia MJ, Kamp O, Lee DC, Neglia D, Neskovic AN, Pellikka PA, Plein S, Sechtem U, Shea E, Sicari R, Villines TC, Lindner JR, Popescu BA. Non-invasive Imaging in Coronary Syndromes - Recommendations of the European Association of Cardiovascular Imaging and the American Society of Echocardiography, in Collaboration with the American Society of Nuclear Cardiology, Society of Cardiovascular Computed Tomography and Society for Cardiovascular Magnetic Resonance. Eur Heart J Cardiovasc Imaging 2021; 23:e6-e33. [PMID: 34751391 DOI: 10.1093/ehjci/jeab244] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 11/08/2021] [Indexed: 11/14/2022] Open
Abstract
Coronary artery disease (CAD) is one of the major causes of mortality and morbidity worldwide, with a high socioeconomic impact.(1) Non-invasive imaging modalities play a fundamental role in the evaluation and management of patients with known or suspected CAD. Imaging end-points have served as surrogate markers in many observational studies and randomized clinical trials that evaluated the benefits of specific therapies for CAD.(2) A number of guidelines and recommendations have been published about coronary syndromes by cardiology societies and associations, but have not focused on the excellent opportunities with cardiac imaging. The recent European Society of Cardiology (ESC) 2019 guideline on chronic coronary syndromes (CCS) and 2020 guideline on acute coronary syndromes in patients presenting with non-ST-segment elevation (NSTE-ACS) highlight the importance of non-invasive imaging in the diagnosis, treatment, and risk assessment of the disease.(3)(4) The purpose of the current recommendations is to present the significant role of non-invasive imaging in coronary syndromes in more detail. These recommendations have been developed by the European Association of Cardiovascular Imaging (EACVI) and the American Society of Echocardiography (ASE), in collaboration with the American Society of Nuclear Cardiology, the Society of Cardiovascular Computed Tomography, and the Society for Cardiovascular Magnetic Resonance, all of which have approved the final document.
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Affiliation(s)
- Thor Edvardsen
- Dept of Cardiology, Oslo University Hospital, Rikshospitalet, Oslo Norway, and University of Oslo, Norway
| | - Federico M Asch
- MedStar Health Research Institute, Georgetown University, Washington, DC, . USA
| | - Brian Davidson
- Knight Cardiovascular Institute, Oregon Health & Science University; VA Portland Health Care System, Portland, OR, USA
| | - Victoria Delgado
- Department of Cardiology, Leiden University Medical Centre, 2300RC, Leiden, The Netherlands
| | | | - Vasken Dilsizian
- Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, Baltimore, USA
| | | | - Mario J Garcia
- Division of Cardiology, Montefiore-Einstein Center for Heart and Vascular Care, 111 East 210th Street, Bronx, New York, 10467, USA
| | - Otto Kamp
- Department of Cardiology, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam Cardiovascular Sciences, The Netherlands
| | - Daniel C Lee
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Danilo Neglia
- Department of Cardiology, Fondazione Toscana G. Monastrerio, Pisa, Italy
| | - Aleksandar N Neskovic
- Dept of Cardiology, Clinical Hospital Zemun, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Patricia A Pellikka
- Division of Cardiovascular Ultrasound, Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN, USA
| | - Sven Plein
- Department of Biomedical Imaging Science, Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, UK
| | - Udo Sechtem
- Cardiologicum Stuttgart and Department of Cardiology, Robert Bosch Krankenhaus, Stuttgart, Germany
| | - Elaine Shea
- Alta Bates Summit Medical Center, Berkeley and Oakland, California, ., USA
| | - Rosa Sicari
- CNR, Institute of Clinical Physiology, Pisa and Milan, Italy
| | - Todd C Villines
- Division of Cardiovascular Medicine, University of Virginia Health System, Charlottesville, VA, USA
| | - Jonathan R Lindner
- Knight Cardiovascular Institute and Oregon National Primate Research Center, Oregon Health & Science University, Portland, OR, USA
| | - Bogdan A Popescu
- Department of Cardiology, University of Medicine and Pharmacy "Carol Davila" - Euroecolab, Emergency Institute for Cardiovascular Diseases "Prof. Dr. C. C. Iliescu", Bucharest, Romania
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7
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Cortigiani L, Urluescu ML, Coltelli M, Carpeggiani C, Bovenzi F, Picano E. Apparent Declining Prognostic Value of a Negative Stress Echocardiography Based on Regional Wall Motion Abnormalities in Patients With Normal Resting Left Ventricular Function Due to the Changing Referral Profile of the Population Under Study. Circ Cardiovasc Imaging 2019; 12:e008564. [PMID: 31167561 DOI: 10.1161/circimaging.118.008564] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Background Cardiology guidelines identify the low-risk response during stress echocardiography as the absence of regional wall motion abnormalities. Methods From 1983 to 2016, we enrolled 5817 patients (age 63±12 years; 2830 males) with suspected coronary artery disease, normal regional, and global left ventricular function at rest and during stress (exercise in 692, dipyridamole in 4291, and dobutamine in 834). Based on timing of enrollment, 4 groups were identified in chronological order of recruitment: years 1983 to 1989, group 1 (n=211); years 1990 to 1999, group 2 (n=1491); years 2000 to 2009, group 3 (n=3285); and years 2010 to 2016, group 4 (n=830). Results There were 240 (4%) events (119 deaths and 121 infarctions) in the follow-up. At 1-year follow-up, the event rate was 0.5% (95% CI, 0.05-0.95), 1.5% (95% CI, -1.18 to 1.82), 1.9% (95% CI, 1.63-2.17), and 1.7% (95% CI, 1.01-2.39; χ2, 9.0; P=0.03) in groups 1 to 4, respectively. At multivariable Cox analysis, independent predictors of future events were age (hazard ratio (HR), 1.05; 95% CI, 1.04-1.07; P<0.0001), male sex (HR, 1.57; 95% CI, 1.20-2.04; P=0.001), diabetes mellitus (HR, 1.78; 95% CI, 1.34-2.37; P<0.0001), smoking habit (HR, 1.40; 95% CI, 1.05-1.85; P=0.02), and ongoing anti-ischemic therapy (HR, 1.50; 95% CI, 1.15-1.97; P=0.003) Conclusions Over the past 3 decades, we observed a progressive decline in the prognostic value of a negative test based on regional wall motion abnormalities, likely reflecting both an increase in risk in patients, as well as a potential decrease in test performance due to concomitant anti-ischemic therapy.
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Affiliation(s)
- Lauro Cortigiani
- Cardiology Division, San Luca Hospital, Lucca, Italy (L.C., F.B.)
| | - Mădălina-Loredana Urluescu
- Invasive and Noninvasive Research Center for Cardiac and Vascular Pathology in Adult (CVASIC), "Lucian Blaga" University of Sibiu, Romania (M.-L.U.)
| | - Maico Coltelli
- Dipartimento tecnologie informatiche ESTAR Toscana, Pisa (M.C.)
| | - Clara Carpeggiani
- Institute of Clinical Physiology, Biomedicine Department, National Research Council, Pisa, Italy (C.C., E.P.)
| | | | - Eugenio Picano
- Institute of Clinical Physiology, Biomedicine Department, National Research Council, Pisa, Italy (C.C., E.P.)
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8
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Soufer A, McNamara RL. Stress Echocardiography. Circ Cardiovasc Imaging 2019; 12:e009318. [DOI: 10.1161/circimaging.119.009318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Aaron Soufer
- Department of Medicine (Cardiovascular), Yale School of Medicine, New Haven, CT
| | - Robert L. McNamara
- Department of Medicine (Cardiovascular), Yale School of Medicine, New Haven, CT
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9
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Sicari R, Cortigiani L, Arystan AZ, Fettser DV. [The Clinical use of Stress Echocardiography in Ischemic Heart Disease Cardiovascular Ultrasound (2017)15:7. Translation authors: Arystan A.Zh., Fettser D.V.]. ACTA ACUST UNITED AC 2019; 59:78-96. [PMID: 30990145 DOI: 10.18087/cardio.2019.3.10244] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2019] [Accepted: 04/13/2019] [Indexed: 01/08/2023]
Abstract
Stress echocardiography is an established technique for the assessment of extent and severity of coronary artery disease. The combination of echocardiography with a physical, pharmacological or electrical stress allows detecting myocardial ischemia with an excellent accuracy. A transient worsening of regional function during stress is the hallmark of inducible ischemia. Stress echocardiography provides similar diagnostic and prognostic accuracy as radionuclide stress perfusion imaging or magnetic resonance, but at a substantially lower cost, without environmental impact, and with no biohazards for the patient and the physician. The evidence on its clinical impact has been collected over 35 years, based on solid experimental, pathophysiological, technological and clinical foundations. There is the need to implement the combination of wall motion and coronary flow reserve, assessed in the left anterior descending artery, into a single test. The improvement of technology and in imaging quality will make this approach more and more feasible. The future issues in stress echo will be the possibility of obtaining quantitative information translating the current qualitative assessment of regional wall motion into a number. The next challenge for stress echocardiography is to overcome its main weaknesses: dependence on operator expertise, the lack of outcome data (a widespread problem in clinical imaging) to document the improvement of patient outcomes. This paper summarizes the main indications for the clinical applications of stress echocardiography to ischemic heart disease.
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Affiliation(s)
| | | | - A Zh Arystan
- Medical Centre Hospital of President's Affairs Administration of the RK, Astana
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10
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Sicari R, Cortigiani L. The clinical use of stress echocardiography in ischemic heart disease. Cardiovasc Ultrasound 2017; 15:7. [PMID: 28327159 PMCID: PMC5361820 DOI: 10.1186/s12947-017-0099-2] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Accepted: 03/15/2017] [Indexed: 12/18/2022] Open
Abstract
Stress echocardiography is an established technique for the assessment of extent and severity of coronary artery disease. The combination of echocardiography with a physical, pharmacological or electrical stress allows to detect myocardial ischemia with an excellent accuracy. A transient worsening of regional function during stress is the hallmark of inducible ischemia. Stress echocardiography provides similar diagnostic and prognostic accuracy as radionuclide stress perfusion imaging or magnetic resonance, but at a substantially lower cost, without environmental impact, and with no biohazards for the patient and the physician. The evidence on its clinical impact has been collected over 35 years, based on solid experimental, pathophysiological, technological and clinical foundations. There is the need to implement the combination of wall motion and coronary flow reserve, assessed in the left anterior descending artery, into a single test. The improvement of technology and in imaging quality will make this approach more and more feasible. The future issues in stress echo will be the possibility of obtaining quantitative information translating the current qualitative assessment of regional wall motion into a number. The next challenge for stress echocardiography is to overcome its main weaknesses: dependance on operator expertise, the lack of outcome data (a widesperad problem in clinical imaging) to document the improvement of patient outcomes. This paper summarizes the main indications for the clinical applications of stress echocardiography to ischemic heart disease.
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Affiliation(s)
- Rosa Sicari
- CNR, Institute of Clinical Physiology, Via G. Moruzzi, 1, 56124, Pisa, Italy.
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11
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Mattoso AAA, Tsutsui JM, Kowatsch I, Cruz VYL, Sbano JCN, Ribeiro HB, Kalil Filho R, Porter TR, Mathias W. Prognostic value of dobutamine stress myocardial perfusion echocardiography in patients with known or suspected coronary artery disease and normal left ventricular function. PLoS One 2017; 12:e0172280. [PMID: 28234978 PMCID: PMC5325237 DOI: 10.1371/journal.pone.0172280] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2016] [Accepted: 02/02/2017] [Indexed: 01/13/2023] Open
Abstract
Objective We sought to determine the prognostic value of qualitative and quantitative analysis obtained by real-time myocardial perfusion echocardiography (RTMPE) in patients with known or suspected coronary artery disease (CAD). Background Quantification of myocardial blood flow reserve (MBFR) in patients with CAD using RTMPE has been demonstrated to further improve accuracy over the analysis of wall motion (WM) and qualitative analysis of myocardial perfusion (QMP). Methods From March 2003 to December 2008, we prospectively studied 168 patients with normal left ventricular function (LVF) who underwent dobutamine stress RTMPE. The replenishment velocity reserve (β) and MBFR were derived from RTMPE. Acute coronary events were: cardiac death, myocardial infarction and unstable angina with need for urgent coronary revascularization. Results During a median follow-up of 34 months (5 days to 6.9 years), 17 acute coronary events occurred. Abnormal β reserve in ≥2 coronary territories was the only independent predictor of events hazard ratio (HR) = 21, 95% CI = 4.5–99; p<0.001). Both, abnormal β reserve and MBFR added significant incremental value in predicting events over qualitative analysis of WM and MP (χ2 = 6.6 and χ2 = 24.6, respectively; p = 0.001 and χ2 = 6.6 and χ2 = 15.5, respectively; p = 0.012, respectively). When coronary angiographic data was added to the multivariate analysis model, β reserve remained the only predictor of events with HR of 21.0 (95% CI = 4.5–99); p<0.001. Conclusion Quantitative dobutamine stress RTMPE provides incremental prognostic information over clinical variables, qualitative analysis of WM and MP, and coronary angiography in predicting acute coronary events.
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Affiliation(s)
- Angele A. A. Mattoso
- Heart Institute (InCor), University of São Paulo Medical School, São Paulo, Brazil
| | - Jeane M. Tsutsui
- Heart Institute (InCor), University of São Paulo Medical School, São Paulo, Brazil
- * E-mail:
| | - Ingrid Kowatsch
- Heart Institute (InCor), University of São Paulo Medical School, São Paulo, Brazil
| | - Vitória Y. L. Cruz
- Heart Institute (InCor), University of São Paulo Medical School, São Paulo, Brazil
| | - João C. N. Sbano
- University of Nebraska Medical Center, Omaha, United States of America
| | - Henrique B. Ribeiro
- Heart Institute (InCor), University of São Paulo Medical School, São Paulo, Brazil
| | - Roberto Kalil Filho
- Heart Institute (InCor), University of São Paulo Medical School, São Paulo, Brazil
| | - Thomas R. Porter
- University of Nebraska Medical Center, Omaha, United States of America
| | - Wilson Mathias
- Heart Institute (InCor), University of São Paulo Medical School, São Paulo, Brazil
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12
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Di Bella G, Pingitore A, Piaggi P, Pizzino F, Barison A, Terrizzi A, d'angelo M, Todiere G, Quattrocchi S, Carerj S, Emdin M, Aquaro GD. Usefulness of late gadolinium enhancement MRI combined with stress imaging in predictive significant coronary stenosis in new-diagnosed left ventricular dysfunction. Int J Cardiol 2016; 224:337-342. [PMID: 27668708 DOI: 10.1016/j.ijcard.2016.09.039] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Revised: 08/29/2016] [Accepted: 09/15/2016] [Indexed: 01/19/2023]
Abstract
BACKGROUND To evaluate the accuracy of late gadolinium enhancement (LGE) cardiac magnetic resonance (CMR) and imaging stress test in predicting significant coronary artery disease (CAD) in left ventricular (LV) dysfunction. METHODS We enrolled 187 consecutive out-patients (61±17years) with new evidence of depressed (<45%) ejection fraction and no history of previous heart diseases and absence of Q-waves. All patients underwent coronary angiography (CA) and to LGE-CMR examination to identify ischemic and non-ischemic LGE. All patients underwent stress imaging to determine the presence of myocardial ischemia. RESULTS Ischemic-LGE was found in 83 patients and non-ischemic-LGE in 104. Significant CAD on CA was found in 86/187 patients. Ischemic-LGE showed a specificity of 94%, a sensitivity of 89% and an accuracy of 92% in identifying significant CAD. Imaging stress test was negative in 98/105 patients without CAD, and positive in 42/82 with significant CAD, showing a specificity of 93%, a sensitivity of 51% and an accuracy of 75% in identifying CAD. Combining CMR and stress test imaging, 94 patients had ischemic-LGE pattern and/or positive stress test for ischemia; of these 81/94 had significant CAD on CA and 13 had no CAD. Among the 93 patients with both tests negative, significant CAD was found in 5/93 patients. The combination of LGE and stress respect to only LGE did not improve the diagnostic accuracy (90 vs 92% respectively). CONCLUSION LGE-CMR had high accuracy in predicting significant CAD in ischemic LV dysfunction or as a bystander in non ischemic dysfunction.
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Affiliation(s)
- Gianluca Di Bella
- CNR, Institute of Clinical Physiology, Pisa, Italy; Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy.
| | | | - Paolo Piaggi
- Section of Endocrinology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Fausto Pizzino
- Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
| | - Andrea Barison
- Fondazione Toscana G. Monasterio, CNR - Regione Toscana, Pisa, Italy
| | - Anna Terrizzi
- Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
| | - Miriam d'angelo
- Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
| | - Giancarlo Todiere
- Fondazione Toscana G. Monasterio, CNR - Regione Toscana, Pisa, Italy
| | - Salvina Quattrocchi
- Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
| | - Scipione Carerj
- Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
| | - Michele Emdin
- Fondazione Toscana G. Monasterio, CNR - Regione Toscana, Pisa, Italy
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Ejlersen JA, Poulsen SH, Mortensen J, May O. A comparison of the diagnostic value of 2D strain stress echocardiography, myocardial perfusion scintigraphy, and Duke treadmill score in patients suspected of coronary artery disease. Echocardiography 2016; 33:1523-1531. [DOI: 10.1111/echo.13297] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Affiliation(s)
- June A. Ejlersen
- Cardiovascular Research Unit; Regional Hospital Herning; Herning Denmark
- Department of Nuclear Medicine; Regional Hospital Herning; Herning Denmark
| | - Steen H. Poulsen
- Department of Cardiology; Skejby University Hospital; Aarhus Denmark
| | - Jesper Mortensen
- Department of Nuclear Medicine; Regional Hospital Herning; Herning Denmark
| | - Ole May
- Cardiovascular Research Unit; Regional Hospital Herning; Herning Denmark
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van der Sijde JN, Boiten HJ, van Domburg RT, Schinkel AF. Long-Term (>10 Years) Prognostic Value of Dobutamine Stress Echocardiography in a High-Risk Cohort. Am J Cardiol 2016; 117:1078-83. [PMID: 26839054 DOI: 10.1016/j.amjcard.2016.01.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Revised: 01/07/2016] [Accepted: 01/07/2016] [Indexed: 09/30/2022]
Abstract
The prognostic value of dobutamine stress echocardiography (DSE) at >10-year follow-up is unknown. The aim of this study was to assess the very long-term prognostic value of DSE in a high-risk cohort of patients with known or suspected coronary artery disease. This prospective, single-center study included 3,381 patients who underwent DSE from January 1990 to January 2003. Two-dimensional echocardiographic images were acquired at rest, during dobutamine stress, and during recovery. Follow-up events were collected and included overall mortality, cardiac death, nonfatal myocardial infarction, and revascularization. The incremental value of DSE in the prediction of selected end points was evaluated using multivariate Cox proportional hazard analysis. During a mean follow-up of 13 ± 3.2 years (range 7.3 to 20.5 years), there were 1,725 deaths (51%), of which 1,128 (33%) were attributed to cardiac causes. Patients with an abnormal DSE had a higher mortality rate (44% vs 35% at 15-year follow-up, p <0.001) than those with a normal DSE. When comparing echocardiographic variables at rest to variables at maximum dose dobutamine, the chi-square of the test improved from 842 to 870 (p <0.0001) and from 684 to 740 (p <0.0001) for all-cause mortality and cardiac death, respectively. DSE provided incremental value in predicting all-cause mortality, cardiac death, and hard cardiac events. There seems, however, to be a "warranty period" of approximately 7 years, when the survival curves of a normal and abnormal DSE no longer diverge.
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15
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Coronary Flow Velocity Reserve during Pharmacologic Stress Echocardiography with Normal Contractility Adds Important Prognostic Value in Diabetic and Nondiabetic Patients. J Am Soc Echocardiogr 2014; 27:1113-9. [DOI: 10.1016/j.echo.2014.05.009] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2014] [Indexed: 11/17/2022]
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16
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Sade LE, Eroğlu S, Yüce D, Bircan A, Pirat B, Sezgin A, Aydınalp A, Müderrisoğlu H. Follow-Up of Heart Transplant Recipients with Serial Echocardiographic Coronary Flow Reserve and Dobutamine Stress Echocardiography to Detect Cardiac Allograft Vasculopathy. J Am Soc Echocardiogr 2014; 27:531-9. [DOI: 10.1016/j.echo.2014.01.020] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2012] [Indexed: 01/08/2023]
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17
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Bikiri E, Mereles D, Voss A, Greiner S, Hess A, Buss SJ, Hofmann NP, Giannitsis E, Katus HA, Korosoglou G. Dobutamine stress cardiac magnetic resonance versus echocardiography for the assessment of outcome in patients with suspected or known coronary artery disease. Are the two imaging modalities comparable? Int J Cardiol 2014; 171:153-60. [DOI: 10.1016/j.ijcard.2013.11.038] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2013] [Revised: 11/12/2013] [Accepted: 11/17/2013] [Indexed: 12/01/2022]
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18
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Shaikh K, Wang DD, Saad H, Alam M, Khandelwal A, Brooks K, Iyer H, Nguyen P, Boedeker S, Ananthasubramaniam K. Feasibility, safety and accuracy of regadenoson-atropine (REGAT) stress echocardiography for the diagnosis of coronary artery disease: an angiographic correlative study. Int J Cardiovasc Imaging 2014; 30:515-22. [PMID: 24463854 DOI: 10.1007/s10554-014-0363-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2013] [Accepted: 01/04/2014] [Indexed: 11/25/2022]
Abstract
Regadenoson (REG), a selective A2A receptor vasodilator, has not been widely evaluated in stress echocardiography (SE). We report results of 45 patients participating in REG + atropine (REGAT) SE protocol conducted in a single-center prospective trial. The REGAT study enrolled subjects before a clinically indicated cardiac catheterization for suspected coronary artery disease (CAD). After rest imaging, a 2 mg Atropine (AT) bolus followed by 400 mcg of REG was given. Standard stress imaging views were obtained and interpreted in blinded fashion. Sensitivity, specificity, positive and negative predictive values (PPV, NPV) were calculated using cardiac catheterization >70 % stenosis as gold standard. Additional endpoints included major adverse cardiac events (MACE) and patient questionnaire responses. The mean duration of REGAT was 18 ± 7.2 min. There were no MACE, with only transient side-effects of dry mouth, shortness of breath, and headache. The incidence of significant CAD was 51.1 %. The sensitivity and specificity for significant stenosis was 60.9 and 86.4 %, with a PPV and NPV of 82.4 and 67.9 %. By coronary territories, the sensitivity, specificity, PPV, and NPV were: left anterior descending artery 58.8, 92.9, 83.3, and 78.8 %; left circumflex artery 6.7, 93.3, 33.3, and 67.7 %; and right coronary artery 16.7, 93.9, 50, and 75.6 %. Over 90 % of subjects reported feeling comfortable, with 83 % preferring REGAT as a future stress modality. The REGAT protocol is fast, safe, and well-tolerated with good specificity for CAD detection, but its low sensitivity and NPV precludes it from being an imaging modality for routine use.
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Affiliation(s)
- Kamran Shaikh
- Seton Heart Institute, Seton Medical Center, Kyle, TX, 78640, USA
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19
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Abstract
Stress echocardiography is the combination of 2D echocardiography with a physical, pharmacological or electrical stress. The diagnostic end point for the detection of myocardial ischemia is the induction of a transient worsening in regional function during stress. Stress echocardiography provides similar diagnostic and prognostic accuracy as radionuclide stress perfusion imaging but at a substantially lower cost, without environmental impact and with no biohazards for the patient and the physician. In spite of its dependence upon operator's training, it is the best possible choice to achieve the still elusive target of sustainable cardiac imaging in the field of noninvasive diagnosis of coronary artery disease.
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20
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Mattoso AA, Kowatsch I, Tsutsui JM, de la Cruz VY, Ribeiro HB, Sbano JC, Ramires JA, Kalil Filho R, Porter TR, Mathias W. Prognostic Value of Qualitative and Quantitative Vasodilator Stress Myocardial Perfusion Echocardiography in Patients with Known or Suspected Coronary Artery Disease. J Am Soc Echocardiogr 2013; 26:539-47. [DOI: 10.1016/j.echo.2013.01.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2012] [Indexed: 10/27/2022]
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Feng S, Jiang J, Hu P, Zhang JY, Liu T, Zhao Q, Li BL. A phase I study on pharmacokinetics and pharmacodynamics of higenamine in healthy Chinese subjects. Acta Pharmacol Sin 2012; 33:1353-8. [PMID: 23085737 PMCID: PMC4011356 DOI: 10.1038/aps.2012.114] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2012] [Accepted: 07/13/2012] [Indexed: 01/05/2023] Open
Abstract
AIM To investigate the pharmacokinetics, pharmacodynamics, and safety of higenamine, an active ingredient of Aconite root, in healthy Chinese volunteers. METHODS Ten subjects received continuous, intravenous infusion of higenamine at gradually escalating doses from 0.5 to 4.0 μg·kg(-1)·min(-1), each dose was given for 3 min. Blood and urine samples were collected at designated time points to measure the concentrations of higenamine. Pharmacodynamics was assessed by measuring the subject's heart rate. A nonlinear mixed-effect modeling approach, using the software Phoenix NLME, was used to model the plasma concentration-time profiles and heart rate. RESULTS Peak concentrations (C(max)) of higenamine ranged from 15.1 to 44.0 ng/mL. The half-life of higenamine was 0.133 h (range, 0.107-0.166 h), while the area under concentration-time curve (AUC), extrapolated to infinity, was 5.39 ng·h·mL(-1) (range, 3.2-6.8 ng·h·mL(-1)). The volume of distribution (V) was 48 L (range, 30.8-80.6 L). The total clearance (CL) was 249 L/h (range, 199-336 L/h). Within 8 h, 9.3% (range, 4.6%-12.4%) of higenamine was recovered in the urine. The pharmacokinetics of higenamine was successfully described using a two-compartment model with nonlinear clearance. In the pharmacodynamic model, heart rates were related to the plasma drug concentrations using a simple direct effect model with baseline. The E(0), E(max), and EC(50) were 68 bpm, 73 bpm and 8.1 μg/L, respectively. CONCLUSION Higenamine has desirable pharmacokinetic and pharmacodynamic characteristics. The results provide important information for future clinical studies on higenamine.
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Affiliation(s)
- Sheng Feng
- Clinical Pharmacology Research Center, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China
| | - Ji Jiang
- Clinical Pharmacology Research Center, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China
| | - Pei Hu
- Clinical Pharmacology Research Center, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China
| | - Jian-yan Zhang
- Clinical Pharmacology Research Center, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China
| | - Tao Liu
- Clinical Pharmacology Research Center, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China
| | - Qian Zhao
- Clinical Pharmacology Research Center, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China
| | - Bi-lu Li
- Zhuhai Rundu Pharmaceutical Co, Ltd, Guangzhou 510620, China
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22
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Hong GR, Park JS, Lee SH, Shin DG, Kim U, Choi JH, Abdelmalik R, Vera JA, Kim JK, Narula J, Vannan MA. Prognostic value of real time dobutamine stress myocardial contrast echocardiography in patients with chest pain syndrome. Int J Cardiovasc Imaging 2011; 27 Suppl 1:103-12. [PMID: 22143170 DOI: 10.1007/s10554-011-9976-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2011] [Accepted: 11/02/2011] [Indexed: 11/26/2022]
Abstract
The aims of this study were (1) to evaluate the prognostic value of negative wall motion (WM) and myocardial perfusion during contrast-dobutamine stress echocardiography (DSE), (2) to determine whether WM-myocardial contrast echocardiography (MCE) had incremental prognostic value over just WM during DSE in patients with chest pain in the emergency room (ER), and (3) to compare the prognostic value of negative DSE-WM, and DSE-WM-MCE to nuclear-myocardial perfusion imaging (N-MPI) in a similar patient population over the same time period. We retrospectively studied 569 patients with real time contrast DSE, and 147 patients underwent N-MPI for evaluation of chest pain. Follow-up for cardiac events was obtained between 12 and 25 months. The cumulative cardiac event-free survival was 94.5% in negative DSE-WM, 97.1% in negative DSE-WM-MCE and 96.7% in negative N-MPI group. Cardiac event-free survival of the negative DSE-WM-MCE group was significantly higher than the DSE-WM group (log rank P < 0.01), and similar in the DSE-WM-MCE group compared to the N-MPI group. Combined WM and perfusion during DSE was the strongest independent predictor for cardiac events. The negative predictive power of DSE-WM-MCE is superior to that of just negative DSE-WM and is comparable to that of N-MPI. Myocardial perfusion and WM analysis during DSE provide independent information for predicting cardiac events in patients with chest pain syndrome in the ER.
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Affiliation(s)
- Geu-Ru Hong
- Division of Cardiology, Yeungnam University College of Medicine, Daegu, Korea
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Affiliation(s)
- Jonathan R. Lindner
- From the Division of Cardiovascular Medicine and Department of Biomedical Engineering, Oregon Health & Science University, Portland, OR
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Szymanski C, Pierard L, Lancellotti P. Imaging techniques in coronary atherosclerotic disease: dobutamine stress echocardiography--evidence and perspectives. J Cardiovasc Med (Hagerstown) 2011; 12:543-53. [PMID: 21709580 DOI: 10.2459/jcm.0b013e32834853f8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Dobutamine stress echocardiography is the most widely disseminated noninvasive technique for the assessment of coronary artery disease. Its results are important for clinical decisions. It is a versatile technique with high sensitivity and specificity for detecting viable myocardium at jeopardy. More recently, strain rate imaging has been applied to stress echocardiography. This approach relies on tissue Doppler or two-dimensional strain imaging to quantify myocardial deformation. The application of contrast echocardiographic techniques to stress echocardiography enables left ventricular opacification for border enhancement and myocardial perfusion imaging. Thus, this application is not limited to stress echocardiography, but has utility whenever image quality adversely affects wall motion assessment. Recently, three-dimensional stress echocardiography imaging has been proposed as an alternative approach to assess myocardial ischemia.
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Affiliation(s)
- Catherine Szymanski
- Department of Cardiology, Heart Valve Clinic, University of Liège, Liege, Belgium
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Rivera RF, Mircoli L, Bonforte G, Torri V, Monteforte M, Stella A, Genovesi S. Dipyridamole stress echocardiography in diagnosis and prognosis of hemodialysis patients with asymptomatic coronary disease. Hemodial Int 2011; 15:468-76. [PMID: 22111815 DOI: 10.1111/j.1542-4758.2011.00572.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2011] [Revised: 06/01/2011] [Indexed: 01/28/2023]
Abstract
The prevalence of coronary artery disease (CAD) is high in hemodialysis (HD) patients. The aim of the study was to assess the diagnostic and prognostic value of dipyridamole stress echocardiography (DSE) in nondiabetic HD patients without signs or symptoms of CAD. In 51 out of 158 evaluated HD patients (21 females, age 67 [33-85] years, HD duration 38 [9-271] months), resting echocardiography and DSE were performed. Exclusion criteria were known CAD, diabetes mellitus, and pulmonary and oncologic pathologies. Logistic regression analysis was carried out to identify predictors of abnormal DSE response, while Cox regression analysis was performed to determine variables associated with total and cardiovascular mortality, after 43.3 (11-60) months of follow-up. Seven patients (14%) showed a positive response to DSE (DSE+). In 5/7, CAD was documented by angiography: All of them underwent coronary revascularization. DSE+ patients had significantly smaller body mass index than patients with a negative response (DSE-): 21.7 ± 1.9 vs. 25.1 ± 3.4 kg/m(2) (p = 0.018). During follow-up, 16 (31%) patients died. Older age hazard ratio [HR = 1.07; confidence interval (CI) = 1.01-1.12; p = 0.02] and higher plasma phosphate levels (HR = 10.41; CI = 2.30-47.17; p < 0.01) were predictors of total mortality. Male gender (HR = 22.7; CI = 1.45-354.4; p = 0.03), older age (HR = 1.24; CI = 1.03-1.50; p = 0.02), longer HD duration (HR = 1.13; CI = 1.01-1.26; p = 0.04), and positive response to DSE (HR = 5.82; CI = 1.04-32.65; p = 0.04) were associated with cardiovascular mortality. Ten percent of asymptomatic HD patients had significant CAD, but timely diagnosis did not seem to improve their prognosis. Total survival was associated with age and higher levels of plasma phosphate, while male gender, older age, longer HD duration, and DSE+ were predictors of cardiovascular mortality.
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Affiliation(s)
- Rodolfo F Rivera
- Dipartimento di Medicina Clinica e Prevenzione, Università degli Studi di Milano Bicocca, Milan, Italy
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26
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Fine NM, Pellikka PA. Stress echocardiography for the detection and assessment of coronary artery disease. J Nucl Cardiol 2011; 18:501-15. [PMID: 21431999 DOI: 10.1007/s12350-011-9365-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Nowell M Fine
- Division of Cardiovascular Diseases, Department of Internal Medicine, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA
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Cortigiani L, Rigo F, Gherardi S, Galderisi M, Bovenzi F, Picano E, Sicari R. Prognostic effect of coronary flow reserve in women versus men with chest pain syndrome and normal dipyridamole stress echocardiography. Am J Cardiol 2011; 106:1703-8. [PMID: 21126613 DOI: 10.1016/j.amjcard.2010.08.011] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2010] [Revised: 08/11/2010] [Accepted: 08/11/2010] [Indexed: 02/06/2023]
Abstract
The aim of this study was to investigate the prognostic effect of coronary flow reserve (CFR) on left anterior descending artery (LAD) in women and men with chest pain of unknown origin and normal stress echocardiogram. The study population consisted of 1,660 patients (906 women, 754 men) with chest pain syndrome, no wall motion abnormality on echocardiogram at rest, and dipyridamole (up to 0.84 mg/kg over 6 minutes) stress echocardiogram negative for wall motion criteria. All had undergone stress echocardiography with combined evaluation of CFR on LAD by Doppler. A CFR value ≤2.0 was considered abnormal. Median duration of follow-up was 19 months (interquartile range 10 to 34). Abnormal CFR was assessed in 171 women (19%) and 147 men (19%, p = 0.80). During follow-up, 80 events (20 deaths, 13 ST-elevation myocardial infarctions, and 47 non-ST-elevation myocardial infarctions) occurred. In addition, 128 patients underwent revascularization and were censored. CFR ≤2.0 on LAD was independently associated with prognosis in women (hazard ratio [HR] 16.48, 95% confidence interval [CI] 7.17 to 37.85, p <0.0001) and in men (HR 6.23, 95% CI 3.42 to 11.33, p <0.0001). Antianginal therapy at time of testing (HR 2.11, 95% CI 1.14 to 3.90, p = 0.02) was also a multivariable prognostic predictor in men. Four-year event rate associated with CFR values ≤2.0 and >2.0 were, respectively, 27% and 2% in women (p <0.0001) and 42% and 8% in men (p <0.0001). In conclusion, decreased CFR on LAD is associated with markedly increased risk in women and men with chest pain syndrome and a normal result of dipyridamole stress echocardiography. Conversely, preserved CFR on LAD predicts excellent survival, particularly in women.
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Cortigiani L, Bigi R, Sicari R, Landi P, Bovenzi F, Picano E. Stress echocardiography for the risk stratification of patients following coronary bypass surgery. Int J Cardiol 2010; 143:337-42. [DOI: 10.1016/j.ijcard.2009.03.063] [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: 09/08/2008] [Revised: 01/08/2009] [Accepted: 03/10/2009] [Indexed: 10/21/2022]
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Nagel E. Taking the last hurdles: magnetic resonance myocardial perfusion imaging. JACC Cardiovasc Imaging 2009; 2:434-6. [PMID: 19580725 DOI: 10.1016/j.jcmg.2008.12.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2008] [Accepted: 12/19/2008] [Indexed: 01/26/2023]
Affiliation(s)
- Eike Nagel
- Division of Imaging Sciences, King's College London, London, UK.
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Chow BJW, Al Shammeri OM, Beanlands RS, Chen L, deKemp RA, DaSilva J, Ruddy TD. Prognostic value of treadmill exercise and dobutamine stress positron emission tomography. Can J Cardiol 2009; 25:e220-4. [PMID: 19584976 DOI: 10.1016/s0828-282x(09)70505-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Although positron emission tomography (PET) is routinely performed using vasodilator stress, exercise and dobutamine stress are available alternatives. Evidence suggests that vasodilator PET myocardial perfusion imaging (MPI) has prognostic value, but the prognostic value of treadmill exercise and dobutamine PET MPI is unknown. OBJECTIVE To determine the potential prognostic value of nonvasodilator stress PET MPI. METHODS Patients underwent treadmill exercise or dobutamine PET MPI. Images were assessed qualitatively and semiquantitatively. PET results were categorized as normal (summed stress score [SSS] of less than 4), abnormal (SSS of 4 or greater) or inconclusive (SSS of less than 4 and submaximal peak stress heart rate). Patient follow-up (cardiac death, nonfatal myocardial infarction [MI] and/or late revascularization) was performed. RESULTS Of the 124 patients (mean follow-up period of 2.3+/-1.6 years), 46 patients (37%) had a normal study, 15 patients (12%) had an inconclusive study and 63 (51%) had an abnormal PET. Patients with a normal PET had no deaths or nonfatal MI. One patient with a normal PET underwent late revascularization (annual event rate of 1.7%). Patients with an abnormal PET had 15 cardiac events (one cardiac death, four nonfatal MIs and 10 late revascularizations), with an annual event rate of 13.0% (P=0.002). CONCLUSIONS Although small, the present study suggests that defects seen on PET myocardial perfusion, resulting from stressors (treadmill exercise and dobutamine) that increase myocardial oxygen demand, may have prognostic value.
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Affiliation(s)
- Benjamin J W Chow
- Department of Medicine (Cardiology and Nuclear Medicine), University of Ottawa Heart Institute, Ottawa, Ontario K1Y 4W7, Canada.
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Gimelli A, Rossi G, Landi P, Marzullo P, Iervasi G, L'abbate A, Rovai D. Stress/Rest Myocardial Perfusion Abnormalities by Gated SPECT: Still the Best Predictor of Cardiac Events in Stable Ischemic Heart Disease. J Nucl Med 2009; 50:546-53. [PMID: 19289433 DOI: 10.2967/jnumed.108.055954] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
UNLABELLED The prognostic power of myocardial perfusion imaging in patients with ischemic heart disease (IHD) has been demonstrated since planar imaging. We aimed to investigate whether gated SPECT retains this value in current cardiology if compared with a complete diagnostic work-up and with more recent prognostic indicators. METHODS We selected from our database a cohort of 676 consecutive inpatients who underwent a complete diagnostic work-up that included gated SPECT and coronary arteriography for known or suspected IHD. Patients with acute myocardial infarction (MI), previous coronary artery bypass surgery, or overt hyperthyroidism and patients who were undergoing dialysis treatment were excluded. During follow-up (median, 37 mo), 24 patients died from cardiac causes and 19 experienced a nonfatal MI. RESULTS The following were determined to be independent predictors of event-free survival (cardiac death and nonfatal MI) in the different phases of diagnostic work-up using Cox proportional hazards regression analysis: among clinical variables, a previous MI; among laboratory examinations, serum creatinine and low-density lipoprotein (LDL) and high-density lipoprotein (HDL) cholesterol levels; among electrocardiographic and echocardiographic variables, left ventricular ejection fraction; and among SPECT variables, summed rest score (SRS) and summed difference score (SDS). In addition, a score of coronary stenoses at angiography was an independent predictor. When the above predictors were tested together, SRS (P < 0.0001), SDS (P = 0.0108), and serum creatinine (P = 0.0186) and LDL and HDL cholesterol levels (P = 0.0222) were the final independent predictors of event-free survival. When gated SPECT was added to the clinical, laboratory, electrocardiographic, and echocardiographic variables, the prognostic stratification significantly improved (P < 0.05); when coronary arteriography was added to gated SPECT, prognostic stratification did not further improve (P > 0.25). If the information provided by gated SPECT was made available after clinical, laboratory, electrocardiographic, echocardiographic, and angiographic variables, the prognostic stratification still improved significantly (P < 0.05). In 492 of these patients with ascertained IHD, SRS and SDS were the final independent predictors of survival. Medical treatment and coronary revascularization did not affect the prognostic information of gated SPECT. CONCLUSION Myocardial perfusion abnormalities at rest and after stress are still the best predictors of cardiac event-free survival in patients with known or suspected IHD, even when compared with an extensive diagnostic work-up.
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Affiliation(s)
- Alessia Gimelli
- CNR Clinical Physiology Institute, G. Monasterio Foundation, Pisa, Italy.
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Cortigiani L, Sicari R, Bigi R, Landi P, Bovenzi F, Picano E. Impact of gender on risk stratification by stress echocardiography. Am J Med 2009; 122:301-9. [PMID: 19272491 DOI: 10.1016/j.amjmed.2008.11.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2008] [Revised: 11/03/2008] [Accepted: 11/06/2008] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To compare the prognostic value of stress echocardiography results in men and women with known and suspected coronary artery disease. METHODS We analyzed the data of 8737 patients (5529 men and 3208 women) who underwent stress echocardiography (exercise in 523 patients, dipyridamole in 6227 patients, dobutamine in 1987) for evaluating known (n=3857) or suspected (n=4880) coronary artery disease. Patients were followed up for the occurrence of overall mortality or nonfatal myocardial infarction. RESULTS During a median follow-up of 25 months, 1218 cardiac events (693 deaths and 525 infarctions) occurred. Moreover, 2263 patients (1731 men [31%] and 532 women [17%]; P<.0001) underwent coronary revascularization and were censored. Stress echocardiography results added prognostic information to that of clinical findings and resting wall motion score index in men and women with both known and suspected coronary artery disease. In patients with known coronary artery disease, women had a higher (P=.01) event rate than men in the presence of ischemia. The annual event rate was worse for nondiabetic women (P=.007) but not diabetic women; age had a neutral prognostic effect in the 2 sexes. In patients with suspected coronary artery disease, men without ischemia had a higher (P<.0001) event rate than women. The annual event rate was worse in men aged less than 65 years (P<.0001) or more than 65 years (P=.04), and those with (P=.03) or without (P<.0001) diabetes. CONCLUSION Prognosis is at least comparable in men and women with ischemia and in those with coronary artery disease and no ischemia at stress echocardiography. In these clinical settings, availability for major procedures should be similar for both genders.
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Tsutsui JM, Dourado PMM, Falcão SNRS, Figueiredo M, Guerra VC, Chagas ACP, Daluz PL, Ramires JAF, Mathias W. Prognostic value of dobutamine stress echocardiography with early injection of atropine with versus without chronic beta-blocker therapy in patients with known or suspected coronary heart disease. Am J Cardiol 2008; 102:1291-5. [PMID: 18993143 DOI: 10.1016/j.amjcard.2008.07.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2008] [Revised: 07/13/2008] [Accepted: 07/13/2008] [Indexed: 11/28/2022]
Abstract
Although a new protocol of dobutamine stress echocardiography with the early injection of atropine (EA-DSE) has been demonstrated to be useful in reducing adverse effects and increasing the number of effective tests and to have similar accuracy for detecting coronary artery disease (CAD) compared with conventional protocols, no data exist regarding its ability to predict long-term events. The aim of this study was to determine the prognostic value of EA-DSE and the effects of the long-term use of beta blockers on it. A retrospective evaluation of 844 patients who underwent EA-DSE for known or suspected CAD was performed; 309 (37%) were receiving beta blockers. During a median follow-up period of 24 months, 102 events (12%) occurred. On univariate analysis, predictors of events were the ejection fraction (p <0.001), male gender (p <0.001), previous myocardial infarction (p <0.001), angiotensin-converting enzyme inhibitor therapy (p = 0.021), calcium channel blocker therapy (p = 0.034), and abnormal results on EA-DSE (p <0.001). On multivariate analysis, the independent predictors of events were male gender (relative risk [RR] 1.78, 95% confidence interval [CI] 1.13 to 2.81, p = 0.013) and abnormal results on EA-DSE (RR 4.45, 95% CI 2.84 to 7.01, p <0.0001). Normal results on EA-DSE with beta blockers were associated with a nonsignificant higher incidence of events than normal results on EA-DSE without beta blockers (RR 1.29, 95% CI 0.58 to 2.87, p = 0.54). Abnormal results on EA-DSE with beta blockers had an RR of 4.97 (95% CI 2.79 to 8.87, p <0.001) compared with normal results, while abnormal results on EA-DSE without beta blockers had an RR of 5.96 (95% CI 3.41 to 10.44, p <0.001) for events, with no difference between groups (p = 0.36). In conclusion, the detection of fixed or inducible wall motion abnormalities during EA-DSE was an independent predictor of long-term events in patients with known or suspected CAD. The prognostic value of EA-DSE was not affected by the long-term use of beta blockers.
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Affiliation(s)
- Jeane M Tsutsui
- Heart Institute (InCor), University of São Paulo Medical School, São Paulo, Brazil.
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Cortigiani L, Sicari R, Bigi R, Gherardi S, Rigo F, Gianfaldoni ML, Landi P, Bovenzi F, Picano E. Usefulness of stress echocardiography for risk stratification of patients after percutaneous coronary intervention. Am J Cardiol 2008; 102:1170-4. [PMID: 18940286 DOI: 10.1016/j.amjcard.2008.06.041] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2008] [Revised: 06/30/2008] [Accepted: 06/30/2008] [Indexed: 10/21/2022]
Abstract
The prognostic value of stress echocardiography in patients with previous percutaneous coronary intervention (PCI) remains undefined. The aim of this study was to investigate the prognostic implication of stress echocardiography after PCI. The study group comprised 1,063 patients (794 men, 65 +/- 10 years of age) who underwent stress echocardiography with exercise (n = 105), dipyridamole (n = 780), or dobutamine (n = 178) after a median of 10 months from a successful PCI. Of these patients, 616 (58%) complained of chest pain and 447 (42%) were asymptomatic. Stress echocardiogram was positive for inducible ischemia in 328 patients (31%). During a median follow-up of 20 months, there were 167 events (61 deaths, 106 infarctions). Independent predictors of mortality were age (hazard ratio [HR] 1.06, 95% confidence interval [CI] 1.03 to 1.09, p <0.0001), wall motion score index at rest (HR 3.91, 95% CI 2.19 to 6.99, p <0.0001), and ischemia at stress echocardiography (HR 1.82, 95% CI 1.05 to 3.16, p = 0.03). Five-year mortalities were 20% in patients with and 9% in those without ischemia (p = 0.006). Independent predictors of hard events were ischemia at stress echocardiography (HR 3.82, 95% CI 2.75 to 5.29, p <0.0001), age (HR 1.02, 95% CI 1.01 to 1.04, p = 0.009), wall motion score index at rest (HR 1.98, 95% CI 1.30 to 3.02, p = 0.002), multivessel disease at time of PCI (HR 1.45, 95% CI 1.05 to 2.02, p = 0.02), and female gender (HR 1.44, 95% CI 1.03 to 2.01, p = 0.03). Five-year hard event rates were 53% in patients with and 16% in those without ischemia (p <0.0001). Stress echocardiographic positivity added prognostic information to clinical and at-rest echocardiographic parameters in symptomatic and asymptomatic patients. Moreover, it identified a subset of patients at higher risk of developing hard events independent of the subtending coronary anatomy (multivessel or single vessel disease). In conclusion, stress echocardiography is effective in risk-stratifying patients with previous PCI. In particular, inducible ischemia is a strong and independent predictor of mortality and hard events.
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Turiel M, Sitia S, Tomasoni L, Cicala S, Viganò SM, Menegotto A, Martina V, Bodini BD, Bacchiani G, Ghio L, Cusi D. Subclinical impairment of coronary flow velocity reserve assessed by transthoracic echocardiography in young renal transplant recipients. Atherosclerosis 2008; 204:435-9. [PMID: 19059594 DOI: 10.1016/j.atherosclerosis.2008.09.036] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2008] [Revised: 09/29/2008] [Accepted: 09/30/2008] [Indexed: 11/16/2022]
Abstract
BACKGROUND In renal transplant recipients (RTR) an increased risk to develop cardiovascular injury is present. Transthoracic Doppler echocardiographic assessment of coronary flow velocity reserve (CFVR), a sensitive and minimally invasive technique, was recently employed to detect both macrovascular and microvascular coronary artery disease (CAD) in different clinical settings. The prevalence of coronary involvement in young adult RTR is still unknown. The aim of the study was to investigate the presence of early cardiovascular damage in asymptomatic young adult RTR. METHODS Transthoracic Doppler echocardiographic-derived CFVR and common carotid intima-media thickness (IMT) were assessed in 25 asymptomatic young adult RTR (mean age 25.7+/-7.0 years; range 17.3-43.9) without CAD and 25 healthy controls. RESULTS CFVR was lower in young adult RTR compared to controls (2.8+/-0.6 vs. 3.5+/-0.8; P<0.001), meanwhile left ventricular wall motion and common carotid IMT were comparable in both groups. We found a negative correlation between CFVR and age (r=-0.50; P=0.018) and months on dialysis (r=-0.54; P<0.01). CONCLUSIONS Young adult RTR showed a reduced CFVR reflecting an impaired coronary microcirculation, which is significantly related to the age and duration of dialysis; coronary microvascular damage is detectable in the absence of changes in common carotid IMT. Non-invasive evaluation of CFVR by transthoracic stress echocardiography could be a reliable method for identification of early coronary microvascular involvement in young adult RTR.
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Affiliation(s)
- Maurizio Turiel
- Cardiology Unit, Department of Health Technologies, IRCCS Galeazzi Orthopedic Institute, University of Milan, Milan, Italy.
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Ikonomidis I, Athanassopoulos G, Stamatelopoulos K, Lekakis J, Revela I, Venetsanou K, Marinou M, Monaco C, Cokkinos DV, Nihoyannopoulos P. Additive prognostic value of interleukin-6 at peak phase of dobutamine stress echocardiography in patients with coronary artery disease. A 6-year follow-up study. Am Heart J 2008; 156:269-76. [PMID: 18657656 DOI: 10.1016/j.ahj.2008.03.020] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2008] [Accepted: 03/20/2008] [Indexed: 01/13/2023]
Abstract
BACKGROUND Interleukin-6 (IL-6) and tissue factor (TF) are elevated after myocardial ischemia during dobutamine stress echo (DSE). We examined the incremental prognostic value of IL-6 or TF measured during DSE over echocardiographic and clinical factors in patients with chronic coronary artery disease (CAD). METHODS We studied 106 patients with angiographically documented CAD. IL-6 and TF were measured at rest, peak, and during recovery. A wall motion score index was calculated. RESULTS Fifty-seven (54%) patients had ischemia at DSE. During follow-up (63.7 +/- 20 months), 36 patients (33%) had an adverse event (12 cardiac deaths, 24 acute coronary events). Patients with events had a higher peak IL-6 (P = .02) but similar rest and recovery IL-6 than those without. Patients with peak IL-6 > or =3.14 pg/mL (upper tertile) had a hazard ratio of 2.7 (95% CI 1.44-5.37) (P < .01 for an adverse event). The addition of peak wall motion score index in a multivariable model including risk factors, ejection fraction, revascularization, and multivessel disease increased the model's c statistic from 0.66 to 0.70 (P = .04). The addition of peak IL-6 further increased the model's c statistic to 0.75 (P = .04). Tissue factor was not related with cardiac events. CONCLUSIONS Interleuikin-6 levels measured during the peak phase of DSE incrementally contribute to risk stratification in patients with chronic CAD.
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Affiliation(s)
- Ignatios Ikonomidis
- 2nd Cardiology Department, Attikon Hospital, University of Athens, Athens, Greece.
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BORDACHAR PIERRE, LABROUSSE LOUIS, PLOUX SYLVAIN, THAMBO JEANBENOIT, LAFITTE STEPHANE, REANT PATRICIA, JAIS PIERRE, HAISSAGUERRE MICHEL, CLEMENTY JACQUES, SANTOS PIERREDOS. Validation of a New Noninvasive Device for the Monitoring of Peak Endocardial Acceleration in Pigs: Implications for Optimization of Pacing Site and Configuration. J Cardiovasc Electrophysiol 2008; 19:725-9. [DOI: 10.1111/j.1540-8167.2008.01105.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Picano E, Molinaro S, Pasanisi E. The diagnostic accuracy of pharmacological stress echocardiography for the assessment of coronary artery disease: a meta-analysis. Cardiovasc Ultrasound 2008; 6:30. [PMID: 18565214 PMCID: PMC2443362 DOI: 10.1186/1476-7120-6-30] [Citation(s) in RCA: 87] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2008] [Accepted: 06/19/2008] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Recent American Heart Association/American College of Cardiology guidelines state that "dobutamine stress echo has substantially higher sensitivity than vasodilator stress echo for detection of coronary artery stenosis" while the European Society of Cardiology guidelines and the European Association of Echocardiography recommendations conclude that "the two tests have very similar applications". Who is right? AIM To evaluate the diagnostic accuracy of dobutamine versus dipyridamole stress echocardiography through an evidence-based approach. METHODS From PubMed search, we identified all papers with coronary angiographic verification and head-to-head comparison of dobutamine stress echo (40 mcg/kg/min +/- atropine) versus dipyridamole stress echo performed with state-of-the art protocols (either 0.84 mg/kg in 10' plus atropine, or 0.84 mg/kg in 6' without atropine). A total of 5 papers have been found. Pooled weight meta-analysis was performed. RESULTS the 5 analyzed papers recruited 435 patients, 299 with and 136 without angiographically assessed coronary artery disease (quantitatively assessed stenosis > 50%). Dipyridamole and dobutamine showed similar accuracy (87%, 95% confidence intervals, CI, 83-90, vs. 84%, CI, 80-88, p = 0.48), sensitivity (85%, CI 80-89, vs. 86%, CI 78-91, p = 0.81) and specificity (89%, CI 82-94 vs. 86%, CI 75-89, p = 0.15). CONCLUSION When state-of-the art protocols are considered, dipyridamole and dobutamine stress echo have similar accuracy, specificity and - most importantly - sensitivity for detection of CAD. European recommendations concluding that "dobutamine and vasodilators (at appropriately high doses) are equally potent ischemic stressors for inducing wall motion abnormalities in presence of a critical coronary artery stenosis" are evidence-based.
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Rossi A, Moccetti T, Faletra F, Cattaneo P, Rossi M, Pasotti E, Fantoni C, Anzà C, Baravelli M. Dipyridamole stress echocardiography stratifies outcomes of asymptomatic patients with recent myocardial revascularization. Int J Cardiovasc Imaging 2007; 24:495-502. [DOI: 10.1007/s10554-007-9289-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2007] [Accepted: 12/10/2007] [Indexed: 11/28/2022]
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Sicari R, Pingitore A, Aquaro G, Pasanisi EG, Lombardi M, Picano E. Cardiac functional stress imaging: a sequential approach with stress echo and cardiovascular magnetic resonance. Cardiovasc Ultrasound 2007; 5:47. [PMID: 18053214 PMCID: PMC2262078 DOI: 10.1186/1476-7120-5-47] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2007] [Accepted: 12/04/2007] [Indexed: 08/30/2023] Open
Abstract
AIMS The aim of the study was to assess the feasibility and accuracy of an integrated stress imaging algorithm with echo first and second-line Cardiac Magnetic Resonance (CMR) in selected cases. Stress echo (SE) is widely used for non-invasive diagnosis of coronary artery disease (CAD), but difficult patients and ambiguous responses may be met even with top-level technology and expertise. CMR might ideally complement SE in well-selected cases with unfeasible and/or ambiguous and/or submaximal results. METHODS AND RESULTS 152 in-hospital patients with chest pain and normal baseline function were referred for SE and coronary angiography. Of the initial population, 33 were shunted to CMR due to poor acoustic window or ambiguous or submaximal SE test. The only criterion of positivity for both techniques was the presence of regional wall motion abnormalities in at least 2 contiguous segments. Coronary angiography was performed independently of test results. Significant CAD was identified by a >50% quantitatively assessed diameter reduction in at least 1 major coronary vessel.CAD was present in 88 patients. Interpretable and diagnostic stress test were obtained in 143 patients with the sequential algorithm. The sequential (SE in 110 + CMR in 33 patients) algorithm showed a sensitivity of 76% (95% CI 66% to 85%) specificity of 87% (95% CI 76% to 95%) and accuracy of 80% (95% CI 73% to 86%). CONCLUSION A sequential functional stress imaging algorithm with stress echo first and stress CMR in selected cases is feasible, clinically realistic and allows an efficient, radiation-free diagnosis of CAD.
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Affiliation(s)
- Rosa Sicari
- CNR, Institute of Clinical Physiology, Pisa, Italy.
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Pratali L, Otasevic P, Neskovic A, Molinaro S, Picano E. Prognostic Value of Pharmacologic Stress Echocardiography in Patients With Idiopathic Dilated Cardiomyopathy: A Prospective, Head-to-Head Comparison Between Dipyridamole and Dobutamine Test. J Card Fail 2007; 13:836-42. [DOI: 10.1016/j.cardfail.2007.07.011] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2007] [Revised: 07/06/2007] [Accepted: 07/30/2007] [Indexed: 11/26/2022]
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Wake R, Takeuchi M, Yoshikawa J, Yoshiyama M. Effects of gender on prognosis of patients with known or suspected coronary artery disease undergoing contrast-enhanced dobutamine stress echocardiography. Circ J 2007; 71:1060-6. [PMID: 17587711 DOI: 10.1253/circj.71.1060] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND Gender differences in the predictors of outcome among patients with known or suspected coronary artery disease (CAD) undergoing contrast-enhanced dobutamine stress echocardiography (CE-DSE) have not been completely determined. METHODS AND RESULTS Follow-up (30+/-17 months) data for 581 men and 309 women with known or suspected CAD who underwent CE-DSE (mean age: 66 years) were obtained. Hard cardiac events included cardiac death and nonfatal myocardial infarction. Total cardiac events included hard cardiac events, unstable angina, congestive heart failure, and late revascularization (>3 months). Cardiac events occurred in 123 male and 50 female patients. Positive results for CE-DSE were associated with worse prognosis in both men and women (2-year total event free rate: 73.5% vs 88.2% in men, p<0.0001, 80.3% vs 91.3% in women, p<0.01). Addition of CE-DSE results, including abnormal left ventricular end-systolic volume response and left ventricular ejection fraction at peak stress <50%, to the clinical and rest echocardiography model provided incremental information for predicting total cardiac events (increase in chi-square value for the model from 60 to 72, p<0.001) in men and (increase in chi-square value for the model from 17 to 32, p<0.001) in women. CONCLUSIONS CE-DSE provides incremental information for predicting future cardiac events in both men and women.
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Affiliation(s)
- Ryotaro Wake
- Department of Cardiology and Internal Medicine, Osaka City University Graduate School of Medicine, Osaka, Japan.
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Cortigiani L, Bigi R, Sicari R, Landi P, Bovenzi F, Picano E. Prognostic implications of dipyridamole or dobutamine stress echocardiography for evaluation of patients > or =65 years of age with known or suspected coronary heart disease. Am J Cardiol 2007; 99:1491-5. [PMID: 17531567 DOI: 10.1016/j.amjcard.2007.01.019] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2006] [Revised: 01/10/2007] [Accepted: 01/10/2007] [Indexed: 10/23/2022]
Abstract
This study investigated the value of pharmacologic stress echocardiography for risk stratification of patients > or =65 years of age. The study cohort consisted of 2,160 patients > or =65 years of age (1,257 men, mean +/- SD 71 +/- 5 years of age) undergoing dipyridamole (n = 1,521) or dobutamine (n = 639) stress echocardiography for evaluation of known (n = 913) or suspected (n = 1,247) coronary artery disease. Of 2,160 patients, 753 (35%) had a normal test result, whereas 772 (36%) showed a myocardial ischemic pattern and 635 (29%) a scar pattern. During a median follow-up of 26 months, 241 deaths and 87 nonfatal myocardial infarctions occurred. Patients (n = 568) undergoing revascularization were censored. Of 16 analyzed variables, age (hazard ratio [HR] 1.07 per unit increment), wall motion score index at rest (HR 2.63 per unit increment), ischemia at stress echocardiography (HR 1.81), and diabetes (HR 1.57) were multivariable predictors of death, whereas age (HR 1.06 per unit increment), ischemia at stress echocardiography (HR 2.60), wall motion score index at rest (HR 1.98 per unit increment), scar pattern (HR 1.99), and diabetes (HR 1.48) were multivariable predictors of death or myocardial infarction. Using an interactive stepwise procedure, stress echocardiography showed incremental prognostic value over clinical and echocardiographic data at rest, which decreased with increasing age. In addition, the annual hard event rate associated with a normal test result progressively increased with age. In conclusion, pharmacologic stress echocardiography provides useful prognostic information in patients > or =65 years of age. However, its prognostic value decreases with increasing age.
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Caiani EG, Magagnin V, Champlon C, Delfino L, Llambro M, Turiel M. Quantification of coronary flow velocity reserve by means of semiautomated analysis of coronary flow Doppler images. CONFERENCE PROCEEDINGS : ... ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL CONFERENCE 2007; 2004:1401-2. [PMID: 17271955 DOI: 10.1109/iembs.2004.1403435] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Coronary flow reserve (CFVR) is conventionally obtained by manual tracings of Doppler profiles, as ratio of control vs stress diastolic peak velocity. This parameter could help in discriminating between normal (N) and microcirculatory pathologic (P) subjects, even the clinical meaning of 1.9<CFVR</=2.5 it's still not clear. Our goal was to develop a technique for automated tracings of Doppler flow velocity profile to reduce subjectivity and to allow the extraction of other parameters, which could be of clinical interest. This technique was applied to 15 N (CFVR>3) and 15 P (CFVR<1.8) subjects, to assess whose of the new parameters could be able to discriminate between these groups. Results indicated that many of the new parameters were able to evidence significant differences between N and P, thus representing new clinical indices useful for the diagnosis.
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Affiliation(s)
- E G Caiani
- Dept. of Biomed. Eng., Politecnico di Milano, Italy
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Desideri A, Bigi R, Cortigiani L, Rambaldi R, Sabbadin D, Curti G, Celegon L. Predischarge exercise electrocardiogram and stress echocardiography can predict long-term clinically driven revascularization following acute myocardial infarction. Clin Cardiol 2006; 26:67-70. [PMID: 12625596 PMCID: PMC6654339 DOI: 10.1002/clc.4960260205] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
BACKGROUND Predischarge stress testing provides suboptimal prediction of spontaneous hard events following uncomplicated acute myocardial infarction (AMI). HYPOTHESIS This study was aimed at assessing whether soft cardiac ischemic events requiring late revascularization could be predicted more accurately. METHODS In all, 428 patients undergoing exercise electrocardiography (ECG) and stress echocardiography (SE, 345 dobutamine and 83 dypiridamole) within 15 days of uncomplicated AMI were followed up for 425 (range 20-2220) days. Soft ischemic events (effort angina>class II [Canadian Cardiovascular Society Classification] and unstable angina) driving late (>6 months) revascularization were regarded as endpoints. RESULTS A total of 58 events (29 effort and 29 unstable angina with subsequent 47 coronary artery bypass grafts and 11 percutaneous transluminal coronary angioplasties) occurred: 26 in patients with positive exercise ECG and 34 in patients with positive SE. Univariate predictors of revascularizations were positive exercise ECG (p = 0.0001), peak wall motion score index (WMSI) (p = 0.0009), low workload (p = 0.0018), rest WMSI (p = 0.02) and positive SE (p = 0.02). Cox multivariate analysis selected peak WMSI, positive exercise ECG, and low workload positive exercise ECG as independent predictors of late revascularizations. CONCLUSIONS Predischarge stress testing identifies the long-term occurrence of soft ischemic events driving late revascularization after uncomplicated AMI.
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Affiliation(s)
- Alessandro Desideri
- Cardiovascular Research Foundation, S. Giacomo Hospital, Castelfranco Veneto, Italy.
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Wake R, Takeuchi M, Yoshitani H, Miyazaki C, Otani S, Yoshiyama M, Yoshikawa J. Role of Contrast-Enhanced Dobutamine Stress Echocardiography in Predicting Outcome in Patients with Known or Suspected Coronary Artery Disease. Echocardiography 2006; 23:642-9. [PMID: 16970715 DOI: 10.1111/j.1540-8175.2006.00283.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Although the application of intravenous contrast agents during stress echocardiography has been shown to improve diagnostic accuracy for detecting coronary artery disease, less information exists regarding its prognostic value. The aim of this study was to determine the role of contrast-enhanced dobutamine stress echocardiography (DSE) for predicting future cardiac events in patients with coronary artery disease (CAD). We studied 893 patients (mean age: 66, 581 men) with known or suspected CAD undergoing contrast-enhanced DSE. Positivity was defined as new/worsened wall motion abnormality or fixed abnormality during stress. All patients were followed for 15 +/- 10 months to evaluate hard cardiac events (cardiac death and nonfatal myocardial infarction) and total cardiac events (hard cardiac events, congestive heart failure, unstable angina, and late revascularization). Three patients were lost to follow-up, and 128 patients developed cardiac events, including 21 hard cardiac events. The 3-year event free survival rate was significantly lower in patients with positive DSE results than in those with negative DSE results. Stepwise Cox multivariate analysis revealed that positivity of DSE (P < 0.0001, Hazard ratio (HR): 2.48) and peak wall motion score index (WMSI) >1.5 (P < 0.0001, HR: 2.41) were independent predictors for total cardiac events. Considering hard cardiac events, the independent predictors were peak WMSI > 1.5 (P < 0.0001, HR: 6.65) and age > 70 years (P < 0.005, HR: 3.27). We conclude that contrast-enhanced DSE provides important prognostic information for future cardiac events.
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Affiliation(s)
- Ryotaro Wake
- Department of Internal Medicine and Cardiology, Graduate School of Medicine, Osaka City University, Osaka, Japan
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Bangalore S, Yao SS, Puthumana J, Chaudhry FA. Incremental Prognostic Value of Stress Echocardiography Over Clinical and Stress Electrocardiographic Variables in Patients With Prior Myocardial Infarction: "Warranty Time" of a Normal Stress Echocardiogram. Echocardiography 2006; 23:455-64. [PMID: 16839382 DOI: 10.1111/j.1540-8175.2006.00261.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Patients with prior myocardial infarction (MI) are at increased risk of subsequent cardiac events (MI or cardiac death). The incremental prognostic value and warranty time of a normal stress echocardiogram in this high-risk population is not well defined. METHODS We evaluated 251 consecutive patients (62 +/- 11 years; 64% males) with remote history of MI (>6 weeks) undergoing stress echocardiography (83% dobutamine). Ischemia was defined as a new reversible wall motion abnormality and/or biphasic response. Follow-up for up to 4 years (mean 2.9 +/- 1.0 years) for confirmed MI (n = 7) and cardiac death (n = 15) were obtained. RESULTS Stress echocardiography effectively risk stratified patients into normal versus abnormal subgroups (Event rate 0.8% per year vs 4.2% per year; P = 0.01; RR = 5.6, 95% CI = 1.3-24.7). In patients with a normal stress echocardiogram, the event rate at the end of 6, 12, and 18 months were <1% per year. After 18 months the event rate in patients with a normal stress echocardiogram increased greatly (>1% per year). Stress echocardiography yields incremental prognostic value over clinical and stress electrocardiographic variables (Global chi-square increased from 12.4 to 25 to 31.1, P < 0.0001 both groups). CONCLUSIONS Stress echocardiography yields appropriate risk stratification and prognosis and provides incremental prognostic value over clinical and stress electrocardiographic variables even in patients with prior MI. A normal stress echocardiogram portends a benign prognosis (<1% event rate/year) for up to 18 months.
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Affiliation(s)
- Sripal Bangalore
- Department of Medicine, Division of Cardiology, St. Luke's-Roosevelt Hospital Center, Columbia University College of Physicians and Surgeons, New York, New York 10025, USA
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Baldini U, Dini FL, Raugi M, Genovesi-Ebert A. Incremental prognostic value of stress echo positivity in the left anterior descending coronary artery territory. Int J Cardiol 2006; 109:381-6. [PMID: 16038992 DOI: 10.1016/j.ijcard.2005.06.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2004] [Revised: 04/05/2005] [Accepted: 06/17/2005] [Indexed: 11/16/2022]
Abstract
BACKGROUND Dipyridamole stress echo (DSE) positivity is usually titrated according to presence and severity of the induced wall motion abnormalities. The purpose of our study is to assess whether the location of DSE positivity might add to prognostic stratification. METHODS The study enrolled 112 patients with known or suspected coronary artery disease (CAD) and without a history of prior myocardial infarction. They were consecutively submitted to DSE (0.84 mg/Kg in 10 min followed by atropine administration, when needed) and coronary angiography (within a 15+/-7 day period). End points at follow-up were cardiac death and acute coronary syndromes. RESULTS Twenty-seven patients had a negative, and 85 a positive DSE (47 in the LAD territory). Angiographically assessed CAD was present in 82 patients (LAD in 59). At a follow-up of 9+/-7 months, there were 28 events of cardiac deaths or acute coronary syndromes. Event-free survival was lower in patients with positive DSE (any location) compared to those with negative DSE (47% vs 89%, p=0.003). In the subset with positive DSE, event-free survival was lower in patients with wall motion abnormalities in the LAD territory compared to those with dysfunction in the left circumflex and right coronary artery territory (31% vs 72%, p=0.00012 ). At multivariate analysis, stress echo positivity in the LAD territory was independently associated with increased risk (HR: 9.51, CI: 1.61 to 56.11, p<0.013) and outperformed angiographically assessed LAD stenosis (HR: 0.36, CI: 0.06 to 2.24, p: NS). CONCLUSIONS In CAD patients, wall motion abnormalities in the LAD territory during DSE identified a higher risk subgroup. Functional stress echo positivity on the LAD territory overcame the prognostic impact of an anatomic, angiographically assessed LAD disease.
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Affiliation(s)
- Umberto Baldini
- Cardiovascular Unit-Civil Hospital, Viale Vittorio Alfieri, 36, 57124, Livorno, Italy.
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Arruda ALM, Barretto RBM, Shub C, Chandrasekaran K, Pellikka PA. Prognostic significance of ST-segment elevation during dobutamine stress echocardiography. Am Heart J 2006; 151:744.e1-744.e6. [PMID: 16504644 DOI: 10.1016/j.ahj.2005.10.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2005] [Accepted: 10/20/2005] [Indexed: 11/16/2022]
Abstract
BACKGROUND Limited data are available concerning the significance of ST-segment elevation during dobutamine stress echocardiography (DSE). The purpose of this study was to assess the prognostic significance of new ST-segment elevation during DSE and its relationship to angiographic severity of coronary artery disease (CAD). METHODS From 4240 consecutive patients who had DSE, we identified 134 (3%) patients with new stress-induced ST-segment elevation > or =1 mm in at least two contiguous electrocardiographic leads. Significant CAD was considered as > or =50% diameter obstruction by angiography. Follow-up was obtained for cardiac events. RESULTS Age was 69 +/- 10 years; 84 (63%) were men. ST-segment elevation developed in the anterior leads in 55 (41%), inferior leads in 100 (75%), and lateral leads in 54 (40%); 56 (42%) had ST elevation in more than one region. Dobutamine stress echocardiography was abnormal in all patients; 115 (86%) had ischemia. Coronary angiography was obtained in 69 (51%) patients. Stenosis was > or =70% diameter in 68 (99%) patients and multivessel in 53 (77%). Follow-up (2.6 +/- 2.8 years) was obtained in all 134 patients. Events occurred in 103 (77%) patients, including death in 53, coronary revascularization in 33, myocardial infarction in 12, and unstable angina in 5. Event-free survival was 55% at 2 years, 38% at 4 years, and 28% at 5 years. CONCLUSIONS Patients with stress-induced ST-segment elevation during DSE commonly have severe CAD and are at high risk for events during follow-up. These patients should be considered for coronary angiography.
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Affiliation(s)
- Ana Lucia M Arruda
- Division of Cardiovascular Diseases, Mayo Clinic and Foundation, Rochester, MN, USA
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Rigo F, Cortigiani L, Pasanisi E, Richieri M, Cutaia V, Celestre M, Raviele A, Picano E. The additional prognostic value of coronary flow reserve on left anterior descending artery in patients with negative stress echo by wall motion criteria. A Transthoracic Vasodilator Stress Echocardiography Study. Am Heart J 2006; 151:124-30. [PMID: 16368303 DOI: 10.1016/j.ahj.2005.03.008] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2004] [Accepted: 03/01/2005] [Indexed: 01/20/2023]
Abstract
BACKGROUND Vasodilator stress echocardiography allows imaging of left anterior descending (LAD) coronary flow reserve (CFR), which may provide additional prognostic information over regional wall motion. AIM To assess the prognostic value of CFR in patients with known or suspected coronary artery disease (CAD) and negative stress echo. METHODS We studied 329 consecutive patients (193 men, age 61 +/- 13 years) with known (n = 101) or suspected (n = 228) CAD and negative stress echo by standard wall motion criteria. All patients underwent dipyridamole (up to 0.84 mg/kg in 10 minutes) stress echo with CFR evaluation of LAD by Doppler. RESULTS During follow-up (28 +/- 10 months), 22 events occurred: 1 cardiac death, 6 nonfatal myocardial infarctions, 5 unstable anginas, and 10 late (> 6 months) coronary revascularizations. Moreover, 9 patients underwent early (< 6 months) revascularization and were censored. Using a receiver operating characteristic analysis, CFR < or = 1.92 was the best predictor of future events (area under the curve = 0.80, sensitivity = 77%, specificity = 85%) and was taken as criterion for reduced CFR accordingly. Sixty-three (19%) patients had reduced and 266 (81%) had normal CFR on LAD. The 36-month event-free survival was higher in patients with normal and lower in patients with reduced CFR (98% vs 64%, P < .0001). At Cox analysis, CFR of LAD (hazard ratio [HR] 16.52, 95% CI 5.76-47.40, P < .0001), left ventricular mass index (HR 1.03 per unit increment, 95% CI 1.00-1.05, P = .01), and smoking habit (HR 3.00, 95% CI 1.24-7.23, P = .01) were independent prognostic indicators. Using an interactive stepwise procedure, CFR on LAD provided additional prognostic information to clinical, resting echo, and angiographic findings. CONCLUSIONS In patients with known or suspected CAD and negative stress echocardiography by wall motion criteria, CFR provides independent information for prognostic stratification, and a reduced CFR is associated with a less benign long-term outcome.
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Affiliation(s)
- Fausto Rigo
- Cardiology Division, Umberto I Hospital, Mestre, Italy
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