1
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Carvalho TD, Freitas OGAD, Chalela WA, Hossri CAC, Milani M, Buglia S, Precoma DB, Falcão AMGM, Mastrocola LE, Castro I, Albuquerque PFD, Coutinho RQ, Brito FSD, Alves JDC, Serra SM, Santos MAD, Colombo CSSDS, Stein R, Herdy AH, Silveira ADD, Castro CLBD, Silva MMFD, Meneghello RS, Ritt LEF, Malafaia FL, Marinucci LFB, Pena JLB, Almeida AEMD, Vieira MLC, Stier Júnior AL. Brazilian Guideline for Exercise Test in the Adult Population - 2024. Arq Bras Cardiol 2024; 121:e20240110. [PMID: 38896581 DOI: 10.36660/abc.20240110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/21/2024] Open
Affiliation(s)
- Tales de Carvalho
- Clínica de Prevenção e Reabilitação Cardiosport, Florianópolis, SC - Brasil
- Universidade do Estado de Santa Catarina, Florianópolis, SC - Brasil
| | | | - William Azem Chalela
- Instituto do Coração do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (InCor-HCFMUSP), São Paulo, SP - Brasil
| | | | - Mauricio Milani
- Universidade de Brasília (UnB), Brasília, DF, Brasil
- Hasselt University, Hasselt - Bélgica
- Jessa Ziekenhuis, Hasselt - Bélgica
| | - Susimeire Buglia
- Instituto Dante Pazzanese de Cardiologia, São Paulo, SP - Brasil
| | | | - Andréa Maria Gomes Marinho Falcão
- Instituto do Coração do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (InCor-HCFMUSP), São Paulo, SP - Brasil
| | | | - Iran Castro
- Instituto de Cardiologia do Rio Grande do Sul, Porto Alegre, RS - Brasil
| | | | | | | | | | - Salvador Manoel Serra
- Instituto Estadual de Cardiologia Aloysio de Castro (IECAC), Rio de Janeiro, RJ - Brasil
| | - Mauro Augusto Dos Santos
- Instituto Nacional de Cardiologia do Rio de Janeiro, Rio de Janeiro, RJ - Brasil
- Linkcare Saúde, Rio de Janeiro, RJ - Brasil
| | | | - Ricardo Stein
- Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS - Brasil
| | - Artur Haddad Herdy
- Clínica de Prevenção e Reabilitação Cardiosport, Florianópolis, SC - Brasil
| | - Anderson Donelli da Silveira
- Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS - Brasil
- Hospital de Clínicas de Porto Alegre, Porto Alegre, RS - Brasil
- Hospital Moinhos de Vento, Porto Alegre, RS - Brasil
| | - Claudia Lucia Barros de Castro
- Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, RJ - Brasil
- CLINIMEX - Clínica de Medicina de Exercício, Rio de Janeiro, RJ - Brasil
| | | | | | - Luiz Eduardo Fonteles Ritt
- Escola Bahiana de Medicina e Saúde Pública, Salvador, BA - Brasil
- Instituto D'Or de Pesquisa e Ensino, Salvador, BA - Brasil
- Hospital Cárdio Pulmonar, Salvador, BA - Brasil
| | - Felipe Lopes Malafaia
- Hospital Samaritano Paulista, São Paulo, SP - Brasil
- UnitedHealth Group Brasil, São Paulo, SP - Brasil
| | - Leonardo Filipe Benedeti Marinucci
- Instituto do Coração do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (InCor-HCFMUSP), São Paulo, SP - Brasil
| | - José Luiz Barros Pena
- Faculdade Ciências Médicas de Minas Gerais, Belo Horizonte, MG - Brasil
- Hospital Felício Rocho, Belo Horizonte, MG - Brasil
| | | | - Marcelo Luiz Campos Vieira
- Instituto do Coração do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (InCor-HCFMUSP), São Paulo, SP - Brasil
- Hospital Israelita Albert Einstein, São Paulo, SP - Brasil
| | - Arnaldo Laffitte Stier Júnior
- Universidade Federal do Paraná (UFPR), Curitiba, PR - Brasil
- Secretaria Municipal de Saúde Curitiba, Curitiba, PR - Brasil
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2
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Tavares BG, Aguiar MO, Tsutsui J, Oliveira M, Soeiro ADM, Nicolau J, Ribeiro H, PoChiang H, Sbano J, Rochitte CE, Lopes B, Ramirez J, Kalil R, Mathias W. Sonothrombolysis Promotes Improvement in Left Ventricular Wall Motion and Perfusion Scores after Acute Myocardial Infarction. Arq Bras Cardiol 2022; 118:756-765. [PMID: 35508053 PMCID: PMC9007009 DOI: 10.36660/abc.20200651] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Revised: 02/22/2021] [Accepted: 03/24/2021] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND It has recently been demonstrated that the application of high-energy ultrasound and microbubbles, in a technique known as sonothrombolysis, dissolves intravascular thrombi and increases the angiographic recanalization rate in patients with ST-segment-elevation myocardial infarction (STEMI). OBJECTIVE To evaluate the effects of sonothrombolysis on left ventricular wall motion and myocardial perfusion in patients with STEMI, using real-time myocardial perfusion echocardiography (RTMPE). METHODS One hundred patients with STEMI were randomized into the following 2 groups: therapy (50 patients treated with sonothrombolysis and primary coronary angioplasty) and control (50 patients treated with primary coronary angioplasty). The patients underwent RTMPE for analysis of left ventricular ejection fraction (LVEF), wall motion score index (WMSI), and number of segments with myocardial perfusion defects 72 hours after STEMI and at 6 months of follow-up. P < 0.05 was considered statistically significant. RESULTS Patients treated with sonothrombolysis had higher LVEF than the control group at 72 hours (50% ± 10% versus 44% ± 10%; p = 0.006), and this difference was maintained at 6 months of follow-up (53% ± 10% versus 48% ± 12%; p = 0.008). The WMSI was similar in the therapy and control groups at 72 hours (1.62 ± 0.39 versus 1.75 ± 0.40; p = 0.09), but it was lower in the therapy group at 6 months (1.46 ± 0.36 versus 1.64 ± 0.44; p = 0.02). The number of segments with perfusion defects on RTMPE was similar in therapy and control group at 72 hours (5.92 ± 3.47 versus 6.94 ± 3.39; p = 0.15), but it was lower in the therapy group at 6 months (4.64 ± 3.31 versus 6.57 ± 4.29; p = 0.01). CONCLUSION Sonothrombolysis in patients with STEMI resulted in improved wall motion and ventricular perfusion scores over time.
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Affiliation(s)
- Bruno G. Tavares
- Hospital das ClínicasFaculdade de MedicinaUniversidade de São PauloSão PauloSPBrasil
Instituto do Coração do
Hospital das Clínicas
da
Faculdade de Medicina
da
Universidade de São Paulo
,
São Paulo
,
SP
–
Brasil
| | - Miguel Osman Aguiar
- Hospital das ClínicasFaculdade de MedicinaUniversidade de São PauloSão PauloSPBrasil
Instituto do Coração do
Hospital das Clínicas
da
Faculdade de Medicina
da
Universidade de São Paulo
,
São Paulo
,
SP
–
Brasil
| | - Jeane Tsutsui
- Hospital das ClínicasFaculdade de MedicinaUniversidade de São PauloSão PauloSPBrasil
Instituto do Coração do
Hospital das Clínicas
da
Faculdade de Medicina
da
Universidade de São Paulo
,
São Paulo
,
SP
–
Brasil
| | - Mucio Oliveira
- Hospital das ClínicasFaculdade de MedicinaUniversidade de São PauloSão PauloSPBrasil
Instituto do Coração do
Hospital das Clínicas
da
Faculdade de Medicina
da
Universidade de São Paulo
,
São Paulo
,
SP
–
Brasil
| | - Alexandre de Matos Soeiro
- Hospital das ClínicasFaculdade de MedicinaUniversidade de São PauloSão PauloSPBrasil
Instituto do Coração do
Hospital das Clínicas
da
Faculdade de Medicina
da
Universidade de São Paulo
,
São Paulo
,
SP
–
Brasil
| | - José Nicolau
- Hospital das ClínicasFaculdade de MedicinaUniversidade de São PauloSão PauloSPBrasil
Instituto do Coração do
Hospital das Clínicas
da
Faculdade de Medicina
da
Universidade de São Paulo
,
São Paulo
,
SP
–
Brasil
| | - Henrique Ribeiro
- Hospital das ClínicasFaculdade de MedicinaUniversidade de São PauloSão PauloSPBrasil
Instituto do Coração do
Hospital das Clínicas
da
Faculdade de Medicina
da
Universidade de São Paulo
,
São Paulo
,
SP
–
Brasil
| | - Hsu PoChiang
- Hospital das ClínicasFaculdade de MedicinaUniversidade de São PauloSão PauloSPBrasil
Instituto do Coração do
Hospital das Clínicas
da
Faculdade de Medicina
da
Universidade de São Paulo
,
São Paulo
,
SP
–
Brasil
| | - João Sbano
- Hospital das ClínicasFaculdade de MedicinaUniversidade de São PauloSão PauloSPBrasil
Instituto do Coração do
Hospital das Clínicas
da
Faculdade de Medicina
da
Universidade de São Paulo
,
São Paulo
,
SP
–
Brasil
| | - Carlos Eduardo Rochitte
- Hospital das ClínicasFaculdade de MedicinaUniversidade de São PauloSão PauloSPBrasil
Instituto do Coração do
Hospital das Clínicas
da
Faculdade de Medicina
da
Universidade de São Paulo
,
São Paulo
,
SP
–
Brasil
| | - Bernardo Lopes
- Hospital das ClínicasFaculdade de MedicinaUniversidade de São PauloSão PauloSPBrasil
Instituto do Coração do
Hospital das Clínicas
da
Faculdade de Medicina
da
Universidade de São Paulo
,
São Paulo
,
SP
–
Brasil
| | - José Ramirez
- Hospital das ClínicasFaculdade de MedicinaUniversidade de São PauloSão PauloSPBrasil
Instituto do Coração do
Hospital das Clínicas
da
Faculdade de Medicina
da
Universidade de São Paulo
,
São Paulo
,
SP
–
Brasil
| | - Roberto Kalil
- Hospital das ClínicasFaculdade de MedicinaUniversidade de São PauloSão PauloSPBrasil
Instituto do Coração do
Hospital das Clínicas
da
Faculdade de Medicina
da
Universidade de São Paulo
,
São Paulo
,
SP
–
Brasil
| | - Wilson Mathias
- Hospital das ClínicasFaculdade de MedicinaUniversidade de São PauloSão PauloSPBrasil
Instituto do Coração do
Hospital das Clínicas
da
Faculdade de Medicina
da
Universidade de São Paulo
,
São Paulo
,
SP
–
Brasil
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3
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Bytyçi I, Bengrid TM, Henein MY. Longitudinal myocardial function is more compromised in cardiac syndrome X compared to insignificant CAD: Role of stress echocardiography and calcium scoring. Clin Physiol Funct Imaging 2021; 42:35-42. [PMID: 34716983 DOI: 10.1111/cpf.12733] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 09/27/2021] [Accepted: 10/27/2021] [Indexed: 11/28/2022]
Abstract
BACKGROUND AND AIM The aim of this study was to assess the nature of myocardial dysfunction in the cardiac syndrome X (CSX) and insignificant coronary artery disease (ICAD) using dobutamine stress echocardiography (DSE) and coronary calcium scoring (CAC). METHODS We prospectively studied 35 consecutive patients who complained of exertional angina, had ≥1 mm ST shift on exercise stress test but normal or no obstructive CAD (<50%) on angiography. Patients were divided into CSX (n = 27) with normal arteries and ICAD (n = 8) with insignificant stenosis. RESULTS CSX patients had more females, lower calcium score and less prevalent cardiac risk factors compared to ICAD (p < 0.05 for all). At peak stress, MAPSE and TAPSE failed to increase in both groups. LV septal and lateral s' increased in the two groups but the increment increase was less in CSX than ICAD (p < 0.05) while other diastolic indices did not differ between groups (p > 0.05 for all). CAC correlated modestly with LV and RV systolic velocities: septal s' (r = -0.65, p < 0.001) lateral s' (r = -0.35, p = 0.04) and right s' (r = -0.53, p = 0.005) in CSX, while in ICAD patients only with RV s' (r = -0.58, p = 0.02). On multivariate model, only septal s' OR 1.816 (1.1090-3.820, p = 0.04) proved the most powerful independent predictor of CAC. CONCLUSIONS Compromised LV longitudinal systolic velocities were more pronounced and calcium score as a surrogate for atherosclerosis was lower in CSX than ICAD. These findings strengthen the evidence for different pathogenesis of CSX compared to ICAD, with microvascular disease in the former and calcification in the latter.
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Affiliation(s)
- Ibadete Bytyçi
- Institute of Public Health and Clinical Medicine, Umeå University, Umeå, 90187, Sweden.,Clinic of Cardiology, University Clinical Centre of Kosovo, Prishtina, 10000, Kosovo
| | | | - Michael Y Henein
- Institute of Public Health and Clinical Medicine, Umeå University, Umeå, 90187, Sweden.,Molecular and Clinic Research Institute, St George University, London and Brunel University, London, UB8 3PH, UK
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Qian L, Xie F, Xu D, Porter TR. Long-term prognostic value of stress myocardial perfusion echocardiography in patients with coronary artery disease: a meta-analysis. Eur Heart J Cardiovasc Imaging 2021; 22:553-562. [PMID: 32125367 DOI: 10.1093/ehjci/jeaa026] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 12/17/2019] [Accepted: 02/06/2020] [Indexed: 01/18/2023] Open
Abstract
AIMS To evaluate the prognostic value of myocardial perfusion (MP) imaging during contrast stress echocardiography (cSE) in patients with known or suspected coronary artery disease (CAD). METHODS AND RESULTS A search in PubMed, Embase databases, and the Cochrane library was conducted through May 2019. The Cochran Q statistic and the I2 statistic were used to assess heterogeneity, and the results were analysed by RevMan V5.3 and Stata V15.1 software. Twelve studies (seven dipyridamole and five exercise/dobutamine) without evidence of patient overlap (same institution publishing results over a similar time period) enrolling 5953 subjects (47% female, 8-80 months of follow-up) were included in the analysis. In all studies, total adverse cardiovascular events were defined as either cardiac death, non-fatal myocardial infarction (NFMI), or need for urgent revascularization. Hazard ratios (HRs) revealed that a MP abnormality [pooled HR 4.75; 95% confidence interval (CI) 2.47-9.14] was a higher independent predictor of total events than abnormal wall motion (WM, pooled HR 2.39; 95% CI 1.58-3.61) and resting left ventricular ejection fraction (LVEF, pooled HR 1.92; 95% CI 1.44-2.55) with significant subgroup differences (P = 0.002 compared with abnormal WM and 0.01 compared with abnormal LVEF). Abnormal MP was associated with higher risks for death [Risk ratio (RR) 5.24; 95% CI 2.91-9.43], NFMI (RR 3.09; 95% CI 1.84-5.21), and need for coronary revascularization (RR 16.44; 95% CI 6.14-43.99). CONCLUSION MP analysis during stress echocardiography is an effective prognostic tool in patients with known or suspected CAD and provides incremental value over LVEF and WM in predicting clinical outcomes.
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Affiliation(s)
- Lijun Qian
- Department of Geriatrics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Feng Xie
- Division of Cardiovascular Medicine, University of Nebraska Medical Center, Omaha, NE, 69198-1165, USA
| | - Di Xu
- Department of Geriatrics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - T R Porter
- Division of Cardiovascular Medicine, University of Nebraska Medical Center, Omaha, NE, 69198-1165, USA
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5
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Troy AM, Cheng HM. Human microvascular reactivity: a review of vasomodulating stimuli and non-invasive imaging assessment. Physiol Meas 2021; 42. [PMID: 34325417 DOI: 10.1088/1361-6579/ac18fd] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 07/29/2021] [Indexed: 11/11/2022]
Abstract
The microvasculature serves an imperative function in regulating perfusion and nutrient exchange throughout the body, adaptively altering blood flow to preserve hemodynamic and metabolic homeostasis. Its normal functioning is vital to tissue health, whereas its dysfunction is present in many chronic conditions, including diabetes, heart disease, and cognitive decline. As microvascular dysfunction often appears early in disease progression, its detection can offer early diagnostic information. To detect microvascular dysfunction, one uses imaging to probe the microvasculature's ability to react to a stimulus, also known as microvascular reactivity (MVR). An assessment of MVR requires an integrated understanding of vascular physiology, techniques for stimulating reactivity, and available imaging methods to capture the dynamic response. Practical considerations, including compatibility between the selected stimulus and imaging approach, likewise require attention. In this review, we provide a comprehensive foundation necessary for informed imaging of MVR, with a particular focus on the challenging endeavor of assessing microvascular function in deep tissues.
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Affiliation(s)
- Aaron M Troy
- Institute of Biomedical Engineering, University of Toronto, Toronto, CANADA
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6
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Iannuzzi GL, Maniscalco M, Elia A, Scognamiglio A, Furgi G, Rengo F. Left ventricular hypertrophy as protective factor after bypass grafting. Med Hypotheses 2018; 114:35-39. [PMID: 29602461 DOI: 10.1016/j.mehy.2018.03.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Accepted: 03/04/2018] [Indexed: 11/17/2022]
Abstract
Left ventricular hypertrophy (LVH) is a well established cardiovascular risk factor, accounting for an increase in cardiovascular morbid-mortality, although how much the magnitude and the kind of LVH could affect cardiovascular outcomes is in large part unknown. We speculate that mild LVH in absence of left ventricular (LV) chamber dilation, could play a protective role towards functional capacity, clinical outcome, cardiovascular and total morbi-mortality in conditions in which LV systolic function is generally reduced. Accordingly to many epidemiological observations, the availability of extra-quote of systolic function could lead to a significative improvement in the final outcome of some kinds of heart patients, as those undergoing bypass-grafting, where the stress for heart and cardiovascular system is always high. We suppose that the functional reserve available for patients with LVH could make the difference with respect to other patients undergoing myocardial revascularization. Similarly, the availability of a contractile reserve warranted by LVH could ensure a little gain in the outcome for patients after other major cardiovascular events (such as myocardial infarction or other heart surgery as surgical valve replacement). However, our hypothesis only involves mild LVH without LV chamber dilation, that is the initial stage of "non-dilated concentric" LVH and "non-dilated eccentric" LVH according to the new four-tiered classification of LVH based on relative wall thickness and LV dilation. Support for our hypothesis derives from the well-known protective role of systolic function that is a major factor in almost all cardiovascular diseases, where LV ejection fraction (LVEF) has shown to significantly improve quality of life, as well as morbidity and mortality. The knowledge that mild LVH in absence of LV chamber dilation is not as harmful in such conditions as believed at present could make avoidable some drugs prescription in some stages of the disease. Furthermore, it may allow a better evaluation of the risk profile of patients with LVH undergoing some cardiovascular major events like bypass grafting, myocardial infarction or surgical heart valve replacement.
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Affiliation(s)
- Gian Luca Iannuzzi
- Cardiac Rehabilitation Unit, "Maugeri Clinical and Scientific Institutes" ICSR, 82037 Telese, BN, Italy
| | - Mauro Maniscalco
- Pulmonary Rehabilitation Unit, "Maugeri Clinical and Scientific Institutes" ICSR, 82037 Telese, BN, Italy.
| | - Andrea Elia
- Cardiac Rehabilitation Unit, "Maugeri Clinical and Scientific Institutes" ICSR, 82037 Telese, BN, Italy
| | - Anna Scognamiglio
- Cardiac Rehabilitation Unit, "Maugeri Clinical and Scientific Institutes" ICSR, 82037 Telese, BN, Italy
| | - Giuseppe Furgi
- Cardiac Rehabilitation Unit, "Maugeri Clinical and Scientific Institutes" ICSR, 82037 Telese, BN, Italy
| | - Franco Rengo
- Scientific Direction, "Maugeri Clinical and Scientific Institutes" ICSR, 82037 Telese, BN, Italy
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7
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Mordi IR, Badar AA, Irving RJ, Weir-McCall JR, Houston JG, Lang CC. Efficacy of noninvasive cardiac imaging tests in diagnosis and management of stable coronary artery disease. Vasc Health Risk Manag 2017; 13:427-437. [PMID: 29200864 PMCID: PMC5701553 DOI: 10.2147/vhrm.s106838] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
The aim of this review was to discuss the current literature regarding the utility of noninvasive imaging in diagnosis and management of stable coronary artery disease (CAD) including recent data from large randomized trials assessing diagnosis and prognosis. Current guidelines recommend revascularization in patients with refractory angina and in those with potential prognostic benefit. Appropriate risk stratification through noninvasive assessment is important in ensuring patients are not exposed to unnecessary invasive coronary angiograms. The past 20 years have seen an unprecedented expansion in noninvasive imaging modalities for the assessment of stable CAD, with cardiovascular magnetic resonance and computed tomography complementing established techniques such as myocardial perfusion imaging, echocardiography and exercise electrocardiogram. In this review, we examine the current state-of-the-art in noninvasive imaging to provide an up-to-date analysis of current investigation and management options.
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Affiliation(s)
- Ify R Mordi
- Division of Molecular and Clinical Medicine, University of Dundee, Dundee, UK.,Department of Cardiology, Ninewells Hospital and Medical School, Dundee, UK
| | - Athar A Badar
- Department of Cardiology, Ninewells Hospital and Medical School, Dundee, UK
| | - R John Irving
- Department of Cardiology, Ninewells Hospital and Medical School, Dundee, UK
| | | | - J Graeme Houston
- Division of Molecular and Clinical Medicine, University of Dundee, Dundee, UK
| | - Chim C Lang
- Division of Molecular and Clinical Medicine, University of Dundee, Dundee, UK.,Department of Cardiology, Ninewells Hospital and Medical School, Dundee, UK
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8
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Abstract
In contrast to invasive techniques, the goal of non-invasive cardiac imaging is to identify or exclude heart disease in response to a patient's clinical history of cardiac localizing symptoms. Imaging also aims to establish the risk of an individual developing future heart disease with a view to preventing major cardiovascular events such as myocardial infarction. As well as a role in risk stratification, non-invasive cardiac imaging also helps with decision making for future medical and procedural interventions. This review outlines the non-invasive imaging modalities available to physicians to identify and risk stratify cardiovascular disease. It discusses the strengths of each imaging technique, in which circumstances it is most useful and its diagnostic accuracy.
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Affiliation(s)
- Mark J Davies
- Cardiology Registrar, Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, and Department of Cardiology, Wycombe Hospital, Buckinghamshire NHS Trust, High Wycombe, Buckinghamshire HP11 2TT
| | - James D Newton
- Consultant Cardiologist, Oxford Heart Centre, Oxford University Hospitals NHS Foundation Trust, John Radcliffe Hospital, Oxford
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