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Diagnostic Accuracy of Global Longitudinal Strain for Detecting Exercise Intolerance in Patients with Ischemic Heart Disease. J Cardiovasc Dev Dis 2022; 10:jcdd10010010. [PMID: 36661905 PMCID: PMC9865640 DOI: 10.3390/jcdd10010010] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 12/05/2022] [Accepted: 12/23/2022] [Indexed: 12/29/2022] Open
Abstract
Objective: Global longitudinal strain (GLS) is a sensitive and reproducible predictive factor in patients with ischemic heart disease (IHD), although its correlation with exercise tolerance is unknown. We aimed to identify the correlation between global longitudinal strain (GLS) and cardiopulmonary exercise testing (CPX) parameters and assess the prognostic implications and accuracy of GLS in predicting exercise intolerance in populations with ischemic heart disease (IHD) using CPET criteria. Methods: Prospectively, 108 patients with IHD underwent CPX and 2D speckle-tracking echocardiography. Correlation between GLS and multiple CPX variables was assessed using Spearman’s correlation analysis and univariate regression analysis. A receiver operating characteristic (ROC) curve analysis was performed on GLS to detect exercise intolerance. Results: GLS was correlated with peak oxygen uptake (peak VO2; r = −0.438, p = 0.000), %PPeak VO2 (−0.369, p = 0.000), peak metabolic equivalents (METs@peak; r = −0.438, p < 0.01), and the minute ventilation−carbon dioxide production (VE/VCO2) slope (r = 0.257, p < 0.01). Weak-to-moderate correlations were also identified for the respiratory exchange rate at the anaerobic threshold (RER@AT), end-tidal carbon dioxide at the anaerobic threshold (PETCO2@AT), oxygen consumption at the anaerobic threshold (VO2@AT), carbon dioxide production at the anaerobic threshold (VCO2@AT), and metabolic equivalents at the anaerobic threshold (METs@AT; p < 0.01). On multivariate analysis, the results showed that age, the BMI, and GLS are independent predictors for reduced exercise capacity in patients with IHD (p < 0.01). The area under the ROC curve value of GLS for identifying patients with a peak VO2 of <14 mL/kg/min was 0.73 (p = 0.000). Conclusion: As a sensitive echocardiographic assessment of patients with ischemic heart disease, global longitudinal strain is an independent predictor of reduced exercise capacity and has a sensitivity of 74.2% and a specificity of 66.7% to detect exercise intolerance.
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Guaricci AI, Chiarello G, Gherbesi E, Fusini L, Soldato N, Siena P, Ursi R, Ruggieri R, Guglielmo M, Muscogiuri G, Baggiano A, Rabbat MG, Memeo R, Lepera M, Favale S, Pontone G. Coronary-specific quantification of myocardial deformation by strain echocardiography may disclose the culprit vessel in patients with non-ST-segment elevation acute coronary syndrome. EUROPEAN HEART JOURNAL OPEN 2022; 2:oeac010. [PMID: 35919124 PMCID: PMC9242069 DOI: 10.1093/ehjopen/oeac010] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 12/06/2021] [Indexed: 12/22/2022]
Abstract
Aims To compare the diagnostic accuracy of speckle tracking echocardiography technique using territorial longitudinal strain (TLS) for the detection of culprit vessel vs. vessel-specific wall motion score index (WMSI) in non-ST-segment elevation–acute coronary syndrome (NSTE-ACS) patients scheduled for invasive coronary angiography (ICA). Methods and results One hundred and eighty-three patients (mean age: 66 ± 12 years, male: 71%) diagnosed with NSTE-ACS underwent echocardiography evaluation at hospital admission and ICA within 24 h. Culprit vessels were left anterior descending (LAD), left circumflex (CX), and right coronary arteries (RCAs) in 38.5%, 39.6%, and 21.4%, respectively. An increase of affected vessels [1-, 2-, and 3-vessel coronary artery disease (CAD)] was associated with increased WMSI and TLS values. There was a statistically significant difference of both WMSI-LAD, WMSI-CX, WMSI-RCA and TLS-LAD, TLS-CX, TLS-RCA of myocardial segments with underlying severe CAD compared to no CAD (P = 0.001 and P < 0.001, respectively). Moreover, a significant difference of TLS-LAD, TLS-CX, TLS-RCA, and WMSI-CX of myocardial segments with an underlying culprit vessel compared to non-culprit vessels (P < 0.001, P < 0.001, P = 0.022, and P < 0.001, respectively) was identified. WMSI-LAD and WMSI-RCA did not show statistical significant differences. A regression model revealed that the combination of WMSI + TLS was more accurate compared to WMSI alone in detecting the culprit vessel (LAD, P = 0.001; CX, P < 0.001; and RCA, P = 0.019). Conclusion Territorial longitudinal strain allows an accurate identification of the culprit vessel in NSTE-ACS patients. In addition to WMSI, TLS may be considered as part of routine echocardiography for better clinical assessment in this subset of patients.
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Affiliation(s)
- Andrea Igoren Guaricci
- Department of Emergency and Organ Transplantation, University Cardiology Unit, Policlinic University Hospital, Piazza Giulio Cesare 11, Bari 70124, Italy
| | - Giuseppina Chiarello
- Department of Emergency and Organ Transplantation, University Cardiology Unit, Policlinic University Hospital, Piazza Giulio Cesare 11, Bari 70124, Italy
| | - Elisa Gherbesi
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - Laura Fusini
- Perioperative Cardiology and Cardiovascular Imaging Department, Centro Cardiologico Monzino, IRCCS, Milan, Italy
| | - Nicolo' Soldato
- Department of Emergency and Organ Transplantation, University Cardiology Unit, Policlinic University Hospital, Piazza Giulio Cesare 11, Bari 70124, Italy
| | - Paola Siena
- Department of Emergency and Organ Transplantation, University Cardiology Unit, Policlinic University Hospital, Piazza Giulio Cesare 11, Bari 70124, Italy
| | - Raffaella Ursi
- Department of Emergency and Organ Transplantation, University Cardiology Unit, Policlinic University Hospital, Piazza Giulio Cesare 11, Bari 70124, Italy
| | - Roberta Ruggieri
- Department of Emergency and Organ Transplantation, University Cardiology Unit, Policlinic University Hospital, Piazza Giulio Cesare 11, Bari 70124, Italy
| | - Marco Guglielmo
- Perioperative Cardiology and Cardiovascular Imaging Department, Centro Cardiologico Monzino, IRCCS, Milan, Italy
| | - Giuseppe Muscogiuri
- Perioperative Cardiology and Cardiovascular Imaging Department, Centro Cardiologico Monzino, IRCCS, Milan, Italy
| | - Andrea Baggiano
- Perioperative Cardiology and Cardiovascular Imaging Department, Centro Cardiologico Monzino, IRCCS, Milan, Italy
| | | | - Riccardo Memeo
- Department of Emergency and Organ Transplantation, University Cardiology Unit, Policlinic University Hospital, Piazza Giulio Cesare 11, Bari 70124, Italy
| | - Mario Lepera
- Department of Emergency and Organ Transplantation, University Cardiology Unit, Policlinic University Hospital, Piazza Giulio Cesare 11, Bari 70124, Italy
| | - Stefano Favale
- Department of Emergency and Organ Transplantation, University Cardiology Unit, Policlinic University Hospital, Piazza Giulio Cesare 11, Bari 70124, Italy
| | - Gianluca Pontone
- Perioperative Cardiology and Cardiovascular Imaging Department, Centro Cardiologico Monzino, IRCCS, Milan, Italy
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Atici A, Barman HA, Durmaz E, Demir K, Cakmak R, Tugrul S, Elitok A, Onur İ, Sahin İ, Oncul A. Predictive value of global and territorial longitudinal strain imaging in detecting significant coronary artery disease in patients with myocardial infarction without persistent ST-segment elevation. Echocardiography 2019; 36:512-520. [PMID: 30803009 DOI: 10.1111/echo.14275] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 01/12/2019] [Accepted: 01/15/2019] [Indexed: 12/22/2022] Open
Abstract
INTRODUCTION Two-dimensional (2D) speckle-tracking echocardiographic (STE) imaging is frequently performed in the assessment of cardiovascular diseases. We aim to investigate the role of the global and territorial longitudinal strain (GLS and TLS) values assessed via 2D STE imaging to detect significant coronary artery disease (CAD) in non-ST-segment elevation myocardial infarction (NSTEMI) patients without wall-motion abnormalities. METHODS This study enrolled 150 patients with the diagnosis of NSTEMI. Patients who had typical chest pain with unstable angina characteristics within the last 24 hours were 18-80 years of age and had a typical rise and/or fall of cardiac biomarkers were included. Myocardial functions were assessed via myocardial deformation analyses of 2D STE images. RESULTS The mean age of the CAD group was 52.91 ± 9.11, vs 50.31 ± 8.32 in the control group. In the CAD group, 56 patients were male (65%), whereas 21 were male (60%) in control group. GLS and TLS assessments demonstrated a statistically significant difference between CAD and control groups, with GLS values of -16.27 ± 1.91 and -18.74 ± 1.93 (P < 0.001), TLS-LAD values of -15.67 ± 1.83 and -18.54 ± 1.97 (P < 0.001), TLS-RCA values of -17.04 ± 1.81 and -19.20 ± 1.86 (P < 0.001), and TLS-Cx values of -17.40 ± 2.08 and -18.34 ± 2.18 (P = 0.028), respectively. Correlation analyses revealed that as high-sensitivity troponin (hsTnT) values increased, GLS decreased significantly, and further, an increase in severity of CAD resulted in decreased TLS-LAD, -CX and -RCA (TLS-LAD: P < 0.001, r = -0.743; TLS-CX: P < 0.001, r = -0.449; TLS-RCA: P < 0.001, r = -0.737). Multivariate analyses indicated that GLS and GRACE ACS risk scores are independent predictors of CAD in patients with NSTEMI (GLS: OR = 0.514, P < 0.001; GRACE score: OR = 0.938, P = 0.007). CONCLUSIONS Global longitudinal strain (GLS) assessed with 2D STE is a promising, easy to perform and quick imaging method to predict CAD in patients with NSTEMI.
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Affiliation(s)
- Adem Atici
- Okmeydani Research and Training Hospital Istanbul, Istanbul, Turkey
| | - Hasan Ali Barman
- Okmeydani Research and Training Hospital Istanbul, Istanbul, Turkey
| | - Eser Durmaz
- Okmeydani Research and Training Hospital Istanbul, Istanbul, Turkey
| | - Koray Demir
- Okmeydani Research and Training Hospital Istanbul, Istanbul, Turkey
| | - Ramazan Cakmak
- Okmeydani Research and Training Hospital Istanbul, Istanbul, Turkey
| | - Sevil Tugrul
- Okmeydani Research and Training Hospital Istanbul, Istanbul, Turkey
| | - Ali Elitok
- Okmeydani Research and Training Hospital Istanbul, Istanbul, Turkey
| | - İmran Onur
- Okmeydani Research and Training Hospital Istanbul, Istanbul, Turkey
| | - İrfan Sahin
- Okmeydani Research and Training Hospital Istanbul, Istanbul, Turkey
| | - Aytac Oncul
- Okmeydani Research and Training Hospital Istanbul, Istanbul, Turkey
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Steeds RP, Garbi M, Cardim N, Kasprzak JD, Sade E, Nihoyannopoulos P, Popescu BA, Stefanidis A, Cosyns B, Monaghan M, Aakhus S, Edvardsen T, Flachskampf F, Galiuto L, Athanassopoulos G, Lancellotti P, Delgado V, Donal E, Galderisi M, Lombardi M, Muraru D, Haugaa K. EACVI appropriateness criteria for the use of transthoracic echocardiography in adults: a report of literature and current practice review. Eur Heart J Cardiovasc Imaging 2017; 18:1191-1204. [DOI: 10.1093/ehjci/jew333] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Accepted: 12/21/2016] [Indexed: 12/19/2022] Open
Affiliation(s)
- Richard P. Steeds
- University Hospital Birmingham NHS Foundation Trust, Mindelsohn Road, Edgbaston, Birmingham, UK B15 2GW and Honorary Reader, Institute of Cardiovascular Sciences, University of Birmingham; UK
| | - Madalina Garbi
- King's College Hospital NHS Foundation Trust, Denmark Hill, London, SE5 9RS UK
| | - Nuno Cardim
- Echocardiography Laboratory, Hospital da Luz Av. Lus죡, n° 100 - 1500-650, Lisbon, Portugal
| | - Jaroslaw D. Kasprzak
- Department of Cardiology, Bieganski Hospital Medical University of Lodz, Kniaziewicza 1/5, 91-347, Lodz, Poland
| | - Elif Sade
- Department of Cardiology, Baskent University School of Medicine, Fevzi ơkmak Cad. 10. Sok. Bahcelievler 06490 Ankara, Turkey
| | - Petros Nihoyannopoulos
- Imperial College London, NHLI Hammersmith Hospital, Du Cane Road, London W12 0NN, UK and University of Athens, Greece
| | - Bogdan Alexandru Popescu
- University of Medicine and Pharmacy “Carol Davila”–Euroecolab, Institute of Cardiovascular Diseases, Sos. Fundeni 258, sector 2, 022328, Bucharest, Romania
| | - Alexandros Stefanidis
- 1st Department of Cardiology, General Hospital of Nikea, 3 P. Mela str., 184 54, Athens, Greece
| | - Bernard Cosyns
- Department of Cardiology, CHVZ (Centrum voor Hart en Vaatziekten) Universitair Ziekenhuis, VUB, Laarbeeklaan 101, 1090 Jette, Brussel, Belgium
| | - Mark Monaghan
- King's College Hospital NHS Foundation Trust, Denmark Hill, London, SE5 9RS UK
| | - Svend Aakhus
- Department of Cardiology, Oslo University Hospital, postboks 4950 Nydalen, 0424 Oslo and Faculty of Medicine, Norwegian University of Science and Technology, NTNU, 7491 Trondheim
| | - Thor Edvardsen
- Department of Cardiology, Oslo University Hospital, Rikshospitalet, Sognsvannsveien 20, NO-0027 Oslo , Norway
| | - Frank Flachskampf
- Department of Medical Sciences, Clinical Physiology, Uppsala University, Akademiska ingang 40, 751 85 Uppsala, Sweden
| | - Leonarda Galiuto
- Department of Cardiovascular Sciences, Catholic University of the Sacred Heart, Policlinico Agostino Gemelli, Largo A Gemelli 8, 00168 Roma, Italy
| | | | - Patrizio Lancellotti
- Departments of Cardiology, University of Lie`ge Hospital, GIGA Cardiovascular Sciences, Heart Valve Clinic, CHU Sart Tilman, Lie‘ge, Belgium and Gruppo Villa Maria Care and Research, Anthea, Hospital, Bari, Italy
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Caspar T, Samet H, Ohana M, Germain P, El Ghannudi S, Talha S, Morel O, Ohlmann P. Longitudinal 2D strain can help diagnose coronary artery disease in patients with suspected non-ST-elevation acute coronary syndrome but apparent normal global and segmental systolic function. Int J Cardiol 2017; 236:91-94. [PMID: 28258851 DOI: 10.1016/j.ijcard.2017.02.068] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Revised: 02/01/2017] [Accepted: 02/19/2017] [Indexed: 11/16/2022]
Abstract
BACKGROUND The clinical work-up of patients presenting with chest pain is a diagnostic challenge. We investigated the diagnostic performance of global (GLS) and territorial (TLS) longitudinal strain to predict coronary artery disease (CAD) in patients presenting with suspected non-ST-segment elevation acute coronary syndrome (NSTE-ACS) but apparent normal global and regional systolic function. METHODS 150 consecutive suspected NSTE-ACS patients were initially screened for inclusion ; 58 patients with normal LVEF (≥55%) and WMSI (=1) were prospectively enrolled. Speckle-tracking echocardiography was performed on admission and all the patients underwent coronary angiography. CAD was defined as the presence of stenosis of >50%. RESULTS CAD was present in 33 patients (57%). LVEF was 60.7±4.6% in group 1 (CAD) and 61.1±5.0% in group 2 (no CAD). Global longitudinal strain (GLS) was altered in group 1 (-16.7±3.4%) as compared to group 2 (-22.4±2.9%, p<0.001). ROC curve analysis showed a high diagnostic value of GLS for the prediction of CAD (AUC=0.92 [0.84-1.00], p=0.0001). TLS was able to discriminate between coronary stenosis in the LAD, LCX or RCA. CONCLUSIONS Longitudinal 2D strain has a good diagnostic value and can efficiently localize the culprit lesion in patients presenting with NSTE-ACS but apparent normal global and regional systolic function.
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Affiliation(s)
- Thibault Caspar
- Department of Cardiology, University Hospital of Strasbourg, France.
| | - Hafida Samet
- Department of Cardiology, University Hospital of Strasbourg, France
| | - Mickaël Ohana
- Department of Radiology, University Hospital of Strasbourg, France
| | - Philippe Germain
- Department of Radiology, University Hospital of Strasbourg, France
| | | | - Samy Talha
- Department of Cardiology, University Hospital of Strasbourg, France
| | - Olivier Morel
- Department of Cardiology, University Hospital of Strasbourg, France
| | - Patrick Ohlmann
- Department of Cardiology, University Hospital of Strasbourg, France
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Wagner KJ, Unterbuchner C, Bogdanski R, Martin J, Kochs EF, Tassani-Prell P. [Postoperative acute mitral regurgitation. Unexpected finding after minor non-cardiac surgery]. Anaesthesist 2008; 57:976-81. [PMID: 18607554 DOI: 10.1007/s00101-008-1409-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
This report describes the case of a 59-year-old man who was scheduled for general anesthesia with propofol, sufentanil and sevoflurane for removal of a metal implant. The patient was classified as American Society of Anesthesiologists (ASA) II status because of an asymptomatic mitral valve prolapse and medically treated arterial hypertension. During induction of narcosis a pulsoxymetrically measured inadequate increase in oxygen saturation after preoxygenation was noticed and a moderate respiratory obstruction occurred intraoperatively, but anesthesia was uneventfully completed and the patient was extubated. However, 3 h later the patient developed severe dyspnea, hypoxia, tachycardia and arterial hypotension. Physical examination revealed a new grade 4/6 systolic murmur radiating to the axilla and X-ray showed bilateral pulmonary edema. Neither electrocardiographic nor biochemical manifestations of acute myocardial infarction were identified but transthoracic echocardiography revealed fluttering of the posterior leaflet of the mitral valve with grade III regurgitation and dilation of the left atrium. Coronary angiography was normal and left ventriculography confirmed severe mitral regurgitation. Mitral valve repair was successfully performed 22 h after presentation of symptoms. Mitral regurgitation is a common finding on echocardiography, seen to some degree in over 75% of the population. The etiology of mitral valve insufficiency which can be caused by pathologic changes of one or more of the components of the mitral valve, including the leaflets, annulus, chordae tendineae, papillary muscles, or by abnormalities of the surrounding left ventricle and/or atrium are discussed. Rupture of mitral chordae tendineae is infrequent and causes acute hemodynamic deterioration and needs corrective surgery. Valve replacement should be performed only if mitral valve repair is not possible. Echocardiography is an invaluable tool in determining the severity of regurgitation, the integrity of the mitral valve apparatus, the extent of left ventricular enlargement, and the ejection fraction. Acute mitral valve regurgitation caused by a rupture of chordae tendineae should be considered in the differential diagnosis of perioperative acute pulmonary edema.
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Affiliation(s)
- K J Wagner
- Klinik für Anaesthesiologie, Klinikum rechts der Isar, Technische Universität München, Ismaninger Strasse 22, 81675 München, Deutschland.
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Gaur A, Yeon SB, Lewis CW, Manning WJ. Valvular flow abnormalities are often identified by a resting focused Doppler examination performed at the time of stress echocardiography. Am J Med 2003; 114:20-4. [PMID: 12543285 DOI: 10.1016/s0002-9343(02)01381-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
BACKGROUND Patients are usually referred for stress echocardiography to assess whether there is inducible myocardial ischemia. At some centers, a focused Doppler examination is also performed. We sought to determine the clinical value of this additional study by examining how often valvular flow abnormalities were identified that might affect clinical care. METHODS We reviewed 1272 consecutive stress echocardiogram reports from a 1-year period, including 1223 tests that contained focused Doppler data. Important Doppler findings were defined as at least moderate mitral regurgitation, at least mild aortic regurgitation, any aortic or mitral valve stenosis, or any resting left ventricular outflow tract gradient. RESULTS Overall, focused Doppler identified an important Doppler abnormality in 214 patients (17%). At least moderate mitral regurgitation was identified in 67 patients (5%) and at least mild aortic regurgitation was identified in 163 patients (13%). In addition, aortic stenosis (n = 14; 1%), mitral stenosis (n = 5; 0.4%), and resting outflow tract gradient (n = 2; 0.2%) were noted. A prior echocardiogram had been performed at our institution in 317 patients (26%). For this subset, a new important Doppler finding, a two-step change in regurgitant grade, or a one-step change in stenosis severity was noted in 28 patients (9%). Among patients who had a previous study, the prevalence of new findings was the same (9%) in those who had been studied within the previous year as in those whose previous study had been performed more than 2 years before. CONCLUSION Focused Doppler documents valvular flow abnormalities in 17% of patients referred for stress echocardiography, thereby enhancing the potential overall value of the test. The frequency of new findings was independent of the time interval from the previous Doppler study. These data should be considered when clinicians choose a stress imaging modality.
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Affiliation(s)
- Abhishek Gaur
- Harvard-Thorndike Laboratory of the Department of Medicine, Cardiovascular Division, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts 02115, USA
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Fleischmann KE. Noninvasive cardiac testing in the geriatric patient. THE AMERICAN JOURNAL OF GERIATRIC CARDIOLOGY 2003; 12:28-32. [PMID: 12502912 DOI: 10.1111/j.1076-7460.2003.01759.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The use and interpretation of noninvasive cardiac testing in the elderly may differ from that in younger patients due to changes in disease prevalence, normal values, comorbidities, or patient and physician preferences. This paper reviews the experience with several commonly used noninvasive tests such as electrocardiography, exercise testing, and stress imaging with echocardiography or with scintigraphy in geriatric patients. Most commonly used noninvasive tests remain feasible and safe. Data suggest that exercise stress testing is feasible in many elderly patients with a good safety profile and should be considered as a first-line test due to the extra information provided by the duration and hemodynamic response to exercise. Adjunctive imaging may be particularly helpful when the electrocardiogram is uninterpretable or suspect due to underlying baseline abnormalities or when determining the extent or distribution of ischemia is felt to be important.
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Affiliation(s)
- K E Fleischmann
- Cardiovascular Division, University of California, San Francisco Medical Center, San Francisco, CA 94143-0124, USA.
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Abstract
Mitral valve regurgitation (MR) is a frequent Doppler echocardiographic finding in patients after acute myocardial infarction (AMI) and an independent predictor of long-term cardiovascular mortality. Reported risk factors include advanced age, prior myocardial infarction, infarct extension, and recurrent ischemia. During the early phase of AMI, transient ischemic MR is common and rarely causes hemodynamic compromise. However, when several chordae tendineae or a papillary muscle ruptures, acute left atrial and ventricular volume overload ensues, leading to abrupt hemodynamic deterioration with cardiogenic shock. Auscultation may be unrevealing due to decreased turbulence. Hence, the importance of a high index of suspicion for acute MR in any patient with acute pulmonary edema in the setting of AMI, especially if left ventricular systolic function is well preserved. Later, ventricular remodeling may lead to MR through annular dilatation or papillary muscle migration with malcoaptation of the leaflets. The widespread availability, ease of use and non-invasive nature of Doppler echocardiography have made it the standard diagnostic tool for detecting MR. Mechanical reperfusion of the infarct-related artery seems to be superior to fibrinolysis in decreasing its incidence acutely and in the long run. Nevertheless, when acute severe MR occurs, unless rapidly diagnosed and treated, this dreaded complication is associated with high morbidity and mortality. Prompt surgical intervention after hemodynamic stabilization is essential to ensure a good short-term and long-term prognosis. This review discusses the incidence, long-term prognosis, associated risk factors, complex pathophysiology, time of occurrence, clinical manifestations, diagnosis, and management of patients with MR after AMI.
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Affiliation(s)
- Yochai Birnbaum
- The Department of Internal Medicine, University of Texas Medical Branch, Galveston, Texas 77555-0553, USA.
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Rohde LE, Polanczyk CA, Goldman L, Cook EF, Lee RT, Lee TH. Usefulness of transthoracic echocardiography as a tool for risk stratification of patients undergoing major noncardiac surgery. Am J Cardiol 2001; 87:505-9. [PMID: 11230829 DOI: 10.1016/s0002-9149(00)01421-1] [Citation(s) in RCA: 122] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Transthoracic echocardiography (TTE) is frequently ordered before noncardiac surgery, although its ability to predict perioperative cardiac complications is uncertain. To evaluate the incremental information provided by TTE after consideration of clinical data for prediction of cardiac complications after noncardiac surgery, 570 patients who underwent TTE before major noncardiac surgery at a university hospital were studied. Preoperative clinical data and clinical outcomes were collected prospectively according to a structured protocol. TTE data included left ventricular (LV) function, hypertrophy indexes, and Doppler-derived measurements. In univariate analyses, preoperative systolic dysfunction was associated with postoperative myocardial infarction (odds ratio [OR] 2.8, 95% confidence interval [CI] 1.1 to 7.0), cardiogenic pulmonary edema (OR 3.2, 95% CI 1.4 to 7.0), and major cardiac complications (OR 2.4, 95% Cl 1.3 to 4.5). Moderate to severe LV hypertrophy, moderate to severe mitral regurgitation, and increased aortic valve gradient were also associated with major cardiac events (OR 2.3, 95% CI 1.2 to 4.6; OR 2.2, 95% CI 1.1 to 4.3; OR 2.1, 95% CI 1.0 to 4.5, respectively). In logistic regression analysis, models with echocardiographic variables predicted major cardiac complications significantly better than those that included only clinical variables (c statistic 0.73 vs 0.68; p <0.05). Echocardiographic data added significant information for patients at increased risk for cardiac complications by clinical criteria, but not in otherwise low-risk patients. In conclusion, preoperative TTE before noncardiac surgery can provide independent information about the risk of postoperative cardiac complications in selected patients.
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Affiliation(s)
- L E Rohde
- Partners Community HealthCare Inc, Cardiovascular Division, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts 02199, USA
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