共查询到20条相似文献，搜索用时 15 毫秒
1.
Jose Gavara Jose F. Rodriguez-Palomares Filipa Valente Jose V. Monmeneu Maria P. Lopez-Lereu Clara Bonanad Ignacio Ferreira-Gonzalez Bruno Garcia del Blanco Julian Rodriguez-Garcia Maria Mutuberria Elena de Dios Cesar Rios-Navarro Nerea Perez-Sole Paolo Racugno Ana Paya Gema Minana Joaquim Canoves Mauricio Pellicer Vicente Bodi 《JACC: Cardiovascular Imaging》2018,11(10):1448-1457
Objectives
The aim of this study was to evaluate the prognostic value of strain as assessed by tissue tracking (TT) cardiac magnetic resonance (CMR) soon after ST-segment elevation myocardial infarction (STEMI).Background
The prognostic value of myocardial strain as assessed post-STEMI by TT-CMR is unknown.Methods
The authors studied the prognostic value of TT-CMR in 323 patients who underwent CMR 1 week post-STEMI. Global (average of peak segmental values [%]) and segmental (number of altered segments) longitudinal (LS), circumferential, and radial strain were assessed using TT-CMR. Global and segmental strain cutoff values were derived from 32 control patients. CMR-derived left ventricular ejection fraction, microvascular obstruction, and infarct size were determined. Results were validated in an external cohort of 190 STEMI patients.Results
During a median follow-up of 1,085 days, 54 first major adverse cardiac events (MACE), which included 10 cardiac deaths, 25 readmissions for heart failure, and 19 readmissions for reinfarction were documented. MACE was associated with more severe abnormalities in all strain indexes (p < 0.001), although only global LS was an independent predictor (p < 0.001). The MACE rate was higher in patients with a global LS of ≥?11% (22% vs. 9%; p = 0.001). After adjustment for baseline and CMR variables, global LS (hazard ratio [HR]: 1.21; 95% confidence interval [CI]: 1.11 to 1.32; p < 0.001) was associated with MACE. In the external validation cohort, a global LS ≥?11% was seen in a higher proportion of patients with MACE (34% vs. 9%; p < 0.001). Global LS predicted MACE after adjustment for baseline and CMR variables (HR: 1.18; 95% CI: 1.04 to 1.33; p = 0.008). The addition of global LS to the multivariate models, including baseline and CMR variables, did not significantly improve the categorical net reclassification improvement index in either the study group (?0.015; p = 0.7) or in the external validation cohort (?0.019; p = 0.9).Conclusions
TT-CMR provided prognostic information soon after STEMI. However, it did not substantially improve risk reclassification beyond traditional CMR indexes. 相似文献2.
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Raquel P. Amier Martijn W. Smulders Wiesje M. van der Flier Sebastiaan C.A.M. Bekkers Alwin Zweerink Cornelis P. Allaart Ahmet Demirkiran Sebastiaan T. Roos Paul F.A. Teunissen Yolande Appelman Niels van Royen Raymond J. Kim Albert C. van Rossum Robin Nijveldt 《JACC: Cardiovascular Imaging》2018,11(12):1773-1781
Objectives
This study investigated the prevalence of silent myocardial infarction (MI) in patients presenting with first acute myocardial infarction (AMI), and its relation with mortality and major adverse cardiovascular events (MACE) at long-term follow-up.Background
Up to 54% of MI occurs without apparent symptoms. The prevalence and long-term prognostic implications of previous silent MI in patients presenting with seemingly first AMI are unclear.Methods
A 2-center observational longitudinal study was performed in 392 patients presenting with first AMI between 2003 and 2013, who underwent late gadolinium enhancement cardiac magnetic resonance (LGE-CMR) examination within 14 days post-AMI. Silent MI was assessed on LGE-CMR images by identifying regions of hyperenhancement with an ischemic distribution pattern in other territories than the AMI. Mortality and MACE (all-cause death, reinfarction, coronary artery bypass grafting, and ischemic stroke) were assessed at 6.8 ± 2.9 years follow-up.Results
Thirty-two patients (8.2%) showed silent MI on LGE-CMR. Compared with patients without silent MI, mortality risk was higher in patients with silent MI (hazard ratio: 3.87; 95% confidence interval: 1.21 to 12.38; p = 0.023), as was risk of MACE (hazard ratio: 3.10; 95% confidence interval: 1.22 to 7.86; p = 0.017), both independent from clinical and infarction-related characteristics.Conclusions
Silent MI occurred in 8.2% of patients presenting with first AMI and was independently related to poorer long-term clinical outcome, with a more than 3-fold risk of mortality and MACE. Silent MI holds prognostic value over important traditional prognosticators in the setting of AMI, indicating that these patients represent a high-risk subgroup warranting clinical awareness. 相似文献4.
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Rolf Symons Gianluca Pontone Juerg Schwitter Marco Francone Juan Fernando Iglesias Andrea Barison Jaroslaw Zalewski Laura de Luca Sophie Degrauwe Piet Claus Marco Guglielmo Jadwiga Nessler Iacopo Carbone Giovanni Ferro Monika Durak Paolo Magistrelli Alfonso Lo Presti Giovanni Donato Aquaro Pier Giorgio Masci 《JACC: Cardiovascular Imaging》2018,11(6):813-825
Objectives
This study sought to investigate whether early post-infarction cardiac magnetic resonance (CMR) parameters provide additional long-term prognostic value beyond traditional outcome predictors in ST-segment elevation myocardial infarction (STEMI) patients.Background
Long-term prognostic significance of CMR in STEMI patients has not been assessed yet.Methods
This was a longitudinal study from a multicenter registry that prospectively included STEMI patients undergoing CMR after infarction. Between May 2003 and August 2015, 810 revascularized STEMI patients were included. CMR was performed at a median of 4 days after STEMI. Infarct size, microvascular obstruction (MVO), and left ventricular (LV) volumes and function were measured. Primary endpoint was a composite of all death and decompensated heart failure (HF).Results
During median follow-up of 5.5 years (range 1.0 to 13.1 years), primary endpoint occurred in 99 patients (39 deaths and 60 HF hospitalization). MVO was a strong predictor of the composite endpoint after correction for important clinical, CMR, and angiographic parameters, including age, LV systolic function, and infarct size. The independent prognostic value of MVO was confirmed in all multivariate models irrespective of whether it was included as a dichotomous (presence of MVO, hazard ratio [HR]: 1.985 to 1.995), continuous (MVO extent as % LV, HR: 1.095 to 1.097), or optimal cutoff value (MVO extent ≥2.6% of LV; HR: 3.185 to 3.199; p < 0.05 for all). MVO extent ≥2.6% of LV was a strong independent predictor of all death (HR: 2.055; 95% confidence interval: 1.076 to 3.925; p = 0.029) and HF hospitalization (HR: 5.999; 95% confidence interval: 3.251 to 11.069; p < 0.001). Finally, MVO extent ≥2.6% of LV provided incremental prognostic value over traditional outcome predictors (net reclassification improvement index: 0.16 to 0.30; p < 0.05 for all models).Conclusions
Early post-infarction CMR-based MVO is a strong independent prognosticator in revascularized STEMI patients. Remarkably, MVO extent ≥2.6% of LV improved long-term risk stratification over traditional outcome predictors. 相似文献6.
Marthe A.J. Becker Jan H. Cornel Peter M. van de Ven Albert C. van Rossum Cornelis P. Allaart Tjeerd Germans 《JACC: Cardiovascular Imaging》2018,11(9):1274-1284
Objectives
This review and meta-analysis reviews the prognostic value of cardiac magnetic resonance (CMR) in nonischemic dilated cardiomyopathy (DCM).Background
Late gadolinium-enhanced (LGE) CMR is a noninvasive method to determine the underlying cause of DCM and previous studies reported the prognostic value of the presence of LGE to identify patients at risk of major adverse cardiovascular events.Methods
PubMed was searched for studies describing the prognostic implication of LGE in patients with DCM for the specified endpoints cardiovascular mortality, major ventricular arrhythmic events including appropriate implantable cardioverter-defibrillator therapy, rehospitalization for heart failure, and left ventricular reverse remodeling.Results
Data from 34 studies were included, with a total of 4,554 patients. Contrast enhancement was present in 44.8% of DCM patients. Patients with LGE had increased cardiovascular mortality (odds ratio [OR]: 3.40; 95% confidence interval [CI]: 2.04 to 5.67), ventricular arrhythmic events (OR: 4.52; 95% CI: 3.41 to 5.99), and rehospitalization for heart failure (OR: 2.66; 95% CI: 1.67 to 4.24) compared with those without LGE. Moreover, the absence of LGE predicted left ventricular reverse remodeling (OR: 0.15; 95% CI: 0.06 to 0.36).Conclusions
The presence of LGE on CMR substantially worsens prognosis for adverse cardiovascular events in DCM patients, and the absence indicates left ventricular reverse remodeling. 相似文献7.
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Michael V. Holmes Iona Y. Millwood Christiana Kartsonaki Michael R. Hill Derrick A. Bennett Ruth Boxall Yu Guo Xin Xu Zheng Bian Ruying Hu Robin G. Walters Junshi Chen Mika Ala-Korpela Sarah Parish Robert J. Clarke Richard Peto Rory Collins Liming Li Zhengming Chen 《Journal of the American College of Cardiology》2018,71(6):620-632
Background
Blood lipids are established risk factors for myocardial infarction (MI), but uncertainty persists about the relevance of lipids, lipoprotein particles, and circulating metabolites for MI and stroke subtypes.Objectives
This study sought to investigate the associations of plasma metabolic markers with risks of incident MI, ischemic stroke (IS), and intracerebral hemorrhage (ICH).Methods
In a nested case-control study (912 MI, 1,146 IS, and 1,138 ICH cases, and 1,466 common control subjects) 30 to 79 years of age in China Kadoorie Biobank, nuclear magnetic resonance spectroscopy measured 225 metabolic markers in baseline plasma samples. Logistic regression was used to estimate adjusted odds ratios (ORs) for a 1-SD higher metabolic marker.Results
Very low-, intermediate-, and low-density lipoprotein particles were positively associated with MI and IS. High-density lipoprotein (HDL) particles were inversely associated with MI apart from small HDL. In contrast, no lipoprotein particles were associated with ICH. Cholesterol in large HDL was inversely associated with MI and IS (OR: 0.79 and 0.88, respectively), whereas cholesterol in small HDL was not (OR: 0.99 and 1.06, respectively). Triglycerides within all lipoproteins, including most HDL particles, were positively associated with MI, with a similar pattern for IS. Glycoprotein acetyls, ketone bodies, glucose, and docosahexaenoic acid were associated with all 3 diseases. The 225 metabolic markers showed concordant associations between MI and IS, but not with ICH.Conclusions
Lipoproteins and lipids showed similar associations with MI and IS, but not with ICH. Within HDL particles, cholesterol concentrations were inversely associated, whereas triglyceride concentrations were positively associated with MI. Glycoprotein acetyls and several non–lipid-related metabolites associated with all 3 diseases. 相似文献9.
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Marc R. Dweck Ronan Abgral Maria Giovanna Trivieri Philip M. Robson Nicolas Karakatsanis Venkatesh Mani Anna Palmisano Marc A. Miller Anuradha Lala Helena L. Chang Javier Sanz Johanna Contreras Jagat Narula Valentin Fuster Maria Padilla Zahi A. Fayad Jason C. Kovacic 《JACC: Cardiovascular Imaging》2018,11(1):94-107
Objectives
The purpose of this study was to explore the diagnostic usefulness of hybrid cardiac magnetic resonance (CMR) and positron emission tomography (PET) using 18F-fluorodeoxyglucose (FDG) for active cardiac sarcoidosis.Background
Active cardiac sarcoidosis (aCS) is underdiagnosed and has a high mortality.Methods
Patients with clinical suspicion of aCS underwent hybrid CMR/PET with late gadolinium enhancement (LGE) and FDG to assess the pattern of injury and disease activity, respectively. Patients were categorized visually as magnetic resonance (MR)+PET+ (characteristic LGE aligning exactly with increased FDG uptake), MR+PET? (characteristic LGE but no increased FDG), MR?PET? (neither characteristic LGE nor increased FDG), and MR?PET+ (increased FDG uptake in absence of characteristic LGE) and further characterized as aCS+ (MR+PET+) or aCS? (MR+PET?, MR?PET?, MR?PET+). FDG uptake was quantified using maximum target-to-normal-myocardium ratio and the net uptake rate (Ki) from dynamic Patlak analysis. Receiver-operating characteristic methods were used to identify imaging biomarkers for aCS. FDG PET was assessed using computed tomography/PET in 19 control subjects with healthy myocardium.Results
A total of 25 patients (12 males; 54.9 ± 9.8 years of age) were recruited prospectively; 8 were MR+PET+, suggestive of aCS; 1 was MR+PET?, consistent with inactive cardiac sarcoidosis; and 8 were MR?PET?, with no imaging evidence of cardiac sarcoidosis. Eight patients were MR?PET+ (6 with global myocardial FDG uptake, 2 with focal-on-diffuse uptake); they demonstrated distinct Ki values and hyperintense maximum standardized uptake value compared with MR+PET+ patients. Similar hyperintense patterns of global (n = 9) and focal-on-diffuse (n = 2) FDG uptake were also observed in control patients, suggesting physiological myocardial uptake. Maximum target-to-normal-myocardium ratio values were higher in the aCS+ group (p < 0.001), demonstrating an area under the curve of 0.98 on receiver-operating characteristic analysis for the detection of aCS, with an optimal maximum target-to-normal myocardium ratio threshold of 1.2 (Youden index: 0.94).Conclusions
CMR/PET imaging holds major promise for the diagnosis of aCS, providing incremental information about both the pattern of injury and disease activity in a single scan. (In Vivo Molecular Imaging [MRI] of Atherothrombotic Lesions; NCT01418313) 相似文献13.
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Ayman Elbadawi Islam Y. Elgendy Karim Mahmoud Amr F. Barakat Amgad Mentias Ahmed H. Mohamed Gbolahan O. Ogunbayo Michael Megaly Marwan Saad Mohamed A. Omer David Paniagua J. Dawn Abbott Hani Jneid 《JACC: Cardiovascular Interventions》2019,12(18):1825-1836
ObjectivesThe aim of this study was to examine the temporal trends and outcomes of mechanical complications after myocardial infarction in the contemporary era.BackgroundData regarding temporal trends and outcomes of mechanical complications after ST-segment elevation myocardial infarction (STEMI) and non–ST-segment elevation myocardial infarction (NSTEMI) are limited in the contemporary era.MethodsThe National Inpatient Sample database (2003 to September 2015) was queried to identify all STEMI and NSTEMI hospitalizations. Temporal trends and outcomes of mechanical complications after STEMI and NSTEMI, including papillary muscle rupture, ventricular septal defect, and free wall rupture, were described.ResultsThe analysis included 3,951,861 STEMI and 5,114,270 NSTEMI hospitalizations. Mechanical complications occurred in 10,726 of STEMI hospitalizations (0.27%) and 3,041 of NSTEMI hospitalizations (0.06%), with no changes in trends (p = 0.13 and p = 0.83, respectively). The rates of in-hospital mortality in patients with mechanical complications were 42.4% after STEMI and 18.0% after NSTEMI, with no significant trend changes (p = 0.62 and p = 0.12, respectively). After multivariate adjustment, patients who had mechanical complications after myocardial infarction had higher in-hospital mortality, cardiogenic shock, acute kidney injury, hemodialysis, and respiratory complications compared with those without mechanical complications. Predictors of lower mortality in patients with mechanical complications who developed cardiogenic shock included surgical repair in the STEMI and NSTEMI cohorts and percutaneous coronary intervention in the STEMI cohort.ConclusionsContemporary data from a large national database show that the rates of mechanical complications are low in patients presenting with STEMI and NSTEMI. Post–myocardial infarction mechanical complications continue to be associated with high mortality rates, which did not improve during the study period. 相似文献
17.
Dominik Buckert Simon Witzel Jürgen M. Steinacker Wolfgang Rottbauer Peter Bernhardt 《JACC: Cardiovascular Imaging》2018,11(7):987-996
Objectives
The purpose of this study was the prospective and randomized evaluation of cardiovascular endpoints and quality of life in patients with stable coronary artery disease comparing a cardiac magnetic resonance (CMR)–based management strategy with a coronary angiography–based approach.Background
Evidence from trials prospectively evaluating the role of CMR in clinical pathways and decision processes is limited.Methods
Patients with symptomatic CAD were randomized to diagnostic coronary angiography (group 1) or adenosine stress CMR (group 2). The primary endpoint was the composite of cardiac death and nonfatal myocardial infarction. Quality of life was assessed using the Seattle Angina Questionnaire at baseline and during follow-up.Results
Two hundred patients were enrolled. In group 1, 45 revascularizations (45.9%) were performed. In group 2, 27 patients (28.1%) were referred to revascularization because of ischemia on CMR. At 12-month follow-up, 7 primary events occurred: 3 in group 1 (event rate 3.1%) and 4 in group 2 (event rate 4.2%), with no statistically significant difference (p = 0.72). Within the next 2 years, 6 additional events could be observed, giving 4 events in group 1 and 9 events in group 2 (event rate 4.1% vs. 9.4%; p = 0.25). Group 2 showed significant quality-of-life improvement after 1 year in comparison to group 1.Conclusions
A CMR-based management strategy for patients with stable coronary artery disease was safe, reduced revascularization procedures, and resulted in better quality of life at 12-month follow-up, though noninferiority could not be proved. Optimal timing for reassessment remains to be investigated. (Magnetic Resonance Adenosine Perfusion Imaging as Gatekeeper of Invasive Coronary Intervention [MAGnet]; NCT02580851) 相似文献18.
Pierluigi Tricoci L. Kristin Newby Robert M. Clare Sergio Leonardi C. Michael Gibson Robert P. Giugliano Paul W. Armstrong Frans Van de Werf Gilles Montalescot David J. Moliterno Claes Held Philip E. Aylward Lars Wallentin Robert A. Harrington Eugene Braunwald Kenneth W. Mahaffey Harvey D. White 《JACC: Cardiovascular Interventions》2018,11(9):856-864
Objectives
In 13,038 patients with non–ST-segment elevation acute coronary syndrome undergoing index percutaneous coronary intervention (PCI) in the EARLY ACS (Early Glycoprotein IIb/IIIa Inhibition in Non–ST-Segment Elevation Acute Coronary Syndrome) and TRACER (Thrombin Receptor Antagonist for Clinical Event Reduction in Acute Coronary Syndrome) trials, the relationship between PCI-related myocardial infarction (MI) and 1-year mortality was assessed.Background
The definition of PCI-related MI is controversial. The third universal definition of PCI-related MI requires cardiac troponin >5 times the 99th percentile of the normal reference limit from a stable or falling baseline and PCI-related clinical or angiographic complications. The definition from the Society for Cardiovascular Angiography and Interventions (SCAI) requires creatine kinase–MB elevation >10 times the upper limit of normal (or 5 times if new electrocardiographic Q waves are present). Implications of these definitions on prognosis, prevalence, and implementation are not established.Methods
In our cohort of patients undergoing PCI, PCI-related MIs were classified using the third universal type 4a MI definition and SCAI criteria. In the subgroup of patients included in the angiographic core laboratory (ACL) substudy of EARLY ACS (n = 1,401) local investigator– versus ACL-reported angiographic complications were compared.Results
Altogether, 2.0% of patients met third universal definition of PCI-related MI criteria, and 1.2% met SCAI criteria. One-year mortality was 3.3% with the third universal definition (hazard ratio: 1.96; 95% confidence interval: 1.24 to 3.10) and 5.3% with SCAI criteria (hazard ratio: 2.79; 95% confidence interval: 1.69 to 4.58; p < 0.001). Agreement between ACL and local investigators in detecting angiographic complications during PCI was overall moderate (κ = 0.53).Conclusions
The third universal definition of MI and the SCAI definition were both associated with significant risk for mortality at 1 year. Suboptimal concordance was observed between ACL and local investigators in identifying patients with PCI complications detected on angiography. (Trial to Assess the Effects of Vorapaxar [SCH 530348; MK-5348] in Preventing Heart Attack and Stroke in Participants With Acute Coronary Syndrome [TRA·CER] [Study P04736]; NCT00527943; EARLY ACS: Early Glycoprotein IIb/IIIa Inhibition in Patients With Non–ST-Segment Elevation Acute Coronary Syndrome [Study P03684AM2]; NCT00089895) 相似文献19.
Mohamed Abdel-Wahab Mohammad Abdelghani Yosuke Miyazaki Erik W. Holy Constanze Merten Dirk Zachow Pim Tonino Marcel C.M. Rutten Frans N. van de Vosse Marie-Angele Morel Yoshinobu Onuma Patrick W. Serruys Gert Richardt Osama I. Soliman 《JACC: Cardiovascular Interventions》2018,11(3):287-297