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1.
Am Heart J ; 267: 33-43, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37890547

RESUMO

Survival with operable breast cancer has improved markedly in recent decades, however, treatment-related cardiovascular toxicities threaten to offset these gains. Ovarian function suppression paired with aromatase inhibition, for premenopausal women with hormone receptor (HR)-positive breast cancer, is a newer widely adopted therapy with the potential for significant long-term cardiovascular toxicity. Abrupt estrogen deprivation for non-cancer reasons is associated with accelerated coronary artery disease. Women with breast cancer treated with aromatase inhibition in addition to ovarian function suppression experience a dual hit with regards to estrogen exposure. The CaRdiac Outcomes With Near-complete estrogen deprivation (CROWN) study seeks to understand the early, subclinical natural history of cardiovascular compromise in young women undergoing near-complete estrogen deprivation (NCED) therapy. It is critical to understand the early subclinical development of cardiovascular disease to identify a window for therapeutic intervention before overt cardiovascular events occur. This three-site regional study (Atrium Health Wake Forest, Duke, and Virginia Commonwealth University) uses serial stress cardiac magnetic resonance (CMR) imaging and cardiac computed tomography angiography (CCTA) obtained during the initial two years of NCED therapy to study myocardial prefusion reserve (MPR), large cardiovascular vessel changes, left ventricular function, and other cardiovascular parameters. The CROWN cohort will consist of 90 premenopausal women with breast cancer, 67 with HR-positive disease receiving NCED and 23 comparators with HR-negative disease. Participants will undergo three annual CMR scans and 2 CCTA scans during the 2-year study period. After initial activation hurdles, accrual has been brisk, and the study is expected to complete accrual in December 2024. Efforts are in place to encourage participant retention with the study primary outcome, change in MPR between the two groups, to be reported in 2026 to 2027. The results of this study will enable premenopausal women with breast cancer to balance the health burdens of cancer at a young age and treatment-related cardiovascular morbidity. Finally, the tools developed here can be utilized to study cardiovascular risk across a range of cancer types and cancer therapies with the ultimate goals of both developing generalizable risk stratification tools as well as validating interventions which prevent overt cardiovascular compromise.


Assuntos
Neoplasias da Mama , Sistema Cardiovascular , Humanos , Feminino , Neoplasias da Mama/tratamento farmacológico , Neoplasias da Mama/patologia , Aromatase/uso terapêutico , Estrogênios/uso terapêutico , Coração
2.
J Am Coll Cardiol ; 82(19): 1828-1838, 2023 11 07.
Artigo em Inglês | MEDLINE | ID: mdl-37914512

RESUMO

BACKGROUND: GadaCAD2 was 1 of 2 international, multicenter, prospective, Phase 3 clinical trials that led to U.S. Food and Drug Administration approval of gadobutrol to assess myocardial perfusion and late gadolinium enhancement (LGE) in adults with known or suspected coronary artery disease (CAD). OBJECTIVES: A prespecified secondary objective was to determine if stress perfusion cardiovascular magnetic resonance (CMR) was noninferior to single-photon emission computed tomography (SPECT) for detecting significant CAD and for excluding significant CAD. METHODS: Participants with known or suspected CAD underwent a research rest and stress perfusion CMR that was compared with a gated SPECT performed using standard clinical protocols. For CMR, adenosine or regadenoson served as vasodilators. The total dose of gadobutrol was 0.1 mmol/kg body weight. The standard of reference was a 70% stenosis defined by quantitative coronary angiography (QCA). A negative coronary computed tomography angiography could exclude CAD. Analysis was per patient. CMR, SPECT, and QCA were evaluated by independent central core lab readers blinded to clinical information. RESULTS: Participants were predominantly male (61.4% male; mean age 58.9 ± 10.2 years) and were recruited from the United States (75.0%), Australia (14.7%), Singapore (5.7%), and Canada (4.6%). The prevalence of significant CAD was 24.5% (n = 72 of 294). Stress perfusion CMR was statistically superior to gated SPECT for specificity (P = 0.002), area under the receiver operating characteristic curve (P < 0.001), accuracy (P = 0.003), positive predictive value (P < 0.001), and negative predictive value (P = 0.041). The sensitivity of CMR for a 70% QCA stenosis was noninferior and nonsuperior to gated SPECT. CONCLUSIONS: Vasodilator stress perfusion CMR, as performed with gadobutrol 0.1 mmol/kg body weight, had superior diagnostic accuracy for diagnosis and exclusion of significant CAD vs gated SPECT.


Assuntos
Doença da Artéria Coronariana , Imagem de Perfusão do Miocárdio , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Peso Corporal , Constrição Patológica , Meios de Contraste , Angiografia Coronária/métodos , Doença da Artéria Coronariana/diagnóstico por imagem , Doença da Artéria Coronariana/patologia , Gadolínio , Imageamento por Ressonância Magnética/métodos , Espectroscopia de Ressonância Magnética , Imagem de Perfusão do Miocárdio/métodos , Perfusão , Valor Preditivo dos Testes , Estudos Prospectivos , Tomografia Computadorizada de Emissão de Fóton Único/métodos , Vasodilatadores
3.
JACC CardioOncol ; 4(2): 149-165, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-35818559

RESUMO

There are nearly 17 million cancer survivors in the United States, including those who are currently receiving cancer therapy with curative intent and expected to be long-term survivors, as well as those with chronic cancers such as metastatic disease or chronic lymphocytic leukemia, who will receive cancer therapy for many years. Current clinical practice guidelines focus on lifestyle interventions, such as exercise and healthy eating habits, but generally do not address management strategies for clinicians or strategies to increase adherence to medications. We discuss 3 cardiometabolic comorbidities among cancer survivors and present the prevalence of comorbidities prior to a cancer diagnosis, treatment of comorbidities during cancer therapy, and management considerations of comorbidities in long-term cancer survivors or those on chronic cancer therapy. Approaches to support medication adherence and potential methods to enhance a team approach to optimize care of the individual with cancer across the continuum of disease are discussed.

4.
NMR Biomed ; 34(10): e4580, 2021 10.
Artigo em Inglês | MEDLINE | ID: mdl-34251717

RESUMO

Despite clinical use of late gadolinium enhancement (LGE) for two decades, an efficient, robust fat suppression (FS) technique still does not exist for this CMR mainstay. In ischemic and non-ischemic heart disease, differentiating fibrotic tissue from infiltrating and adjacent fat is crucial. Multiple groups have independently developed an FS technique for LGE, double spectral attenuated inversion recovery (DSPAIR), but no comprehensive evaluation was performed. This study aims to fill this gap. DSPAIR uses two SPAIR pulses and one non-selective IR pulse to enable FS LGE, including compatibility with phase sensitive inversion recovery (PSIR). We implemented a magnitude (MAGN) and a PSIR variant and compared them with LGE without FS (CONTROL) and with spectral presaturation with inversion recovery (SPIR) in simulations, phantoms, and patients. Fat magnetization by SPIR, MAGN DSPAIR, and PSIR DSPAIR was simulated as a function of pulse B1 , readout (RO) pulse number, and fat TI . A phantom with fat, fibrosis, and myocardium compartments was imaged using all FS methods and modifying pulse B1 , RO pulse number, and heart rate. Signal was measured in SNR units. Fat, myocardium, and fibrosis SNR and fibrosis-to-fat CNR were obtained. Patient images were acquired with all FS techniques. Fat, myocardium, and fibrosis SNR, fibrosis-to-fat CNR, and image and FS quality were assessed. In the phantom, both DSPAIR variants provided superior FS compared with SPIR, independent of heart rate and RO pulse number. MAGN DSPAIR reduced fat signal by 99% compared with CONTROL, PSIR DSPAIR by 116%, and SPIR by 67% (25 RO pulses). In patients, both DSPAIR variants substantially reduced fat signal (MAGN DSPAIR by 87.1% ± 10.0%, PSIR DSPAIR by 130.5% ± 36.3%), but SPIR did not (35.8% ± 25.5%). FS quality was good to excellent for MAGN and PSIR DSPAIR, and moderate to poor for SPIR. DSPAIR provided highly effective FS across a wide range of parameters. PSIR DSPAIR performed best.


Assuntos
Gadolínio/química , Lipídeos/química , Imageamento por Ressonância Magnética , Displasia Arritmogênica Ventricular Direita/diagnóstico por imagem , Simulação por Computador , Humanos , Pessoa de Meia-Idade , Imagens de Fantasmas , Razão Sinal-Ruído
5.
JACC Clin Electrophysiol ; 7(9): 1134-1144, 2021 09.
Artigo em Inglês | MEDLINE | ID: mdl-33933413

RESUMO

OBJECTIVES: This study aimed to characterize the natural progression and recurrence of new-onset postoperative atrial fibrillation (POAF) during an intermediate-term follow-up post cardiac surgery by using continuous event monitoring. BACKGROUND: New-onset POAF is a common complication after cardiac surgery and is associated with an increased risk for stroke and all-cause mortality. Long-term data on new POAF recurrence and anticoagulation remain sparse. METHODS: This is a single-center, prospective observational study evaluating 42 patients undergoing cardiac surgery and diagnosed during indexed admission with new-onset, transient, POAF between May 2015 and December 2019. Before discharge, all patients received implantable loop recorders for continuous monitoring. Study outcomes were the presence and timing of atrial fibrillation (AF) recurrence (first, second, and more than 2 AF recurrences), all-cause mortality, and cerebrovascular accidents. A "per-month interval" analysis of proportion of patients with any AF recurrence was assessed and reported per period of follow-up time. Kaplan-Meier analysis was used to calculate the time to first AF recurrence and report the first AF recurrence rates. RESULTS: Forty-two patients (mean age 67.6 ± 9.6 years, 74% male, mean CHADS2-VASc 3.5 ± 1.5) were evaluated during a mean follow-up of 1.7 ± 1.2 years. AF recurrence after discharge occurred in 30 patients (71%) and of those, 59% had AF episodes equal to or longer than 5 minutes (median AF duration at 1 month was 32 minutes [interquartile range 5.5-106], whereas median AF duration beyond 1 month was 15 minutes [interquartile range 6.3-49]). Twenty-four (80%) of the 30 patients had their first AF recurrence within the first month. During months 1 to 12 follow-up, 76% of patients had any AF recurrences (10% had their first AF recurrence, 43% had their second AF recurrence, and 23% had more than 2 AF recurrences). Beyond 1 year of follow-up, 30% of patients had any AF recurrences (10% had their first AF recurrence, 7% had their second AF recurrence, and 13% had more than 2 AF recurrences). Using Kaplan-Meier analysis, the median time to first AF recurrence was 0.83 months (95% CI: 0.37 to 6) and the detection of first AF recurrence rate at 1, 3, 6, 12, 18, and 24 months was 57.1%, 59.5%, 64.3%, 64.3%, 67.3%, and 73.2%, respectively. During follow-up, there was 1 death ([-] AF recurrence) and 2 cerebrovascular accidents ([+] AF recurrence). CONCLUSIONS: In this study of continuous monitoring with implantable loop recorders, the recurrence of AF in patients who develop transient POAF is common in the first month postoperatively. Of the patients who developed postoperative AF, 76% had any recurrence in months 1 to 12, and 30% had any recurrence beyond 1-year follow-up. Current guidelines recommend anticoagulation for POAF for 30 days. The results of this study warrant further investigation into continued monitoring and longer-term anticoagulation in this population within the context of our findings that AF duration was <30 minutes beyond 1 month.


Assuntos
Fibrilação Atrial , Procedimentos Cirúrgicos Cardíacos , Acidente Vascular Cerebral , Idoso , Fibrilação Atrial/epidemiologia , Fibrilação Atrial/etiologia , Procedimentos Cirúrgicos Cardíacos/efeitos adversos , Feminino , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias/epidemiologia , Acidente Vascular Cerebral/epidemiologia , Acidente Vascular Cerebral/etiologia
6.
Curr Treat Options Cardiovasc Med ; 21(6): 30, 2019 May 31.
Artigo em Inglês | MEDLINE | ID: mdl-31152324

RESUMO

PURPOSE OF REVIEW: To review cardiotoxicity of and strategies to prevent cardiotoxicity from anthracyclines and anti-HER2 agents used to treat breast cancer. RECENT FINDINGS: Although not common, cardiotoxicity from anthracyclines and anti-HER2 therapies is a major consideration in the use of these agents, especially in the adjuvant setting. Modifications in anthracycline agent, dosing, or schedule or use of Dexrazoxane have been shown to ameliorate the mostly irreversible cardiotoxicity from anthracyclines. Dose delays have been the primary means of addressing the possibly reversible cardiotoxicity from the anti-HER2 agent, trastuzumab, whereas the other anti-HER2 therapies, pertuzumab, lapatinib, and neratinib, are relatively nontoxic to the myocardium. Data from recent randomized clinical trials suggest that the use of angiotensin-converting enzyme inhibitors (ACEi), angiotensin receptor blockers (ARBs), and beta blockers may prevent subclinical cardiotoxicity, as measured by decline in the left ventricular ejection fraction, associated with these agents. Longer-term follow-up will be needed to confirm their role in prevention of symptomatic cardiomyopathy and subsequent cardiovascular disease in women with breast cancer. Preliminary evidence suggests that the use of ACEi, ARB, and beta blockers during treatment with anthracyclines and trastuzumab may prevent subsequent cardiomyopathy. Larger trials with meaningful clinical endpoints are needed.

7.
J Cardiovasc Magn Reson ; 19(1): 34, 2017 Mar 24.
Artigo em Inglês | MEDLINE | ID: mdl-28335788

RESUMO

BACKGROUND: Multiple gated acquisition scanning (MUGA) is a common imaging modality for baseline and serial assessment of left ventricular ejection fraction (LVEF) for cardiotoxicity risk assessment prior to, surveillance during, and surveillance after administration of potentially cardiotoxic cancer treatment. The objective of this study was to compare the accuracy of left ventricular ejection fractions (LVEF) obtained by contemporary clinical multiple gated acquisition scans (MUGA) with reference LVEFs from cardiovascular magnetic resonance (CMR) in consecutive patients with cancer. METHODS: In a cross-sectional study, we compared MUGA clinical and CMR reference LVEFs in 75 patients with cancer who had both studies within 30 days. Misclassification was assessed using the two most common thresholds of LVEF used in cardiotoxicity clinical studies and practice: 50 and 55%. RESULTS: Compared to CMR reference LVEFs, MUGA clinical LVEFs were only lower by a mean of 1.5% (48.5% vs. 50.0%, p = 0.17). However, the limits of agreement between MUGA clinical and CMR reference LVEFs were wide at -19.4 to 16.5%. At LVEF thresholds of 50 and 55%, there was misclassification of 35 and 20% of cancer patients, respectively. CONCLUSIONS: MUGA clinical LVEFs are only modestly accurate when compared with CMR reference LVEFs. These data have significant implications on clinical research and patient care of a population with, or at risk for, cardiotoxicity.


Assuntos
Antineoplásicos/efeitos adversos , Cardiopatias/diagnóstico por imagem , Interpretação de Imagem Assistida por Computador/métodos , Imagem Cinética por Ressonância Magnética/métodos , Neoplasias/tratamento farmacológico , Cintilografia/métodos , Volume Sistólico/efeitos dos fármacos , Função Ventricular Esquerda/efeitos dos fármacos , Idoso , Técnicas de Imagem de Sincronização Cardíaca , Cardiotoxicidade , Estudos Transversais , Feminino , Cardiopatias/induzido quimicamente , Cardiopatias/fisiopatologia , Humanos , Masculino , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Reprodutibilidade dos Testes , Fatores de Tempo
8.
Radiology ; 280(3): 723-34, 2016 09.
Artigo em Inglês | MEDLINE | ID: mdl-26986048

RESUMO

Purpose To explore the prognostic value of cardiac magnetic resonance (MR) imaging in predicting postoperative cardiac death in patients with severe functional tricuspid regurgitation (TR). Materials and Methods This study was approved by the institutional review board, and written informed consent was obtained from all patients. Prospectively collected data included cardiac MR images, New York Heart Association (NYHA) functional class, a comprehensive laboratory test, and clinical events over the follow-up period in 75 consecutive patients (61 women and 14 men; mean age ± standard deviation, 59 years ± 9) undergoing corrective surgery for severe functional TR. Cox proportional hazards models were used to assess the association between cardiac MR parameters and outcomes. Results During a median follow-up period of 57 months (range, 21-82 months), cardiac mortality and all-cause mortality were 17.3% and 26.7%, respectively, with a surgical mortality of 6.7%. Cardiac death risk was lower with a higher right ventricular (RV) ejection fraction (EF) on cardiac MR images (hazard ratio per 5% higher EF = 0.790, P = .048). By adjusting for confounding variables, RV EF remained a significant predictor for cardiac death (P < .05) and major postoperative cardiac events (P < .05). The area under the receiver operating characteristic curve (AUC) confirmed the incremental role of RV EF on cardiac MR images in the prediction of postoperative cardiac death (AUC, 0.681-0.771; P = .041) and major postoperative cardiac events (AUC, 0.660-0.745; P = .044) on top of NYHA class. RV end-systolic volume index was also independently associated with these outcomes but failed to increase the AUC significantly. Conclusion Preoperative assessment of cardiac MR imaging-based RV EF provides independent and incremental prognostic information in patients undergoing corrective surgery for severe functional TR. (©) RSNA, 2016 Online supplemental material is available for this article.


Assuntos
Imageamento por Ressonância Magnética/métodos , Insuficiência da Valva Tricúspide/diagnóstico por imagem , Insuficiência da Valva Tricúspide/fisiopatologia , Ecocardiografia , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Prognóstico , Estudos Prospectivos , Reprodutibilidade dos Testes , Taxa de Sobrevida , Resultado do Tratamento , Insuficiência da Valva Tricúspide/cirurgia
9.
Radiology ; 271(1): 56-64, 2014 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-24475814

RESUMO

PURPOSE: To compare the utility and efficacy of stress cardiac magnetic resonance (MR) imaging and stress echocardiography in an emergency setting in patients with acute chest pain (CP) and intermediate risk of coronary artery disease (CAD). MATERIALS AND METHODS: Written informed consent was obtained from all patients. This HIPAA-compliant study was approved by the institutional review board for research ethics. Sixty patients without history of CAD presented to the emergency department with intermediate-risk acute CP and were prospectively enrolled. Patients underwent both stress cardiac MR imaging and stress echocardiography in random order within 12 hours of presentation. Stress imaging results were interpreted clinically immediately (blinded interpretation was performed months later), and coronary angiography was performed if either result was abnormal. CAD was considered significant if it was identified at angiography (narrowing >50% ) or if a cardiac event (death or myocardial infarction) occurred during follow-up (mean, 14 months ± 5 [standard deviation]). McNemar test was used to compare the diagnostic accuracy of techniques. RESULTS: Stress cardiac MR imaging and stress echocardiography had similar specificity, accuracy, and positive and negative predictive values (92% vs 96%, 93% vs 88%, 67% vs 60%, and 100% vs 91%, respectively, for clinical interpretation; 90% vs 92%, 90% vs 88%, 58% vs 56%, and 98% vs 94%, respectively, for blinded interpretation). Stress cardiac MR imaging had higher sensitivity at clinical interpretation (100% vs 38%, P = .025), which did not reach significance at blinded interpretation (88% vs 63%, P = .31). However, multivariable logistic regression analysis showed stress cardiac MR imaging to be the strongest independent predictor of significant CAD (P = .002). CONCLUSION: In patients presenting to the emergency department with intermediate-risk CP, adenosine stress cardiac MR imaging performed within 12 hours of presentation is safe and potentially has improved performance characteristics compared with stress echocardiography. Online supplemental material is available for this article.


Assuntos
Dor no Peito/diagnóstico , Doença das Coronárias/diagnóstico , Ecocardiografia sob Estresse , Serviço Hospitalar de Emergência , Imageamento por Ressonância Magnética/métodos , Dor no Peito/diagnóstico por imagem , Dor no Peito/fisiopatologia , Meios de Contraste , Angiografia Coronária , Doença das Coronárias/diagnóstico por imagem , Doença das Coronárias/fisiopatologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Compostos Organometálicos , Valor Preditivo dos Testes , Medição de Risco , Fatores de Risco , Sensibilidade e Especificidade
10.
PLoS One ; 7(7): e40491, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22815751

RESUMO

BACKGROUND: Detecting and quantifying the severity of mitral regurgitation is essential for risk stratification and clinical decision-making regarding timing of surgery. Our objective was to assess specific visual parameters by cine-magnetic resonance imaging (MRI) in the determination of the severity of mitral regurgitation and to compare it to previously validated imaging modalities: echocardiography and cardiac ventriculography. METHODS: The study population consisted of 68 patients who underwent a cardiac MRI followed by an echocardiogram within a median time of 2.0 days and 49 of these patients who had a cardiac catheterization, median time of 2.0 days. The inter-rater agreement statistic (Kappa) was used to evaluate the agreement. RESULTS: There was moderate agreement between cine MRI and Doppler echocardiography in assessing mitral regurgitation severity, with a kappa value of 0.47, confidence interval (CI) 0.29-0.65. There was also fair agreement between cine MRI and cardiac catheterization with a kappa value of 0.36, CI of 0.17-0.55. CONCLUSION: Cine MRI offers a reasonable alternative to both Doppler echocardiography and, to a lesser extent, cardiac catheterization for visually assessing the severity of mitral regurgitation with specific visual parameters during routine clinical cardiac MRI.


Assuntos
Cateterismo Cardíaco , Ecocardiografia Doppler , Imageamento por Ressonância Magnética , Insuficiência da Valva Mitral/diagnóstico , Insuficiência da Valva Mitral/fisiopatologia , Feminino , Átrios do Coração/diagnóstico por imagem , Átrios do Coração/patologia , Humanos , Masculino , Pessoa de Meia-Idade , Insuficiência da Valva Mitral/diagnóstico por imagem , Tamanho do Órgão , Estudos Retrospectivos , Volume Sistólico , Disfunção Ventricular Esquerda/diagnóstico por imagem
12.
Am J Cardiol ; 105(10): 1474-9, 2010 May 15.
Artigo em Inglês | MEDLINE | ID: mdl-20451698

RESUMO

The coronary vasodilatory effect of dipyridamole is competitively blocked by caffeine. The purposes of this study were to (1) assess the incidence of having detectable serum caffeine and (2) evaluate whether an intensive caffeine history screening strategy was superior to routine history screening before dipyridamole myocardial perfusion imaging. One hundred ninety-four patients who were randomized to an intensive or a routine screening history strategy were prospectively evaluated. Serum caffeine levels were determined in all patients. Outcomes data, including death, nonfatal myocardial infarction, and history of revascularization, were obtained at 24 months. Nearly 1 in 5 patients (19%) who screened negative by history had detectable serum caffeine. In patients who screened negative by history, there was no statistically significant difference in the percentage of caffeine seropositivity between the intensive and routine arms (16% vs 22%, respectively, p = 0.31). The incidence of combined end points of death, myocardial infarction, or revascularization was 22.9% and 7.3% in patients with and without detectable serum caffeine, respectively (p = 0.01). In conclusion, despite initial negative results on screening by history, a considerably high percentage of patients had positive serum caffeine levels. These results do not support the use of an intensive screening strategy. Detectable serum caffeine was associated with a higher incidence of adverse outcomes.


Assuntos
Cafeína/sangue , Doença das Coronárias/diagnóstico por imagem , Dipiridamol , Teste de Esforço/métodos , Imagem de Perfusão do Miocárdio/métodos , Idoso , Cafeína/efeitos adversos , Cafeína/farmacologia , Doença das Coronárias/sangue , Dipiridamol/farmacologia , Interações Medicamentosas , Feminino , Hemodinâmica/efeitos dos fármacos , Humanos , Incidência , Masculino , Programas de Rastreamento/métodos , Anamnese/métodos , Pessoa de Meia-Idade , Análise Multivariada , Infarto do Miocárdio/epidemiologia , Infarto do Miocárdio/etiologia , Estudos Prospectivos , Valores de Referência , Análise de Regressão , Fatores de Risco , Sensibilidade e Especificidade , Vasodilatadores/farmacologia
13.
Int J Cardiovasc Imaging ; 26(6): 625-7, 2010 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-20339921

RESUMO

In this report, we describe a case of primary pericardial mesothelioma, which is an extremely rare tumor arising from mesothelial cells lining the pericardium and is associated with a dismal prognosis.


Assuntos
Neoplasias Cardíacas/diagnóstico , Mesotelioma/diagnóstico , Idoso , Biópsia por Agulha , Evolução Fatal , Neoplasias Cardíacas/terapia , Humanos , Imuno-Histoquímica , Imageamento por Ressonância Magnética , Masculino , Mesotelioma/terapia , Cuidados Paliativos , Pericárdio/patologia , Tomografia Computadorizada por Raios X
14.
Circulation ; 120(20): 1969-77, 2009 Nov 17.
Artigo em Inglês | MEDLINE | ID: mdl-19884472

RESUMO

BACKGROUND: In patients with sarcoidosis, sudden death is a leading cause of mortality, which may represent unrecognized cardiac involvement. Delayed-enhancement cardiovascular magnetic resonance (DE-CMR) can detect minute amounts of myocardial damage. We sought to compare DE-CMR with standard clinical evaluation for the identification of cardiac involvement. METHODS AND RESULTS: Eighty-one consecutive patients with biopsy-proven extracardiac sarcoidosis were prospectively recruited for a parallel and masked comparison of cardiac involvement between (1) DE-CMR and (2) standard clinical evaluation with the use of consensus criteria (modified Japanese Ministry of Health [JMH] guidelines). Standard evaluation included 12-lead ECG and at least 1 dedicated non-CMR cardiac study (echocardiography, radionuclide scintigraphy, or cardiac catheterization). Patients were followed for 21+/-8 months for major adverse events (death, defibrillator shock, or pacemaker requirement). Patients were predominantly middle-aged (46+/-11 years), female (62%), and black (73%) and had chronic sarcoidosis (median, 7 years) and preserved left ventricular ejection fraction (median, 56%). DE-CMR identified cardiac involvement in 21 patients (26%) and JMH criteria in 10 (12%, 8 overlapping), a >2-fold higher rate for DE-CMR (P=0.005). All patients with myocardial damage on DE-CMR had coronary disease excluded by x-ray angiography. Pathology evaluation in 15 patients (19%) identified 4 with cardiac sarcoidosis; all 4 were positive by DE-CMR, whereas 2 were JMH positive. On follow-up, 8 had adverse events, including 5 cardiac deaths. Patients with myocardial damage on DE-CMR had a 9-fold higher rate of adverse events and an 11.5-fold higher rate of cardiac death than patients without damage. CONCLUSIONS: In patients with sarcoidosis, DE-CMR is more than twice as sensitive for cardiac involvement as current consensus criteria. Myocardial damage detected by DE-CMR appears to be associated with future adverse events including cardiac death, but events were few, and this needs confirmation in a larger cohort.


Assuntos
Imageamento por Ressonância Magnética , Sarcoidose , Volume Sistólico , Adulto , Doença Crônica , Morte , Feminino , Seguimentos , Cardiopatias/diagnóstico por imagem , Cardiopatias/etiologia , Cardiopatias/mortalidade , Cardiopatias/fisiopatologia , Humanos , Masculino , Pessoa de Meia-Idade , Radiografia , Sarcoidose/complicações , Sarcoidose/diagnóstico por imagem , Sarcoidose/mortalidade , Sarcoidose/fisiopatologia
15.
JACC Cardiovasc Imaging ; 1(4): 436-45, 2008 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-19356464

RESUMO

OBJECTIVES: We wanted to assess the value of cardiovascular magnetic resonance (CMR) stress testing for evaluation of women with suspected coronary artery disease (CAD). BACKGROUND: A combined perfusion and infarction CMR examination can accurately diagnose CAD in the clinical setting in a mixed gender population. METHODS: We prospectively enrolled 147 consecutive women with chest pain or other symptoms suggestive of CAD at 2 centers (Duke University Medical Center, Robert-Bosch-Krankenhaus). Each patient underwent a comprehensive clinical evaluation, a CMR stress test consisting of cine rest function, adenosine-stress and rest perfusion, and delayed-enhancement CMR infarction imaging, and X-ray coronary angiography within 24 h. The components of the CMR test were analyzed visually both in isolation and combined using a pre-specified algorithm. Coronary artery disease was defined as stenosis > or =70% on quantitative analysis of coronary angiography. RESULTS: Cardiovascular magnetic resonance imaging was completed in 136 females (63.0 +/- 11.1 years), 37 (27%) women had CAD on coronary angiography. The combined CMR stress test had a sensitivity, specificity, and accuracy of 84%, 88%, and 87%, respectively, for the diagnosis of CAD. Diagnostic accuracy was high at both sites (Duke University Medical Center 82%, Robert-Bosch-Krankenhaus 90%; p = 0.18). The accuracy for the detection of CAD was reduced when intermediate grade stenoses were included (82% vs. 87%; p = 0.01 compared the cutoff of stenosis > or =50% vs. > or =70%). The sensitivity was lower in women with single-vessel disease (71% vs. 100%; p = 0.06 compared with multivessel disease) and small left ventricular mass (69% vs. 95%; p = 0.04 for left ventricular mass < or =97 g vs. >97 g). The latter difference was even more significant after accounting for end-diastolic volumes (70% vs. 100%; p = 0.02 for left ventricular mass indexed to end-diastolic volume < or =1.15 g/ml vs. >1.15 g/ml). CONCLUSIONS: A multicomponent CMR stress test can accurately diagnose CAD in women. Detection of CAD in women with intermediate grade stenosis, single-vessel disease, and with small hearts is challenging.


Assuntos
Angina Pectoris/etiologia , Circulação Coronária , Estenose Coronária/diagnóstico , Imagem Cinética por Ressonância Magnética , Imagem de Perfusão do Miocárdio/métodos , Saúde da Mulher , Adenosina , Idoso , Algoritmos , Angina Pectoris/patologia , Angina Pectoris/fisiopatologia , Angiografia Coronária , Estenose Coronária/complicações , Estenose Coronária/fisiopatologia , Europa (Continente) , Teste de Esforço , Feminino , Humanos , Interpretação de Imagem Assistida por Computador , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Estudos Prospectivos , Curva ROC , Sensibilidade e Especificidade , Índice de Gravidade de Doença , Fatores Sexuais , Volume Sistólico , Estados Unidos
16.
Magn Reson Imaging Clin N Am ; 15(4): 527-40, vi, 2007 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-17976590

RESUMO

With recent technical and clinical advances, adenosine stress perfusion MRI has evolved from a promising research tool to an everyday clinical test. This article reviews the current state of stress perfusion MRI. Specifically, it addresses the following topics: validation of stress perfusion MRI in preclinical studies, diagnostic performance in patients, imaging protocol, and image interpretation.

17.
Cardiol Clin ; 25(1): 57-70, vi, 2007 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-17478240

RESUMO

With recent technical and clinical advances, adenosine stress perfusion MRI has evolved from a promising research tool to an everyday clinical test. This article reviews the current state of stress perfusion MRI. Specifically, it addresses the following topics: validation of stress perfusion MRI in preclinical studies, diagnostic performance in patients, imaging protocol, and image interpretation.


Assuntos
Teste de Esforço/métodos , Imagem Cinética por Ressonância Magnética/métodos , Isquemia Miocárdica/diagnóstico , Reperfusão Miocárdica/métodos , Algoritmos , Animais , Artefatos , Humanos , Interpretação de Imagem Assistida por Computador , Isquemia Miocárdica/patologia , Reprodutibilidade dos Testes , Processamento de Sinais Assistido por Computador
18.
J Am Coll Cardiol ; 47(8): 1630-8, 2006 Apr 18.
Artigo em Inglês | MEDLINE | ID: mdl-16631001

RESUMO

OBJECTIVES: We tested a pre-defined visual interpretation algorithm that combines cardiovascular magnetic resonance (CMR) data from perfusion and infarction imaging for the diagnosis of coronary artery disease (CAD). BACKGROUND: Cardiovascular magnetic resonance can assess both myocardial perfusion and infarction with independent techniques in a single session. METHODS: We prospectively enrolled 100 consecutive patients with suspected CAD scheduled for X-ray coronary angiography. Patients had comprehensive clinical evaluation, including Rose angina questionnaire, 12-lead electrocardiography, C-reactive protein, and calculation of Framingham risk. Cardiovascular magnetic resonance included cine, adenosine-stress and rest perfusion-CMR, and delayed enhancement-CMR (DE-CMR) for infarction imaging. Matched stress-rest perfusion defects in the absence of infarction by DE-CMR were considered artifactual. All patients underwent X-ray angiography within 24 h of CMR. RESULTS: Ninety-two patients had complete CMR examinations. Significant CAD (> or =70% stenosis) was found in 37 patients (40%). The combination of perfusion and DE-CMR had a sensitivity, specificity, and accuracy of 89%, 87%, and 88%, respectively, for CAD diagnosis, compared with 84%, 58%, and 68%, respectively, for perfusion-CMR alone. The combination had higher specificity and accuracy (p < 0.0001), owing to incorporating the exceptionally high specificity (98%) of DE-CMR. Receiver operating characteristic curve analysis demonstrated the combination provided better performance than cine, perfusion, or DE-CMR alone. The accuracy was high in single-vessel and multivessel disease and independent of CAD location. Multivariable analysis including standard clinical parameters demonstrated the combination was the strongest independent CAD predictor. CONCLUSIONS: A combined perfusion and infarction CMR examination with a visual interpretation algorithm can accurately diagnose CAD in the clinical setting. The combination is superior to perfusion-CMR alone.


Assuntos
Sistema Cardiovascular/patologia , Doença da Artéria Coronariana/diagnóstico , Teste de Esforço , Aumento da Imagem , Angiografia por Ressonância Magnética , Infarto do Miocárdio/diagnóstico , Idoso , Algoritmos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Estudos Prospectivos , Fatores de Tempo
20.
J Cardiovasc Magn Reson ; 7(5): 841-3, 2005.
Artigo em Inglês | MEDLINE | ID: mdl-16353446

RESUMO

We present a case demonstrating the utility of cardiovascular magnetic resonance (CMR) in the diagnosis of a cardiac mass. A 70-year-old female who presented with chest pressure and left sided jaw pain was found to have a cardiac mass on transthoracic and transesophageal echocardiography that was diagnosed as an atrial myxoma. A cardiac magnetic resonance test determined the mass to be more consistent with a thrombus than a myxoma through a stepwise approach using multiple pulse sequences. Thus, unwarranted and potentially risky thoracic surgery was avoided by the incorporation of a systematic evaluation by cardiac MRI.


Assuntos
Neoplasias Cardíacas/patologia , Imageamento por Ressonância Magnética , Mixoma/patologia , Idoso , Apêndice Atrial/patologia , Cardiomiopatias/patologia , Diagnóstico Diferencial , Ecocardiografia , Ecocardiografia Transesofagiana , Feminino , Neoplasias Cardíacas/diagnóstico , Humanos , Mixoma/diagnóstico , Veias Pulmonares/patologia , Trombose/patologia
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