VITOR EMER EGYPTO ROSA
Projetos de Pesquisa
Unidades Organizacionais
Instituto do Coração, Hospital das Clínicas, Faculdade de Medicina - Médico
LIM/64, Hospital das Clínicas, Faculdade de Medicina
LIM/64, Hospital das Clínicas, Faculdade de Medicina
4 resultados
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- Comprehensive myocardial characterization using cardiac magnetic resonance associates with outcomes in low gradient severe aortic stenosis(2022) FUKUI, Miho; ANNABI, Mohamed-Salah; ROSA, Vitor E. E.; RIBEIRO, Henrique B.; I, Larissa Stanberry; CLAVEL, Marie-Annick; RODES-CABAU, Josep; TARASOUTCHI, Flavio; SCHELBERT, Erik B.; BERGLER-KLEIN, Jutta; BARTKO, Philipp E.; DONA, Carolina; MASCHERBAUER, Julia; DAHOU, Abdellaziz; ROCHITTE, Carlos E.; PIBAROT, Philippe; CAVALCANTE, Joao L.Aims This study sought to compare cardiac magnetic resonance (CMR) characteristics according to different flow/gradient patterns of aortic stenosis (AS) and to evaluate their prognostic value in patients with low-gradient AS. Methods and results This international prospective multicentric study included 147 patients with low-gradient moderate to severe AS who underwent comprehensive CMR evaluation of left ventricular global longitudinal strain (LVGLS), extracellular volume fraction (ECV), and late gadolinium enhancement (LGE). All patients were classified as followings: classical low-flow low-gradient (LFLG) [mean gradient (MG) < 40 mmHg and left ventricular ejection fraction (LVEF) < 50%]; paradoxical LFLG [MG < 40 mmHg, LVEF >= 50%, and stroke volume index (SVi) < 35 ml/m(2)]; and normal-flow low-gradient (MG < 40 mmHg, LVEF >= 50%, and SVi >= 35 ml/m(2)). Patients with classical LFLG (n = 90) had more LV adverse remodelling including higher ECV, and higher LGE and volume, and worst LVGLS. Over a median follow-up of 2 years, 43 deaths and 48 composite outcomes of death or heart failure hospitalizations occurred. Risks of adverse events increased per tertile of LVGLS: hazard ratio (HR) = 1.50 [95% CI, 1.02-2.20]; P = 0.04 for mortality; HR = 1.45 [1.01-2.09]; P < 0.05 for composite outcome; per tertile of ECV, HR = 1.63 [1.07-2.49]; P = 0.02 for mortality; HR = 1.54 [1.02-2.33]; P = 0.04 for composite outcome. LGE presence also associated with higher mortality, HR = 2.27 [1.01-5.11]; P < 0.05 and composite outcome, HR = 3.00 [1.16-7.73]; P = 0.02. The risk of mortality and the composite outcome increased in proportion to the number of impaired components (i.e. LVGLS, ECV, and LGE) with multivariate adjustment. Conclusions In this international prospective multicentric study of low-gradient AS, comprehensive CMR assessment provides independent prognostic value that is cumulative and incremental to clinical and echocardiographic characteristics.
- Biomarkers in structural cardiovascular disease: insights into screening, diagnosis and prognosis(2023) ROSA, Vitor Emer Egypto; GARCIA-GARCIA, Hector M.; CAMPOS, Carlos M.; SAMPAIO, Roney Orismar
- The Impact of Sonothrombolysis on Left Ventricular Diastolic Function and Left Atrial Mechanics Preventing Left Atrial Remodeling in Patients With ST Elevation Acute Myocardial Infarction(2023) CHIANG, Hsu Po; AGUIAR, Miguel O. D.; TAVARES, Bruno G.; ROSA, Vitor E. E.; GOMES, Sergio Barros; OLIVEIRA, Mucio T.; SOEIRO, Alexandre; NICOLAU, Jose C.; RIBEIRO, Henrique B.; SBANO, Joao C.; ROCHITTE, Carlos E.; FILHO, Roberto Kalil; RAMIRES, Jose A. F.; PORTER, Thomas R.; MATHIAS, Wilson; TSUTSUI, Jeane M.Background: The diagnostic ultrasound-guided high mechanical index impulses during an intravenous micro -bubble infusion (sonothrombolysis) improve myocardial perfusion in acute ST segment elevation myocardial infarction, but its effect on left ventricular diastolic dysfunction (DD), left atrial (LA) mechanics and remodeling is unknown. We assessed the effect of sonothrombolysis on DD grade and LA mechanics. Methods: One hundred patients (59 +/- 10 years; 34% women) were randomized to receive either high mechan-ical index impulses plus percutaneous coronary intervention (PCI) (therapy group) or PCI only (control group) (n = 50 in each group). Diastolic dysfunction grade and LA mechanics were assessed immediately before and after PCI and at 48 to 72 hours, 1 month, and 6 months of follow-up. Diastolic dysfunction grades were clas-sified as grades I, II, and III. The LA mechanics was obtained by two-dimensional speckle-tracking echocardiography-derived global longitudinal strain (GLS).Results: As follow-up time progressed, increased DD grade was observed more frequently in the control group than in the therapy group at 1 month and 6 months of follow-up (all P < .05). The LA-GLS values were incre-mentally higher in the therapy group when compared with the control group at 48 to 72 hours, 24.0% +/- 7.3% in the therapy group versus 19.6% +/- 7.2% in the control group, P = .005; at 1 month, 25.3% +/- 6.3% in the ther-apy group versus 21.5% +/- 8.3% in the control group, P = .020; and at 6 months, 26.2% +/- 8.7% in the therapy group versus 21.6% +/- 8.5% in the control group, P = .015. The therapy group was less likely to experience LA remodeling (odds ratio, 2.91 [1.10-7.73]; P = .03). LA-GLS was the sole predictor of LA remodeling (odds ratio, 0.79 [0.67-0.94]; P = .006).Conclusion: Sonothrombolysis is associated with better DD grade and LA mechanics, reducing LA remodel-ing. (J Am Soc Echocardiogr 2023;36:504-13.)
- Concordance between vessel-specific and vascular territory coronary functional assessment: A comparison of quantitative flow ratio and myocardial perfusion scintigraphy(2024) SANTOS, Luciano de Moura; CAMPOS, Carlos M.; GARCIA-GARCIA, Hector Manuel; GODINHO, Roger Renault; LOPES, Maria Antonieta Albanez Medeiros; SELEME, Vinicius Bocchino; CORTES, Rafael Silva; MENDES, Guilherme de Albuquerque Cavalcanti; ROSA, Vitor Emer Egypto; LOPES, Neuza Helena Moreira; JR, Fabio Sandoli de Brito; ABIZAID, Alexandre Antonio CunhaBackgroundQuantitative flow ratio (QFR) and myocardial perfusion scintigraphy (MPS) are utilized for assessing coronary artery disease (CAD) significance. We aimed to analyze their concordance and prognostic impact. AimsWe aimed to analyze the concordance between QFR and MPS and their risk stratification. MethodsPatients with invasive coronary angiography and MPS were categorized as concordant if QFR <= 0.80 and summed difference score (SDS) >= 4 or if QFR > 0.80 and SDS < 4; otherwise, they were discordant. Concordance was classified by coronary territory involvement: total (three territories), partial (two territories), poor (one territory), and total discordance (zero territories). Leaman score assessed coronary atherosclerotic burden. Results2010 coronary territories (670 patients) underwent joint QFR and MPS analysis. MPS area under the curve for QFR <= 0.80 was 0.637. Concordance rates were total (52.5%), partial (29.1%), poor (15.8%), and total discordance (2.6%). Most concordance occurred in patients without significant CAD or with single-vessel disease (89.5%), particularly without MPS perfusion defects (91.5%). Leaman score (odds ratio [OR]: 0.839, 95% confidence interval [CI]: 0.805-0.875, p < 0.001) and MPS perfusion defect (summed stress score [SSS] >= 4) (OR: 0.355, 95% CI: 0.211-0.596, p < 0.001) were independent predictors for discordance. After 1400 days, no significant difference in death/myocardial infarction was observed based on MPS assessment, but Leaman score, functional Leaman score, and average QFR identified higher risk patients. ConclusionsMPS showed good overall accuracy in assessing QFR significance but substantial discordance existed. Predictors for discordance included higher atherosclerotic burden and MPS perfusion defects (SSS >= 4). Leaman score, QFR-based functional Leaman score, and average QFR provided better risk stratification for all-cause death and myocardial infarction than MPS.