ROBERTO ROCHA CORREA VEIGA GIRALDEZ
Projetos de Pesquisa
Unidades Organizacionais
Instituto do Coração, Hospital das Clínicas, Faculdade de Medicina - Médico
43 resultados
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- Myocardial Inactivation of Thyroid Hormones in Patients with Aortic Stenosis(2017) PAOLINO, Bruno S.; POMERANTZEFF, Pablo M.; DALLAN, Luis Alberto O.; GAIOTTO, Fabio A.; PREITE, Nailliw Z.; LATRONICO, Ana Claudia; NICOLAU, Jose Carlos; BIANCO, Antonio C.; GIRALDEZ, Roberto R. C. V.Objective: The human heart expresses the type 2 deiodinase (D2) that activates thyroxine (T4) to triiodothyronine (T3). At the same time, the inactivating type 3 deiodinase (D3) has been found in a rat model of right ventricular hypertrophy. It is not known whether the human myocardium metabolizes thyroid hormone. This study examined myocardial thyroid hormone metabolism in patients with aortic valve stenosis (AS) undergoing aortic valve replacement and in patients with coronary artery disease (CAD) undergoing coronary artery bypass grafting surgery. Methods: Myocardial thyroid hormone metabolism was assessed by analyzing the difference in serum thyroid hormone levels between the aortic root (incoming blood) and the coronary sinus (outgoing blood) of patients undergoing cardiac surgery. A total of 23 patients with AS and 35 patients with CAD were included. Patients received a pre-surgical echocardiogram, and pre-, during and post-surgical thyroid hormone serum levels were collected in the myocardial and peripheral circulations. Results: Patients with AS exhibited the expected left ventricle (LV) hypertrophy (i.e., 20-30% increase in LV posterior wall and interventricular septum thickness and similar to 10% increase in AS in LV diastolic diameter). Immediately before cardiopulmonary bypass, blood flowing through the AS myocardium exhibited a 4.6% reduction in T3 and 6.9% increase in rT3 levels, decreasing the serum T3/rT3 ratio by 9.6%. T4 and thyrotropin serum levels remained similar between the aortic root and coronary sinus. In contrast, no myocardial thyroid hormone metabolism was observed in CAD patients. Notably, the AS myocardium lost the ability to inactivate thyroid hormone after cardiopulmonary bypass, possibly due to myocardial stunning. Conclusions: There is accelerated thyroid hormone inactivation in the AS myocardium, which is likely the result of D3 expression. No evidence to suggest thyroid hormone activation in the myocardium was obtained in the present study.
- Highlights from the IV International Symposium of Thrombosis and Anticoagulation (ISTA), October 20-21, 2011, Salvador, Bahia, Brazil(2012) LOPES, Renato D.; BECKER, Richard C.; NEWBY, L. Kristin; PETERSON, Eric D.; HYLEK, Elaine M.; GRANGER, Christopher B.; CROWTHER, Mark; WANG, Tracy; CARVALHO, Antonio C.; BERWANGER, Otavio; GIRALDEZ, Roberto R.; FEITOSA, Gilson Soares; RIBEIRO, Jorge Pinto; DARZE, Eduardo; KALIL, Renato A. K.; ANDRANDE, Marianna; BOAS, Fabio Villas; ANDRADE, Jadelson; ROCHA, Ana Thereza; HARRINGTON, Robert A.; LOPES, Antonio C.; GARCIA, David A.To discuss and share knowledge about advances in the care of patients with thrombotic disorders, the Fourth International Symposium of Thrombosis and Anticoagulation was held in Salvador, Bahia, Brazil, from October 20-21, 2011. This scientific program was developed by clinicians for clinicians and was promoted by three major clinical research institutes: the Brazilian Clinical Research Institute, the Duke Clinical Research Institute of the Duke University School of Medicine, and Hospital do Cora double dagger o Research Institute. Comprising 2 days of academic presentations and open discussion, the symposium had as its primary goal to educate, motivate, and inspire internists, cardiologists, hematologists, and other physicians by convening national and international visionaries, thought-leaders, and dedicated clinician-scientists. This paper summarizes the symposium proceedings.
conferenceObject Platelet reactivity among patients with acute coronary syndromes and multivessel coronary artery disease(2020) FURTADO, R.; SALSOSO, R.; DALCOQUIO, T. F.; DOMINGUES, A. A.; NAKASHIMA, C. A. K.; PEREIRA, C. A. C.; V, R. R. C. Giraldez; LIMA, F. G.; MELO, R. R.; FERRARI, A. G.; GENESTRETI, P. R. R.; BARACIOLI, L. M.; NICOLAU, J. C.- Prevalence and clinical outcomes of undiagnosed diabetes mellitus and prediabetes among patients with high-risk non-ST-segment elevation acute coronary syndrome(2013) GIRALDEZ, Roberto R.; CLARE, Robert M.; LOPES, Renato D.; DALBY, Anthony J.; PRABHAKARAN, Dorairaj; BROGAN JR., Gerard X.; GIUGLIANO, Robert P.; JAMES, Stefan K.; TANGUAY, Jean-Francois; POLLACK JR., Charles V.; HARRINGTON, Robert A.; BRAUNWALD, Eugene; NEWBY, L. KristinBackground We examined the prevalence of undiagnosed diabetes or prediabetes and associations with ischemic outcomes among non-ST-segment elevation acute coronary syndrome (ACS) patients. Methods We categorized 8795 EARLY ACS trial patients into one of the following groups: ""known diabetes"" (n = 2860 [32.5%]; reported on the case report form), ""undiagnosed diabetes"" (n = 1069 [12.2%]; no diabetes history and fasting glucose >= 126 mg/dL or hemoglobin A(1c) >= 6.5%), ""prediabetes"" (n = 947 [10.8%]; fasting glucose >= 110 to <126 mg/dL, or "" normal"" (n = 3919 [44.5%]). Adjusted associations of known diabetes, undiagnosed diabetes, and prediabetes (versus normal) with 30-day and 1-year outcomes were determined. Results Undiagnosed diabetes was associated with greater 30-day death or myocardial infarction (MI) (ORadj 1.28, 95% CI 1.05-1.57), driven primarily by greater 30-day mortality (ORadj 1.65, 95% CI 1.09-2.48). Known diabetic patients had 30-day death or MI outcomes similar to those of normal patients, but 30-day mortality was higher (ORadj 1.40, 95% CI 1.01-1.93). Prediabetic patients had 30-day death or MI outcomes similar to those of normal patients. One-year mortality was greater among known diabetic patients (HRadj 1.38, 95% CI 1.13-1.67) but not among those with undiagnosed diabetes or prediabetes. Conclusions Undiagnosed diabetes and prediabetes were common among high-risk non-ST-segment elevation ACS patients. Routine screening for undiagnosed diabetes may be useful since these patients seem to have worse short-term outcomes and deserve consideration of alternative management strategies.
- Does the Mean Platelet Volume Decrease in the Presence of Coronary Artery Fistula?(2019) PINESI, Henrique Trombini; GIRALDEZ, Roberto Rocha C. V.
- Do Diabetic Patients with Acute Coronary Syndromes Have a Higher Threshold for Ischemic Pain?(2014) NICOLAU, Jose Carlos; BARBOSA, Carlos Jose Dornas Goncalves; FRANCI, Andre; BARACIOLI, Luciano Moreira; FRANKEN, Marcelo; LIMA, Felipe Gallego; GIRALDEZ, Roberto Rocha; KALIL FILHO, Roberto; RAMIRES, Jose Antonio Franchini; GIUGLIANO, Robert P.Background: Data from over 4 decades have reported a higher incidence of silent infarction among patients with diabetes mellitus (DM), but recent publications have shown conflicting results regarding the correlation between DM and presence of pain in patients with acute coronary syndromes (ACS). Objective: Our primary objective was to analyze the association between DM and precordial pain at hospital arrival. Secondary analyses evaluated the association between hyperglycemia and precordial pain at presentation, and the subgroup of patients presenting within 6 hours of symptom onset. Methods: We analyzed a prospectively designed registry of 3,544 patients with ACS admitted to a Coronary Care Unit of a tertiary hospital. We developed multivariable models to adjust for potential confounders. Results: Patients with precordial pain were less likely to have DM (30.3%) than those without pain (34.0%; unadjusted p = 0.029), but this difference was not significant after multivariable adjustment, for the global population (p = 0.84), and for subset of patients that presented within 6 hours from symptom onset (p = 0.51). In contrast, precordial pain was more likely among patients with hyperglycemia (41.2% vs 37.0% without hyperglycemia, p = 0.035) in the overall population and also among those who presented within 6 hours (41.6% vs. 32.3%, p = 0.001). Adjusted models showed an independent association between hyperglycemia and pain at presentation, especially among patients who presented within 6 hours (OR = 1.41, p = 0.008). Conclusion: In this non-selected ACS population, there was no correlation between DM and hospital presentation without precordial pain. Moreover, hyperglycemia correlated significantly with pain at presentation, especially in the population that arrived within 6 hours from symptom onset.
- O escore de risco de sangramento como preditor de mortalidade em pacientes com síndromes coronarianas agudas(2013) NICOLAU, José Carlos; MOREIRA, Humberto Graner; BARACIOLI, Luciano Moreira; SERRANO JR, Carlos Vicente; LIMA, Felipe Galego; FRANKEN, Marcelo; GIRALDEZ, Roberto Rocha; GANEM, Fernando; KALIL FILHO, Roberto; RAMIRES, José Antônio Franchini; MEHRAN, RoxanaBACKGROUND: It is well known that the occurrence of bleeding increases in-hospital mortality in patients with acute coronary syndromes (ACS), and there is a good correlation between bleeding risk scores and bleeding incidence. However, the role of bleeding risk score as mortality predictor is poorly studied. OBJECTIVE: The main purpose of this paper was to analyze the role of bleeding risk score as in-hospital mortality predictor in a cohort of patients with ACS treated in a single cardiology tertiary center. METHODS: Out of 1655 patients with ACS (547 with ST-elevation ACS and 1118 with non-ST-elevation ACS), we calculated the ACUITY/HORIZONS bleeding score prospectively in 249 patients and retrospectively in the remaining 1416. Mortality information and hemorrhagic complications were also obtained. RESULTS: Among the mean age of 64.3 ± 12.6 years, the mean bleeding score was 18 ± 7.7. The correlation between bleeding and mortality was highly significant (p < 0.001, OR = 5.296), as well as the correlation between bleeding score and in-hospital bleeding (p < 0.001, OR = 1.058), and between bleeding score and in-hospital mortality (adjusted OR = 1.121, p < 0.001, area under the ROC curve 0.753, p < 0.001). The adjusted OR and area under the ROC curve for the population with ST-elevation ACS were, respectively, 1.046 (p = 0.046) and 0.686 ± 0.040 (p < 0.001); for non-ST-elevation ACS the figures were, respectively, 1.150 (p < 0.001) and 0.769 ± 0.036 (p < 0.001). CONCLUSIONS: Bleeding risk score is a very useful and highly reliable predictor of in-hospital mortality in a wide range of patients with acute coronary syndromes, especially in those with unstable angina or non-ST-elevation acute myocardial infarction.
conferenceObject ACUTE CORONARY SYNDROMES IN THE VERY OLD: THERAPIES AND OUTCOME IN THE LONG-TERM FOLLOW-UP(2014) NICOLAU, Jose C.; FRANCI, Andre; BARBOSA, Carlos; BARACIOLI, Luciano; FURTADO, Remo; GIANNETTI, Natali; GIRALDEZ, Roberto; LIMA, Felipe; FRANKEN, Marcelo; RAMIRES, Jose; KALIL-FILHO, Roberto; FERRAZ, ThiagoconferenceObject DO PATIENTS WITHOUT SIGNIFICANT CORONARY OBSTRUCTIONS HAVE BETTER OUTCOME IN THE LONG RUN POST-ACUTE MYOCARDIAL INFARCTION?(2014) NICOLAU, Jose C.; FRANKEN, Marcelo; FERRAZ, Thiago; BARACIOLI, Luciano; LIMA, Felipe Gallego; GIRALDEZ, Roberto; FURTADO, Remo; GIANNETTI, Natali; KALIL-FILHO, Roberto; RAMIRES, JoseconferenceObject INFLUENCE OF HEALTH INSURANCE ON LONG-TERM ADHERENCE TO STATINS AND BETA-BLOCKERS AFTER ACUTE CORONARY SYNDROMES(2021) NICOLAU, Jose Carlos; SALSOSO, Rocio; DALCOQUIO, Talia; GENESTRETI, Paulo; FRANCI, Andre; FERRARI, Aline; BERTOLIN, Adriadne; LARA, Livia; JULIASZ, Marcela; PEREIRA, Cesar; LIMA, Felipe; BARACIOLI, Luciano; GIRALDEZ, Roberto; FURTADO, Remo