EMMANUEL DE ALMEIDA BURDMANN
Projetos de Pesquisa
Unidades Organizacionais
Departamento de Clínica Médica, Faculdade de Medicina - Docente
LIM/12 - Laboratório de Pesquisa Básica em Doenças Renais, Hospital das Clínicas, Faculdade de Medicina - Líder
LIM/12 - Laboratório de Pesquisa Básica em Doenças Renais, Hospital das Clínicas, Faculdade de Medicina - Líder
35 resultados
Resultados de Busca
Agora exibindo 1 - 10 de 35
- 3rd GUIDELINE FOR PERIOPERATIVE CARDIOVASCULAR EVALUATION OF THE BRAZILIAN SOCIETY OF CARDIOLOGY(2017) GUALANDRO, D. M.; YU, P. C.; CARAMELLI, B.; MARQUES, A. C.; CALDERARO, D.; FORNARI, L. S.; PINHO, C.; FEITOSA, A. C. R.; POLANCZYK, C. A.; ROCHITTE, C. E.; JARDIM, C.; VIEIRA, C. L. Z.; NAKAMURA, D. Y. M.; IEZZI, D.; SCHREEN, D.; ADAM, Eduardo L.; D'AMICO, E. A.; LIMA, M. Q.; BURDMANN, E. A.; PACHON, E. I. M.; BRAGA, F. G. M.; MACHADO, F. S.; PAULA, F. J.; CARMO, G. A. L.; FEITOSA-FILHO, G. S.; PRADO, G. F.; LOPES, H. F.; FERNANDES, J. R. C.; LIMA, J. J. G.; SACILOTTO, L.; DRAGER, L. F.; VACANTI, L. J.; ROHDE, L. E. P.; PRADA, L. F. L.; GOWDAK, L. H. W.; VIEIRA, M. L. C.; MONACHINI, M. C.; MACATRAO-COSTA, M. F.; PAIXAO, M. R.; OLIVEIRA JR., M. T.; CURY, P.; VILLACA, P. R.; FARSKY, P. S.; SICILIANO, R. F.; HEINISCH, R. H.; SOUZA, R.; GUALANDRO, S. F. M.; ACCORSI, T. A. D.; MATHIAS JR., W.
- Predictive Usefulness of Urinary Biomarkers for the Identification of Cyclosporine A-Induced Nephrotoxicity in a Rat Model(2014) CARLOS, Carla Patricia; SONEHARA, Nathalia Martins; OLIANI, Sonia Maria; BURDMANN, Emmanuel A.The main side effect of cyclosporine A (CsA), a widely used immunosuppressive drug, is nephrotoxicity. Early detection of CsA-induced acute nephrotoxicity is essential for stop or minimize kidney injury, and timely detection of chronic nephrotoxicity is critical for halting the drug and preventing irreversible kidney injury. This study aimed to identify urinary biomarkers for the detection of CsA-induced nephrotoxicity. We allocated salt-depleted rats to receive CsA or vehicle for 7, 14 or 21 days and evaluated renal function and hemodynamics, microalbuminuria, renal macrophage infiltration, tubulointerstitial fibrosis and renal tissue and urinary biomarkers for kidney injury. Kidney injury molecule-1 (KIM-1), tumor necrosis factor-alpha (TNF-alpha), interleukin 6 (IL-6), fibronectin, neutrophil gelatinase-associated lipocalin (NGAL), TGF-beta, osteopontin, and podocin were assessed in urine. TNF-alpha, IL-6, fibronectin, osteopontin, TGF-beta, collagen IV, alpha smooth muscle actin (alpha -SMA) and vimentin were assessed in renal tissue. CsA caused early functional renal dysfunction and microalbuminuria, followed by macrophage infiltration and late tubulointerstitial fibrosis. Urinary TNF-alpha, KIM-1 and fibronectin increased in the early phase, and urinary TGF-beta and osteopontin increased in the late phase of CsA nephrotoxicity. Urinary biomarkers correlated consistently with renal tissue cytokine expression. In conclusion, early increases in urinary KIM-1, TNF-alpha, and fibronectin and elevated microalbuminuria indicate acute CsA nephrotoxicity. Late increases in urinary osteopontin and TGF-beta indicate chronic CsA nephrotoxicity. These urinary kidney injury biomarkers correlated well with the renal tissue expression of injury markers and with the temporal development of CsA nephrotoxicity.
- Controversies in acute kidney injury: conclusions from a Kidney Disease: Improving Global Outcomes (KDIGO) Conference(2020) OSTERMANN, Marlies; BELLOMO, Rinaldo; BURDMANN, Emmanuel A.; DOI, Kent; ENDRE, Zoltan H.; GOLDSTEIN, Stuart L.; KANE-GILL, Sandra L.; LIU, Kathleen D.; PROWLE, John R.; SHAW, Andrew D.; SRISAWAT, Nattachai; CHEUNG, Michael; JADOUL, Michel; WINKELMAYER, Wolfgang C.; KELLUM, John A.In 2012, Kidney Disease: Improving Global Outcomes (KDIGO) published a guideline on the classification and management of acute kidney injury (AKI). The guideline was derived from evidence available through February 2011. Since then, new evidence has emerged that has important implications for clinical practice in diagnosing and managing AKI. In April of 2019, KDIGO held a controversies conference entitled Acute Kidney Injury with the following goals: determine best practices and areas of uncertainty in treating AKI; review key relevant literature published since the 2012 KDIGO AKI guideline; address ongoing controversial issues; identify new topics or issues to be revisited for the next iteration of the KDIGO AKI guideline; and outline research needed to improve AKI management. Here, we present the findings of this conference and describe key areas that future guidelines may address.
- High intensity resistance training causes muscle damage and increases biomarkers of acute kidney injury in healthy individuals(2018) SPADA, Tania C.; SILVA, Jose M. R. D.; FRANCISCO, Lucila S.; MARCAL, Lia J.; ANTONANGELO, Leila; ZANETTA, Dirce M. T.; YU, Luis; BURDMANN, Emmanuel A.Purpose High-intensity interval resistance training (HIIRT) is an increasingly popular exercise program that provides positive results with short sessions. This study aimed to evaluate whether an HIIRT session causes muscle and kidney damage. Methods Fifty-eight healthy volunteers (median age 24 years, 50% women) participated in this study and performed a HIIRT session. The Borg CR10 scale for pain (CR1OP) and blood and urine samples were collected before (baseline) and 2 and 24 hours after the HIIRT session. Blood samples were analyzed for serum creatinine (SCr), creatine kinase (CK) and myoglobin. Urine samples were assessed for creatinine, neutrophil gelatinase-associated lipocalin, interleukin 18, calbindin, microalbuminuria, trefoil factor-3 and beta-2 microglobulin. Results CR10P had a significant increase at 2 and 24 hours post-workout, and CK increased significantly at 2 hours and increased further at 24 hours. Myoglobin increased significantly at 2 hours and remained elevated at 24 hours. SCr increased modestly but significantly at 24 hours only in men. Three men met the KDIGO diagnostic criteria for acute kidney injury. The urinary kidney injury biomarkers increased significantly at 2 hours and returned to the baseline values 24 hours after HIIRT. Conclusions A single HIIRT session caused early and significant elevations in CK, myoglobin, SCr, microalbuminuria and urinary biomarkers indicative of kidney tubular injury, suggesting the occurrence of muscle and kidney damage.
- A systematic review and meta-analysis of acute kidney injury in the intensive care units of developed and developing countries(2020) MELO, Fernando de Assis Ferreira; MACEDO, Etienne; BEZERRA, Ana Caroline Fonseca; MELO, Waledya Araujo Lopes de; MEHTA, Ravindra L.; BURDMANN, Emmanuel de Almeida; ZANETTA, Dirce Maria TrevisanObjectives Although the majority of the global population lives in developing countries, most of the epidemiological data related to intensive care unit (ICU) acute kidney injury (AKI) comes from developed countries. This systematic review aims to ascertain the methodology of studies on ICU AKI patients in developing and developed countries, to determine whether epidemiological comparisons between these two settings are possible, and to present a summary estimate of AKI incidence. Methods A systematic review of published studies reporting AKI in intensive care units (2005-2015) identified in PubMed, LILACS, and IBECs databases was conducted. We compared developed and developing countries by evaluating study methodology, AKI reference serum creatinine definitions, population characteristics, AKI incidence and mortality. AKI incidence was calculated with a random-effects model. Results Ninety-two studies were included, one of which reported data from both country categories: 60 from developed countries (1,057,332 patients) and 33 from developing countries (34,539 patients). In 78% of the studies, AKI was defined by the RIFLE, AKIN or KDIGO criteria. Oliguria had 11 different definitions and reference creatinine 23 different values. For the meta-analysis, 38 studies from developed and 18 from developing countries were selected, with similar AKI incidence: 39.3% and 35.1%, respectively. The need for dialysis, length of ICU stay and mortality were higher in developing countries. Conclusion Although patient characteristics and AKI incidence were similar in developed and developing countries, main outcomes were worse in developing country studies. There are significant caveats when comparing AKI epidemiology in developed and developing countries, including lack of standardization of reference serum creatinine, oliguria and the timeframe for AKI assessment. Larger, prospective, multicenter studies from developing countries are urgently needed to capture AKI data from the overall population without ICU access.
- Injúria renal aguda: um alerta global(2013) LI, Philip Kam Tao; BURDMANN, Emmanuel A.; MEHTA, Ravindra L.A Injúria Renal Aguda (IRA) é cada vez mais prevalente nos países desenvolvidos e nos em desenvolvimento, e está associada com morbidade e mortalidade severas. A maioria das causas da IRA pode ser evitada por meio de intervenções em nível individual, comunitário, regional e intra-hospitalar. Medidas efetivas devem incluir, em toda a comunidade, os esforços para aumentar a consciência dos efeitos devastadores do IRA e fornecer orientações sobre as estratégias de prevenção, bem como o reconhecimento e tratamento precoces. Os esforços devem ser focados em minimizar as causas de IRA, aumentando a consciência da importância de medidas seriadas de creatinina sérica em pacientes de alto risco para IRA, e documentar o volume de urina em pessoas gravemente doentes para obtenção de diagnóstico precoce; até o momento, não há ainda um papel definitivo para outros biomarcadores. Há a necessidade de protocolos para sistematizar a conduta em condições de IRA pré-renal e em infecções específicas. Dados mais precisos sobre a verdadeira incidência e o impacto clínico da IRA ajudarão a melhor conhecer a importância desta doença, a aumentar o conhecimento de IRA por parte dos governantes, dos médicos em geral e de outros profissionais de saúde para ajudar na prevenção da doença. A prevenção é a chave para evitar a pesado ônus de mortalidade e morbidade associada com IRA.
- Uma Estratégia de Redução do Estresse entre Estudantes Médicos(2020) CATARUCCI, Fernanda Martin; ROSSI, Talita Cardoso; BRUNO, Vânia Hercília Talarico; BETETO, Ivan da Silva; HABIMORAD, Pedro Henrique Leonetti; ANDREWS, Madeline Susan; BURDMANN, Emmanuel A.; PATRÍCIO, Karina PavãoAbstract: Introduction: Undergraduate medical students experience a considerable amount of stress, which can negatively affect their learning, motivation and contact with patients. Some techniques and practices for stress management and reduction, such as meditation, have been recommended and used in medical schools. This study evaluated the effects of a Stress Reduction and Empathy Development Program in Medicine (REDEMED©) on participants’ perception of stress and possible support groups. Method: This is a quasi-experimental trial whose sample comprised 40 students in a control group and 47 students in an intervention group. The students in the intervention group participated in eight weekly sessions lasting two hours each. The course hours were divided into: 30 minutes of theoretical content on how stress influences one’s health, 60 minutes of interpersonal practices and 30 minutes of yoga and meditation practices. Both groups, before and after the program, answered the questionnaire on perceived stress (PSS - Cohen’s scale). Results: After the eight weekly meetings, the intervention group showed significant improvement (p = 0.030), showing that participation in the REDEMED© course proved to be effective in stress control among the students in the study. The students were also questioned about their self-perception of whether or not they felt they were supported by any other groups. The three support groups most often referred to by the students, in both the intervention and the control group, were: friends/family, the Students’ Union and their sports team. After eight weeks, while the control group still referred to the same groups, the intervention group mentioned friends/family, REDEMED© and the Students’ Union. Conclusion: This study showed that the REDEMED© program, meeting for eight weeks using meditation as its central technique, was effective in reducing the stress perceived by medical students who participated in this intervention when compared to the control group (p = 0,000). Integrative and complementary practices can be an important tool within medical schools, empowering students to better cope with the stress they are exposed to throughout the course.
- Acute hyperkalemia in the emergency department: a summary from a Kidney Disease: Improving Global Outcomes conference(2020) LINDNER, Gregor; BURDMANN, Emmanuel A.; CLASE, Catherine M.; HEMMELGARN, Brenda R.; HERZOG, Charles A.; MLYSZKO, Jolanta; NAGAHAMA, Masahiko; PECOITS-FILHO, Roberto; RAFIQUE, Zubaid; ROSSIGNOL, Patrick; SINGER, Adam J.Hyperkalemia is a common electrolyte disorder observed in the emergency department. It is often associated with underlying predisposing conditions, such as moderate or severe kidney disease, heart failure, diabetes mellitus, or significant tissue trauma. Additionally, medications, such as inhibitors of the renin-angiotensin-aldosterone system, potassium-sparing diuretics, nonsteroidal anti-inflammatory drugs, succinylcholine, and digitalis, are associated with hyperkalemia. To this end, Kidney Disease: Improving Global Outcomes (KDIGO) convened a conference in 2018 to identify evidence and address controversies on potassium management in kidney disease. This review summarizes the deliberations and clinical guidance for the evaluation and management of acute hyperkalemia in this setting. The toxic effects of hyperkalemia on the cardiac conduction system are potentially lethal. The ECG is a mainstay in managing hyperkalemia. Membrane stabilization by calcium salts and potassium-shifting agents, such as insulin and salbutamol, is the cornerstone in the acute management of hyperkalemia. However, only dialysis, potassium-binding agents, and loop diuretics remove potassium from the body. Frequent reevaluation of potassium concentrations is recommended to assess treatment success and to monitor for recurrence of hyperkalemia.
- Empatia em estudantes de Medicina: efeitos de um programa de gerenciamento do estresse(2022) CATARUCCI, Fernanda Martin; CARVALHO, Thays Herbst; ANDREWS, Susan; BURDMANN, Emmanuel A.; PATRÍCIO, Karina PavãoAbstract: Introduction: The undergraduate medical course exposes students to a significant amount of stress, which can have negative consequences for learning, motivation and contact with patients. Lack of empathy in the doctor-patient relationship can hinder adherence and treatment results. Some techniques and practices of integrative medicine (mind and body) have been indicated as aiding the management and reduction of stress. These interventions that involve meditation practices, and which are already used in medical schools, can help in the development of empathy and in the vision of comprehensive care. Objective: Investigate the effect of the Stress Reduction and Empathy Development in Medicine Program (REDEMED©) on empathy levels in undergraduate medical students. Method: The program consisted of eight 2-hour sessions with practices involving meditation, yoga postures, and group activities aimed at improving interpersonal interactions. The intervention group consisted of 47 students and the control group 40 students. Empathy was evaluated before and after intervention using the Jefferson Scale of Empathy - version for medical students (JSE-S). Result: Empathy level significantly increased in the group who received intervention compared to the control group (p: 0.000). Conclusion: Participation in the REDEMED© program showed an increase in empathy in undergraduate medical students.
- Effects of Schizolobium parahyba Extract on Experimental Bothrops Venom-Induced Acute Kidney Injury(2014) MARTINES, Monique Silva; MENDES, Mirian M.; SHIMIZU, Maria H. M.; RODRIGUES, Veridiana Melo; CASTRO, Isac de; FERREIRA FILHO, Sebastiao R.; MALHEIROS, Denise M. A. C.; YU, Luis; BURDMANN, Emmanuel A.Background: Venom-induced acute kidney injury (AKI) is a frequent complication of Bothrops snakebite with relevant morbidity and mortality. The aim of this study was to assess the effects of Schizolobium parahyba (SP) extract, a natural medicine with presumed anti-Bothrops venom effects, in an experimental model of Bothrops jararaca venom (BV)-induced AKI. Methodology: Groups of 8 to 10 rats received infusions of 0.9% saline (control, C), SP 2 mg/kg, BV 0.25 mg/kg and BV immediately followed by SP (treatment, T) in the doses already described. After the respective infusions, animals were assessed for their glomerular filtration rate (GFR, inulin clearance), renal blood flow (RBF, Doppler), blood pressure (BP, intra-arterial transducer), renal vascular resistance (RVR), urinary osmolality (UO, freezing point), urinary neutrophil gelatinase-associated lipocalin (NGAL, enzyme-linked immunosorbent assay [ ELISA]), lactate dehydrogenase (LDH, kinetic method), hematocrit (Hct, microhematocrit), fibrinogen (Fi, Klauss modified) and blinded renal histology (acute tubular necrosis score). Principal Findings: BV caused significant decreases in GFR, RBF, UO, HcT and Fi; significant increases in RVR, NGAL and LDH; and acute tubular necrosis. SP did not prevent these changes; instead, it caused a significant decrease in GFR when used alone. Conclusion: SP administered simultaneously with BV, in an approximate 10: 1 concentration, did not prevent BV-induced AKI, hemolysis and fibrinogen consumption. SP used alone caused a decrease in GFR.