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
107 resultados
Resultados de Busca
Agora exibindo 1 - 10 de 107
- 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.
- Burnt sugarcane harvesting is associated with acute renal dysfunction(2015) SANTOS, Ubiratan Paula; ZANETTA, Dirce Maria T.; TERRA-FILHO, Mario; BURDMANN, Emmanuel A.Sugarcane harvesting has been associated with an epidemic of chronic kidney disease in Central America mainly affecting previously healthy young workers. Repeated episodes of acute kidney dysfunction are hypothesized to be one of the possible mechanisms for this phenomenon. Therefore, this exploratory study aimed to assess the acute effects of burnt sugarcane harvesting on renal function among 28 healthy non-African Brazilian workers. Urine and blood samples were collected at the beginning and at the end of the harvesting season and before and at the end of a harvesting workday. All individuals decreased their estimated glomerular filtration rate by similar to 20% at the end of the daily shift, and 18.5% presented with serum creatinine increases consistent with acute kidney injury. Those changes were associated with increased serum creatine phosphokinase (a known marker for exertional rhabdomyolysis) and oxidative stress-associated malondialdehyde levels, increased peripheral blood white cell counts, decreased urinary and serum sodium, decreased calculated fractional sodium excretion, and increased urine density. Thus, burnt sugarcane harvesting caused acute renal dysfunction in previously healthy workers. This was associated with a combination of dehydration, systemic inflammation, oxidative stress, and rhabdomyolysis.
- Acute kidney injury in Latin America: a view on renal replacement therapy resources(2014) LOMBARDI, Raul; ROSA-DIEZ, Guillermo; FERREIRO, Alejandro; GRELONI, Gustavo; YU, Luis; YOUNES-IBRAHIM, Mauricio; BURDMANN, Emmanuel A.Acute kidney injury (AKI) has increasingly been recognized as an important public health issue due to its rising frequency, its associations with early and late adverse outcomes and its economic burden. Given the importance of determining the available resources to address this serious issue, the AKI Committee of SLANH conducted a survey to obtain information about infrastructure, human resources and equipment devoted to the treatment of AKI in Latin America A total of 246 units from 14 countries participated in the survey, the majority of them pertaining to nephrology divisions in teaching hospitals. Intermittent hemodialysis was universally performed by all of the units, and less frequently, slow extended dialysis (40%) and continuous renal replacement therapy (23%) were performed. Seventy-nine units (30%) perform peritoneal dialysis, but only 51 (19%) of them reported having treated at least 1 patient with this technique in the last 3 months pre-survey. The vast majority of the units reported adequate water treatment and use of modern filter membranes. Most of the patients received renal replacement therapy (RRT) in the intensive care unit. Specific causes of AKI were reported in different frequencies, with a heterogeneous pattern among the countries. Septic abortion, hemolytic-uremic syndrome, community-acquired diarrhea and leptospirosis were the etiologies most frequently associated with AKI. To our knowledge, this report was the first available study of the equipment and human resources utilized for RRT in AKI patients in Latin America.
- Metformin use and cardiovascular events in patients with type 2 diabetes and chronic kidney disease(2019) CHARYTAN, David M.; SOLOMON, Scott D.; IVANOVICH, Peter; REMUZZI, Giuseppe; COOPER, Mark E.; MCGILL, Janet B.; PARVING, Hans-Henrik; PARFREY, Patrick; SINGH, Ajay K.; BURDMANN, Emmanuel A.; LEVEY, Andrew S.; ECKARDT, Kai-Uwe; MCMURRAY, John J. V.; WEINRAUCH, Larry A.; LIU, Jiankang; CLAGGETT, Brian; LEWIS, Eldrin F.; PFEFFER, Marc A.AimsMetformin could have benefits on cardiovascular disease and kidney disease progression but is often withheld from individuals with diabetes and chronic kidney disease (CKD) because of a concern that it may increase the risk of lactic acidosis. Materials and methodsAll-cause mortality, cardiovascular death, cardiovascular events (death, hospitalization for heart failure, myocardial infarction, stroke or myocardial ischemia), end stage renal disease (ESRD) and the kidney disease composite (ESRD or death) were compared in metformin users and non-users with diabetes and CKD enrolled in the Trial to Reduce Cardiovascular Events with Aranesp (darbepoeitin-alfa) Therapy (TREAT) (NCT00093015). Outcomes were compared after propensity matching of users and non-users and in multivariable proportional hazards models. ResultsThere were 591 individuals who used metformin at baseline and 3447 non-users. Among propensity-matched users, the crude incidence rate for mortality, cardiovascular mortality, cardiovascular events and the combined endpoint was lower in metformin users than in non-users, but ESRD was marginally higher (4.0% vs 3.6%). Metformin use was independently associated with a reduced risk of all-cause mortality (HR, 0.49; 95% CI, 0.36-0.69), cardiovascular death (HR, 0.49; 95% CI, 0.32-0.74), the cardiovascular composite (HR, 0.67, 95% CI, 0.51-0.88) and the kidney disease composite (HR, 0.77; 95% CI, 0.61-0.98). Associations with ESRD (HR, 1.01; 95% CI, 0.65-1.55) were not significant. Results were qualitatively similar in adjusted analyses of the full population. Two cases of lactic acidosis were observed. ConclusionsMetformin may be safer for use in CKD than previously considered and may lower the risk of death and cardiovascular events in individuals with stage 3 CKD.
- 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.
- The duration of acute kidney injury after cardiac surgery increases the risk of long-term chronic kidney disease(2017) PALOMBA, Henrique; CASTRO, Isac; YU, Luis; BURDMANN, Emmanuel A.Background Acute kidney injury (Dasta et al., Nephrol Dial Transplant 23(6): 1970-1974, 2008) following cardiac surgery is associated with higher perioperative morbidity and mortality, but its impact on long term development of chronic kidney disease (CKD) is uncertain. Methods A total of 350 patients submitted to elective cardiac surgery were evaluated for AKI, defined as an increase in serum creatinine (SCr) = 0.3 mg/dL over baseline value. Univariate and multivariate analysis were used to study pre, intra and postoperative parameters associated with occurrence CKD after 12 months of follow-up. Results AKI incidence was 41 % (n = 88). The 12-month prevelence of CKD was 9 % (n = 19) in non-AKI patients versus 25 % (n = 54, p < 0.0001) in the AKI group. The factors identified as independent risk factors for long-term CKD development in the multivariate logistic regression model were age > 60 years, hospitalization serum creatinine > 0.8 mg/dL, peripheral artery disease, hemorrhage and AKI duration > 3 days. Conclusion Patients developing AKI after cardiac surgery presented high prevalence of long-term incident CKD. The duration of AKI was a strong independent risk factor for this late CKD development. Recognition of predictive factors for CKD development following cardiac surgery-associated AKI may help to develop strategies to prevent or halt CKD progression in this population.
- Glomerular deposition of immune complexes as a first manifestation of malignant melanoma - a case report (vol 32, pg 1223, 2010)(2011) FARIA, Tamara Veiga; BAPTISTA, Maria Alice Ferreira; BURDMANN, Emmanuel A.; CURY, Patricia
- Prevention of Intradialytic Hypotension in Patients with Acute Kidney Injury Submitted to Sustained Low-Efficiency Dialysis(2012) LIMA, Emerson Q.; SILVA, Ricardo G.; DONADI, Endrigo L. S.; FERNANDES, Alex B.; ZANON, Jeferson R.; PINTO, Klinger R. D.; BURDMANN, Emmanuel A.Objectives: This study evaluated the effects of a protocol aiming to reduce hypotension in acute kidney injury (AKI) patients submitted to sustained low-efficiency dialysis (SLED). Methods: Patients were randomly assigned to two SLED prescriptions-control group, dialysate temperature was 37.0 degrees C with a fixed sodium concentration [138 mEq/L] and ultrafiltration (UF) rate; and profiling group, dialysate temperature was 35.5 degrees C with a variable sodium concentration [150-138 mEq/L] and UF rate. Results: Sixty-two SLED sessions were evaluated (34 in profiling and 28 in control). Patients (n = 31) were similar in terms of gender, age, and Sequential Organ Failure Assessment (SOFA) score. Dialysis time, dialysis dose, and post-dialysis serum sodium were similar in both groups. The profiling group had significantly less hypotension episodes (23% vs. 57% in control, p = 0.009) and achieved higher UF volume (2.23 +/- 1.25 L vs. 1.59 +/- 1.03 L in control, p = 0.04) when compared with control group. Conclusions: SLED protocol with modulation of dialysate temperature, sodium, and UF profiling showed similar efficacy but less intradialytic hypotension when compared with a standard SLED prescription.
bookPart Nefropatias tóxicas e tubulointersticiais(2016) LIMA, Emerson Quintino de; BURDMANN, Emmanuel de Almeida- Acute Kidney Injury Caused by Bothrops Snake Venom(2011) SGRIGNOLLI, Livia Rodrigues; MENDES, Gloria Elisa Florido; CARLOS, Carla Patricia; BURDMANN, Emmanuel A.Medically important venomous snakes in Latin America belong to the genus Bothrops, Crotalus, Lachesis and Micrurus. The Bothrops genus is responsible for the majority of accidents. The WHO globally estimates 2,500,000 poisonous snakebites and 125,000 deaths annually. In its last report in 2001, the Brazilian Ministry of Health accounted 359 deaths due to snakebites, of which the Bothrops genus was responsible for 185. Snake venoms cause local and systemic damage, including acute kidney injury, which is the most important cause of death among patients surviving the early effects of envenoming by the Crotalus and Bothrops genuses. Venom-induced acute kidney injury is a frequent complication of Bothrops snakebite, carrying relevant morbidity and mortality.