EDUARDO ATSUSHI OSAWA
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article 0 Citação(ões) na Scopus Dobutamine administration in patients after cardiac surgery: beneficial or harmful?(2011) HAJJAR, Ludhmila A.; FUKUSHIMA, Julia T.; OSAWA, Eduardo; ALMEIDA, Juliano P.; GALAS, Filomena R. B. G.- Blood transfusion in cardiac surgery is a risk factor for increased hospital length of stay in adult patients(2013) GALAS, Filomena R. B. G.; ALMEIDA, Juliano P.; FUKUSHIMA, Julia T.; OSAWA, Eduardo A.; NAKAMURA, Rosana E.; SILVA, Carolina M. P. D. C.; ALMEIDA, Elisangela Pinto Marinho de; AULER JR., Jose Otavio Costa; VINCENT, Jean-Louis; HAJJAR, Ludhmila A.Background: Allogeneic red blood cell (RBC) transfusion has been proposed as a negative indicator of quality in cardiac surgery. Hospital length of stay (LOS) may be a surrogate of poor outcome in transfused patients. Methods: Data from 502 patients included in Transfusion Requirements After Cardiac Surgery (TRACS) study were analyzed to assess the relationship between RBC transfusion and hospital LOS in patients undergoing cardiac surgery and enrolled in the TRACS study. Results: According to the status of RBC transfusion, patients were categorized into the following three groups: 1) 199 patients (40%) who did not receive RBC, 2) 241 patients (48%) who received 3 RBC units or fewer (low transfusion requirement group), and 3) 62 patients (12%) who received more than 3 RBC units (high transfusion requirement group). In a multivariable Cox proportional hazards model, the following factors were predictive of a prolonged hospital length of stay: age higher than 65 years, EuroSCORE, valvular surgery, combined procedure, LVEF lower than 40% and RBC transfusion of >3 units. Conclusion: RBC transfusion is an independent risk factor for increased LOS in patients undergoing cardiac surgery. This finding highlights the adequacy of a restrictive transfusion therapy in patients undergoing cardiac surgery.
- Continuous Magnesium Infusion to Prevent Atrial Fibrillation After Cardiac Surgery: A Sequential Matched Case-Controlled Pilot Study(2020) OSAWA, Eduardo A.; CUTULI, Salvatore L.; CIOCCARI, Luca; BITKER, Laurent; PECK, Leah; YOUNG, Helen; HESSELS, Lara; YANASE, Fumitaka; FUKUSHIMA, Julia T.; HAJJAR, Ludhmila A.; SEEVANAYAGAM, Siven; MATALANIS, George; EASTWOOD, Glenn M.; BELLOMO, RinaldoObjective: The authors aimed to test whether a bolus of magnesium followed by continuous intravenous infusion might prevent the development of atrial fibrillation (AF) after cardiac surgery. Design: Sequential, matched, case-controlled pilot study. Setting: Tertiary university hospital. Participants: Matched cohort of 99 patients before and intervention cohort of 99 consecutive patients after the introduction of a continuous magnesium infusion protocol. Interventions: The magnesium infusion protocol consisted of a 10 mmol loading dose of magnesium sulphate followed by a continuous infusion of 3 mmol/h over a maximum duration of 96 hours or until intensive care unit discharge. Measurements and Main Results: The study groups were balanced except for a lower cardiac index in the intervention cohort. The mean duration of magnesium infusion was 27.93 hours (95% confidence interval [CI]: 24.10-31.76 hours). The intervention group had greater serum peak magnesium levels: 1.72 mmol/L 0.34 on day 1, 1.32 0.36 on day 2 versus 1.01 +/- 1.14 and 0.97 +/- 0.13, respectively, in the control group (p < 0.01). Atrial fibrillation occurred in 25 patients (25.3%) in the intervention group and 40 patients (40.4%) in the control group (odds ratio 0.49, 95% CI, 0.27-0.92; p = 0.023). On a multivariate Cox proportional hazards model, the hazard ratio for the development of AF was significantly less in the intervention group (hazard ratio 0.45, 95% CI, 0.26-0.77; p = 0.004). Conclusion: The magnesium delivery strategy was associated with a decreased incidence of postoperative AF in cardiac surgery patients. These findings provide a rationale and preliminary data for the design of future randomized controlled trials.
article Dobutamine administration in patients after cardiac surgery: beneficial or harmful? response(2011) HAJJAR, Ludhmila A.; FUKUSHIMA, Julia T.; OSAWA, Eduardo; ALMEIDA, Juliano P.; GALAS, Filomena R. B. G.- Liberal Versus Restrictive Transfusion Strategy in Critically Ill Oncologic Patients: The Transfusion Requirements in Critically Ill Oncologic Patients Randomized Controlled Trial(2017) BERGAMIN, Fabricio S.; ALMEIDA, Juliano P.; LANDONI, Giovanni; GALAS, Filomena R. B. G.; FUKUSHIMA, Julia T.; FOMINSKIY, Evgeny; PARK, Clarice H. L.; OSAWA, Eduardo A.; DIZ, Maria P. E.; OLIVEIRA, Gisele Q.; FRANCO, Rafael A.; NAKAMURA, Rosana E.; ALMEIDA, Elisangela M.; ABDALA, Edson; FREIRE, Maristela P.; FILHO, Roberto K.; AULER JR., Jose Otavio C.; HAJJAR, Ludhmila A.Objective: To assess whether a restrictive strategy of RBC transfusion reduces 28-day mortality when compared with a liberal strategy in cancer patients with septic shock. Design: Single center, randomized, double-blind controlled trial. Setting: Teaching hospital. Patients: Adult cancer patients with septic shock in the first 6 hours of ICU admission. Interventions: Patients were randomized to the liberal (hemoglobin threshold, < 9 g/dL) or to the restrictive strategy (hemoglobin threshold, < 7 g/dL) of RBC transfusion during ICU stay. Measurements and Main Results: Patients were randomized to the liberal (n = 149) or to the restrictive transfusion strategy (n = 151) group. Patients in the liberal group received more RBC units than patients in the restrictive group (1 [0-3] vs 0 [0-2] unit; p<0.001). At 28 days after randomization, mortality rate in the liberal group (primary endpoint of the study) was 45% (67 patients) versus 56% (84 patients) in the restrictive group (hazard ratio, 0.74; 95% CI, 0.53-1.04; p = 0.08) with no differences in ICU and hospital length of stay. At 90 days after randomization, mortality rate in the liberal group was lower (59% vs 70%) than in the restrictive group (hazard ratio, 0.72; 95% CI, 0.53-0.97; p = 0.03). Conclusions: We observed a survival trend favoring a liberal transfusion strategy in patients with septic shock when compared with the restrictive strategy. These results went in the opposite direction of the a priori hypothesis and of other trials in the field and need to be confirmed.
- Effect of Perioperative Goal-Directed Hemodynamic Resuscitation Therapy on Outcomes Following Cardiac Surgery: A Randomized Clinical Trial and Systematic Review(2016) OSAWA, Eduardo A.; RHODES, Andrew; LANDONI, Giovanni; GALAS, Filomena R. B. G.; FUKUSHIMA, Julia T.; PARK, Clarice H. L.; ALMEIDA, Juliano P.; NAKAMURA, Rosana E.; STRABELLI, Tania M. V.; PILEGGI, Brunna; LEME, Alcino C.; FOMINSKIY, Evgeny; SAKR, Yasser; LIMA, Marta; FRANCO, Rafael A.; CHAN, Raquel P. C.; PICCIONI, Marilde A.; MENDES, Priscilla; MENEZES, Suellen R.; BRUNO, Tatiana; GAIOTTO, Fabio A.; LISBOA, Luiz A.; DALLAN, Luiz A. O.; HUEB, Alexandre C.; POMERANTZEFF, Pablo M.; KALIL FILHO, Roberto; JATENE, Fabio B.; AULER JUNIOR, Jose Otavio Costa; HAJJAR, Ludhmila A.Objectives: To evaluate the effects of goal-directed therapy on outcomes in high-risk patients undergoing cardiac surgery. Design: A prospective randomized controlled trial and an updated metaanalysis of randomized trials published from inception up to May 1, 2015. Setting: Surgical ICU within a tertiary referral university-affiliated teaching hospital. Patients: One hundred twenty-six high-risk patients undergoing coronary artery bypass surgery or valve repair. Interventions: Patients were randomized to a cardiac output-guided hemodynamic therapy algorithm (goal-directed therapy group, n = 62) or to usual care (n = 64). In the goal-directed therapy arm, a cardiac index of greater than 3 L/min/m(2) was targeted with IV fluids, inotropes, and RBC transfusion starting from cardiopulmonary bypass and ending 8 hours after arrival to the ICU. Measurements and Main Results: The primary outcome was a composite endpoint of 30-day mortality and major postoperative complications. Patients from the goal-directed therapy group received a greater median (interquartile range) volume of IV fluids than the usual care group (1,000 [625-1,500] vs 500 [500-1,000] mL; p < 0.001], with no differences in the administration of either inotropes or RBC transfusions. The primary outcome was reduced in the goal-directed therapy group (27.4% vs 45.3%; p = 0.037). The goal-directed therapy group had a lower occurrence rate of infection (12.9% vs 29.7%; p = 0.002) and low cardiac output syndrome (6.5% vs 26.6%; p = 0.002). We also observed lower ICU cumulative dosage of dobutamine (12 vs 19 mg/kg; p = 0.003) and a shorter ICU (3 [3-4] vs 5 [4-7] d; p < 0.001) and hospital length of stay (9 [8-16] vs 12 [9-22] d; p = 0.049) in the goal-directed therapy compared with the usual care group. There were no differences in 30-day mortality rates (4.8% vs 9.4%, respectively; p = 0.492). The metaanalysis identified six trials and showed that, when compared with standard treatment, goal-directed therapy reduced the overall rate of complications (goal-directed therapy, 47/410 [11%] vs usual care, 92/415 [22%]; odds ratio, 0.40 [95% CI, 0.26-0.63]; p < 0.0001) and decreased the hospital length of stay (mean difference, -5.44 d; 95% CI, -9.28 to -1.60; p = 0.006) with no difference in postoperative mortality: 9 of 410 (2.2%) versus 15 of 415 (3.6%), odds ratio, 0.61 (95% CI, 0.26-1.47), and p = 0.27. Conclusions: Goal-directed therapy using fluids, inotropes, and blood transfusion reduced 30-day major complications in high-risk patients undergoing cardiac surgery.
- High lactate levels are predictors of major complications after cardiac surgery(2013) HAJJAR, Ludhmila A.; ALMEIDA, Juliano P.; FUKUSHIMA, Julia T.; RHODES, Andrew; VINCENT, Jean-Louis; OSAWA, Eduardo A.; GALAS, Filomena R. B. G.Objective: Although hyperlactatemia after cardiac surgery is common, the implications of raised levels remain controversial. The aim of this study was to evaluate whether high lactate levels after cardiac surgery are predictors of major complications including mortality. Patients and Methods: This was a substudy of TRACS (Transfusion Requirements After Cardiac Surgery), which was designed as a prospective, randomized, controlled trial evaluating the effects of a transfusion strategy on morbidity and mortality. Results: Of the 502 patients enrolled, 52 (10%) had at least 1 major complication. Patients with complications were older, had a higher EuroSCORE, lower left ventricular ejection fraction, lower preoperative hemoglobin, a higher prevalence of renal disease, and received more blood transfusions than the group without complications. Lactate levels were higher in the group with complications at the end of surgery (3.6 mmol/L [2.8-5.1] vs 3.3 mmol/L [2.2-4.8]; P = .018), immediately after intensive care unit (ICU) admission (0 hour) (4.4 mmol/L [3.1-8.4] vs 4 mmol/L [2.6-6.4]; P = .048); 6 hours (4 mmol/L [2.7-5.8] vs 2.6 mmol/L [2-3.6], P < .001), and 12 hours after admission (2.3 mmol/L [1.8-3.2] vs 1.7 mmol/L [1.3-2]; P < .001). In a multivariate model, higher age (odds ratio [OR], 1.048, 95% confidence interval [CI], 1.011-1.086; P = .010), left ventricular ejection fraction (LVEF) lower than 40% (OR, 3.03; 95% CI, 1.200-7.510; P = .019 compared with LVEF of 40%-59%; OR, 3.571; 95% CI, 1.503-8.196; P = .004 compared with LVEF higher than 60%), higher EuroSCORE (OR, 1.138; 95% CI; 1.007-1.285; P = .038), red blood cell transfusion (OR, 1.230; 95% CI, 1.086-1.393; P = .001), and lactate levels 6 hours after ICU admission (OR, 3.28, 95% CI; 1.61-6.69; P = .001) are predictors of major complications. Conclusions: Hyperlactatemia 6 hours after ICU admission is an independent risk factor for worse outcomes in adult patients after cardiac surgery.
- Transfusion Requirements in Surgical Oncology Patients A Prospective, Randomized Controlled Trial(2015) ALMEIDA, Juliano Pinheiro de; VINCENT, Jean-Louis; GALAS, Filomena Regina Barbosa Gomes; ALMEIDA, Elisangela Pinto Marinho de; FUKUSHIMA, Julia T.; OSAWA, Eduardo A.; BERGAMIN, Fabricio; PARK, Clarice Lee; NAKAMURA, Rosana Ely; FONSECA, Silvia M. R.; CUTAIT, Guilherme; ALVES, Joseane Inacio; BAZAN, Mellik; VIEIRA, Silvia; SANDRINI, Ana C. Vieira; PALOMBA, Henrique; RIBEIRO JR., Ulysses; CRIPPA, Alexandre; DALLOGLIO, Marcos; DIZ, Maria del Pilar Estevez; KALIL FILHO, Roberto; AULER JR., Jose Otavio Costa; RHODES, Andrew; HAJJAR, Ludhmila AbrahaoBackground: Several studies have indicated that a restrictive erythrocyte transfusion strategy is as safe as a liberal one in critically ill patients, but there is no clear evidence to support the superiority of any perioperative transfusion strategy in patients with cancer. Methods: In a randomized, controlled, parallel-group, double-blind (patients and outcome assessors) superiority trial in the intensive care unit of a tertiary oncology hospital, the authors evaluated whether a restrictive strategy of erythrocyte transfusion (transfusion when hemoglobin concentration <7 g/dl) was superior to a liberal one (transfusion when hemoglobin concentration <9 g/dl) for reducing mortality and severe clinical complications among patients having major cancer surgery. All adult patients with cancer having major abdominal surgery who required postoperative intensive care were included and randomly allocated to treatment with the liberal or the restrictive erythrocyte transfusion strategy. The primary outcome was a composite endpoint of mortality and morbidity. Results: A total of 198 patients were included as follows: 101 in the restrictive group and 97 in the liberal group. The primary composite endpoint occurred in 19.6% (95% CI, 12.9 to 28.6%) of patients in the liberal-strategy group and in 35.6% (27.0 to 45.4%) of patients in the restrictive-strategy group (P = 0.012). Compared with the restrictive strategy, the liberal transfusion strategy was associated with an absolute risk reduction for the composite outcome of 16% (3.8 to 28.2%) and a number needed to treat of 6.2 (3.5 to 26.5). Conclusion: A liberal erythrocyte transfusion strategy with a hemoglobin trigger of 9 g/dl was associated with fewer major postoperative complications in patients having major cancer surgery compared with a restrictive strategy.
- Hemostatic effects of fibrinogen concentrate compared with cryoprecipitate in children after cardiac surgery: A randomized pilot trial(2014) GALAS, Filomena R. B. G.; ALMEIDA, Juliano P. de; FUKUSHIMA, Julia T.; VINCENT, Jean Louis; OSAWA, Eduardo A.; ZEFERINO, Suely; CAMARA, Ligia; GUIMARAES, Vanessa A.; JATENE, Marcelo B.; HAJJAR, Ludhmila A.Objectives: Acute acquired hypofibrinogenemia in children undergoing cardiac surgery is a major concern because it often results in perioperative bleeding and high rates of allogeneic blood transfusion. Fibrinogen concentrate has been proposed as an alternative to cryoprecipitate (the gold standard therapy), with minimal infectious and immunologic risks. Our objective was to investigate the efficacy and safety of fibrinogen concentrate in children undergoing cardiac surgery. Methods: In this randomized pilot study, patients were allocated to receive fibrinogen concentrate (60 mg/kg) or cryoprecipitate (10 mL/kg) if bleeding was associated with fibrinogen levels <1 g/dL after cardiopulmonary bypass weaning. The primary outcome was postoperative blood losses during the 48 hours after surgery. Results: A total of 63 patients were included in the study, 30 in the fibrinogen concentrate group and 33 in the cryoprecipitate group. The median 48-hour blood loss was not significantly different between the 2 groups (320 mL [interquartile range, 157-750] vs 410 mL [interquartile range, 215-510], respectively; P = .672). After treatment, plasma fibrinogen concentration increased similarly following administration of both products. There were no differences in allogeneic blood transfusion after intervention treatment. Conclusions: A large trial comparing fibrinogen concentrate and cryoprecipitate in the management of children with acute acquired hypofibrinogenemia during heart surgery is feasible. The preliminary results of our study showed that the use of fibrinogen concentrate was as efficient and safe as cryoprecipitate in the management of bleeding children undergoing cardiac surgery.