Publications (14)39.42 Total impact
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Article: Enteral nutrition with eicosapentaenoic acid, γ-linolenic acid and antioxidants in the early treatment of sepsis: results from a multicenter, prospective, randomized, double-blinded, controlled study: the INTERSEPT study.
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ABSTRACT: Enteral nutrition (EN) with eicosapentaenoic acid (EPA)/γ-linolenic acid (GLA) is recommended for mechanically ventilated patients with severe lung injury. EPA/GLA has anti-inflammatory benefits, as evidenced by its association with reduction in pulmonary inflammation, improvement in oxygenation and improved clinical outcomes in patients with severe forms of acute lung injury. This study was a prospective, multicenter, randomized, double-blinded, controlled trial designed to investigate whether EPA/GLA could have an effective role in the treatment of patients with early sepsis (systemic inflammatory response syndrome with confirmed or presumed infection and without any organ dysfunction) by reducing the progression of the disease to severe sepsis (sepsis associated with at least one organ failure) or septic shock (sepsis associated with hypotension despite adequate fluid resuscitation). Secondary outcomes included the development of individual organ failure, increased ICU and hospital length of stay, need for mechanical ventilation and 28-day all-cause mortality. Randomization was concealed, and patients were allocated to receive, for seven days, either an EPA/GLA diet or an isocaloric, isonitrogenous control diet not enhanced with lipids. Patients were continuously tube-fed at a minimum of 75% of basal energy expenditure × 1.3. To evaluate the progression to severe sepsis and/or septic shock, daily screening for individual organ failure was performed. All clinical outcomes were recorded during a 28-day follow-up period. A total of 115 patients in the early stages of sepsis requiring EN were included, among whom 106 were considered evaluable. Intention-to-treat (ITT) analysis demonstrated that patients fed the EPA/GLA diet developed less severe sepsis and/or septic shock than patients fed the control diet (26.3% versus 50%, respectively; P = 0.0259), with similar results observed for the evaluable patients (26.4% versus 50.9% respectively; P = 0.0217). The ITT analysis demonstrated that patients in the study group developed cardiovascular failure (36.2% versus 21%, respectively; P = 0.0381) and respiratory failure (39.6% versus 24.6%, respectively; P = 0.0362) less often than the control group. Similarly, when considering only the evaluable patients, fewer patients developed cardiovascular failure (20.7% versus 37.7%, respectively; P = 0.03) and respiratory failure (26.4% versus 39.6%, respectively; P = 0.04). The percentage of patients fed the EPA/GLA diet requiring invasive mechanical ventilation was reduced compared with controls (ITT patients: 18.9% versus 33.9%, respectively; P = 0.394; evaluable patients: 17.5% versus 34.5%, respectively; P = 0.295). Patients nourished with the EPA/GLA diet remained in the ICU fewer days than the control population (ITT patients: 21.1 ICU-free days versus 14.7 ICU-free days, respectively; P < 0.0001; evaluable patients: 20.8 ICU-free days versus 14.3 ICU-free days, respectively; P < 0.0001) and fewer days at the hospital (ITT patients: 19.5 hospital-free days versus 10.3 hospital-free days, respectively; P < 0.0001; evaluable patients: 19.1 hospital-free days versus 10.2 hospital-free days, respectively; P < 0.001) (all numbers expressed as means). No significant differences in 28-day all-cause mortality were observed (ITT patients: 26.2% EPA/GLA diet versus 27.6% control diet, respectively; P = 0.72; evaluable: 26.4 EPA/GLA diet versus 30.18 control diet, respectively; P = 0.79). These data suggest that EPA/GLA may play a beneficial role in the treatment of enterally fed patients in the early stages of sepsis without associated organ dysfunction by contributing to slowing the progression of sepsis-related organ dysfunction, especially with regard to cardiovascular and respiratory dysfunction. ClinicalTrials.gov: NCT00981877.Critical care (London, England) 06/2011; 15(3):R144. · 4.61 Impact Factor -
Article: Early determinants of death due to multiple organ failure after noncardiac surgery in high-risk patients.
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ABSTRACT: Prediction of perioperative cardiac complications is important in the medical management of patients undergoing noncardiac surgery. However, these patients frequently die as a consequence of primary or secondary multiple organ failure (MOF), often as a result of sepsis. We investigated the early perioperative risk factors for in-hospital death due to MOF in surgical patients. This was a prospective, multicenter, observational cohort study performed in 21 Brazilian intensive care units (ICUs). Adult patients undergoing noncardiac surgery who were admitted to the ICU within 24 hours after operation were evaluated. MOF was characterized by the presence of at least 2 organ failures. To determine the relative risk (RR) of in-hospital death due to MOF, we performed a logistic regression multivariate analysis. A total of 587 patients were included (mean age, 62.4 ± 17 years). ICU and hospital mortality rates were 15% and 20.6%, respectively. The main cause of death was MOF (53%). Peritonitis (RR 4.17, 95% confidence interval [CI] 1.38-12.6), diabetes (RR 3.63, 95% CI 1.17-11.2), unplanned surgery (RR 3.62, 95% CI 1.18-11.0), age (RR 1.04, 95% CI 1 0.01-1.08), and elevated serum lactate concentrations (RR 1.52, 95% CI 1.14-2.02), a high central venous pressure (RR 1.12, 95% CI 1.04-1.22), a fast heart rate (RR 3.63, 95% CI 1.17-11.2) and pH (RR 0.04, 95% CI 0.0005-0.38) on the day of admission were independent predictors of death due to MOF. MOF is the main cause of death after surgery in high-risk patients. Awareness of the risk factors for death due to MOF may be important in risk stratification and can suggest routes for therapy.Anesthesia and analgesia 04/2011; 112(4):877-83. · 3.08 Impact Factor -
Article: Thrombocytopenia in cardiac surgery: diagnostic and prognostic importance.
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ABSTRACT: Patients undergo to cardiac surgery have more probability to develop thrombocytopenia. The heparin induced thrombocytopenia happens in 5% of the patients. The aim from this study was to evaluate the clinical importance from the severe thrombocytopenia in postoperative cardiac surgical patients. It was included cardiac surgical patients with platelets < 150000 cel/mm³ during firsts 24 h from postoperative. All patients underwent evaluation for four Ts score (thrombocytopenia, use preview of heparin, thrombosis and platelets decreased not related to heparin). In order to a four Ts score e" 6 was considered as suggestive of heparin induced thrombocytopenia type II. The mortality rate in intensive care (ICU) and hospital, length of stay, healthy state and incidence from thrombosis were compared in patients with score > 6 (group 1) and < 6 (group 2). It was include 120 patients who met the inclusions criterions. There was no difference between the groups in related to age, gender, time of cardiopulmonary bypass and surgery. However, the incidence of thrombosis was higher in group 1 (23% vs. 0%, P<0.0001), as well as the greater score is related to higher hospital mortality rate. The score > 6, in postoperative cardiac surgical patients, it is associated to higher incidence of thrombosis as well as the greater score is related to higher hospital mortality rate.Brazilian Journal of Cardiovascular Surgery 03/2011; 26(1):47-53. -
Article: A large Venous-Arterial PCO(2) Is Associated with Poor Outcomes in Surgical Patients.
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ABSTRACT: Background. This study evaluated whether large venous-arterial CO(2) gap (PCO(2) gap) preoperatively is associated to poor outcome. Method. Prospective study which included adult high-risk surgical patients. The patients were pooled into two groups: wide [P(v-a)CO(2)] versus narrow [P(v-a)CO(2)]. In order to determine the best value to discriminate hospital mortality, it was applied a ROC (receiver operating characteristic) curve for the [P(v-a)CO(2)] values collected preoperatively, and the most accurate value was chosen as cut-off to define the groups. Results. The study included 66 patients. The [P(v-a)CO(2)] value preoperatively that best discriminated hospital mortality was 5.0 mmHg, area = 0.73. Preoperative patients with [P(v-a)CO(2)] more than 5.0 mmHg presented a higher hospital mortality (36.4% versus 4.5% P = 0.004), higher prevalence of circulatory shock (56.8% versus 22.7% P = 0.01) and acute renal failure postoperatively (27.3% versus 4.5% P = 0.02), and longer hospital length of stays 20.0 (14.0-30.0) versus 13.5 (9.0-25.0) days P = 0.01. Conclusions. The PCO(2) gap values more than 5.0 mmHg preoperatively were associated with worse postoperatively outcome.Anesthesiology Research and Practice 01/2011; 2011:759792. -
Article: Applicability of the simplified acute physiology score (SAPS 3) in Brazilian hospitals.
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ABSTRACT: The SAPS 3 (Simplified Acute Physiology Score 3) prognostic system is composed of 20 parameters, represented by an acute physiology score and assessment of the previous status, aimed at establishing a predictive mortality index for patients admitted to intensive care units (ICU). The objective of this study was to validate this system and determine its discriminatory power in surgical patients in Brazil. This is a prospective study undertaken in two surgical ICUs of two different hospitals over a one-year period; patients younger than 16 years, who stay at the ICU for less than 24 hours, readmitted to the unit, and those admitted for dialysis were excluded from the study. The predictive ability of the SAPS 3 index to differentiate survivors and non-survivors was determined by the ROC curve and calibration by the Hosmer-Lemeshow goodness-of-fit test. One thousand three-hundred and ten patients were included in the study. Gastrointestinal surgeries predominated (34.9%). Eighteen was the lower SAPS 3 index and the highest was 154, with a mean of 48.5 +/- 18.1. The predicted and real hospital mortality was 10.3% and 10.8%, respectively; the standardized mortality ratio (SMR) was 1.04 (95%CI = 1.03-1.07). Calibration by the Hosmer and Lemeshow method showed X(2) = 10.47 p = 0.234. The SAPS 3 score that better discriminated survivors and non-survivors was 57, with sensitivity of 75.8% and specificity 86%. Among the patients with SAPS 3 index higher than 57, 73.5% did not survive versus 26.5% who survived (OR= 1.32, 95%CI 1.23-1.42, p < 0.0001). The SAPS 3 system is valid for the Brazilian population of surgical patients, being a useful indicator of critical patients and to determine greater care in this group.Revista brasileira de anestesiologia 02/2010; 60(1):20-31. -
Article: Characteristics and outcomes of patients with cancer requiring admission to intensive care units: A prospective multicenter study
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ABSTRACT: OBJECTIVE: To evaluate the characteristics and outcomes of patients with cancer admitted to several intensive care units. Knowledge on patients with cancer requiring intensive care is mostly restricted to single-center studies. DESIGN: Prospective, multicenter, cohort study. SETTING: Intensive care units from 28 hospitals in Brazil. PATIENTS: A total of 717 consecutive patients included over a 2-mo period. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: There were 667 (93%) patients with solid tumors and 50 (7%) patients had hematologic malignancies. The main reasons for intensive care unit admission were postoperative care (57%), sepsis (15%), and respiratory failure (10%). Overall hospital mortality rate was 30% and was higher in patients admitted because of medical complications (58%) than in emergency (37%) and scheduled (11%) surgical patients (p < .001). Adjusting for covariates other than the type of admission, the number of hospital days before intensive care unit admission (odds ratio [OR], 1.18; 95% confidence interval [CI], 1.01-1.37), higher Sequential Organ Failure Assessment scores (OR, 1.25; 95% CI, 1.17-1.34), poor performance status (OR, 3.40; 95% CI, 2.19 -5.26), the need for mechanical ventilation (OR, 2.42; 95% CI, 1.51-3.87), and active underlying malignancy in recurrence or progression (OR, 2.42; 95% CI, 1.51-3.87) were associated with increased hospital mortality in multivariate analysis. CONCLUSIONS: This large multicenter study reports encouraging survival rates for patients with cancer requiring intensive care. In these patients, mortality was mostly dependent on the severity of organ failures, performance status, and need for mechanical ventilation rather than cancer-related characteristics, such as the type of malignancy or the presence of neutropenia.Critical Care Medicine 01/2010; 38(1):9-15. · 6.33 Impact Factor -
Article: Criteria for patient admission to an intensive care unit and related mortality rates.
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ABSTRACT: The aim of the study was to evaluate criteria used in clinical practice, for screening of patients for ICU admission. Cohort prospective study in a tertiary hospital. Four groups were compared in relation to ICU admission by ranking priorities into groups 1, 2, 3 and 4; highest priority 1, lowest priority 4. Enrolled were 359 patients, 66 (53.2-75.0) years old. APACHE II was 23 (18-30). The ICU made available 70.4% of beds. Patients who were refused beds in the ICU were older, 66.2 ± 16.1 versus 61.9 ± 15.2 years of age (p= 0.02) and the priority 1 group had less refusal of beds, which means, 39.1% versus 23.8% had beds refused (p=0.01). The opposite occurred with priorities 3 and 4. Patients in priority 3 and 4 showed older ages, score system and more organ dysfunctions as well as more refusals of beds. ICU mortality rates were higher for priority groups 3 and 4 when compared to 1 and 2 priority groups, 86.7% versus 31.3% (p<0.001). Age, score system and organ dysfunctions were greater in priority groups 3 and 4 and these were related with refusal from the ICU. Patients refused admission to the ICU showed higher mortality rates and these remained higher among priority groups 3 and 4 even when patients were admitted to the ICU.Revista da Associação Médica Brasileira 01/2010; 56(5):528-34. · 0.77 Impact Factor -
Article: Characteristics and outcomes of patients with cancer requiring admission to intensive care units: A prospective multicenter study *
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ABSTRACT: Objective: To evaluate the characteristics and outcomes of patients with cancer admitted to several intensive care units. Knowledge on patients with cancer requiring intensive care is mostly restricted to single-center studies. Design: Prospective, multicenter, cohort study. Setting: Intensive care units from 28 hospitals in Brazil. Patients: A total of 717 consecutive patients included over a 2-mo period. Interventions: None. Measurements and Main Results: There were 667 (93%) patients with solid tumors and 50 (7%) patients had hematologic malignancies. The main reasons for intensive care unit admission were postoperative care (57%), sepsis (15%), and respiratory failure (10%). Overall hospital mortality rate was 30% and was higher in patients admitted because of medical complications (58%) than in emergency (37%) and scheduled (11%) surgical patients (p < .001). Adjusting for covariates other than the type of admission, the number of hospital days before intensive care unit admission (odds ratio [OR], 1.18; 95% confidence interval [CI], 1.01–1.37), higher Sequential Organ Failure Assessment scores (OR, 1.25; 95% CI, 1.17–1.34), poor performance status (OR, 3.40; 95% CI, 2.19 –5.26), the need for mechanical ventilation (OR, 2.42; 95% CI, 1.51–3.87), and active underlying malignancy in recurrence or progression (OR, 2.42; 95% CI, 1.51–3.87) were associated with increased hospital mortality in multivariate analysis. Conclusions: This large multicenter study reports encouraging survival rates for patients with cancer requiring intensive care. In these patients, mortality was mostly dependent on the severity of organ failures, performance status, and need for mechanical ventilation rather than cancer-related characteristics, such as the type of malignancy or the presence of neutropenia.Critical Care Medicine 12/2009; 38(1):9-15. · 6.33 Impact Factor -
Article: Does the time of onset of severe sepsis in a surgical intensive care unit influence mortality rates: a single-center retrospective analysis.
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ABSTRACT: The purpose of this study was to investigate possible differences in characteristics and mortality rates between early- and late-onset severe sepsis in surgical intensive care unit (ICU) patients. Prospectively collected data from all adult patients (>18 years) admitted to our 50-bed surgical ICU between 1st March 2004 and 30th July 2006 were analyzed retrospectively. Of 5925 patients admitted during the study period, 234 patients (3.9%) had severe sepsis: 74 (31.6%) early onset and 160 (68.4%) late onset. Respiratory infections (48.1 versus 27.0%, P = .002) and infections of unknown origin (21.9 versus 12.2%, P = .005) were recorded more frequently in patients with late-onset than in those with early-onset severe sepsis; abdominal infections were more frequent in early-onset than in late-onset severe sepsis (20.3% versus 7.5%, P = .005). Gram-positive infections were more frequent in late-onset than in early-onset severe sepsis (63.1 versus 51.4%, P = .036). The time of onset of severe sepsis was not independently associated with an increased risk of ICU (early versus late: odds ratio, 1.1; confidence interval, 0.78-0.59; P = .786) or in-hospital (early versus late: odds ratio, 0.68; 95% confidence interval, 0.36-1.29; P = .689) death. Patterns of infection are different in patients with early-onset and those with late-onset severe sepsis. The time of onset of severe sepsis in surgical ICU patients has no impact on mortality. These data may be important in risk stratification and may be useful in resource allocation in the ICU.Journal of critical care 11/2009; 25(3):391-7. · 2.13 Impact Factor -
Article: Characteristics and outcomes of patients with cancer requiring admission to intensive care units: a prospective multicenter study.
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ABSTRACT: To evaluate the characteristics and outcomes of patients with cancer admitted to several intensive care units. Knowledge on patients with cancer requiring intensive care is mostly restricted to single-center studies. : Prospective, multicenter, cohort study. Intensive care units from 28 hospitals in Brazil. A total of 717 consecutive patients included over a 2-mo period. None. There were 667 (93%) patients with solid tumors and 50 (7%) patients had hematologic malignancies. The main reasons for intensive care unit admission were postoperative care (57%), sepsis (15%), and respiratory failure (10%). Overall hospital mortality rate was 30% and was higher in patients admitted because of medical complications (58%) than in emergency (37%) and scheduled (11%) surgical patients (p < .001). Adjusting for covariates other than the type of admission, the number of hospital days before intensive care unit admission (odds ratio [OR], 1.18; 95% confidence interval [CI], 1.01-1.37), higher Sequential Organ Failure Assessment scores (OR, 1.25; 95% CI, 1.17-1.34), poor performance status (OR, 3.40; 95% CI, 2.19 -5.26), the need for mechanical ventilation (OR, 2.42; 95% CI, 1.51-3.87), and active underlying malignancy in recurrence or progression (OR, 2.42; 95% CI, 1.51-3.87) were associated with increased hospital mortality in multivariate analysis. This large multicenter study reports encouraging survival rates for patients with cancer requiring intensive care. In these patients, mortality was mostly dependent on the severity of organ failures, performance status, and need for mechanical ventilation rather than cancer-related characteristics, such as the type of malignancy or the presence of neutropenia.Critical care medicine 10/2009; 38(1):9-15. · 6.37 Impact Factor -
Article: Influence of tissue perfusion on the outcome of surgical patients who need blood transfusion.
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ABSTRACT: The aim this study was to evaluate the clinical outcome of patients needing intra-operative blood transfusion by tissue perfusion markers. A prospective single center cohort study. Adult patients needing blood transfusion during the intra-operative period were recruited. This study included 61 patients. At the time of blood transfusion the hemoglobin level was 8.4+/-1.8 g/dL. Scv02 has been the best tissue perfusion marker to determine mortality, compared with hematemetric values and other tissue perfusion markers, with a cut-off point at ROC curve equal to 80% (AUC=0.75; sensitivity=80%; specificity=65.2%). Patients who received blood transfusion and had Scv02 <or=80% (N=29), in comparison to those with Scv02>80% (N=32), had lower mortality rates (12.5% vs. 47.1%; p=0.008) and lower incidence of postoperative complications (58.9% vs. 72.9%; p=0.06). Blood transfusion with a Scv02 <or=80% was also associated with reduced use of vasopressors (5.9% vs. 36.8%; p=0.009). Lower incidence of hypoperfusion (17.6% vs. 52.6%; p=0.009), and lower incidence of infection (23.5% vs. 52.6%; p=0.038) in the postoperative period. In major surgeries, Scv02 appears to be an important variable to be taken into consideration to decide for or against blood transfusion, since blood transfusion with adequate perfusion, reflected by Scv02>80%, are associated with worse clinical outcomes.Journal of critical care 04/2009; 24(3):426-34. · 2.13 Impact Factor -
Article: Epidemiology of severe sepsis in the emergency department and difficulties in the initial assistance.
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ABSTRACT: The aim of this study was to determine the occurrence rate, demographics, clinical characteristics, and outcomes of patients with severe sepsis admitted to the emergency department. A prospective study evaluating all patients admitted to the emergency department unit in a public hospital of tertiary complexity in a six-month period was conducted. During this period, the emergency team was trained to diagnose sepsis. Patients who met the diagnostic criteria for severe sepsis were followed until their discharge from the hospital. A total of 5,332 patients were admitted to the emergency department, and 342 met the criteria for severe sepsis/septic shock. The median (interquartile range) age of patients was 74 (65-84) years, and 52.1% were male. The median APACHE II and SOFA scores at diagnosis were 19 (15-25) and 5 (3-7), respectively. The median number of dysfunctional organ systems per patient was 2 (1-3). The median hospital length of stay was 10 (4.7-17) days, and the hospital mortality rate was 64%. Only 31% of the patients were diagnosed by the emergency department team as septic. About 33.5% of the 342 severe sepsis patients admitted to the emergency department were referred to an ICU, with a median time delay of 24 (12-48) hours. Training improved diagnosis and decreased the time delay for septic patients in arriving at the ICU. The occurrence rate of severe sepsis in the emergency department was 6.4%, and the rate of sepsis diagnosed by the emergency department team as well as the number of patients transferred to the ICU was very low. Educational campaigns are important to improve diagnosis and, hence, treatment of severe sepsis.Clinics 09/2008; 63(4):457-64. · 2.06 Impact Factor -
Article: Epidemiological and microbiological analysis of ventilator-associated pneumonia patients in a public teaching hospital.
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ABSTRACT: Ventilator-associated pneumonia (VAP) is the most commonly-acquired infection in patients in intensive care units. We analyzed epidemiological and microbiological characteristics and the outcome, in a cohort of critically-ill patients with confirmed diagnosis of VAP. All patients who had been on mechanical ventilation (MV) for more than 48 hours were included in our study; material collection for microbiological analysis was done within the first 24 hours after beginning treatment or after changing antibiotics. There were 55/265 (20.7%) VAP cases diagnosed, at a rate of 21.6 episodes per 1,000 days of mechanical ventilation. Mean age of the patients was 66 years, with a mean APACHE II score of 26.7 + 7.0; male patients were more prevalent. The mortality rates in the intensive care unit (ICU) and during the hospital stay were 71% and 80%, respectively. MV duration in patients with VAP was 17 (range 3-43) days and among patients who had not developed VAP, 6 (2-32) days (p < 0.0001). 98.2% of the samples were positive, with a high prevalence of Gram-negative bacteria, mainly Acinetobacter calcoaceticus. Risk factors for death included age, MV duration and surgery. VAP incidence in this sample of critically-ill patients was high, with a high mortality rate. Control and prevention strategies based on continuing education of healthcare workers, developed by a multidisciplinary team, should be encouraged to minimize morbimortality of this infection.Brazilian Journal of Infectious Diseases 10/2007; 11(5):482-8. · 1.00 Impact Factor -
Article: Brazilian Sepsis Epidemiological Study (BASES study).
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ABSTRACT: Consistent data about the incidence and outcome of sepsis in Latin American intensive care units (ICUs), including Brazil, are lacking. This study was designed to verify the actual incidence density and outcome of sepsis in Brazilian ICUs. We also assessed the association between the Consensus Conference criteria and outcome This is a multicenter observational cohort study performed in five private and public, mixed ICUs from two different regions of Brazil. We prospectively followed 1383 adult patients consecutively admitted to those ICUs from May 2001 to January 2002, until their discharge, 28th day of stay, or death. For all patients we collected the following data at ICU admission: age, gender, hospital and ICU admission diagnosis, APACHE II score, and associated underlying diseases. During the following days, we looked for systemic inflammatory response syndrome (SIRS), sepsis, severe sepsis, and septic shock criteria, as well as recording the sequential organ failure assessment score. Infection was diagnosed according to CDC criteria for nosocomial infection, and for community-acquired infection, clinical, radiological and microbiological parameters were used. For the whole cohort, median age was 65.2 years (49-76), median length of stay was 2 days (1-6), and the overall 28-day mortality rate was 21.8%. Considering 1383 patients, the incidence density rates for sepsis, severe sepsis and septic shock were 61.4, 35.6 and 30.0 per 1000 patient-days, respectively. The mortality rate of patients with SIRS, sepsis, severe sepsis and septic shock increased progressively from 24.3% to 34.7%, 47.3% and 52.2%, respectively. For patients with SIRS without infection the mortality rate was 11.3%. The main source of infection was lung/respiratory tract. Our preliminary data suggest that sepsis is a major public health problem in Brazilian ICUs, with an incidence density about 57 per 1000 patient-days. Moreover, there was a close association between ACCP/SCCM categories and mortality rate.Critical care (London, England) 09/2004; 8(4):R251-60. · 4.61 Impact Factor
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2008–2010
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Hospital do Servidor Público Estadual "Francisco Morato de Oliveira"
São Paulo, Estado de Sao Paulo, Brazil
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