RESUMEN
Importance: Sodium-glucose cotransporter 2 (SGLT-2) inhibitors improve outcomes in patients with type 2 diabetes, heart failure, and chronic kidney disease, but their effect on outcomes of critically ill patients with organ failure is unknown. Objective: To determine whether the addition of dapagliflozin, an SGLT-2 inhibitor, to standard intensive care unit (ICU) care improves outcomes in a critically ill population with acute organ dysfunction. Design, Setting, and Participants: Multicenter, randomized, open-label, clinical trial conducted at 22 ICUs in Brazil. Participants with unplanned ICU admission and presenting with at least 1 organ dysfunction (respiratory, cardiovascular, or kidney) were enrolled between November 22, 2022, and August 30, 2023, with follow-up through September 27, 2023. Intervention: Participants were randomized to 10 mg of dapagliflozin (intervention, n = 248) plus standard care or to standard care alone (control, n = 259) for up to 14 days or until ICU discharge, whichever occurred first. Main Outcomes and Measures: The primary outcome was a hierarchical composite of hospital mortality, initiation of kidney replacement therapy, and ICU length of stay through 28 days, analyzed using the win ratio method. Secondary outcomes included the individual components of the hierarchical outcome, duration of organ support-free days, ICU, and hospital stay, assessed using bayesian regression models. Results: Among 507 randomized participants (mean age, 63.9 [SD, 15] years; 46.9%, women), 39.6% had an ICU admission due to suspected infection. The median time from ICU admission to randomization was 1 day (IQR, 0-1). The win ratio for dapagliflozin for the primary outcome was 1.01 (95% CI, 0.90 to 1.13; P = .89). Among all secondary outcomes, the highest probability of benefit found was 0.90 for dapagliflozin regarding use of kidney replacement therapy among 27 patients (10.9%) in the dapagliflozin group vs 39 (15.1%) in the control group. Conclusion and Relevance: The addition of dapagliflozin to standard care for critically ill patients and acute organ dysfunction did not improve clinical outcomes; however, confidence intervals were wide and could not exclude relevant benefits or harms for dapagliflozin. Trial Registration: ClinicalTrials.gov Identifier: NCT05558098.
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Compuestos de Bencidrilo , Enfermedad Crítica , Glucósidos , Insuficiencia Multiorgánica , Inhibidores del Cotransportador de Sodio-Glucosa 2 , Anciano , Femenino , Humanos , Masculino , Persona de Mediana Edad , Compuestos de Bencidrilo/uso terapéutico , Enfermedad Crítica/terapia , Glucósidos/uso terapéutico , Glucósidos/efectos adversos , Mortalidad Hospitalaria , Unidades de Cuidados Intensivos , Tiempo de Internación , Insuficiencia Multiorgánica/tratamiento farmacológico , Insuficiencia Multiorgánica/mortalidad , Terapia de Reemplazo Renal , Inhibidores del Cotransportador de Sodio-Glucosa 2/uso terapéutico , Inhibidores del Cotransportador de Sodio-Glucosa 2/efectos adversos , BrasilRESUMEN
BACKGROUND: Brazil has been disproportionately affected by COVID-19, placing a high burden on ICUs. RESEARCH QUESTION: Are perceptions of ICU resource availability associated with end-of-life decisions and burnout among health care providers (HCPs) during COVID-19 surges in Brazil? STUDY DESIGN AND METHODS: We electronically administered a survey to multidisciplinary ICU HCPs during two 2-week periods (in June 2020 and March 2021) coinciding with COVID-19 surges. We examined responses across geographical regions and performed multivariate regressions to explore factors associated with reports of: (1) families being allowed less input in decisions about maintaining life-sustaining treatments for patients with COVID-19 and (2) emotional distress and burnout. RESULTS: We included 1,985 respondents (57% physicians, 14% nurses, 12% respiratory therapists, 16% other HCPs). More respondents reported shortages during the second surge compared with the first (P < .05 for all comparisons), including lower availability of intensivists (66% vs 42%), ICU nurses (53% vs 36%), ICU beds (68% vs 22%), and ventilators for patients with COVID-19 (80% vs 70%); shortages were highest in the North. One-quarter of HCPs reported that families were allowed less input in decisions about maintaining life-sustaining treatments for patients with COVID-19, which was associated with lack of intensivists (adjusted relative risk [aRR], 1.37; 95% CI, 1.05-1.80) and ICU beds (aRR, 1.71; 95% CI, 1.16-2.62) during the first surge and lack of N95 masks (aRR, 1.43; 95% CI, 1.10-1.85), noninvasive positive pressure ventilation (aRR, 1.56; 95% CI, 1.18-2.07), and oxygen concentrators (aRR, 1.50; 95% CI, 1.13-2.00) during the second surge. Burnout was higher during the second surge (60% vs 71%; P < .001), associated with witnessing colleagues at one's hospital contract COVID-19 during both surges (aRR, 1.55 [95% CI, 1.25-1.93] and 1.31 [95% CI, 1.11-1.55], respectively), as well as worries about finances (aRR, 1.28; 95% CI, 1.02-1.61) and lack of ICU nurses (aRR, 1.25; 95% CI, 1.02-1.53) during the first surge. INTERPRETATION: During the COVID-19 pandemic, ICU HCPs in Brazil experienced substantial resource shortages, health care disparities between regions, changes in end-of-life care associated with resource shortages, and high proportions of burnout.
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Agotamiento Profesional , COVID-19 , Brasil/epidemiología , Agotamiento Profesional/epidemiología , Agotamiento Profesional/terapia , COVID-19/epidemiología , COVID-19/terapia , Cuidados Críticos , Personal de Salud , Humanos , Unidades de Cuidados Intensivos , Pandemias , Encuestas y CuestionariosRESUMEN
The rapid development of efficacious and safe vaccines against coronavirus disease 2019 (COVID-19) has been instrumental in mitigating the transmission of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Moreover, the emergence of SARS-CoV-2 variants raised concerns on the efficacy of these vaccines. Herein, we report two cases of breakthrough infections with the P1 variant in patients vaccinated with CoronaVac, which is one of the two vaccines authorized for emergency use in the Brazilian immunization program. Our observations suggest that the vaccine reduced the severity of the disease and highlight the potential risk of illness following vaccination and subsequent infection with the P1 variant as well as for continued efforts to prevent and diagnose infection in vaccinated persons.
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Anticuerpos Antivirales/sangre , Vacunas contra la COVID-19/inmunología , COVID-19/diagnóstico por imagen , COVID-19/inmunología , SARS-CoV-2/inmunología , Vacunación/efectos adversos , Brasil , COVID-19/prevención & control , Prueba de Ácido Nucleico para COVID-19 , Vacunas contra la COVID-19/administración & dosificación , Ensayos Clínicos como Asunto , Dexametasona/uso terapéutico , Humanos , Masculino , Persona de Mediana Edad , SARS-CoV-2/genética , Índice de Severidad de la Enfermedad , Tomografía Computarizada por Rayos X , Resultado del Tratamiento , Vacunación/estadística & datos numéricos , Tratamiento Farmacológico de COVID-19RESUMEN
BACKGROUND: Intra-abdominal hypertension (IAH) is frequently encountered in critically ill surgical patients. We aimed to evaluate the incidence of IAH after orthotopic liver transplant (OLT) and its impact on organ function, hospital length-of-stay (LOS), and death. METHODS: This prospective, observational, cohort study evaluated consecutive adult patients admitted in the ICU after undergoing OLT. Intra-abdominal pressure (IAP) was measured every 4-6 h for 3 days. Worsening IAP was defined as a gradual increase in IAP over a period of time. Daily fluid balance was the daily sum of all intakes minus the output. RESULTS: IAH was observed in 48% of the patients within the first 3 days after ICU admission, while ACS was diagnosed in 15%. Patients with IAH had a higher positive fluid balance at day 1 (1764 mL [812-2733 mL] vs. 1301 mL [241-1904 mL], p = 0.025). Worsening IAH was associated with fewer days free of organ dysfunction. IAH within 72 h after ICU admission was independently associated with a composite outcome of death or a longer ICU LOS (odds ratio 2.9; CI 95% 1.02-8.25, p = 0.043). CONCLUSION: After OLT, nearly half of the patients presented IAH, that was associated with unfavorable outcomes.
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Hipertensión Intraabdominal , Trasplante de Hígado , Adulto , Estudios de Cohortes , Humanos , Hipertensión Intraabdominal/epidemiología , Hipertensión Intraabdominal/etiología , Estudios Prospectivos , Equilibrio HidroelectrolíticoRESUMEN
Herein, we report a case of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and dengue coinfection, presented as a fatal stroke in our hospital, in São José do Rio Preto, São Paulo State, a Brazilian city hyperendemic for dengue viruses and other arthropod-borne viruses (arboviruses) and currently facing a surge of SARS-CoV-2 cases. This case is the first described in the literature and contributes to the better understanding of clinical presentations of two important diseases in a tropical setting.
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COVID-19/complicaciones , Coinfección/complicaciones , Virus del Dengue/patogenicidad , Dengue/complicaciones , SARS-CoV-2/patogenicidad , Accidente Cerebrovascular/etiología , Accidente Cerebrovascular/virología , Arbovirus/patogenicidad , Brasil , COVID-19/virología , Coinfección/virología , Dengue/virología , Femenino , Humanos , Persona de Mediana EdadRESUMEN
BACKGROUND: Several studies suggest that hemodynamic optimization therapies can reduce complications, the length of hospital stay and costs. However, Brazilian data are scarce. Therefore, the objective of this analysis was to evaluate whether the improvement demonstrated by hemodynamic optimization therapy in surgical patients could result in lower costs from the perspective of the Brazilian public unified health system. METHODS: A meta-analysis was performed comparing surgical patients who underwent hemodynamic optimization therapy (intervention) with patients who underwent standard therapy (control) in terms of complications and hospital costs. The cost-effectiveness analysis evaluated the clinical and financial benefits of hemodynamic optimization protocols for surgical patients. The analysis considered the clinical outcomes of randomized studies published in the last 20 years that involved surgeries and hemodynamic optimization therapy. Indirect costs (equipment depreciation, estate and management activities) were not included in the analysis. RESULTS: A total of 21 clinical trials with a total of 4872 surgical patients were selected. Comparison of the intervention and control groups showed lower rates of infectious (RR = 0.66; 95% CI = 0.58-0.74), renal (RR = 0.68; 95% CI = 0.54-0.87), and cardiovascular (RR = 0.87; 95% CI = 0.76-0.99) complications and a nonstatistically significant lower rate of respiratory complications (RR = 0.82; 95% CI = 0.67-1.02). There was no difference in mortality (RR = 1.02; 95% CI = 0.80-1.3) between groups. In the analysis of total costs, the intervention group showed a cost reduction of R$396,024.83-BRL ($90,161.38-USD) for every 1000 patients treated compared to the control group. The patients in the intervention group showed greater effectiveness, with 1.0 fewer days in the intensive care unit and hospital. In addition, there were 333 fewer patients with complications, with a consequent reduction of R$1,630,341.47-BRL ($371,173.27-USD) for every 1000 patients treated. CONCLUSIONS: Hemodynamic optimization therapy is cost-effective and would increase the efficiency of and decrease the burden of the Brazilian public health system.
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Análisis Costo-Beneficio/métodos , Hemodinámica/fisiología , Atención Perioperativa/economía , Atención Perioperativa/métodos , Procedimientos Quirúrgicos Operativos , Brasil , Análisis Costo-Beneficio/economía , Análisis Costo-Beneficio/estadística & datos numéricos , Humanos , Tiempo de Internación/economía , Tiempo de Internación/estadística & datos numéricosRESUMEN
BACKGROUND: The effectiveness and safety of balanced crystalloid fluids compared with saline (0.9% sodium chloride) as a fluid of choice in critically ill patients remain unclear. The effects of different fluid infusion rates on outcomes are also unknown. OBJECTIVES: To test the hypothesis that a balanced crystalloid solution, compared with saline, decreases 90-day all-cause mortality among critically ill patients; and to test the hypothesis that slow, compared with rapid, infusion rate decreases 90-day mortality in this population of patients. METHODS: The Balanced Solution versus Saline in Intensive Care Study (BaSICS) is a pragmatic, 2 ??2 factorial, randomised controlled trial. A total of 11 000 patients will be recruited from at least 100 Brazilian intensive care units. Patients will be randomised to receive Plasma-Lyte 148 or saline, and to rapid infusion (999 mL/h) or slow infusion (333 mL/h). Study fluids will be used for resuscitation episodes (at rapid or slow infusion rates), dilution of compatible medications and maintenance solutions. Patients, health care providers and investigators will be blinded to the solutions being tested. The rate of bolus infusion will not be blinded. OUTCOMES: The primary outcome is 90-day all-cause mortality. Secondary outcomes are: incidence of renal failure requiring renal replacement therapy within 90 days, incidence of acute kidney injury (Kidney Disease: Improving Global Outcomes stages 2 and 3), incidence of non-renal organ dysfunction assessed by Sepsis-related Organ Failure Assessment score at Days 3 and 7, and number of mechanical ventilationfree days within the first 28 days after randomisation. RESULTS AND CONCLUSIONS: The BaSICS trial will provide robust evidence on whether a balanced crystalloid, compared with saline, improves important patient outcomes in critically ill patients. BaSICS will also provide relevant information on whether bolus infusion rate affects outcomes in this population. TRIAL REGISTRATION: ClinicalTrials.gov NCT02875873.
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Enfermedad Crítica/mortalidad , Enfermedad Crítica/terapia , Fluidoterapia/métodos , Unidades de Cuidados Intensivos , Cloruro de Sodio/administración & dosificación , Anciano , Brasil , Causas de Muerte , Método Doble Ciego , Gluconatos/administración & dosificación , Mortalidad Hospitalaria , Humanos , Infusiones Intravenosas/métodos , Cloruro de Magnesio/administración & dosificación , Selección de Paciente , Cloruro de Potasio/administración & dosificación , Proyectos de Investigación , Acetato de Sodio/administración & dosificaciónRESUMEN
BACKGROUND: Many critically ill patients who die will do so after a decision has been made to withhold/withdraw life-sustaining therapy. The objective of this study was to document the characteristics of ICU patients with a decision to withhold/withdraw life-sustaining treatment, including the types of supportive treatments used, patterns of organ dysfunction, and international differences, including gross national income (GNI). METHODS: In this observational cohort study conducted in 730 ICUs in 84 countries, all adult patients admitted between May 8, 2012, and May 18, 2012 (except admissions for routine postoperative surveillance), were included. RESULTS: The analysis included 9,524 patients, with a hospital mortality of 24%. A decision to withhold/withdraw life-sustaining treatment was reported during the ICU stay in 1,259 patients (13%), including 820 (40%) nonsurvivors and 439 (5%) survivors. Hospital mortality in patients with a decision to withhold/withdraw life-sustaining treatment was 69%. The proportion of deaths in patients with a decision to withhold/withdraw life-sustaining treatment ranged from 10% in South Asia to 67% in Oceania. Decisions to withhold/withdraw life-sustaining treatment were less frequent in low/lower-middle GNI countries than in high GNI countries (6% vs 14%; P < .001). Greater disease severity, presence of ≥ 2 organ failures, severe comorbidities, medical and trauma admissions, and admission from the ED or hospital floor were independent predictors of a decision to withhold/withdraw life-sustaining treatment. CONCLUSIONS: There is considerable worldwide variability in decisions to withhold/withdraw life-sustaining treatments. Interestingly, almost one-third of patients with a decision to withhold/withdraw life-sustaining treatment left the hospital alive.
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Cuidados Críticos/estadística & datos numéricos , Cuidados para Prolongación de la Vida/estadística & datos numéricos , Cuidado Terminal/estadística & datos numéricos , Privación de Tratamiento/estadística & datos numéricos , Toma de Decisiones Clínicas/ética , Estudios de Cohortes , Cuidados Críticos/ética , Femenino , Salud Global , Humanos , Unidades de Cuidados Intensivos/ética , Unidades de Cuidados Intensivos/estadística & datos numéricos , Cuidados para Prolongación de la Vida/ética , Masculino , Persona de Mediana Edad , Pronóstico , Respiración Artificial/ética , Respiración Artificial/estadística & datos numéricos , Cuidado Terminal/ética , Privación de Tratamiento/éticaRESUMEN
BACKGROUND: This study was undertaken to evaluate the clinical characteristics and outcomes of patients with cancer requiring nonpalliative ventilatory support. METHODS: This was a secondary analysis of a prospective cohort study conducted in 28 Brazilian ICUs evaluating adult patients with cancer requiring invasive mechanical ventilation (MV) or noninvasive ventilation (NIV) during the first 48 h of their ICU stay. We used logistic regression to identify the variables associated with hospital mortality. RESULTS: Of 717 patients, 263 (37%) (solid tumors = 227; hematologic malignancies = 36) received ventilatory support. NIV was initially used in 85 patients (32%), and 178 (68%) received MV. Additionally, NIV followed by MV occurred in 45 patients (53%). Hospital mortality rates were 67% in all patients, 40% in patients receiving NIV only, 69% when NIV was followed by MV, and 73% in patients receiving MV only (P < .001). Adjusting for the type of admission, newly diagnosed malignancy (OR, 3.59; 95% CI, 1.28-10.10), recurrent or progressive malignancy (OR, 3.67; 95% CI, 1.25-10.81), tumoral airway involvement (OR, 4.04; 95% CI, 1.30-12.56), performance status (PS) 2 to 4 (OR, 2.39; 95% CI, 1.24-4.59), NIV followed by MV (OR, 3.00; 95% CI, 1.09-8.18), MV as initial ventilatory strategy (OR, 3.53; 95% CI, 1.45-8.60), and Sequential Organ Failure Assessment score (each point except the respiratory domain) (OR, 1.15; 95% CI, 1.03-1.29) were associated with hospital mortality. Hospital survival in patients with good PS and nonprogressive malignancy and without tumoral airway involvement was 53%. Conversely, patients with poor functional capacity and cancer progression had unfavorable outcomes. CONCLUSIONS: Patients with cancer with good PS and nonprogressive disease requiring ventilatory support should receive full intensive care, because one-half of these patients survive. On the other hand, provision of palliative care should be considered the main goal for patients with poor PS and progressive underlying malignancy.
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Pacientes Internos , Unidades de Cuidados Intensivos , Neoplasias/terapia , Ventilación no Invasiva/métodos , Cuidados Paliativos/métodos , Adulto , Brasil/epidemiología , Femenino , Estudios de Seguimiento , Mortalidad Hospitalaria/tendencias , Humanos , Tiempo de Internación/tendencias , Masculino , Persona de Mediana Edad , Neoplasias/mortalidad , Pronóstico , Estudios Prospectivos , Resultado del TratamientoRESUMEN
PURPOSE OF REVIEW: Using perioperative goal-directed therapy (GDT) or peroperative hemodynamic optimization significantly reduces postoperative complications and risk of death in patients undergoing noncardiac major surgeries. In this review, we discuss the main changes in the field of perioperative optimization over the last few years. RECENT FINDINGS: One of the key aspects that has changed in the last decade is the shift from invasive monitoring with pulmonary artery catheters (PACs) to less or minimally invasive monitoring systems. The evaluation of intravascular fluid volume deficits has also changed dramatically from the use of static indices to the assessment of fluid responsiveness using either dynamic indices or functional hemodynamic. Finally, attention has been directed toward more restrictive strategies of crystalloids as maintenance fluids. SUMMARY: GDT is safe and more likely to tailor the amount of fluids given to the amount of fluids actually needed. This approach includes assessment of fluid responsiveness and, if necessary, the use of inotropes; moreover, this approach can be coupled with a restrictive strategy for maintenance fluids. These strategies have been increasingly incorporated into protocols for perioperative hemodynamic optimization in high-risk patients undergoing major surgery, resulting in more appropriate use of fluids, vasopressors, and inotropes.
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Fluidoterapia/métodos , Hemodinámica/fisiología , Hipovolemia/prevención & control , Monitoreo Fisiológico/métodos , Atención Perioperativa/métodos , Complicaciones Posoperatorias/prevención & control , Cateterismo de Swan-Ganz/estadística & datos numéricos , Fluidoterapia/estadística & datos numéricos , Humanos , Hipovolemia/terapia , Periodo PerioperatorioRESUMEN
INTRODUCTION: Optimal fluid management is crucial for patients who undergo major and prolonged surgery. Persistent hypovolemia is associated with complications, but fluid overload is also harmful. We evaluated the effects of a restrictive versus conventional strategy of crystalloid administration during goal-directed therapy in high-risk surgical patients. METHODS: We conducted a prospective, randomized, controlled study of high-risk patients undergoing major surgery. For fluid maintenance during surgery, the restrictive group received 4 ml/kg/hour and the conventional group received 12 ml/kg/hour of Ringer's lactate solution. A minimally invasive technique (the LiDCO monitoring system) was used to continuously monitor stroke volume and oxygen delivery index (DO2I) in both groups. Dobutamine was administered as necessary, and fluid challenges were used to test fluid responsiveness to achieve the best possible DO2I during surgery and for 8 hours postoperatively. RESULTS: Eighty-eight patients were included. The patients' median age was 69 years. The conventional treatment group received a significantly greater amount of lactated Ringer's solution (mean ± standard deviation (SD): 4, 335 ± 1, 546 ml) than the restrictive group (mean ± SD: 2, 301 ± 1, 064 ml) (P < 0.001). Temporal patterns of DO2I were similar between the two groups. The restrictive group had a 52% lower rate of major postoperative complications than the conventional group (20.0% vs 41.9%, relative risk = 0.48, 95% confidence interval = 0.24 to 0.94; P = 0.046). CONCLUSIONS: A restrictive strategy of fluid maintenance during optimization of oxygen delivery reduces major complications in older patients with coexistent pathologies who undergo major surgery. TRIAL REGISTRATION: ISRCTN: ISRCTN94984995.
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Fluidoterapia/métodos , Cuidados Intraoperatorios/métodos , Soluciones Isotónicas/administración & dosificación , Consumo de Oxígeno/fisiología , Complicaciones Posoperatorias/prevención & control , Anciano , Relación Dosis-Respuesta a Droga , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Lactato de Ringer , Medición de Riesgo , Resultado del TratamientoRESUMEN
BACKGROUND: 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. METHODS: 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. RESULTS: 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. CONCLUSIONS: 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.
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Causas de Muerte/tendencias , Insuficiencia Multiorgánica/etiología , Insuficiencia Multiorgánica/mortalidad , Complicaciones Posoperatorias/mortalidad , Adulto , Anciano , Anciano de 80 o más Años , Estudios de Cohortes , Femenino , Humanos , Masculino , Persona de Mediana Edad , Complicaciones Posoperatorias/etiología , Estudios Prospectivos , Factores de Riesgo , Factores de TiempoRESUMEN
Genetic variation in immune response is probably involved in the progression of sepsis and mortality in septic patients. However, findings in the literature are sometimes conflicting or their significance is uncertain. Thus, we investigated the possible association between 12 polymorphisms located in the interleukin-6 (IL6), IL10, TLR-2, Toll-like receptor-4 (TLR-4), tumor necrosis factor-α and tumor necrosis factor-ß (lymphotoxin α--LTA) genes and sepsis. Critically ill patients classified with sepsis, severe sepsis and septic shock and 207 healthy volunteers were analyzed and genotyped. Seven of the nine polymorphisms showed similar distributions in allele frequencies between patients and controls. Interestingly, our data suggest that the IL10-819 and TLR-2 polymorphisms may be potential predictors of sepsis.
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Citocinas/genética , Polimorfismo Genético/genética , Sepsis/genética , Receptores Toll-Like/genética , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Brasil , Estudios de Casos y Controles , Femenino , Frecuencia de los Genes , Predisposición Genética a la Enfermedad , Genotipo , Humanos , Masculino , Persona de Mediana Edad , Sepsis/mortalidad , Índice de Severidad de la Enfermedad , Adulto JovenRESUMEN
Genetic variation in immune response is probably involved in the progression of sepsis and mortality in septic patients. However, findings in the literature are sometimes conflicting or their significance is uncertain. Thus, we investigated the possible association between 12 polymorphisms located in the interleukin-6 (IL6), IL10, TLR-2, Toll-like receptor-4 (TLR-4), tumor necrosis factor-α and tumor necrosis factor-β (lymphotoxin α - LTA) genes and sepsis. Critically ill patients classified with sepsis, severe sepsis and septic shock and 207 healthy volunteers were analyzed and genotyped. Seven of the nine polymorphisms showed similar distributions in allele frequencies between patients and controls. Interestingly, our data suggest that the IL10-819 and TLR-2 polymorphisms may be potential predictors of sepsis.
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Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Masculino , Persona de Mediana Edad , Adulto Joven , Citocinas , Polimorfismo Genético , Sepsis , Receptores Toll-Like , Brasil , Estudios de Casos y Controles , Frecuencia de los Genes , Predisposición Genética a la Enfermedad , Genotipo , Índice de Severidad de la Enfermedad , Sepsis/mortalidadRESUMEN
OBJECTIVE: The aim of the present study was to validate the Simplified Acute Physiology Score II (SAPS II) and 3 (SAPS 3), the Mortality Probability Models III (MPM(0)-III), and the Cancer Mortality Model (CMM) in patients with cancer admitted to several intensive care units (ICU). DESIGN: Prospective multicenter cohort study. SETTING: Twenty-eight ICUs in Brazil. PATIENTS: Seven hundred and seventeen consecutive patients (solid tumors 93%; hematological malignancies 7%) included over a 2-month period. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: Discrimination was assessed by area under receiver operating characteristic (AROC) curves and calibration by Hosmer-Lemeshow goodness-of-fit test. The main reasons for ICU admission were postoperative care (57%), sepsis (15%) and respiratory failure (10%). The ICU and hospital mortality rates were 21 and 30%, respectively. When all 717 patients were evaluated, discrimination was superior for both SAPS II (AROC = 0.84) and SAPS 3 (AROC = 0.84) scores compared to CMM (AROC = 0.79) and MPM(0)-III (AROC = 0.71) scores (P < 0.05 in all comparisons). Calibration was better using CMM and the customized equation of SAPS 3 score for South American countries (CSA). MPM(0)-III, SAPS II and standard SAPS 3 scores underestimated mortality (standardized mortality ratio, SMR > 1), while CMM tended to overestimation (SMR = 0.48). However, using the SAPS 3 for CSA resulted in more precise estimations of the probability of death [SMR = 1.02 (95% confidence interval = 0.87-1.19)]. Similar results were observed when scheduled surgical patients were excluded. CONCLUSIONS: In this multicenter study, the customized equation of SAPS 3 score for CSA was found to be accurate in predicting outcomes in cancer patients requiring ICU admission.
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APACHE , Neoplasias/diagnóstico , Brasil/epidemiología , Femenino , Mortalidad Hospitalaria , Humanos , Unidades de Cuidados Intensivos , Masculino , Persona de Mediana Edad , Neoplasias/mortalidad , Observación , Probabilidad , Pronóstico , Estudios Prospectivos , Curva ROC , Reproducibilidad de los ResultadosRESUMEN
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.
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Cuidados Críticos/estadística & datos numéricos , Mortalidad Hospitalaria/tendencias , Unidades de Cuidados Intensivos/estadística & datos numéricos , Neoplasias/mortalidad , Neoplasias/terapia , Admisión del Paciente/estadística & datos numéricos , Adulto , Anciano , Análisis de Varianza , Brasil , Estudios de Cohortes , Intervalos de Confianza , Femenino , Estudios de Seguimiento , Neoplasias Hematológicas/mortalidad , Neoplasias Hematológicas/patología , Neoplasias Hematológicas/terapia , Humanos , Tiempo de Internación , Modelos Logísticos , Masculino , Persona de Mediana Edad , Análisis Multivariante , Neoplasias/patología , Oportunidad Relativa , Evaluación de Resultado en la Atención de Salud , Probabilidad , Estudios Prospectivos , Análisis de Supervivencia , Resultado del Tratamiento , Adulto JovenRESUMEN
PURPOSE: The aim of the study was to characterize the practices of Brazilian ICU physicians toward sedation and delirium. MATERIALS AND METHODS: A cross-sectional survey was conducted among a convenience sample of critical care physicians between April and June 2008. RESULTS: One thousand fifteen critical care physicians responded. Sedation scoring systems were used by 893 (88.3%) of the respondents. The Ramsay and Richmond Agitation-Sedation Scale were used by 81.9% and 6.8% of the respondents, respectively. Most respondents did not discuss sedation targets (62.8%) or practice daily sedative interruption (68.3%) in most patients. More than half of the respondents (52.7%) used a sedation protocol, and the most used sedatives were midazolam (97.8%), fentanyl (91.5%), and propofol (55%). A significant rate of the respondents (42.7%) estimated that more than 25% of patients under mechanical ventilation have delirium, but 53.5% occasionally assessed patients for delirium. Thirteen percent used specific delirium scales, with the Confusion Assessment Method for intensive care unit (ICU) being the most applied. Delirium was often treated with haloperidol (88.1%); however, atypical antipsychotics (36.3%) and benzodiazepines (42.3%) were also used. CONCLUSIONS: Despite the recent advances in knowledge of sedation and delirium, most of them are still not translated into clinical practice. Significant variation in practice is observed among ICU physicians and represents a potential target for future research and educational interventions.
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Actitud del Personal de Salud , Delirio/diagnóstico , Delirio/prevención & control , Hipnóticos y Sedantes , Unidades de Cuidados Intensivos/organización & administración , Brasil , Protocolos Clínicos , Enfermedad Crítica , Estudios Transversales , Delirio/etiología , Humanos , Hipnóticos y Sedantes/administración & dosificación , Hipnóticos y Sedantes/efectos adversos , Médicos , Pautas de la Práctica en Medicina , Respiración Artificial/métodosRESUMEN
BACKGROUND: Dobutamine is the agent of choice for increasing cardiac output during myocardial depression in humans with septic shock. Studies have shown that beta-adrenoceptor agonists influence nitric oxide generation, probably by modulating cyclic adenosine monophosphate. We investigated the effects of dobutamine on the systemic and luminal gut release of nitric oxide during endotoxic shock in rabbits. MATERIAL/METHODS: Twenty anesthetized and ventilated New Zealand rabbits received placebo or intravenous lipopolysaccharide with or without dobutamine (5 micro g/kg/min). Ultrasonic flow probes placed around the superior mesenteric artery and the abdominal aorta continuously estimated the flow. A segment from the ileum was isolated and perfused, and serum nitrate/nitrite levels were measured in the perfusate solution and the serum every hour. RESULTS: The mean arterial pressure decreased with statistical significance in the lipopolysaccharide group but not in the lipopolysaccharide/dobutamine group. The abdominal aortic flow decreased statistically significantly after lipopolysaccharide administration in both groups but recovered to baseline in the lipopolysaccharide/dobutamine group. The flow in the superior mesenteric artery was statistically significantly higher in the lipopolysaccharide/dobutamine group than in the lipopolysaccharide group at 2 hours. The serum nitrate/nitrite levels were higher in the lipopolysaccharide group and lower in the lipopolysaccharide/dobutamine group than those in the control group. The gut luminal perfusate serum nitrate/nitrite level was higher in the lipopolysaccharide group than in the lipopolysaccharide/dobutamine group. CONCLUSIONS: Dobutamine can decrease total and intestinal nitric oxide production in vivo. Those effects seem to be inversely proportional to the changes in blood flow.
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Dobutamina/farmacología , Mucosa Intestinal/efectos de los fármacos , Mucosa Intestinal/metabolismo , Óxido Nítrico/biosíntesis , Choque Séptico/metabolismo , Animales , Circulación Coronaria/efectos de los fármacos , Frecuencia Cardíaca/efectos de los fármacos , Ácido Láctico/sangre , Lipopolisacáridos/administración & dosificación , Lipopolisacáridos/farmacología , Nitratos/sangre , Nitritos/sangre , Perfusión , Conejos , Choque Séptico/fisiopatologíaRESUMEN
OBJECTIVE: To assess the role of insulin-like growth factor-1 and cholesterol as predictors of acute kidney injury mortality in intensive care unit patients. DESIGN: Prospective cohort study. SETTING: Multidisciplinary adult intensive care unit (24 beds). PATIENTS: Adult patients with acute kidney injury at intensive care unit admission for an 11-month period were considered and a total of 56 patients were admitted in the study. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: At intensive care unit admission serum insulin-like growth factor-1 (ng/mL), total cholesterol (mg/dL), albumin (g/dL), transferrin (mg/dL), total lymphocyte count, triceps skinfold thickness, arm muscle area, and Subjective Global Nutritional Assessment were evaluated. Insulin-like growth factor-1 was significantly lower in nonsurviving as compared with surviving patients (48.5 +/- 24.4 vs. 70.8 +/- 39.9; p = 0.044), as well as cholesterol (80.3 +/- 35.7 vs. 147.4 +/- 53.1; p < 0.001) and albumin (1.9 +/- 0.4 vs. 2.4 +/- 0.7; p = 0.018). Groups were similar regarding transferrin, lymphocyte, triceps skinfold thickness, arm muscle area, and subjective global nutritional assessment. A binary logistic regression model based on insulin-like growth factor-1 < or = median (50.6 ng/mL), presence of sepsis, oliguria, and cholesterol < or = median (96 mg/dL) identified insulin-like growth factor-1 (odds ratio = 7.73; 95% confidence interval 1.19-49.87; p = 0.032), sepsis (odds ratio = 7.28; 95% confidence interval 1.29-40.89; p = 0.024), oliguria (odds ratio = 8.7; 95% confidence interval 1.10-68.77; p = 0.040) and cholesterol (odds ratio = 10.94; 95% confidence interval 1.89-63.29; p = 0.008) as independent covariate for death. CONCLUSIONS: Decreased levels of insulin-like growth factor-1 and cholesterol were clearly related to higher mortality. The close correlation of insulin-like growth factor-1 with nutritional status, its serum stability, and short-half life makes it a suitable candidate for an early and sensitive marker for intensive care unit acute kidney injury mortality.