Tempo para evacuação de foco séptico abdominal e mortalidade em portadores de sepse / Time to clearance of abdominal septic focus and mortality in patients with sepsis

RESUMO Objetivo: Aferir a relação entre tempo para evacuação de foco e mortalidade hospitalar em portadores de sepse e choque séptico. Métodos: Estudo observacional, unicêntrico, com análise retrospectiva do tempo para evacuação de foco séptico abdominal. Os pacientes foram classificados conforme o tempo para evacuação do foco em grupo precoce (≤ 12 horas) ou tardio (> 12 horas). Resultados: Foram avaliados 135 pacientes. Não houve associação entre tempo para evacuação do foco e mortalidade hospitalar (≤ 12 horas versus > 12 horas): 52,3% versus 52,9%, com p = 0,137. Conclusão: Não houve diferença na mortalidade hospitalar entre pacientes com sepse ou choque séptico que tiveram foco infeccioso evacuado antes ou após 12 horas do diagnóstico de sepse.

ABSTRACT Objective: To assess the relationship between time to focus clearance and hospital mortality in patients with sepsis and septic shock. Methods: This was an observational, single-center study with a retrospective analysis of the time to clearance of abdominal septic focus. Patients were classified according to the time to focus clearance into an early (≤ 12 hours) or delayed (> 12 hours) group. Results: A total of 135 patients were evaluated. There was no association between time to focus clearance and hospital mortality (≤ 12 hours versus > 12 hours): 52.3% versus 52.9%, with p = 0.137. Conclusion: There was no difference in hospital mortality among patients with sepsis or septic shock who had an infectious focus evacuated before or after 12 hours after the diagnosis of sepsis.

Does SOFA predict outcomes better than SIRS in Brazilian ICU patients with suspected infection? A retrospective cohort study

ABSTRACT We compared the discriminatory capacity of the sequential organ failure assessment (SOFA) versus the systemic inflammatory response syndrome (SIRS) score for predicting ICU mortality, need for and length of mechanical ventilation, ICU stay, and hospitalization in patients with suspected infection admitted to a mixed Brazilian ICU. We performed a retrospective analysis of a longitudinal ICU database from a tertiary hospital in Southern Brazil. Patients were categorized according to whether they met the criteria for sepsis according to SOFA (variation ≥2 points over the baseline clinical condition) and SIRS (SIRS score ≥2 points). From January 2008 to December 2014, 1487 patients were admitted to the ICU due to suspected infection. SOFA ≥2 identified more septic patients than SIRS ≥2 (79.0% [n = 1175] vs. 68.5% [n = 1020], p < 0.001). There was no difference between the two scores in predicting ICU mortality (area under the receiver operating characteristic curve (AUROC) = 0.64 vs. 0.64, p = 0.99). SOFA ≥2 was marginally better than SIRS ≥2 in predicting need for mechanical ventilation (AUROC = 0.64 vs. 0.62, p = 0.001), ICU stay > 7 days (AUROC = 0.65 vs. 0.63, p = 0.004), and length of hospitalization >10 days (AUROC = 0.61 vs. 0.59, p < 0.001). There was no difference between the two scores in predicting mechanical ventilation >7 days.

Ângulo de fase derivado de bioimpedância elétrica em pacientes sépticos internados em unidades de terapia intensiva / Bioelectrical impedance phase angle in septic patients admitted to intensive care units

OBJETIVO: Identificar valores de ângulo de fase em pacientes sépticos, por meio de bioimpedância elétrica, buscando associação com variáveis clínicas e bioquímicas, bem como comparação com valores de ângulo de fase de referência. MÉTODOS: Estudo de coorte, com 50 pacientes sépticos, idade ≥18 anos, internados em unidade de terapia intensiva, avaliados quanto a índices prognósticos (APACHE II e SOFA), evolução clínica (mortalidade, gravidade da sepse e tempo de internação na unidade de terapia intensiva), parâmetros bioquímicos (albumina e proteína C-reativa) e ângulo de fase. RESULTADOS: A média de idade dos pacientes estudados foi de 65,6±16,5 anos, a maioria do gênero masculino (58%) e apresentando choque séptico (60%). A média dos escores APACHE II e SOFA foi de 22,98±7,1 e 7,5±3,4, respectivamente, o tempo de internação na unidade de terapia intensiva dos pacientes que sobreviveram foi de 9 dias (5 a 13) e a taxa de mortalidade foi de 30%. A média do ângulo de fase da amostra total foi de 5,4±2,6° e menor no gênero feminino (p=0,01). Não houve associação entre ângulo de fase e a gravidade da sepse, mortalidade, gênero e idade, assim como não houve correlação entre ângulo de fase, tempo de internação e parâmetros bioquímicos. Comparativamente a dados em população saudável, os valores de ângulo de fase, a depender da idade e gênero, apresentaram-se 1,1 a 1,9 vezes inferiores. CONCLUSÃO: O ângulo de fase médio de pacientes sépticos foi inferior aos valores referência para população saudável, não havendo correlação e associação com as variáveis clínicas e bioquímicas, o que poderia ser atribuído a homogeneidade da amostra.

OBJECTIVE: To calculate the values of the phase angle of septic patients using bioelectrical impedance analysis, correlate the values with clinical and biochemical variables, and compare them to reference values. METHODS: Cohort study conducted with 50 septic patients aged ≥18 years old, admitted to intensive care units, and assessed according to prognostic indexes (APACHE II and SOFA), clinical progression (mortality, severity of sepsis, length of stay in intensive care unit), biochemical parameters (albumin and C-reactive protein), and the phase angle. RESULTS: The average age of the sample was 65.6±16.5 years. Most patients were male (58%) and suffering from septic shock (60%). The average APACHE II and SOFA scores were 22.98±7.1 and 7.5±3.4, respectively. The patients who survived stayed nine days on average (five to 13) in the intensive care unit, and the mortality rate was 30%. The average value of the phase angle was 5.4±2.6° in the total sample and was smaller among the females compared with the males (p=0.01). The phase angle measures did not exhibit an association with the severity of the sepsis, mortality, gender, and age or correlate with the length of hospitalization or the biochemical parameters. The participants' phase angle values adjusted per gender and age were 1.1 to 1.9 times lower compared with the values for a normal population. CONCLUSION: The average value of the phase angle of septic patients was lower compared with the reference values for a healthy population. The phase angle measures did not exhibit association with the clinical and biochemical variables, which might be explained by the sample homogeneity.