Avaliação da influência dos marcadores inflamatórios na mortalidade de pacientes com AVC isquêmico / Evaluation of the influence of inflammatory markers on the mortality of patients with ischemic stroke

INTRODUÇÃO: À medida que a população envelhece e a expectativa de vida aumenta, a incidência global e a prevalência de AVC isquêmico tendem a aumentar significativamente. Nesse contexto, surge a necessidade de avaliar novos marcadores preditores de mortalidade, como a contagem absoluta de monócitos, relação linfócitos sobre monócitos, relação neutrófilos sobre linfócitos e níveis de proteína C reativa ultrassensível, que além de serem de fácil acesso e baixo custo, sugerem indicar desfecho no paciente com AVC agudo. OBJETIVOS: o objetivo deste estudo foi avaliar a associação dos marcadores inflamatórios com a mortalidade de pacientes com AVC isquêmico. MÉTODOS: trata-se de um estudo retrospectivo observacional a partir de prontuários eletrônicos e exames laboratoriais de pacientes com AVC isquêmico em uma unidade hospitalar de Cascavel/PR. Uma análise estatística descritiva foi conduzida para determinar o perfil dos pacientes segundo o desfecho e aplicado um modelo de regressão logística para verificar as variáveis associadas a mortalidade. Foram considerados significativos apenas os dados com p-valor <0,05. RESULTADOS: Dos 65 pacientes que foram admitidos no estudo, 50 receberam alta hospitalar e 15 foram a óbito no hospital. Entre os marcadores inflamatórios, a relação de neutrófilos sobre linfócitos (OR 1,55; p-valor <0,01) mostrou-se significativamente associada a maior chance de óbito. Os pacientes que faleceram apresentaram níveis superiores de PCR ultrassensível, maior contagem absoluta de monócitos, relação linfócitos sobre monócitos diminuída, e relação neutrófilos sobre linfócitos elevada. CONCLUSÃO: a relação de neutrófilos sobre linfócitos elevada pode estar significativamente associada ao desfecho desfavorável após um AVC isquêmico

IINTRODUCTION: As the population ages and life expectancy increases, the global incidence and prevalence of ischemic stroke tends to rise significantly. In this context, the need arises to evaluate new predictive markers of mortality, such as absolute monocyte count, lymphocyte-to-monocyte ratio, neutrophil-to-lymphocyte ratio and C-reactive protein (CRP) levels which, besides being easily accessible and affordable, manage to predict the outcome in patients with acute stroke. OBJECTIVES: the aim of this study was to evaluate the association between inflammatory markers and the mortality in ischemic stroke patients. METHODS: this is a retrospective observational study based on the analysis of electronic medical records and laboratory tests of in-patients who suffered an ischemic stroke in Cascavel/PR. A descriptive statistical analysis was conducted to determine patients´ profile according to the outcome and a logistic regression model was applied in order to verify the variables associated with mortality. Only data with a p-value <0,05 was considered. RESULTS: Out of the 65 patients who suffered an ischemic stroke included in the study, 50 were discharged and 15 died in hospital. Among the inflammatory markers, the neutrophil-tolymphocyte ratio (OR 1.55; p-value <0,01) was associated with a greater chance of death. Patients who died presented with higher levels of ultra-sensitive CRP, higher absolute monocyte count, lower lymphocyte-to-monocyte ratio and higher neutrophil-to- lymphocyte ratio. CONCLUSION: the elevated neutrophil-to-lymphocyte ratio may be significantly associated with negative outcomes following an ischemic stroke

The effect of blood glucose levels on programmed death-1 in patients with severe sepsis and type 2 diabetes mellitus / 中华急诊医学杂志

Objective To investigate the effect of blood glucose levels on peripheral blood T lymphocyte programmed death-1 factor (PD-1) and the prognosis of 28-day in patients with severe sepsis and type 2 diabetes mellitus (T2DM).Methods A total of 106 severe sepsis patients with T2DM and 50 healthy subjects as controls were included in this prospective study.According to the blood glucose levels at admission,patients were divided into three groups:the blood glucose ＜ 6.1 mmol/L group,the blood glucose 6.1 to 11.1 mmol/L group,and the blood glucose ＞ 11.1mmol/L group.The patients were followed up for trace the 28-day outcomes,and the levels of peripheral blood PD-1 + CD4 + T lymphocytes and PD-1 + CD8 + T lymphocytes were detected.The Kaplan-Meier survival curves were used to compare the risk of 28-day death in patients with different blood glucose levels.Results The levels of peripheral blood PD-1 + CD4 + T lymphocytes and PD-1 + CD8 + T lymphocytes were higher in patients with severe sepsis and T2DM than those in healthy subjects.The mortality of blood glucose ＜ 6.1 mmol/L group (56.52％) was higher than that of blood glucose 6.1 to 11.1 mmol/L group (24.3％) and the blood glucose ＞ 11.1 mmol/L group (28.3％) (P ＜ 0.05),Kaplan-Meier survival curve showed that the 28-day mortality risk of patients with blood glucose ＜ 6.1 mmol/L was higher than that of patients with blood glucose 6.1 to 11.1 mmol/L group and blood glucose ＞ 11.1 mmol/L group (The Log-rank test values were 6.523 and 5.794,the P values were 0.011 and 0.016).The level of PD-1 + CD8 + T lymphocytes in the blood glucose ＜ 6.1 mmol/L group was higher than that in the blood glucose 6.1 to 11.1 mmol/L group and the blood glucose ＞ 11.1 mmol/L group (P =0.013).Conclusions The patients with severe sepsis and T2DM getting blood glucose level ＜ 6.1 mmol/L at admission may be suffered from severe immunosuppression,and more attention should be paid to the risk of 28-days mortality in these patients..