摘要
BACKGROUND Coronavirus disease 2019(COVID-19)can be associated with life-threatening organ dysfunction due to septic shock,frequently requiring intensive care unit(ICU)admission,respi-ratory and vasopressor support.There-fore,clear clinical criteria are pivotal for early recognition of patients more likely to need prompt organ support.Although most patients with severe COVID-19 meet the Sepsis-3.0 criteria for septic shock,it has been increasingly recognized that hyperlactatemia is frequently absent,possibly leading to an underestimation of illness severity and mortality risk.AIM To identify the proportion of severe COVID-19 patients with vasopressor support requirements,with and without hyperlactatemia,and describe their clinical outcomes and mortality METHODS We performed a single-center prospective cohort study.All adult patients admitted to the ICU with COVID-19 were included in the analysis and were further divided into three groups:Sepsis group,without both criteria;Vasoplegic Shock group,with persistent hypotension and vasopressor support without hyperlactatemia;and Septic Shock 3.0 group,with both criteria.COVID-19 was diagnosed using clinical and radiologic criteria with a severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)positive RT-PCR test.RESULTS 118 patients(mean age 63 years,87%males)were included in the analysis(n=51 Sepsis group,n=26 Vasoplegic Shock group,and n=41 Septic Shock 3.0 group).SOFA score at ICU admission and ICU length of stay were different between the groups(P<0.001).Mortality was significantly higher in the Vasoplegic Shock and Septic Shock 3.0 groups when compared with the Sepsis group(P<0.001)without a significant difference between the former two groups(P=0.713).The log rank tests of Kaplan-Meier survival curves were also different(P=0.007).Ventilator-free days and vasopressor-free days were different between the Sepsis vs Vasoplegic Shock and Septic Shock 3.0 groups(both P<0.001),and similar in the last two groups(P=0.128 and P=0.133,respectively).Logistic regression identified the maximum dose of vasopressor therapy used(AOR 1.046;95%CI:1.012-1.082,P=0.008)and serum lactate level(AOR 1.542;95%CI:1.055-2.255,P=0.02)as the major explanatory variables of mortality rates(R20.79).CONCLUSION In severe COVID-19 patients,the Sepsis 3.0 criteria of septic shock may exclude approximately one third of patients with a similarly high risk of a poor outcome and mortality rate,which should be equally addressed.
