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Moreno-Torres, Víctor; Royuela, Ana; Múñez-Rubio, Elena; Gutierrez-Rojas, Ángela; Mills-Sánchez, Patricia; Ortega, Alfonso; Tejado-Bravo, Sandra; García-Sanz, Javier; Muñoz-Serrano, Alejandro; Calderón-Parra, Jorge; Fernández-Cruz, Ana; Ramos-Martínez, Antonio
Journal of critical care, October 2022, 2022-10-00, 20221001, Volume: 71Journal Article
To evaluate Red blood cell distribution width (RDW) as a sepsis prognostic biomarker. 203 septic patients admitted to the ICU. Analysis of RDW dynamics, hospital mortality discrimination ability and the added value when incorporated to the SOFA, LODS, SAPS-II and APACHE-II scores using the AUC-ROC. Non-survivors presented higher RDW values during the first week after ICU admission (p = 0.048). Only SOFA and RDW were independently associated with mortality when adjusted by Charlson, immunosuppression, nosocomial infection, NEWS2, SAPS-II, septic shock and haemoglobin (p < 0.05). After adjustment, AUC-ROC was 0.827, 0.822, 0.824, 0.834 and 0.812 for each model including admission, 24, 48 and 72-h and 7-days RDW, respectively. When added to the scores, 24-h RDW and admission RDW improved their discrimination ability (SOFA AUC-ROC = 0.772 vs 0.812 SOFA + admission RDW, p = 0.041; LODS AUC-ROC = 0.687 vs 0.710, p = 0.002; SAPS-II AUC-ROC = 0.734 vs 0.785, p = 0.021; APACHE-II AUC-ROC = 0.672 vs 0.755, p = 0.003). Admission RDW with SOFA presented the better discrimination ability for mortality. RDW is an independent prognostic marker of death in septic patients admitted in the ICU that improves SOFA, LODS, APACHE-II and SAPS-II discrimination ability. This parameter could be incorporated to the prognostic scores as a marker of systemic dysfunction and dysregulated inflammatory response. •During the first week after ICU admission, non-survivors septic patients presented higher RDW.•Along with SOFA, RDW was the only independently factor associated with mortality after adjustment.•When added to the prognostic scores, 24-hoursh RDW and mostly admission RDW improved their discrimination ability.•RDW is an available parameter that reflects the dysregulated inflammatory response and systemic dysfunction.
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