Do neutrophil-lymphocyte ratio and platelet-lymphocyte ratio have a role in determining mortality in intensive care patients undergoing plasmapheresis? Single-center experience

Introduction: Plasmapheresis is a frequently used procedure that removes the pathogenic components from circulation. We aimed to evaluate the relationship between plasmapheresis, neutrophil–lymphocyte ratio (NLR), platelet–lymphocyte ratio (PLR) and mortality in the intensive care unit (ICU) between 2014 and 2021. Methods: Forty-nine patients (27 females and 22 males) were included. Demographic characteristics, laboratory values of the day of admittance to the ICU, APACHE II scores, and length of stay were recorded. Results: The mean age was 52.73 ± 16.93. APACHE II value (p = 0.003; p < 0.01), NLR ratio (p = 0.001; p < 0.01) and PLR ratio (p = 0.001; p < 0.01) of the surviving group were lower than those of the deceased group, which was statistically significant. Conclusion: As high PLR and NLR levels suggest increased mortality in the ICU population, attention should be paid for increased NLR and PLR when plasmapheresis is decided on in the ICU.