A new adjunct in the differentiation of encephalitis and meningitis after negative cerebrospinal fluid culture: systemic inflammatory immune index

Objectives: Encephalitis and meningitis can have serious potentially life-threatening consequences. This study aims to investigate whether the effects of systemic immune inflammation index (SII) neutrophil/lymphocyte (N/L) ratio on differential diagnosis, severity, clinical outcomes are superior each other in patients diagnosed with encephalitis emergency department. Methods: Patients aged 18 years older who presented adult department hospital were or between January December 2022 included study. under those missing data their files excluded from N/L ratio, SII values, associated parameters compared group mortality survived both diseases. Results: There significant differences neutrophil, lymphocyte, SII, C-reactive protein (CRP) values patients. significantly lower than was no difference any surviving deceased Conclusions: Simple calculable ratios such as be a supportive parameter diagnosis disease. However, it has been observed that using these indices is not useful tool determining severity prognosis meningitis.