Can systemic immune-inflammation index (SII) be used to predict ovarian torsion

Aim: Systemic immune-inflammation index (SII) has been used as a marker in several diseases, but its association with ovarian torsion is unknown. The aim of this study was to determine the diagnostic value of SII preoperatively in patients with ovarian torsion. Material and Methods: In this retrospective study, preoperative neutrophil/lymphocyte ratio (NLR) and SII values were compared in 124 patients with surgically confirmed ovarian torsion and 107 control subjects without ovarian torsion. Results: NLR and SII were statistically higher in the torsion group compared to the control group. The predictive performance of SII for ovarian torsion (AUC = 0.788) was better than NLR (AUC = 0.665). The preoperative NLR and SII cut-off values were 2.48 and 794.04, respectively. Discussion: High SII values can be used to support the surgical decision in patients with suspected torsion. SII is a better predictor of ovarian torsion than NLR.