Pan-immune inflammation value and system inflammation response index associated with prolonged hospital stay of thyroid nodule patients undergoing ultrasound-guided microwave ablation, both aged ≤55 years and > 55 years

Background: The preoperative immune inflammatory status may affect the prognosis of thyroid nodule patients performed ultrasound-guided microwave ablation therapy. The aim of this study is to analyze the relationship between the pan-immune inflammation value (PIV), systemic immune inflammation index (SII), and system inflammation response index (SIRI) and the prolonged hospital stay of patients after microwave ablation. Methods: 1288 patients who underwent ultrasound-guided microwave ablation for thyroid nodules from October 2017 to March 2024 were retrospectively analyzed. The patients were divided into prolonged hospital stay group (hospital stay >1 day) and non-prolonged hospital stay group (1 day). Receiver operating characteristic (ROC) curve analysis was performed to assess the diagnostic efficacy of PIV, SII and SIRI in predicting prolonged hospital stay. Logistic regression analysis was applied to examine the relationship of PIV, SII, SIRI with prolonged hospital stay. Results: = 0.044) were significantly associated with prolonged hospital stay. Conclusions: PIV and SIRI are associated with the prolonged hospital stay of thyroid nodule patients undergoing ultrasound-guided microwave ablation, both aged ≤55 years and > 55 years.