Abstract: Objective To explore the clinical diagnostic value of peripheral blood procalcitonin(PCT) and neutrophil lymphocyte ratio(NLR) levels in elderly patients with strangulated inguinal hernia.Methods The clinical data of 112 elderly patients with acute incarcerated inguinal hernia from January 2019 to December 2022 were retrospectively analyzed,and were divided into strangulated group and non-strangulated group according to the intraoperative exploration.Multivariate Logistic regression analysis of risk factors of strangulated inguinal hernia in the elderly.Evaluation of PCT and NLR levels in peripheral blood by ROC curve in the clinical diagnosis of strangulated inguinal hernia in the elderly.Results The NLR and PCT in the strangulation group[(4.54±1.67) and (6.74±2.42)ng/ml] were higher than those in the non-strangulation group[(3.78±1.48) and (4.97±2.53)ng/ml] (P<0.05).Multivariate Logistic regression analysis showed that preoperative NLR and PCT levels were risk factors for strangulated inguinal hernia in the elderly (P<0.05).Both NLR and PCT have high clinical diagnostic value for strangulated inguinal hernia in the elderly (AUC＞0.7),and the combined detection of NLR and PCT can improve the diagnostic efficiency (AUC=0.792).Conclusion PCT and NLR levels in peripheral blood have high clinical diagnostic value for strangulated inguinal hernia in the elderly,and combined detection of NLR and PCT can improve the diagnostic efficiency.

Key words: procalcitonin；neutrophil lymphocyte ratio；elderly；strangulated inguinal hernia