The association between procalcitonin and acute kidney injury in patients stung by wasps

Front Physiol. 2023 Aug 28:14:1199063. doi: 10.3389/fphys.2023.1199063. eCollection 2023.

Abstract

Introduction: The aim of this study was to investigate the status of serum procalcitonin (PCT) in patients stung by wasps and evaluate the association between PCT levels and acute kidney injury (AKI). Methods: Patients stung by wasps admitted to two tertiary hospitals between January 2017 and December 2020 were screened for enrollment. We evaluated serum PCT levels on admission in patients stung by wasps. The patients were divided into an AKI group and a non-AKI group. A logistic regression model was used to analyze the association between PCT status and AKI. The performance of PCT concentrations in predicting the occurrence of AKI was evaluated by the area under the receiver operating characteristic curve (AUROC). Results: A total of 138 patients were enrolled, and 66 patients suffered AKI. PCT levels were elevated in 78.99% of patients stung by wasps. Nearly half of the patients (47.83%) developed AKI. PCT levels were correlated with creatinine levels on admission (r = 0.787, 95% CI: 0.713-0.844). PCT levels in patients with AKI were higher than those in patients without AKI (p < 0.001). After adjustment for covariates, PCT levels on admission were independently associated with AKI (OR: 1.575, 95% CI: 1.071-2.317, p = 0.021). The AUROC of PCT levels on admission was 0.837 (95% CI, 0.771-0.902, p < 0.001). A PCT level of 0.57 μg/L was the cutoff for maximizing the Youden index; the specificity was 79.45%, and the sensitivity was 73.43%. Conclusion: Serum PCT levels may be a potential biomarker of AKI in patients stung by wasps.

Keywords: acute kidney injury; association; prediction; procalcitonin; wasp sting.

Grants and funding

This research was funded by the National Natural Science Foundation of China (grant number 82273556), the Key Project in the Science & Technology Program of Sichuan Province (grant numbers 2022YFS0233, 2022YFS0225 and 2022NSFSC1480), the Project of ‘0 to 1’ of Sichuan University (grant number 2022SCUH0033), the Med-X Center for Informatics Funding Project (YGJC004), the 1·3·5 Project for Disciplines of Excellence-Clinical Research Incubation Project of West China Hospital of Sichuan University (grant numbers 2023HXFH004, 2020HXFH048 and 2019HXFH056), and the 1·3·5 Project for Disciplines of Excellence-Clinical Research Interdisciplinary Innovation Project of West China Hospital of Sichuan University (ZYJC21060).