ArticleTranslational neuroscience2025
A novel dynamic nomogram based on clinical features and laboratory indicators for diagnosis of post-neurosurgery intracranial infection.
Article in Translational neuroscience, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Objective: Intracranial infection is a serious complication after neurosurgery. However, the early diagnosis of post-neurosurgical intracranial infection (PNICI) remains challenging. The purpose of this study was to compare clinical characteristics and common laboratory indicators in patients with and without intracranial infections after neurosurgery and construct a diagnostic model of PNICI and assess its diagnostic efficacy. Methods: A total of 623 patients who underwent neurosurgery from January 2018 to October 2021 were enrolled and divided into a training set and a validation set. SPSS 22.0 software was used to compare the differences in basic information and laboratory examination results between the two groups to screen out valuable indicators. Subsequently, a nomogram for the diagnosis of PNICI was established. Then, the receiver operating characteristic (ROC) curve, calibration diagram, and decision curve analysis (DCA) were performed to evaluate the discriminative ability, consistency, and clinical usefulness of the nomogram. Results: The diagnostic model of PNICI consisted of seven variables: meningeal irritation, fever, postoperative drainage, cerebrospinal fluid (CSF) white blood cells, CSF chlorine, the CSF/blood glucose ratio, and blood neutrophil percentage. The model achieved an area under the ROC curve of 0.958 in the training set and 0.966 in the validation set. At the optimal cutoff of 0.397, the training set demonstrated 90.4% sensitivity and 90.8% specificity. The calibration curves and DCA curves of the nomogram demonstrated that the model exhibited good goodness of fit and showed a net benefit from its use. Conclusions: We developed an easily applicable nomogram using routinely available indicators. This tool enables early risk stratification for PNICI, facilitating timely interventions that may reduce infection-related complications. However, multicenter prospective validation data are required to further confirm the clinical utility.
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