Observational studyEuropean journal of trauma and emergency surgery : official publication of the European Trauma Society2025
Pulmonary contusion volume and radiomics as predictors of early-onset pneumonia in trauma patients, a retrospective single-centre study.
Observational study in European journal of trauma and emergency surgery : official publication of the European Trauma Society, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06750822 (Accuracy of Automatic Contusion Volume Scanning for Predicting the Incidence of Pneumonia in Patients With Thoracic Trauma), which is not on this map. Not yet cited in PubMed.
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Accuracy of Automatic Contusion Volume Scanning for Predicting the Incidence of Pneumonia in Patients With Thoracic Trauma
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Authors and funding
13 authors.
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Abstract
purposePulmonary contusion is a common injury in thoracic trauma patients and a significant risk factor for respiratory complications such as pneumonia. This study aimed to investigate the role of pulmonary contusion volume and radiomics as predictors of pneumonia within 7 days of trauma and the degree of overlap between contused lung segments and those where pneumonia subsequently developed.
methodsThis retrospective observational study included all consecutive adult trauma patients admitted to the ED with a whole-body CT scan available within 6 h from admission. The primary outcome was the occurrence of early-onset pneumonia (EOP). Data were extracted from clinical records and CT scan images were analysed for volumetric and radiomic analysis. ROC curves were built, and robust Poisson regression and extreme gradient boosting models were developed to evaluate the most influential clinical and radiologic variables.
resultsAmong 486 patients included, 79 (16.3%) developed early-onset pneumonia. Volumetric analysis showed higher contused lung volumes and proportions in pneumonia patients. The contusion percentage had the highest AUC (0.644) for predicting pneumonia over T-AIS and AAST lung injury scales. Multivariable analysis identified H-AIS, contusion proportion, and P/F ratio as significant predictors, with a model AUC of 0.710. Radiomic analysis improved prediction accuracy, with an extreme gradient boosting model showing an estimated out-of-sample AUC of 0.790.
conclusionPulmonary contusion volume is an interesting predictor of early-onset pneumonia in thoracic trauma patients. Advanced radiology techniques, including radiomics, could enhance prediction accuracy and aid in early risk stratification, potentially improving patient outcomes.
trial registrationNCT06750822, retrospectively registered.
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