Brit J Hosp Med
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Aims/Background Given the strong association between relative wall thickness (RWT) and cardiovascular dysfunction, this study aims to explore RWT as a novel cardiovascular indicator to predict the risk of acute kidney injury (AKI) after lung cancer surgery and guide clinical interventions. Methods This study retrospectively analyzed 170 patients who underwent video-assisted thoracoscopic surgery (VATS) for lung cancer in Nanjing First Hospital, China, between January 2022 and December 2023. Patients were divided into AKI group (n = 52) and non-AKI group (n = 118) based on the occurrence of AKI. ⋯ ROC analysis revealed that the area under the predicted curve for RWT was 0.864, and the standard error was 0.030 (95% confidence interval (CI): 0.805~0.923), with a Youden index of 0.55. At this time, the sensitivity was 87.29% and the specificity was 67.31%. Conclusion RWT shows excellent predictive value for postoperative AKI in patients undergoing VATS for lung cancer.