Prognostic risk factors and a survival prediction model for immune checkpoint inhibitor related myocarditis in patients with lung cancer: a multicenter study.
Xiaoyun Cheng, Lingzhi Long, Yuzhang Li, Xia Gan, Pan Yu, Xiangyu Zhang, Guoliang Jiang, Tingting Yao, Mao Jiang, Wei Xie, Jie Meng
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引用次数: 0
Abstract
Immune checkpoint inhibitor (ICI)-related myocarditis is a rare but fatal immune-related adverse event in lung cancer patients, with limited multivariate prognostic analysis. This study aimed to identify risk factors for severity, major adverse cardiac events (MACE) and survival time, and develop a survival prediction model. Data from 70 lung cancer patients with ICI-related myocarditis (training set) and 40 patients (validation set) were analyzed, with ≥ 1.5 years of follow-up. Cox regression was employed to determine factors associated with survival time, and Logistic regression models identified risk factors for severe myocarditis and MACE. Several factors were independently associated with all-cause death: protective factors included combined radiotherapy (HR 0.12, 95%CI: 0.01-0.98, p = 0.047) and longer ICI treatment duration (≥ 132 days, HR 0.93, 95%CI: 0.91-0.98, p = 0.013); risk factors included low-dose glucocorticoid use in patients with severe myocarditis (HR 3.92, 95%CI: 1.16-13.2, p = 0.028). A nomogram model constructed based on these three variables yielded area under the time-ROC curves of 0.832, 0.835, and 0.924 for 0.5-, 1-, and 1.5-year survival in the training set, and 0.821, 0.806, and 0.789 in the validation set, respectively. It also demonstrated good discriminative ability and clinical utility for predicting survival in lung cancer patients with ICI-related myocarditis, as this study established a validated nomogram model that may aid survival prediction in this population. Additionally, we analyzed the risk factors for severe ICI related myocarditis and 90-day MACE. We found that the use of angiogenesis inhibitors was an independent risk factor for severe myocarditis (OR 18.72, 95% CI: 2.52-428.27, p = 0.02); a history of coronary artery disease (OR 10.54, 95% CI: 1.62-210.10, p = 0.037) was an independent risk factor for 90-day MACE; and left ventricular ejection fraction (OR 0.94, 95% CI: 0.88-0.99, p = 0.026) was an independent protective factor against 90-day MACE.
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