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Identification of Key Risk Factors for Rupture in Small Intracranial Aneurysms: A Multicenter Study

医学 钥匙(锁) 鉴定(生物学) 重症监护医学 放射科 生态学 生物 植物
作者
Holley Long,Wenqiang Che,Chao‐Hsun Yang,Yong Liao,Jiamin Wu,Chuan Chen,Xiangyu Wang,Jun Wen
出处
期刊:World Neurosurgery [Elsevier BV]
卷期号:194: 123552-123552
标识
DOI:10.1016/j.wneu.2024.12.011
摘要

Predicting rupture risk in small intracranial aneurysms (IAs) < 5 mm is crucial for guiding clinical decisions. This study aims to identify key clinical and morphological risk factors associated with rupture in small IAs, providing better insight for decision-making. A retrospective analysis was performed on patients with small IAs from one center, with external validation data from another center. Logistic regression identified significant risk factors for aneurysm rupture, which were incorporated into a predictive model. The model's performance was evaluated using the area under the receiver operating characteristic curve, calibration plots, and the Hosmer-Lemeshow goodness-of-fit test. Clinical utility was assessed via decision curve analysis. The training cohort consisted of 226 patients (ruptured, n = 181; unruptured, n = 92), while 136 patients (ruptured, n = 100; unruptured, n = 59) were used for external validation. Significant risk factors included hypertension, smoking, anterior communicating artery aneurysms, daughter sacs, aspect ratio, and size ratio. The model demonstrated strong predictive ability with area under the curves of 0.969 and 0.967 in the training and validation cohorts, respectively. Calibration plots indicated a good agreement between predicted and observed rupture risks, while decision curve analysis highlighted the model's clinical relevance. This study identifies and validates critical risk factors associated with small IA rupture and presents a clinically useful, high-accuracy predictive model to aid in individualized patient management.
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