Construction and Clinical Significance of a Nomogram Prediction Model for Poor Prognosis Risk in Emergency Patients with ACI Complicated by Severe Enlarged Perivascular Spaces
HAN Mingming, TANG Xiuli, HAN Mi
The Affiliated Hospital of Yangzhou University, Jiangsu Yangzhou 225001, China
Abstract:Objective: To analyze the influencing factors for the poor prognosis in emergency patients with acute cerebral infarction (ACI) complicated by severe enlarged perivascular spaces (EPVSs), construct a risk nomogram prediction model, and analyze its clinical guiding significance. Methods: A total of 300 emergency patients with severe EPVSs ACI admitted from January 2021 to November 2024 were prospectively selected as the research objects and divided into a modeling set (n=210) and a validation set (n=90) at a ratio of 7∶3. According to the modified Rankin scale scores, the modeling set was further divided into a good prognosis group (0~2 points, n=127) and a poor prognosis group (3~6 points, n=83). The basic admission information, clinical medical history and other general data of ACI patients were collected, and relevant laboratory indicators were detected. Multivariate Logistic regression was used to analyze the influencing factors for the poor prognosis in emergency patients with ACI complicated with severe EPVSs. Then the rms package was applied to construct a nomogram prediction model. The receiver operating characteristic (ROC) curve was used to evaluate the predictive efficacy of the model; the calibration curve was used to evaluate the consistency between the predicted probabilitiy of the model and the observed results; the decision curve was used to evaluate the net benefit of the model. Results: The poor prognosis rates in the modeling set and validation set were 39.52% and 35.56%, respectively. In the modeling set, the proportion of patients aged ≥65 years with infarctions in key cerebral regions and complicated with hypertension and leukoaraiosis, as well as the scores of the National Institutes of Health Stroke Scale (NIHSS),infarct size,the quantity of enlarged perivascular spaces (EPVSs), and levels of high-sensitivity C-reactive protein (hs-CRP) were all significantly higher in the poor prognosis group than those in the good prognosis group(all P<0.05). Age ≥65 years, hypertension (yes), increased NIHSS score, larger infarct size, and greater EPVSs quantity were independent risk factors for poor prognosis in emergency patients with acute cerebral infarction (ACI),complicated with severe EPVSs (P<0.05). A nomogram prediction model was constructed based on the results of multivariate Logistic regression analysis. The area under the ROC curve (AUC) of the modeling set and validation set was 0.810 (95%CI: 0.750~0.860) and 0.802 (95%CI: 0.741~0.853), respectively. The predicted curves in both sets showed good fit with the actual curves. The threshold probabilities in decision curve analysis were all greater than 0. Conclusion: Age, hypertension, NIHSS score, infarct area, and EPVSs quantity are independent influencing factors for the poor prognosis in emergency patients with ACI complicated with severe EPVSs. The nomogram prediction model constructed based on these results has high predictive efficacy which provides an effective reference for clinical prognosis assessment and personalized treatment.
韩明明, 唐秀丽, 韩咪. 急诊重度EPVSs急性脑梗死患者预后不良风险列线图预测模型的构建及临床意义[J]. 河北医学, 2026, 32(1): 105-112.
HAN Mingming, TANG Xiuli, HAN Mi. Construction and Clinical Significance of a Nomogram Prediction Model for Poor Prognosis Risk in Emergency Patients with ACI Complicated by Severe Enlarged Perivascular Spaces. HeBei Med, 2026, 32(1): 105-112.
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