Objective To investigate the risk factors of re-rupture of ruptured aneurysms with intracranial diameter≤5 mm during endovascular treatment.Methods Retrospective analysis was performed on the clinical data of 113 patients with ruptured intracranial aneurysms with diameter≤5mm who received endovascular treatment in our hospital from July 2019 to December 2022.The group was divided into two groups according to whether the operation was reruptured or not.Multivariate Logistic regression analysis was used to examine the risk factors of re-rupture of ruptured aneurysms with intracranial diameter≤5 mm during endovascular treatment.Results Among 113 patients with ruptured aneurysms with intracranial diameter≤5 mm who underwent endovascular therapy,according to the results of DSA,11 cases(9.73%)were re-ruptured during surgery,and 102(90.27%)cases were not re-ruptured.Hypertension(OR=3.714,95%CI:1.331-6.285),SBO(OR=4.052,95%CI:1.594-010.602)and severe ACAAS(OR=3.193,95%CI:1.158-016.521)were independent risk factors for re-rupture of ruptured aneurysms with intracranial diameter≤5 mm.ROC curve analysis results showed that the area under the curve of the early warning score system in predicting re-rupture of ruptured intracranial aneurysms with diameter≤5 mm was 0.731(95%CI:0.705-0.906),and the optimal cut-off value was 6.0 points.The sensitivity,specificity and Youden index for predicting postoperative recurrence were 0.902,0.715 and 0.617,respectively.Conclusion Hypertension,SBO and severe ACAAS can increase the risk of intraoperative rerupture in patients with ruptured intracranial aneurysm with diameter≤5 mm undergoing endovascular therapy.The risk prediction score system based on the above risk factors can provide a basis for clinical treatment and short-term prognosis prediction.
Small intracranial aneurysmEndovascular therapyRe-ruptureRisk factor
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