Research On Risk Factors For Aneurysms Rupture

Objective:This study was undertaken to analyze the risk factors for aneurysm rupture, in order to predict the risk of aneurysm rupture,especially those with diameter less than 10mm.Methods:52 patients with incidental subarachnoid hemorrhage and multiple intracranial aneurysms were involved.The parameters of the aneurysms,location and their morphological features were acquired on the Three-dimensional digital subtract angiogram films.By comparing the difference between ruptured and unruptured aneurysms,each patient in effect served as his or her own control.Each ruptured aneurysm was confirmed by a conjoined way.Results:There were 52 ruptured and 72 unruptured aneurysms.The mean maximum diameter was 8.5mm for ruptured aneurysms,compared with 8.0 for unruptured ones. Aneurysms with maximum diameter＜10mm account for 79.8%.The mean depth was 7.5mm for ruptured aneurysms,while was 5.7mm for unruptured ones.The mean ratio of depth and neck width was 2.27 for ruptured aneurysms,while was 1.69 for unruptured ones.Found an additional loculation in 53.8%of ruptured aneurysms,as opposed to 11.1%of unruptured ones.Conclusion:Maximum diameter,depth,ratio of depth and neck width and loculation are reliable variables for predicting aneurysm rupture.This difference was statistically significant(P＜0.05).