RÉSUMÉ
To investigate the clinical correlation between transverse sinus classification and variation and aneurysm formation and rupture and to determine the risk factors of intracranial aneurysm rupture. Methods A retrospective data analysis was conducted on a total of 345 cases of intracranial aneurysms from January to December 2018. Clinical characteristics were compared between ruptured aneurysm group (RAG, n=230) and unruptured aneurysms group (URAG, n=115). Logistic regression analysis was performed to analyze the anatomy of venous sinus and clinical features including smoking history, hypertension, diabetes, location and size of the aneurysm in patients with intracranial aneurysm rupture. Results There were significant differences in had statistical significance with the patients' drinking history, smoking history, hypertension, diabetes, location and size of the aneurysm, as well as the dominant venous sinus on the same side as the aneurysm between rupture of intracranial aneurysm group and unruptured aneurysms group (P＜0.05). Multivariate logistic regression analysis suggested that diabetes (OR=10.567), anterior communication (OR=2.214), posterior communication (OR=2.932), small aneurysms (OR=3.841), dominant venous sinus on the same side as the aneurysm (OR=1.736) were independent risk factors for rupture of the unruptured aneurysm. In addition, the dominant side of transverse sinus were more likely to form intracranial aneurysms (P＜0.001). Conclusion The predisposing factors for rupture of intracranial aneurysms are anterior communication, posterior communication, small aneurysms and dominant lateral venous sinuses on the same side as aneurysms. Ipsilateral aneurysms are more likely to form in patients with dominant venous sinuses and can be used to accurately predict aneurysm rupture.