Relationship between cognition disorders and Claassen scale in patients with aneurysmal subarachnoid hemorrhage after endovascular treatment

Abstract

Objective To study the relationship between Claassen scale,age of patients,anatomical location of aneurysms and the cognitive disorders in patients with aneurysmal subarachnoid hemorrhage (aSAH) after endovascular treatment.Methods 40 patients underwent endovascular coiling for aSAH were studied.The preoperative and postoperative course in all patients was uneventful.CT,cerebral angiography (CAG),neuropsychological examination (Wechsler adult intelligence scale,WAIS - R) were used for examination.Results After logistic procedure analysis,it was found that Claassen Scale was a risk factor for cognition disorders ( P ＜0.01 ).The level of Claassen Scale was negatively correlated with the score of total intelligence quotient ( r =- 0.398,P ＜ 0.01 ).According to anatomical location of aneurysms,there was no significantly statistical difference between the anterior communicating aneurysm (Acoa) group and non- Acoa group in total intelligence quotient,verbal intelligence quotient and performance intelligence quotient( P ＞0.05 ).Conclusions Despite good outcomes after aSAH,cognition disorders in patients are still common,suggesting that the common impairments of brain after treatment of ruptured aneurysms may be due to SAH itself.Claassen Scale may account for predictive value for cognition disorders. Key words: Endovascular procedures;  Subarachnoid hemorrhage;  Intracranial aneurysm; Cognition disorders;  Claassen scale