Outcome of Trapping With and Without Bypass for Unruptured Paraclinoid Aneurysm

Objective: We evaluated the result of the trapping with or without EC-IC bypass for unruptured paraclinoid aneurysm. Methods : From June 2003 to March 2007, 14 cases of unruptured paraclinoid aneurysms were treated by trapping with or without EC-IC bypass at the National Cardio-Vascular Center. The age ranged from 40 to 69 years, which consisted of 2 men and 12 women. Eight cases was asymptomatic aneurysm, 6 cases was symptomatic aneurysm, which is visual disturbance and worsening of visual acuity. Results : All patients was angiographically cured. Three cases had newly symptom of visual function in asympto,matic patients. In symptomatic patients, one case is improved, and two cases are unchanged, three cases was worsened. Using the modified Rankin Scale (mRS), overall clinical outcomes were grade 0 : 6 cases, grade 1 : 8 cases. Conclusion : Trapping with or without EC-IC bypass can lead to good outcomes in the treatment for paraclinoid aneurysms. There is a problem about the protection of visual function