Rupture of symptomatic blood blister-like aneurysm of the internal carotid artery: clinical experience and management outcome

BBAs of the supraclinoid ICA have special neuroradiological and clinicopathological characteristics. Direct clipping or endovascular coil embolization along may not be sufficient and sometimes have undesirable results. ICA trapping or ligation including the lesion segment can be considered an alternative choice if the balloon occlusion test (BOT) is successful. However, if the patient does not tolerate the BOT, EC-IC bypass surgery with ICA ligation or trapping is another option.