[1]Department of Neurosurgery Beijing Tiantan Hospital Capital Medical University Beijing 100050 China;
[2]China National Clinical Research Center for Neurological Diseases Beijing China;
[3]Center of Stroke Beijing Institute for Brain Disorders Beijing China;
[4]Beijing Key Laboratory of Translational Medicine for Cerebrovascular Diseases Beijing People''''s Republic of China;
[5]Department of Neurosurgery Xuanwu Hospital Capital Medical University Beijing China;
Coiled aneurysms; Recurrent aneurysms; Endovascular coiling; Microsurgical clipping;