Causes of early rebleeding after coil embolization of ruptured cerebral aneurysms

Clinical Neurology and Neurosurgery
Sung-Tae KimYoung Gyun Jeong

Abstract

Early rebleeding after coil embolization of a ruptured cerebral aneurysm is rare but may cause severe disability or death. We present a case series of early rebleeding after coil embolization of ruptured cerebral aneurysms and investigate the incidence, clinical outcome and possible mechanism through retrospective analysis of angiographic and surgical findings. This study included 347 consecutive patients who had undergone successful coil embolization of 347 ruptured cerebral saccular aneurysms. Clinical and angiographic data and findings from emergent surgery were analyzed retrospectively. Early rebleeding occurred in eight aneurysms (2.3%) and was especially frequent among anterior communicating artery lesions (6 out of 122, 4.9%). The other two events involved posterior communication artery lesions. The maximum diameter of the aneurysms that developed early rebleeding was 4.89 ± 0.65 mm, ranging from 3.9 to 5.7 mm. In seven out of eight patients, the immediate radiologically determined occlusion status was a residual neck, and the remaining patient had a residual sac. The coil packing density was between 21% and 34%. Six cases of rebleeding were detected within 48 h, 1 case was detected on the 5th day, and 1 case was detecte...Continue Reading

Citations

Jan 26, 2020·Journal of Neurointerventional Surgery·Hirotoshi ImamuraUNKNOWN JR-NET3 Study Group
Sep 25, 2020·Journal of Cerebrovascular and Endovascular Neurosurgery·Juwhan LeeYoung Gyun Jeong
Sep 30, 2020·Journal of Stroke and Cerebrovascular Diseases : the Official Journal of National Stroke Association·Naoki KatoYuichi Murayama

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