Inadvertent Self-Detachment of Solitaire AB Stent during the Mechanical Thrombectomy for Recanalization of Acute Ischemic Stroke: Lessons Learned from the Removal of Stent via Surgical Embolectomy.
10.3340/jkns.2013.53.6.360
- Author:
Dong Hun KANG
1
;
Jaechan PARK
;
Yang Ha HWANG
;
Yong Sun KIM
Author Information
1. Department of Neurosurgery, Cardiocerebrovascular Center, Kyungpook National University Hospital, Daegu, Korea. knuhnr@hotmail.com
- Publication Type:Case Report
- Keywords:
CT scan;
Thrombectomy;
Self-detachment;
Stent;
Stroke
- MeSH:
Angiography;
Carotid Artery, Internal;
Diffusion;
Embolectomy;
Humans;
Infarction;
Retrospective Studies;
Stents;
Stroke;
Thrombectomy
- From:Journal of Korean Neurosurgical Society
2013;53(6):360-363
- CountryRepublic of Korea
- Language:English
-
Abstract:
We recently experienced self-detachment of the Solitaire stent during mechanical thrombectomy of acute ischemic stroke. Then, we tried to remove the detached stent and to recanalize the occlusion, but failed with endovascular means. The following diffusion weighted image MRI revealed no significant increase in infarction size, therefore, we performed surgical removal of the stent to rescue the patient and to elucidate the reason why the self-detachment occurred. Based upon the operative findings, the stent grabbed the main thrombi but inadvertently detached at a severely tortuous, acutely angled, and circumferentially calcified segment of the internal carotid artery. Postoperative angiography demonstrated complete recanalization of the internal carotid artery. The patient's neurological deficits gradually improved, and the modified Rankin scale score was 2 at three months after surgery. In the retrospective case review, bone window images of the baseline computed tomography (CT) scan corresponded to the operative findings. According to this finding, we hypothesized that bone window images of a baseline CT scan can play a role in terms of anticipating difficult stent retrieval before the procedure.
