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Abstract - Original Article

J Cerebrovasc Endovasc Neurosurg. 2019 21(2): 86-93
The Journal of Cerebrovascular and Endovascular Neurosurgery
Neurologic complications in patients with carotid artery stenting
Na Young Kim, Jong Wook Choi, Kum Whang, Sung Min Cho, Youn Moo Koo, Jong Yeon Kim
Department of Neurosurgery, Yonsei University Wonju College of Medicine, Wonju Severance Christian Hospital, Wonju, Korea

Objective : Carotid artery stenting is helpful in patients with carotid artery stenosis and is a common method of treatment. However, data on the neurological consequences that might arise from, especially Asian patients after CAS is not enough. The purpose of this study was to investigate the outcome and prognostic factors affecting CAS patients. Methods : From January 2013 to June 2018 it was enrolled 97 patients who underwent CAS with severe carotid artery stenosis in a single institution. We retrospectively reviewed neurologic complications such as restenosis, ipsilateral or contralateral stroke, and hyperperfusion during the 6-month follow-up period. Results : There were no complication occured during the procedure in all 97 patients. Neurologic complications occurred in 30 patients (30.9%) after the procedure, and ipsilateral stroke 6 (6.2%), contralateral stroke 9 (9.4%), restenosis 2 (2.1%) and hyperperfusion 13 respectively. One of them had died (1.0%), of which the rest were discharged after symptoms improve. On univariate analysis, DM and pre-op NIHSS score was associated with the risk of CAS complication, exclusively. On the binary logistic regression for risk factors, DM (OR 0.144, 95% CI [0.029-0.718]), history of radiotheraphy (OR 36.103, 95% CI [1.009-1291.789]) and preoperative NIHSS (OR 1.266, 95% CI [1.059-1.513]) showed independent risk factors associated with post procedural neurological complications, statistically. Conclusion : Carotid artery stenting is a relatively safe and reliable long-term outcome for patients with carotid artery stenosis. However, careful observation should be taken after procedure immediately for any possible complications.
Key words : Carotid Stenosis, Stents, Endovascular Procedures, Postoperative Complications

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