The experiences of balloon-expandable stent in symptomatic stenosis of middle cerebral artery.
BACKGROUND
Stent placement for middle cerebral artery (MCA) stenosis remains a technical and clinical challenge. Our purpose was to assess the safety and feasibility of balloon-expandable stent (BES) for patients with symptomatic M1 stenosis of MCA, and to introduce our experience during the procedure.


METHODS
In the study, we analyzed retrospectively 37 patients with M1 stenosis of the MCA ranged from 70 to 90 % in diameter reduction and refractory to medical therapy between January 2012 and January 2015. All the patients underwent angioplasty and stenting with BES, and followed up continuously.


RESULTS
Thirty-five out of 37 patients were successfully followed up and available until now. The technical successful rate was 100 % for all the lesions. The complication rate was 0 during the procedure. Stroke occurred to one patient at 4th day after the procedure. There were two patients experiencing slight stroke after 8 months. Two patients were found re-stenosis >50 % without any symptom. The stroke rate of 12 months was 8.57 % (3/35).


CONCLUSIONS
Angioplasty associated with BES appears to be safe and feasible for the patients with symptomatic M1 stenosis of MCA. Our experiences about the BES may be valuable for decreasing the complication. However, further study is needed.
The Cerebrovascular Disease Center, The Third Hospital of Xingtai, No. 108, Steel Road (North), Qiaoxi District, Xingtai City, 054000 Hebei Province China.
Lingtao
L
Tang
The Cerebrovascular Disease Center, The Third Hospital of Xingtai, No. 108, Steel Road (North), Qiaoxi District, Xingtai City, 054000 Hebei Province China.
Pengfei
P
Hu
The Cerebrovascular Disease Center, The Third Hospital of Xingtai, No. 108, Steel Road (North), Qiaoxi District, Xingtai City, 054000 Hebei Province China.
Yalin
Y
Liu
The Cerebrovascular Disease Center, The Third Hospital of Xingtai, No. 108, Steel Road (North), Qiaoxi District, Xingtai City, 054000 Hebei Province China.
Kunxi
K
Zhang
The Cerebrovascular Disease Center, The Third Hospital of Xingtai, No. 108, Steel Road (North), Qiaoxi District, Xingtai City, 054000 Hebei Province China.
Yun
Y
Wang
The Cerebrovascular Disease Center, The Third Hospital of Xingtai, No. 108, Steel Road (North), Qiaoxi District, Xingtai City, 054000 Hebei Province China.
Dong
D
Qi
The Cerebrovascular Disease Center, The Third Hospital of Xingtai, No. 108, Steel Road (North), Qiaoxi District, Xingtai City, 054000 Hebei Province China.
Zhongshuang
Z
Xia
The Cerebrovascular Disease Center, The Third Hospital of Xingtai, No. 108, Steel Road (North), Qiaoxi District, Xingtai City, 054000 Hebei Province China.
Shanshan
S
Qi
The Cerebrovascular Disease Center, The Third Hospital of Xingtai, No. 108, Steel Road (North), Qiaoxi District, Xingtai City, 054000 Hebei Province China.
Suxia
S
Zhang
The Cerebrovascular Disease Center, The Third Hospital of Xingtai, No. 108, Steel Road (North), Qiaoxi District, Xingtai City, 054000 Hebei Province China.
Hongmei
H
Zhang
The Cerebrovascular Disease Center, The Third Hospital of Xingtai, No. 108, Steel Road (North), Qiaoxi District, Xingtai City, 054000 Hebei Province China.
Weiyue
W
Li
The Cerebrovascular Disease Center, The Third Hospital of Xingtai, No. 108, Steel Road (North), Qiaoxi District, Xingtai City, 054000 Hebei Province China.
Bogang
B
Zhang
The Cerebrovascular Disease Center, The Third Hospital of Xingtai, No. 108, Steel Road (North), Qiaoxi District, Xingtai City, 054000 Hebei Province China.
Xingdan
X
Yang
The Cerebrovascular Disease Center, The Third Hospital of Xingtai, No. 108, Steel Road (North), Qiaoxi District, Xingtai City, 054000 Hebei Province China.
Yingyi
Y
Li
Balloon-expandable stent; Middle cerebral artery; Stenosis