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Nguyen VN, Motiwala M, Parikh K, Miller LE, Barats M, Nickele CM, Inoa V, Elijovich L, Goyal N, Hoit DA, Arthur AS, Morcos JJ, Khan NR. Extracranial-Intracranial Cerebral Revascularization for Atherosclerotic Vessel Occlusion: An Updated Systematic Review of the Literature. World Neurosurg 2023; 173:199-207.e8. [PMID: 36758795 DOI: 10.1016/j.wneu.2023.02.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/31/2023] [Accepted: 02/01/2023] [Indexed: 02/10/2023]
Abstract
BACKGROUND Atherosclerotic steno-occlusive cerebrovascular disease includes extracranial carotid occlusive and intracranial atherosclerotic disease. Despite the negative findings in Carotid Occlusion Surgery Study (COSS), many large centers continue to report favorable results for revascularization surgery in select groups of patients. The aim of our study was to perform an updated systematic review to investigate the role of revascularization surgery for atherosclerotic steno-occlusive patients in the modern era. METHODS Five independent reviewers performed Preferred Reporting Items for Systematic Reviews and Meta-Analyses-guided literature searches in October 2022 to identify articles reporting clinical outcomes in adult patients undergoing bypass for atherosclerotic steno-occlusive disease. Primary endpoints used were perioperative and long-term ischemic strokes, intracerebral hemorrhage, bypass patency, and favorable clinical outcomes. Study quality was evaluated with Newcastle-Ottawa, JADAD, and the Oxford Center for Evidence-Based Medicine scales. RESULTS A total of 6709 articles were identified in the initial search. Of these articles, 50 met the inclusion criteria and were included in the systematic review. A notable increase in the proportion of articles published over the past 10 years was observed. There were 6046 total patients with 4447 bypasses performed over the period from 1978 to 2022. The average length of follow-up was 2.75 ± 2.71 years. The average Newcastle-Ottawa was 6.23 out of 9 stars. There was a significant difference in perioperative stroke (odds ratio [OR], 0.65 [0.48-0.87]; P = 0.004), long-term ischemia (OR, 0.32 [0.23-0.44]; P < 0.0001), overall ischemia (OR, 0.36 [0.28-0.44]; P < 0.0001), and favorable outcomes (OR, 3.63 [2.84-4.64]; P < 0.0001) when comparing pre-COSS to post-COSS time frames in favor of post-COSS. CONCLUSIONS Based on a systematic review of 50 articles, the existing literature indicates that long-term stroke rates and favorable outcomes for surgical revascularization for steno-occlusive disease have improved over time and are lower than previously reported. Improved patient selection, perioperative care, and surgical techniques may contribute to improved outcomes.
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Affiliation(s)
- Vincent N Nguyen
- University of Tennessee Health Sciences Center Department of Neurosurgery, Memphis, Tennessee, USA
| | - Mustafa Motiwala
- University of Tennessee Health Sciences Center Department of Neurosurgery, Memphis, Tennessee, USA
| | - Kara Parikh
- University of Tennessee Health Sciences Center Department of Neurosurgery, Memphis, Tennessee, USA
| | - L Erin Miller
- University of Tennessee Health Sciences Center Department of Neurosurgery, Memphis, Tennessee, USA
| | - Michael Barats
- University of Tennessee Health Sciences Center Department of Neurosurgery, Memphis, Tennessee, USA
| | - Christopher M Nickele
- University of Tennessee Health Sciences Center Department of Neurosurgery, Memphis, Tennessee, USA; Department of Neurosurgery, Semmes Murphey Clinic, Memphis, Tennessee, USA
| | - Violiza Inoa
- University of Tennessee Health Sciences Center Department of Neurosurgery, Memphis, Tennessee, USA; University of Tennessee Health Sciences Center Department of Neurology, Memphis, Tennessee, USA; Department of Neurosurgery, Semmes Murphey Clinic, Memphis, Tennessee, USA
| | - Lucas Elijovich
- University of Tennessee Health Sciences Center Department of Neurosurgery, Memphis, Tennessee, USA; University of Tennessee Health Sciences Center Department of Neurology, Memphis, Tennessee, USA; Department of Neurosurgery, Semmes Murphey Clinic, Memphis, Tennessee, USA
| | - Nitin Goyal
- University of Tennessee Health Sciences Center Department of Neurosurgery, Memphis, Tennessee, USA; University of Tennessee Health Sciences Center Department of Neurology, Memphis, Tennessee, USA; Department of Neurosurgery, Semmes Murphey Clinic, Memphis, Tennessee, USA
| | - Daniel A Hoit
- University of Tennessee Health Sciences Center Department of Neurosurgery, Memphis, Tennessee, USA; Department of Neurosurgery, Semmes Murphey Clinic, Memphis, Tennessee, USA
| | - Adam S Arthur
- University of Tennessee Health Sciences Center Department of Neurosurgery, Memphis, Tennessee, USA; Department of Neurosurgery, Semmes Murphey Clinic, Memphis, Tennessee, USA
| | - Jacques J Morcos
- University of Miami Department of Neurosurgery, Miami, Florida, USA
| | - Nickalus R Khan
- University of Tennessee Health Sciences Center Department of Neurosurgery, Memphis, Tennessee, USA; Department of Neurosurgery, Semmes Murphey Clinic, Memphis, Tennessee, USA.
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Kim JH, Yoon W, Kim CK, Roh H, Bae HJ, Kwon TH, Suh SI, Oh K, Chong K. Efficacy and Safety of Timely Urgent Superficial Temporal Artery-to-Middle Cerebral Artery Bypass Surgery in Patients with Acute Ischemic Stroke: A Single-Institutional Prospective Study and a Pooled Analysis. Cerebrovasc Dis 2021; 50:34-45. [PMID: 33423028 DOI: 10.1159/000512106] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 10/03/2020] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Clinical outcome in patients with acute ischemic stroke (AIS) caused by large vessel occlusion (LVO) is not satisfactory if reperfusion treatment fails or is not tried. AIMS We aimed to assess the efficacy and safety of urgent superficial temporal-to-middle cerebral artery (STA-MCA) bypass surgery in selected patients. METHODS Patients who were diagnosed with LVO-induced AIS in the anterior circulation but had a failed intra-arterial thrombectomy (IAT) or were not tried due to IAT contraindications were prospectively enrolled. Timely urgent STA-MCA bypass surgery was performed if they showed perfusion-diffusion mismatch or symptom-diffusion mismatch in the acute phase of disease. Clinical and radiological data of these patients were assessed to demonstrate the safety and efficacy of urgent bypass procedures. A pooled analysis of published data on urgent bypass surgery in acute stroke patients was conducted and analyzed. RESULTS In 18 patients who underwent timely bypass, the National Institutes of Health Stroke Scale (NIHSS) score improved from 12.11 ± 4.84 to 9.89 ± 6.52, 1 week after surgery. Three-month and long-term (9.72 ± 5.00 months) favorable outcomes (modified Rankin Scale [mRS] scores 0-2) were achieved in 50 and 75% of the patients, respectively. The pooled analysis (117 patients from 10 articles, including ours) identified favorable mRS scores in 71.79% patients at 3 months. A significant NIHSS score improvement from 11.51 ± 4.89 to 7.59 ± 5.50 was observed after surgery with significance. Major complications occurred in 3 patients (2.6%, 3/117) without mortality. CONCLUSIONS Urgent STA-MCA bypass surgery can be regarded as a safe optional treatment to prevent cerebral infarct expansion and to improve clinical and radiological outcomes in highly selected patients.
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Affiliation(s)
- Jang Hun Kim
- Trauma Center, Armed Forces Capital Hospital, Gyeonggi-do, Republic of Korea
| | - Wonki Yoon
- Department of Neurosurgery, Guro Hospital, Korea University College of Medicine, Seoul, Republic of Korea,
| | - Chi Kyung Kim
- Department of Neurology, Guro Hospital, Korea University College of Medicine, Seoul, Republic of Korea
| | - Haewon Roh
- Department of Neurosurgery, Guro Hospital, Korea University College of Medicine, Seoul, Republic of Korea
| | - Hee Jin Bae
- Department of Neurosurgery, Guro Hospital, Korea University College of Medicine, Seoul, Republic of Korea
| | - Taek-Hyun Kwon
- Department of Neurosurgery, Guro Hospital, Korea University College of Medicine, Seoul, Republic of Korea
| | - Sang-Il Suh
- Department of Radiology, Guro Hospital, Korea University College of Medicine, Seoul, Republic of Korea
| | - Kyungmi Oh
- Department of Neurology, Guro Hospital, Korea University College of Medicine, Seoul, Republic of Korea
| | - Kyuha Chong
- Department of Neurosurgery, Guro Hospital, Korea University College of Medicine, Seoul, Republic of Korea
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Kang K, Gao F, Mo D, Yang M, Liu Y, Yang B, Chen X, Gu W, Ma G, Zhao X, Miao ZR, Ma N. Outcome of endovascular recanalization for intracranial in-stent restenosis. J Neurointerv Surg 2020; 12:1094-1098. [PMID: 32034104 DOI: 10.1136/neurintsurg-2019-015607] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 01/16/2020] [Accepted: 01/22/2020] [Indexed: 01/17/2023]
Abstract
BACKGROUND AND PURPOSE In-stent restenosis (ISR) is one of the long-term adverse outcomes of endovascular angioplasty and stenting for symptomatic intracranial arterial stenosis. In this study, we try to evaluate the safety and efficacy of endovascular treatment for intracranial ISR. METHODS We retrospectively collected patients with intracranial ISR who underwent endovascular treatment from June 2012 to August 2019 at a high-volume stroke center. Successful recanalization was defined as ≤30% residual stenosis. Stroke, myocardial infarction, and death after stenting within 30 days were used to evaluate periprocedural safety. Recurrent stroke in the territory of the culprit vessel and re-ISR in patients with clinical and vascular imaging follow-up data were used to evaluate the long-term outcome. RESULTS 32 patients (59.6±7.2 years old) with ISR were recruited, including 22 patients (68.8%) treated with balloon dilatation, 8 patients (25%) with stenting, and 2 patients (6.3%) with failed procedures. Successful recanalization was achieved in 71.9% (23/32) of patients. There was no stroke, myocardial infarction or death within 30 days after the procedure. Recurrent stroke was found in 10.7% (3/28) of the patients, and re-ISR was found in 42.1% (8/19) of the patients. The re-ISR rate was lower in patients with stenting than in those with balloon dilatation (0% vs 57.1%, p=0.090), and in patients with successful recanalization than in those with unsuccessful recanalization (33.3% vs 75.0%, p=0.352), but with no statistically significant difference. CONCLUSIONS The periprocedural safety of endovascular treatment for intracranial ISR may be acceptable, but the long-term rates of recurrent stroke and re-ISR remain at high levels.
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Affiliation(s)
- Kaijiang Kang
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Feng Gao
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Dapeng Mo
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Ming Yang
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Yifan Liu
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Bo Yang
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Xing Chen
- Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, China
| | - Weibin Gu
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Guofeng Ma
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Xingquan Zhao
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Zhong-Rong Miao
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Ning Ma
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
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Ilyas A, Chen CJ, Ironside N, Buell TJ, Chagoya G, Schmalz PG, Stetler WR, Andaluz N, James RF, Ding D. Medical Management Versus Surgical Bypass for Symptomatic Intracranial Atherosclerotic Disease: A Systematic Review. World Neurosurg 2019; 129:62-71. [DOI: 10.1016/j.wneu.2019.05.223] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 05/25/2019] [Accepted: 05/27/2019] [Indexed: 11/15/2022]
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Cheikh A, Yasuhiro Y, Kasinathan S, Kawase T, Takao T, Kato Y. Superficial Temporal Artery: Middle Cerebral Artery Bypass, Our Series of 20 Cases, Surgical Technique and Indications with Illustrative Cases. Asian J Neurosurg 2019; 14:670-677. [PMID: 31497083 PMCID: PMC6703037 DOI: 10.4103/ajns.ajns_220_18] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
The first extracranial-intracranial (EC-IC) bypass surgery was performed by professor Yasargil in 1967 since then this procedure has been widely used in vascular neurosurgery and sometimes, in tumors excision when a vascular sacrifice is necessary. In this article, we will illustrate the surgical technique of the superficial temporal artery-middle cerebral artery (STA-MCA) bypass with two cases; a 59-year-old male and 64-year-old female who presented with an occlusion of the MCA. The male presented also with a posterior communicating artery-IC aneurysm which was clipped in the same sitting. We also studied in this paper a series of 20 patients operated in Banbuntane Hotokukai Hospital, Fujita Health University, for which a low-flow STA-MCA anastomosis was done for steno-occlusive disease or moyamoya disease. In Banbuntane Hotokukai Hospital, Fujita Health University, 20 patients were operated since 2015, 12 patients were male. Five patients presented with moyamoya disease, while 15 patients presented with vascular steno-occlusive disease. The steno-occlusion was found in internal carotid artery in nine patients. The patients were divided into two categories (steno-occlusive disease and moyamoya). STA-MCA bypass is now one of the basic techniques to master in vascular neurosurgery. It requires to perform the anastomosis correctly within the permissible time. The goal is to have a long-term patency for the anastomosed vessel.
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Affiliation(s)
- Abderrahmane Cheikh
- Department of Neurosurgery, Ali Ait Idir Hospital and Medical School of Algiers, Algiers University, Algeria
| | - Yamada Yasuhiro
- Department of Neurosurgery, Ali Ait Idir Hospital and Medical School of Algiers, Algiers University, Algeria
| | - Sudhakar Kasinathan
- Department of Neurosurgery, Institute of Neurosurgery, Madras Medical College and Rajiv Gandhi Government General Hospital, Chennai, Tamil Nadu, India
| | - Tsukasa Kawase
- Department of Neurosurgery, Ali Ait Idir Hospital and Medical School of Algiers, Algiers University, Algeria
| | - Teranishi Takao
- Department of Neurosurgery, Ali Ait Idir Hospital and Medical School of Algiers, Algiers University, Algeria
| | - Yoko Kato
- Department of Neurosurgery, Banbutane Hotkukai Hospital, Fujita Health University, Toyoake, Nagoya, Aichi Prefecture, Japan
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Li G, Wang N, Li X, Ma N, Liu T, Sun Y, Liu P, Miao Z, Zhang Y. Balloon-Mounted versus Self-Expanding Stent Outcomes in Symptomatic Middle Cerebral Artery Stenosis Combined with Poor Collaterals in China: A Multicenter Registry Study. World Neurosurg 2019; 124:e675-e681. [PMID: 30659967 DOI: 10.1016/j.wneu.2018.12.189] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Revised: 12/20/2018] [Accepted: 12/23/2018] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To compare the technical and 1-year clinical outcome in balloon-mounted versus self-expanding stenting for symptomatic severe stenosis of the middle cerebral artery combined with poor collaterals in China. METHODS Ninety-one patients with severe middle cerebral artery atherosclerotic stenosis combined with poor collaterals were recruited in the study. Balloon-mounted stent or self-expanding stent were selected to treat patients following a guideline. The baseline characteristics, cerebral angiography, and outcomes were compared between the patients treated with balloon-mounted stent and self-expanding stent. RESULTS The mean degree of stenosis was 85.5% ± 6.37% in the balloon-mounted stenting group and 85.4% ± 7.73% in the self-expanding stenting group before treatment (P = 0.930). A longer operative time occurred in patients treated with self-expanding stent than in those treated with balloon-mounted stent (96.7 vs. 68.6 minutes, respectively; P = 0.002). Patients with self-expanding stent had a higher rate of residual stenosis than those with balloon-mounted stent (67.3% vs. 38.9%, respectively; P = 0.014). The patients in balloon-mounted stenting group was less likely to have restenosis (6.1% vs. 26.5%, P = 0.019) and had a lower degree of stenosis (5.0% ± 0.0% vs. 26.9% ± 29.2%, P = 0.019) compared with patients in the self-expanding stenting group. During the 1-year follow-up, the recurrence rate of ischemic stroke, transient ischemic attack, hemorrhage stroke, and death was not significantly different between the 2 groups (1/33 vs. 2/49, P = 0.804; 1/33 vs. 1/49, P = 0.776; 0/33 vs. 2/49, P = 0.240; 1/33 vs. 0/49, P = 0.220, respectively). CONCLUSIONS Balloon-mounted stents may have a shorter operative time and lower restenosis occurrence than self-expanding stents. No significant difference in 1-year outcome was observed between the 2 groups.
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Affiliation(s)
- Guangwen Li
- Department of Neurology and Interventional Neurology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Naidong Wang
- Department of Neurology and Interventional Neurology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Xin Li
- Department of Neurology and Interventional Neurology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Ning Ma
- Department of Interventional Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Tonghui Liu
- Department of Neurology and Interventional Neurology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yujie Sun
- Department of Neurology and Interventional Neurology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Peng Liu
- Department of Neurology and Interventional Neurology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Zhongrong Miao
- Department of Interventional Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Yong Zhang
- Department of Neurology and Interventional Neurology, The Affiliated Hospital of Qingdao University, Qingdao, China.
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Yu Jia Z, Sun Song Y, Jon Sheen J, Goo Kim J, Hee Lee D. Endovascular recanalization of symptomatic non-acute intracranial artery occlusion: Procedural and mid-term clinical outcomes in the anterior circulation. Interv Neuroradiol 2019; 25:380-389. [PMID: 30813809 DOI: 10.1177/1591019919826616] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
OBJECTIVE Symptomatic non-acute intracranial arterial occlusion (NAICO) is not uncommon. We report a single-center experience of the feasibility and safety of endovascular treatment of anterior circulation NAICO and summarize the outcomes of patient groups with successful or failed recanalization. METHODS Patients who underwent endovascular therapy for intracranial arterial stenosis between January 2010 and May 2017 were retrospectively reviewed. Thirty-eight patients with symptomatic NAICO (symptom onset > 24 hours) in the anterior circulation were identified. RESULTS Successful recanalization was achieved in 76.3% of patients (29/38). Intraprocedural events occurred in 10.5% (4/38), including intima dissection (n = 1), parent artery rupture (n = 1) and acute in-stent thrombosis (n = 2). Mean follow-up duration after successful recanalization was 36.5 months. One patient died 68 days after the procedure because of a newly developed posterior circulation stroke. Acute reocclusion was observed in two patients (6.7%); subacute or delayed reocclusion was observed in three patients (10%). Good final outcome (modified Rankin Scale score ≤ 2) was achieved in 25 of 28 patients (89.3%) at three months. Mean follow-up duration of the nine patients with failed recanalization was 41.4 months. Three patients underwent extra-intracranial bypass for worsening symptoms. The other six patients showed stable or improved neurological status with antiplatelet medications. Good final outcome was achieved in eight of nine patients (88.9%) at three months. CONCLUSIONS Endovascular revascularization can be a viable option with an acceptable safety profile in selected patients with symptomatic NAICO in the anterior circulation. Further characterization of aborted cases would facilitate proper patient selection for endovascular treatment.
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Affiliation(s)
- Zhen Yu Jia
- 1 Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.,2 Department of Radiology, The First Affiliated Hospital with Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Yun Sun Song
- 1 Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Jae Jon Sheen
- 1 Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Joong Goo Kim
- 1 Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Deok Hee Lee
- 1 Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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Gao P, Wang Y, Ma Y, Yang Q, Song H, Chen Y, Jiao L, Qureshi AI. Endovascular recanalization for chronic symptomatic intracranial vertebral artery total occlusion: Experience of a single center and review of literature. J Neuroradiol 2018; 45:295-304. [PMID: 29408529 DOI: 10.1016/j.neurad.2017.12.023] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2017] [Revised: 11/29/2017] [Accepted: 12/08/2017] [Indexed: 11/30/2022]
Abstract
OBJECTIVE The optimal treatment of chronic symptomatic total occlusion of the intracranial vertebral artery (ICVA) remains undefined. We report a single-center experience of endovascular recanalization for patients with chronic symptomatic ICVA occlusion who were refractory to medical therapy. METHODS From Jan 2009 to Jan 2017, we retrospectively reviewed 14 consecutive patients presenting with recurrent symptoms attributed to the chronic ICVA occlusion. We searched previous literature using PubMed databases during the same period as comparison. RESULTS Eleven patients out of 14 presented initial symptoms to intervention less than 90days. The occlusion course was extrapolated on simultaneous two-vessel injection angiography or high-resolution MR imaging (HRMRI) in 13 cases. Nine patients had the occlusion beyond the origin of posterior inferior cerebellar artery (PICA) and 5 had the occlusion proximal to the PICA origin. The technical success rate of recanalization was 85.7% (12/14). Two patients (14.3%, 2/14) had peri-procedural complications: 1 developed TIA and 1 presented with perforator occlusion syndrome. Using the keyword-based search, we identified 6 studies at the same period. A total of 34 patients underwent recanalization with the successful recanalization rate at 94.1%, peri-procedural complication rate at 17.6% and mortality at 2.9%, respectively. CONCLUSION Our single-center study illustrated the feasibility and safety of ICVA recanalization. Great care should be taken as revascularization is of high risk. When patient selection, occlusion course and stage as well as neuroimaging evaluation are considered, endovascular recanalization may be a useful therapeutic modality.
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Affiliation(s)
- Peng Gao
- Department of Interventional Neuroradiology, Xuanwu Hospital, Capital Medical University, 45 Changchun Street, 100053 Beijing, China
| | - Yabing Wang
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, 100053 Beijing, China
| | - Yan Ma
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, 100053 Beijing, China
| | - Qi Yang
- Department of Radiology, Xuanwu Hospital, Capital Medical University, 100053 Beijing, China
| | - Haiqing Song
- Department of Neurology, Xuanwu Hospital, Capital Medical University, 100053 Beijing, China
| | - Yanfei Chen
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, 100053 Beijing, China
| | - Liqun Jiao
- Department of Interventional Neuroradiology, Xuanwu Hospital, Capital Medical University, 45 Changchun Street, 100053 Beijing, China.
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