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Wu S, Yin Y, Li Z, Li N, Ma W, Zhang L. Using drug-coated balloons for symptomatic vertebral artery origin stenosis: A systematic review and meta-Analysis. J Clin Neurosci 2023; 107:98-105. [PMID: 36527812 DOI: 10.1016/j.jocn.2022.12.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 11/26/2022] [Accepted: 12/04/2022] [Indexed: 12/23/2022]
Abstract
BACKGROUND Endovascular stenting has emerged as an effective treatment for patients with symptomatic vertebral artery origin stenosis (VAOS), but the incidence of severe restenosis is concerning. Angioplasty alone with a drug-coated balloon (DCB) is a potential treatment for VAOS. The purpose of this systematic review and meta-analysis was to assess the utility of DCB angioplasty for VAOS. METHODS A systematic search of the Medline (PubMed), Embase, CNKI, and Cochrane databases for studies on the treatment of VAOS by DCB angioplasty published in English and Chinese before June 15, 2022 was conducted. Data were extracted using standardized methods. The incidence rates of restenosis, technical success, and perioperative complication in the follow-up period were pooled using Freeman-Tukey double arcsine transformation with random or fixed-effect models. Tests for heterogeneity and publication bias were performed. RESULTS A total of seven studies containing 159 patients were included in this review and meta-analysis. The pre-treatment stenosis rate of the vertebral artery in the DCB group ranged from 70.0 % to 86.3 %, and the median follow-up time ranged from 6.0 to 14.1 months. The pooled restenosis incidence was 11.9 % (95 % CI: 3.4 %-23.4 %; I2 = 59 %, p = 0.02) during the follow-up period. The pooled technical success rate was 96.6 % (95 % CI: 91.4 %-99.7 %; I2 = 37 %, p = 0.14). The overall perioperative complication rate was 2.9 % (95 % CI: 0.3 %-6.9 %; I2 = 0 %, p = 0.64). According to the funnel diagram and Egger's test, there was no evidence of publication bias. CONCLUSION It is suggested in this review and meta-analysis that angioplasty with DCB may be a potential treatment for VAOS. However, randomized studies including a large representative sample of VAOS patients are needed to validate our findings.
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Affiliation(s)
- Shuhui Wu
- Department of Traditional Chinese Medicine, Liaocheng Third People's Hospital, Liaocheng, Shandong 252000, China
| | - Yue Yin
- Department of Traditional Chinese Medicine, Liaocheng Third People's Hospital, Liaocheng, Shandong 252000, China
| | - Zhiqiang Li
- Department of Neurology, Liaocheng People's Hospital, Liaocheng, Shandong 252000, China.
| | - Ning Li
- Department of Neurology, Liaocheng People's Hospital, Liaocheng, Shandong 252000, China
| | - Weibin Ma
- Department of Neurology, Liaocheng People's Hospital, Liaocheng, Shandong 252000, China
| | - Lijun Zhang
- Department of Neurology, Liaocheng People's Hospital, Liaocheng, Shandong 252000, China
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Nso N, Nassar M, Trimingham M, Mbome Y, Lyonga Ngonge A, Badejoko SO, Akbar S, Azhar A, Lakhdar S, Ghallab M, Guzman Perez LM, Rizzo V, Munira MS. Invasive Management of Vertebrobasilar Artery Stenosis and Occlusion: A Meta-Analysis on Efficacy and Safety Endpoints. Cureus 2022; 14:e24751. [PMID: 35686282 PMCID: PMC9170364 DOI: 10.7759/cureus.24751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/05/2022] [Indexed: 11/05/2022] Open
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3
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Wang MY, Wang F, Liu YS, Yu LJ. Comparison of Drug-Coated Balloons to Bare Metal Stents in the Treatment of Symptomatic Vertebral Artery-Origin Stenosis: A Prospective Randomized Trial. World Neurosurg 2021; 154:e689-e697. [PMID: 34343687 DOI: 10.1016/j.wneu.2021.07.113] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Accepted: 07/25/2021] [Indexed: 11/26/2022]
Abstract
OBJECTIVE We sought to compare the angiographic and clinical outcomes of drug-coated balloon (DCB) with distal embolic protection devices (EPDs) versus bare metal stent (BMS) without EPD in the treatment of symptomatic vertebral artery origin stenosis (VAOS). METHODS Between January 2017 and December 2018, a prospective randomized trial was conducted involving 95 patients with symptomatic VAOS randomly assigned to treatment with DCB + EPD (n = 49) or BMS without EPD (n = 46). Target vessel restenosis (RS) >50% detected by computed tomography angiography was the primary endpoint. Technical success, clinical success, and signal intensity abnormalities on diffusion-weighted imaging within 3 days after operation were compared. RESULTS The 30-day technical success rate was 93.9% for DCB group versus 95.7% for the BMS group (P = 0.094). Diffusion-weighted imaging within 3 days postoperative showed asymptomatic embolization in 2 (4.1%) patients in the DCB group and 9 (19.6%) patients in the BMS group (P = 0.004). At a mean 16-month follow-up, the clinical success rate was 89.8% for the DCB group versus 91.3% (42/46) for the BMS group (P = 0.125). The RS was seen in 5/49 (10.2%) in the DCB group and 6/46 (13.0%) in the BMS group (P = 0.082). Target vessel revascularization was performed in 4 (8.7%) BMS group versus 3 (6.1%) in the DCB group (P = 0.091). CONCLUSIONS DCB with EPD in the treatment of symptomatic VAOS is technically feasible and safe and significantly reduced thromboembolic events on imaging when compared with BMS without EPD. There was no significant difference between the 2 groups in the rate of RS during 12 months after surgery.
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Affiliation(s)
- Ming-Yi Wang
- Department of Radiology, The Affiliated Tumour Hospital of Harbin Medical University, Harbin, China
| | - Feng Wang
- Department of Intervention Therapy, First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Yong-Sheng Liu
- Department of Intervention Therapy, First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Li-Juan Yu
- Department of Radiology, The Affiliated Tumour Hospital of Harbin Medical University, Harbin, China.
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Cherednychenko Y, Engelhorn T, Miroshnychenko A, Zorin M, Dzyak L, Tsurkalenko O, Cherednychenko N. Endovascular treatment of patient with multiple extracranial large vessel stenosis and coexistent unruptured wide-neck intracranial aneurysm using a WEB device and Szabo-technique. Radiol Case Rep 2020; 15:2522-2529. [PMID: 33072231 PMCID: PMC7548423 DOI: 10.1016/j.radcr.2020.09.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 09/14/2020] [Accepted: 09/15/2020] [Indexed: 11/16/2022] Open
Abstract
The coexistence of severe extracranial large vessel stenosis and unruptured intracranial aneurysms is not rare. There are different treatment approaches for these conditions, such as initial treatment of the aneurysm before revascularization of the stenosis; single-stage endovascular treatment of both lesions; stenosis eliminating followed by treatment of the aneurysm, or without treating the aneurysm. But, taking into account the risk of aneurysm rupture on the one hand and the risk of ischemic stroke on the other, it is sometimes difficult to choose the right management strategy. Despite this fact, there are still no guidelines or consensus on the management of these coexistent lesions. The article describes a clinical case of endovascular treatment of multiple extracranial stenosis and coexistent unruptured wide-neck aneurysm of the middle cerebral artery. The endovascular treatment of the carotid stenosis and aneurysm using a woven endobridge device was performed in one session; endovascular treatment of vertebral artery stenosis with Szabo technique was performed in another session.
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Affiliation(s)
- Yurii Cherednychenko
- Communal Institution "Dnipropetrovsk Regional Clinical Hospital named by I.I.Mechnikov", Dnipro, Ukraine
| | - Tabias Engelhorn
- Neuroradiological Department, Erlangen University Hospital, Erlangen, Germany
| | - Andrii Miroshnychenko
- Communal Institution "Dnipropetrovsk Regional Clinical Hospital named by I.I.Mechnikov", Dnipro, Ukraine
| | - Mikola Zorin
- State Institution "Dnipropetrovsk Medical Academy" Ministry of Health of Ukraine", Sobornaya squ.14, Dnipro 49027, Ukraine
| | - Liudmila Dzyak
- State Institution "Dnipropetrovsk Medical Academy" Ministry of Health of Ukraine", Sobornaya squ.14, Dnipro 49027, Ukraine
| | - Olena Tsurkalenko
- State Institution "Dnipropetrovsk Medical Academy" Ministry of Health of Ukraine", Sobornaya squ.14, Dnipro 49027, Ukraine
| | - Natalia Cherednychenko
- State Institution "Dnipropetrovsk Medical Academy" Ministry of Health of Ukraine", Sobornaya squ.14, Dnipro 49027, Ukraine
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Ko JK, Choi CH, Hwangbo L, Suh HB, Lee TH, Cho HJ, Sung SM. Endovascular treatment of the vertebral artery origin stenosis by using the closed-cell, self-expandable Carotid Wallstent. Interv Neuroradiol 2020; 26:805-813. [PMID: 32567432 DOI: 10.1177/1591019920935276] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND Endovascular treatment has been considered a good alternative to surgery for symptomatic vertebral artery origin stenosis (VAOS) due to the high risk of morbidity associated with surgery. The purpose of this study was to evaluate the feasibility and efficacy of insertion of the closed-cell, self-expandable Carotid Wallstent for the treatment of VAOS. METHODS The records of 72 patients with VAOS refractory to adequate medication who were treated by endovascular treatment with the Carotid Wallstent from December 2006 to November 2018 were retrospectively evaluated. RESULTS Of the 72 patients, 43 presented with transient ischemic attacks. Forty-seven patients (65.3%) manifested other brachiocephalic stenoses; of these, 40 patients had occlusion, hypoplasia, or stenosis of the contralateral vertebral artery. Overall technical success (defined as 20% or less residual stenosis) was 100%. Procedure-related complications (n = 8, 11.1%) included sudden asystole (n = 1), acute in-stent thrombosis (n = 3), minor stroke (n = 3), and stent shortening (n = 1). All complications were resolved without permanent neurological deficit. Angiographic follow-up (mean, 13.0 months) was achieved in 49 patients and revealed in-stent restenosis in 1 patient (2.0%) and stent malposition by shortening in 2 patients (4.1%). Follow-up records were available in 57 patients (mean 15.6 months). Three of the 57 patients (n = 3, 5.3%) had recurrent symptoms of vertebrobasilar ischemia and none was retreated. CONCLUSIONS Endovascular treatment of symptomatic VAOS using the closed-cell, self-expandable Carotid Wallstent is technically feasible and effective in alleviating patient symptoms and for improving vertebrobasilar blood flow.
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Affiliation(s)
- Jun-Kyeung Ko
- Department of Neurosurgery, Biomedical Research Institute, 220312Pusan National University Hospital, Busan, Republic of Korea
| | - Chang-Hwa Choi
- Department of Neurosurgery, Biomedical Research Institute, 220312Pusan National University Hospital, Busan, Republic of Korea
| | - Lee Hwangbo
- Department of Diagnostic Radiology, Biomedical Research Institute, 220312Pusan National University Hospital, Busan, Republic of Korea
| | - Hie-Bum Suh
- Department of Diagnostic Radiology, Biomedical Research Institute, 220312Pusan National University Hospital, Busan, Republic of Korea
| | - Tae-Hong Lee
- Department of Diagnostic Radiology, Biomedical Research Institute, 220312Pusan National University Hospital, Busan, Republic of Korea
| | - Han-Jin Cho
- Department of Neurology, Biomedical Research Institute, 220312Pusan National University Hospital, Busan, Republic of Korea
| | - Sang-Min Sung
- Department of Neurology, Biomedical Research Institute, 220312Pusan National University Hospital, Busan, Republic of Korea
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Hüttl AB, Hüttl A, Vértes M, Nguyen DT, Bérczi Á, Hüttl K, Dósa E. The presence of long and heavily calcified lesions predisposes for fracture in patients undergoing stenting of the first part of the subclavian artery. J Vasc Surg 2019; 70:1146-1154.e1. [PMID: 30926275 DOI: 10.1016/j.jvs.2019.01.056] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Accepted: 01/08/2019] [Indexed: 11/25/2022]
Abstract
OBJECTIVE To determine the prevalence and risk factors of subclavian artery stent fractures and to investigate their impact on in-stent restenosis development. METHODS One hundred eight patients (65 females; median age, 58.3 years [interquartile range, 53.4-65.5 years]) with steno-occlusive disease of the first part of the subclavian artery who underwent stenting (N = 108 stents; balloon-expandable, 83.3%; self-expandable, 16.7%) between 2005 and 2015 and returned for a fluoroscopic examination of the implanted stents in 2017 were included in our study. Fractures were type I (single strut fracture), type II (multiple strut fractures without deformation), type III (multiple strut fractures with deformation), type IV (multiple strut fractures with acquired transection but without gap), or type V (multiple strut fractures with acquired transection with gap in the stent body). Stent patency was monitored by duplex ultrasound imaging. The Mann-Whitney U and Fisher's exact tests; Kaplan-Meier, receiver operating characteristic, and logistic regression analyses; as well as a log-rank test were used as statistical methods. RESULTS The median follow-up was 73.8 months (interquartile range, 35.6-104.2 months). Thirty-eight fractures (35.2%) were detected; fractures were type I in 13, type II in 12, type III in 6, type IV in 4, and type V in 3 cases. Multivariable logistic regression analysis revealed the presence of long (≥20 mm) lesions (odds ratio, 3.3; 95% confidence interval, 1.3-8.4; P = .012) and heavy calcification (odds ratio, 4.7; 95% confidence interval, 1.7-12.7; P = .002) to be significant independent predictors of stent fracture. The primary patency rates were significantly worse (P = .035) in patients with stent fracture compared with those without stent fracture. CONCLUSIONS Stent fractures frequently occur. Patients with long and/or heavily calcified lesions require closer follow-up.
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Affiliation(s)
| | - Artúr Hüttl
- Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Miklós Vértes
- Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Dat Tin Nguyen
- Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Ákos Bérczi
- Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Kálmán Hüttl
- Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Edit Dósa
- Heart and Vascular Center, Semmelweis University, Budapest, Hungary.
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Chen W, Huang F, Li M, Jiang Y, He J, Li H, Dai Z, Shi W, Zhu M, Chen G, Yang F, Zhang R. Incidence and Predictors of the In-stent Restenosis after Vertebral Artery Ostium Stenting. J Stroke Cerebrovasc Dis 2018; 27:3030-3035. [PMID: 30093203 DOI: 10.1016/j.jstrokecerebrovasdis.2018.06.031] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2018] [Revised: 05/27/2018] [Accepted: 06/24/2018] [Indexed: 10/28/2022] Open
Abstract
BACKGROUND The incidence and predictors for in-stent restenosis (ISR) was not fully explored. We aim to investigate the incidence and predictors of ISR after stenting at the origin of vertebral artery. MATERIALS AND METHODS Two hundred and six patients with 229 stents implantation between July 1, 2005 and July 31, 2015 were included in the study. All patients underwent conventional clinical and angiographic (digital subtraction angiography) follow-up at around 6 months post procedure. ISR was defined as greater than 50% stenosis within or immediately (within 5 mm) adjacent to the stent. Multivariate Cox regression analyses were utilized to investigate the predictors for ISR. RESULTS The ISR was found in 30 patients (30/206, 14.6%) with 31 lesions (31/229, 13.5%) with the mean follow-up duration of 11.1-month (range: 3 - 92 months). Stent diameter (hazard ratio 0.504, 95% confidence interval 0.294 - 0.864) was an independent predictor for ISR. CONCLUSION ISR rate after Vertebral artery ostium stent placement is acceptable, which was conversely associated with the stent diameter.
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Affiliation(s)
- Wanhong Chen
- Department of Neurology, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu Province 210002; Department of Neurology, Xi'an XD group hospital, Xi'an, Shanxi Province 710077, China
| | - Fang Huang
- Department of Neurology, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu Province 210002
| | - Min Li
- Department of Neurology, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu Province 210002
| | - Yongjun Jiang
- Department of Neurology, Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong Province 510260
| | - Jianbo He
- Department of Neurology, Xi'an XD group hospital, Xi'an, Shanxi Province 710077, China
| | - Huiqi Li
- Department of Neurology, Xi'an XD group hospital, Xi'an, Shanxi Province 710077, China
| | - Zheng Dai
- Department of Neurology, Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu Province 214023
| | - Wei Shi
- Department of Intensive Care Unit, The Affiliated Brain Hospital with Nanjing Medical University, Nanjing, Jiangsu Province 210009
| | - Mingyue Zhu
- Department of Intensive Care Unit, The Third Affiliated Hospitial of Nanjing University of Chinese Medicine, Nanjing, Jiangsu Province 210001, China
| | - Guanghui Chen
- Department of Neurology, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu Province 210002
| | - Fang Yang
- Department of Neurology, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu Province 210002.
| | - Renliang Zhang
- Department of Neurology, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu Province 210002.
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Long-Term Risk of In-Stent Restenosis and Stent Fracture for Extracranial Vertebral Artery Stenting. Clin Neuroradiol 2018; 29:701-706. [DOI: 10.1007/s00062-018-0708-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Accepted: 07/04/2018] [Indexed: 10/28/2022]
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Naylor AR, Ricco JB, de Borst GJ, Debus S, de Haro J, Halliday A, Hamilton G, Kakisis J, Kakkos S, Lepidi S, Markus HS, McCabe DJ, Roy J, Sillesen H, van den Berg JC, Vermassen F, Kolh P, Chakfe N, Hinchliffe RJ, Koncar I, Lindholt JS, Vega de Ceniga M, Verzini F, Archie J, Bellmunt S, Chaudhuri A, Koelemay M, Lindahl AK, Padberg F, Venermo M. Editor's Choice - Management of Atherosclerotic Carotid and Vertebral Artery Disease: 2017 Clinical Practice Guidelines of the European Society for Vascular Surgery (ESVS). Eur J Vasc Endovasc Surg 2018; 55:3-81. [PMID: 28851594 DOI: 10.1016/j.ejvs.2017.06.021] [Citation(s) in RCA: 797] [Impact Index Per Article: 132.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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10
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Tang X, Tang F, Hu C, Wang Q, Long W, Li L. Dynamic Respiratory Tortuosity of the Vertebral Artery Ostium. J Endovasc Ther 2016; 24:124-129. [PMID: 27831484 DOI: 10.1177/1526602816676254] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
PURPOSE To determine the prevalence of dynamic respiratory tortuosity (DRT) of the vertebral artery ostium (VAO) as well as to evaluate its correlation with in-stent restenosis (ISR) and stent fracture. METHODS From March 2012 to June 2015, 178 consecutive patients (mean age 65.2±5.8 years; 124 men) with symptoms of atherosclerotic vertebrobasilar ischemia underwent angiography prior to stent implantation in the vertebral, subclavian, and/or carotid arteries. In this cohort, 54 patients (mean age 67.3±5.3 years; 40 men) had VAO stent implantation. Angiography of the vertebral artery was recorded in 2 phases with breath-hold: deep inspiration (DIP) and deep expiration (DEP). Obvious VAO tortuosity was defined as any VAO angle ≤120° in DIP. Obvious VAO-DRT was defined as any VAO angle increasing ≥60° from DIP to DEP. Computed tomography angiography (CTA) or digital subtraction angiography was used in follow-up to detect ISR and stent fracture. RESULTS Of the 178 patients in this study, 21 (11.8%) had obvious VAO tortuosity and 8 (4.5%) had obvious VAO-DRT. Two of the 21 patients with obvious VAO tortuosity also had obvious VAO-DRT. Three of the 54 VAO stent patients had VAO-DRT. There were no correlations between VAO-DRT and age, sex, risk factors, body mass index, chronic obstructive pulmonary disease, asthma, or obvious VAO tortuosity (p>0.05). Over a mean follow-up of 28±10 months, there were 4 (7.4%) asymptomatic VAO ISR cases. Two (3.7%) were occlusions at 6 and 12 months, respectively; both were associated with stent fracture in patients with obvious VAO-DRT before stenting. Both stents fractured at the tortuous VAO region. VAO-DRT was correlated with stent fracture (Spearman ρ=0.81, p<0.01) and ISR (Spearman ρ=0.55, p<0.01). CONCLUSION VAO-DRT could be a risk factor for stent fracture and restenosis after VAO stent implantation. Angiography in both inspiration and expiration phases, especially the latter, should be considered before VAO stenting. Using a shorter stent to avoid crossing the tortuosity could reduce the occurrence of fracture.
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Affiliation(s)
- Xiaobin Tang
- 1 Vascular Surgery Department, Beijing Anzhen Hospital, Beijing, China
| | - Feng Tang
- 2 Vascular Department, First Hospital of Tsinghua University, Beijing, China
| | - Chang Hu
- 2 Vascular Department, First Hospital of Tsinghua University, Beijing, China
| | - Qian Wang
- 2 Vascular Department, First Hospital of Tsinghua University, Beijing, China
| | - Whitney Long
- 2 Vascular Department, First Hospital of Tsinghua University, Beijing, China
| | - Lei Li
- 2 Vascular Department, First Hospital of Tsinghua University, Beijing, China
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12
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Geng X, Hussain M, Du H, Zhao L, Chen J, Su W, Ma L, Gao Z, Ding Y, Ji X. Comparison of self-expanding stents with distal embolic protection to balloon-expandable stents without a protection device in the treatment of symptomatic vertebral artery origin stenosis: a prospective randomized trial. J Endovasc Ther 2015; 22:436-44. [PMID: 25862360 DOI: 10.1177/1526602815579406] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE To compare the angiographic and clinical outcomes of self-expanding stents (SES) with distal embolic protection devices (EPD) vs balloon-expandable stents (BES) without EPD in the treatment of symptomatic atherosclerotic vertebral artery ostial stenosis (VAOS). METHODS Between July 2011 and March 2013, a prospective randomized trial was conducted involving 127 patients (mean age 67.3±10.2 years; 94 men) with symptomatic VAOS randomly assigned to treatment with SES + EPD (Precise RX or RX Acculink stent + Spider FX EPD; n=61) or BES (Palmaz Blue or Resolute RX; n=66) without EPD. In-stent restenosis (ISR) >50% detected by duplex ultrasound was the primary endpoint. Technical success, clinical success, complications within 30 days, and signal intensity abnormalities on diffusion weighted imaging (DWI) after stenting were compared. RESULTS The 30-day technical success rate was 95.5% (63/66) for SES+EPD vs 100% (70/70) for BES without EPD (p=0.072). DWI at 24 hours poststenting showed 2 hyperintense lesions in 2 (3.3%) SES + EPD cases and 15 hyperintense lesions in 13 (18.6%) BES patients (p<0.01). At a mean 18-month follow-up, the clinical success rate was 93.9% (62/66) for the SES + EPD group vs 85.7% (60/70) for the BES group (p=0.115). The ISR was seen in 16/70 (22.9%) arteries in the BES group and 2/66 (3.1%) arteries in SES + EPD group (p<0.01). Target vessel revascularization was performed in 7 (10.0%) BES arteries vs none in the SES + EPD group (p<0.01). CONCLUSION SES with EPD in the treatment of symptomatic VAOS is technically feasible and safe, with low rates of ISR and significantly reduced thromboembolic events on imaging when compared to BES without EPD.
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Affiliation(s)
- Xiaokun Geng
- China-America Institute of Neuroscience, Luhe Hospital, Capital Medical University, Beijing, China Department of Neurological Surgery, Wayne State University School of Medicine, Detroit, MI, USA
| | - Mohammed Hussain
- Department of Neurological Surgery, Wayne State University School of Medicine, Detroit, MI, USA
| | - Huishan Du
- China-America Institute of Neuroscience, Luhe Hospital, Capital Medical University, Beijing, China
| | - Liang Zhao
- China-America Institute of Neuroscience, Luhe Hospital, Capital Medical University, Beijing, China Department of Vascular Surgery, Luhe Hospital, Capital Medical University, Beijing, China
| | - Jian Chen
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Wei Su
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Linlin Ma
- China-America Institute of Neuroscience, Luhe Hospital, Capital Medical University, Beijing, China
| | - Zongen Gao
- Department of Neurology, Central Hospital of Shengli Oilfield, Dongying, China
| | - Yuchuan Ding
- China-America Institute of Neuroscience, Luhe Hospital, Capital Medical University, Beijing, China Department of Neurological Surgery, Wayne State University School of Medicine, Detroit, MI, USA
| | - Xunming Ji
- China-America Institute of Neuroscience, Luhe Hospital, Capital Medical University, Beijing, China Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
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Lu J, Liu J, Wang D, Wang S. Stent fracture and occlusion after treatment of symptomatic vertebral artery ostium stenosis with a self-expanding device. A case report. Interv Neuroradiol 2014; 20:755-60. [PMID: 25496687 DOI: 10.15274/inr-2014-10068] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2014] [Accepted: 04/12/2014] [Indexed: 11/12/2022] Open
Abstract
Endovascular stenting with a balloon expandable device is currently the preferred treatment modality for symptomatic proximal vertebral artery stenosis, but high rates of in-stent restenosis remain a major problem, for which stent fracture might be a contributing factor. Limited reports showed that placement of self-expanding stents in the proximal vertebral artery might reduce restenosis; no stent fracture has been reported to date. We describe here a new case of fracture and occlusion of a self-expanding stent after endovascular treatment of symptomatic vertebral artery ostium stenosis.
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Affiliation(s)
- Jun Lu
- Department of Neurosurgery, Beijing Hospital; Beijing, China -
| | - Jiachun Liu
- Department of Neurosurgery, Beijing Hospital; Beijing, China
| | - Daming Wang
- Department of Neurosurgery, Beijing Hospital; Beijing, China
| | - Shuo Wang
- Department of Neurosurgery, Beijing Hospital; Beijing, China
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14
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High frequency of brachiocephalic trunk stent fractures does not impair clinical outcome. J Vasc Surg 2014; 59:781-5. [DOI: 10.1016/j.jvs.2013.09.038] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2013] [Revised: 09/19/2013] [Accepted: 09/19/2013] [Indexed: 11/18/2022]
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McElhinney DB, Marshall AC, Schievano S. Fracture of Cardiovascular Stents in Patients With Congenital Heart Disease. Circ Cardiovasc Interv 2013; 6:575-85. [DOI: 10.1161/circinterventions.113.000148] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Doff B. McElhinney
- From the NYU Langone Medical Center, New York, NY (D.B.M.); Boston Children’s Hospital, Boston, MA (A.C.M.); and UCL Institute of Cardiovascular science & Great Ormond Street Hospital for Children, London, UK (S.S.)
| | - Audrey C. Marshall
- From the NYU Langone Medical Center, New York, NY (D.B.M.); Boston Children’s Hospital, Boston, MA (A.C.M.); and UCL Institute of Cardiovascular science & Great Ormond Street Hospital for Children, London, UK (S.S.)
| | - Silvia Schievano
- From the NYU Langone Medical Center, New York, NY (D.B.M.); Boston Children’s Hospital, Boston, MA (A.C.M.); and UCL Institute of Cardiovascular science & Great Ormond Street Hospital for Children, London, UK (S.S.)
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16
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Shutze W, Gierman J, McQuade K, Pearl G, Smith B. Treatment of proximal vertebral artery disease. Vascular 2013; 22:85-92. [DOI: 10.1177/1708538112473966] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Vertebral arterial disease (VAD) is a less commonly recognized and treated source of cerebrovascular ischemia compared with carotid artery disease. Patients are often referred for treatment after they have developed symptoms in the form of transient ischemic attacks or had a posterior hemispheric stroke. Traditional treatment of VAD has been surgical. More recently, endovascular treatment of VAD has been utilized. We performed a retrospective review of our institutional experience in treating VAD from 2001 to 2010. For treatment of proximal VAD, perioperative morbidity is lower for the endovascular group than for the surgical group, but six-week mortality was higher for the endovascular group. Complete resolution of symptoms occurred more frequently with surgery than with endovascular therapy. Therefore surgical reconstruction appears to be preferable to angioplasty and stenting for treatment of proximal vertebral artery occlusive disease.
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NII K, ABE G, IKO M, NOMOTO Y, YU I, SAKAMOTO K, KAZEKAWA K. Endovascular Angioplasty for Extracranial Vertebral Artery Occlusion Without Visualization of the Stump of the Artery Ostium. Neurol Med Chir (Tokyo) 2013; 53:422-6. [DOI: 10.2176/nmc.53.422] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Kouhei NII
- Department of Neurosurgery, Fukuoka Kieikai Hospital
| | - Gorou ABE
- Department of Neurosurgery, Fukuoka Kieikai Hospital
| | - Minoru IKO
- Department of Neurosurgery, Fukuoka Kieikai Hospital
| | | | - Iwae YU
- Department of Neurosurgery, Fukuoka Kieikai Hospital
| | - Kimiya SAKAMOTO
- Department of Neurosurgery, Fukuoka University Chikushi Hospital
| | - Kiyoshi KAZEKAWA
- Department of Neurosurgery, Fukuoka University Chikushi Hospital
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Song L, Li J, Gu Y, Yu H, Chen B, Guo L, Zhang J. Drug-Eluting vs. Bare Metal Stents for Symptomatic Vertebral Artery Stenosis. J Endovasc Ther 2012; 19:231-8. [DOI: 10.1583/11-3718.1] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Antoniou GA, Murray D, Georgiadis GS, Antoniou SA, Schiro A, Serracino-Inglott F, Smyth JV. Percutaneous transluminal angioplasty and stenting in patients with proximal vertebral artery stenosis. J Vasc Surg 2011; 55:1167-77. [PMID: 22206680 DOI: 10.1016/j.jvs.2011.09.084] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2011] [Revised: 09/06/2011] [Accepted: 09/24/2011] [Indexed: 01/23/2023]
Abstract
BACKGROUND Atherosclerotic occlusive disease of the proximal vertebral artery is an important cause of cerebrovascular ischemic events with a significant associated morbidity and mortality. Endovascular treatment has emerged as a promising tool of the therapeutic armamentarium, along with medical therapy and surgical reconstruction. Our objective was to systemically review the pertinent evidence on the endovascular management of proximal vertebral artery disease and perform an analysis of the published outcomes. METHODS A systematic review of the literature identified all studies reporting percutaneous transluminal angioplasty or stenting, or both, for proximal vertebral artery stenosis. Web-based search engines were searched using the Medical Subject Headings terms "vertebral artery," "angioplasty," and "stents" in all possible combinations. Studies comprising a series of at least five patients were considered for analysis. Periprocedural transient ischemic attack and stroke and death from any cause ≤30 days of treatment were defined as the primary outcome end points. RESULTS One randomized controlled trial comparing angioplasty and stenting of the proximal vertebral artery and medical therapy was identified. No comparative studies of endovascular treatment and open surgical repair were found. Forty-two selected studies reported endovascular treatment (angioplasty or stenting, or both) of 1117 vertebral arteries in 1099 patients. The weighted mean technical success rate was 97% (range, 36%-100%). Periprocedural transient ischemic attack occurred in 17 patients (1.5%). The combined stroke and death rate was 1.1%. Recurrent symptoms of vertebrobasilar insufficiency developed in 65 of 967 patients (8%) within a reported follow-up of 6 to 54 months. Restenosis developed in 183 of 789 patients (23%) who underwent follow-up imaging (range, 0%-58%). Reintervention for recurrent disease during follow-up occurred in 86 patients (9%; range, 0%-35%). CONCLUSIONS There is limited comparative evidence on the efficacy of medical, surgical, and endovascular treatment of proximal vertebral artery disease. Percutaneous transluminal angioplasty and stenting has low periprocedural neurologic adverse events and mortality.
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Affiliation(s)
- George A Antoniou
- Department of Vascular and Endovascular Surgery, Manchester Royal Infirmary, Central Manchester University Hospitals NHS Foundation Trust, Manchester, United Kingdom.
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Vertebral Artery Origin Stenosis and its Treatment. J Stroke Cerebrovasc Dis 2011; 20:369-76. [DOI: 10.1016/j.jstrokecerebrovasdis.2011.05.007] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2010] [Revised: 04/25/2011] [Accepted: 05/04/2011] [Indexed: 01/28/2023] Open
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Hatano T, Tsukahara T, Miyakoshi A, Arai D, Yamaguchi S, Murakami M. Stent placement for atherosclerotic stenosis of the vertebral artery ostium: angiographic and clinical outcomes in 117 consecutive patients. Neurosurgery 2011; 68:108-16; discussion 116. [PMID: 21099720 DOI: 10.1227/neu.0b013e3181fc62aa] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Although it is thought to be a safe treatment option, the main concerns related to treating vertebral artery ostium (VAO) stenosis with stents have been the rate of restenosis and the uncertain long-term results. OBJECTIVE To evaluate the angiographic and clinical results of stent placement for atherosclerotic stenosis of the VAO. METHODS One hundred seventeen consecutive patients with atherosclerotic VAO stenosis were treated with stent placement over a period of 12 years. All patients were retrospectively analyzed through the use of a prospectively collected database. The indication criteria for this treatment protocol were symptomatic severe VAO stenoses (> 60%) and asymptomatic severe VAO stenoses (> 60%) with incidentally detected infarction in the posterior circulation. The target diameter of stent dilatation from 1997 to 2000 was the normal vessel diameter just distal to the lesion. Moderate overdilation in the proximal portion of the stents has been performed since 2001. RESULTS Successful dilatation was obtained in 116 of 117 cases. Transient neurological complications developed in 2 patients; however, no patients experienced any permanent neurological complications. One hundred four patients underwent follow-up angiography at 6 months after stenting. The restenosis rate at the 6-month follow-up was 9.6% (10 of 104). Until 2000, the restenosis rate after stenting was 13.3%. Since 2001, the restenosis rate has decreased to 4.5%. The median clinical follow-up period was 48 months. The annual rate of strokes in the posterior circulation was 0.95%. CONCLUSION Stent placement for atherosclerotic VAO stenosis is considered to be a feasible and safe treatment and may be effective for stroke prevention. The moderate overdilation of stents may be an effective modality for the prevention of restenosis.
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Affiliation(s)
- Taketo Hatano
- Department of Neurosurgery, Kyoto University, Graduate School of Medicine, Kyoto, Japan.
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Chen X, Huang Q, Hong B, Zhang Y, Xu Y, Liu J. Drug-eluting stent for the treatment of symptomatic vertebral origin stenosis: Long-term results. J Clin Neurosci 2011; 18:47-51. [DOI: 10.1016/j.jocn.2010.05.023] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2010] [Revised: 05/06/2010] [Accepted: 05/12/2010] [Indexed: 11/16/2022]
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Symptomatic Vertebral Artery Stent Fracture: A Case Report. J Vasc Interv Radiol 2010; 21:1751-4. [DOI: 10.1016/j.jvir.2010.07.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2009] [Revised: 05/13/2010] [Accepted: 07/08/2010] [Indexed: 11/18/2022] Open
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Influence of vessel size and tortuosity on in-stent restenosis after stent implantation in the vertebral artery ostium. Cardiovasc Intervent Radiol 2010; 34:481-7. [PMID: 20683721 DOI: 10.1007/s00270-010-9953-4] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2010] [Accepted: 07/07/2010] [Indexed: 12/13/2022]
Abstract
PURPOSE Percutaneous transluminal angioplasty and stenting is emerging as an alternative for treating atherosclerotic stenosis in the vertebral artery ostium. However, in-stent restenosis (ISR) still remains a critical issue to be addressed. Little is known about the relationship between anatomic characteristics of the artery and ISR after stent implantation. In this study, we have evaluated influential factors for ISR in a cohort of the patients with stenting in the vertebral artery ostium. METHODS Sixty-one patients with 63 symptomatic lesions in vertebral artery ostium treated with stenting were enrolled onto this study. An average of 12.5 months' clinical and angiographic follow-up results were analyzed retrospectively. The possible influential factors for ISR, including conventional risk factors of cerebrovascular diseases and morphological characteristics of target lesions, were evaluated by univariate and multivariate regression analysis. RESULTS Technical success was achieved in all 63 interventional procedures. Stenosis was reduced from (mean±standard deviation) 75.5±12% before to 1±3.6% after the procedure. During the mean 12.5-month angiographic follow-up, ISR was detected in 17 treated vessels (27.0%), with 2 treated arteries (3.2%) resulting in occlusion, and a stent fracture in 1 case (1.6%). Multivariate Cox regression analysis showed that the tortuosity of V1 (hazard ratio 3.54, P=0.01) and smaller diameter of the stent (hazard ratio 3.8, P=0.04) were independent predictors of ISR. CONCLUSIONS Angioplasty and stenting for symptomatic stenosis in the vertebral artery ostium stenosis seem to be feasible and effective. Tortuosity and smaller diameter may affect ISR after stent implantation.
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Carotid artery stent fracture identification and clinical relevance. J Vasc Surg 2010; 51:1397-405. [DOI: 10.1016/j.jvs.2010.02.009] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2009] [Revised: 02/01/2010] [Accepted: 02/01/2010] [Indexed: 11/19/2022]
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Affiliation(s)
- Yen-Hung Lin
- Cardiovascular Division, Department of Internal Medicine, National Taiwan University Hospital, and National Taiwan University College of Medicine, Taipei, Taiwan, Republic of China
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27
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Werner M, Bräunlich S, Ulrich M, Bausback Y, Schuster J, Lukhaup A, Botsios S, Scheinert D, Schmidt A. Drug-Eluting Stents for the Treatment of Vertebral Artery Origin Stenosis. J Endovasc Ther 2010; 17:232-40. [DOI: 10.1583/09-2904.1] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Sfyroeras GS, Koutsiaris A, Karathanos C, Giannakopoulos A, Giannoukas AD. Clinical relevance and treatment of carotid stent fractures. J Vasc Surg 2010; 51:1280-5. [PMID: 20347546 DOI: 10.1016/j.jvs.2010.01.050] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2009] [Revised: 01/13/2010] [Accepted: 03/27/2009] [Indexed: 11/18/2022]
Abstract
OBJECTIVE To review all published reports and investigate the clinical relevance and need for treatment of carotid stent fractures. METHODS Electronic and hand-searching of the published literature and the Manufacturer and User Facility Device Experience (MAUDE) database. RESULTS Thirteen articles were published. There are 10 case reports and 3 clinical studies. There are 26 reports of fractured stents in the MAUDE database. Fifty-five cases of carotid stent fractures are reported in total. A total of 201 carotid stents were examined in the 3 studies, and the incidence of fractures was 8.9% (18/201). Fractured stents were 22 Xact, 20 Acculink, 6 Precise, 2 Exponent, 1 Nexstent, 1 Genesis, 1 Symbiot, and 2 nonspecified nitinol self-expandable stents. Twenty-seven of the treated carotid lesions were atherosclerotic, 3 restenoses after carotid endarterectomy, 2 postradiational, 1 pseudoaneurysm, and 22 lesions of unknown pathology. Calcification was reported in 15 of the 27 atherosclerotic lesions (55.5%). Time from implantation to fracture ranged from 0 days (fracture during implantation) to 37 months. In 55% of the cases, stent fracture was associated with restenosis. Six patients presented with symptoms. Treatment was reported for 32 patients: 14 patients underwent de novo stent placement, 2 balloon angioplasty, 2 carotid endarterectomy, 2 bypass graft (1 vein, 1 polytetrafluoroethylene), 1 anticoagulation, and 11 patients were followed up. CONCLUSION Carotid stent fractures are mainly reported in self-expandable nitinol stents. Plaque calcification may be a risk factor for stent fractures. No difference was observed between open and closed-cell design. Stent fractures were often associated with restenosis and usually were asymptomatic. The actual incidence, clinical relevance, and optimal treatment remain to be clarified from larger prospective studies designed to investigate the issue.
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Affiliation(s)
- Giorgos S Sfyroeras
- Department of Vascular Surgery, University Hospital of Larissa, University of Thessaly Medical School, Larissa, Greece
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Chung SY, Lee DH, Choi JW, Choi BS, In HS, Kim SM, Choi CG, Kim SJ, Suh DC. Use of self-expanding stents for the treatment of vertebral artery ostial stenosis: a single center experience. Korean J Radiol 2010; 11:156-63. [PMID: 20191062 PMCID: PMC2827778 DOI: 10.3348/kjr.2010.11.2.156] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2009] [Accepted: 11/27/2009] [Indexed: 11/21/2022] Open
Abstract
Objective To evaluate our early experience using self-expanding stents to treat atherosclerotic vertebral artery ostial stenosis (VAOS), with respect to technical feasibility and clinical and imaging follow-up results. Materials and Methods A total of 20 lesions in 20 patients underwent stenting of the VAOS using a self-expanding stent (Precise RX; Cordis Neurovascular, Miami Lakes, FL). Two patients were asymptomatic. We analyzed the technical success rate, causes of technical failure, occurrence of any vascular or neurological event, and the occurrence of any neurological abnormality or in-stent restenosis (ISR) seen on follow-up. The imaging follow-up was performed with Doppler ultrasound (DUS) as a primary screening modality. Results One instance of technical failure was caused by failure of the guidewire passage. The stent diameter was 5 mm, and post-stenting balloon dilatations were necessary in all cases. Stent misplacement requiring placement of an additional stent occurred in four cases. Following a 14.8 month average clinical follow-up time, two patients showed anterior circulation ischemia, which was not attributed to the VAOS we treated. Following a 13.7 month average DUS follow-up, five patients showed a mild degree of diffuse or focal intimal thickening in the stent lumen; however, none of the stenosis showed luminal loss of more than 50% and no stent fracture was noted. Conclusion The use of self-expanding stents for treating VAOS was technically feasible and helped to improve artery patency during our limited follow-up interval.
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Affiliation(s)
- Sun Young Chung
- Department of Radiology, Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 138-736, Korea
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Choi HS, Kim DI, Kim DJ, Kim J, Kim ES, Lee SK. Accuracy of 3 T MR angioraphy in vertebral artery stenosis and coincidence with other cerebrovascular stenoses. Neuroradiology 2010; 52:893-8. [DOI: 10.1007/s00234-010-0655-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2009] [Accepted: 01/02/2010] [Indexed: 11/29/2022]
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Vajda Z, Miloslavski E, Güthe T, Fischer S, Albes G, Heuschmid A, Henkes H. Treatment of stenoses of vertebral artery origin using short drug-eluting coronary stents: improved follow-up results. AJNR Am J Neuroradiol 2009; 30:1653-6. [PMID: 19729536 DOI: 10.3174/ajnr.a1715] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
BACKGROUND AND PURPOSE Recent studies on stent placement of significant stenoses at the origin of the vertebral artery reported excellent immediate results. Long-term outcomes, however, were disappointing due to high restenosis rates and stent breakage. In the present study, we evaluated the application of a short drug-eluting balloon-expandable coronary stent for the endovascular treatment of these frequent lesions. MATERIALS AND METHODS In a period of 23 months, 48 patients (12 women, 36 men) with a mean age of 68 years (range, 46-82 years) harboring 52 significant ostial vertebral artery stenoses underwent treatment with short (8 mm) balloon-expandable paclitaxel-eluting coronary stents. Stents were deployed as closely as possible so that the proximal end was just at the origin of the vertebral artery, with high inflation pressure applied. Patients were under continuous medication with acetylsalicylic acid and clopidogrel before and after the treatment. Follow-up clinical assessment and angiography were performed in all patients. RESULTS Periprocedural complications were not encountered. Stenosis severity was reduced from 62 +/- 2% (mean +/- standard error of the mean) preprocedurally to 15 +/- 2% postprocedurally. Follow-up angiography at 7.7 +/- 0.6 months revealed a mean stenosis degree of 24 +/- 3%. None of the patients developed posterior circulation symptoms related to the treated segment during the follow-up period. Recurrent stenosis (>50%) at follow-up was found in 6 (12%) lesions. CONCLUSIONS Stent placement of significant ostial vertebral artery stenosis by using short drug-eluting stents is safe and yields good midterm patency rates and excellent protection from posterior circulation ischemia.
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Affiliation(s)
- Z Vajda
- Clinic for Neuroradiology, Katharinenhospital, Klinikum Stuttgart, Stuttgart, Germany.
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The Incidence of Arterial Stent Fractures with Exclusion of Coronary, Aortic, and Non-arterial Settings. Eur J Vasc Endovasc Surg 2008; 36:339-45. [DOI: 10.1016/j.ejvs.2008.05.005] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2007] [Accepted: 05/08/2008] [Indexed: 11/16/2022]
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Varcoe RL, Mah J, Young N, So SS, Vicaretti M, Swinnen J. Prevalence of Carotid Stent Fractures in a Single-Center Experience. J Endovasc Ther 2008; 15:485-9. [DOI: 10.1583/08-2420r.1] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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In situ fracture of stents implanted for relief of pulmonary arterial stenosis in patients with congenitally malformed hearts. Cardiol Young 2008; 18:405-14. [PMID: 18559137 PMCID: PMC4235280 DOI: 10.1017/s1047951108002424] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND One of the most common uses of stents in patients with congenitally malformed hearts is treatment of pulmonary arterial stenosis. Although there are reports of fractured pulmonary arterial stents, little is known about the risk factors for, and implications of, such fractures. METHODS We reviewed angiograms to identify fractures in stents previously inserted to relieve stenoses in pulmonary arteries from 1990 through 2001 in patients who also underwent follow-up catheterization at least 3 years after placement of the stent. We undertook matched cohort analysis, matching a ratio of 2 fractured to 1 unfractured stent. RESULTS Overall, 166 stents meeting the criterions of our study had been placed in 120 patients. We identified fractures in 35 stents (21%) in 29 patients. All fractured stents were in the central pulmonary arteries, 24 (69%) in the central part of the right pulmonary artery, and all were complete axial fractures, or complex fractures along at least 2 planes. Stent-related factors associated with increased risk of fracture identified by multivariable logistic regression included placement in close apposition to the ascending aorta (p = 0.001), and a larger expanded diameter (p = 0.002). There was obstruction across 28 of 35 fractured stents, which was severe in 11. We re-stented 21 of the fractured stents, and recurrent fracture was later diagnosed in 3 of these. A fragment of the fractured stent embolized distally in 2 patients, without clinically important effects. CONCLUSIONS In situ fracture of pulmonary arterial stents is relatively common, and in most cases is related to compression by the aorta. There is usually recurrent obstruction across the fractured stent, but fractured stents rarely embolize, and are not associated with other significant complications.
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Lin YH, Kao HL. In-stent restenosis in vertebral artery stenting. Neuroradiology 2007; 49:865; author reply 867. [PMID: 17823792 DOI: 10.1007/s00234-007-0277-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2007] [Accepted: 06/25/2007] [Indexed: 11/30/2022]
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