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Wu J, Zou Y, Meng X, Fan Z, van der Geest R, Cui F, Li J, Zhang T, Zhang F. Increased incidence of napkin-ring sign plaques on cervicocerebral computed tomography angiography associated with the risk of acute ischemic stroke occurrence. Eur Radiol 2024; 34:4438-4447. [PMID: 38001250 DOI: 10.1007/s00330-023-10404-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 09/06/2023] [Accepted: 09/18/2023] [Indexed: 11/26/2023]
Abstract
OBJECTIVES Carotid atherosclerosis plays an essential role in the occurrence of ischemic stroke. This study aimed to investigate whether a larger burden of napkin-ring sign (NRS) plaques on cervicocerebral computed tomography angiography (CTA) increased the risk of acute ischemic stroke (AIS). METHODS This retrospective, single-center, cross-sectional study enrolled patients with NRS plaques identified in the subclavian arteries, brachiocephalic trunk, carotid arterial system, and vertebrobasilar circulation on contrast-enhanced cervicocerebral CTA. Patients were divided into AIS and non-AIS groups based on imaging within 12 h of symptom onset. Univariate and multivariate logistic regression analyses were performed to determine the risk factor of AIS occurrence. RESULTS A total of 202 patients (66.72 years ± 8.97, 157 men) were evaluated. Plaques with NRS in each subject of the AIS group (N = 98) were significantly more prevalent than that in the control group (N = 104) (1.96 ± 1.17 vs 1.41 ± 0.62). In the AIS group, there were substantially more NRS plaques on the ipsilateral side than contralateral side (1.55 ± 0.90 vs. 0.41 ± 0.66). NRS located on the ipsilateral side of the AIS showed an area under the receiver curve (AUC) of 0.86 to identify ischemic stroke. NRS plaque amounts were an independent risk factor for AIS occurrence (odds ratio, 1.86) after adjusting for other factors. CONCLUSIONS Increased incidence of napkin-ring sign plaques on cervicocerebral CTA was positively associated with AIS occurrence, which could aid in detecting asymptomatic atherosclerotic patients at high risk of AIS in routine screening or emergency settings. CLINICAL RELEVANCE STATEMENT Napkin-ring sign plaque provides an important imaging target for estimating acute ischemic stroke risk and identifying high-risk patients in routine screening or emergency settings, so that timely anti-atherosclerotic therapy can be used for prevention. KEY POINTS • This cross-sectional study investigated the association between high-risk carotid artery plaques and acute ischemic stroke. • Increased incidence of napkin-ring sign plaques on cervicocerebral computed tomography angiography is positively associated with acute ischemic stroke occurrence. • Napkin-ring signs help identify risky patients prone to acute ischemic stroke to facilitate prevention.
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Affiliation(s)
- Jingping Wu
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China
- Department of Radiology, Hainan Hospital of PLA General Hospital, Sanya, China
| | - Ying Zou
- Department of Radiology, Hainan Hospital of PLA General Hospital, Sanya, China
| | - Xiao Meng
- Department of Nutrition, School of Public Health, Sun Yat-Sen University, Guangzhou, China
| | - Zhaoyang Fan
- Department of Radiology, University of Southern California, Los Angeles, CA, USA
| | - Rob van der Geest
- Department of Radiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Fang Cui
- Department of Neurology, Hainan Hospital of PLA General Hospital, Sanya, China
| | - Jianyong Li
- Department of Neurology, Hainan Hospital of PLA General Hospital, Sanya, China
| | - Tengyuan Zhang
- Department of Neurology, Hainan Hospital of PLA General Hospital, Sanya, China
| | - Fan Zhang
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China.
- Department of Radiology, Hainan Hospital of PLA General Hospital, Sanya, China.
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Zapata-Arriaza E, Aguilar Pérez M, Albóniga-Chindurza AD, Medina-Rodriguez M, Montaner J, Moniche F, González A. Development of a Risk Prediction Nomogram for Carotid Re-Stenosis in the One Year RECAST Registry. Eur J Vasc Endovasc Surg 2024:S1078-5884(24)00460-X. [PMID: 38802040 DOI: 10.1016/j.ejvs.2024.05.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 04/23/2024] [Accepted: 05/21/2024] [Indexed: 05/29/2024]
Abstract
OBJECTIVE The long term benefit of carotid angioplasty and stenting (CAS) can be reduced by recurrent stroke related to in stent re-stenosis (ISR). An individualised predictive tool is needed to identify ISR events. A nomogram for individual risk assessment of ISR ≥ 70% after CAS is proposed. METHODS A national observational, prospective, multicentre registry was conducted between January 2015 and December 2020. Cohorts of patients with symptomatic or asymptomatic severe carotid stenosis who underwent CAS with a follow up of at least one year after CAS were included. Duplex ultrasound was used to assess in stent re-stenosis. Pre-operative factors were compared between the non-ISR and ISR groups. Kaplan-Meier and Cox regression were used for variable selection. The nomogram was formulated and validated by concordance indices and calibration curves. An in stent re-stenosis risk table was generated for risk stratification. RESULTS A total of 354 patients were included in the analysis. The ISR rate of ≥ 70% was 7.6% (n = 27). Peripheral arterial disease (hazard ratio [HR] 3.18, 95% confidence interval [CI] 1.23 - 8.24, p = .017), anterior communicating artery absence (HR 3.38, 95% CI 1.27 - 8.94, p = .016), diabetes mellitus (HR 3.34, 95% CI 1.21 - 9.26, p = .020), female sex (HR 2.99, 95% CI 1.04 - 8.60, p = .041), and pre-procedure pathological ultrasound vasoreactivity (HR 3.87, 95% CI 1.43 -10.50, p = .008), as independent risk factors for ISR of ≥ 70%, were included in the nomogram. The concordance index at 12 and 24 months was 0.83. In low risk groups, ISR of ≥ 70% occurred in 4.8% of patients during follow up compared with 56.2% of patients in the high risk groups (p < .001). CONCLUSION The nomogram and risk evaluation score have good predictive ability for ISR. They can be used as practical clinical tools for individualised risk assessment.
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Affiliation(s)
- Elena Zapata-Arriaza
- Stroke Research Program, Institute of Biomedicine of Seville, IBiS/Hospital Universitario Virgen del Rocío/Macarena/CSIC/University of Seville, Seville, Spain; Interventional Neuroradiology Department, University Hospital Virgen del Rocio, Seville, Spain
| | - Marta Aguilar Pérez
- Stroke Research Program, Institute of Biomedicine of Seville, IBiS/Hospital Universitario Virgen del Rocío/Macarena/CSIC/University of Seville, Seville, Spain; Interventional Neuroradiology Department, University Hospital Virgen del Rocio, Seville, Spain
| | - Asier De Albóniga-Chindurza
- Stroke Research Program, Institute of Biomedicine of Seville, IBiS/Hospital Universitario Virgen del Rocío/Macarena/CSIC/University of Seville, Seville, Spain; Interventional Neuroradiology Department, University Hospital Virgen del Rocio, Seville, Spain
| | - Manuel Medina-Rodriguez
- Stroke Research Program, Institute of Biomedicine of Seville, IBiS/Hospital Universitario Virgen del Rocío/Macarena/CSIC/University of Seville, Seville, Spain; Department of Neurology, University Hospital Virgen del Rocio, Seville, Spain
| | - Joan Montaner
- Stroke Research Program, Institute of Biomedicine of Seville, IBiS/Hospital Universitario Virgen del Rocío/Macarena/CSIC/University of Seville, Seville, Spain
| | - Francisco Moniche
- Stroke Research Program, Institute of Biomedicine of Seville, IBiS/Hospital Universitario Virgen del Rocío/Macarena/CSIC/University of Seville, Seville, Spain; Department of Neurology, University Hospital Virgen del Rocio, Seville, Spain
| | - Alejandro González
- Stroke Research Program, Institute of Biomedicine of Seville, IBiS/Hospital Universitario Virgen del Rocío/Macarena/CSIC/University of Seville, Seville, Spain; Interventional Neuroradiology Department, University Hospital Virgen del Rocio, Seville, Spain.
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Zhou Y, Ma Y, Qian D, Zhou Z, Li B, Chai E. The Atherogenic Index of Plasma Predicts Carotid in-Stent Restenosis: Development and Validation of a Nomogram. Int J Gen Med 2024; 17:263-274. [PMID: 38292824 PMCID: PMC10824612 DOI: 10.2147/ijgm.s447008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Accepted: 01/16/2024] [Indexed: 02/01/2024] Open
Abstract
Purpose To explore the predictive value of atherogenic index of plasma(AIP) for carotid in-stent restenosis(ISR). Methods Patients who underwent carotid artery stenting (CAS) in hospital from January 2016 to January 2021 were retrospectively enrolled. They were randomly divided into training and validation sets. Based on the results of carotid digital subtraction angiography (DSA) during the follow-up period, the patients were divided into ISR group and non-ISR group. The differences of AIP and lipid levels between the two groups were compared. The independent risk factors of ISR and the predictive value of AIP for ISR were analyzed. A nomogram was developed based on the independent risk factors, and the receiver operating characteristic (ROC) curve, the calibration curve and the decision curve analysis were conducted to assess the predictive ability and clinical practicability of the nomogram in both the training set and validation sets. Results A total of 361 patients were enrolled, including 98 in the ISR group and 263 in the non-ISR group. In the training set, AIP was significantly higher in the ISR group than in the non-ISR group (P < 0.05) and was independently associated with ISR (OR= 10.912, 95% CI: 2.520-47.248). When AIP was 0.10, it had the highest predictive value for ISR, with a sensitivity of 72. 1% and a specificity of 75.0%. Additionally, hypertension, residual stenosis, symptomatic stenosis and Hcy were also independent risk factors for ISR. The nomogram showed good discrimination performance and clinical practicability in both the training set (AUC = 0.827) and the validation set (AUC = 0.880). Conclusion AIP was an independent risk factor for ISR and was closely related to ISR. The nomogram developed by AIP and other variables had good predictive ability and clinical practicability for ISR.
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Affiliation(s)
- Yu Zhou
- First Clinical Medical College, Lanzhou University, Lanzhou, People’s Republic of China
- Cerebrovascular Disease Center, Gansu Provincial Hospital, Lanzhou, People’s Republic of China
- Key Laboratory of Cerebrovascular Diseases, Lanzhou, People’s Republic of China
| | - Yong Ma
- Cerebrovascular Disease Center, Gansu Provincial Hospital, Lanzhou, People’s Republic of China
- Key Laboratory of Cerebrovascular Diseases, Lanzhou, People’s Republic of China
- Clinical Medicine College, Ningxia Medical University, Yinchuan, People’s Republic of China
| | - Dongliang Qian
- Cerebrovascular Disease Center, Gansu Provincial Hospital, Lanzhou, People’s Republic of China
- Key Laboratory of Cerebrovascular Diseases, Lanzhou, People’s Republic of China
| | - Zhou Zhou
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, People’s Republic of China
- National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, People’s Republic of China
| | - Bin Li
- Cerebrovascular Disease Center, Gansu Provincial Hospital, Lanzhou, People’s Republic of China
- Key Laboratory of Cerebrovascular Diseases, Lanzhou, People’s Republic of China
| | - Erqing Chai
- First Clinical Medical College, Lanzhou University, Lanzhou, People’s Republic of China
- Cerebrovascular Disease Center, Gansu Provincial Hospital, Lanzhou, People’s Republic of China
- Key Laboratory of Cerebrovascular Diseases, Lanzhou, People’s Republic of China
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Johari NH, Menichini C, Hamady M, Xu XY. Computational modeling of low-density lipoprotein accumulation at the carotid artery bifurcation after stenting. INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN BIOMEDICAL ENGINEERING 2023; 39:e3772. [PMID: 37730441 DOI: 10.1002/cnm.3772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 07/10/2023] [Accepted: 09/04/2023] [Indexed: 09/22/2023]
Abstract
Restenosis typically occurs in regions of low and oscillating wall shear stress, which also favor the accumulation of atherogenic macromolecules such as low-density lipoprotein (LDL). This study aims to evaluate LDL transport and accumulation at the carotid artery bifurcation following carotid artery stenting (CAS) by means of computational simulation. The computational model consists of coupled blood flow and LDL transport, with the latter being modeled as a dilute substance dissolved in the blood and transported by the flow through a convection-diffusion transport equation. The endothelial layer was assumed to be permeable to LDL, and the hydraulic conductivity of LDL was shear-dependent. Anatomically realistic geometric models of the carotid bifurcation were built based on pre- and post-stent computed tomography (CT) scans. The influence of stent design was investigated by virtually deploying two different types of stents (open- and closed-cell stents) into the same carotid bifurcation model. Predicted LDL concentrations were compared between the post-stent carotid models and the relatively normal contralateral model reconstructed from patient-specific CT images. Our results show elevated LDL concentration in the distal section of the stent in all post-stent models, where LDL concentration is 20 times higher than that in the contralateral carotid. Compared with the open-cell stents, the closed-cell stents have larger areas exposed to high LDL concentration, suggesting an increased risk of stent restenosis. This computational approach is readily applicable to multiple patient studies and, once fully validated against follow-up data, it can help elucidate the role of stent strut design in the development of in-stent restenosis after CAS.
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Affiliation(s)
- Nasrul H Johari
- Department of Chemical Engineering, Imperial College London, South Kensington Campus, London, UK
- Centre for Advanced Industrial Technology, University Malaysia Pahang, Pekan, Pahang, Malaysia
| | - Claudia Menichini
- Department of Chemical Engineering, Imperial College London, South Kensington Campus, London, UK
| | - Mohamad Hamady
- Department of Surgery & Cancer, Imperial College London, St. Mary's Campus, London, UK
| | - Xiao Y Xu
- Department of Chemical Engineering, Imperial College London, South Kensington Campus, London, UK
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Li R, Jamal A, Chao S, Cammarata TM, Beeman BR. Society for Vascular Surgery duplex ultrasound surveillance guidelines are safe and cost effective for transcarotid artery revascularization. J Vasc Surg 2023; 78:988-994.e1. [PMID: 37257672 DOI: 10.1016/j.jvs.2023.05.038] [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: 03/28/2023] [Revised: 05/19/2023] [Accepted: 05/20/2023] [Indexed: 06/02/2023]
Abstract
BACKGROUND Carotid duplex ultrasound (CDUS) examination is used in the long-term surveillance after transcarotid artery revascularization (TCAR). The objective of this study was to evaluate the usefulness and cost effectiveness of post-TCAR CDUS surveillance regimens in monitoring for in-stent restenosis (ISR) and associated stroke risk at a single-center community institution. METHODS CDUS data were collected retrospectively from patients who had undergone TCAR between January 2017 and January 2023. ISR >50% was defined as a peak systolic velocity (PSV) of >220 cm/s and an internal carotid artery (ICA) to common carotid velocity ratio of >2.7. ISR >80% was defined as a PSV of >340 cm/s and an ICA/common carotid artery ratio of >4.15. Study outcomes included incidences of ISR, reintervention, transient ischemic attacks (TIAs), strokes, and mortality. A Kaplan-Meier survival analysis was done to calculate the rates of freedom from ISR. RESULTS During the study period, 108 TCAR stents were deployed in 104 patients. Eight patients were excluded in analysis or lost to follow-up. Preoperatively, 62% of patients had >80% stenosis, and 39% were symptomatic. No intraprocedural complications were noted. One patient suffered an immediate postoperative dissection. Eight stents (8%) experienced ISR progression from <50% to >50%. Three of the eight had further ISR progression to >80%. One patient had high-grade ISR and a contralateral ICA occlusion that warranted reintervention. There were no occurrences of postoperative TIAs, strokes, or TCAR-related deaths. Rates of freedom from ISR progression from <50% to >50% were 97.4%, 95.9%, 90.9%, 88.2%, and 88.2% at 6, 12, 24, 36, and 42 months, respectively. Rates of freedom from ISR >80% were 100%, 100%, 98.5%, 95.5%, and 95.5% at the same time points. Patients with >50% ISR tended to be females with hyperlipidemia. In addition, they had higher average lesion lengths and lower rates of postdilation balloon angioplasty. The 5-year estimated surveillance cost in this cohort using the Society for Vascular Surgery 2022, and 2018 guidelines, as well as our current protocol would be $113,853, $221,382, and $193,207, respectively. CONCLUSIONS This study revealed a low incidence of ISR progression, as well as no TIA, stroke, or TCAR-related deaths, highlighting the safety and efficacy of TCAR. Post-TCAR CDUS examination using the updated Society for Vascular Surgery guidelines are safe and cost effective. Patients with contralateral occlusion or stenosis, or who have significant risk factors, should have more frequent surveillance regimens.
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Affiliation(s)
- Richard Li
- Carle Illinois College of Medicine, University of Illinois at Urbana-Champaign, Urbana, IL
| | - Abdur Jamal
- Carle Illinois College of Medicine, University of Illinois at Urbana-Champaign, Urbana, IL; Heart and Vascular Institute, Carle Foundation Hospital, Urbana, IL
| | - Sharon Chao
- Carle Illinois College of Medicine, University of Illinois at Urbana-Champaign, Urbana, IL
| | | | - Brian R Beeman
- Carle Illinois College of Medicine, University of Illinois at Urbana-Champaign, Urbana, IL; Heart and Vascular Institute, Carle Foundation Hospital, Urbana, IL.
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Juan YH, Wu CH, Lin TM, Lin CP, Chang FC. Length and location of post-PIRCS predict percutaneous transluminal angioplasty and stenting-related restenosis in nasopharyngeal cancer. Eur J Radiol 2023; 165:110894. [PMID: 37290362 DOI: 10.1016/j.ejrad.2023.110894] [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: 02/13/2023] [Revised: 05/19/2023] [Accepted: 05/23/2023] [Indexed: 06/10/2023]
Abstract
PURPOSE Post-irradiated carotid stenosis (PIRCS) commonly occurs in patients with nasopharyngeal cancer (NPC) after receiving radiotherapy. A high in-stent restenosis (ISR) is observed in these patients after percutaneous transluminal angioplasty and stenting (PTAS) for PIRCS. Risk factors for ISR in these patients remain unclear. METHODS Data were retrospectively analyzed from 68 NPC patients with 70 lesions treated with PTAS for PIRCS. The median follow-up was 40 months (range: 4-120). Evaluations of demographic and clinical characteristics included stenotic severity, stenotic lesion length (SLL), stenotic lesion location, and ISR-related stroke during follow-up. The risk for ISR was evaluated using multiple Cox regression analysis. RESULTS The median age of the patients was 61 (35-80) years and 94.1% were male. The median stenosis was 80% (60-99%) and the median SLL was 2.6 cm (0.6-12.0 cm) before PTAS. Compared to those without ISR, patients with longer SLL were at significantly greater risk of developing significant ISR, defined as > 50% after PTAS (hazard ratio [HR] and 95% confidence interval [CI]: 2.06 [1.30-3.28]). PTAS for lesions from the internal carotid artery (ICA) to common carotid artery (CCA) was associated with a significantly greater risk of ISR than lesions located only in the ICA (HR: 9.58 [1.79-51.34]). The baseline cut-off value for SLL that best predicted significant ISR was 1.6 cm (area under the curve 0.700, sensitivity 83.3% and specificity 62.5%). CONCLUSION Stenotic lesions located from the ICA to CCA with longer SLL at baseline appear to predict ISR in NPC patients with PIRCS after PTAS. Intensive post-procedural follow-up is advised for this patient population.
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Affiliation(s)
- Yu-Hsiu Juan
- Department of Radiology, Taipei Tzu Chi Hospital Buddhist Tzu Chi Medical Foundation, No. 289, Jianguo Rd., Xindian Dist., New Taipei 231, Taiwan; School of Medicine, Tzu Chi University, 701 Zhongyang Rd., Sec. 3, Hualien 970, Taiwan; Department of Biomedical Imaging and Radiological Sciences, National Yang Ming Chiao Tung University, No. 155, Sc. 2, Linong St., Beitou Dist., Taipei 112, Taiwan
| | - Chia-Hung Wu
- Department of Radiology, Taipei Veterans General Hospital, No.201, Sec. 2, Shipai Rd., Beitou District, Taipei 112, Taiwan; School of Medicine, National Yang Ming Chiao Tung University, No. 155, Sc. 2, Linong St., Beitou Dist., Taipei 112, Taiwan; Institute of Clinical Medicine, National Yang Ming Chiao Tung University, No. 155, Sc. 2, Linong St., Beitou Dist., Taipei 112, Taiwan
| | - Te-Ming Lin
- Department of Radiology, Taipei Veterans General Hospital, No.201, Sec. 2, Shipai Rd., Beitou District, Taipei 112, Taiwan; School of Medicine, National Yang Ming Chiao Tung University, No. 155, Sc. 2, Linong St., Beitou Dist., Taipei 112, Taiwan
| | - Ching-Po Lin
- Department of Biomedical Imaging and Radiological Sciences, National Yang Ming Chiao Tung University, No. 155, Sc. 2, Linong St., Beitou Dist., Taipei 112, Taiwan; Institute of Neuroscience, National Yang Ming Chiao Tung University, No. 155, Sc. 2, Linong St., Beitou Dist., Taipei 112, Taiwan; Center for Healthy Longevity and Aging Sciences, National Yang Ming Chiao Tung University, No. 155, Sc. 2, Linong St., Beitou Dist., Taipei 112, Taiwan; Department of Education and Research, Taipei City Hospital, Taipei 106, Taiwan
| | - Feng-Chi Chang
- Department of Radiology, Taipei Veterans General Hospital, No.201, Sec. 2, Shipai Rd., Beitou District, Taipei 112, Taiwan; School of Medicine, National Yang Ming Chiao Tung University, No. 155, Sc. 2, Linong St., Beitou Dist., Taipei 112, Taiwan.
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Chen L, Xu Y, Li L, Ji T, Wang Y, Zhu W, Wang F, Zhang Q. A single-center retrospective study of the COCO technique in the treatment of chronic internal carotid artery occlusion. J Neurointerv Surg 2023:jnis-2023-020451. [PMID: 37463767 DOI: 10.1136/jnis-2023-020451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 06/29/2023] [Indexed: 07/20/2023]
Abstract
OBJECTIVE To introduce a novel endovascular recanalization method and to investigate its success rate, periprocedural complications, and early outcomes in patients with chronic internal carotid artery occlusion (CICAO). As this novel technique was designed to treat CICAO with a full coaxial system, we named it the COCO technique. METHODS Data from consecutive patients with symptomatic CICAO who underwent endovascular recanalization in our institution were retrospectively reviewed. The COCO technique allows extracranial angioplasty and stenting with occasional intracranial angioplasty and stenting as needed to be performed in a coaxial fashion. Patients' demographic and clinical information, morphologic characteristics, procedural results, complications, and follow-up outcomes were recorded. RESULTS Forty-nine patients were enrolled in this study. The technical success rate was 89.8% (44/49). Four patients experienced intraoperative complications, two patients had a slight subarachnoid hemorrhage, and two patients had asymptomatic dissection. Distal embolization or carotid-cavernous arteriovenous fistula was not detected. In addition, three patients developed hemorrhagic complications and three developed postoperative ischemic complications. All these patients improved after conservative treatment and subsequent rehabilitation. During the median 6 (3-6) months of follow-up, one patient died of severe pneumonia and two patients experienced recurrent ischemic events. In patients with successful recanalization, modified Rankin Scale scores were lower at the 3-month follow-up than at baseline (1 (0-2) vs 2 (1-2), P=0.04). Restenosis was observed in six (15.8%) patients. CONCLUSIONS Our study showed that the COCO technique is effective and safe for endovascular recanalization in patients with CICAO and has low periprocedural complications and favorable functional outcomes.
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Affiliation(s)
- Liuwei Chen
- Department of Neurosurgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yi Xu
- Department of Neurosurgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Lei Li
- Department of Neurosurgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Tao Ji
- Department of Neurosurgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yongpeng Wang
- Department of Neurology, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Wenyu Zhu
- Department of Neurosurgery, The Affiliated Suzhou Science and Technology Town Hospital, Suzhou, China
| | - Feng Wang
- Department of Neurology, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Quanbin Zhang
- Department of Neurosurgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
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Hu J, Hu N, Hu T, Zhang J, Han D, Wang H. Associations between preprocedural carotid artery perivascular fat density and early in-stent restenosis after carotid artery stenting. Heliyon 2023; 9:e16220. [PMID: 37346364 PMCID: PMC10279783 DOI: 10.1016/j.heliyon.2023.e16220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 05/04/2023] [Accepted: 05/10/2023] [Indexed: 06/23/2023] Open
Abstract
Objectives This study investigated the association between perivascular fat density (PFD) via preoperative computed tomographic angiography (CTA) and early in-stent restenosis (ISR) after carotid artery stenting (CAS). Methods We retrospectively evaluated 248 consecutive patients who had undergone initial CAS and received a preoperative cervical CTA examination between January 2019 and October 2020. The patients were categorized into two according to whether they sustained ISR during the 2 years postoperative follow-up period. Correlations between PFD and ISR were assessed, and multivariate regression for evaluating predictors of ISR was conducted. Receiver operating characteristic (ROC) curves were used to determine the cutoff value for the PFD. Results A total of 181 eligible patients (mean age 61.25 ± 10.35 years, 57 male) were enrolled. The ISR group had a higher proportion of closed-cell stents (48.8% versus 27.5%; p = 0.009) and a greater degree of residual stenosis (28[20,33] % versus 20[14.75,30] %; p < 0.001) than the non-ISR group. The ISR group had a higher mean HU value of PFD than the non-ISR group on the operated side (-42.26 ± 6.81 versus -59.66 ± 10.75; p < 0.001). The degree of residual stenosis (OR 1.146, 95%CI 1.071-1.226, p < 0.001) and PFD on the operated side (OR1.353, 95%CI 1.215-1.506, p < 0.001) were significantly associated with the ISR. Conclusions The occurrence of the early ISR after CAS is associated with a higher PFD on the operated side. The results indicate that PFD is a promising marker to predict the ISR after CAS.
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Affiliation(s)
- Jun Hu
- Faculty of Integrated Traditional Chinese and Western Medicine, Hebei University of Chinese Medicine, Shijiazhuang, China
- Department of Neurosurgery, Affiliated Hospital of Chengde Medical University, Chengde, China
| | - Na Hu
- Department of Radiology, Chengde Central Hospital, Chengde, China
| | - Tiemin Hu
- Department of Neurosurgery, Affiliated Hospital of Chengde Medical University, Chengde, China
| | - Jiwei Zhang
- Department of Neurosurgery, Affiliated Hospital of Chengde Medical University, Chengde, China
| | - Dong Han
- Department of Radiology, Affiliated Hospital of Chengde Medical University, Chengde, China
| | - Hong Wang
- Faculty of Integrated Traditional Chinese and Western Medicine, Hebei University of Chinese Medicine, Shijiazhuang, China
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Zhao SS, Jiang ZZ, Wei B, Zhu JB, Liu XT. The preoperative triglyceride-glucose index has a positive effect on predicting the risk of short-term restenosis after carotid artery stenting: a retrospective cohort study. Front Neurol 2023; 14:1159601. [PMID: 37139054 PMCID: PMC10149666 DOI: 10.3389/fneur.2023.1159601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 03/27/2023] [Indexed: 05/05/2023] Open
Abstract
Background Increasing evidence suggests that insulin resistance is linked to cardiovascular disease and atherosclerosis. The triglyceride-glucose (TyG) index has proven to be a convincing marker to quantitatively evaluate insulin resistance. However, there is no relevant information about the relationship between the TyG index and restenosis after carotid artery stenting. Methods A total of 218 patients were enrolled. Carotid ultrasound and computed tomography angiography were used to evaluate in-stent restenosis. A Kaplan-Meier analysis and Cox regression method were performed to analyze the correlation between TyG index and restenosis. Schoenfeld residuals were used to determine the proportional-hazards assumption. A restricted cubic spline method was used to model and visualize the dose-response relationship between the TyG index and the risk of in-stent restenosis. Subgroup analysis was also performed. Results Thirty-one participants (14.2%) developed restenosis. The preoperative TyG index had a time-varying effect on restenosis. Within 29 months post-surgery, an increasing preoperative TyG index was linked to a significant increased risk of restenosis (hazard ratio: 4.347; 95% confidence interval 1.886-10.023). However, after 29 months, the effect was decreased, although not statistically significant. The subgroup analysis showed that the hazard ratios tended to be higher in the age ≤ 71 years subgroup (p < 0.001) and participants with hypertension (p < 0.001). Conclusion The preoperative TyG index was significantly associated with the risk of short-term restenosis after CAS within 29 months post-surgery. The TyG index may be employed to stratify patients based on their risk of restenosis after carotid artery stenting.
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Affiliation(s)
- Shan-shan Zhao
- Department of Ultrasound, Shaoxing People’s Hospital, Shaoxing, China
| | - Zhen-zhen Jiang
- Department of Ultrasound, Shaoxing People’s Hospital, Shaoxing, China
| | - Bo Wei
- Department of Neurology, Shaoxing People’s Hospital, Shaoxing, China
| | - Jian-bo Zhu
- Department of Ultrasound, Shaoxing People’s Hospital, Shaoxing, China
| | - Xia-tian Liu
- Department of Ultrasound, Shaoxing People’s Hospital, Shaoxing, China
- *Correspondence: Xia-tian Liu,
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10
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Tekieli L, Mazurek A, Pieniazek P, Musialek P. Symptomatic atherosclerotic plaque progression in a first-generation carotid stent: management and 5-year clinical and imaging outcome-a case report. Eur Heart J Case Rep 2022; 6:ytab489. [PMID: 35174303 PMCID: PMC8846173 DOI: 10.1093/ehjcr/ytab489] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 06/08/2021] [Accepted: 11/15/2021] [Indexed: 11/23/2022]
Abstract
Background Restenosis in first-generation (single-layer) carotid stents (FGS) is believed to represent an exaggerated healing response of (neo)intimal hyperplasia (NIH) formation. Rather than NIH, we describe symptomatic in-FGS unstable plaque (neo)atherosclerosis mandating re-revascularization. To halt continued plaque evolution, we propose a novel treatment strategy involving a microNet-covered stent (MCS, second-generation carotid stent) to sequestrate the plaque from the vessel lumen. A durable long-term result is documented using multi-modal imaging. Case summary With a seemingly optimal result of FGS (Precise) symptomatic carotid lesion revascularization followed by optimal medical therapy, a late (≥3 years) progressive in-stent restenosis (ISR) arose. At Year 11, crescendo ipsilateral transient ischaemic attacks occurred. Angiography showed an ulcerated tight lesion throughout stent length. Intravascular ultrasound (IVUS) virtual histology imaging revealed thin-cap fibroatheroma. Reintervention was performed under distal protection. Undersized balloon predilatation to insert a stent caused symptomatic no-flow, and aspiration catheter was used to reduce the filter load. A MCS (CGuard) was implanted and post-dilated to ensure full lumen gain; IVUS confirmed complete plaque sequestration. The optimal anatomic result remained unchanged throughout 5 years (ultrasound and computed tomography verification); this was accompanied by clinical cure. Discussion This is the first demonstration of in-FGS (neo)atherosclerosis resolution using an MCS to sequestrate and insulate the atherosclerotic plaque. We show that ISR may be underlined by atherosclerotic plaque progression via the FGS single-layer stent struts that may show vulnerable plaque phenotype and may be associated with cerebral ischaemia. The anatomically and clinically effective exclusion of the atherosclerotic plaque by an MCS enabled lasting, optimal endovascular reconstruction and clinical cure.
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Affiliation(s)
- Lukasz Tekieli
- Department of Interventional Cardiology, Jagiellonian University Institute of Cardiology, John Paul II Hospital, ul. Pradnicka 80, 31-202 Krakow, Poland.,Department of Cardiac and Vascular Diseases, Jagiellonian University Institute of Cardiology, John Paul II Hospital, ul. Pradnicka 80, 31-202 Krakow, Poland
| | - Adam Mazurek
- Department of Cardiac and Vascular Diseases, Jagiellonian University Institute of Cardiology, John Paul II Hospital, ul. Pradnicka 80, 31-202 Krakow, Poland
| | - Piotr Pieniazek
- Department of Interventional Cardiology, Jagiellonian University Institute of Cardiology, John Paul II Hospital, ul. Pradnicka 80, 31-202 Krakow, Poland.,Department of Cardiac and Vascular Diseases, Jagiellonian University Institute of Cardiology, John Paul II Hospital, ul. Pradnicka 80, 31-202 Krakow, Poland.,Department of Vascular Surgery and Endovascular Interventions, John Paul II Hospital, ul. Pradnicka 80, 31-202 Krakow, Poland
| | - Piotr Musialek
- Department of Cardiac and Vascular Diseases, Jagiellonian University Institute of Cardiology, John Paul II Hospital, ul. Pradnicka 80, 31-202 Krakow, Poland
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11
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Miura Y, Kanamaru H, Yasuda R, Toma N, Suzuki H. Nonfasting Triglyceride as an Independent Predictor of Carotid Restenosis After Carotid Endarterectomy or Carotid Artery Stenting. World Neurosurg 2021; 156:e415-e425. [PMID: 34587521 DOI: 10.1016/j.wneu.2021.09.091] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 09/19/2021] [Accepted: 09/20/2021] [Indexed: 11/19/2022]
Abstract
OBJECTIVE Nonfasting serum triglyceride (TG) level is attracting more and more attention as an atherosclerosis-promoting factor. However, no study has investigated the relationships between nonfasting TG levels and carotid restenosis after carotid endarterectomy (CEA) or carotid artery stenting (CAS). This study was conducted to investigate if nonfasting TG levels can be used to assess a risk for carotid restenosis after CEA or CAS. METHODS This was a single-center retrospective study. We reviewed 201 consecutive primary carotid artery revascularization procedures (39 CEAs and 162 CASs), which were performed from 2008 to 2018 for 179 patients (163 men and 16 women) with atherosclerotic carotid stenosis, and were followed up for at least 1 year. Clinical variables including nonfasting lipid profiles and findings of magnetic resonance plaque imaging were compared between groups with and without postprocedural carotid restenosis (≥50% stenosis on ultrasonography). RESULTS During a mean follow-up period of 1413 days, 24 of 201 carotid stenosis procedures (11.9%) suffered restenosis after successful revascularization procedures. Multivariate analyses demonstrated that nonfasting TG level was the only independent risk factor of postprocedural restenosis. The receiver operating characteristic curve analyses revealed that a cutoff value of nonfasting TG to discriminate postprocedural carotid restenosis was 127.5 mg/dL, which was much lower than the upper limit of normal. CONCLUSIONS This study showed that nonfasting TG level may be a useful marker to predict carotid restenosis after CEA or CAS, and could be a new therapeutic target to prevent carotid restenosis after revascularization procedures.
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Affiliation(s)
- Yoichi Miura
- Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - Hideki Kanamaru
- Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - Ryuta Yasuda
- Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - Naoki Toma
- Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - Hidenori Suzuki
- Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan.
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12
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Tokunaga K, Tokunaga S, Hara K, Yasaka M, Okada Y, Kitazono T, Tsumoto T. Intraplaque high-intensity signal on time-of-flight magnetic resonance angiography and restenosis after carotid artery stenting. J Neurosurg 2021; 136:1029-1034. [PMID: 34560643 DOI: 10.3171/2021.4.jns21546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 04/14/2021] [Indexed: 11/06/2022]
Abstract
OBJECTIVE To test the hypothesis that intraplaque hemorrhage is a predictor of restenosis after carotid artery stenting (CAS), the association between intraplaque high-intensity signal (HIS) on time-of-flight MR angiography (TOF-MRA), as a marker of intraplaque hemorrhage, and restenosis after CAS was assessed in the present observational study. METHODS Consecutive patients who underwent initial CAS for atherosclerotic stenosis in the cervical internal carotid artery in the authors' department were enrolled. Of these, patients without preprocedural cervical TOF-MRA were excluded. Outcome measures were ≥ 50% restenosis, defined as a peak systolic velocity of > 1.3 m/sec; or occlusion and ≥ 70% restenosis, defined as a peak systolic velocity of > 2.1 m/sec; or occlusion on carotid duplex ultrasound. RESULTS Of 230 consecutive patients who underwent initial CAS, 22 without preprocedural cervical TOF-MRA were excluded. Of the remaining 208 patients (mean age 73 years; 33 women), 46 had intraplaque HIS. Ultrasound follow-up was not performed in 4 patients. The median follow-up duration was 3.2 years (interquartile range 1.7-5.1 years). During the follow-up period, 102 patients had ≥ 50% restenosis and 36 had ≥ 70% restenosis. Intraplaque HIS was significantly associated with increased risk of ≥ 50% restenosis (adjusted hazard ratio 2.18; 95% CI 1.28-3.68) and ≥ 70% restenosis (adjusted hazard ratio 3.12; 95% CI 1.32-7.52). CONCLUSIONS Intraplaque HIS on TOF-MRA was associated with increased risk of restenosis after CAS. The present results indicate that intraplaque hemorrhage is a predictor of restenosis after CAS.
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Affiliation(s)
- Keisuke Tokunaga
- 1Department of Neuroendovascular Surgery, Clinical Research Institute, National Hospital Organization Kyushu Medical Center
| | - So Tokunaga
- 1Department of Neuroendovascular Surgery, Clinical Research Institute, National Hospital Organization Kyushu Medical Center
| | - Kenta Hara
- 1Department of Neuroendovascular Surgery, Clinical Research Institute, National Hospital Organization Kyushu Medical Center
| | - Masahiro Yasaka
- 2Department of Cerebrovascular Medicine and Neurology, Clinical Research Institute, National Hospital Organization Kyushu Medical Center; and
| | - Yasushi Okada
- 2Department of Cerebrovascular Medicine and Neurology, Clinical Research Institute, National Hospital Organization Kyushu Medical Center; and
| | - Takanari Kitazono
- 3Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Tomoyuki Tsumoto
- 1Department of Neuroendovascular Surgery, Clinical Research Institute, National Hospital Organization Kyushu Medical Center
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13
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Zhang X, Xu X, Lu L, Wan X, Qin Y, Ruan W, Lv C, He L, Guo X. A new Mfn-2 related synthetic peptide promotes vascular smooth muscle cell apoptosis via regulating the mitochondrial apoptotic pathway by inhibiting Akt signaling. J Transl Med 2021; 19:395. [PMID: 34538249 PMCID: PMC8451139 DOI: 10.1186/s12967-021-03064-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Accepted: 09/02/2021] [Indexed: 01/11/2023] Open
Abstract
Background Restenosis after angioplasty is a major challenge for the treatment of coronary artery diseases. Facilitation of vascular smooth muscle cell (VSMC) apoptosis may be an attractive approach to decrease the incidence of restenosis. We synthesized a 16-amino acid mitofusin-2 (Mfn-2) gene related peptide (MRSP) based on the sequence of the p21ras signature motif, the smallest functional sequence of the Mfn-2 gene with proapoptotic properties in VSMC. We investigated whether MRSP enhanced apoptotic activities to inhibit VSMC accumulation and neointimal hyperplasia in rats with carotid balloon injury. Methods VSMCs were treated with different concentrations of MRSP, the PI3K agonist 740 Y-P and the inhibitor LY294002. Cell apoptosis and related pathway molecules were assessed. MRSP was also given to rats with carotid artery balloon injury. Neointimal hyperplasia and cell apoptotic pathways were detected. Results In vitro experiments revealed that MRSP treatment significantly increased VSMC apoptosis and induced increases in procaspase-9 cleavage, caspase-3 activation, cytochrome c release from mitochondria to the cytoplasm and the Bax/Bcl-2 ratio but not caspase-8 expression, indicating that the mitochondrial apoptotic cascade was activated by MRSP, which might be attributed to suppression of the PI3K/Akt signaling pathway. We further found that the PI3K agonist 740 Y-P prevented and that the inhibitor LY294002 strengthened the proapoptotic effects of MRSP. MRSP strongly inhibited neointimal hyperplasia and VSMC accumulation, but increased VSMC apoptosis in the vascular wall after balloon injury. Moreover, MRSP substantially enhanced Bax and cleaved caspase-3 expression and decreased Bcl-2 levels in intima, accompanied by decreased levels of phosphorylated Akt and PI3K in vivo. Conclusions Taken together, the present study showed that MRSP treatment results in a strong proapoptotic effect by activating the mitochondrial apoptotic cascade through suppression of the PI3K/Akt pathway. Supplementary Information The online version contains supplementary material available at 10.1186/s12967-021-03064-1.
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Affiliation(s)
- Xinxin Zhang
- Department of Cardiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Xiangyu Xu
- Department of Cardiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.,Department of Cardiology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Shandong, China
| | - Li Lu
- Department of Cardiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.,Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Xiaoning Wan
- Department of Cardiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Yating Qin
- Department of Cardiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Weibin Ruan
- Department of Cardiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Chao Lv
- Department of Cardiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Lin He
- Department of Cardiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.,Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Shanghai Jiaotong University, Shanghai, China
| | - Xiaomei Guo
- Department of Cardiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
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14
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Ösken A, Akdeniz E, Keskin M, Öz A, Ipek G, Zehir R, Barutça H, Çam N, Şahin S. Estimated Glomerular Filtration Rate as a Predictor of Restenosis After Carotid Stenting Using First-Generation Stents. Angiology 2021; 72:762-769. [PMID: 33966501 DOI: 10.1177/00033197211014684] [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] [Indexed: 12/12/2022]
Abstract
This study evaluated the impact of the baseline estimated glomerular filtration rate (eGFR) on clinical and angiographic outcomes and long-term in-stent restenosis (ISR) rates in patients undergoing elective carotid artery stenting (CAS) procedures. Consecutive patients who underwent CAS were retrospectively enrolled (n = 456). At the end of 3 years of follow-up, patients who had died or were lost follow-up were excluded from the study and a final analysis was performed using data from the remaining 405 patients. The study population (n = 405) was divided into 3 tertiles based on the tertile values of the eGFR level (T1, T2, and T3); then, clinical and procedural characteristics and 3-year ISR rates were compared between the groups. An ISR of 50% was detected in 49 (12%) surviving patients. The 3-year ISR was higher among patients with the lowest eGFR values (T1) by 3.7 times (95% CI: 2.01-11.38) than that among patients with the highest eGFR values (T3). These significant relationships persisted following adjustment for confounders. A lower baseline eGFR level was significantly associated with an increased ISR rate. Decreased renal function may be a predictor of ISR after CAS using first-generation stents.
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Affiliation(s)
- Altuğ Ösken
- Department of Cardiology, 111319Dr Siyami Ersek Thoracic and Cardiovascular Surgery Center, Training and Research Hospital, Istanbul, Turkey
| | - Evliya Akdeniz
- Department of Cardiology, 111319Dr Siyami Ersek Thoracic and Cardiovascular Surgery Center, Training and Research Hospital, Istanbul, Turkey.,Department of Cardiology, Başkent University Faculty of Medicine, Istanbul, Turkey
| | - Muhammed Keskin
- Department of Cardiology, 111319Dr Siyami Ersek Thoracic and Cardiovascular Surgery Center, Training and Research Hospital, Istanbul, Turkey.,Department of Cardiology, Abdulhamid Han Training and Research Hospital, Istanbul, Turkey
| | - Ahmet Öz
- Department of Cardiology, 111319Dr Siyami Ersek Thoracic and Cardiovascular Surgery Center, Training and Research Hospital, Istanbul, Turkey.,Department of Cardiology, Istanbul Training and Research Hospital, Istanbul, Turkey
| | - Göktürk Ipek
- Department of Cardiology, 111319Dr Siyami Ersek Thoracic and Cardiovascular Surgery Center, Training and Research Hospital, Istanbul, Turkey
| | - Regayip Zehir
- Department of Cardiology, 111319Dr Siyami Ersek Thoracic and Cardiovascular Surgery Center, Training and Research Hospital, Istanbul, Turkey.,Department of Cardiology, Kartal Koşuyolu Training and Research Hospital, Istanbul, Turkey
| | - Hakan Barutça
- Department of Radiology, 111319Dr Siyami Ersek Thoracic and Cardiovascular Surgery Center, Training and Research Hospital, Istanbul, Turkey
| | - Neşe Çam
- Department of Cardiology, 111319Dr Siyami Ersek Thoracic and Cardiovascular Surgery Center, Training and Research Hospital, Istanbul, Turkey
| | - Sinan Şahin
- Department of Radiology, 111319Dr Siyami Ersek Thoracic and Cardiovascular Surgery Center, Training and Research Hospital, Istanbul, Turkey
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15
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Chen ST, Luo CB, Guo WY, Chang FC. Endovascular management of symptomatic stenosis of supra-aortic arteries in patients with Takayasu arteritis. J Chin Med Assoc 2021; 84:303-308. [PMID: 33350653 DOI: 10.1097/jcma.0000000000000479] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Endovascular management is used to treat Takayasu arteritis (TA) involving the supra-aortic branches. However, the long-term outcome of this treatment remains unclear. Here, technical safety, outcomes, and restenosis management of supra-aortic arteries in TA patients receiving endovascular treatment were evaluated. METHODS TA patients with symptomatic supra-aortic stenosis who underwent percutaneous angioplasty and stenting between 2008 and 2018 at our institute were enrolled in this study. Pre- and post-procedural magnetic resonance imaging (MRI) evaluations, including high-resolution vessel wall imaging (HR-VWI), were performed. Technical efficacy, peri-procedural complications, early post-procedural MRI results, and stent patency were examined. RESULTS All six patients successfully received stent placement or percutaneous transluminal angioplasty in a total of 22 treated arteries without neurologic complications. During follow-up (mean, 56.3 ± 41.1 months), no recurrent stroke occurred, yet significant restenosis developed in 12 of 22 (54.5%) of the treated arteries. Three of the patients underwent HR-VWI before surgery. Concentric wall thickening and enhancement of the left common carotid artery was detected in one patient, indicating acute inflammation. Angioplasty with drug-eluting balloon (DEB) successfully treated a case of refractory restenosis. Among 10 early post-procedure MRI performed, only two asymptomatic new lesions were detected with diffusion-weighted imaging. CONCLUSION Endovascular treatment of supra-aortic arteries of TA patients was safe and effective, yet was associated with a high restenosis rate. Thus, close follow-up is needed. HR-VWI is helpful for pre-procedural selection of patients for percutaneous angioplasty and stenting and drug-eluting balloon angioplasty appears to be a promising treatment for refractory in-stent restenosis.
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Affiliation(s)
- Shu-Ting Chen
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
| | - Chao-Bao Luo
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
| | - Wan-Yuo Guo
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
| | - Feng-Chi Chang
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
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16
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Armstrong EJ, Kokkinidis DG. Restenosis After Carotid Artery Stenting. CARDIOVASCULAR REVASCULARIZATION MEDICINE 2021; 24:70-71. [PMID: 33468421 DOI: 10.1016/j.carrev.2021.01.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Accepted: 01/08/2021] [Indexed: 10/22/2022]
Affiliation(s)
- Ehrin J Armstrong
- Division of Cardiology, Rocky Mountain Regional VA Medical Center, University of Colorado, Denver, CO, USA.
| | - Damianos G Kokkinidis
- Section of Cardiovascular Medicine, Yale New Haven Hospital, Yale University School of Medicine, CT, USA
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17
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Chen JH, Wu MH, Luo CB, Lirng JF, Chen ST, Wu CH, Guo WY, Chang FC. Long-term imaging follow-up to evaluate restenosis in patients with carotid stenosis after angioplasty and stenting. J Chin Med Assoc 2021; 84:87-94. [PMID: 32773586 DOI: 10.1097/jcma.0000000000000405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Stent patency after carotid angioplasty and stenting (CAS) correlates not only with stroke prevention but also with improvements in cognition and quality of life by positively influencing cerebral perfusion. The long-term outcomes of CAS after more than 5 years have still not been well described. This retrospective study was designed to evaluate the stent patency and significant restenosis (SR) after CAS with more than 5 years of follow-up. METHODS Between 2006 and 2012, 118 patients with carotid stenosis who underwent 131 CAS procedures with regular annual imaging follow-up for more than 5 years were enrolled. We evaluated their demographic characteristics and the risk factors related to stent restenosis. Patients with SR (restenosis ≥ 50%) were compared with those with no significant restenosis (NSR, patency or restenosis < 50%) to identify the restenosis predictors and restenosis-free survival. RESULTS Of the 131 CAS procedures, 16.0% (21/131) had SR. A history of head and neck radiotherapy (HNRT) was a predictor for SR (HR, 6.352; 95% CI, 2.504-16.112; p < 0.001) and was associated with shorter restenosis-free survival (log-rank test p value < 0.001, median time of restenosis-free survival was 38 months). Left-sided stenting was an associated factor for SR (HR, 3.007; 95% CI, 1.068-8.467; p = 0.037) with a trend of less restenosis-free survival (log-rank test p value 0.067). CONCLUSION Both HNRT and left-sided carotid stenosis were predictors of SR after CAS in more than 5 years of long-term follow-up. Restenosis-free survival was significantly shorter in patients with prior HNRT than in patients without previous irradiation treatment. We suggest close follow-up and aggressive medical treatment for patients with prior HNRT and left-sided carotid stenosis undergoing CAS.
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Affiliation(s)
- Jung-Hsuan Chen
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Mei-Han Wu
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
- Department of Medical Imaging-Diagnostic Radiology, Cheng Hsin General Hospital, Taipei, Taiwan, ROC
| | - Chao-Bao Luo
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Jiing-Feng Lirng
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Shu-Ting Chen
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Chia-Hung Wu
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Wan-Yuo Guo
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Feng-Chi Chang
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
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18
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Wang C, Zhao P, Sun T, Han M, Wang Y, Wu W, Li X, Wang D. Hybrid Recanalization for the Treatment of Carotid/Vertebral In-stent Restenosis or Occlusion: Pilot Surgery Experiences From One Single Center. Front Neurol 2020; 11:604672. [PMID: 33329364 PMCID: PMC7732432 DOI: 10.3389/fneur.2020.604672] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 10/30/2020] [Indexed: 11/13/2022] Open
Abstract
Background : The hybrid recanalization of internal carotid artery (ICA) and vertebral artery (VA) in-stent restenosis or occlusion using a combination of endarterectomy and endovascular intervention has achieved technical success. We present our surgical experiences to further evaluate the safety and efficacy of the hybrid technique for the treatment of in-stent restenosis and occlusion. Methods : A cohort of 12 refractory patients with in-stent restenosis or occlusion who underwent hybrid recanalization, a combination of endarterectomy and endovascular intervention, were retrospectively analyzed. Medical records, including presenting symptoms, comorbidities, contralateral ICA/VA findings, use of antiplatelet drugs, postoperative complications, and angiographic outcomes, were collected. Results : Among 415 consecutive patients with ICA, common carotid artery, and V1 segment lesions, 12 refractory patients (2.89%) with 13 cases were enrolled in our study (1 female and 11 male). All patients underwent successful hybrid recanalization. There were no cases of postoperative stroke or death. Only two patients sustained hoarseness, but it resolved within 2 weeks after surgery. Three patients were treated with dual antiplatelet (aspirin and clopidogrel), seven with single antiplatelet (aspirin), one with single antiplatelet (clopidogrel), and one with single antiplatelet (ticagrelor). All patients were followed up in the outpatient department according to the protocol, with a mean follow-up period of 13 months (range, 6-24 months). No death or recurrent symptoms occurred during the regular follow-up period. Conclusion : The hybrid technique maybe a safe and feasible treatment option to recanalize in-stent restenosis or occlusion with acceptable complications.
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Affiliation(s)
- Chao Wang
- School of Clinical Medicine, Shandong University, Jinan, China.,Dezhou City People's Hospital, Dezhou, China.,Department of Neurosurgery, Binzhou Medical University Hospital, Binzhou, China.,Department of Neurosurgery, Qilu Hospital of Shandong University and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, China
| | - Peng Zhao
- Department of Neurosurgery, Qilu Hospital of Shandong University and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, China
| | - Tao Sun
- School of Clinical Medicine, Shandong University, Jinan, China.,Department of Neurosurgery, Qilu Hospital of Shandong University and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, China
| | - Mengtao Han
- School of Clinical Medicine, Shandong University, Jinan, China.,Department of Neurosurgery, Qilu Hospital of Shandong University and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, China
| | - Yunyan Wang
- Department of Neurosurgery, Qilu Hospital of Shandong University and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, China
| | - Wei Wu
- Department of Neurology, Qilu Hospital of Shandong University and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, China
| | - Xingang Li
- School of Clinical Medicine, Shandong University, Jinan, China.,Department of Neurosurgery, Qilu Hospital of Shandong University and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, China
| | - Donghai Wang
- School of Clinical Medicine, Shandong University, Jinan, China.,Department of Neurosurgery, Qilu Hospital of Shandong University and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, China
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19
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Geith MA, Nothdurfter L, Heiml M, Agrafiotis E, Gruber M, Sommer G, Schratzenstaller TG, Holzapfel GA. Quantifying stent-induced damage in coronary arteries by investigating mechanical and structural alterations. Acta Biomater 2020; 116:285-301. [PMID: 32858190 DOI: 10.1016/j.actbio.2020.08.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 07/28/2020] [Accepted: 08/12/2020] [Indexed: 11/18/2022]
Abstract
Vascular damage develops with diverging severity during and after percutaneous coronary intervention with stent placement and is the prevailing stimulus for in-stent restenosis. Previous work has failed to link mechanical data obtained in a realistic in vivo or in vitro environment with data collected during imaging processes. We investigated whether specimens of porcine right coronary arteries soften when indented with a stent strut shaped structure, and if the softening results from damage mechanisms inside the fibrillar collagen structure. To simulate the multiaxial loading scenario of a stented coronary artery, we developed the testing device 'LAESIO' that can measure differences in the stress-stretch behavior of the arterial wall before and after the indentation of a strut-like stamp. The testing protocol was optimized according to preliminary experiments, more specifically equilibrium and relaxation tests. After chemical fixation of the specimens and subsequent tissue clearing, we performed three-dimensional surface and second-harmonic generation scans on the deformed specimens. We analyzed and correlated the mechanical response with structural parameters of high-affected tissue located next to the stamp indentation and low-affected tissue beyond the injured area. The results reveal that damage mechanisms, like tissue compression as well as softening, fiber dispersion, and the lesion extent, are direction-dependent, and the severity of them is linked to the strut orientation, indentation pressure, and position. The findings highlight the need for further investigations by applying the proposed methods to human coronary arteries. Additional data and insights might help to incorporate the observed damage mechanisms into material models for finite element analyses to perform more accurate simulations of stent-implantations.
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Affiliation(s)
- Markus A Geith
- Institute of Biomechanics, Graz University of Technology, Graz, Austria; Biomedical Engineering Department, King's College London, London, United Kingdom
| | | | - Manuel Heiml
- Institute of Biomechanics, Graz University of Technology, Graz, Austria
| | | | | | - Gerhard Sommer
- Institute of Biomechanics, Graz University of Technology, Graz, Austria
| | - Thomas G Schratzenstaller
- Medical Device Laboratory, Regensburg Center of Biomedical Engineering, Technical University of Applied Sciences Regensburg, Regensburg, Germany
| | - Gerhard A Holzapfel
- Institute of Biomechanics, Graz University of Technology, Graz, Austria; Department of Structural Engineering, Norwegian University of Science and Technology, Trondheim, Norway.
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20
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Öcal L, Küp A, Çelik M, Cerşit S, Keskin M, Havan N, Gürsoy MO, Şahin M, Eren H, Koyuncu A, Uslu A, Yılmaz F, Yazıcıoğlu MV, Türkmen MM. What should be the Optimal Carotid Stent Opening Rate Without Post-Dilation? J Stroke Cerebrovasc Dis 2020; 29:105155. [PMID: 32912494 DOI: 10.1016/j.jstrokecerebrovasdis.2020.105155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 06/25/2020] [Accepted: 07/11/2020] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND There is not a widely accepted optimal rate of stent opening in patients underwent carotid artery stenting. In this study we evaluated the effect of carotid stent opening rate (CSOR) without performing post-dilation on in-hospital and long-term outcomes. METHODS A total of 825 patient patients underwent carotid artery stenting without post-dilation enrolled to the study. The patients divided into two groups according to their final CSOR (50% ≤ Post-stent deployment (SD) <80% and 80% ≤ Post-SD ≤ 100%). In-hospital and 3-year outcomes were compared between the groups. RESULTS During hospitalization, the rate of ipsilateral stroke, major stroke and transient ischemic attacks were similar between the groups (respectively; 6.2% vs. 4.1, P = 0.190; 1.5% vs. 1.8, P = 0.811; 1.5% vs. 1.9%, P = 0.683). The 3-year Kaplan-Meier overall survival rates for the first and second groups were 87.6% and 84.4%, respectively (log rank test P = 0.426). The 3-year Kaplan-Meier overall cumulative ipsilateral stroke rates for the first and second groups were 88.0% and 88.6%, respectively (log rank test P = 0.409) CONCLUSION: Our study demonstrated that a CSOR higher than 50% without performing a post-dilation might be an effective therapeutic approach since there was not a significant difference regarding outcomes between the patients with a 50% ≤ Post-SD <80% and 80% ≤ Post-SD ≤ 100%. The need for post-stent balloon dilation might have been eliminated due to subsequent stent self-expansion.
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Affiliation(s)
- Lütfi Öcal
- Cardiology, Health Sciences University, Kartal Koşuyolu Heart Training and Research Hospital, Istanbul, Turkey
| | - Ayhan Küp
- Cardiology, Health Sciences University, Kartal Koşuyolu Heart Training and Research Hospital, Istanbul, Turkey
| | - Mehmet Çelik
- Cardiology, Health Sciences University, Kartal Koşuyolu Heart Training and Research Hospital, Istanbul, Turkey
| | - Sinan Cerşit
- Cardiology, Health Sciences University, Kartal Koşuyolu Heart Training and Research Hospital, Istanbul, Turkey
| | - Muhammed Keskin
- Cardiology, Health Sciences University, Sultan Abdulhamid Han Training and Research Hospital, Istanbul, Turkey.
| | - Nuri Havan
- Radiology, Health Sciences University, Kartal Koşuyolu Heart Training and Research Hospital, Istanbul, Turkey
| | - Mustafa Ozan Gürsoy
- Cardiology, Katip Çelebi University, Atatürk Training and Research Hospital, Izmir, Turkey
| | - Müslüm Şahin
- Cardiology, VM Pendik Medical Park Hospital, Istanbul, Turkey
| | - Hayati Eren
- Cardiology, Elbistan State Hospital, Kahramanmaraş, Turkey
| | - Atilla Koyuncu
- Cardiology, Health Sciences University, Bakırköy Training and Research Hospital, Istanbul, Turkey
| | - Abdulkadir Uslu
- Cardiology, Health Sciences University, Kartal Koşuyolu Heart Training and Research Hospital, Istanbul, Turkey
| | - Fatih Yılmaz
- Cardiology, Health Sciences University, Kartal Koşuyolu Heart Training and Research Hospital, Istanbul, Turkey
| | - Mehmet Vefik Yazıcıoğlu
- Cardiology, Health Sciences University, Kartal Koşuyolu Heart Training and Research Hospital, Istanbul, Turkey
| | - Mehmet Muhsin Türkmen
- Cardiology, Health Sciences University, Kartal Koşuyolu Heart Training and Research Hospital, Istanbul, Turkey
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21
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Vértes M, Nguyen DT, Székely G, Bérczi Á, Dósa E. Middle and Distal Common Carotid Artery Stenting: Long-Term Patency Rates and Risk Factors for In-Stent Restenosis. Cardiovasc Intervent Radiol 2020; 43:1134-1142. [PMID: 32440962 PMCID: PMC7369259 DOI: 10.1007/s00270-020-02522-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Accepted: 05/09/2020] [Indexed: 01/22/2023]
Abstract
Purpose In the absence of literature data, we aimed to determine the long-term patency rates of middle/distal common carotid artery (CCA) stenting and to investigate predisposing factors in the development of in-stent restenosis (ISR). Materials and Methods Fifty-one patients (30 males, median age 63.5 years), who underwent stenting with 51 self-expandable stents for significant (≥ 60%) stenosis of the middle/distal CCA, were analyzed retrospectively. Patient (atherosclerotic risk factors, comorbidities, medications), vessel (elongation), lesion (stenosis grade, length, calcification, location), and stent characteristics (material, diameter, length, fracture) were examined. Duplex ultrasonography was used to monitor stent patency. The Mann–Whitney U and Fisher’s exact tests, Kaplan–Meier analyses, and a log-rank test were used statistically. Results The median follow-up time was 35 months (interquartile range, 20–102 months). Significant (≥ 70%) ISR developed in 14 patients (27.5%; stenosis, N = 10; entire CCA occlusion, N = 4). Primary patency rates were 98%, 92%, 83%, 73%, and 61% at 6, 12, 24, 60, and 96 months, respectively. Reintervention was performed in six patients (11.8%) with nonocclusive ISR. Secondary patency rates were 100% at 6 and 12 months and 96% at 24, 60, and 96 months. In-stent restenosis developed more frequently (P < .001) in patients with hyperlipidemia; primary patency rates were also significantly worse (Chi-square, 11.08; degrees of freedom, 1; P < .001) in patients with hyperlipidemia compared to those without. Conclusion Stenting of the middle/distal CCA can be performed with acceptable patency rates. If intervention is unequivocally needed, patients with hyperlipidemia will require closer follow-up care. Level of Evidence Level 3, Local non-random sample.
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Affiliation(s)
- Miklós Vértes
- Heart and Vascular Center, Semmelweis University, Városmajor Street 68, Budapest, 1122, Hungary
| | - Dat T Nguyen
- Heart and Vascular Center, Semmelweis University, Városmajor Street 68, Budapest, 1122, Hungary
| | - György Székely
- Heart and Vascular Center, Semmelweis University, Városmajor Street 68, Budapest, 1122, Hungary
| | - Ákos Bérczi
- Heart and Vascular Center, Semmelweis University, Városmajor Street 68, Budapest, 1122, Hungary
| | - Edit Dósa
- Heart and Vascular Center, Semmelweis University, Városmajor Street 68, Budapest, 1122, Hungary.
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22
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Predicting the Risk of Stroke in Chinese Internal Carotid Artery Stenosis Patients Underwent Carotid Artery Stenting: Validation and Improvement of Siena Carotid Artery Stenting Risk Score. J Stroke Cerebrovasc Dis 2019; 28:104369. [PMID: 31548086 DOI: 10.1016/j.jstrokecerebrovasdis.2019.104369] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 07/18/2019] [Accepted: 08/25/2019] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND Siena carotid artery stenting (CAS) risk score is developed based on Chinese internal carotid artery (ICA) stenosis patients recruited in Italy, whether it is equally applicable in Chinese remains unknown. We aimed to investigate Siena CAS risk score value for predicting stroke risk in ICA stenosis patients underwent CAS and explore additional factors for improving accuracy of scoring system. METHODS Totally 401 patients with ICA stenosis who underwent CAS were enrolled. The clinical data (including patient characteristics, lesion features, and procedure-related features) were collected and the Siena CAS score was calculated. Stroke incidence with 30 days was documented. RESULTS The incidence of stroke was 4.5%, and the Siena CAS score in stroke patients was higher compared with nonstroke patients, further receiver operating characteristic (ROC) curve illustrated that Siena CAS score was acceptable at predicting stroke risk with area under curve (AUC) of .743 (95%CI: .638-.848). Multivariate logistic regression model revealed that Siena CAS score and current fasting-blood glucose (FBG) greater than 7.1 mmol/l independently predicted higher stroke risk; followed ROC curve disclosed that Siena CAS score combined with current FBG greater than 7.1 mmol/l was of good value in predicting stroke risk (AUC: .770 (95%CI: .677-.863)), which was numerically increased compared with Siena CAS score alone. CONCLUSIONS Siena CAS risk scoring system exhibits to be a useful tool to predict stroke risk, and the combination of Siena CAS score and current increased FBG might be a more accurate stratification for stroke risk in Chinese ICA stenosis patients after CAS.
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23
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Shen H, Dai Z, Wang M, Gu S, Xu W, Xu G, Liu X. Preprocedural Neutrophil to Albumin Ratio Predicts In-Stent Restenosis Following Carotid Angioplasty and Stenting. J Stroke Cerebrovasc Dis 2019; 28:2442-2447. [DOI: 10.1016/j.jstrokecerebrovasdis.2019.06.027] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 05/24/2019] [Accepted: 06/22/2019] [Indexed: 12/12/2022] Open
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24
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Yao X, Dai Z, Zhang X, Gao J, Xu G, Cai Y, Li Z. Carotid Geometry as a Predictor of In-Stent Neointimal Hyperplasia - A Computational Fluid Dynamics Study. Circ J 2019; 83:1472-1479. [PMID: 31061352 DOI: 10.1253/circj.cj-18-1152] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND Carotid angioplasty and stenting (CAS) is emerging as an alternative treatment for carotid stenosis, but neointimal hyperplasia (NIH) remains a drawback of this treatment strategy. This study aimed to evaluate the effect of variations of carotid bifurcation geometry on local hemodynamics and NIH.Methods and Results:Hemodynamic and geometric effects on NIH were compared between 2 groups, by performing computational fluid dynamics (CFD) simulations both on synthetic models and patient-specific models. In the idealized models, multiple regression analysis revealed a significant negative relationship between internal carotid artery (ICA) angle and the local hemodynamics. In the patient-derived models, which were reconstructed from digital subtraction angiography (DSA) of 25 patients with bilateral CAS, a low time-average wall shear stress (TAWSS) and a high oscillatory shear index (OSI) were often found at the location of NIH. Larger difference values of the OSI percentage area (10.56±20.798% vs. -5.87±18.259%, P=0.048) and ECA/CCA diameter ratio (5.64±12.751% vs. -3.59±8.697%, P=0.047) were detected in the NIH-asymmetric group than in the NIH-symmetric group. CONCLUSIONS Changes in carotid bifurcation geometry can make apparent differences in hemodynamic distribution and lead to bilateral NIH asymmetry. It may therefore be reasonable to consider certain geometric variations as potential local risk factors for NIH.
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Affiliation(s)
- Xinke Yao
- School of Biological Science & Medical Engineering, Southeast University
| | - Zhengze Dai
- Department of Neurology, Jinling Clinical College of Nanjing Medical University.,Department of Neurology, Nanjing Pukou Hospital
| | - Xu Zhang
- School of Biological Science & Medical Engineering, Southeast University
| | - Jie Gao
- Department of Neurology, Jinling Hospital, Medical School of Nanjing University
| | - Gelin Xu
- Department of Neurology, Jinling Clinical College of Nanjing Medical University.,Department of Neurology, Jinling Hospital, Medical School of Nanjing University
| | - Yan Cai
- School of Biological Science & Medical Engineering, Southeast University
| | - Zhiyong Li
- School of Biological Science & Medical Engineering, Southeast University.,School of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology
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25
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In-stent restenosis associated with dual-layer Roadsaver carotid artery stent: a retrospective single-center study. LA RADIOLOGIA MEDICA 2019; 124:704-709. [DOI: 10.1007/s11547-019-01019-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Accepted: 02/25/2019] [Indexed: 11/26/2022]
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26
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Wangqin R, Krafft PR, Piper K, Kumar J, Xu K, Mokin M, Ren Z. Management of De Novo Carotid Stenosis and Postintervention Restenosis-Carotid Endarterectomy Versus Carotid Artery Stenting-a Review of Literature. Transl Stroke Res 2019; 10:460-474. [PMID: 30793257 DOI: 10.1007/s12975-019-00693-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 01/30/2019] [Accepted: 02/12/2019] [Indexed: 01/23/2023]
Abstract
The current literature indicates carotid endarterectomy (CEA) as the preferred treatment for symptomatic, moderate to severe carotid artery stenosis. However, recommendations for the management of acute tandem stenosis and complete occlusion, as well as postintervention restenosis of the carotid artery, remain controversial. Here, we review the literature evaluating these conditions and provide suggestions for clinical decision-making. Acute tandem stenosis or occlusion of the common and internal carotid arteries may be treated with angioplasty alone, reserving carotid artery stenting (CAS) or CEA for severe and complex cases. Patients who underwent CEA and developed ipsilateral restenosis may be subjected to angioplasty followed by CAS, which carries a lower risk of cranial nerve injury and subsequent restenosis of the artery. For post-CAS restenosis, current evidence recommends angioplasty and CAS for the management of moderate stenosis and CEA for severe stenosis of the carotid artery. Given the lack of level 1 evidence for the management of these conditions, the abovementioned recommendations may assist clinical decision-making; however, each case and its unique risks and benefits need to be assessed individually. Future studies evaluating and defining the risks and benefits of specific treatment strategies, such as CEA and CAS, in patients with acute tandem stenosis, occlusion, and postintervention restenosis of the carotid artery need to be conducted.
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Affiliation(s)
- Runqi Wangqin
- Department of Neurology, Duke University Medical Center, 2400 Pratt Street, Durham, NC, 27705, USA
| | - Paul R Krafft
- Department of Neurological Surgery, University of South Florida, 2 Tampa General Circle, Tampa, FL, 33606, USA
| | - Keaton Piper
- Department of Neurological Surgery, University of South Florida, 2 Tampa General Circle, Tampa, FL, 33606, USA
| | - Jay Kumar
- Department of Neurological Surgery, University of South Florida, 2 Tampa General Circle, Tampa, FL, 33606, USA
| | - Kaya Xu
- Department of Neurosurgery, the Affiliated Hospital of Guizhou Medical University, Guiyang, 550004, Guizhou, China
| | - Maxim Mokin
- Department of Neurological Surgery, University of South Florida, 2 Tampa General Circle, Tampa, FL, 33606, USA
| | - Zeguang Ren
- Department of Neurological Surgery, University of South Florida, 2 Tampa General Circle, Tampa, FL, 33606, USA.
- Center for Cerebrovascular Diseases, Shiyan Taihe Hospital, Shiyan, 442000, Hubei, China.
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27
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Abstract
Doppler ultrasound (US) is the primary noninvasive imaging modality for detecting, grading, and monitoring extracranial internal carotid artery (ICA) stenosis, which is a well-established surrogate marker for stroke risk. In addition, Doppler US is the primary imaging modality for surveillance of patients following carotid intervention with endarterectomy or stent placement. This article reviews the pathophysiology and epidemiology of stroke, technique for performing a carotid US examination, normal findings, and diagnostic US criteria for evaluating carotid plaque, grading stenosis in the native ICA and following intervention, as well as waveform analysis of the carotid arteries.
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Affiliation(s)
- Leslie M Scoutt
- Department of Radiology and Biomedical Imaging, Yale School of Medicine, 333 Cedar Street, PO Box 208042, New Haven, CT 06520-8042, USA.
| | - Gowthaman Gunabushanam
- Department of Radiology and Biomedical Imaging, Yale School of Medicine, 333 Cedar Street, PO Box 208042, New Haven, CT 06520-8042, USA
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28
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Systematic and Comprehensive Comparison of Incidence of Restenosis Between Carotid Endarterectomy and Carotid Artery Stenting in Patients with Atherosclerotic Carotid Stenosis. World Neurosurg 2019; 125:74-86. [PMID: 30710719 DOI: 10.1016/j.wneu.2019.01.118] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 01/20/2019] [Accepted: 01/21/2019] [Indexed: 11/22/2022]
Abstract
OBJECTIVE The purpose of the present study was to conduct a meta-analysis to systematically compare the incidence rates of in-stent restenosis after carotid artery stenting (CAS) and restenosis after carotid endarterectomy (CEA) for patients with atherosclerotic carotid stenosis. METHODS We retrieved potential academic reports comparing restenosis between CEA and CAS from the MEDLINE, PubMed, and EMBASE databases and the Cochrane Library from the date of the first CEA (January 1951) to July 20, 2018. The references of the identified studies were carefully reviewed to ensure that all available reports were included in the present study. RESULTS Our meta-analysis included 27 studies (15 randomized controlled trials, 12 nonrandomized controlled trials) and 20,479 participants with atherosclerotic carotid stenosis. A statistically significant difference was found in the cumulative incidence of restenosis >70% between CEA and CAS (risk difference, -0.033, 95% confidence interval [CI] -0.054 to -0.013; P = 0.002). For the restenosis >70% outcomes, although CEA was relevant with a lower rate of restenosis than CAS within 6 months (odds ratio [OR], 0.495; 95% CI, 0.285-0.861; P = 0.013) and 1 year (OR, 0.626; 95% CI, 0.483-0.811; P < 0.001), no statistically significant differences were found at 1.5 years (P = 0.210), 2 years (P = 0.123), 4 years (P = 0.124), 5 years (P = 0.327), or 10 years (P = 0.839). For the restenosis >50% outcomes, a significant difference was found in the rate of restenosis between the CEA and CAS groups within 1 year (OR, 0.317; 95% CI, 0.228-0.441; P < 0.001) but not at 1.5 years (P = 0.301), 2 years (P = 0.686), or 5 years (P = 0.920). No nominally significant effects were demonstrated with respect to the cumulative incidence of occlusion (P = 0.195) or the cumulative incidence of restenosis for symptomatic patients (P = 0.170) between CEA and CAS. CONCLUSIONS Although CAS was preferred over CEA, regardless of restenosis >50% or >70% after revascularization within 1 year, no significant difference was observed with extension of the follow-up period to >1 year. CAS was not associated with a greater cumulative incidence of occlusion or the cumulative incidence of restenosis for symptomatic patients.
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29
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Katano H, Nishikawa Y, Yamada H, Mase M. Calcification in original plaque and restenosis following carotid artery stenting. Surg Neurol Int 2017; 8:279. [PMID: 29279796 PMCID: PMC5705928 DOI: 10.4103/sni.sni_263_17] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Accepted: 09/13/2017] [Indexed: 12/30/2022] Open
Abstract
Background: The relationship between calcification in primary plaque and recurrent stenosis after carotid artery stenting (CAS) is not established, but an inverse association with restenosis following carotid endarterectomy (CEA) has been suggested. Methods: We retrospectively analyzed 75 plaques of 109 consecutive CAS with regard to calcification, using the calcium score and shape, location, and other characteristics of original plaques together with stenting-related factors. CAS was performed in a standard fashion with an embolic protection device. Greater-than-moderate restenosis (≥50%) was assessed by peak systolic velocity (PSV) with duplex ultrasonography (≥130 cm/s, internal/common carotid or distal/proximal PSV ratio ≥2.0). Results: Univariate analysis revealed percentages of dyslipidemia treated with statins (P = 0.03), calcification in distal ICA (P = 0.02), and immediate residual stenosis (P = 0.02) were significantly higher in patients with greater-than-moderate restenosis, whereas calcification in carotid bulb and usage of open-cell stent were rather less frequent (P < 0.001 and P = 0.02, respectively). Multivariate logistic regression analysis showed that rarity of calcification in carotid bulb was a sole independent predictor for greater-than-moderate recurrent carotid stenosis 1 year after CAS (OR = 0.21, CI = 0.06–0.77, P = 0.02). Conclusions: Calcium score was not significantly related to restenosis at 1 year after CAS, as was previously found following CEA, though scarcity of calcification in carotid bulb was suggested as a predictor of in-stent restenosis. Compared to post-CEA restenosis, carotid plaque calcification may be inversely but tenuously associated with recurrent stenosis 1 year post-CAS. No other stenting factors (e.g., stent design, pre-/post-dilation, or protection devices) showed a significant association with recurrent stenosis post-CAS.
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Affiliation(s)
- Hiroyuki Katano
- Department of Neurosurgery, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya 467-8601, Japan.,Department of Medical informatics and Integrative Medicine, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya 467-8601, Japan
| | - Yusuke Nishikawa
- Department of Neurosurgery, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya 467-8601, Japan
| | - Hiroshi Yamada
- Department of Neurosurgery, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya 467-8601, Japan
| | - Mitsuhito Mase
- Department of Neurosurgery, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya 467-8601, Japan
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