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Ginanni Corradini L, Maresca L, Lucatelli P, Balocco S, D'Onofrio A, Stefanini M. The role of post-dilatation in carotid MicroNet-covered stent implantation, evaluated using 3D cone-beam CT angiography. THE JOURNAL OF CARDIOVASCULAR SURGERY 2023; 64:608-614. [PMID: 38015552 DOI: 10.23736/s0021-9509.23.12756-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
BACKGROUND This study aims to assess the role and safety of post-dilatation in protected carotid artery stenting (PCAS) using the new MicroNet-covered 2nd-generation stent assessed by cone beam CT scans. METHODS From March 2020 to March 2022, patients were enrolled in the study according to CT angiography results based on the following criteria: Evidence of 70% to 99% carotid stenosis in asymptomatic patients and 50% to 99% in symptomatic patients, per the NASCET index. Using a FilterWire EZ™ (Boston Scientific, Natick, MA, USA) embolic protection system (EPS), MicroNet-covered stent PCAS was performed by two interventional radiologists with at least 8 years of experience in endovascular intervention. Each patient underwent post-dilatation following stent placement. Finally, a third radiologist (not participating in the interventional procedures) evaluated the cone beam CT scans and calculated residual stenosis. Major and minor complications were recorded in the 30 days following the procedure. RESULTS A total of 192 patients (121 male, mean age 73±10 years) were included in the study, and all patients received post-dilatation following stent implantation. Technical successes were achieved in all procedures. Adverse events noted in this study were limited to periprocedural transient ischemic attacks that occurred in three out of 192 patients (1.6%) and showed a swift complete recovery. The post-dilatation balloon diameters used in the study were: 5.0 mm (30.3%), 5.5 mm (39.3%) and 6 mm (30.3%). Optimized postdilatation resulted in a significant increase in the final luminal area. Similar improvements were observed in all subtypes of plaque. CONCLUSIONS Post-dilatation in protected CAS is safe and induces a significant improvement in the cross-sectional area regardless of the stenotic plaque.
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Affiliation(s)
| | - Luciano Maresca
- Department of Radiology and Interventional Radiology, Casilino Hospital, Rome, Italy
| | | | - Simone Balocco
- Department of Mathematics and Informatics, University of Barcelona, Barcelona, Spain
- Computer Vision Center, Bellaterra, Spain
| | - Adolfo D'Onofrio
- Department of Radiology and Interventional Radiology, Casilino Hospital, Rome, Italy
| | - Matteo Stefanini
- Department of Radiology and Interventional Radiology, Casilino Hospital, Rome, Italy
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Roh J, Baik SK, Yeom JA, Park KP, Ahn SH, Park MG. Usefulness of cone-beam computed tomography to predict residual stenosis after carotid artery stenting. Interv Neuroradiol 2022:15910199221143259. [PMID: 36523192 DOI: 10.1177/15910199221143259] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2024] Open
Abstract
OBJECTIVES The long-term durability of carotid artery stenting (CAS) may be determined by various factors; however, residual stenosis is a known risk factor for in-stent restenosis. The authors of this article utilized cone-beam computed tomography (CBCT) in angiosuite to investigate plaque features affecting the character and quality of stent expansion after CAS. METHODS Forty-two CAS cases with both pre- and post-CAS CBCT evaluations were included in this retrospective analysis. Five features derived from pre-CAS images were tested: (1) eccentricity, (2) overballoon, (3) maximum plaque thickness, (4) calcification barrier, and (5) stenotic degree. For post-CAS CBCT, stent configuration was assessed if the stent was expanded and oval or round in shape as well as outward or inward in orientation. Variables were tested if they were associated with oval expansion, outward expansion, and 20% residual stenosis after CAS. RESULTS Oval or outward expansion is directly related to residual stenosis. The oval expansion was associated with maximum plaque thickness, and outward expansion was associated with the presence of a calcification barrier. Variables related to > 20% residual stenosis were the maximum plaque thickness, calcification barrier, and pre-CAS stenotic degree. CONCLUSIONS CBCT for carotid stenosis may provide valuable information about plaque features, especially calcification features that may interfere with the angioplasty effect, as well as the characteristics and quality of stent expansion. Residual stenosis > 20% was associated with calcification barrier, maximum plaque thickness, and pre-CAS stenotic degree.
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Affiliation(s)
- Jieun Roh
- Department of Radiology, 194197Pusan National University Yangsan Hospital, Yangsan-si, South Korea
| | - Seung Kug Baik
- Department of Radiology, 194197Pusan National University Yangsan Hospital, Yangsan-si, South Korea
| | - Jeong A Yeom
- Department of Radiology, 194197Pusan National University Yangsan Hospital, Yangsan-si, South Korea
| | - Kyung-Pil Park
- Department of Neurology, 194197Pusan National University Yangsan Hospital, Yangsan-si, South Korea
| | - Sung-Ho Ahn
- Department of Neurology, 194197Pusan National University Yangsan Hospital, Yangsan-si, South Korea
| | - Min-Gyu Park
- Department of Neurology, 194197Pusan National University Yangsan Hospital, Yangsan-si, South Korea
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Mazurek A, Malinowski K, Rosenfield K, Capoccia L, Speziale F, de Donato G, Setacci C, Wissgott C, Sirignano P, Tekieli L, Karpenko A, Kuczmik W, Stabile E, Metzger DC, Amor M, Siddiqui AH, Micari A, Pieniążek P, Cremonesi A, Schofer J, Schmidt A, Musialek P. Clinical Outcomes of Second- versus First-Generation Carotid Stents: A Systematic Review and Meta-Analysis. J Clin Med 2022; 11:jcm11164819. [PMID: 36013058 PMCID: PMC9409706 DOI: 10.3390/jcm11164819] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Revised: 07/20/2022] [Accepted: 07/29/2022] [Indexed: 01/10/2023] Open
Abstract
Background: Single-cohort studies suggest that second-generation stents (SGS; “mesh stents”) may improve carotid artery stenting (CAS) outcomes by limiting peri- and postprocedural cerebral embolism. SGS differ in the stent frame construction, mesh material, and design, as well as in mesh-to-frame position (inside/outside). Objectives: To compare clinical outcomes of SGS in relation to first-generation stents (FGSs; single-layer) in CAS. Methods: We performed a systematic review and meta-analysis of clinical studies with FGSs and SGS (PRISMA methodology, 3302 records). Endpoints were 30-day death, stroke, myocardial infarction (DSM), and 12-month ipsilateral stroke (IS) and restenosis (ISR). A random-effect model was applied. Results: Data of 68,422 patients from 112 eligible studies (68.2% men, 44.9% symptomatic) were meta-analyzed. Thirty-day DSM was 1.30% vs. 4.11% (p < 0.01, data for SGS vs. FGS). Among SGS, both Casper/Roadsaver and CGuard reduced 30-day DSM (by 2.78 and 3.03 absolute percent, p = 0.02 and p < 0.001), whereas the Gore stent was neutral. SGSs significantly improved outcomes compared with closed-cell FGS (30-day stroke 0.6% vs. 2.32%, p = 0.014; DSM 1.3% vs. 3.15%, p < 0.01). At 12 months, in relation to FGS, Casper/Roadsaver reduced IS (−3.25%, p < 0.05) but increased ISR (+3.19%, p = 0.04), CGuard showed a reduction in both IS and ISR (−3.13%, −3.63%; p = 0.01, p < 0.01), whereas the Gore stent was neutral. Conclusions: Pooled SGS use was associated with improved short- and long-term clinical results of CAS. Individual SGS types, however, differed significantly in their outcomes, indicating a lack of a “mesh stent” class effect. Findings from this meta-analysis may provide clinically relevant information in anticipation of large-scale randomized trials.
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Affiliation(s)
- Adam Mazurek
- Department of Cardiac and Vascular Diseases, John Paul II Hospital, Jagiellonian University, 31-202 Krakow, Poland
- Correspondence: (A.M.); (P.M.)
| | - Krzysztof Malinowski
- Department of Bioinformatics and Telemedicine, Faculty of Medicine, Jagiellonian University Medical College, 31-008 Krakow, Poland
| | - Kenneth Rosenfield
- Vascular Surgery, Surgery Department, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Laura Capoccia
- Vascular and Endovascular Surgery Unit, Department of Surgery, Sapienza University of Rome, 00185 Rome, Italy
| | - Francesco Speziale
- Vascular and Endovascular Surgery Unit, Department of Surgery, Sapienza University of Rome, 00185 Rome, Italy
| | | | - Carlo Setacci
- Department of Vascular Surgery, University of Siena, 53100 Siena, Italy
| | - Christian Wissgott
- Institut für Diagnostische und Interventionelle Radiologie/Neuroradiologie, Imland Klinik Rendsburg, 24768 Rendsburg, Germany
| | - Pasqualino Sirignano
- Vascular and Endovascular Surgery Unit, Department of Surgery, Sapienza University of Rome, 00185 Rome, Italy
| | - Lukasz Tekieli
- Department of Interventional Cardiology, John Paul II Hospital, Jagiellonian University, 31-202 Krakow, Poland
| | - Andrey Karpenko
- Centre of Vascular and Hybrid Surgery, E.N. Meshalkin National Medical Research Center, 630055 Novosibirsk, Russia
| | - Waclaw Kuczmik
- Department of General, Vascular Surgery, Angiology and Phlebology, Medical University of Silesia, 40-055 Katowice, Poland
| | | | | | - Max Amor
- Department of Interventional Cardiology, U.C.C.I. Polyclinique d’Essey, 54270 Nancy, France
| | - Adnan H. Siddiqui
- Department of Neurosurgery, SUNY University at Buffalo, Buffalo, NY 14203, USA
| | - Antonio Micari
- Department of Biomedical and Dental Sciences and Morphological and Functional Imaging, University of Messina, 98122 Messina, Italy
| | - Piotr Pieniążek
- Department of Cardiac and Vascular Diseases, John Paul II Hospital, Jagiellonian University, 31-202 Krakow, Poland
- Department of Interventional Cardiology, John Paul II Hospital, Jagiellonian University, 31-202 Krakow, Poland
| | - Alberto Cremonesi
- Cardiovascular Department, Humanitas Gavazzeni Hospital, 24125 Bergamo, Italy
| | - Joachim Schofer
- MVZ-Department Structural Heart Disease, Asklepios Clinic St. Georg, 20099 Hamburg, Germany
| | - Andrej Schmidt
- Department of Angiology, University Hospital Leipzig, 04103 Leipzig, Germany
| | - Piotr Musialek
- Department of Cardiac and Vascular Diseases, John Paul II Hospital, Jagiellonian University, 31-202 Krakow, Poland
- Correspondence: (A.M.); (P.M.)
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Mazurek A, Borratynska A, Gancarczyk U, Czyz L, Sikorska M, Tekieli L, Sobien B, Jakiel M, Trystula M, Drazkiewicz T, Podolec P, Musialek P. Diabetes Mellitus and Clinical Outcomes in Carotid Artery Revascularization Using Second-Generation, MicroNet-Covered Stents: Analysis from the PARADIGM Study. J Diabetes Res 2022; 2022:8691842. [PMID: 36200003 PMCID: PMC9529505 DOI: 10.1155/2022/8691842] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 06/16/2022] [Accepted: 08/12/2022] [Indexed: 11/18/2022] Open
Abstract
INTRODUCTION Carotid artery stenting (CAS) using conventional (single-layer) stents is associated with worse clinical outcomes in diabetes mellitus (DM) vs. non-DM patients: an effect driven largely by lesion-related adverse events. CAS outcomes with MicroNet-covered stents (MCS) in diabetic patients have not been evaluated. AIM To compare short- and long-term clinical outcomes and restenosis rate in DM vs. non-DM patients with carotid stenosis treated using MCS. MATERIALS AND METHODS In a prospective study in all-comer symptomatic and increased-stroke-risk asymptomatic carotid stenosis, 101 consecutive patients (age 51-86 years, 41% diabetics) underwent 106 MCS-CAS. Clinical outcomes and duplex ultrasound velocities were assessed periprocedurally and at 30 days/12 months. RESULTS Baseline characteristics of DM vs. non-DM patients were similar except for a higher prevalence of recent cerebral symptoms in DM. Type 1 and type 1+2 plaques were more prevalent in DM patients (26.7% vs. 9.8%, p = 0.02; 62.2% vs. 37.7%, p = 0.01). Proximal embolic protection was more prevalent in DM (60% vs. 36%; p = 0.015). 30-day clinical complications were limited to a single periprocedural minor stroke in DM (2.4% vs. 0%, p = 0.22). 12-month in-stent velocities and clinical outcomes were not different (death rate 4.8% vs. 3.3%; p = 0.69; no new strokes). Restenosis rate was not different (0% vs. 1.7%, p = 0.22). CONCLUSIONS MCS may offset the adverse impact of DM on periprocedural, 30-day, and 12-month clinical complications of CAS and minimize the risk of in-stent restenosis. In this increased-stroke-risk cohort, adverse event rate was low both in DM and non-DM. Further larger-scale clinical datasets including extended follow-ups are warranted.
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Affiliation(s)
- Adam Mazurek
- Jagiellonian University, Department of Cardiac & Vascular Diseases, John Paul II Hospital, Krakow, Poland
| | - Anna Borratynska
- John Paul II Hospital, Neurology Outpatient Department, Krakow, Poland
| | - Urszula Gancarczyk
- Jagiellonian University, Department of Cardiac & Vascular Diseases, John Paul II Hospital, Krakow, Poland
| | - Lukasz Czyz
- Jagiellonian University, Department of Cardiac & Vascular Diseases, John Paul II Hospital, Krakow, Poland
| | - Martyna Sikorska
- Jagiellonian University, Department of Cardiac & Vascular Diseases, John Paul II Hospital, Krakow, Poland
| | - Lukasz Tekieli
- Jagiellonian University, Department of Cardiac & Vascular Diseases, John Paul II Hospital, Krakow, Poland
- Jagiellonian University, Department of Interventional Cardiology, John Paul II Hospital, Krakow, Poland
| | - Bartosz Sobien
- Jagiellonian University, Department of Cardiac & Vascular Diseases, John Paul II Hospital, Krakow, Poland
| | - Marcin Jakiel
- Jagiellonian University, Department of Cardiac & Vascular Diseases, John Paul II Hospital, Krakow, Poland
| | - Mariusz Trystula
- John Paul II Hospital, Department of Vascular Surgery, Krakow, Poland
| | | | - Piotr Podolec
- Jagiellonian University, Department of Cardiac & Vascular Diseases, John Paul II Hospital, Krakow, Poland
| | - Piotr Musialek
- Jagiellonian University, Department of Cardiac & Vascular Diseases, John Paul II Hospital, Krakow, Poland
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de Vries EE, Meershoek AJA, Vonken EJ, den Ruijter HM, van den Berg JC, de Borst GJ. A meta-analysis of the effect of stent design on clinical and radiologic outcomes of carotid artery stenting. J Vasc Surg 2019; 69:1952-1961.e1. [PMID: 31159989 DOI: 10.1016/j.jvs.2018.11.017] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Accepted: 11/10/2018] [Indexed: 11/25/2022]
Abstract
OBJECTIVE Procedural characteristics, including stent design, may influence the outcome of carotid artery stenting (CAS). A thorough comparison of the effect of stent design on outcome of CAS is thus warranted to allow for optimal evidence-based clinical decision making. This study sought to evaluate the effect of stent design on clinical and radiologic outcomes of CAS. METHODS A systematic search was conducted in MEDLINE, Embase, and Cochrane databases in May 2018. Included were articles reporting on the occurrence of clinical short- and intermediate-term major adverse events (MAEs; any stroke or death) or radiologic adverse events (new ischemic lesions on postprocedural magnetic resonance diffusion-weighted imaging [MR-DWI], restenosis, or stent fracture) in different stent designs used to treat carotid artery stenosis. Random effects models were used to calculate combined overall effect sizes. Metaregression was performed to identify the effect of specific stents on MAE rates. RESULTS From 2654 unique identified articles, two randomized, controlled trials and 66 cohort studies were eligible for analysis (including 46,728 procedures). Short-term clinical MAE rates were similar for patients treated with open cell vs closed cell or hybrid stents. Use of an Acculink stent was associated with a higher risk of short-term MAE compared with a Wallstent (risk ratio [RR], 1.51; P = .03), as was true for use of Precise stent vs Xact stent (RR, 1.55; P < .001). Intermediate-term clinical MAE rates were similar for open vs closed cell stents. Use of open cell stents predisposed to a 25% higher chance (RR, 1.25; P = .03) of developing postprocedural new ischemic lesions on MR-DWI. No differences were observed in the incidence of restenosis, stent fracture, or intraprocedural hemodynamic depression with respect to different stent design. CONCLUSIONS Stent design is not associated with short- or intermediate-term clinical MAE rates in patients undergoing CAS. Furthermore, the division in open and closed cell stent design might conceal true differences in single stent efficacy. Nevertheless, open cell stenting resulted in a significantly higher number of subclinical postprocedural new ischemic lesions detected on MR-DWI compared with closed cell stenting. An individualized patient data meta-analysis, including future studies with prospective homogenous study design, is required to adequately correct for known risk factors and to provide definite conclusions with respect to carotid stent design for specific subgroups.
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Affiliation(s)
- Evelien E de Vries
- Department of Vascular Surgery, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Armelle J A Meershoek
- Department of Vascular Surgery, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Evert J Vonken
- Department of Radiology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Hester M den Ruijter
- Experimental Cardiology Laboratory, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Jos C van den Berg
- Centro Vascolare Ticino, Ospedale Regionale di Lugano, Lugano, Switzerland; Universitätsinstitut für Diagnostische, Interventionelle und Pädiatrische Radiologie, Inselspital, University of Bern, Bern, Switzerland
| | - Gert J de Borst
- Department of Vascular Surgery, University Medical Center Utrecht, Utrecht, The Netherlands.
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Hung CS, Yeh CF, Lin MS, Chen YH, Huang CC, Li HY, Kao HL. Impact of hospital volume on long-term neurological outcome in patients undergoing carotid artery stenting. Catheter Cardiovasc Interv 2017; 89:1242-1249. [PMID: 28296028 DOI: 10.1002/ccd.26989] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Accepted: 01/28/2017] [Indexed: 11/10/2022]
Abstract
BACKGROUND The impact of hospital volume on long-term outcome after carotid artery stenting (CAS) remains unknown. OBJECTIVES We designed a nationwide cohort study to elucidate the impact of hospital volume on the incidence of stroke after CAS. METHODS The Taiwan National Health Insurance Research database was used to identify all patients admitted for CAS from 2008 to 2012. We defined high-volume hospitals as those performing more than 20 CAS per year. The primary outcome was new ischemic stroke after discharging from the index CAS. Propensity score-matching was performed to create two matched groups for comparison. RESULTS A total of 3,248 patients underwent 3,576 CAS procedures were enrolled. There were 56 hospitals performing CAS during the study period. Among these 3,248 patients, 2,226 (68.5%) were performed in high-volume hospitals. A propensity score-matching created two groups with 1,000 patients in each group. During a median of 2.06 years follow-up, 35 (3.5%) and 52 (5.2%) patients in high-volume hospitals and low-volume hospitals developed new ischemic stroke 30 days after discharging from the index CAS, respectively (for low-volume hospitals, HR 1.50, 95%CI 1.06-2.12, P = 0.023). The use of embolic protection device did not result in different periprocedural or postdischarge strokes. The periprocedural (within 30 days after CAS) ischemic stroke or all-cause mortality rates during follow-up period were similar between two groups. CONCLUSIONS CAS performed in high-volume hospitals was associated with less new ischemic stroke after discharging from the index CAS, compared to those in low-volume hospitals. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Chi-Sheng Hung
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Chih-Fan Yeh
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Mao-Shin Lin
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Ying-Hsien Chen
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Ching-Chang Huang
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Hung-Yuan Li
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Hsien-Li Kao
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
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Natural History and Management of Blunt Traumatic Pseudoaneurysms of the Internal Carotid Artery: The Harborview Algorithm Based Off a 10-Year Experience. Ann Surg 2016; 263:821-6. [PMID: 25692360 DOI: 10.1097/sla.0000000000001158] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To define the natural history of, and treatment strategy for, blunt traumatic internal carotid artery (ICA) pseudoaneurysms. BACKGROUND The natural history and management of traumatic ICA pseudoaneurysms is controversial. METHODS We retrospectively identified all traumatic ICA pseudoaneurysms diagnosed on head/neck computed tomographic angiography at a high-volume trauma center over a 10-year period. Radiographic and clinical data were recorded, and a treatment algorithm was derived. RESULTS Forty-three pseudoaneurysms were diagnosed in 39 patients. All patients were treated with daily aspirin unless contraindicated, and 82% underwent daily transcranial Doppler ultrasonography with embolic monitoring. A rate of 8 or more emboli per hour was predictive of embolic stroke (P = 0.0076). Acute ischemic or embolic stroke was seen in 7 patients (16%) with an overall mortality in this subpopulation of 42% (n = 3). Four patients (9%) underwent acute surgical treatment (parent vessel sacrifice and/or arterial bypass) for ongoing ischemia. Long-term radiographic and clinical follow-up was obtained for 36 surviving patients (mean = 8 months; range: 1 week-5 years), all of whom were maintained on daily aspirin. No delayed ischemic or embolic events were reported. For ICA pseudoaneurysms treated with aspirin and observation alone, 9 (28%) increased in size, 17 (53%) decreased or stabilized, and 6 (19%) resolved. Enlargement of 5 mm or more in maximal diameter underwent delayed endovascular treatment with a 100% obliteration rate and no complications. CONCLUSIONS Traumatic ICA pseudoaneurysms are safely treated with daily aspirin, embolic monitoring, and radiographic surveillance. Acute stroke or hemorrhage, or delayed radiographic progression, are indications for endovascular or surgical treatment.
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Hung CS, Lin MS, Chen YH, Huang CC, Li HY, Kao HL. Prognostic Factors for Neurologic Outcome in Patients with Carotid Artery Stenting. ACTA CARDIOLOGICA SINICA 2016; 32:205-14. [PMID: 27122951 PMCID: PMC4816919 DOI: 10.6515/acs20150119h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Accepted: 01/19/2015] [Indexed: 11/23/2022]
Abstract
BACKGROUND Carotid artery stenting (CAS) is a valid treatment for patients with carotid artery stenosis. The long-term outcome and prognostic factors in Asian population after CAS are not clear. This study aimed to identify the prognostic factors among Asian patients who have undergone CAS. METHODS We retrospectively analyzed 246 patients with CAS. Annual carotid duplex ultrasound was used to identify restenosis. Peri-procedural complications, restenosis, neurologic outcomes, and mortality were recorded. Cox regression analyses were used to identify prognostic factors. RESULTS The mean follow-up time was 49.2 months. Procedural success was achieved in 237 patients (98.3%), and protection devices were used in 208 patients (84.5%). Within 30 days of CAS, 13 (4.3% per procedure) peri-procedural complications occurred. During the follow-up period, 24 (9.7%) patients developed restenosis, and 37 (15.0%) developed ischemic strokes. In a multiple logistic regression analysis, head and neck radiotherapy [hazard ratio (HR) = 9.9, 95% confidence interval (CI), 3.38-29.1, p < .001], stent diameter (HR = 0.72, 95% CI, 0.58-0.89, p = .003), and predilatation (HR = 3.08 95% CI, 1.21-7.81, p = .018) were independent predictors for restenosis. In Cox regression analysis, hypercholesterolemia (HR = 0.25, 95% CI, 0.07-0.94, p = .04), head and neck radiotherapy (HR = 6.2, 95% CI, 1.8-21.3, p = .004), and restenosis (HR = 3.6, 95% CI, 1.1-11.18, p = .04) were predictors for recurrent ipsilateral ischemic stroke. CONCLUSIONS CAS provides reliable long-term results in Asian patients with carotid stenosis. Restenosis is associated with an increased rate of recurrent stroke and should be monitored carefully following CAS. KEY WORDS Carotid artery disease • Prognosis • Cerebrovascular disease.
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Affiliation(s)
- Chi-Sheng Hung
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Mao-Shin Lin
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Ying-Hsien Chen
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Ching-Chang Huang
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Hung-Yuan Li
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Hsien-Li Kao
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
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Jalbert JJ, Gerhard-Herman MD, Nguyen LL, Jaff MR, Kumamaru H, Williams LA, Chen CY, Liu J, Seeger JD, Rothman AT, Schneider P, Brott TG, Tsai TT, Aronow HD, Johnston JA, Setoguchi S. Relationship Between Physician and Hospital Procedure Volume and Mortality After Carotid Artery Stenting Among Medicare Beneficiaries. Circ Cardiovasc Qual Outcomes 2015; 8:S81-9. [DOI: 10.1161/circoutcomes.114.001668] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Quality of Life and Functional Status After Carotid Revascularisation: A Systematic Review and Meta-Analysis. Eur J Vasc Endovasc Surg 2015; 49:634-645. [DOI: 10.1016/j.ejvs.2015.03.020] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2014] [Accepted: 03/05/2015] [Indexed: 11/20/2022]
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Surgical Treatment for Carotid Stenoses with Highly Calcified Plaques. J Stroke Cerebrovasc Dis 2014; 23:148-54. [PMID: 23273787 DOI: 10.1016/j.jstrokecerebrovasdis.2012.11.019] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2012] [Revised: 11/24/2012] [Accepted: 11/28/2012] [Indexed: 11/21/2022] Open
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Abstract
PURPOSE OF REVIEW Carotid endarterectomy (CEA) has been shown to prevent stroke in patients with severe carotid stenosis. Carotid artery stenting (CAS) has emerged as a less invasive alternative technique. Data regarding comparative effectiveness of CAS and CEA are now available and merit review. RECENT FINDINGS Four large randomized controlled trials (RCTs) comparing CAS and CEA have shown a higher rate of stroke in symptomatic patients. The largest and most recent trial reported a lower occurrence of myocardial infarction (MI) following CAS and showed overall comparability of CAS to CEA for both symptomatic and asymptomatic patients. Despite methodological differences, these RCTs are consistent in finding an interaction of patient age with outcomes. In younger patients, CAS appears equivalent or superior to CEA if considering the sum of death, stroke, and MI. In elderly patients, CEA appears to have a lower complication rate. For asymptomatic patients, reduction in event rates with current medical therapy may render previous trial results invalid. SUMMARY CAS is an alternative to CEA in patients requiring carotid intervention. Comparison of both CAS and CEA with contemporary medical management will also be required before recommendations can be made regarding the optimal treatment of patients with asymptomatic carotid stenoses.
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Clinical impact and predictors of carotid artery in-stent restenosis. J Neurol 2012; 259:1896-902. [PMID: 22318354 PMCID: PMC3432778 DOI: 10.1007/s00415-012-6436-3] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2012] [Revised: 01/16/2012] [Accepted: 01/20/2012] [Indexed: 10/29/2022]
Abstract
To assess the incidence and clinical significance as well as predictors of in-stent restenosis (ISR) after carotid artery stenting (CAS) diagnosed with serial duplex sonography investigations. We analyzed 215 CAS procedures that had clinical and serial carotid duplex ultrasound investigations. The incidence of in-stent restenosis (ISR) and periprocedural as well as long-term clinical complications were recorded. The influence of an ISR on clinical complication was analyzed using Kaplan-Meier curves and clinical risk factors for the development of an ISR with multivariate logistic regression. During a median follow-up time of 33.4 months (interquartile range 15.3-53.7) an ISR of ≥70% was detected in 12 (6.1%) of 215 arteries (mean age of 68.1 ± 9.8 years, 71.6% male). The combined stroke and death rate during long-term follow-up was significantly higher in the group with an ISR [odds ratio (OR): 3.59, 95% confidence interval (CI): 1.50-8.59, p = 0.004]. After applying multivariate logistic regression analysis contralateral carotid occlusion (OR 10.11, 95% CI 2.06-49.63, p = 0.004), carotid endarterectomy (CEA) restenosis (OR 8.87, 95% CI 1.68-46.84, p = 0.010) and postprocedural carotid duplex ultrasound with a PSV ≥120 cm/s (OR 6.33, 95% CI 1.27-31.44, p = 0.024) were independent predictors of ISR. ISR after CAS during long-term follow-up is associated with a higher proportion of clinical complications. A close follow-up is suggested especially in those patients with the aforementioned independent predictors of an ISR. Against the background of a lacking established treatment of ISR, these findings should be taken into account when offering CAS as a treatment alternative to CEA.
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Nolz R, Wibmer A, Beitzke D, Gentzsch S, Willfort-Ehringer A, Lammer J, Thurnher M, Schoder M. Carotid artery stenting and follow-up: Value of 64-MSCT angiography as complementary imaging method to color-coded duplex sonography. Eur J Radiol 2012; 81:89-94. [DOI: 10.1016/j.ejrad.2010.12.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2010] [Revised: 12/01/2010] [Accepted: 12/02/2010] [Indexed: 10/18/2022]
Affiliation(s)
- Richard Nolz
- Department of Radiology, Division of Cardiovascular and Interventional Radiology, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria.
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Schwarzmaier-D'Assie A, Nyolczas N, Hemetsberger R, Strehblow C, Matiasek J, Farhan S, Petrasi Z, Huber K, Wojta J, Glogar D, Plass C, Gyöngyösi M, Karnik R. Comparison of short- and long-term results of drug-eluting vs. bare metal stenting in the porcine internal carotid artery. J Endovasc Ther 2011; 18:547-58. [PMID: 21861747 DOI: 10.1583/10-3347.1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
PURPOSE To evaluate the development of neointimal hyperplasia after implantation of drug-eluting stents (paclitaxel) compared to bare metal stents in porcine internal carotid arteries (ICAs). METHODS While drug-eluting stents have effectively reduced neointimal proliferation in porcine external carotid arteries, the porcine internal carotid artery (ICA) is more sensitive to shear stress and altered flow conditions. Thus, a study was conducted to evaluate bare vs. drug-eluting stents in porcine ICAs. Under general anesthesia, 18 domestic pigs were implanted with paclitaxel-eluting (n = 18) and bare (n = 18) stents in the left and right ICAs, respectively. After 1 and 3 months, control carotid angiography was performed, followed by histopathological and histomorphometric analyses of the stented ICA. RESULTS Histopathological results (fibrin deposition, necrosis, inflammation) were similar in the groups at 1 and 3 months. Moreover, the injury score and rate of endothelialization did not differ between the groups. Histomorphometric analysis after 1 month revealed significantly (p<0.05) less neointimal hyperplasia after implantation of paclitaxel-eluting stents. The antiproliferative effect of paclitaxel-eluting stents were maintained during the 3-month follow-up: the neointimal area was 0.7 ± 0.5 vs. 1.2 ± 0.6 mm(2) (p<0.01), the area stenosis was 23.5% ± 13.9% vs. 37.8% ± 14.4% (p<0.01), the maximal neointimal thickness was 0.2 ± 0.1 vs. 0.2 ± 0.9 mm (p<0.05) in paclitaxel-eluting vs. bare stents, respectively. Implantation of paclitaxel-eluting and bare stents did not lead to edge restenosis or vessel remodeling in porcine ICAs at 1 or 3 months. CONCLUSION Compared to bare metal stents, drug-eluting stents implanted in the porcine ICA produced significantly less neointimal hyperplasia.
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Abstract
In the study of carotid arteries, modern techniques of imaging allow to analyze various alterations beyond simple luminal narrowing, including the morphology of atherosclerotic plaques, the arterial wall and the surrounding structures. By using CTA and MRI it is possible to obtain three-dimensional rendering of anatomic structures with excellent detail for treatment planning. This paper will detail the role of various imaging methods for the assessment of carotid artery pathology with emphasis on the detection, analysis and characterization of carotid atherosclerosis.
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Veselka J, Zimolová P, Špaček M, Hájek P, Malý M, Tomašov P, Martinkovičová L, Zemánek D. Comparison of carotid artery stenting in patients with single versus bilateral carotid artery disease and factors affecting midterm outcome. Ann Vasc Surg 2011; 25:796-804. [PMID: 21530157 DOI: 10.1016/j.avsg.2011.02.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2010] [Revised: 12/29/2010] [Accepted: 02/08/2011] [Indexed: 12/22/2022]
Abstract
BACKGROUND Carotid artery stenting (CAS) is the method of choice for carotid artery revascularization of patients at high risk for carotid endarterectomy. In this study, we compared the midterm results of CAS in patients with unilateral versus bilateral carotid artery disease. METHODS AND RESULTS This is a retrospective analysis of 1-year outcome of 273 consecutive patients in whom 342 CAS procedures were performed. The incidence of periprocedural transient ischemic attacks (TIAs) differed significantly (8% vs. 1%; p = 0.01) among patients with and without bilateral internal carotid disease, and a tendency to a lower occurrence of early adverse events (death, stroke, periprocedural TIA, periprocedural myocardial infarction) was subsequently shown (11% vs. 5%; p = 0.12). At 1-year follow-up, there was a high incidence of adverse events (death, stroke, periprocedural TIA, periprocedural myocardial infarction, restenosis) in patients with bilateral carotid artery disease (40% vs. 14%; p < 0.01), which was mainly driven by a higher incidence of death, periprocedural TIA, and restenosis (p ≤ 0.02 for all). According to multivariate analysis, the independent predictors of midterm adverse events were left ventricular dysfunction, male gender, bilateral carotid artery disease, renal insufficiency, cerebral symptoms within the last 6 months before the intervention, and low-density lipoprotein cholesterol level. CONCLUSIONS At midterm follow-up, patients with bilateral carotid artery disease treated by CAS have significantly more adverse events than those with unilateral disease.
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Affiliation(s)
- Josef Veselka
- Department of Cardiology, Cardiovascular Center, University Hospital Motol, 2nd Medical School, Charles University, Prague, Czech Republic.
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De Rango P, Parlani G, Verzini F, Giordano G, Panuccio G, Barbante M, Cao P. Long-Term Prevention of Stroke. J Am Coll Cardiol 2011; 57:664-71. [DOI: 10.1016/j.jacc.2010.09.041] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2010] [Revised: 09/16/2010] [Accepted: 09/16/2010] [Indexed: 10/18/2022]
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Ielasi A, Latib A, Godino C, Sharp ASP, Al Lamee R, Montorfano M, Airoldi F, Carlino M, Chieffo A, Sangiorgi GM, Colombo A. Clinical Outcomes Following Protected Carotid Artery Stenting in Symptomatic and Asymptomatic Patients. J Endovasc Ther 2010; 17:298-307. [DOI: 10.1583/09-2997.1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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