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Zhao Y, Lu J, Zhang H, Li T, Song D, Guan S, Maimaitili A, Wang Y, Feng W, Wang Y, Wan J, Mao G, Shi H, Yang X, Liu J, Zhao Y. Pipeline Embolization Device for intracranial aneurysms presenting with mass effect: a large Chinese cohort. Stroke Vasc Neurol 2024; 9:50-58. [PMID: 37295810 PMCID: PMC10956105 DOI: 10.1136/svn-2022-002213] [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: 12/02/2022] [Accepted: 05/18/2023] [Indexed: 06/12/2023] Open
Abstract
BACKGROUND Unruptured intracranial aneurysm treatment aims to reduce the risk of aneurysm rupture and bleeding, relieves symptoms and improve the quality of life for patients. This study aimed to assess the safety and efficacy of Pipeline Embolization Device (PED, Covidien/Medtronic, Irvine, CA) treatment for intracranial aneurysms presenting with mass effect in real-world settings. METHODS We selected patients from the PED in China Post-Market Multi-Center Registry Study with mass effect presentation. The study endpoints included postoperative mass effect deterioration and mass effect relief at follow-up (3-36 months). We conducted multivariate analysis to identify factors associated with mass effect relief. Subgroup analyses by aneurysm location, size and form were also performed. RESULTS This study included 218 patients with a mean age of 54.3±11.8 years and a female predominance of 74.0% (162/218). The postoperative mass effect deterioration rate was 9.6% (21/218). During a median follow-up period of 8.4 months, the mass effect relief rate was 71.6% (156/218). Notably, immediate aneurysm occlusion following treatment was significantly associated with mass effect relief (OR 0.392, 95% CI, 0.170 to 0.907, p=0.029). Subgroup analysis demonstrated that adjunctive coiling contributed to mass effect relief in cavernous aneurysms, while dense embolism impeded symptom relief in aneurysms<10 mm and saccular aneurysms. CONCLUSIONS Our data confirmed the efficacy of PED in relieving mass effect. The findings of this study provide support for endovascular treatment to alleviate mass effect in unruptured intracranial aneurysms. TRIAL REGISTRATION NUMBER NCT03831672.
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Affiliation(s)
- Yang Zhao
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- Department of Neurosurgery, Peking University International Hospital, Beijing, China
| | - Junlin Lu
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Hongqi Zhang
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Tianxiao Li
- Department of Interventional Neuroradiology, Zhengzhou University People's Hospital, Zhengzhou, Henan, China
| | - Donglei Song
- Department of Neurosurgery, Shanghai Donglei Brain Hospital, Shanghai, China
| | - Sheng Guan
- Department of Interventional Neuroradiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Aisha Maimaitili
- Department of Neurosurgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Yunyan Wang
- Department of Neurosurgery, Qilu Hospital of Shandong University Qingdao, Jinan, Shandong, China
| | - Wenfeng Feng
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Yang Wang
- Department of Neurosurgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Jieqing Wan
- Department of Neurosurgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Guohua Mao
- Department of Neurosurgery, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Huaizhang Shi
- Department of Neurosurgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Xinjian Yang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Jianmin Liu
- Department of Neurosurgery, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Yuanli Zhao
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
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Lv B, Sun M, Shan Y, Cao X, Du Z, Liu X, Zhang R, Leng X, Fiehler J, Siddiqui AH, Xiang J, Wang J. AneuGuide™ software-assisted vs. manual measurements in sizing for pipeline embolization device: An agreement study. Comput Biol Med 2024; 168:107715. [PMID: 38007975 DOI: 10.1016/j.compbiomed.2023.107715] [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: 06/18/2023] [Revised: 10/14/2023] [Accepted: 11/15/2023] [Indexed: 11/28/2023]
Abstract
Sizing of flow diverters (FDs) is a challenging task in the treatment of intracranial aneurysms due to their foreshortening behavior. The purpose of this study is to evaluate the difference between the sizing results from the AneuGuide™ software and from conventional 2D measurement. Ninety-eight consecutive patients undergoing pipeline embolization device (PED) treatment between October 2018 and April 2023 in the First Medical Center of Chinese PLA General Hospital (Beijing, China) were retrospectively analyzed. For all cases, the optimal PED dimensions were both manually determined through 2D measurements on pre-treatment 3D-DSA and computed by AneuGuide™ software. The inter-rater reliability between the two sets of sizing results for each methodology was analyzed using intraclass correlation coefficient (ICC). The degree of agreement between manual sizing and software sizing were analyzed with the Bland-Altman plot and Pearson's test. Differences between two methodologies were analyzed with Wilcoxon signed rank test. Statistical significance was defined as p < 0.05. There was better inter-rater reliability between AneuGuide™ measurements both for diameter (ICC 0.92, 95%CI 0.88-0.95) and length (ICC 0.93, 95%CI 0.89-0.96). Bland-Altman plots showed a good agreement for diameter selection between two methodologies. However, the median length proposed by software group was significantly shorter (16 mm versus 20 mm, p < 0.001). No difference was found for median diameter (4.25 mm versus 4.25 mm). We demonstrated that the AneuGuide™ software provides highly reliable results of PED sizing compared with manual measurement, with a shorter stent length. AneuGuide™ may aid neurointerventionalists in selecting optimal dimensions for FD treatment.
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Affiliation(s)
- Bin Lv
- Department of Neurology, The First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Mingguang Sun
- Department of Neurology, Beijing Hospital of Integrated Traditional Chinese and Western Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Yejie Shan
- ArteryFlow Technology Co., Ltd, Hangzhou, China
| | - Xiangyu Cao
- Department of Neurology, The First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Zhihua Du
- Department of Neurology, The First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Xinfeng Liu
- Department of Neurology, The First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Rongju Zhang
- Department of Neurology, The First Medical Center, Chinese PLA General Hospital, Beijing, China
| | | | - Jens Fiehler
- Department of Neuroradiology, University Medical Center Hamburg Eppendorf, Hamburg, Germany
| | - Adnan H Siddiqui
- Neurosurgery and Radiology and Canon Stroke and Vascular Research Center, University at Buffalo Jacobs School of Medicine and Biomedical Sciences, Buffalo, NY, USA
| | | | - Jun Wang
- Department of Neurology, The First Medical Center, Chinese PLA General Hospital, Beijing, China.
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Han M, Tong X, Wang Z, Liu A. Parent artery occlusion after pipeline embolization device implantation of intracranial saccular and fusiform aneurysms. J Neurointerv Surg 2023; 15:1090-1094. [PMID: 36328477 DOI: 10.1136/jnis-2022-019273] [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: 06/15/2022] [Accepted: 10/18/2022] [Indexed: 11/06/2022]
Abstract
BACKGROUND Studies reporting parent artery occlusion (PAO) after pipeline embolization device (PED) implantation are limited. The aim of this study was to investigate the incidence rate and risk factors of PAO after PED implantation. METHODS In this retrospective study, we enrolled consecutive patients with intracranial saccular and fusiform aneurysms treated with PED implantation at our institution. Multivariate logistic regression analysis was subsequently performed to determine the risk factors for PAO. RESULTS A total of 588 saccular and fusiform aneurysms were finally enrolled in the study. PAO was found in 14 (2.38%) aneurysms. The aneurysm complete occlusion rate was 79.6%. Compared with the non-PAO group, aneurysms in the PAO group were larger in size (20.08 vs 9.61 mm; p<0.001), had a greater neck diameter (9.92 vs 6.15 mm; p=0.001), and had higher frequencies of adjunctive coils (64.3% vs 35.7%; p=0.028). In the multivariate logistic analysis, aneurysm size (OR 1.12, 95% CI 1.02 to 1.24; p=0.016) and the presence of poor wall apposition after balloon angioplasty (OR 7.74, 95% CI 1.28 to 46.82; p=0.026) were associated with PAO occurrence after adjusting for confounding factors. CONCLUSIONS In this study, the incidence rate of PAO following PED implantation was 2.38% in intracranial saccular and fusiform aneurysms. Aneurysm size and residual presence of poor wall apposition after balloon angioplasty were risk factors for PAO. Further research is required to better understand the mechanisms of PAO.
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Affiliation(s)
- Mingyang Han
- Department of Neurosurgery, Central South University Third Xiangya Hospital, Changsha, Hunan, China
| | - Xin Tong
- Beijing Neurosurgical Institute, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Zhifei Wang
- Department of Neurosurgery, Central South University Third Xiangya Hospital, Changsha, Hunan, China
| | - Aihua Liu
- Beijing Neurosurgical Institute, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
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Wang Y, Yang X, Zhu W, Wang X, Yao Y, Lu W, Yang G, Qin L, Liu J, Li M. Verification of software-based preoperative simulation of flow diverters in clinical cases. Interv Neuroradiol 2023; 29:510-519. [PMID: 35505598 PMCID: PMC10549721 DOI: 10.1177/15910199221097264] [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: 11/26/2021] [Accepted: 03/24/2022] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE The authors sought to verify the use of a preoperative simulation software for the treatment of intracranial aneurysms using flow diverters (FDs) based on three-dimensional rotational angiography (3DRA) data. METHODS Based on 3DRA data, the preoperative simulation software (UKNOW) was used to simulate the deployment of virtual FDs. The length and dimensions of virtual and real devices were compared. The deployment plan recommended by the UKNOW software was preliminarily used to complete implantations in the real world. During the experiment, experienced neurointerventional experts were responsible for supervising and judging information such as the length, dimension, and deployment location of the FDs. RESULTS This study retrospectively analyzed the data of 29 patients who received FD treatment. There was no statistical difference between the length of the real device and the virtual device (p = 0.6). The dimensions of FDs recommended by the software were consistent with the dimensions used in 24 out of the 29 real cases. In four of the remaining five cases, neurointerventional experts found that the FD dimensions recommended by the software were superior to those were actually used. Thus, the accuracy rate for FD dimension recommendations by the UKNOW software was 96.6% (28/29). Procedures performed in five cases using deployment plans recommended by the UKNOW software all achieved good postoperative results; the deployment positions of the device were reasonable, and all devices showed good wall adherence. CONCLUSIONS UKNOW software could accurately simulate the length and deployment position of the real FDs and provide suitable device dimensions.
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Affiliation(s)
- Yixuan Wang
- Department of Neurosurgery, The China-Japan Union Hospital, Jilin University, Changchun, China
| | - Xinjian Yang
- Department of Interventional Neuroradiology, Beijing Neurosurgical Institute and Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Wei Zhu
- Department of Interventional Neuroradiology, Beijing Neurosurgical Institute and Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Xinlan Wang
- Department of Neurosurgery, The China-Japan Union Hospital, Jilin University, Changchun, China
| | - Yangyang Yao
- UnionStrong (Beijing) Technology Co. Ltd, Beijing, China
| | - Wangsheng Lu
- UnionStrong (Beijing) Technology Co. Ltd, Beijing, China
| | - Guangming Yang
- UnionStrong (Beijing) Technology Co. Ltd, Beijing, China
| | - Lan Qin
- UnionStrong (Beijing) Technology Co. Ltd, Beijing, China
| | - Jian Liu
- Department of Interventional Neuroradiology, Beijing Neurosurgical Institute and Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Miao Li
- Department of Neurosurgery, The China-Japan Union Hospital, Jilin University, Changchun, China
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Vivanco-Suarez J, Mendez-Ruiz A, Farooqui M, Bekelis K, Singer JA, Javed K, Altschul DJ, Fifi JT, Matsoukas S, Cooper J, Al-Mufti F, Gross B, Jankowitz B, Kan PT, Hafeez M, Orru E, Dajles A, Galecio-Castillo M, Zevallos CB, Wakhloo AK, Ortega-Gutierrez S. Safety and efficacy of the surpass streamline for intracranial aneurysms (SESSIA): A multi-center US experience pooled analysis. Interv Neuroradiol 2023; 29:589-598. [PMID: 35934939 PMCID: PMC10549718 DOI: 10.1177/15910199221118148] [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: 05/03/2022] [Revised: 07/09/2022] [Accepted: 07/17/2022] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND AND PURPOSE Flow diversion has established as standard treatment for intracranial aneurysms, the Surpass Streamline is the only FDA-approved braided cobalt/chromium alloy implant with 72-96 wires. We aimed to determine the safety and efficacy of the Surpass in a post-marketing large United States cohort. MATERIALS AND METHODS This is a retrospective multicenter study of consecutive patients treated with the Surpass for intracranial aneurysms between 2018 and 2021. Baseline demographics, comorbidities, and aneurysm characteristics were collected. Efficacy endpoint included aneurysm occlusion on radiographic follow-up. Safety endpoints were major ipsilateral ischemic stroke or treatment-related death. RESULTS A total of 277 patients with 314 aneurysms were included. Median age was 60 years, 202 (73%) patients were females. Hypertension was the most common comorbidity in 156 (56%) patients. The most common location of the aneurysms was the anterior circulation in 89% (279/314). Mean aneurysm dome width was 5.77 ± 4.75 mm, neck width was 4.22 ± 3.83 mm, and dome/neck ratio was 1.63 ± 1.26. Small-sized aneurysms were 185 (59%). Single device was used in 94% of the patients, mean number of devices per patient was 1.06. At final follow-up, complete obliteration rate was 81% (194/239). Major stroke and death were encountered in 7 (3%) and 6 (2%) cases, respectively. CONCLUSION This is the largest cohort study using a 72-96 wire flow diverter. The Surpass Streamline demonstrated a favorable safety and efficacy profile, making it a valuable option for treating not only large but also wide-necked small and medium-sized intracranial aneurysms.
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Affiliation(s)
- Juan Vivanco-Suarez
- Department of Neurology, Neurosurgery & Radiology, The University of Iowa Hospitals and Clinics, Iowa City, IA, United States
| | - Alan Mendez-Ruiz
- Department of Neurology, Neurosurgery & Radiology, The University of Iowa Hospitals and Clinics, Iowa City, IA, United States
| | - Mudassir Farooqui
- Department of Neurology, Neurosurgery & Radiology, The University of Iowa Hospitals and Clinics, Iowa City, IA, United States
| | - Kimon Bekelis
- Department of Neurological Surgery, Good Samaritan Hospital Medical Center, West Islip, NY, United States
| | - Justin A Singer
- Department of Neurological Surgery, Spectrum Health, Grand Rapids, MI, United States
| | - Kainaat Javed
- Department of Neurological Surgery, Montefiore Medical Center, Bronx, NY, United States
| | - David J Altschul
- Department of Neurological Surgery, Montefiore Medical Center, Bronx, NY, United States
| | - Johanna T Fifi
- Department of Neurological Surgery, The Mount Sinai Hospital, New York, NY, United States
| | - Stavros Matsoukas
- Department of Neurological Surgery, The Mount Sinai Hospital, New York, NY, United States
| | - Jared Cooper
- Department of Neurology, Neurosurgery & Radiology, Westchester Medical Center and New York Medical College, Valhalla, NY, United States
| | - Fawaz Al-Mufti
- Department of Neurology, Neurosurgery & Radiology, Westchester Medical Center and New York Medical College, Valhalla, NY, United States
| | - Bradley Gross
- Department of Endovascular Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, United States
| | - Brian Jankowitz
- Department of Endovascular Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, United States
| | - Peter T Kan
- Department of Neurological Surgery, University of Texas Medical Branch, Galveston, TX, United States
| | - Muhammad Hafeez
- Department of Neurological Surgery, University of Texas Medical Branch, Galveston, TX, United States
| | - Emanuele Orru
- Department of Interventional Neuroradiology, Lahey Hospital & Medical Center, Burlington, MA, United States
| | - Andres Dajles
- Department of Neurology, Neurosurgery & Radiology, The University of Iowa Hospitals and Clinics, Iowa City, IA, United States
| | - Milagros Galecio-Castillo
- Department of Neurology, Neurosurgery & Radiology, The University of Iowa Hospitals and Clinics, Iowa City, IA, United States
| | - Cynthia B Zevallos
- Department of Neurology, Neurosurgery & Radiology, The University of Iowa Hospitals and Clinics, Iowa City, IA, United States
| | - Ajay K Wakhloo
- Department of Interventional Neuroradiology, Lahey Hospital & Medical Center, Burlington, MA, United States
| | - Santiago Ortega-Gutierrez
- Department of Neurology, Neurosurgery & Radiology, The University of Iowa Hospitals and Clinics, Iowa City, IA, United States
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Gonzalez SM, Iordanou J, Adams W, Tsiang J, Frazzetta J, Kim M, Rezaii E, Pecoraro N, Zsigray B, Simon JE, Zakaria J, Jusue-Torres I, Li D, Heiferman DM, Serrone JC. Effect of Stent Porosity, Platelet Function Test Usage, and Dual Antiplatelet Therapy Duration on Clinical and Radiographic Outcomes After Stenting for Cerebral Aneurysms: A Meta-Analysis. World Neurosurg 2023; 171:159-166.e13. [PMID: 36529432 DOI: 10.1016/j.wneu.2022.12.055] [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: 11/13/2022] [Revised: 12/09/2022] [Accepted: 12/10/2022] [Indexed: 12/23/2022]
Abstract
BACKGROUND The use of stents with various porosities for treating cerebral aneurysms requires dual antiplatelet therapy (DAPT) without clear guidelines on the utility of platelet function tests (PFTs) and the duration of DAPT. We sought to determine the effects of stent porosity, PFT usage, and DAPT duration on the radiographic and clinical outcomes after stenting of cerebral aneurysms. METHODS PubMed was searched on March 29, 2021 for studies of cerebral aneurysm stenting that had specified the stent type and DAPT duration. A random effects meta-analysis was used to measure the prevalence of nonprocedural thrombotic and hemorrhagic events, clinical outcomes, aneurysm occlusion, and in-stent stenosis stratified by stent porosity, PFT usage, and DAPT duration. RESULTS The review yielded 105 studies (89 retrospective and 16 prospective) with 117 stenting cohorts (50 high porosity, 17 intermediate porosity, and 50 low porosity). In the high-, intermediate-, and low-porosity stenting cohorts, PFT usage was 26.0%, 47.1%, and 62.0% and the mean DAPT duration was 3.51 ± 2.33, 3.97 ± 1.92, and 5.18 ± 2.27 months, respectively. The intermediate-porosity stents showed a reduced incidence of hemorrhagic events (π = 0.32%) compared with low-porosity stents (π = 1.36%; P = 0.01) and improved aneurysm occlusion (π = 6.18%) compared with high-porosity stents (π = 14.42%; P = 0.001) and low-porosity stents (π = 11.71%; P = 0.04). The prevalence of in-stent stenosis was lower for the intermediate-porosity (π = 0.57%) and high-porosity (π = 1.51%) stents than for the low-porosity stents (π = 3.30%; P < 0.05). PFT use had resulted in fewer poor clinical outcomes (π = 3.54%) compared with those without PFT use (π = 5.94%; P = 0.04). The DAPT duration had no effect on the outcomes. CONCLUSIONS In the present meta-analysis, which had selected for studies of cerebral aneurysm stenting that had reported the DAPT duration, intermediate-porosity stents and PFT use had resulted significantly improved outcomes. No effect of DAPT duration could be detected.
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Affiliation(s)
| | - Jordan Iordanou
- Department of Neurological Surgery, Loyola University Medical Center, Maywood, Illinois, USA
| | - William Adams
- Department of Public Health Sciences, Parkinson School of Health Sciences and Public Health, Loyola University Chicago, Illinois, USA
| | - John Tsiang
- Department of Neurological Surgery, Loyola University Medical Center, Maywood, Illinois, USA
| | - Joseph Frazzetta
- Department of Neurological Surgery, Loyola University Medical Center, Maywood, Illinois, USA
| | - Miri Kim
- Department of Neurological Surgery, Loyola University Medical Center, Maywood, Illinois, USA
| | - Elhaum Rezaii
- Stritch School of Medicine, Loyola University Chicago, Maywood, Illinois, USA
| | - Nathan Pecoraro
- Department of Neurological Surgery, Loyola University Medical Center, Maywood, Illinois, USA
| | - Brandon Zsigray
- Department of Neurological Surgery, Loyola University Medical Center, Maywood, Illinois, USA
| | - Joshua E Simon
- Department of Neurological Surgery, Loyola University Medical Center, Maywood, Illinois, USA
| | - Jehad Zakaria
- Department of Neurological Surgery, Loyola University Medical Center, Maywood, Illinois, USA
| | | | - Daphne Li
- Department of Neurological Surgery, Loyola University Medical Center, Maywood, Illinois, USA
| | - Daniel M Heiferman
- Department of Neurological Surgery, Edward-Elmhurst Health, Naperville, Illinois, USA
| | - Joseph C Serrone
- Department of Neurological Surgery, Loyola University Medical Center, Maywood, Illinois, USA; Department of Neurological Surgery, Edward Hines Jr Veterans Affairs Hospital, Hines, Illinois, USA.
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Zhang H, Ren J, Wang J, Lv X. The off-label uses of pipeline embolization device for complex cerebral aneurysms: Mid-term follow-up in a single center. Interv Neuroradiol 2022:15910199221148800. [PMID: 36583531 DOI: 10.1177/15910199221148800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
OBJECTIVE To describe the off-label uses of pipeline embolization device for a variety of types of aneurysms including ruptured aneurysms, posterior circulation aneurysms, small aneurysms, distal aneurysms, and recurrent aneurysms. METHODS Clinical and angiographic data of patients who underwent pipeline embolization device treatment on off-label use at our center were retrospectively reviewed. For categorical variables, Fisher's exact test was used, and a two-sample Wilcoxon rank-sum test was used for patients' age to analyze the correlation with outcomes. RESULTS In this study, 121 aneurysms in 107 patients received off-label pipeline embolization device treatments. The overall rate of complete aneurysm occlusion was 77.8% (28/36 in 35 patients) for posterior circulation aneurysms and 95.3% (81/85 in 72 patients) for anterior circulation aneurysms. The posterior circulation aneurysms have a lower rate of aneurysm occlusion (p = 0.0372). The small aneurysms have a higher rate of aneurysm occlusion (p = 0.0104). The patient's sex, age, and aneurismal size were associated with ischemic stroke complications (p = 0.0397, 0.0166, and 0.0178). In posterior circulation aneurysm patients, only two basilar apex aneurysms underwent pipeline embolization device treatment, both of whom died of thrombotic complications. There was no difference in mortality between posterior circulation aneurysm patients (8.6%, 3/35) and anterior circulation aneurysm patients (1.4%, 1/72) (p = 0.1015). Patients of older age have a higher risk of death rate (p = 0.0053). CONCLUSIONS The off-label use of pipeline embolization device is often performed in clinical practice and can achieve efficacy in complex aneurysms. The off-label use of pipeline embolization device was found to carry an increased rate of mortality in older patients. Excluding basilar apex aneurysms, the pipeline embolization device is as safe as anterior circulation aneurysms in the treatment of posterior circulation aneurysms elsewhere.
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Affiliation(s)
- Huachen Zhang
- Department of Neurosurgery, 589702Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, China
| | - Jiyang Ren
- Center for Statistical Science and Department of Industrial Engineering, Tsinghua University, Beijing, China
| | - Jiangdian Wang
- Center for Statistical Science and Department of Industrial Engineering, Tsinghua University, Beijing, China
| | - Xianli Lv
- Department of Neurosurgery, 589702Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, China
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Tong X, He Z, Han M, Feng X, Duan C, Liu A. Flow diversion treatment for giant intracranial serpentine aneurysms. Front Aging Neurosci 2022; 14:988411. [DOI: 10.3389/fnagi.2022.988411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 10/13/2022] [Indexed: 11/06/2022] Open
Abstract
BackgroundGiant serpentine aneurysms (GSAs) are among the most complex and challenging type of intracranial aneurysms. Surgical clipping, bypass, or endovascular parent artery occlusion has been the main treatment of GSAs in the past. However, studies on flow diversion (FD) are limited. Therefore, we reported our experience with patients with GSAs treated with FD.MethodsPatients with GSAs treated with FD from 2012 to 2020 in our single center were retrospectively reviewed. Angiographic outcomes were graded according to the O’Kelly–Marotta scale as complete occlusion (D), trace filling (C), entry remnant (B), or aneurysm filling (A). Clinical outcomes were assessed using the modified Rankin scale (mRS) score. We also collected the patients’ treatment details and perioperative complications.ResultsThirteen patients with 14 aneurysms were included, including three in the anterior circulation and 11 in the posterior circulation. Grades B–D were found in 72.7% (8/11) of the GSAs. Good prognosis (mRS score, 0–2) was found in 66.7% (8/12) and 50.0% (6/12) of the patients at the 6-month and latest follow-up, respectively. Parent artery occlusion was found in three cases of GSAs. Five postoperative complications were observed, including two minor complications and three major complications.ConclusionAlthough reconstructive treatment with FD could be considered as one of the treatment strategies for patients with both anterior and posterior circulation GSAs, however, the risk of complications and parent artery occlusion should be considered.
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Wei D, Deng D, Gui S, You W, Feng J, Meng X, Chen X, Lv J, Tang Y, Chen T, Liu P. Machine learning to predict in-stent stenosis after Pipeline embolization device placement. Front Neurol 2022; 13:912984. [PMID: 36147044 PMCID: PMC9486156 DOI: 10.3389/fneur.2022.912984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Accepted: 08/15/2022] [Indexed: 11/23/2022] Open
Abstract
Background The Pipeline embolization device (PED) is a flow diverter used to treat intracranial aneurysms. In-stent stenosis (ISS) is a common complication of PED placement that can affect long-term outcome. This study aimed to establish a feasible, effective, and reliable model to predict ISS using machine learning methodology. Methods We retrospectively examined clinical, laboratory, and imaging data obtained from 435 patients with intracranial aneurysms who underwent PED placement in our center. Aneurysm morphological measurements were manually measured on pre- and posttreatment imaging studies by three experienced neurointerventionalists. ISS was defined as stenosis rate >50% within the PED. We compared the performance of five machine learning algorithms (elastic net (ENT), support vector machine, Xgboost, Gaussian Naïve Bayes, and random forest) in predicting ISS. Shapley additive explanation was applied to provide an explanation for the predictions. Results A total of 69 ISS cases (15.2%) were identified. Six predictors of ISS (age, obesity, balloon angioplasty, internal carotid artery location, neck ratio, and coefficient of variation of red cell volume distribution width) were identified. The ENT model had the best predictive performance with a mean area under the receiver operating characteristic curve of 0.709 (95% confidence interval [CI], 0.697–0.721), mean sensitivity of 77.9% (95% CI, 75.1–80.6%), and mean specificity of 63.4% (95% CI, 60.8–65.9%) in Monte Carlo cross-validation. Shapley additive explanation analysis showed that internal carotid artery location was the most important predictor of ISS. Conclusion Our machine learning model can predict ISS after PED placement for treatment of intracranial aneurysms and has the potential to improve patient outcomes.
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Affiliation(s)
- Dachao Wei
- Department of Interventional Neuroradiology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, China
| | - Dingwei Deng
- Department of Interventional Neuroradiology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, China
| | - Siming Gui
- Department of Interventional Neuroradiology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, China
| | - Wei You
- Department of Interventional Neuroradiology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, China
| | - Junqiang Feng
- Department of Interventional Neuroradiology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, China
| | - Xiangyu Meng
- Department of Interventional Neuroradiology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, China
| | - Xiheng Chen
- Department of Interventional Neuroradiology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, China
| | - Jian Lv
- Department of Interventional Neuroradiology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, China
| | - Yudi Tang
- Department of Interventional Neuroradiology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, China
| | - Ting Chen
- School of Biomedical Engineering, Capital Medical University, Beijing, China
| | - Peng Liu
- Department of Interventional Neuroradiology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, China
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Beijing, China
- *Correspondence: Peng Liu
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10
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Shlobin NA, Raz E, Shapiro M, Moretti L, Cantrell DR, Lam SK, Hurley MC, Ansari SA, Nossek E, Riina HA, Nelson PK, Jahromi BS, Shaibani A, Potts MB. Pipeline embolization of cerebral aneurysms in pediatric patients: combined systematic review of patient-level data and multicenter retrospective review. J Neurosurg Pediatr 2021; 27:668-676. [PMID: 33892469 DOI: 10.3171/2020.10.peds20324] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Accepted: 10/01/2020] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Cerebral aneurysms in the pediatric population are rare and optimal treatment strategies are not as well characterized as in adults. The Pipeline embolization device (PED) is an endoluminal flow diverter that is commonly used to treat aneurysms in adults, but experience with this device in children is limited. The authors sought to further characterize PED use and outcomes in this specific population by performing both a systematic review of patient-level data from studies reporting the use of the PED to treat pediatric aneurysms and a retrospective review of their experience. METHODS A systematic review of the PubMed, Embase, and Scopus databases was performed to identify studies reporting the use of the PED in pediatric patients (age ≤ 18 years). Disaggregated data regarding demographics, aneurysm characteristics, treatment, and outcomes were collected. Retrospective data from the authors' two institutions were also included. RESULTS Thirty studies comprising patient-level data on 43 pediatric patients with 47 aneurysms were identified. An additional 9 patients with 9 aneurysms were included from the authors' institutions for a total of 52 patients with 56 aneurysms. The mean patient age was 11.1 years. Presentations included aneurysm rupture (17.3%) and symptomatic mass effect (23.1%). Aneurysms were located in the anterior circulation in 55.4% of cases, and 73.2% were described as nonsaccular. Imaging follow-up was available for 89.3% with a mean follow-up of 13.3 months. Aneurysm occlusion was reported in 75%, with 1 case each (1.8%) demonstrating significant in-stent stenosis and parent vessel occlusion. Clinical follow-up was reported in 90.4% with a mean follow-up of 14.7 months. Good functional outcomes (modified Rankin Scale score of 0-1 or Glasgow Outcome Scale score of 5) were reported in 65.4% of the total population. Two major complications were reported, including 1 death. CONCLUSIONS Despite substantial differences in aneurysm location and type between published pediatric and adult patient populations treated with the PED, the use of the PED in the pediatric population appears to be safe. While the short-term effectiveness is also similar to that of adults, additional studies are needed to further characterize the long-term outcomes and better define the use of this device in pediatric patients.
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Affiliation(s)
| | - Eytan Raz
- 5Departments of Radiology and Neurological Surgery, New York University Grossman School of Medicine, Bernard and Irene Schwartz Neurointerventional Radiology Section, NYU Langone Medical Center, New York, New York
| | - Maksim Shapiro
- 5Departments of Radiology and Neurological Surgery, New York University Grossman School of Medicine, Bernard and Irene Schwartz Neurointerventional Radiology Section, NYU Langone Medical Center, New York, New York
| | - Luke Moretti
- 5Departments of Radiology and Neurological Surgery, New York University Grossman School of Medicine, Bernard and Irene Schwartz Neurointerventional Radiology Section, NYU Langone Medical Center, New York, New York
| | - Donald R Cantrell
- 2Radiology, Northwestern Memorial Hospital, Feinberg School of Medicine, Northwestern University, Chicago.,4Department of Medical Imaging, Ann and Robert H. Lurie Children's Hospital of Chicago, Illinois; and
| | - Sandi K Lam
- Departments of1Neurological Surgery and.,3Division of Neurosurgery and
| | - Michael C Hurley
- Departments of1Neurological Surgery and.,2Radiology, Northwestern Memorial Hospital, Feinberg School of Medicine, Northwestern University, Chicago.,4Department of Medical Imaging, Ann and Robert H. Lurie Children's Hospital of Chicago, Illinois; and
| | - Sameer A Ansari
- Departments of1Neurological Surgery and.,2Radiology, Northwestern Memorial Hospital, Feinberg School of Medicine, Northwestern University, Chicago.,4Department of Medical Imaging, Ann and Robert H. Lurie Children's Hospital of Chicago, Illinois; and
| | - Erez Nossek
- 5Departments of Radiology and Neurological Surgery, New York University Grossman School of Medicine, Bernard and Irene Schwartz Neurointerventional Radiology Section, NYU Langone Medical Center, New York, New York
| | - Howard A Riina
- 5Departments of Radiology and Neurological Surgery, New York University Grossman School of Medicine, Bernard and Irene Schwartz Neurointerventional Radiology Section, NYU Langone Medical Center, New York, New York
| | - Peter K Nelson
- 5Departments of Radiology and Neurological Surgery, New York University Grossman School of Medicine, Bernard and Irene Schwartz Neurointerventional Radiology Section, NYU Langone Medical Center, New York, New York
| | - Babak S Jahromi
- Departments of1Neurological Surgery and.,2Radiology, Northwestern Memorial Hospital, Feinberg School of Medicine, Northwestern University, Chicago
| | - Ali Shaibani
- Departments of1Neurological Surgery and.,2Radiology, Northwestern Memorial Hospital, Feinberg School of Medicine, Northwestern University, Chicago.,4Department of Medical Imaging, Ann and Robert H. Lurie Children's Hospital of Chicago, Illinois; and
| | - Matthew B Potts
- Departments of1Neurological Surgery and.,2Radiology, Northwestern Memorial Hospital, Feinberg School of Medicine, Northwestern University, Chicago
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11
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Wang Y, Yuan C, Shen S, Xu L, Duan H. Whether Intracranial Aneurysm Could Be Well Treated by Flow Diversion: A Comprehensive Meta-Analysis of Large-Sample Studies including Anterior and Posterior Circulation. BIOMED RESEARCH INTERNATIONAL 2021; 2021:6637780. [PMID: 33778074 PMCID: PMC7969082 DOI: 10.1155/2021/6637780] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Revised: 02/12/2021] [Accepted: 02/26/2021] [Indexed: 11/18/2022]
Abstract
BACKGROUND Flow diversion (FD) has become a widely adopted treatment method for intracranial aneurysms in the clinic, but a comprehensive meta-analysis of large-sample studies including anterior and posterior circulation is still lacking. METHODS The PubMed, Embase, Web of Science, and Cochrane databases were searched between January 1, 2008, and December 1, 2019. A random-effect model was used to calculate the efficacy and safety data as well as 95% confidence intervals (CIs). RESULTS The pooled sample size of all included studies was 6695 patients; the mean age was 55.5 years old, with a total of 7406 aneurysms. For efficacy, the complete occlusion rate in angiographic follow-up (AFU) at 6 months was 78% (95% CI, 0.77, 0.80), and the AFU rate at 6-12 months was 90% (95% CI, 0.88, 0.92). For safety, the hemorrhagic event rate was 2%, the ischemic event rate was 5%, and the mortality rate was 3%. CONCLUSION FD is an effective and safe treatment for intracranial aneurysm with high complete occlusion rate and acceptable complication rate.
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Affiliation(s)
- Yingjin Wang
- Department of Neurosurgery, Peking University First Hospital, No. 8 Xishiku Street, Xicheng District, Beijing 100034, China
| | - Changwei Yuan
- Department of Neurosurgery, Peking University First Hospital, No. 8 Xishiku Street, Xicheng District, Beijing 100034, China
| | - Shengli Shen
- Department of Neurosurgery, Peking University First Hospital, No. 8 Xishiku Street, Xicheng District, Beijing 100034, China
| | - Liqing Xu
- Department of Neurosurgery, Peking University First Hospital, No. 8 Xishiku Street, Xicheng District, Beijing 100034, China
| | - Hongzhou Duan
- Department of Neurosurgery, Peking University First Hospital, No. 8 Xishiku Street, Xicheng District, Beijing 100034, China
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12
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Kamide T, Misaki K, Uno T, Yoshikawa A, Uchiyama N, Nakada M. Extracranial-intracranial high-flow bypass as a rescue therapy for incomplete cerebral aneurysm occlusion after flow diversion: A case report. Surg Neurol Int 2021; 12:57. [PMID: 33654560 PMCID: PMC7911044 DOI: 10.25259/sni_836_2020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Accepted: 01/29/2021] [Indexed: 11/17/2022] Open
Abstract
Background: Excellent treatment outcomes using a pipeline embolization device (PED) have been reported. However, several limitations exist. For example, patients must receive antiplatelet therapy for at least several months, and few alternative treatments exist except for inserting additional flow diverter stents in cases where aneurysm obliteration is not obtained. Case Description: A 67-year-old female suffered from an asymptomatic large aneurysm of the left paraclinoid internal carotid artery (ICA). She underwent endovascular coil embolization, but coil compaction was confirmed at 2-year follow-up. A PED was inserted as an additional treatment. Unfortunately, the patient was required to discontinue antiplatelet therapy to undergo orthopedic surgery for her severe osteoarthritis of the knee. However, surveillance imaging performed 2 years after insertion of the PED revealed persistent filling into the aneurysm, and we could not stop the antiplatelet therapy to proceed with orthopedic surgery. Therefore, we performed ICA trapping with extracranial-intracranial high-flow bypass to cease antiplatelet therapy promptly. Antiplatelet therapy was completed 3 months after the rescue surgery, and the patient underwent orthopedic surgery. Conclusion: The authors describe a case of failure of complete obliteration after treatment using a PED, which required cessation of antiplatelet therapy to receive orthopedic surgery. Although safety and efficacy of PED treatment have been reported, we must consider the possibility of other diseases requiring discontinuation of antiplatelet therapy after PED embolization.
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Affiliation(s)
- Tomoya Kamide
- Department of Neurosurgery, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - Kouichi Misaki
- Department of Neurosurgery, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - Takehiro Uno
- Department of Neurosurgery, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - Akifumi Yoshikawa
- Department of Neurosurgery, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - Naoyuki Uchiyama
- Department of Neurosurgery, Ishikawa Prefectural Central Hospital, Kanazawa, Ishikawa, Japan
| | - Mitsutoshi Nakada
- Department of Neurosurgery, Kanazawa University, Kanazawa, Ishikawa, Japan
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13
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Shin DS, Carroll CP, Elghareeb M, Hoh BL, Kim BT. The Evolution of Flow-Diverting Stents for Cerebral Aneurysms; Historical Review, Modern Application, Complications, and Future Direction. J Korean Neurosurg Soc 2020; 63:137-152. [PMID: 32120455 PMCID: PMC7054118 DOI: 10.3340/jkns.2020.0034] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Accepted: 02/19/2020] [Indexed: 12/12/2022] Open
Abstract
In spite of the developing endovascular era, large (15–25 mm) and giant (>25 mm) wide-neck cerebral aneurysms remained technically challenging. Intracranial flow-diverting stents (FDS) were developed to address these challenges by targeting aneurysm hemodynamics to promote aneurysm occlusion. In 2011, the first FDS approved for use in the United States market. Shortly thereafter, the Pipeline of Uncoilable or Failed Aneurysms (PUFS) study was published demonstrating high efficacy and a similar complication profile to other intracranial stents. The initial FDA instructions for use (IFU) limited its use to patients 22 years old or older with wide-necked large or giant aneurysms of the internal carotid artery (ICA) from the petrous segment to superior hypophyseal artery/ophthalmic segment. Expanded IFU was tested in the Prospective Study on Embolization of Intracranial Aneurysms with PipelineTM Embolization Device (PREMIER) trial. With further post-approval clinical data, the United States FDA expanded the IFU to include patients with small or medium, wide-necked saccular or fusiform aneurysms from the petrous ICA to the ICA terminus. However, IFU is more restrictive in South Korea than in United States. Several systematic reviews and meta-analyses have sought to evaluate the overall efficacy of FDS for the treatment of cerebral aneurysms and consistently identify FDS as an effective technique for the treatment of aneurysms broadly with complication rates similar to other traditional techniques. A growing body of literature has demonstrated high efficacy of FDS for small aneurysms; distal artery aneurysms; non-saccular aneurysms posterior circulation aneurysms and complication rates similar to traditional techniques. In the short interval since the Pipeline Embolization Device was first introduced, FDS has been firmly entrenched as a powerful tool in the endovascular armamentarium. As new FDS are developed, established FDS are refined, and delivery systems are improved the uses for FDS will only expand further. Researchers continue to work to optimize the mechanical characteristics of the FDS themselves, aiming to optimize deploy ability and efficacy. With expanded use for small to medium aneurysms and posterior circulation aneurysms, FDS technology is firmly entrenched as a powerful tool to treat challenging aneurysms, both primarily and as an adjunct to coil embolization. With the aforementioned advances, the ease of FDS deployment will improve and complication rates will be further minimized. This will only further establish FDS deployment as a key strategy in the treatment of cerebral aneurysms.
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Affiliation(s)
- Dong-Seong Shin
- Department of Neurosurgery, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
| | - Christopher P Carroll
- Department of Brain & Spine Surgery, Naval Medical Center Portsmouth, Portsmouth, VA, USA.,Department of Surgery, Uniformed Services University, Bethesda, MD, USA
| | | | - Brian L Hoh
- Department of Neurosurgery, University of Florida, Gainesville, FL, USA
| | - Bum-Tae Kim
- Department of Neurosurgery, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
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14
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Ocal O, Peker A, Balci S, Arat A. Placement of a Stent within a Flow Diverter Improves Aneurysm Occlusion Rates. AJNR Am J Neuroradiol 2019; 40:1932-1938. [PMID: 31582390 DOI: 10.3174/ajnr.a6237] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Accepted: 08/13/2019] [Indexed: 12/16/2022]
Abstract
BACKGROUND AND PURPOSE Placement of a stent within a flow diverter has been described previously but its consequences have not been analyzed. We evaluated the clinical and angiographic results of stent placement within a flow diverter during the same treatment session. MATERIALS AND METHODS All patients treated with a Surpass flow diverter were retrospectively evaluated. Patients with previously deployed stents and procedures in which scaffolding stents, a second flow diverter, or intrasaccular devices were used were excluded. Patient and aneurysm characteristics and clinical and imaging follow-up results were compared between stented and nonstented Surpass flow-diverter groups and stent assisted coiling. RESULTS Thirty-five patients (41 aneurysms) were treated with a Surpass flow diverter only (monotherapy group), and in 33 patients (35 aneurysms), a stent was placed within the Surpass flow diverter (stented group). Stents were placed inside the Surpass flow diverter for a variety of reasons at the operator's discretion. No statistical difference was noted between the 2 groups in age, body weight, sex, history of thromboembolic events, smoking, platelet inhibition levels, hypertension, hyperlipidemia, diabetes mellitus, malignancy, and aneurysm location. Aneurysms in the stented group were larger than those in the monotherapy group (14.8 versus 9.1 mm, P < .001). The rate of clinically significant adverse events and complete aneurysm occlusion rates at 0-3 and 3-6 months (73.3% versus 61.3%, P = .31, and 84.8% versus 70.2%, P = .14) were similar. At 9-12 months, a significantly higher proportion of aneurysms in the stented group achieved complete occlusion (93.9% versus 73.2%, P = .019). There was a trend toward a higher obliteration rate on final follow-up in the stented group (93.9% versus 82.9%, P = .14). CONCLUSIONS Placement of a stent within a flow diverter increases the rate of aneurysm occlusion. We propose that these results are from improved flow-diverter apposition due to the higher radial force of intracranial stents.
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Affiliation(s)
- O Ocal
- From the Department of Radiology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - A Peker
- From the Department of Radiology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - S Balci
- From the Department of Radiology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - A Arat
- From the Department of Radiology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
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15
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Ospel JM, Gascou G, Costalat V, Piergallini L, Blackham KA, Zumofen DW. Comparison of Pipeline Embolization Device Sizing Based on Conventional 2D Measurements and Virtual Simulation Using the Sim&Size Software: An Agreement Study. AJNR Am J Neuroradiol 2019; 40:524-530. [PMID: 30733254 DOI: 10.3174/ajnr.a5973] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Accepted: 01/04/2019] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE The Sim&Size software simulates case-specific intraluminal Pipeline Embolization Device behavior, wall apposition, and device length in real-time on the basis of rotational angiography DICOM data. The purpose of this multicenter study was to evaluate whether preimplantation device simulation with the Sim&Size software results in selection of different device dimensions than manual sizing. MATERIALS AND METHODS In a multicenter cohort of 74 patients undergoing aneurysm treatment with the Pipeline Embolization Device, we compared apparent optimal device dimensions determined by neurointerventionalists with considerable Pipeline Embolization Device experience based on manual 2D measurements taken from rotational angiography with computed optimal dimensions determined by Sim&Size experts blinded to the neurointerventionalists' decision. Agreement between manually determined and computed optimal dimensions was evaluated with the Cohen κ. The significance of the difference was analyzed with the Wilcoxon signed rank test. RESULTS The agreement index between manual selection and computed optimal dimensions was low (κ for diameter = 0.219; κ for length = 0.149, P < .01). Computed optimal device lengths were significantly shorter (median, 14 versus 16 mm, T = 402, r = -0.28, P < .01). No significant difference was observed for device diameters. CONCLUSIONS Low agreement between manually determined and computed optimal device dimensions is not proof, per se, that virtual simulation performs better than manual selection. Nevertheless, it ultimately reflects the potential for optimization of the device-sizing process, and use of the Sim&Size software reduces, in particular, device length. Nevertheless, further evaluation is required to clarify the impact of device-dimension modifications on outcome.
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Affiliation(s)
- J M Ospel
- From the Diagnostic and Interventional Neuroradiology Section (J.M.O., K.A.B., D.W.Z.), Department of Radiology and Nuclear Medicine
| | - G Gascou
- Department of Neuroradiology (G.G., V.C., L.P.), Hôpital Gui de Chauliac, Centre Hospitalier Universitaire de Montpellier, University of Montpellier, Montpellier, France
| | - V Costalat
- Department of Neuroradiology (G.G., V.C., L.P.), Hôpital Gui de Chauliac, Centre Hospitalier Universitaire de Montpellier, University of Montpellier, Montpellier, France
| | - L Piergallini
- Department of Neuroradiology (G.G., V.C., L.P.), Hôpital Gui de Chauliac, Centre Hospitalier Universitaire de Montpellier, University of Montpellier, Montpellier, France.,Postgraduation School of Radiodiagnostics (L.P.), Università degli Studi di Milano, Milan, Italy
| | - K A Blackham
- From the Diagnostic and Interventional Neuroradiology Section (J.M.O., K.A.B., D.W.Z.), Department of Radiology and Nuclear Medicine
| | - D W Zumofen
- From the Diagnostic and Interventional Neuroradiology Section (J.M.O., K.A.B., D.W.Z.), Department of Radiology and Nuclear Medicine.,Department of Neurosurgery (D.W.Z.), University Hospital Basel, University of Basel, Basel, Switzerland
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16
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Bhogal P, AlMatter M, Hellstern V, Ganslandt O, Bäzner H, Henkes H, Aguilar-Pérez M. The Combined Use of Intraluminal and Intrasaccular Flow Diversion for the Treatment of Intracranial Aneurysms: Report of 25 Cases. Neurointervention 2018; 13:20-31. [PMID: 29535895 PMCID: PMC5847887 DOI: 10.5469/neuroint.2018.13.1.20] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2018] [Revised: 02/23/2018] [Accepted: 02/26/2018] [Indexed: 11/29/2022] Open
Abstract
PURPOSE The Medina Embolic Device (MED) is a new intrasaccular device with promising early results. Previously we documented our initial experience of this device both alone and in combination with other devices including flow diverter stents (FDS). We sought to determine the effect of the MED + FDS strategy for the treatment of selected aneurysms. MATERIALS AND METHODS We performed a retrospective analysis of prospectively collected data to identify all patients with aneurysms treated using both the MED and intraluminal FDS. We present our technical success rate, early and mid-term angiographic follow-up, and clinical outcome data. RESULTS We identified 25 non-consecutive patients. The treatment was staged in 9 patients and in a single session 16 patients. The average age was 61±12.8 years (range 40-82). The average fundus height was 11±3.6 mm and average fundus width was 10.1±3.4 mm. In the staged cohort (n=9) at delayed angiography (mean 10 mths) 8 aneurysms (89%) showed complete exclusion (mRRC 1) and in one patient there was a parent vessel occlusion. In the simultaneous cohort delayed angiography (n=10, mean 8.1 months) demonstrated complete occlusion (mRRC 1) in 6 aneurysms (60%), 3 neck remnants (mRRC 2) (30%) and 1 patient (10%) showed persistent aneurysmal filling (mRRC 3a). There were 5 complications with permanent morbidity (mRS >2) in two patients. There were no mortalities. CONCLUSION The MED can be successfully used in combination with intraluminal FDS and in selected aneurysms this may represent an alternative to FDS and adjunctive coiling.
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Affiliation(s)
- Pervinder Bhogal
- Neuroradiological Clinic, Neurocenter, Klinikum Stuttgart, Germany
| | | | | | | | - Hansjörg Bäzner
- Neurological Clinic, Neurocenter, Klinikum Stuttgart, Germany
| | - Hans Henkes
- Neuroradiological Clinic, Neurocenter, Klinikum Stuttgart, Germany
- Medical Faculty, University Duisburg-Essen, Germany
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17
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Srinivasan VM, Kan P. Letter to the Editor. Delayed parent vessel occlusion in Pipeline embolization. J Neurosurg 2018; 128:327-328. [DOI: 10.3171/2017.3.jns17461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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