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Alexander MJ, Yu W. Intracranial atherosclerosis update for neurointerventionalists. J Neurointerv Surg 2024; 16:522-528. [PMID: 37295944 DOI: 10.1136/jnis-2022-019628] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 05/31/2023] [Indexed: 06/12/2023]
Abstract
The management of intracranial atherosclerotic disease (ICAD) has been evolving with advanced imaging, refinements of best medical treatment, and the development of endovascular options. There has been a significant increase in the use of endovascular therapy for symptomatic ICAD in the USA over the past 6 years. The rationale for this review is to update neurointerventionalists in these areas so that evidence-based decisions can be considered when counseling potential patients regarding their risks, benefits, and potential complications. The landmark SAMMPRIS trial demonstrated superiority of aggressive medical management (AMM) over intracranial stenting as an initial treatment. However, the risk of disabling or fatal stroke remains high in patients presenting with stroke treated with AMM. Recent studies showed a significantly lower rate of periprocedural complications from intracranial stenting. Patients who have failed medical treatment may therefore benefit from intracranial stenting, particularly in those with hemodynamic compromise and large vessel embolic stroke. Drug coated angioplasty balloons and drug eluting stents may potentially reduce the risk of in-stent re-stenosis. Large vessel occlusion (LVO) due to underlying ICAD is seen in a subset of thrombectomy-eligible patients. The use of stenting as a rescue therapy in LVO thrombectomy has also shown promising early results.
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Affiliation(s)
| | - Wengui Yu
- Neurology, University of California Irvine, Irvine, California, USA
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Lee HG, Yi HJ, Shin DS, Kim BT. Comparison of 4 mm-sized and 3 mm-sized Stent Retrievers in Mechanical Thrombectomy for M2 Occlusion. Curr Neurovasc Res 2024; 21:157-165. [PMID: 38584536 DOI: 10.2174/0115672026303196240327053722] [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: 12/16/2023] [Revised: 01/18/2024] [Accepted: 12/22/2024] [Indexed: 04/09/2024]
Abstract
INTRODUCTION A stent retriever (SR) is widely used in mechanical thrombectomy (MT) for M2 segment occlusion. However, the suitable size of SR in M2 occlusion remains unclear. Therefore, we aimed to compare 4 mm-sized SR with 3 mm-sized SR in M2 occlusion. METHODS Patients who underwent MT with SR for M2 occlusion were dichotomized into 4×20 mm SR and 3×20 mm SR groups. Then, 1:1 propensity score matching was performed. The M2 segment was divided into proximal and distal segments according to the occlusion site. Subgroup analysis was then performed for each cohort. RESULTS A total of 111 patients were enrolled, with 4×20 mm SR and 3×20 mm SR applied in 72 (64.9%) and 39 (35.1%) cases, respectively. In propensity score matching, mean number of stent passages for reperfusion was significantly lower in the 4×20 mm SR group than in the 3×20 mm SR group (1.5 ± 0.8 vs. 2.1 ± 1.1; p = 0.004). First-pass reperfusion (FPR) was more highly achieved in the 4×20 mm SR group than in the 3×20 mm SR group (52.6% vs. 42.1%; p = 0.007). In both proximal and distal occlusion cohorts, the 4 mm SR group showed lower mean number of SR passage (p = 0.004 and p = 0.003, respectively) and higher FPR rate than the 3 mm SR group (p = 0.003 and p = 0.007, respectively). CONCLUSION In MT for M2 occlusion, 4×20 mm SR enables an effective procedure with lesser SR passage for reperfusion and a higher rate of FPR than 3×20 mm SR.
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Affiliation(s)
- Han Gyul Lee
- Department of Neurosurgery, Soonchunhyang University Seoul Hospital, Seoul, Republic of Korea
| | - Ho Jun Yi
- Department of Neurosurgery, Soonchunhyang University Seoul Hospital, Seoul, Republic of Korea
- Department of Neurosurgery, Soonchunhyang University Bucheon Hospital, Bucheon, Republic of Korea
- Department of Neurosurgery, St. Vincent's Hospital, The Catholic University of Korea, Suwon, Republic of Korea
| | - Dong-Seong Shin
- Department of Neurosurgery, Soonchunhyang University Bucheon Hospital, Bucheon, Republic of Korea
| | - Bum-Tae Kim
- Department of Neurosurgery, Soonchunhyang University Bucheon Hospital, Bucheon, Republic of Korea
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Liang K, Zhang J, Zhao L, Cao Y, Jiang L, Liu Q, Liu S, Shi H, Jia Z. Acute Vertebrobasilar Artery Occlusion with Underlying Atherosclerosis: Balloon Angioplasty Combined with Tirofiban as Initial Salvage Therapy. World Neurosurg 2023; 179:e321-e327. [PMID: 37634670 DOI: 10.1016/j.wneu.2023.08.084] [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: 08/09/2023] [Accepted: 08/19/2023] [Indexed: 08/29/2023]
Abstract
OBJECTIVE The optimal rescue endovascular treatment for patients with intracranial atherosclerotic stenosis in acute vertebrobasilar artery occlusion is not well established. We investigated the safety and efficacy of balloon angioplasty combined with tirofiban as the initial rescue strategy in these patients. METHODS We retrospectively analyzed the records of 41 patients admitted between January 2014 and September 2022, with vertebrobasilar artery atherosclerotic occlusion. Balloon angioplasty in combination with tirofiban was used as the first-line salvage therapy after the failure of mechanical thrombectomy. The technical success rate, recanalization outcome, procedure-related complications, symptomatic intracranial hemorrhage, and functional outcome at 90 days were reviewed. RESULTS Recanalization with a modified Thrombolysis in Cerebral Infarction grade of 2b-3 was achieved in 38 of the 41 patients (92.7%). Acute stents were deployed in 5 patients who did not achieve successful reperfusion after balloon angioplasty. Six patients (14.6%, 6/41) underwent stent angioplasty in the stable stage for severe residual stenosis detected on follow-up imaging. There was no procedure-related complication. Hemorrhagic transformation was detected on follow-up imaging in 11 patients (26.8%), while no symptomatic intracranial hemorrhage was recorded. Good functional outcome rate was 31.7% (13/41). CONCLUSIONS Balloon angioplasty combined with intravenous tirofiban administration is a safe and effective salvage therapy in patients with acute atherosclerotic occlusion of the vertebrobasilar artery.
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Affiliation(s)
- Kun Liang
- Department of Interventional Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Jiulou Zhang
- Department of Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Linbo Zhao
- Department of Interventional Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yuezhou Cao
- Department of Interventional Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Lei Jiang
- Department of Emergency, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Qianghui Liu
- Department of Emergency, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Sheng Liu
- Department of Interventional Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Haibin Shi
- Department of Interventional Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Zhenyu Jia
- Department of Interventional Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.
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4
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Khachatryan T, Shafie M, Abcede H, Shah J, Nagamine M, Granstein J, Yuki I, Golshani K, Suzuki S, Yu W. Rescue therapy after thrombectomy for large vessel occlusion due to underlying atherosclerosis: review of literature. Front Neurol 2023; 14:1181295. [PMID: 37396754 PMCID: PMC10313123 DOI: 10.3389/fneur.2023.1181295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 05/24/2023] [Indexed: 07/04/2023] Open
Abstract
In this review article, we summarized the current advances in rescue management for reperfusion therapy of acute ischemic stroke from large vessel occlusion due to underlying intracranial atherosclerotic stenosis (ICAS). It is estimated that 24-47% of patients with acute vertebrobasilar artery occlusion have underlying ICAS and superimposed in situ thrombosis. These patients have been found to have longer procedure times, lower recanalization rates, higher rates of reocclusion and lower rates of favorable outcomes than patients with embolic occlusion. Here, we discuss the most recent literature regarding the use of glycoprotein IIb/IIIa inhibitors, angioplasty alone, or angioplasty with stenting for rescue therapy in the setting of failed recanalization or instant/imminent reocclusion during thrombectomy. We also present a case of rescue therapy post intravenous tPA and thrombectomy with intra-arterial tirofiban and balloon angioplasty followed by oral dual antiplatelet therapy in a patient with dominant vertebral artery occlusion due to ICAS. Based on the available literature data, we conclude that glycoprotein IIb/IIIa is a reasonably safe and effective rescue therapy for patients who have had a failed thrombectomy or have residual severe intracranial stenosis. Balloon angioplasty and/or stenting may be helpful as a rescue treatment for patients who have had a failed thrombectomy or are at risk of reocclusion. The effectiveness of immediate stenting for residual stenosis after successful thrombectomy is still uncertain. Rescue therapy does not appear to increase the risk of sICH. Randomized controlled trials are warranted to prove the efficacy of rescue therapy.
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Affiliation(s)
- Tigran Khachatryan
- Department of Neurology, University of California, Irvine, Irvine, CA, United States
| | - Mohammad Shafie
- Department of Neurology, University of California, Irvine, Irvine, CA, United States
| | - Hermelinda Abcede
- Department of Neurology, University of California, Irvine, Irvine, CA, United States
| | - Jay Shah
- Department of Neurology, University of California, Irvine, Irvine, CA, United States
| | - Masaki Nagamine
- Department of Neurology, University of California, Irvine, Irvine, CA, United States
| | - Justin Granstein
- Department of Neurological Surgery, University of California, Irvine, Irvine, CA, United States
| | - Ichiro Yuki
- Department of Neurological Surgery, University of California, Irvine, Irvine, CA, United States
| | - Kiarash Golshani
- Department of Neurological Surgery, University of California, Irvine, Irvine, CA, United States
| | - Shuichi Suzuki
- Department of Neurological Surgery, University of California, Irvine, Irvine, CA, United States
| | - Wengui Yu
- Department of Neurology, University of California, Irvine, Irvine, CA, United States
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5
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Huo X, Sun D, Chen W, Han H, Abdalkader M, Puetz V, Yi T, Wang H, Liu R, Tong X, Jia B, Ma N, Gao F, Mo D, Yan B, Mitchell PJ, Leung TW, Yavagal DR, Albers GW, Costalat V, Fiehler J, Zaidat OO, Jovin TG, Liebeskind DS, Nguyen TN, Miao Z. Endovascular Treatment for Acute Large Vessel Occlusion Due to Underlying Intracranial Atherosclerotic Disease. Semin Neurol 2023; 43:337-344. [PMID: 37549690 DOI: 10.1055/s-0043-1771207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/09/2023]
Abstract
Intracranial atherosclerotic disease (ICAD) is one of the most common causes of acute ischemic stroke worldwide. Patients with acute large vessel occlusion due to underlying ICAD (ICAD-LVO) often do not achieve successful recanalization when undergoing mechanical thrombectomy (MT) alone, requiring rescue treatment, including intra-arterial thrombolysis, balloon angioplasty, and stenting. Therefore, early detection of ICAD-LVO before the procedure is important to enable physicians to select the optimal treatment strategy for ICAD-LVO to improve clinical outcomes. Early diagnosis of ICAD-LVO is challenging in the absence of consensus diagnostic criteria on noninvasive imaging and early digital subtraction angiography. In this review, we summarize the clinical and diagnostic criteria, prediction of ICAD-LVO prior to the procedure, and EVT strategy of ICAD-LVO and provide recommendations according to the current literature.
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Affiliation(s)
- Xiaochuan Huo
- Cerebrovascular Disease Department, Neurological Disease Center, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Dapeng Sun
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Wenhuo Chen
- Department of Neurology, Zhangzhou Affiliated Hospital of Fujian Medical University, Zhangzhou, China
| | - Hongxing Han
- Department of Neurology, Linyi People's Hospital, Linyi, Shandong, China
| | | | - Volker Puetz
- Department of Neurology, University Clinics Carl Gustav Carus an der Technischen Universität Dresden, Dresden, Germany
| | - Tingyu Yi
- Department of Neurology, Zhangzhou Affiliated Hospital of Fujian Medical University, Zhangzhou, China
| | - Hao Wang
- Department of Neurology, Linyi People's Hospital, Linyi, Shandong, China
| | - Raynald Liu
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Xu Tong
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Baixue Jia
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Ning Ma
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Feng Gao
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Dapeng Mo
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Bernard Yan
- Department of Medicine and Neurology, Melbourne Brain Centre, Melbourne, Australia
| | - Peter J Mitchell
- Department of Radiology, Melbourne Brain Centre, Melbourne, Australia
| | - Thomas W Leung
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong SAR, China
| | - Dileep R Yavagal
- Departments of Neurology and Neurosurgery, Jackson Memorial Hospital, University of Miami Miller School of Medicine, Miami, Florida
| | - Gregory W Albers
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, California
| | - Vincent Costalat
- Department of Neuroradiology, Hôpital Güi-de-Chauliac, CHU de Montpellier, Montpellier, France
| | - Jens Fiehler
- Department of Neuroradiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Osama O Zaidat
- Department of Neuroscience, Mercy Saint Vincent Medical Center, Toledo, Ohio
| | - Tudor G Jovin
- Department of Neurology, Cooper University Hospital, Camden, New Jersey
| | - David S Liebeskind
- Department of Neurology, University of California, Los Angeles, Los Angeles, California
| | - Thanh N Nguyen
- Department of Radiology, Boston Medical Center, Boston, Massachusetts
| | - Zhongrong Miao
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
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Ni H, Zhou C, Hang Y, Jia ZY, Cao YZ, Shi HB, Liu S, Zhao LB. Endovascular treatment for acute ischaemic stroke caused by isolated internal carotid artery occlusion: treatment strategies, outcomes, and prognostic factors. Clin Radiol 2023; 78:451-458. [PMID: 36932006 DOI: 10.1016/j.crad.2023.02.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 02/13/2023] [Accepted: 02/19/2023] [Indexed: 03/06/2023]
Abstract
AIM To describe the experience of endovascular treatment (EVT) of acute ischaemic stroke caused by isolated internal carotid artery (ICA) occlusion, with emphasis on treatment strategies, outcomes, and prognostic factors. MATERIALS AND METHODS A retrospective examination was performed of 66 consecutive patients with acute moderate-to-severe stroke who underwent EVT for isolated ICA occlusion from July 2016 to June 2021. The modified thrombolysis in cerebral ischaemia (mTICI) score was used to evaluate reperfusion outcomes. A multivariate analysis was performed to identify risk factors associated with poor 90-day outcome (modified Rankin Scale [mRS] 3-6). RESULTS The National Institutes of Health Stroke Scale (NIHSS) median score of the 66 patients at admission was 15. Twelve patients (18.2%) showed thrombus migration to the M1 segment or proximal M2 during EVT and underwent additional intracranial thrombectomy. Successful reperfusion (mTICI 2b-3) was achieved in 60 patients (90.9%) and complete reperfusion (mTICI 3) in 42 (63.6%). A poor functional outcome was seen in 27 patients (40.9%). The rate of 90-day mortality was 9.1% (6/66). Higher NIHSS scores and a lower Alberta Stroke Program Early CT Score (ASPECTS) were independently associated with poor outcomes. Complete reperfusion was the only treatment factor with a significant predictive value (adjusted odds ratio [OR] 0.03; 95% CI = 0.01 to 0.25; p=0.001). CONCLUSION Endovascular therapy is safe and effective in patients with acute ischaemic stroke due to isolated ICA occlusion. Prevention of thrombus migration and complete reperfusion should be the aim of EVT.
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Affiliation(s)
- H Ni
- Department of Interventional Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - C Zhou
- Department of Interventional Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Y Hang
- Department of Interventional Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Z-Y Jia
- Department of Interventional Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Y-Z Cao
- Department of Interventional Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - H-B Shi
- Department of Interventional Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - S Liu
- Department of Interventional Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - L-B Zhao
- Department of Interventional Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.
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Kurisu K, Uchida K, Okuyama T, Miyata K, Yamaguchi Y, Ajiki M, Takada T, Hokari M, Asaoka K, Itamoto K, Fujimura M. Clinical characteristics of endovascular treatment for acute ischemic stroke with atherosclerotic etiology: factors associating its clinical outcome. Clin Neurol Neurosurg 2023; 228:107680. [PMID: 36989680 DOI: 10.1016/j.clineuro.2023.107680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Revised: 03/06/2023] [Accepted: 03/15/2023] [Indexed: 03/18/2023]
Abstract
OBJECTIVE Clinical characteristics of endovascular treatment (EVT) for acute ischemic stroke (AIS) secondary to atherosclerosis are not fully delineated. An optimal treatment strategy with considerations of stroke etiology has not yet been established. Here-in, we performed retrospective analysis of EVT for atherosclerotic AIS. METHODS Data from patients with AIS who underwent EVT between 2017 and 2022 were analyzed. Clinical characteristics, procedural data, and outcomes were assessed. Further analysis was conducted to elucidate the factors associated with clinical outcomes. And data of patients with poor clinical outcomes (mRS, 5 or 6) were evaluated further to determine the primary cause. RESULTS Among 194 patients who received EVT, 40 (20.6%) were diagnosed with AIS with an atherosclerotic etiology. The rates of successful reperfusion (TICI 2b or 3) and good clinical outcomes (mRS, 0-2) were 95.0% and 45.0%, respectively. No procedure-related complications were noted. Older age (p = 0.007), more severe baseline NIHSS score (p = 0.004), lesion in the posterior circulation (p = 0.025), and recanalization failure (p = 0.027) were more frequently observed in patients with poor clinical outcomes. Brainstem infarction and postprocedural intracerebral hemorrhage were the main reasons for poor clinical outcomes. CONCLUSION The EVT for atherosclerotic AIS were effective and safe. Older age, more severe NIHSS score, lesions in the posterior circulation, and recanalization failure were the factors associated with poor clinical outcomes. It is important to recognize that these factors may aggravate the clinical response to this promising therapy, even in patient successful recanalization was attained.
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Affiliation(s)
- Kota Kurisu
- Department of Neurosurgery, Teine Keijinkai Hospital, Maeda 1-12-1-40, Teine-ku, Sapporo, Hokkaido 006-8111, Japan.
| | - Kazuki Uchida
- Department of Neurosurgery, Teine Keijinkai Hospital, Maeda 1-12-1-40, Teine-ku, Sapporo, Hokkaido 006-8111, Japan.
| | - Tomohiro Okuyama
- Department of Neurosurgery, Teine Keijinkai Hospital, Maeda 1-12-1-40, Teine-ku, Sapporo, Hokkaido 006-8111, Japan.
| | - Kei Miyata
- Department of Neurosurgery, Teine Keijinkai Hospital, Maeda 1-12-1-40, Teine-ku, Sapporo, Hokkaido 006-8111, Japan.
| | - Yoshitaka Yamaguchi
- Department of Cerebrovascular Medicine, Teine Keijinkai Hospital, Maeda 1-12-1-40, Teine-ku, Sapporo, Hokkaido 006-8111, Japan.
| | - Minoru Ajiki
- Department of Cerebrovascular Medicine, Teine Keijinkai Hospital, Maeda 1-12-1-40, Teine-ku, Sapporo, Hokkaido 006-8111, Japan.
| | - Tatsuro Takada
- Department of Cerebrovascular Medicine, Teine Keijinkai Hospital, Maeda 1-12-1-40, Teine-ku, Sapporo, Hokkaido 006-8111, Japan.
| | - Masaaki Hokari
- Department of Neurosurgery, Teine Keijinkai Hospital, Maeda 1-12-1-40, Teine-ku, Sapporo, Hokkaido 006-8111, Japan.
| | - Katsuyuki Asaoka
- Department of Neurosurgery, Teine Keijinkai Hospital, Maeda 1-12-1-40, Teine-ku, Sapporo, Hokkaido 006-8111, Japan.
| | - Koji Itamoto
- Department of Neurosurgery, Teine Keijinkai Hospital, Maeda 1-12-1-40, Teine-ku, Sapporo, Hokkaido 006-8111, Japan.
| | - Miki Fujimura
- Department of Neurosurgery, Hokkaido University Graduate School of Medicine, Kita 15, Nishi 7, Kita-ku, Sapporo, Hokkaido 060-8638, Japan.
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Ni H, Yang T, Jia Z, Shi H, Liu S, Zhao L. Outcomes in acute ischemic stroke patients undergoing endovascular thrombectomy: Cervical internal carotid artery pseudo-occlusion vs. true occlusion. Front Neurol 2023; 13:1106358. [PMID: 36698876 PMCID: PMC9868848 DOI: 10.3389/fneur.2022.1106358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Accepted: 12/19/2022] [Indexed: 01/12/2023] Open
Abstract
Background and purpose Pseudo-occlusion of the cervical internal carotid artery (cICA) refers to an absence of intraluminal contrast on computed tomography angiography (CTA), while the artery is patent on digital subtraction angiography during endovascular thrombectomy. We aimed to compare the outcomes between the cICA pseudo-occlusion and true occlusion after thrombectomy. Methods We retrospectively analyzed patients with apparent cICA occlusion on CTA who underwent thrombectomy between January 2016 and August 2021, and divided them into the pseudo-occlusion and true occlusion groups based on angiographic exploration. Recanalization failure was defined as a modified Thrombolysis in Cerebral Infarction score of 0-2a. Poor outcome was defined as a 90-day modified Rankin Scale score of 3-6. Propensity score matching was performed to compare the outcomes. Sensitivity analysis using multivariate-adjusted regression in the original cohort was conducted to test the robustness of the findings. Results Of the 146 patients included, 79 patients (54.1%) had cICA pseudo-occlusion and 67 patients (45.9%) had true occlusion. Following 1:1 propensity score-matched analysis, patients with pseudo-occlusion had an increased likelihood of recanalization failure (OR, 3.18; 95% CI, 1.06-9.59; P = 0.040) and poor outcome (OR, 2.80; 95% CI, 1.07-7.30; P = 0.035) compared with patients with true occlusion. Sensitivity analysis showed that cICA pseudo-occlusion remained independently associated with recanalization failure (OR, 2.55; 95% CI, 1.07-6.09; P = 0.036) and poor outcome (OR, 2.48; 95% CI, 1.08-5.67; P = 0.032). Conclusions Patients with cICA pseudo-occlusion on CTA treated with thrombectomy had an increased risk of reperfusion failure and poor outcome compared with true occlusion patients.
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Affiliation(s)
- Heng Ni
- Department of Interventional Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Tao Yang
- Department of Neurology, Changzhou Second People's Hospital, Changzhou, China
| | - Zhenyu Jia
- Department of Interventional Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Haibin Shi
- Department of Interventional Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Sheng Liu
- Department of Interventional Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China,Sheng Liu ✉
| | - Linbo Zhao
- Department of Interventional Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China,*Correspondence: Linbo Zhao ✉
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