Journal of cerebrovascular and endovascular neurosurgery最新文献

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Traumatic middle meningeal artery pseudoaneurysm: Case report and review of literature. 外伤性脑膜中动脉假性动脉瘤1例报告及文献复习。
Journal of cerebrovascular and endovascular neurosurgery Pub Date : 2026-06-01 Epub Date: 2026-01-21 DOI: 10.7461/jcen.2026.E2025.08.003
Mohammed Nadeem, Harsh Deora, Abhinith Shashidhar, Malla Bhaskara Rao
{"title":"Traumatic middle meningeal artery pseudoaneurysm: Case report and review of literature.","authors":"Mohammed Nadeem, Harsh Deora, Abhinith Shashidhar, Malla Bhaskara Rao","doi":"10.7461/jcen.2026.E2025.08.003","DOIUrl":"10.7461/jcen.2026.E2025.08.003","url":null,"abstract":"","PeriodicalId":94072,"journal":{"name":"Journal of cerebrovascular and endovascular neurosurgery","volume":" ","pages":"190-191"},"PeriodicalIF":0.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13334152/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146004966","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Interobserver agreement among clinicians in the treatment recommendations for patients with unruptured intracranial aneurysms. 临床医师对未破裂颅内动脉瘤患者治疗建议的观察者间一致意见。
Journal of cerebrovascular and endovascular neurosurgery Pub Date : 2026-06-01 Epub Date: 2025-10-31 DOI: 10.7461/jcen.2025.E2025.07.001
O-Ki Kwon, Seung Pil Ban, Young Deok Kim, Hwan Seok Shim, Seung Bin Sung
{"title":"Interobserver agreement among clinicians in the treatment recommendations for patients with unruptured intracranial aneurysms.","authors":"O-Ki Kwon, Seung Pil Ban, Young Deok Kim, Hwan Seok Shim, Seung Bin Sung","doi":"10.7461/jcen.2025.E2025.07.001","DOIUrl":"10.7461/jcen.2025.E2025.07.001","url":null,"abstract":"<p><strong>Objective: </strong>In practice, variability in clinical decisions among clinicians can exist and may be acceptable. However, from the patient's standpoint, particularly for those with potentially life-threatening conditions such as unruptured intracranial aneurysms (UIAs), this variability can be confusing and concerning. In this study, the levels of interobserver agreement in clinical decisions among three endovascular neurosurgeons working at the same hospital were analyzed using a newly developed grade of recommendation (GOR) system.</p><p><strong>Methods: </strong>A total of 161 consecutive patients with 202 UIAs were included in this study. The GOR system consists of six grades, representing various clinicians' recommendations, including treatment or no-treatment. The three observers reviewed the medical records and digital subtraction angiography images, and then assigned the corresponding GORs for each aneurysm. Interobserver agreement was analyzed using Fleiss' kappa values.</p><p><strong>Results: </strong>The overall Fleiss' kappa among three observers was 0.52, indicating a moderate level of interobserver agreement. The agreement was relatively high for grades 1 and 5. It was the lowest for grade 3. When GORs were classified as treatment, middle and no-treatment groups, the overall kappa value was 0.84, indicating almost perfect.</p><p><strong>Conclusions: </strong>This study shows that the level of interobserver agreement was very high for treatment versus no-treatment decisions, but moderate regarding the strength of the recommendations. Further studies are needed to clarify the detailed reasons for the similarities and differences in clinicians' recommendations.</p>","PeriodicalId":94072,"journal":{"name":"Journal of cerebrovascular and endovascular neurosurgery","volume":" ","pages":"131-139"},"PeriodicalIF":0.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13334151/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145411290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mean platelet volume and clinical outcomes in patients with acute ischemic stroke: A systematic review and meta-analysis. 急性缺血性脑卒中患者的平均血小板体积和临床结果:一项系统回顾和荟萃分析。
Journal of cerebrovascular and endovascular neurosurgery Pub Date : 2026-06-01 Epub Date: 2026-02-25 DOI: 10.7461/jcen.2026.E2025.11.007
Miguel Cabanillas-Lazo, Claudia Cruzalegui-Bazán, Renzo Vallejos-Esquen, Milenka Cierto-Torre, Milagros Pascual-Guevara, Carlos Quispe-Vicuña, Alvaro Lopez-Luza, Joel M Sequeiros, Carlos Alva-Díaz
{"title":"Mean platelet volume and clinical outcomes in patients with acute ischemic stroke: A systematic review and meta-analysis.","authors":"Miguel Cabanillas-Lazo, Claudia Cruzalegui-Bazán, Renzo Vallejos-Esquen, Milenka Cierto-Torre, Milagros Pascual-Guevara, Carlos Quispe-Vicuña, Alvaro Lopez-Luza, Joel M Sequeiros, Carlos Alva-Díaz","doi":"10.7461/jcen.2026.E2025.11.007","DOIUrl":"10.7461/jcen.2026.E2025.11.007","url":null,"abstract":"<p><strong>Objective: </strong>Mean platelet volume (MPV) is a laboratory marker that reflects platelet activity and has been linked to a higher risk of thromboembolic events. This study aimed to evaluate MPV as a potential biomarker for clinical outcomes in acute ischemic stroke.</p><p><strong>Methods: </strong>A systematic search was conducted in PubMed, Embase, Scopus, Web of Science, and Google Scholar up to March 2024. Risk of bias was assessed using the Newcastle-Ottawa Scale. When meta-analysis was not feasible, a narrative synthesis was performed. Subgroup and sensitivity analyses were planned, and the certainty of evidence was graded using the GRADE approach.</p><p><strong>Results: </strong>Out of 534 studies, 57 were included (10,979 patients). Higher MPV levels were associated with poor functional outcomes (modified Rankin Scale [mRS] >2) at 90 days, although with high heterogeneity (MD: 0.50; 95% CI: 0.31-0.70; I2=82%). A weak positive correlation was found between MPV and impairment measure (National Institutes of Health Stroke Scale [NIHSS]: r=0.140-0.221). MPV was also associated with mortality at 3 months (OR: 3.88) and 1 year (OR: 1.76). No significant associations were observed with one-year disability, hemorrhagic transformation, cerebral microbleeds, or in-hospital complications.</p><p><strong>Conclusions: </strong>In summary, MPV may be associated with worse 90-day functional outcomes and mortality; however, its correlation with impairment severity measured by NIHSS was weak. Further studies are needed to establish optimal cut-off values and incorporate MPV into predictive models.</p>","PeriodicalId":94072,"journal":{"name":"Journal of cerebrovascular and endovascular neurosurgery","volume":" ","pages":"107-130"},"PeriodicalIF":0.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13334157/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147286827","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Safety and efficacy of staged bilateral carotid artery stenting for bilateral carotid webs. 分阶段双侧颈动脉支架置入术治疗双侧颈动脉网的安全性和有效性。
Journal of cerebrovascular and endovascular neurosurgery Pub Date : 2026-06-01 Epub Date: 2025-10-30 DOI: 10.7461/jcen.2025.E2025.03.002
Gianeshwaree Alias Rachna Panjwani, Jeffrey M Breton, Samir Sur, Paul Singh
{"title":"Safety and efficacy of staged bilateral carotid artery stenting for bilateral carotid webs.","authors":"Gianeshwaree Alias Rachna Panjwani, Jeffrey M Breton, Samir Sur, Paul Singh","doi":"10.7461/jcen.2025.E2025.03.002","DOIUrl":"10.7461/jcen.2025.E2025.03.002","url":null,"abstract":"<p><p>Carotid webs are endoluminal shelf-like projections caused by fibrous dysplasia observed along the dorsal carotid bulb of the internal carotid artery (ICA). Symptomatic lesions have historically been treated with endarterectomy or stent placement and there is little data to support treating a patient with medical management alone. An asymptomatic contralateral carotid web may be discovered during stroke work-up. In this study, we evaluate the safety and efficacy of staged bilateral carotid artery stenting for bilateral carotid webs. We report three cases: the first patient presented with recurrent transient ischemic attacks attributable to an ipsilateral ICA with associated carotid web and the other two presented with right middle cerebral artery strokes requiring emergent endovascular mechanical thrombectomy. Bilateral carotid webs were identified, with the ipsilateral lesion considered the likely embolic source. All three patients underwent successful carotid stenting of their symptomatic carotid webs followed by staged contralateral stenting of their asymptomatic webs. All patients were premedicated with a dual antiplatelet regimen of aspirin and clopidogrel. There was no clinical history of recurrent stroke/transient ischemic attack (TIA) or death peri-procedurally or in follow-up. Bilateral carotid web stenting is a safe and effective treatment in patients presenting with symptomatic carotid webs with associated contralateral lesions.</p>","PeriodicalId":94072,"journal":{"name":"Journal of cerebrovascular and endovascular neurosurgery","volume":" ","pages":"171-176"},"PeriodicalIF":0.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13334149/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145395646","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Twig-like middle cerebral artery: Clinical and radiological features - a study of three patients from a single center. 细枝状大脑中动脉:临床和放射学特征-来自单一中心的三例患者的研究。
Journal of cerebrovascular and endovascular neurosurgery Pub Date : 2026-06-01 Epub Date: 2026-02-11 DOI: 10.7461/jcen.2026.E2025.10.007
Ebrahim Hejazian, Iman Kazemi, Hadi Ebrahimi, Hamed Ahmadian, Amir-Hosein Zohrevand, Mostafa Esmaeilnia Shirvani, Shahriyar Nikouhemat, Morteza Sharifzadeh
{"title":"Twig-like middle cerebral artery: Clinical and radiological features - a study of three patients from a single center.","authors":"Ebrahim Hejazian, Iman Kazemi, Hadi Ebrahimi, Hamed Ahmadian, Amir-Hosein Zohrevand, Mostafa Esmaeilnia Shirvani, Shahriyar Nikouhemat, Morteza Sharifzadeh","doi":"10.7461/jcen.2026.E2025.10.007","DOIUrl":"10.7461/jcen.2026.E2025.10.007","url":null,"abstract":"<p><p>Twig-like middle cerebral artery (T-MCA) is a vascular anomaly in which the M1 segment of the MCA is replaced by a plexiform network of small vessels. It may present with hemorrhagic or ischemic stroke or be detected incidentally. In this paper, we report three rare cases of T-MCA and describe their clinical and radiological characteristics as well as their clinical courses. A secondary objective was to provide a rough estimate of the occurrence of T-MCA among patients who underwent cerebral angiography in our center. From 2019 to 2023, 810 patients underwent brain digital subtraction angiography (DSA) at our center, of which three (0.37%) had T-MCA. Two patients presented with subarachnoid hemorrhage, and one was incidentally diagnosed. None were candidates for bypass surgery due to comorbidities, overall clinical condition, or patient preference, and all received conservative management. Two patients were discharged alert and without deficits, while one had a poor outcome, remaining in a vegetative state after complications of hemorrhage, hydrocephalus, and meningitis. T-MCA is a rare congenital anomaly with an estimated occurrence of approximately 0.37% among patients undergoing cerebral angiography in our center. This study adds three new patients to the limited literature and highlights their clinical presentations, radiological features, management decisions, and short-term outcomes. Further studies are needed to clarify its epidemiology, natural history, and optimal management strategies.</p>","PeriodicalId":94072,"journal":{"name":"Journal of cerebrovascular and endovascular neurosurgery","volume":" ","pages":"177-183"},"PeriodicalIF":0.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13334155/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146159772","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Double trouble: Ruptured venous aneurysm in dural arteriovenous fistula caused by focal venous hypertension - a rare cerebrovascular case. 双重困扰:局灶性静脉高压致硬脑膜动静脉瘘静脉动脉瘤破裂-一例罕见的脑血管病例。
Journal of cerebrovascular and endovascular neurosurgery Pub Date : 2026-06-01 Epub Date: 2025-10-30 DOI: 10.7461/jcen.2025.E2025.09.007
Wan Nurul Sakinah Wan Mohd Azaharuddin, Teck Cheng Yap, Mohd Sofan Zenian
{"title":"Double trouble: Ruptured venous aneurysm in dural arteriovenous fistula caused by focal venous hypertension - a rare cerebrovascular case.","authors":"Wan Nurul Sakinah Wan Mohd Azaharuddin, Teck Cheng Yap, Mohd Sofan Zenian","doi":"10.7461/jcen.2025.E2025.09.007","DOIUrl":"10.7461/jcen.2025.E2025.09.007","url":null,"abstract":"<p><p>Dural arteriovenous fistulas (dAVFs) are uncommon intracranial vascular shunts that typically cause hemorrhage when retrograde cortical venous drainage and diffuse venous hypertension are present. Venous aneurysms are usually considered a sequela of sustained venous hypertension; however, localized focal hemodynamic stress may also contribute to aneurysm formation and rupture. We report a rare case of a 51-year-old woman who presented with acute expressive aphasia and dense right hemiparesis. Imaging revealed a large left temporoparietal intracerebral hemorrhage with subarachnoid extension. Digital subtraction angiography demonstrated a left temporal dAVF supplied by the middle meningeal artery and draining via the veins of Trolard and Labbé into the superior sagittal sinus. A discrete saccular venous aneurysm was identified at a sharply angulated and stenotic draining segment, suggesting localized venous hypertension without diffuse angiographic congestion. Transarterial embolization using Onyx-18 achieved complete obliteration of the fistula and aneurysm. At one-month follow-up, the patient showed complete recovery of aphasia and marked motor improvement. This case illustrates that focal venous hypertension, even without diffuse angiographic congestion, can result in aneurysm formation and rupture. Early angiographic assessment and endovascular intervention remain critical for favorable outcomes.</p>","PeriodicalId":94072,"journal":{"name":"Journal of cerebrovascular and endovascular neurosurgery","volume":" ","pages":"166-170"},"PeriodicalIF":0.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13334154/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145403288","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Identification of middle meningeal artery confluence point in 3D CT scan images of Filipinos as pre-operative planning for management of chronic subdural hematoma: A cross-sectional morphometric study. 在菲律宾人的三维CT扫描图像中识别脑膜中动脉汇合点作为慢性硬膜下血肿的术前计划:一项横断面形态计量学研究。
Journal of cerebrovascular and endovascular neurosurgery Pub Date : 2026-06-01 Epub Date: 2026-01-28 DOI: 10.7461/jcen.2026.E2025.09.002
John Emmanuel Rivera Torio, Elmer Jose Arevalo Meceda, Francis Raphael Oanes, Milthon Anli Cua, Diether Rafael Elbangcol
{"title":"Identification of middle meningeal artery confluence point in 3D CT scan images of Filipinos as pre-operative planning for management of chronic subdural hematoma: A cross-sectional morphometric study.","authors":"John Emmanuel Rivera Torio, Elmer Jose Arevalo Meceda, Francis Raphael Oanes, Milthon Anli Cua, Diether Rafael Elbangcol","doi":"10.7461/jcen.2026.E2025.09.002","DOIUrl":"10.7461/jcen.2026.E2025.09.002","url":null,"abstract":"<p><strong>Objective: </strong>Chronic subdural hematoma (CSDH) commonly affects older adults and remains associated with recurrence despite surgical evacuation. Coagulation of middle meningeal artery (MMA) during burr-hole drainage may be useful where MMA embolization is unavailable, however reliable external landmarks for MMA localization are poorly defined. This study aimed to identify the MMA confluence point on 3D cranial CT scans of elderly Filipino patients and define its relationship to external cranial landmarks to support pre-operative planning.</p><p><strong>Methods: </strong>A retrospective cross-sectional morphometric study was performed using plain cranial CT scans of patients aged ≥65 years from 2019 to 2023. Scans with intact calvarial anatomy and adequate visualization of MMA groove were included. Threedimensional reconstructions were generated, and bilateral distances from lateral canthus, external auditory canal, and canthomeatal line to MMA confluence point were measured. Analyses were performed by sex and laterality (p<0.05).</p><p><strong>Results: </strong>A total of 221 patients were included (mean age 76 years; 63% female). The external auditory canal and lateral canthus showed low variability. Male patients had greater external auditory canal and canthomeatal line distances (p<0.05), while confluence measurements did not differ by sex. The confluence point was located farther from the canthomeatal line on the left (p=0.0125).</p><p><strong>Conclusions: </strong>These findings provide a practical framework for MMA localization during pre-operative planning. In settings without MMA embolization, landmark-based localization offers a low-cost method to guide burr-hole placement and potential MMA coagulation, supporting resource-adapted strategy to reduce CSDH recurrence.</p>","PeriodicalId":94072,"journal":{"name":"Journal of cerebrovascular and endovascular neurosurgery","volume":" ","pages":"159-165"},"PeriodicalIF":0.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13334150/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146069329","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ultrasound guided microsurgical resection of cerebral arteriovenous malformations. 超声引导下脑动静脉畸形显微外科切除术。
Journal of cerebrovascular and endovascular neurosurgery Pub Date : 2026-06-01 Epub Date: 2025-12-31 DOI: 10.7461/jcen.2025.E2025.08.005
Mohamed M Elsherbini, Mohamed A Kassem, Ashraf Ezzeldein, Ibrahim Eltantawy, Abdul Aziz Ismail, Mohamed Farouk
{"title":"Ultrasound guided microsurgical resection of cerebral arteriovenous malformations.","authors":"Mohamed M Elsherbini, Mohamed A Kassem, Ashraf Ezzeldein, Ibrahim Eltantawy, Abdul Aziz Ismail, Mohamed Farouk","doi":"10.7461/jcen.2025.E2025.08.005","DOIUrl":"10.7461/jcen.2025.E2025.08.005","url":null,"abstract":"<p><strong>Objective: </strong>Microsurgical excision of intracranial arteriovenous malformations (AVMs) remains a surgical challenge that requires neurosurgical experience as well as neurosurgical tools. Advances in medical devices widen the range of tools that can be used to ensure patients' safety and procedural integrity. There is limited data published regarding the role of intraoperative ultrasound to ensure proper cerebral arteriovenous malformation excision.</p><p><strong>Methods: </strong>Patients who underwent ultrasound-assisted microsurgical excision of cerebral arteriovenous malformations were reviewed in a single center from 2021 through 2024. Patients' clinical, radiological, and intraoperative data were retrieved and analyzed.</p><p><strong>Results: </strong>Twenty patients were included in the study. All lesions were in the cerebral regions. The study included 20 patients, 11 (55%) of whom were males and the patients' ages ranged from 5 to 55 years. Sixteen patients (80%) presented with headache, 13 patients (65%) with seizures, 8 patients (40%) with syncope, 2 patients (10%) with vomiting, and 6 patients (30%) with weakness.Thirteen patients (65%) had intracranial hemorrhage (ICH) on presentation. For all cases, intraoperative ultrasound (IOUS) was successful in confirming total resection of the lesion. In 13 cases that involved an intracerebral hematoma took place, the hematoma was visualized easily with grey-scale B-mode ultrasound, as well as its relation to the nidus was clearly delineated.</p><p><strong>Conclusions: </strong>Intraoperative ultrasonography is a useful, cost-effective, and non-invasive tool for guiding through cerebral arteriovenous malformation microsurgical excision.</p>","PeriodicalId":94072,"journal":{"name":"Journal of cerebrovascular and endovascular neurosurgery","volume":" ","pages":"140-151"},"PeriodicalIF":0.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13334153/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145851451","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Quantitative magnetic resonance angiography demonstrates persistent flow improvement following cerebrovascular stenting. 定量磁共振血管造影显示脑血管支架植入术后血流持续改善。
Journal of cerebrovascular and endovascular neurosurgery Pub Date : 2026-05-27 DOI: 10.7461/jcen.2026.E2025.12.001
Shyle H Mehta, Aliana Rao, Brett Silber, Miriam Shao, Justin Turpin, Cassidy Werner, Daniel Lynch, Danielle Golub, Athos Patsalides, Henry Woo, Timothy White
{"title":"Quantitative magnetic resonance angiography demonstrates persistent flow improvement following cerebrovascular stenting.","authors":"Shyle H Mehta, Aliana Rao, Brett Silber, Miriam Shao, Justin Turpin, Cassidy Werner, Daniel Lynch, Danielle Golub, Athos Patsalides, Henry Woo, Timothy White","doi":"10.7461/jcen.2026.E2025.12.001","DOIUrl":"https://doi.org/10.7461/jcen.2026.E2025.12.001","url":null,"abstract":"<p><strong>Objective: </strong>While improved cerebral blood flow is expected following stent placement for cerebrovascular atherosclerotic disease, objective quantification of these hemodynamic changes remains limited. Quantitative magnetic resonance angiography (qMRA) offers a non-invasive, reproducible method to measure volumetric flow and evaluate both immediate and long-term hemodynamic effects of stenting.</p><p><strong>Methods: </strong>We retrospectively reviewed all patients who underwent stenting for cerebrovascular atherosclerotic disease using Onyx drug-eluting stents (DES) between January 2018 and September 2024. Demographics, clinical presentation and follow-up, radiographic findings, procedural details, and complications were collected. Outcomes assessed were procedural success, periprocedural stroke, in-stent restenosis (ISR) requiring reintervention, and qMRA flow measurements obtained pre-stenting, post-stenting, and at long-term follow-up. The median long-term follow-up duration was 9.4 months for qMRA.</p><p><strong>Results: </strong>A total of 63 patients with 84 Onyx DES were included (mean age 63.1±11.37 years; 33.3% female). The median number of stents deployed per patient was 1.0; mean stent length and diameter were 11.02±3.92 mm and 2.5±0.88mm, respectively. ISR occurred in 15.9% of patients. Technical and clinical complications each occurred in 4.8% of patients. qMRA across all vessels demonstrated a significant increase in flow post-stent and remained elevated at long-term follow-up. Vessel-specific analysis confirmed significant and persistent post-stent flow augmentation in the basilar, vertebral (VA), middle cerebral, and internal carotid arteries (ICA). Although mean VA and ICA flow declined modestly from post-stent to long-term follow-up, values remained markedly elevated compared to pre-stent baselines and flow augmentation was comparable across vessels.</p><p><strong>Conclusions: </strong>qMRA demonstrated robust, persistent improvements in cerebral blood flow following Onyx stenting for cerebrovascular atherosclerotic disease.</p>","PeriodicalId":94072,"journal":{"name":"Journal of cerebrovascular and endovascular neurosurgery","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148019762","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A case of falx cerebelli dural arteriovenous fistula with perimedullary venous reflux after occipital bone fracture. 枕骨骨折后镰小脑硬脑膜动静脉瘘伴髓周静脉回流1例。
Journal of cerebrovascular and endovascular neurosurgery Pub Date : 2026-05-27 DOI: 10.7461/jcen.2026.E2026.04.004
Yuta Sasaki, Toshitsugu Terakado, Atsushi Hidano, Kiyotaka Toyota, Koichi Okamura, Takuya Kawai, Yoji Tanaka
{"title":"A case of falx cerebelli dural arteriovenous fistula with perimedullary venous reflux after occipital bone fracture.","authors":"Yuta Sasaki, Toshitsugu Terakado, Atsushi Hidano, Kiyotaka Toyota, Koichi Okamura, Takuya Kawai, Yoji Tanaka","doi":"10.7461/jcen.2026.E2026.04.004","DOIUrl":"https://doi.org/10.7461/jcen.2026.E2026.04.004","url":null,"abstract":"<p><p>Intracranial dural arteriovenous fistulas (dAVFs) with perimedullary venous reflux are uncommon but can lead to progressive myelopathy. Although most dAVFs are idiopathic or associated with dural sinus thrombosis, a falx cerebelli dAVF developing after an occipital bone fracture is exceedingly rare and clinically important. We report a 77-year-old patient who presented with 1 month of progressive bilateral lower-extremity weakness, urinary retention, and hiccups, 1 year after an occipital bone fracture. Magnetic resonance imaging showed longitudinal T2-weighted imaging hyperintensity from the medulla to the C4 level with ventral perimedullary flow voids. Cerebral angiography demonstrated a falx cerebelli dAVF fed by bilateral occipital arteries traversing the fracture line with retrograde reflux to intracranial and spinal veins (Borden type III, Cognard type V). Transarterial embolization with n-butyl-2-cyanoacrylate achieved complete angiographic obliteration, and the magnetic resonance imaging abnormalities resolved by 9 months. Falx cerebelli dAVFs after skull fracture are extremely rare but should be considered in patients with progressive myelopathy.</p>","PeriodicalId":94072,"journal":{"name":"Journal of cerebrovascular and endovascular neurosurgery","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148019721","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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